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根据短文内容，从短文后的选项中选出适当的选项补全短文。
The earth is about 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways. 1
All over the world, people have cut down millions of trees, so more and more kinds of animals and plants are disappearing. In big cities, cars and buses have polluted the air. Factories have also polluted the land and the water.
2 It is important to the earth. But now air pollution is destroying it and that has made a very big hole in the ozone layer (臭氧层). 3 This is very dangerous because it can cause cancer.
Carbon dioxide (CO2) in the air has increased a lot. 4 it has formed a "blanket" (毛毯) around the each. 5 This makes our earth become warmer and warmer. Therefore, this causes the level of the ocean to rise.
All these problems are very serious. We must do something to stop our earth from being polluted anymore.
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A. The heat from the sun can' t escape, so the temperature is rising. B. Too much harmful light from the sun passes through it and reaches the earth directly, C. Some things we've done are very good for the earth while some are bad. D. Around the earth, there’s a special kind of oxygen (O2) called "ozone" (O3). E. It mainly comes from different kinds of burning materials. |
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根据短文内容，从短文后的选项中选出适当的选项补全短文。
The earth is about 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways. 1
All over the world, people have cut down millions of trees, so more and more kinds of animals and plants are disappearing. In big cities, cars and buses have polluted the air. Factories have also polluted the land and the water.
2 It is important to the earth. But now air pollution is destroying it and that has made a very big hole in the ozone layer (臭氧层). 3 This is very dangerous because it can cause cancer.
Carbon dioxide (CO2) in the air has increased a lot. 4 it has formed a "blanket" (毛毯) around the each. 5 This makes our earth become warmer and warmer. Therefore, this causes the level of the ocean to rise.
All these problems are very serious. We must do something to stop our earth from being polluted anymore.
| A. The heat from the sun can' t escape, so the temperature is rising. B. Too much harmful light from the sun passes through it and reaches the earth directly, C. Some things we've done are very good for the earth while some are bad. D. Around the earth, there’s a special kind of oxygen (O2) called "ozone" (O3). E. It mainly comes from different kinds of burning materials. |
补全对话。从方框中选出适当的句子补全对话。
A: Lucy, why are you going out 1 ?
B: That’s the sound of a truck collecting rubbish.
A: Do you mean you have to take the rubbish to the truck?
B: Yes. You know 2 is our duty. We should help protect the environment.
A: I agree. 3 , we must do something around the neighbourhood.
B: Sure. It is our duty to keep the environment clean and tidy. If we make a contribution to protecting the environment, 4
A: That’s right. We mush try our best to make our country more beautiful. So we should 5 to improve the environment.
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A. taking care of the environment B. the world will become much more beautiful C. do something useful D. after hearing the music E. Wherever live |
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| June 8, 2013 Dear Cindy, I’m sorry to hear that Bird Flu (禽流感) is very serious in some parts of the world and some people have got the flu. We must take good care of ourselves and keep away from the disease. Could you tell me what people in China do to keep away from it? Please write to me soon. Yours, Betty |
| July 2, 2013 Dear Betty, I think Bird Flu is very bad. Many chickens, ducks and birds in our country got the disease. Some of them died, but some birds flew away and they might carry germs(细菌) to other places. This is a serious problem. We must do something to solve it. Let me tell you what people have to do to keep away from the disease. * Do morning exercises every day. * Open the windows in the morning. * Wash hands very often. * Eat more vegetables and less meat. * Go to bed early. I think these are good for our health. Do you think so? Yours, Cindy |
小题1:From the letter we know Cindy comes from _______.
A. Canada B. the U. S. A. C. China D. Japan
小题2:Betty wrote her an e-mail to ask _______.
| A．whether Cindy got Bird Flu |
| B．how to keep away from Bird Flu |
| C．when Bird Flu began to spread传播 |
| D．how Bird Flu spread in Cindy’s country |
| A．we don’t have better doctors or nurses |
| B．Bird Flu is serious |
| C．some places are still poor |
| D．birds with the germs will carry germs to other places |
| A．解决 | B．分析 | C．通告 | D．治愈 |
| A．washing hands very often |
| B．going to bed late every day |
| C．eating more vegetables and less meat |
| D．opening the windows in the morning |