题目内容
Are you carrying too much on your back at school? You’re not alone. Back experts in the USA were worried that young students are having back and neck problems because they are carrying too much in their backpacks (schoolbags).
“It hurts my back when I run,” said Eglin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack because it’s too heavy.”
Students have to carry heavy backpacks on their backs for a whole week’s study. Beeline is one of them. They have regular backpacks with two straps(带子) to carry them, but a number of students with heavy loads have switched to rolling backpacks. The backpacks have wheels and can roll on the ground.
Shirley Park’s backpack weighs 10 kilos, and she said, “I’ll change to a rolling backpack because I am starting to have back pain.”
How much is too much? Experts say that students should carry no more than 10 to 15 percent of their own body weight. A few students have had a good idea to lighten the load: Less homework.
Doctor’s suggestions:
●Lighten the load. Take home only the books the students need that night.
●Wide straps are better. They can send out weight over your shoulders and be sure to wear backpacks with two straps.
●The heaviest things should be packed closest to the back.
●Bend(弯曲) both knees when you pick up the pack, don’t just bend the waist(腰).
1.The main idea of the passage is about _______.
A. the problems made by rolling backpacks
B. the advantage of backpacks
C. the best backpacks for students
D. how to lighten students’ backpacks
2.If a child carries a heavy school bag ,__________
A. his back and neck will be hurt
B. his head and arms will be hurt
C. his hands will be hurt
D. his feet will be hurt
3.By the words of the experts, it’s better for a student of 40 kilos to carry a backpack of at most _______.
A. 7 kilos B. 8 kilos
C. 6 kilos D. 10 kilos
4.If students follow the doctor’s suggesting, they _______.
A. will know how to use backpacks
B. may feel their backpacks are lighter
C. can learn how to enjoy them
D. may do less homework
1.D
2.A
3.C
4.B
【解析】
试题解析：文章讲述了 美国专家指出，很多学生的书包过重使得他们的背和脖子容易出现问题，以及对此专家给出了一些建议。
1.A few students have had a good idea to lighten the load”，故选D。
2.Back experts in the USA were worried that young students are having back and neck problems because they are carrying too much in their backpacks (schoolbags)”，专家担心携带太重的书包不利于学生的背和脖子。故选A。.
3.Experts say that students should carry no more than 10 to 15 percent of their own body weight.”一个40kilos的学生最多携带书包的重量为：40*15%=6，故选C。
4.
考点：考查社科类短文。
