After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time,the body recover

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问题     After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time,the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.
    There are four levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by, little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.
    Although your mind slows down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movement.
    If you have trouble falling asleep, some people recommend breathing very slowly and very deeply. Other people believed that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!
This passage suggests that not getting enough sleep might make you______.

选项 A、dream more often
B、have poor health
C、nervous
D、breathe quickly

答案B

解析 本题考查考生对细节的把握。答案在文章的第一段第二句话:Sleep is necessary for good health.“睡眠有利于身体健康。”本题是正话反说,即睡眠不足是有损健康的,A项文章中没有提及;C、D项凭经验判断貌似正确但与本句话内容没有联系,只有B最符合题意。
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