In China , more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don't know how to save(节省) time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing puter games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to get to school on time by bus or by bike. It can be a long way from home to school.
Schools and parents should cut down some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of（很好地利用） our time. When we have enough time for sleeping, we will find it much better for both our study and health.
【小题1】What makes most students sleep less than nine hours every night?A．Watching TV. B．Playing puter games. C．Doing their homework.D．Doing housework.【小题2】Who else gives children some homework to do except their teachers?A．Their parents.B．Other students.C．The children themselves.D．Nobody else.【小题3】How many hours of sleep is good for students' health?A．Less than 9 hours.B．Over 9 hours.C．Only 9 hours. D．8 hours.【小题4】What would happen to a student who often goes to bed late and gets up early?A．He would fall asleep in class.B．He would do well in study.C．He would finish his homework fast.D．He would have good health.【小题5】Which of the following is NOT true?A．Some students are so careless that they spend lots of time on their homework.B．All the students stay up late for their homework.C．Children should be given less homework.D．Schools and parents should take care of childrenC
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(答案→)C
解析：这篇短文主要讲述了学生作业负担过重，以及部分学生不会很好利用时间，造成了睡眠不足，进而影响到孩子们的学习和健康。
【小题1】根据Most students sleep less than nine hours every night, because they have much homework to do.描述可知选C。
【小题2】根据Some homework is given by their teachers, and some by their parents.描述可知选A。
【小题3】根据so that our children can enjoy more than nine hours of sleep every night for their health.描述可知选B。
【小题4】根据When we have enough time for sleeping, we will find it much better for both our study and health.描述,推理可知选A，在课堂上睡着，影响自己的学习。
【小题5】根据They stay up (熬夜) very late.联系上文描述，可知这是指的部分学生，故选项B与原文描述不符。