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第九篇

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发布时间： 2016-08-25

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1共用题干单选题 3分

Theauthormentionspick-me-uptoindicatethat

  • A. melatonin levels need to be raised.
  • B. neurohormone can wake us up.
  • C. coffee is a stimulant.
  • D. decaf is a caffeinated coffee. 
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正确答案： -

本题解析： 暂无解析

2共用题干单选题 3分

Whichofthefollowingtellsushowcaffeineaffectssleep?

  • A. Caffeine blocks production of the enzyme that stops melatonin production.
  • B. Caffeine interrupts the flow of the hormone that prevents people from sleeping.
  • C. Caffeine halves the body’s levels of sleep hormone.
  • D. Caffeine stays in the body for many hours.
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正确答案： -

本题解析： 暂无解析

3共用题干单选题 3分

Whatdoesparagraph3mainlydiscuss?

  • A. Different effects of caffeinated coffee and decaf on sleep.
  • B. Different findings of Lotan Shilo and a team about caffeine.
  • C. The fact that the subjects slept 415 minutes per night after drinking decaf.
  • D. The proof that the subjects took half an hour to fall asleep.
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本题解析： 暂无解析

4共用题干单选题 3分

Whatdoestheexperimentmentionedinparagraph4prove?

  • A. There are more enzymes in decaf drinkers’ urine sample.
  • B. There are more melatonin concentrations in caffeine drinkers’ urine sample.
  • C. Decaf drinkers produce less melatonin.
  • D. Caffeine drinkers produce less sleep hormone.
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本题解析： 暂无解析

5共用题干单选题 3分

Theauthorofthispassageprobablyagreesthat

  • A. coffee lovers sleep less than those who do not drink coffee.
  • B. we should not drink coffee after supper.
  • C. people sleep more soundly at midnight than at 3 am.
  • D. if we feel sleepy at night, we should go to bed immediately.
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本题解析： 暂无解析

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