In China , more and more middle school studen

In China , more and more middle school studen

答案:【答案】

1. C

2. A

3. B

4. A

5.B

【解析】

1.细节理解题，根据文中语句“Most students sleep less than nine hours every night, because theyhave much homework to do.”理解可知。学生睡眠不足的主要原因是太多的家庭作业，故选C。

2.细节理解题，根据文中语句“Some homework is given by their teachers, and some by theirparents.”理解可知。学生的家庭作业不仅是老师布置，还有家长，故选A。

3.细节理解题，根据文中语句“our children can enjoy more than nine hours of sleep every nightfor their health”理解可知。学生每天需要9小时的睡眠，故选B

4.理解归纳题，根据文中语句理解可知，学生睡眠不足时，常做课堂上睡觉故选A。。

5.理解判断题，根据文中语句“Some students spend too much time watching TV or playing computergames. They stay up (熬夜) very late..”理解可知并不是所有的学生熬夜都是为了学习，故选B。

我也是这个答案