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A ______ of birds flew towards us slowly from far away.

A.herd

B.flock

C.pack

D.school


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考题 Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it? Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard(果园)and the very trees where?they nested the summer before. It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly. Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north. We are sorry to see them go,but we know that when winter is over they will come back to us. In which season do we have most birds to stay with us?A.In spring. B.In summer. C.In winter. D.We don't know.

考题 Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it? Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard(果园)and the very trees where?they nested the summer before. It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly. Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north. We are sorry to see them go,but we know that when winter is over they will come back to us. How far do birds usually travel from their summer homes to their winter ones?A.About hundreds of miles. B.About thousands of miles. C.The distance that takes a bird to fly the whole morning. D.The passage does not tell us.

考题 Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it? Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard(果园)and the very trees where?they nested the summer before. It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly. Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north. We are sorry to see them go,but we know that when winter is over they will come back to us. The underlined part"stray from the path"means__________.A.lose its way B.stay on the path C.keep away from the path D.fly along the path

考题 Very few of our birds stay with us the year round.Some come to us in the winter from the cold?north.Others come from the south to spend the summer with us.How do they know the way?Suppose?you were told to find your way to a place hundreds of miles away,do you think you could do it? Yet birds travel over mountains,forests,lakes and even across the oceans,and do not stray from?the path.They find their way back in the spring to the same orchard(果园)and the very trees where?they nested the summer before. It is wonderful how quickly birds travel such long distances from their summer homes to their?winter ones.Some birds have been known to fly hundreds of miles in a day.But others travel much?more slowly. Why do birds undertake these long journeys twice a year?Perhaps cold weather and lack of?food drive them from us in the autumn,but we cannot tell why they leave the sunny south to come?back to us in the spring.We know only that many of them like to make their nests and rear their?young in the north. We are sorry to see them go,but we know that when winter is over they will come back to us. Why do birds undertake those long journeys twice a year?A.It is because of cold weather in winter. B.It is because of lack of food in autumn. C.It is because of the hot weather in summer. D.There's some reason that is still not known clearly.

考题 When does the next bus leave for Glasgow? ()AI‘ve never been there.BThe next one is faster.CThey leave every hour.DThe city is far away.

考题 Our plane()from London at 7:00 yesterday evening.A、took offB、put offC、flew offD、left off

考题 单选题Some paleontologists claim that the discovery of what appear to be feathers in the fossil of an Archosaur could force a revision of current theories on the phylogeny of Archosaurs, alter conceptions of dinosaur skin surfaces, and require scholars to credit birds with a far earlier orion than previously thought.A require scholars to credit birds with a far earlier origin than previously thoughtB scholars may be required to credit birds with a far earlier origin than previously thoughtC require a crediting by scholars of birds with a far earlier origin than previously thoughtD compared to what was previously thought, require scholars to credit birds with a far earlier originE crediting birds with a far earlier origin than scholars had previously though

考题 单选题Paleontologists hypothesize that modern birds evolved from the family of dinosaurs that included Tyrannosaurus rex. This hypothesis would be strongly supported if evidence that dinosaurs from this family had a body covering resembling feathers could be found, but so far no such evidence has been found.  Which of the following, if true, would most help the paleontologists explain why no evidence of feathered dinosaurs has yet been found?A Fossilized dinosaurs have shown many birdlike characteristics, such as bone structure and winglike arms.B If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out.C Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers.D Soft tissues such as skin and feathers do not fossilize like bones, and therefore are far less likely to have left permanent evidence in the fossil record.E The thousands of dinosaur fossils excavated by paleontologists represent only a tiny fraction of the billions of dinosaurs that once lived.

考题 单选题As the plane flew off towards the mountains in the distance the sound of its engines gradually ______.A died awayB sank down C dropped offD went out

考题 问答题An aircraft flew from A to B at an average speed of 230 mph. It returned from B to A at an average speed of 300 mph. What was its average speed for the two journeys?

考题 填空题The youngster immediately fell ____(silence) as tears flew down from his big blue eyes.

考题 单选题What happened to one of the four birds?A It was dead on the way to London.B It flew away from the cage.C It was stolen by someone.

考题 单选题When does the next bus leave for Glasgow? ()A I‘ve never been there.B The next one is faster.C They leave every hour.D The city is far away.

考题 判断题c)It took the great president of the US a lot of time to study birds.A 对B 错