举一反三
- At first it was all right because there was plenty of clean air, land and (2) .
- The air after the rain is excellent. I love to _____ ( 吸入 ) the clean air.
- Perhaps the day will come _____ people will be able to breathe clean air in cities.
- Disposed oil and many other items can be reused to（） A: make new materials B: preserve wetland and animals C: have clean air D: have clean water E: collect cigarette butte F: collect despoiled oil
- Air freight is used for goods where the higher cost of transport by air ____ way to other considerations.
内容
- 0
Most cities in the country have introduced "Clean Air Zones" _____ factories and households are only allowed to burn smokeless fuel.
- 1
Both fresh air and clean food are _____________ to us. A: indispensable B: indispensabled C: indispensabling D: indispensably
- 2
Perhaps the day will come _____ people will be able to breathe clean air in cities. A: when B: while C: as D: since
- 3
Make the choice: A: London is known for its smog today. B: London has clean air now. C: London has been polluted since the Middle Ages. D: London is as clean as it was in the Middle Ages.
- 4
四. 段落翻译All around the world， large cities have the same problem：air pollution．Mexico City has very bad air．The air there is dirty and very unhealthy．Cars are one reason for the dirty air．Many Mexicans own their own cars and drive in the city．The factories in the area also cause air pollution．It is not easy to clean up the air in large cities．The government has to make new laws．