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

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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. 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 believe 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 本题属于常识性概念。首先判断最有道理的选项,然后找到其依据句,就可以确认答案。本题的依据句是文章的第二句话“Sleep is necessary for good health.”。其他选择项根据常识判断不一定成立。
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