2. 外语
  3. 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

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

admin2012-09-11  40
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!
The word "drowsy" in the last paragraph means______.
选项 A、sick
B、stand up
C、asleep
D、a little sleepy
答案D
解析 本题是词义题，考查考生根据上下文对具体词语的理解。因为上一句的意思是：“如果你睡觉有困难的话，有人建议慢慢深呼吸。”紧接着作者说：“另外一些人认为喝热牛奶能使你……”，根据上下文应该选“瞌睡的”，sick有病的；stand up起立；asleep睡着的；a little sleepy想睡觉。因此只有D最符合题意。
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