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

The young man often looks after that old woman ______.

A. care　　　　　　　　　　　　 B.carefully　　　　　　　　    C.careful　　　　　　　　　　  D.careless

 

完形填空

　　Late at night, an 1 in a hotel (旅馆) comes ont of his room and asks the servant (服务员) to bring him a glass of 2 . The servant does so. The Englishman then comes back to his room, 3 a few minutes later (几分钟后) he comes out again and once more asks the servant for a glass of 4 . The servant gives him 5 glass of water.

　　Every a few 6 the Englishman comes out of his room and asks a glass of water. 7 half an hour, the servant decides to ask the Englishman 8 he is doing with the water. “ 9”, the Englishman answers slowly, “Its simply that 10 room is on fire(着火了).”

Tom felt ill. He had a 1 headache. So he went to 2 a doctor. The doctor said, “Listen

 3 , I’m going to give you three 4 kinds of medicine. First, these white pills, I want you to

 5 one pill three 6 a day, after  7 . Now, look at these red pills. Take one every day before you go to bed. Now these yellow pills. Take two every  8 you get a headache. ”  

Tom went back home and did 9 the doctor told him. Soon he 10 much better.

1. A. ill　　　　 B. very　　　　 C. worse　　　　 D. bad　　　　

2. A. pay for 　　B. ask　　　　  C. see　　　　   D. find　　   

3. A. care　　    B. carefully　　 C. careful　　    D. more careful   

4. A. different    B. same　　　　 C. expensive　　 D. cheaper　　   

5. A. take　　    B. eat　　　　  C. put in　　    D. having　　　　

6. A. time　　   B. times　　　　 C. again　　    D. of times　　   

7. A. work　　   B. breakfast　　 C. meals　　    D. lunch　　　　 

8. A. minute　　 B. again　　　　 C. time　　　　 D. times　　　　  

9. A. like　　    B. until　　　　 C. just　　　　  D. as　　　　　　 

10. A. feel　　   B. feels　　　　 C. felt　　　　  D. is feeling