题目内容
2．We spend a quarter of our lives asleep．Sleep is necessary for the body to rest，yet our brains continue to process information．Studies have shown that students are more successful when they sleep after studying-instead of pulling all-nighters-because the brain reviews information learned．Similarly，dreaming is an opportunity to work out emotional problems and form thoughts and memories．About 25 percent of the time spent sleeping is spent in rapid eye movement，or REM，sleep．This type of sleep is known for when dreams occur，but it also helps energize the brain and body．Researchers have found two important factors regarding humans and sleep：basicsleep need and sleep debt．Basic sleep need is the amount of sleep we need to have regularly to perform at our best．Sleep debt is the loss of sleep．A few studies say that most adults function best with a basic sleep need of seven to eight hours a night．The problem is that sleep debt also factors in，just because that you meet your basic sleep needs a few nights of the week doesn't mean it cancels out the eff6ects of one night's sleep debt．
Of course，everyone is different and some people require more or less sleep than the standard basic sleep need．But the real problem lies in what lack of sleep does over the long period to people who either does not meet his or her body's needs or for one reason or another doesn't get enough regular sleep．It is more possible for these people to have motor vehicle accidents，weight gain and risk for heart disease or diabetes （糖尿病） and may be at increased risk for psychological conditions such as depression or drug abuse．Sleeping too long also can be associated with depression and poor health．
33．Most peoplespent aroundCof the sleeping time in REM sleep？
A．One third of the time
B．More than half of the time
C．One fourth of the time
D．More than 5 hours every day
34．Which of the following is NOT the result for lack of sleep according to the passage？D
A．Car accidents．
B．Putting on weight．
C．Heart problems．
D．Review learning things．
35．The best title for the passage isA．
A．Why We Need Sleep
B．REMSleep and Basic Sleep
C．Sleep Causes Problems
D．How Much Sleep We Need
36．Which statement is TRUE according to the passage？B
A．Students will forget what they have learned if they go to sleep immediately after study．
B．People may have an idea on how to solve an emotional problem if they have a dream．
C．It's all right to have a night of sleep debt if you fulfill several days of basic sleep need．
D．Sleeping as long as you can is considered to be good for your health and performance．
分析 本文主要讲述了睡眠尤其是充足的睡眠对人们的重要性，同时也提出了缺少睡眠可能会引起的一些问题．
解答 33．C 细节题．根据文章内容，About 25 percent of the time spent sleeping is spent in rapid eye movement，or REM，sleep．人们睡眠的百分之25是快速眼动睡眠．即1\4的时间是这样的，结合选项，故选C
34．D 细节题．根据文章内容，It is more possible for these people to have motor vehicle accidents，weight gain and risk for heart disease or diabetes （糖尿病） and may be at increased risk for psychological conditions such as depression or drug abuse．缺少睡眠的人很容易会出交通事故、出现肥胖问题而且心脏会容易出问题．糖尿病、抑郁等也是缺少睡眠的可能后果，没有提到D选项的内容，故选D
35．A 主旨题．根据文章内容，主要讲述了睡眠尤其是充足的睡眠对人们的重要性，同时也提出了缺少睡眠可能会引起的一些问题．结合选项，故选A
36．B 细节题．根据文章内容，Similarly，dreaming is an opportunity to work out emotional problems and form thoughts and memories．同样地，梦境是一个解决情绪问题或者形新的想法和回忆的大好机会．换句话说，人们有可能在梦境里找到解决某些问题的方法，结合选项，故选B
点评 本文是一个科教类阅读，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
