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．
举一反三
- One of the main reasons for air pollution is that many cars _______ smoke into the atmosphere.
- Which one could be a possible thesis statement? A: The importance of combating air pollution B: It is important to take every possible means to prevent air pollution on the earth. C: Many cars produce millions of tons of carbon dioxide each year. D: Air pollution is a serious problem in all the countries in the world.
- Because air pollution has been greatly reduced, this city is still _______ .
- The woman thinks that the biggest problem of traffic is air pollution that cars causes.[音频]
- ______ automobile pollution, the air quality in this city has become worse. A: As a result of B: In spite of C: But for D: As for