Are you carrying too much on your back at school? I’m sure lots of children of your age will say “Yes”. Not only the students in China have this problem, but children in the United States also have heavy school bags.
Doctors are starting to worry about young students’ back and neck because their school bags are too heavy for them.
“It’s hard for me to go upstairs with my heavy bag,” said Rick Hammond, an ll-year-old student in the USA.
Rick is among students who have school bags with two straps(帶子),and many other students choose rolling(有滾輪的) bags.
But even with rolling bags ,getting upstairs is still a problem for children .Doctors say students should carry no more than 10% to 15% of their own body weight (重量)。
Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10% of their weight and older children shouldn’t stay with over 15% , because their bodies are still growing.
Teachers and parents should do some things to help children. And the best answer is to have less homework!
小題1:From the passage we cam know that        .
A．only children in China carry too heavy school bags.
B．children in other countries don’t carry too heavy bags.
C．both children in China and the USA carry too heavy school bags.
D．only children in the USA carry too heavy school bags.
小題2:Children feel it hard for them to go upstairs because          .
A．they are too young.
B．their school bags are too heavy.
C．they are too heavy.
D．their parents don’t always go upstairs with them.
小題3:If a child carries a heavy school bag,        .
A．his back and neck may be hurt.
B．his head and arms may be hurt .
C．his hands may be hurt .
D．his feet may be hurt .
小題4:According to the doctor, Scott Bautch, if a child in Grade 5 weighs about 30 kilos, the school bag he carries should not be over          .
A．5 kilosB．3 kilosC．5.5 kilosD．4.5 kilos
小題5:Some students think the best answer to this problem is that          .
A．they should have a little homework to do after they get home
B．their teachers had getter not ask them to do any homework
C．they should only take home the books they will read that night.
D．They should use thin books instead of thick ones.

小題1:C
小題2:B
小題3:A
小題4:D
小題5:A

試題分析：這篇短文主要描述了中美學(xué)生的書包都很重，這會對學(xué)生的身體造成不良影響。專家對此提出了建議，并號召老師和家長采取適當(dāng)?shù)拇胧?br />小題1:根據(jù)Not only the students in China have this problem, but children in the United States also have heavy school bags.可知中美學(xué)生的書包都很重，故選C。
小題2:根據(jù)“It’s hard for me to go upstairs with my heavy bag,” said Rick Hammond,可知選B。
小題3:根據(jù)Doctors are starting to worry about young students’ back and neck because their school bags are too heavy for them.可知對孩子的背部和頸部造成傷害，故選A。
小題4:根據(jù)Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10% of their weight and older children shouldn’t stay with over 15% ,計算可知30*15%=4.5，故選D。
小題5:根據(jù)And the best answer is to have less homework!聯(lián)系實際可知學(xué)生們當(dāng)然希望作業(yè)更少了，故選A。
點評：本文中長句較多，一時很難讀懂句子含義，注意多讀幾遍，不要強求非得理解一詞一句的含義，能把握文章大意就行。然后帶著問題閱讀短文，一般就能順利找出答題依據(jù)。對于有關(guān)數(shù)字的問題,要認真分析,并進行必要的計算.
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