Do you often feel tired or hard to concentrate(集中精力) in class ? If your answers to this qu

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.
B

(答案→)B 解析：【小题1】后句的含义为没有足够的睡眠会产生许多问题，所以本句的含义为或许它表示的含义为你需要更多的睡眠，故本句空格处选B。【小题2】前句的含义为美国学生同样有缺少睡眠的问题，所以本句的含义为美国初级学校的学生非常困，有时候在课堂上睡着了，故本句空格处选A。【小题3】前句提到有百分之36的学生在房间里有电脑，所以本句的含义为许多孩子在电脑上花费许多的时间，故本句空格处选D。【小题4】后句的含义为花费更多的时间睡眠有助于学生保持健康，所以本句的含义为改变睡眠的坏习惯从来就不晚，故本句空格处选C。【小题5】前句说花费更多的时间睡眠，那么本句的含义应该为在学校能够做得好，故本句空格处选E。

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