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Passage 2 They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light years from earth. (1) But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected; the US National Aeronautics and Space Administration’s Cosmic Background Explorer satellite—Cobe—had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy). (2) The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos. According the theory, the universe burst into being as a submicroscopic, unimaginable dense knot of pure energy that flew outward in all directions, emitting radiation as it went, condensing into particles and then into atoms of gas. Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans. Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and superclusters of galaxies. They shouldn’t have long to wait. (3) Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon. (4) If the small hot spots look as expected, that will be a triumph for yet another scientific idea, a refinement of the Big Bang called the inflationary universe theory. Inflation says that very early on, the universe expanded in size by more than a trillion fold in much less than a second, propelled by a sort of antigravity. (5) Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.
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更多 “问答题Passage 2 They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light years from earth. (1) But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected; the US National Aeronautics and Space Administration’s Cosmic Background Explorer satellite—Cobe—had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy). (2) The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos. According the theory, the universe burst into being as a submicroscopic, unimaginable dense knot of pure energy that flew outward in all directions, emitting radiation as it went, condensing into particles and then into atoms of gas. Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans. Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and superclusters of galaxies. They shouldn’t have long to wait. (3) Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon. (4) If the small hot spots look as expected, that will be a triumph for yet another scientific idea, a refinement of the Big Bang called the inflationary universe theory. Inflation says that very early on, the universe expanded in size by more than a trillion fold in much less than a second, propelled by a sort of antigravity. (5) Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.” 相关考题
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have beenpart of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The body of the iceman was found in the mountains mainly because__________.A:two Germans were climbing mountainsB:he was just on a mountain passC: the melted ice made him visibleD:he was lying on the ice
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have beenpart of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.All the following are assumptions once made about the iceman EXCEPT_______________.A:he was a soldier in World War ⅠB:he came from ItalyC:he was a Swiss woman's long-lost fatherD:he was born about a thousand years ago
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have beenpart of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.What can be inferred from Paragraph 2?A:The iceman could have died from the wound in the head.B:The iceman was struck dead from behind.C:The iceman was killed while working.D:The iceman lived a poor life.
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have beenpart of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The word"bandits"in Paragraph 4 could be best replaced by______________.A:robbersB:shooters C:soldiers D:hunters
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area. A Swiss woman believed it might be her father, who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound, and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have beenpart of a larger war,or he might have beenl fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The scientists made the deduction that the iceman______________.A:was hit in the shoulder by an arrowheadB:had a tiny hole in his skin causing his deathC:was probably in some kind of a battleD:had got a wound on the back of his head
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots. Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man? How and when had he died? Everybody had a different answer to these ques- tions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however, tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tinyhole in his skin,but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.What can be inferred from Paragraph 2?A:The iceman was struck dead from behind.B:The iceman could have died from the wound in the head.C:The iceman was killed while working.D:The iceman lived a poor life.
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots. Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man? How and when had he died? Everybody had a different answer to these ques- tions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however, tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tinyhole in his skin,but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.The word"bandits"in Paragraph 4 could be best replaced by__________.A:soldiersB:huntersC:robbersD:shooters
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots. Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man? How and when had he died? Everybody had a different answer to these ques- tions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however, tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tinyhole in his skin,but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.The scientists made the deduction that the iceman__________.A:had got a wound on the back of his headB:had a tiny hole in his skin causing his deathC:was hit in the shoulder by an arrowheadD:was probably in some kind of a battle
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots. Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man? How and when had he died? Everybody had a different answer to these ques- tions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however, tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tinyhole in his skin,but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.The body of the Iceman was found in the mountains mainly because__________.A:the melted ice made him visibleB:he was just on a mountain passC:two Germans were climbing the mountainsD:he was lying on the ice
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第三篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent, but 1991 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots. Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man? How and when had he died? Everybody had a different answer to these ques- tions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War I,since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old.Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however, tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tinyhole in his skin,but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.All the following are assumptions once made about the iceman EXCEPT__________.A:he was a Swiss woman's long-lost fatherB:he came from ItalyC:he was a soldier in World War ID:he was born about a thousand years ago
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was the man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modem dating techniques,the. scientists soon leamed that the iceman was about 5,300 years old. Bom in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was proba- bly a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a differ- ent story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits. He might even have been a bandit himself.By studying his clothes and tools,scientists have already leamed a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.All the following are assumptions once made about the iceman EXCEPT__________.A:he was a soldier in World War ⅠB:he came from ItalyC:he was a Swiss woman's long-lost fatherD:He was born about a thousand years ago
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was the man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modem dating techniques,the. scientists soon leamed that the iceman was about 5,300 years old. Bom in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was proba- bly a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a differ- ent story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits. He might even have been a bandit himself.By studying his clothes and tools,scientists have already leamed a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The scientists made the deduction that the icemanA:was hit in the shoulder by an arrowheadB:was probably in some kind of a battleC:had got a wound on the back of his headD:had a tiny hole in his skin causing his death
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was the man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modem dating techniques,the. scientists soon leamed that the iceman was about 5,300 years old. Bom in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was proba- bly a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a differ- ent story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits. He might even have been a bandit himself.By studying his clothes and tools,scientists have already leamed a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.What can be inferred from Paragraph 2?A:The iceman was killed while working.B:The iceman could have died from the wound in the head.C:The iceman lived a poor life.D:The iceman was struck dead from behind.
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was the man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modem dating techniques,the. scientists soon leamed that the iceman was about 5,300 years old. Bom in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was proba- bly a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a differ- ent story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits. He might even have been a bandit himself.By studying his clothes and tools,scientists have already leamed a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The, word "bandits" in Paragraph 4 could be best replaced by__________.A:robbersB:soldiersC:huntersD:shooters
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy. High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice had melted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was the man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modem dating techniques,the. scientists soon leamed that the iceman was about 5,300 years old. Bom in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was proba- bly a hunter who had died in an accident in the high mountains.More recent evidence,however,tells a differ- ent story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin,but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits. He might even have been a bandit himself.By studying his clothes and tools,scientists have already leamed a great deal from the iceman about the times he lived in.we may never know the full story of how he died,but he has given us important clues to the history of those distant times.The body of the iceman was found in the mountains mainly because__________.A:he was lying on the iceB:two Germans were climbing the mountainsC:the melted ice made him visibleD:he was just on a mountain pass
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第一篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.Highup on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice hadmelted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ ,since several soldiers had already been found in the area. A Swiss woman believed it might be her father,whohad died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the Iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probablya hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the Iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.All the following are assumptions once made about the Iceman EXCEPT________.A:he was a soldier in World War ⅠB:he was a Swiss woman's long-lost fatherC:he came from ItalyD:he was born about a thousand years ago
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第一篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.Highup on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice hadmelted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ ,since several soldiers had already been found in the area. A Swiss woman believed it might be her father,whohad died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the Iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probablya hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the Iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.The word"bandits"in Paragraph 4 could be best replaced by__________.A:soldiers B:huntersC:robbersD:shooters
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第一篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.Highup on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice hadmelted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ ,since several soldiers had already been found in the area. A Swiss woman believed it might be her father,whohad died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the Iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probablya hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the Iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.The scientists made the deduction that the Iceman________.A:had got a wound on the back of his headB:had a tiny hole in his skin causing his deathC:was hit in the shoulder by an arrowheadD:was probably in some kind of a battle
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第一篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.Highup on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200meters),the ice is usually permanent,but 1991 had been an especially warm year. The mountain ice hadmelted more than usual and so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition, except for a wound in the head.There was still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions.Some people thought that it was from this century,perhaps the body of a soldier who died in World War Ⅰ ,since several soldiers had already been found in the area. A Swiss woman believed it might be her father,whohad died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the Iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe.At first scientists thought he was probablya hunter who had died in an accident in the high mountains.More recent evidence,however,tells a different story.A new kind of X-ray shows an arrowhead still stuck in his shoulder. It left only a tiny hole in his skin, but it caused internal damage and bleeding. He almost certainly died from this wound,and not from the wound on the back of his head.This means that he was probably in some kind of a battle.It might have been part of a larger war,or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the Iceman about the times he lived in.We may never know the full story of how he died,but he has given us important clues to the history of those distant times.What can be inferred from Paragraph 2?A:The Iceman lived a poor life.B:The Iceman was struck dead from behind.C:The Iceman was killed while working.D:The Iceman could have died from the wound in the head.
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a differentstory. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound ontne back of his head. This means that he was probably in some kind of a battle. It might have been Part of alarger war, or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about thetimes he lived in. We may never know the full story of how he died,but he has given us important clues totne history of those distant times.What can be inferred from Paragraph 2?A:The iceman was struck dead from behind.B:The iceman could have died from the wound in the head.C:The iceman was killed while working.D:The iceman lived a poor life.
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a differentstory. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound ontne back of his head. This means that he was probably in some kind of a battle. It might have been Part of alarger war, or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about thetimes he lived in. We may never know the full story of how he died,but he has given us important clues totne history of those distant times.All the following are assumptions once made about the iceman EXCEPT________.A: he was a Swiss woman's long-lost fatherB:he came from ItalyC:he was a soldier in World War ⅠD:he was born about a thousand years ago
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a differentstory. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound ontne back of his head. This means that he was probably in some kind of a battle. It might have been Part of alarger war, or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about thetimes he lived in. We may never know the full story of how he died,but he has given us important clues totne history of those distant times.The body of the iceman was found in the mountains mainly because _____.A:tne melted ice made him visibleB:he was just on a mountain passC:two Germans were climbing the mountainsD:he was lying on the ice
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a differentstory. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound ontne back of his head. This means that he was probably in some kind of a battle. It might have been Part of alarger war, or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about thetimes he lived in. We may never know the full story of how he died,but he has given us important clues totne history of those distant times.The word"bandits"in Paragraph 4 could be best replaced by__________.A:soldiersB:huntersC:robbersD:shooters
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第二篇The IcemanOn a September day in 1991,two Germans were climbing the mountains between Austria and Italy.High up on a mountain pass,they found the body of a man lying on the ice.At that height(10,499 feet,or 3,200 meters),the ice is usually permanent,but 199 1 had been an especially warm year. The mountain ice had melted more than usual so the body had come to the surface.It was lying face downward. The skeleton（骨架）was in perfect condition , except for a wound in the head.There were still skin on the bones and the remains of some clothes.The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots.Nearby was a pair of gloves made of tree bark（树皮）and a holder for arrows.Who was this man?How and when had he died?Everybody had a different answer to these questions. Some people thought that it was from this century,perhaps the body of a soldier who died in World War I, since several soldiers had already been found in the area.A Swiss woman believed it might be her father,who had died in those mountains twenty years before and whose body had never been found.The scientists who rushed to look at the body thought it was probably much older,maybe even a thousand years old.With modern dating techniques,the scientists soon learned that the iceman was about 5,300 years old. Born in about 3300 B.C.,he lived during the Bronze Age in Europe. At first scientists thought he was probably a hunter who had died from an accident in the high mountains.More recent evidence,however,tells a differentstory. A new kind of X-ray shows an arrowhead still stuck in his shoulder. "left only a tiny hole in his skin but it caused internal damage and bleeding. He certainly died from this wound,and not from the wound ontne back of his head. This means that he was probably in some kind of a battle. It might have been Part of alarger war, or he might have been fighting bandits.He might even have been a bandit himself.By studying his clothes and tools,scientists have already learned a great deal from the iceman about thetimes he lived in. We may never know the full story of how he died,but he has given us important clues totne history of those distant times.The scientists made the deduction that the iceman_________.A:had got a wound on the back of his headB:had a tiny hole in his skin causing his deathC:was hit in the shoulder by an arrowheadD:was probably in some kind of a battle
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问答题Passage 2 A land free from destruction, wealth, natural resources, and labor supply--all these were important 1 in helping England to become the center for the Industrial Revolution. 2 they were not enough. Something 3 was needed to start the industrial process. That "something special", was men-- creative individuals who could invent machines, find new sources of power, and 4 business organizations to reshape the society. The men who created the machines of the Industrial Revolution 5 from many backgrounds and many occupations. Many of them were 6 inventors than scientists. A man who is a pure scientist is primarily interested in doing his research accurately. He is not necessarily working 7 that his findings can be used. An inventor or one interested in applied science is usually trying to make something 8 has a concrete use. He tries to solve a problem by following the theories of science or by experimenting 9 trial and error. Regardless 10 his method, he is working to obtain a specific result: the construction of a harvesting machine, the burning of a light bulb, or one of many other objectives. Most of the people who developed the machines of the Industrial Revolution were 11 . A 12 were both scientists and inventors. Even those who had little or no training 13 science might have made their inventions, 14 a groundwork had been laid by scientists years 15 .
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问答题Passage 2 They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light years from earth. (1) But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected; the US National Aeronautics and Space Administration’s Cosmic Background Explorer satellite—Cobe—had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy). (2) The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos. According the theory, the universe burst into being as a submicroscopic, unimaginable dense knot of pure energy that flew outward in all directions, emitting radiation as it went, condensing into particles and then into atoms of gas. Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans. Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and superclusters of galaxies. They shouldn’t have long to wait. (3) Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon. (4) If the small hot spots look as expected, that will be a triumph for yet another scientific idea, a refinement of the Big Bang called the inflationary universe theory. Inflation says that very early on, the universe expanded in size by more than a trillion fold in much less than a second, propelled by a sort of antigravity. (5) Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.
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单选题It is implied in the passage that ______.A
many scientists had known dinoflagellate before 1988B
there had been no such organisms before 1988C
many scientists were in doubt about the nature of the organism in 1988D
no scientists knew anything about the organism in 1988
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问答题They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light years from earth. 1) But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago.That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected; the US National Aeronautics and Space Administration’s Cosmic Background Explorer satellite—Cobe—had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy). 2) The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos.According the theory, the universe burst into being as a submicroscopic, unimaginable dense knot of pure energy that flew outward in all directions, emitting radiation as it went, condensing into particles and then into atoms of gas. Over billions of years, the gas was compressed by gravity into galaxies, stars, plants and eventually, even humans. Cobe is designed to see just the biggest structures, but astronomers would like to see much smaller hot spots as well, the seeds of local objects like clusters and superclusters of galaxies. They shouldn’t have long to wait. 3) Astrophysicists working with ground based detectors at the South Pole and balloon borne instruments are closing in on such structures, and may report their findings soon. 4) If the small hot spots look as expected, that will be a triumph for yet another scientific idea, a refinement of the Big Bang called the inflationary universe theory.Inflation says that very early on, the universe expanded in size by more than a trillion fold in much less than a second, propelled by a sort of antigravity. 5) Odd though it sounds, cosmic inflation is a scientifically plausible consequence of some respected ideas in elementary particle physics, and many astrophysicists have been convinced for the better part of a decade that it is true.
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