We all know that it is possible for ordinary people to make their homes on the equator (赤道), although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole (北极) we know that it is not only a dangerously cold place, bu

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• 1 The polar region is__________

  A. a good place to land at by aeroplane

  B. a good place to fly over

  C. a good place to fly past

  D. a good place to live in

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• 2 It is a delight to fly at the Pole because there__________

  A. planes fly higher than at the equator

  B. the eyes can reach about 4,000 meters

  C. planes are clear of bad weather

  D. planes fly more quickly than at the equator

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• 3 Aeroplanes can climb quickly__________

  A. in warm air

  B. in cold air

  C. when it reaches the polar region

  D. only when the clouds are down low

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• 4 Aeroplanes usually do not need to climb quickly or fly high in the polar region because__________

  A. they do not land there

  B. there are no clouds at all

  C. they can cross the ice with special equipment

  D. it is very cold

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• 5Trees are useful to man in three important ways: they provide him with wood and other prod-ucts; the

  A. They help him make money.

  B. They give him wood and other products.

  C. They help him prevent droughts and floods.

  D. They give him shade.

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• 6 Why do forests in many parts of the world slowly disappear?

  A. New trees are not looked after properly.

  B. Many trees have been cut down by man.

  C. Man has not paid enough attention to planting trees.

  D. All of the above.

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• 7 Why did the country mentioned in the passage suffer from floods and starvation?

  A. Because an empire was set up.

  B. Because the empire fell to pieces.

  C. Because it lost its trees.

  D. Because too much had been spent on wars.

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• 8Not all memories are sweet. Some. people spend all their lives trying to forget bad experi-ences. Vi

  A. a new medical invention

  B. a new research on memories

  C. a way of erasing painful memories

  D. an argument about the research on the pill

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• 9 The drug tested on people can__________.

  A. cause the brain to fix memories

  B. stop people remembering their experiences

  C. prevent body producing certain chemicals

  D. wipe out the emotional effects of memories

        

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• 10 We can infer from the passage that__________.

  A. people doubt the effects of the pills

  B. the pill will stop people' s bad experiences

  C. taking the pill will do harm to people' s health

  D. the pill has probably been produced in America

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