Do you often feel tired or hard to concentrate(集中精力) in class ? If your answers to this question  is yes,      小題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 .   小題2:    Why are they so tired ? One big reason is the use of electronic products（電子產(chǎn)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.   小題3:    , playing video games ,sending text messages to friends and watching TV before bedtime.
How to solve the problem ? Scientist advise “  小題4:   . ”Spending more time on sleep can help students stay healthy     小題5:  
根據(jù)以上內(nèi)容，從下列五個(gè)選項(xiàng)中選擇適當(dāng)?shù)木渥舆�原到短文中，使短文完整與正確。將其標(biāo)號(hào)在答題卡上涂黑。（每小題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.
 

小題1:B
小題2:A
小題3:D
小題4:C
小題5:E

小題1:后句的含義為沒(méi)有足夠的睡眠會(huì)產(chǎn)生許多問(wèn)題，所以本句的含義為或許它表示的含義為你需要更多的睡眠，故本句空格處選B。
小題2:前句的含義為美國(guó)學(xué)生同樣有缺少睡眠的問(wèn)題，所以本句的含義為美國(guó)初級(jí)學(xué)校的學(xué)生非常困，有時(shí)候在課堂上睡著了，故本句空格處選A。
小題3:前句提到有百分之36的學(xué)生在房間里有電腦，所以本句的含義為許多孩子在電腦上花費(fèi)許多的時(shí)間，故本句空格處選D。
小題4:后句的含義為花費(fèi)更多的時(shí)間睡眠有助于學(xué)生保持健康，所以本句的含義為改變睡眠的壞習(xí)慣從來(lái)就不晚，故本句空格處選C。
小題5:前句說(shuō)花費(fèi)更多的時(shí)間睡眠，那么本句的含義應(yīng)該為在學(xué)校能夠做得好，故本句空格處選E。
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