题目：
According to a recent survey, British teenagers are not in good health because they don’t have enough time for sleep. They don’t sleep well, either. They are often disturbed(打扰) by electronic gadgets(器具，装置) in their bedrooms. We call such kind of sleep “junk sleep”.
We did a survey among 1,000 students aged 12 to 16, and we found out that 30 percent of them slept for only 4 to 7 hours a day. Nearly a quarter said they fell asleep while they were watching TV, listening to music or using other electronic gadgets.’
Nowadays, almost all the teenagers have a phone, music system or TV in his or her bedroom. Almost 20 percent of the teenager boys said the quality of their sleep were not good. It was affected by leaving their TVs or computers on. The survey also found out that 40 percent of young people felt tired every day. What’s more, the girls aged 15 to 16 felt the worst among them.
“Teenagers need to realize the importance of sleeping well. If they sleep well, they will be able to study hard and perform well at school. I am shocked to know that so few teenagers have noticed the close connection between sleep and schoolwork,” said Dr Chris.
小题1:What disturbs British teenager in their bedrooms?
A. Sleep. B. Electronic gadgets. C. Schoolwork.
小题2:According to the result of the survey, how long did 30 percent of students sleep a day?
A. 3 to 7 hours. B. 4 to 7 minutes. C. 4 to 7 hours.
小题3:The word “ quality” means “ ” in Chinese.
A. 数量 B. 质量 C. 时间
小题4:Among the students, felt the worst.
A. the girls aged 13. B. the girls aged 15. C. the girls aged 17.
小题5:What does the passage talk about ?
A. Junk food. B. Junk sleep. C. Teenagers.
答案：
小题1:B
小题2:C
小题3:B
小题4:B
小题5:B
题目分析：本文讲述了很多英国的青少年身体不健康，因为他们的睡眠不好，而他们房间的如手机、电视等电子装置会影响他们的睡眠，青少年应该注意这些问题，好的睡眠质量才能保证他们每天好的学习状态。
小题1:细节理解题。根据They are often disturbed by electronic gadgets in their bedrooms.他们经常被他们房间里的电子装置所打扰。故选B。
小题2:细节理解题。根据we found out that 30 percent of them slept for only 4 to 7 hours a day.我们发现30%的学生一天只睡3到7个小时。故选C。
小题3:细节理解题。根据Almost 20 percent of the teenager boys said the quality of their sleep were not good.大约20%的青少年男孩说他们的睡眠质量不好。由题意理解，应该是“质量”。故选B。
小题4:细节理解题。根据What’s more, the girls aged 15 to 16 felt the worst among them.而且，在他们之中，15、16岁的女孩感觉最糟糕。故选B。
小题5:细节理解题。根据We call such kind of sleep “junk sleep”我们可以叫这种睡眠叫“垃圾睡眠”。可知全文围绕不好的睡眠质量写的。故选B。
