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

考题 Scientists didn’t know much about lung cancer _____. A、before longB、until recentlyC、long beforeD、in the past few years

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考题 We can know that before 1995 Mary 。A. had two books publishedB. received many career awardsC. knew how to use a computerD. supported the JDRF by writing

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考题（50）These processes of particle creation and destruction had been predicted from Dirac’s theory before they were actually discovered in nature, and since then they have been observed millions of times.

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考题 The main idea of this passage is ______.A. many animals die during hibernationB. hibernation protects animals during the wintertimeC. scientists feel puzzled about hibernationD. some bats hibernate and others do not

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考题 Scientists have many theories about how the universe ___ into being.A. cameB. was comingC. had comeD. would come

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考题共用题干第三篇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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考题共用题干第三篇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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考题共用题干第三篇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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考题共用题干第三篇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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考题共用题干 Natural MedicinesSince earliest days,humans have used some kinds of medicines.We know this because hu-mans have survived .Ancient treatments for injury and disease were successful enough to keep hu-mans from dying out completely.They were successful long before the time of modern medicine.Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.Many parts of the world still do not have university-educated doctors.Nor do they have ex- pensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient meth- ods. By medicines that might seem mysterious, even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.Through the centuries, tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Experts say almost 80%of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment.They are used be-cause people trust them.In developed areas,few people think about the source of the medicines they buy in a store.Yet many widely-used medicines are from ancient sources,especially plants. Some experts say more than 25%of modern medicines come,in one way or another,from nature.Scientists have long known that nature is really a chemical factory.All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly. The passage indicates that ancient treatments for injury and disease were_____.A: much more successful than modern onesB: successful enough for humans to surviveC: successful in all casesD: of little help to humans

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考题共用题干第三篇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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考题共用题干第三篇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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考题共用题干第三篇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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考题共用题干 Natural MedicinesSince earliest days,humans have used some kinds of medicines.We know this because hu-mans have survived .Ancient treatments for injury and disease were successful enough to keep hu-mans from dying out completely.They were successful long before the time of modern medicine.Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.Many parts of the world still do not have university-educated doctors.Nor do they have ex- pensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient meth- ods. By medicines that might seem mysterious, even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.Through the centuries, tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Experts say almost 80%of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment.They are used be-cause people trust them.In developed areas,few people think about the source of the medicines they buy in a store.Yet many widely-used medicines are from ancient sources,especially plants. Some experts say more than 25%of modern medicines come,in one way or another,from nature.Scientists have long known that nature is really a chemical factory.All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly. It is believed by scientists that traditional medicines______.A:cancureallkindsofdiseasesB: maycuresomeoftoday,smostseriousdiseasesC: arenolongerusefulformodernmenD: aretoocheaptoheuseful

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考题 Many scientists have been probing psychological problems.A:solving B:exploring C:seffling D:handling

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考题共用题干第二篇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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考题共用题干第二篇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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考题共用题干第二篇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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考题共用题干第一篇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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考题共用题干第一篇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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考题共用题干 Natural MedicinesSince earliest days,humans have used some kinds of medicines.We know this because humans have survived.Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient methods. By medicines that might seem mysterious , even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.Through the centuries , tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Experts say almost 80% of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas,few people think about the source of the medicines they buy in a store .Yet many widely-used medicines are from ancient sources,especially plants.Some experts say more than 25%of modem medicines come,in one way or another,from nature.Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly. It is believed by scientists that traditional medicines______.A: can cure all kinds of diseasesB: may cure some of today's most serious diseasesC: are no longer useful for modern menD: are too cheap to be useful

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考题共用题干 Natural MedicinesSince earliest days,humans have used some kinds of medicines.We know this because humans have survived.Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient methods. By medicines that might seem mysterious , even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.Through the centuries , tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Experts say almost 80% of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas,few people think about the source of the medicines they buy in a store .Yet many widely-used medicines are from ancient sources,especially plants.Some experts say more than 25%of modem medicines come,in one way or another,from nature.Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly. It can be seen from the passage that the earth's supply of natural medicines______.A: may never be exhaustedB: may be dropping rapidlyC: is surprisingly bigD: is as rich as ever

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考题 At least how many tests were carried out by the scientists referred to in this passage A.Three B.Two C.Only one D.No one knows

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考题问答题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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考题单选题Which of the following is NOT true about nursing before Nightingale came in this field?A Most nurses were not professionally trained.B People only had respect for the nurses from the upper classes.C Nurses did not pay enough attention to sanitation.D There were many donations flooding into the hospitals.

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考题单选题The concept of television, ______ images over distances, had intrigued scientists even before the invention of moving pictures or radio.A the transmission ofB transmitted byC transmission intoD the transmitting for

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考题单选题Many great scientists and inventors of the past, such as Nikola Tesla, has possessed the ability of extraordinary, visualization skills that enabled them to analyze the most minute details of complex machines before the devices were even constructed.A has possessed the ability of extraordinary visualization skillsB have been able to possess extraordinary visualization skillsC possessed skills in visualization that was extraordinaryD possessed extraordinary visualization skillsE possessed skills of visualizing that was extraordinary

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