写大学英语作文标题:Air PollutionDirections:You should write at least

写大学英语作文
标题:
Air Pollution
Directions:
You should write at least 120 words and you should base your composition on
the outline below:
1）大气污染严重,人类生存的环境日益恶化；
2）如何才能减轻大气污染；
3）我的看法.
.120个字

Air Pollution
The United States produces more air pollutants than any other country, most of which are released via transportation, particularly by cars. The escalating number of drivers and cars on the road contributes greatly to human health problems and global climate change because almost every stage of a car's life, from its production to its fueling, is detrimental to the air.
Pollutants
Vehicles produce several types of air pollutants. For humans, among the most harmful are hydrocarbons and nitrogen oxide, which combine to form smog; particulate matter, which is harmful to lungs; and carbon monoxide, which is formed from the combustion of gas. The latter blocks oxygen's circulation in the body, a particular risk for the very young and very old. More than half of the cancers traced to air pollution are caused by a car's hazardous pollutants. In the atmosphere, substances like carbon dioxide, produced from the burning of gasoline in a car's engine, contribute greatly to the greenhouse effect and debilitating climate change.
Solutions
There are a plethora of solutions to dampen a car's impact on air pollution. Driving less by using smaller electric vehicles, bikes or public transportation is important, as is buying hybrids or cars with computers to help attain optimal engine performance. Another help would be using alternative fuels and energy sources, an option many scientists are working on with an eye to the future.
再问： 作文太长了，要求是120字左右的。。。
再答： 你每段删减两句，只留主题句，不就OK啦~嘿嘿~
再问： 有那个耐心看，那还不如我自己写啊。我只是懒得写而已
再答： 我只能给你改到这个程度了，字数要是再少，题目里要求的三条内容就表达不清啦~ 下面内容分三部分，分别对应你题目里的（1）（2）（3）~还望能对你有所帮助~敬请笑纳~ In the atmosphere, substances like carbon dioxide, produced from the burning of gasoline in a car's engine, contribute greatly to the greenhouse effect and debilitating climate change. There are a plethora of solutions to dampen the air pollution. People would be using alternative fuels and energy sources, an option many scientists are working on with an eye to the future. In my opinion，we can improve the air quality from ourselves. Driving less by using smaller electric vehicles, bikes or public transportation is important, as is buying hybrids or cars with computers to help attain optimal engine performance.