Are you carrying too much on your back at school? You’re not alone. Back experts(专家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .
“It hurts my back when I run,” said Ebelin 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. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(带子) to carry them, but a number of students with heavy loads(负担) 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% of their own body weight. A few students have had a good idea to lighten(减轻) the load: less homework.
Doctor’s suggestions:
Lighten the load. Take home only the books the students need that day.
(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.
(3) The heaviest things should be packed closest to the back.
(4) Bend(弯曲) both knees when you pick up the pack, don’t just bend over the waist(腰).
【小题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

【小题2】From what Ebelin Reyes and Shirley Park said, we know______.

A．students like to carry heavy backpacks

B．students have to do a lot of homework

C．backpacks with wheels are bad for students

D．students have no time to play because of heavy backpacks

【小题3】The underlined word “switch to” means______.

A．use for

B．turn to

C．catch up

D．begin to use

【小题4】According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most.

A．10 kilos

B．8 kilos

C．6 kilos

D．7 kilos

【小题5】If students follow the doctor’s suggestions, they______.

A．may do less homework

B．may feel their backpacks are lighter

C．can learn how to enjoy themselves

D．will know why to wear heavy backpacks

Are you carrying too much on your back at school? You’re not alone. Back experts(专家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .

“It hurts my back when I run,” said Ebelin 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. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(带子) to carry them, but a number of students with heavy loads(负担) 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% of their own body weight. A few students have had a good idea to lighten(减轻) the load: less homework.

Doctor’s suggestions:

Lighten the load. Take home only the books the students need that day.

(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.

(3) The heaviest things should be packed closest to the back.

(4) Bend(弯曲) both knees when you pick up the pack, don’t just bend over 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.From what Ebelin Reyes and Shirley Park said, we know______.

A．students like to carry heavy backpacks

B．students have to do a lot of homework

C．backpacks with wheels are bad for students

D．students have no time to play because of heavy backpacks

3.The underlined word “switch to” means______.

A．use for           B．turn to            C．catch up          D．begin to use

4.According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most.

A．10 kilos           B．8 kilos            C．6 kilos            D．7 kilos

5.If students follow the doctor’s suggestions, they______.

A．may do less homework

B．may feel their backpacks are lighter

C．can learn how to enjoy themselves

D．will know why to wear heavy backpacks

 

Are you carrying too much on your back at school? I'm sure lots of children of your age will, say "Yes". Not only the students in China have this problem, but children in the United States also have heavy school bags.
Doctors are starting to worry that younger and younger students are having back and neck problems as a result of schools bags being too heavy for them.
"It's hard for me to go upstairs with my bag because it's so heavy, "said Rick Hammond, an 11-year-old student in the US.
Rick is among students who have common school bags with two straps(带子) to carry them, but many other students choose rolling(有滚轮的)bags.
But even with rolling bags, getting up stairs and buses is still a problem for children. Many of them have hurt their backs and necks because of the heavy school bags.
But how much is too much? Doctors say students should carry no more than 10% to 15% of their own body weight(重量).
Scott Bautch, a back doctor, said children under Grade 4 should stay with 10 % . But it is also important that older children don't stay with over 15 %, because their bodies are still growing. "Children are losing their balance(平衡) and falling down with their school bags, "he said.
Parents and teachers are starting to tell children to only take home library books they will be reading that night. Some teachers are using pieces of paper or thin workbooks for students to take home.
One of the best answers is, as some children said, to have no homework at all!
【小题1】 From the passage we can know that      .

A．only children in China carry too heavy school bags

B．children in other countries don't carry too heavy bags

C．both children in China and the US carry too heavy school bags

D．only children in the US carry too heavy school bags

【小题2】Children feel it hard for them to go upstairs because

A．they are too young

B．their school bags are too heavy

C．they don't know how to go upstairs

D．their parents don't always go upstairs with them together

【小题3】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

【小题4】According to the doctor, Scott Bautch, if a child in Grade 5 weighs(重) about 30 kilos, the school bag he carries should not be over               

A．5 kilos

B．3 kilos

C．5. 5 kilos

D．4, 5 kilos

【小题5】Some students think the best answer to his problems is that             . .

A．they should have a little homework to do after they get home

B．their teachers had better not ask them to do any homework

C．they should only take home library books they will read that night

D． they should use thin workbooks instead of thick ones

Are you carrying too much on your back at school? I’m sure lots of children of your age will, say "Yes". Not only the students in China have this problem, but children in the United States also have heavy school bags.
Doctors are starting to worry that younger and younger students are having back and neck problems as a result of schools bags being too heavy for them.
"It’s hard for me to go upstairs with my bag because it’s so heavy, "said Rick Hammond, an 11-year-old student in the US.
Rick is among students who have common school bags with two straps(带子) to carry them, but many other students choose rolling(有滚轮的)bags.
But even with rolling bags, getting up stairs and buses is still a problem for children. Many of them have hurt their backs and necks because of the heavy school bags.
But how much is too much? Doctors say students should carry no more than 10% to 15% of their own body weight(重量).
Scott Bautch, a back doctor, said children under Grade 4 should stay with 10 % . But it is also important that older children don’t stay with over 15 %, because their bodies are still growing. "Children are losing their balance(平衡) and falling down with their school bags, "he said.
Parents and teachers are starting to tell children to only take home library books they will be reading that night. Some teachers are using pieces of paper or thin workbooks for students to take home.
One of the best answers is, as some children said, to have no homework at all!
【小题1】 From the passage we can know that      .

A．only children in China carry too heavy school bags

B．children in other countries don’t carry too heavy bags

C．both children in China and the US carry too heavy school bags

D．only children in the US carry too heavy school bags

【小题2】Children feel it hard for them to go upstairs because

A．they are too young

B．their school bags are too heavy

C．they don’t know how to go upstairs

D．their parents don’t always go upstairs with them together

【小题3】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

【小题4】According to the doctor, Scott Bautch, if a child in Grade 5 weighs(重) about 30 kilos, the school bag he carries should not be over               

A．5 kilos

B．3 kilos

C．5. 5 kilos

D．4, 5 kilos

【小题5】Some students think the best answer to his problems is that             . .

A．they should have a little homework to do after they get home

B．their teachers had better not ask them to do any homework

C．they should only take home library books they will read that night

D． they should use thin workbooks instead of thick ones

阅读理解

　　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 Ebelin 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. Ebelin is one of them. They have regular backpacks with two straps(带子) to carry them, but a number of students with heavy loads (负荷) have switched to rolling backpacks. The backpacks have wheels (轮子) and can roll on the ground. Shirley Park's backpack weighs (重) 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 (百分之……) of their own body weigh. A few students have had a good idea to lighten (减轻) the load： less homework .

　　

　　Doctor's suggestions (建议):

　　

1．Lighten the load. Take home only the books the students need that day.

2．Wide straps are better. They can send out weight over your shoulders (肩) and be sure to wear backpacks with two straps.

3．The heaviest things should be packed closest to the back.

4．Bend (弯曲) both knees when you pick up the pack, don't just bend over the waist.

(1) The main idea of the passage is about_________.

[　　]

A. the problems made by rolling backpacks

B. the goodness of backpacks

C. the best backpacks for students

D. how to lighten students' backpacks

(2) From what Ebelin Reyes and Shirley Park said, we know________.

[　　]

A. students have to carry heavy backpacks

B. students have to do homework

C. backpacks with wheels are bad for students

D. students have no time to play because of homework

(3) In the text“switch to” means_________.

[　　]

(4) By the words of the experts, it's better for a student of 40 kilos to carry a backpack of ________ at most.

[　　]

(5) If students follow the doctor's suggestions, they_________.

[　　]

A. may do less homework

B. may feel their backpacks are lighter

C. can learn how to enjoy themselves

D. will know how to use backpacks