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

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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 deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion the counting sheep will put you to sleep!
The underlined word "drowsy" in the last paragraph means________.

选项 A、sick
B、asleep
C、stand up
D、a little sleepy

答案D

解析 词义猜测题。根据最后一段的内容可知,当难以入睡时有三种方式:深呼吸、喝热牛奶和数羊,喝热牛奶会让人昏昏欲睡。sick意为“生病”;asleep意为“睡着的”;stand up意为“站起来”a little sleepy意为“有一些困意”。故选D。
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