题目内容
17．
Sleep is very important．A person who does not sleep dies faster than a person who does not eat．We spend about a third（1/3）of our lives in sleep．That's about 121 days a year!How much sleep do we need？We are all different．A baby needs 16 hours of sleep every day．Children 6 to 12 years old need an average（平均） of 10 to 12 hours of sleep．Teenagers need 9 to 10 hours of sleep．An adult needs an average of 7 to 8hours a night．There are some people who need only 3 hours of sleep．Others need 10 hours of sleep．After the age of 50，the average sleep time goes down to 6.5 hours a night．We need less sleep as we get older．
About one in three Americans has a problem with sleep．Many of these people can not fall asleep．The name of this problem is insomnia．Some people say，"I didn't sleep all night．"But that's not really true．They may sleep lightly and wake up several times．In the morning，they only remember the times they were awake（醒着），so they think they were awake all night．
This is not a new problem．Many famous people in history had insomnia．Some of these people had special ideas to make them sleep．Benjamin Franklin had four beds．He moved from one to the other to fall asleep．Mark Twain had a different way．He lay on his side across the end of the bed!
77．If you are thirteen years old，you need at leastC hours of sleep．
A.16
B.12
C.9
D.7
78．What does"insomnia"mean in this passageA？
A．No sleep．
B．Bad sleep．
C．Slow sleep．
D．Sleep with many dreams．
79．Which of the following is true according to the passageB？
A．We will die soon if we don't sleep well．
B．The older we get，the less sleep we need．
C．We can tell a person's age from his sleep time．
D．Famous people move from one bed to the other to fall asleep．
80．Which would be the best title for this passageB？
A．Sleep More!
B．Go to Sleep!
C．Age and Sleep Time
D．Famous People and Sleep．
分析 睡眠很重要，我们一生有三分之一的时间是在睡觉，一年大约121天，每个人所需求的睡眠时间不同，美国有些人失眠，他们说睡不着，实际上可能是睡觉轻，醒来很多次，历史上很多名人用一些特别的办法解决失眠．
解答 77．C．细节题，结合第二段Teenagers need 9 to 10 hours of sleep．青少年至少需要9小时睡眠时间，十三岁是青少年，故选C．
78．A．词意猜测题．结合Many of these people can not fall asleep．The name of this problem is insomnia可知人们睡不着，叫做insomnia失眠，故选A．
79．B．细节题，结合第一段We need less sleep as we get older．可知是年龄越大睡眠时间越少，故选B．
80．B．标题判断题，结合Sleep is very important可知本文是说睡眠的重要性，要保证睡眠时间，要去睡觉．故选B．
点评 本文浅显易懂，各个小题都能在文中找到适当依据．只要认真阅读短文，注意前后联系，就能顺利完成阅读．文章所设试题主要考察细节查找，做题关键是找出原文的根据，认真核查小题和原文的异同．
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5．A new study suggests that the more teenagers watch television，the more likely they are to develop depression （抑郁症） as young adults．
The researchers used a national long-term survey of healthy young teenagers of about 13-16to find out the relationship between media（媒体） use and depression．They based their findings on more than 4000young teenagers who were not depressed when the survey began in 1995．
As part of the survey，the young people were asked how many hours of television or videos they watched daily．They were also asked how often they played computer games and listened to the radio．Here was the result．The young people spent five and a half hours a day using media and more than 2hours of that was spent watching TV．
Seven years later，in 2001，more than 7% of the young people had signs of depression．The average age at that time was 21．Brian Primack at the University of Pittsburgh medical school was the lead author of the new study．He says every extra hour of television meant an 8% increase in the chances of developing signs of depression．
The researchers say they did not find any such relationship with the use of other media such as movies，video games or radio．But the study did find that young men were more likely than young women to develop depression given the same amount of media use．
Doctor Primack says the study did not find out if watching TV causes depression directly．But one possibility，he says，is that it may take time away from activities that could help prevent depression，like sports and social activities．It might also prevent a person from sleeping well，he says，and that could have an influence．
The study was just published in the Archives of General Psychiatry．
In December，the journal Social Indicators Research published a study of activities that help lead to happy lives．Researchers from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people．The study found that happy people are more likely to be socially active，to read，attend social services and to vote．
The researchers used a national long-term survey of healthy young teenagers of about 13-16to find out the relationship between media（媒体） use and depression．They based their findings on more than 4000young teenagers who were not depressed when the survey began in 1995．
As part of the survey，the young people were asked how many hours of television or videos they watched daily．They were also asked how often they played computer games and listened to the radio．Here was the result．The young people spent five and a half hours a day using media and more than 2hours of that was spent watching TV．
Seven years later，in 2001，more than 7% of the young people had signs of depression．The average age at that time was 21．Brian Primack at the University of Pittsburgh medical school was the lead author of the new study．He says every extra hour of television meant an 8% increase in the chances of developing signs of depression．
The researchers say they did not find any such relationship with the use of other media such as movies，video games or radio．But the study did find that young men were more likely than young women to develop depression given the same amount of media use．
Doctor Primack says the study did not find out if watching TV causes depression directly．But one possibility，he says，is that it may take time away from activities that could help prevent depression，like sports and social activities．It might also prevent a person from sleeping well，he says，and that could have an influence．
The study was just published in the Archives of General Psychiatry．
In December，the journal Social Indicators Research published a study of activities that help lead to happy lives．Researchers from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people．The study found that happy people are more likely to be socially active，to read，attend social services and to vote．
| Process of the study | Details |
| The purpose of the research | To find out （96）relationshipbetween media use and depression |
| At the beginning of the research | （97）Asurveywas made among over 4000young people who were not depressed． |
| The result of the survey | These young people spent five and a half hours a day in using media and they spent over 2hours or that（98）watchingTV |
| Seven years later | Researchers found 7% of the young people had a sign of depression．Every extra hour of watching TV meant an 8% increase in the chances of developing signs of depression． |
| Results of the study | 1．Watching TV might have（99）helppreventdepressionand it may take time away from activities and sports． 2．Young men get more chance than young women to develop depression． 3．The reason some people get depression is that （100）theyspendmoretimewatchingtelevision |
6．
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