问题详情:
Are you carrying too much on your back at school? Lots of kids at the same age are as you are. Not only are students in China 21 from this problem, But kids in the United States are 22 fed up with heavy school bags. Experts are starting to 23 that more and more young students are having back and neck problems as a result of school bags 24 too heavy for them. “It’s hard for me to get up the 25 with my bag because it’s so heavy,” said Rich Hammond, 26 11-year-old student in the US. Rich is among the students who have 27 backpacks with two straps(带子) to carry them, 28 a number of other students choose rolling backpacks. But even with rolling backpacks, 29 up stairs and buses with them is 30 a problem for kids. Many of them have hurt their knees, backs or necks because of heavy school bags. But how much is too 31 ? Experts say students should carry 32 more than 10 to 15 percent of their own body weight. Scott Bautch, a Wisconsin 33 doctor, said kids under 4th grade should 34 with 10 percent. But it’s also important that older kids don’t go 35 15 percent, because their bones are still growing. Bautch explained that there are other injuries caused by backpacks. “Kids are 36 their balance and falling down with these backpacks,” he said. Parents and teachers are starting to tell the kids to only take 37 library books they will be reading that night. Some teachers are using worksheets or 38 workbooks for students to take home. One of the best answers is, as some 39 themselves suggested, to have no homework 40 ! 21.A. facing B. meeting C. suffering D. experiencing 22. A. also B. already C. yet D. always 23. A. explain B. say C. announce D. worry 24. A. be B. being C. are D. is 25. A. schools B. houses C. stairs D. homes 26. A. this B. an C. a D. that 27. A. common B. unusual C. special D. strange 28. A. when B. and C. then D. but 29.A. going B. climbing C. getting D. turning 30.A. still B. only C. even D. just 31.A. more B. very C. many D. much 32.A. too B. no C. any D. much 33.A. children B. student C. back D. bag 34.A. stay B. carry C. take D. bring 35.A. about B. under C. before D. beyond 36.A. keeping B. losing C. missing D. making 37.A. home B. class C. school D. city 38.A. valuable B. important C. thin D. interesting 39.A. kids B. teachers C. parents D. reports 40.A. for all B. after all C. in all D. at all
【回答】
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