Are you carrying too much on your back at school? You’re 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)
“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”
Oberlin was 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)Doctor’s 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.
3. Pack smart. The heavier things should be packed closed to the back.
4.Bend both knees when you pich up the pack ,and don’t just bend over  at the waist.(腰)
【小题1】“_________”is the main idea of the text.
A The problem of backpacks is worth studying.
B The problem made by heavy backpacks
C What is the best backpack for a student.
D      How to make students’backpacks light.
【小题2】According to Oberlin Reyes and Shirley Park, we know________.
A students have to do too much homework
B students have to carry several backpacks
C backpacks without wheels are bad for students
D too much homework leaves students no free time
【小题3】The expression “switched to” in the text perhaps means________.
A started to use  B turned to  C caught up   D used for
【小题4】According to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.
A 10kg    B 8kg  C 6kg    D 7kg
【小题5】 If students follow the doctor’s suggestions they ________.
A may lighten their backpacks
B can learn how to help themselves
C may feel their backpacks are lighter
D will know how to wear backpacks

Are you carrying too much on your back at school? You’re 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)

“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”

Oberlin was 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)Doctor’s 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.

3. Pack smart. The heavier things should be packed closed to the back.

4.Bend both knees when you pich up the pack ,and don’t just bend over  at the waist.(腰)

1.“_________”is the main idea of the text.

A The problem of backpacks is worth studying.

B The problem made by heavy backpacks

C What is the best backpack for a student.

D     How to make students’backpacks light.

2.According to Oberlin Reyes and Shirley Park, we know________.

A students have to do too much homework

B students have to carry several backpacks

C backpacks without wheels are bad for students

D too much homework leaves students no free time

3.The expression “switched to” in the text perhaps means________.

A started to use  B turned to  C caught up   D used for

4.According to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.

A 10kg    B 8kg  C 6kg    D 7kg

5. If students follow the doctor’s suggestions they ________.

A may lighten their backpacks

B can learn how to help themselves

C may feel their backpacks are lighter

D will know how to wear 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 about young students’ back and neck, because their schoolbags are too heavy for them.

    “It’s hard for me to go upstairs with my heavy bag.” Said Rick Hammond, an 11-year-old students in the US.

    Rick is among students who have schoolbags with two straps（带子）, and many other students choose rolling（有滚轮的） bags.

    But even with rolling bags, getting upstairs and buses is still a problem for children. Doctors say students should carry no more than 10% to 15%of their own body weight.

    Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10%of their weight and older children shouldn’t stay with over15%,because their bodies are stillgrowing.

    Teachers and parents should do some things to help children. And the best answer is to have less homework.

(  ) 6.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 US carry too heavy school bags

(  ) 7.Children feel it hard for them to go upstairs because                  

A. they are too young   B, their school bags are too heavy

C. they are too heavy   D. their parents don’t always go upstairs with them.

(  ) 8.If a child carries a heavy school bag,        

A.his back and neck may be hurt  B. his head and arms may be hurt

C.his hands may be hurt        D. his feet may be hurt

(  ) 9. According to the doctor, Scott Bautch, if a child in Grade 5 weighs 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

(  ) 10. Some students think the best answer to this problem 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 the books they will read that night

D. they should use thin books instead of thick ones

Doctors are starting to worry that younger and younger students are having back and neck problems as a result of school 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 than10% 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!

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

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

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

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

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

“Tom? Are you in bed yet?” called Mrs. White. There was no answer. Mrs. White put down her book and went to her 14-year-old son’s room. Tom was sitting in front of a bright computer screen on which a motorbike was running fast.
“Oh, Tom. You’re still playing on that computer game. You must stop now, because it’s half past eleven. If you don’t go to bed soon, you’ll be very tired tomorrow.” Said Mrs. White.
“But I’ve nearly won the game.” Tom said to Mrs. White. She could see the excitement on his face. She sat beside him.
“You’re always playing on the computer. You spend more time on this machine than on your homework.”
Today more and more families have computers. Parents hope computers can help their children improve their study at school. But many of their children use computers to play games, listen to songs and watch videos instead of studying. We often see that computer net bars are crowded with people, especially young boys. They spend a lot of money competing(竞争) with the computerized(用计算机控制的) machines. The more they lose, the more they want to win. The result is that they don’t’ want to work or study.
In some countries, even scientists hate computers. They say computers cause millions of people to lose their jobs or cause them a lot of trouble. Computer game addiction(瘾) is a serious problem in social life. Something should have to be done to solve the problem.
【小题1】How did Mrs. White feel when she saw her son playing late?