Experts say heavy backpacks are a health risk for kids.
Like little turtles with limbs poking out from their shell, kids shuffle(拖着脚走) to school every day wearing giant backpacks. Even high school students have to bend forward to carry their heavy books to and from school. It's frustrating and looks a little silly, but is it dangerous?
" Yes, " say many experts. " Kids are saying ‘My back hurts, and my neck and my shoulders hurt’, "says Dr. Karen Jacobs, a clinical professor at Boston University. " A heavy backpack can also lead to headaches, slow or sluggish development and other physical problems. "
Jacobs is also a spokesperson for the American Occupational Therapy Association, which sponsors National School Backpack Awareness Day on September 16. She says that too many textbooks and less locker space are making backpacks bigger. "Since at least 1998, we've noticed backpacks getting bigger and heavier, and not in proportion to the kids sizes, "says Jacobs.
A 2010 study from the University of California, San Diego, concluded, "Backpack loads are responsible for a significant amount of back pain in children. " The same study says a full third of kids aged between 11 and 14 report back pain. Other research from 2011 came to a similar conclusion.
"Like the frame of a house, the spine(脊椎)is what keeps bodies strong and upright. Put too much weight on this frame while a young body is still developing, and it could change a child's posture(姿势), compress the spine, and impair children’s growth, " says Rob Danoff, a doctor in Philadelphia's Aria Health. "It also might lead to back problems or injuries when the child's older. "
Experts warn against wearing a heavy backpack, adding something can be done to solve the problem.
28. Which of the following is the best title?
A.Keep Children's Backs Free of All Backpacks |
B.Less Locker Space Means Bigger Backpacks |
C.It's Time to Reduce Heavy Homework for Kids |
D.Bigger Backpacks Equal Bigger Health Problems |
29. Who does Jacobs indicate is mainly to blame for the bigger backpacks?
A.The school. | B.The bookshop owner. |
C.The parents. | D.The backpack maker. |
30. The underlined word " impair" means "__________" .
A.strengthen | B.damage |
C.improve | D.repair |
31. Which of the flowing is the author most likely to deal with next?
A.Some solutions to the problem. |
B.Some reasons for the problem. |
C.Some advantages of e-backpacks. |
D.Some dangers of heavy backpacks. |