閱讀理解：
After a day of work and play, the body needs to rest. Enough 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 another.
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 that you breathe very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will help you fall asleep!
問題：
1.A good title for this passage is .
A.SleepB.Good HealthC.DreamsD.Work and Rest
【參考答案】A
[考點]主旨大意題
【精析】A 第一段講述了充足睡眠的好處及作用，接著概述了睡眠的四個等級以及做夢時眼睛的一些動作;最后一段提供了一些有助于睡眠的方法。整篇文章都與睡眠有關(guān)，因此，文章的題目應(yīng)是“Sleep”。故選A。
2. The word “drowsy” in the last paragraph means .
A.sick
B.awake
C.excited
D.sleepy
【參考答案】D
[考點]詞語理解題
【精析】D 最后一段講述的是有助于睡眠的方法。根據(jù)最后一段最后一句“…will help you fall asleep!”可推知，drowsy是fall asleep的近義詞。sick：生病的，病態(tài)的;awake：醒著的;excited：興奮的;sleepy：困倦的，昏昏欲睡的。根據(jù)最后一段第二句“其他人認為喝熱牛奶將有助于使你困倦”可知，選D。
3. This passage suggests that not getting enough sleep might cause you to .
A.dream much often
B.have poor health
C.feel too nervous
D.breathe very deeply
【參考答案】B
[考點]推理判斷題
【精析】B 根據(jù)第一段第二句“Enough sleep is necessary for good health.”可知，充足的睡眠對健康很有必要。由此可推知，睡眠不足可能會導(dǎo)致身體狀況變糟糕。故選B。文章并未提及A、C兩項，D項是有助于睡眠的方法。
4. According to the passage, during REM, .
A.your eyeballs move quicklyB.you dreamC.you are restlessD.both A and B
【參考答案】D
[考點]事實細節(jié)題
【精析】D 根據(jù)第三段第二、三句“…when dreaming occurs, your eyeballs begin to move more quickly…This stage of sleep is called REM…”可知，當(dāng)人們做夢時，眼球開始快速轉(zhuǎn)動，這個過程叫作REM，所以選項A、B都正確。故選D。
5.The average number of hours of sleep that an adult needs is .
A.approximately six hours
B.around ten hours
C.about eight hours
D.not stated in the passage
【參考答案】D
[考點]推理判斷題
【精析】D 第一段講述了充足睡眠的好處，第二段概述了睡眠的四個等級，第三段講述了做夢時眼睛的一些動作，最后一段給出了一些有助于睡眠的方法。但是文章并沒有說明成年人所需的平均睡眠時間。故選D。