Do you often feel tired or hard to concentrate(集中精力) in class ? If your answers to this question is yes,
【小题1】
. .Not getting enough sleep can lead to many kinds of problems.
New studies show that not only Chinese students suffers from lack(不足) of sleep，American students also have the same problem .
【小题2】
Why are they so tired ? One big reason is the use of electronic products（电子产品）.
A recent survey finds out that 71% of American kids aged 8 to 18 have TVs in the rooms and about 36% have computers in their rooms.
【小题3】
, playing video games ,sending text messages to friends and watching TV before bedtime.
How to solve the problem ? Scientist advise “
【小题4】
. ”Spending more time on sleep can help students stay healthy
【小题5】
根据以上内容，从下列五个选项中选择适当的句子还原到短文中，使短文完整与正确。将其标号在答题卡上涂黑。（每小题2分，共10分）
| A．Some American primary school students are very tired and sometimes they even fall asleep in class. | | B．perhaps it means you need more sleep. | | C．It’s never too late to change bad sleep habits | | D．Many kids spend a lot of time surfuring the Internet , |
E. and do well at school.
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