You can take the books to home. A B C——青夏教育精英家教网—

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 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 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.

Scott Bautch, a back doctor, said children under 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 answer is, as some children said, to have no homework at all!　

(　 )48. 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

( )49. If a child carries a heavy school bag,_______.

A. his back and neck will be hurt

B. his head and arm will be hurt

C. his hands will be hurt

D. his feet will be hurt

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

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Do you know anything about the way of shopping in western countries?People there usually make shopping list first and then they go shopping．Most people like to go to the supermarkets because they can get almost everything in one supermarket.For example, many styles of clothes，food，sports things, books. And the things in supermarkets are cheaper．

When they get into the supermarket，they carry a basket or a cart(购物车).Then they buy things and put them in the basket or a cart. After getting everything they want，they pay the money．There are always a lot of people in the supermarket at weekends.They must wait in a line. Most people go to the supermarket once a week. Going shopping in a supermarket is a part of their life.

1 People can buy_________from supermarkets.

A．food B．books C．clothes D．A，B and C

2People often ____ before they go shopping .

A.make shopping lists B.take money from the bank

C.have a meal D.take a walk

3 After people put the things in the basket，they go_______

A．home B．to pay for the things in their baskets

C．out D．to another shop

4 Things in the supermarkets are_______

A．cheaper B．more expensive C．better D．more

5which is NOT right ?

A.Most people go to the supermarket once a week．