Passage ThreeQuestions 18 to 20 are based on the passage you have just heard.

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• 1                                  Passage TwoQuestions 15 to 17 are based on the passage you have just heard.

  A.Watching traditional plays.

  B.Visiting the magnificent libraries.

  C.Boating on the river.

  D.Cycling in narrow streets.

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• 2Section B                                 Passage OneQuestions 11 to 14 are based on the passage you have just heard.

  A.Washing plates.

  B.Clearing tables.

  C.Shining shoes.

  D.Sweeping the floor.

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• 3The author uses the example of the robot in space exploration to tell us ________.

  A.the differences between robots and men

  B.the reason why men need to sleep

  C.about the need for robots to save power

  D.about the danger of men working at night

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• 4Evolution has programmed man to sleep at night chiefly to help him ________.

  A.maintain a regular pattern of life

  B.prevent trouble that comes looking for him

  C.avoid danger and inefficient labor

  D.restore his bodily functions

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• 5According to the author, we cannot sleep well when we ________.

  A.are worrying about our safety

  B.are overworked

  C.are in a tent

  D.are away from home

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• 6Cats sleep much more than horses do partly because cats ________.

  A.need more time for restoration

  B.are unlikely to be attackers

  C.are more active than horses when they are awake

  D.spend less time eating to get enough energy

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• 7Which of the following is the main idea of the passage、 ________.

  A.Evolution has equipped all creatures with a regular pattern of sleeping and waking.

  B.The study of sleep is an important part of the evolutionary theory.

  C.Sleeping patterns must be taken into consideration in the designing of robots.

  D.The sleeping pattern of a living creature is determined by the food it eats.

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