There are 　　　  students in our school.

A. three thousand        B. three thousand of

C. three thousands       D. three thousands of

选词并用其适当形式填空

　　work, close, look, have, teacher, pen, eat, China, play, climb

　　1. This is our ________ desk. Ours are over there.

　　2. Bill has three ________. One is new and the other two are old.

　　3. His uncle ________ very young but he is over forty.

　　4. Let's ________ basketball after class.

　　5. Look! The cats are ________ up the trees.

　　6. The shop isn't open. It's ________.

　　7. My brother ________ some new picture books.

　　8. In our classroom there is a large map of ________.

　　9. Mum, please give me something to ________. I'm very hungry.

　　10. Does Mr Green like ________ in this Chinese school?

　　　 Scientists have helped people understand the dangers the earth is facing.As people live on the earth, we should be fully ready to deal with the dangers.If we do not pay more attention to the problems caused by air pollution, our earth may no longer be a healthy place for plants, animals, and people to live.

　　　 Cleaning up the air is a job that all countries must work on.The problems caused by air pollution can be solved, but a lot of work needs to be done.Governments around the world are beginning to work together to lower the levels of dangerous gases in the atmosphere (大气层).If this can be done well, the ozone layer (臭氧层) can rebuild itself, global warming can be controlled, and acid rain can be reduced.

　　　 In 1967, the government of the United States passed the Clean Air Act.More parts were added to the act in 1970, 1977 and 1990.As a result of these laws, cars now must reduce the amounts of harmful gases.Power factories must use “clean coal” methods to reduce acid?rain gases they produce.

　　　 In 1970, the Environmental Protection Agency (EPA) was set up.The EPA's job is to make sure that the environmental laws are being followed and to find out new dangers and offer solutions.The first Earth Day was also ce?lebrated in 1970.

　　　 While it is very important to address with air on a global scale, each person can also do something to protect the earth.Here are some things you can do every day：

(1)Turn down the heat and air conditioning.

(2)Use the dishwasher only when there are full of dishes.

(3)Practice the 3 Rs: recycle, reuse, and reduce.

(4)Plant a tree.

(5)Walk or ride your bike.

(　　)6.If we don't care about ________ problems, our earth may no longer be a healthy place.

A.air pollution B.water pollution

C.noise pollution　 D.sea pollution

(　　)7.Every country should ________ to solve the problems caused by air pollution.

A.rebuild the ozone layer　　　 B.clean up the air

C.produce harmful gases D.reduce acid?rain gases

(　　)8.All the things the EPA can do is to ________.

A.make more laws 　　　　　 　B.find out new dangers

C.protect the environment D.plant trees

(　　)9.The Clean Air Act was passed ________ by the American government.

A.In 1967　 B.In 1970 　C.In 1977 D.In 1978

(　　)10.In our daily life, we can do something to protect the earth by ________.

A.using more cars B.riding the bikes

C.cutting down trees　 D.turning up the heat

"We're going to move," Jimmy said to Mr. James，her teacher, with tears(眼泪) in her eyes. "Dad lost his job and now we don't have enough money to live in our house." Pam was walking by and just heard Jimmy's talk with Mr.James.

　　In the lunchroom Pam met Carol and said, "I've got something to tell you about Jimmy." As she started to tell Carol about Jimmy's dad, several other classmates stopped to listen. Pam felt bad telling what she had heard but she went on anyway.

　　After school, Pam saw some of her classmates talking to Jimmy. "Where does your dad work?" one of the boys asked. Jimmy's face turned red. She left without answering. Pam felt terrible, because she didn't mean to hurt Jimmy. And she hadn't thought that some of the classmates would make jokes and laugh at Jimmy about her father's losing the job. Pam didn't know what she could do to help Jimmy.

1.The story wants to tell us ____.

A.It's difficult to move away     

B. girls don't like to talk to boys

C.student's report to the teacher　　

D.secrets are hard to keep

2.Jimmy’s family had to move because ____.

A.her father lost his job　　　　　　　

B.they had a better place to live in

C.her classmates were not kind enough　

D.her father changed his job

3.Jimmy's face turning red show that she didn't ____.

A.feel well enough                  B.know the answer　

C.want to talk about her father         D.want to leave others

4.Pam felt very sorry ____.

A.and wanted to do something for Jimmy　　

B.but went to laugh at Jimmy

C.so she stopped to listen to others　　   

D.and left without answering

5.The whole story happened ____.

A.in class 　B.during and after school　C. at Mr.James's office 　D.in the lunchroom