【題目】 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 moves 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 say 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!

【1】A good title for this passage is ____.

A.SleepB.Dreams

C.Good HealthD.Work and Rest

【2】The word drowsy in the last paragraph means ____.

A.sickB.a little sleepy

C.stand upD.lie down

【3】During REM, ____.

A.you are restlessB.you never dream

C.your eyes move quicklyD.your eyes are moving fast before dreaming

【4】The average number of hours of sleep that an adult needs is ______ .

A.about six hoursB.around ten hours

C.about eight hoursD.not described here

【答案】

【1】A

【2】B

【3】C

【4】D

【解析】

這是一篇說(shuō)明文。文章主要介紹了睡眠的一些知識(shí)，睡眠的幾個(gè)階段，睡眠的重要性，缺乏睡眠的危害。

【1】主旨大意題。根據(jù)第一段中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.睡眠對(duì)健康是必要的。在這段時(shí)間里，身體會(huì)從前一天的活動(dòng)中恢復(fù)過(guò)來(lái)。睡覺(jué)時(shí)得到的休息能讓你的身體為第二天做好準(zhǔn)備�？芍饕v的是有關(guān)睡眠的作用。故選A項(xiàng)。

【2】詞義猜測(cè)題。根據(jù)倒數(shù)第二段中If you have trouble falling asleep, some people recommend breathing very deeply.如果你很難入睡，有些人建議你深呼吸。喝牛奶其實(shí)是為了讓自己有睡意，可知，這個(gè)單詞是“困的，昏昏欲睡的”的意思。故選B項(xiàng)。

【3】細(xì)節(jié)理解題。根據(jù)第三段中when dreaming occurs, your eyeballs begin to move more quickly. This stage of sleep is called REM, which stands for rapid eye movement.當(dāng)發(fā)生做夢(mèng)時(shí)，你的眼球開(kāi)始移動(dòng)得更快(盡管你的眼皮是閉著的)。可知，在所謂的REM階段，人是處于夢(mèng)境中，而且眼球會(huì)快速轉(zhuǎn)動(dòng)。故選C項(xiàng)。

【4】細(xì)節(jié)理解題�？v觀全文，文章并沒(méi)有提到各個(gè)年齡階段的人們的最佳睡眠時(shí)間，不能根據(jù)人們的常識(shí)來(lái)選擇選項(xiàng)C“八個(gè)鐘頭左右”，要以文章為依據(jù)做出選擇。故選D項(xiàng)。

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