英语中考模拟阅读理解题目

　　Are you carrying too much on your back at school? Youre not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags).

英语中考模拟阅读理解题目

　　It hurts my back when I run, said Oberlin Reyes, a student in Virginia. Its hard to get up the stairs with my backpack, because its too heavy.

　　Oberlin is among students whose backpacks were weighed for a week in a recent study.

　　They had regular backpacks with two straps (带子) to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).

　　Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpack because she was starting to have back pain.

　　How much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight.

　　A few students had one suggestion to lighten the load: less homework.

　　P.S. (附) Doctors suggestion:

　　① Lighten the load. Clean out binders (活页材料) and take home only the books you need that night.

　　② Wide straps are better. They send out the weight over your shoulders more evenly (均匀). And be sure to wear both straps rather than hanging the pack over one shoulder.

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