阅读理解.
Experts (专家) say that students usually need eight to ten hours' sleep at night, but more Chinese
students do not get enough sleep. Some Chinese parents are usually glad to see their children studying
late. They will think their children work very hard.  But not all parents are happy about this. Once a
mother told us that every morning her 10-year-old boy put up one finger with his eyes still closed;
begging (祈求) for one more minute to sleep. Like thousands of students "early birds" in China, he has
to get up before six every morning.
A report shows that a good night's sleep, students seem to be weaker than they should be. Many
students have fallen asleep during class at one time or another. Too much homework is not the only
reason why students stay up late .  Some watch TV or play the computer games late into the night.
Experts have ever said that students should develop good study habits. So some clever students
never study late, they are able to work'well in class.
1. The l0-year-old boy begged for one more minute to sleep because _____.
A. he didn't have enough sleep
B. it wasn't time for him to get up
C. he didn't want to go to school
D. he wanted his mother to wake him up
2. In this passage "early birds" means persons who_____.
A. get up early
B. get up late
C. sleep less
D. don't want to sleep
3. From the passage we know if students don't get enough sleep, they may _____.
A. become too weak to sleep
B. not work well in class
C. go to bed early
D. be weak in English
4. "Stay up late" here means _____.
A. study late
B. watch TV late
C. not go to bed until late
D. stay outside
5. According to the passage, which of the following is right?
A. If you want to study better, you must work hard.
B. Sleeping less means working hard.
C. Some clever students can work well in class because they have good study habits.
D. Students don't have enough sleep only because they have a lot of homework to do.

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