任务型阅读Britishchildrenarecomplainingaboutbackpainbecauset...

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British children are complaining about back pain because their schoolbags are becoming bigger and heavier. According to a recent survey made by the charity BackCare, 80% of British children carry too much weight in their bags, and in the most harmful way, on one shoulder. Some 12-and-13-year-olds are carrying up to 60% of their body weight on days when they have sports or musical instruments (乐器) to have to carry to school. The survey suggests that by 14 about half of pupils would be suffering from back pain.

BackCare recommends that they should carry no more than a fifth of their body weight, and warns that those carrying a third or more run a risk of harm. If the child is small, the problem will be big.

“There is little hope in us trying to protect adults' backs if our children are not protected,” says one of the men from BackCare.

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1. The weight of heavy schoolbags is the      of some British children’s back pain.

charity BackCare is an      that helps protect the children’s backs.

3. Carrying too much weight in a child’s schoolbag does    to his back.

4. It may be     for an adult to protect his back if it is hurt by heavy schoolbags at his childhood.

5. A 12-year-old boy Tom weighs about 30 kilograms. It’s better for him to carry at most      kilograms in his bag.

【回答】

nization     less    

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