Stage 4 sleep lasts ____.

试卷相关题目

• 1The stages of sleep take on ____.

  A.an irregular aspect.

  B.a regular aspect

  C.a punctual aspect

  D.a similar aspect

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• 2This passage tries to tell you how to ____.

  A.avoid mistakes about both money and people

  B.say things elegantly

  C.avoid mistakes in understanding what people tell you

  D.keep people friendly without trusting them

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• 3If you followed the advice of the writer, you would ____.

  A.weigh carefully what people say to determine their real meaning

  B.get along well with people

  C.trust what other people say

  D.have no doubts about our friends

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• 4In listening to a person, the important thing is ____.

  A.to notice his tone, his posture, and the look in his eye

  B.to listen to how he pronounces his words

  C.to check his words against his manner, his tone of voice, and his posture

  D.not to believe what he says

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• 5By saying “You're a lucky dog.”, the speaker ____.

  A.is just being friendly

  B.expresses the same meaning as “You're a lucky guy.” or“You ' re a lucky gal.”

  C.is humorous to apply the word “dog” to people

  D.has a hidden jealous feeling behind the words

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• 6The brain waves are the slowest during ____.

  A.stage 1

  B.stage 2 and stage 3

  C.stage 4

  D.REM sleep

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• 7In the second paragraph the word “dart” means ____.

  A.glare

  B.move rapidly or suddenly

  C.stop moving

  D.gaze

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• 8One of the features of REM sleep is that ____.

  A.there are large slow waves, though rapid for the first few minutes

  B.you have the deepest sleep

  C.there are no brain waves

  D.the brain waves are a little fast and the brain becomes a littleactive

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• 9Lens design and chess playing are similar in that ____.

  A.the final goal and the means by which it can be reached are known

  B.perfect solutions to a problem can be found

  C.any one decision at any point along the way to the goal can bringnumerous possible results

  D.both A and C

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• 10The final goal of designing a lens is ____.

  A.to trap the opponent's lenses

  B.to focus light with lenses

  C.to handmake lenses at low cost

  D.to reflect light by means of curved surfaces

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