Question

9．Up to 65% of children don't get as much sleep as they should do，and this can make them nervous and slower at school，scientists say．
So how long should young people sleep each night？The answer is between eight and ten hours．If you don't get enough sleep at night，you'll have less energy the next day．
But the scientists say many children have missed out on 4，500 hours of sleep by the time they are seven years old．They say that children miss sleep because they have TVs and computers in their rooms，and busy parents don't read to their younger children at night any more．The traditional"bedtime story"helps children to relax and fall asleep peacefully．Children with TVs and computers in their bedrooms were more likely to sleep badly，and to get less than eight hours'sleep．Even losing one hour's sleep a night can mean that children do less well at school．
German scientists think that your brain （大脑） keeps working while you are asleep．To show that they were right，they gave two groups of people a problem to work out．One group went to sleep，and the other group stayed awake．The result？The people who slept worked out the answer more quickly．
This showed that their brains had been trying to find the answer while the people were asleep．So，make sure you get enough sleep tonight，and you'll be at your best tonight，and you'll be at your best tomorrow!
56．What problem do more than a half of students have？C
A．They don't get on well with their studies．
B．They don't follow their school rules
C．They don't have enough sleep at night．
57．If you have less energy the next day，you'll probably feelBat school．
A．lazy and crazy
B．slow and nervous
C．alone and angry
58．According to the third paragraph，what has worst influenced many children's sleep？B
A．Bedtime stories．
B．TVs and computers
C．Too much homework
59．The German scientists'experiment showed thatA．
A．our brains work while we sleep
B．our study depends on our sleep
C．our sleep helps improve our health
60．This passage in mainly written forC．
A．scientists
B．parents
C．young students．

Answer 1

分析 文章大意：
本文主要讲述的是学生睡眠和学校表现之间的关系．现在，65%的学生在晚上会玩电脑、看电视，以至于没有得到足够的睡眠时间，第二天在学校就会出现紧张，反应慢的问题．同时，科学家还发现，即使是睡觉的时候，大脑还是在工作的．由此，科学家告诫孩子们，一定要保证充足的睡眠．

解答 56．C，推理判断题，文中提到"Up to 65% of children don't get as much sleep as they should do"65%的学生睡眠不足，由此确定选择C．
57．B，推理判断题，文中提到"this can make them nervous and slower at school"如果睡眠不足，你就会没有精神，表现出来就是紧张，并且反应比较慢，由此确定选择B
58．B，推理判断题，文中提到"They say that children miss sleep because they have TVs and computers in their rooms"影响孩子们睡眠的一个重要原因就是房子里的电视和电脑，由此确定选择B．
59．A，推理判断题，文中提到"German scientists think that your brain （大脑） keeps working while you are asleep"德国科学家说在睡觉时大脑还在工作，后面讲述了验证这一理论的实验，由此判断选择A．
60．C，推理判断题，文中最后一句话提到"So，make sure you get enough sleep tonight，and you'll be at your best tonight，and you'll be at your best tomorrow!"所以，你要好好睡觉，这样的话你才能在第二天表现出色，由此确定选择C．

点评 对于阅读表达题，一定要记得首先通读全文，了解文章大意，然后再根据文章关键词，关键句，掌握细节问题，并进行推理判断，再去回答具体的问题．