1、2013 中考英語復(fù)習(xí)精品資料超值閱讀練習(xí) 42Are you carrying too much on your back at school? You re not alone. Back experts in the UnitedStates are worried that young students are having back and neck problems as a result of carry ing toomuch in their backpacks （schoolbags）.“ It hurts myback whenl run, ” said Oberlin

2、Reyes, a student in Virginia. “It s hard to get upthe stairswith my backpack, because it s too heavy. ”O(jiān)berl in is among stude nts whose backpacks were weighed for a week in a recent study.They had regular backpacks with two straps （帶子）to carry them, but a nu mberof stude nts with heavy loads had sw

3、itched to roll ing backpacks（which have wheels and can roll on thegro un d）.Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpackbecause she was start ing to have back pain.How much is too much? Experts say students should carry no more than 10 to 15 perce nt of t

4、heirown body weight.A few stude nts had one suggesti on to lighte n the load: less homework.P.S.（ 附）Doctor s suggestion:1Lighten the load. Clean out binders （活頁材料）and take home only the booksyou n eed that ni ght.2Wide straps are better. They send out the weight over your shoulders moreevenly （均勻）.

5、And be sure to wear both straps rather than hanging the pack over one shoulder.3Pack smart. The heavier things should be packed closed to the back.4Bend both knees when you pick up the pack, and don t just bend over at the waist （腰）.1. “_” is the main idea of the text.A. The problem of backpacks is

6、worth study ingB. The problem made by heavy backpacksC. What is the best backpack for a stude ntD. How t o make students backpacks ligh t2. Accord ing to En derl in Reyes and Shirley Park, we know_.A. stude nts have to do too much homeworkB. backpacks have to carry heavy backpacksC. backpacks withou

7、t wheels are bad for stude ntsD. too much homework leaves stude nts no free time3. The expressi . on “switched to ” in the text perhaps means_.A. started to use B. turned to C. caught up D. used for4. According to the passage, it s better for a student of 40 kilograms toa backpack of_ at most by the

8、 words of experts.A. 10 kg B. 8 kg C. 6 kg D. 7 kg5. If studen-ts follow the doctor s sugge stions they_.A. may lighte n their backpacksB. can lear n how to help themselvesC. may feel their backpacks are lighterD. will know how to wear backpackscarry【答案與解析】這篇短文反映了學(xué)生書包過重這一引發(fā)人們思考的生活現(xiàn)實。書包過重引起 了學(xué)生身體的不適。文中引用了幾位學(xué)生對沉重書包的感想和體會，有的學(xué)生甚至還在書包上安裝了輪子。專家認(rèn)為書包重量不應(yīng)超過學(xué)生體重的10%-15%學(xué)生則認(rèn)為減少作業(yè)量才能徹底解決這一問題。為了減小過重書包對學(xué)生身體造成的傷害，短文最后還附了醫(yī)生的四點建議。1. D。根據(jù)首段末句及所附醫(yī)生的建議可知選項D 乃是文章主旨。2. A。短文前兩句是本題答案之所在。3. A。根據(jù)該詞組所在句子及上