在日常生活或是工作学习中，大家或多或少都会接触过作文吧，作文是人们把记忆中所存储的`有关知识、经验和思想用书面形式表达出来的记叙方式。那么，怎么去写作文呢？以下是小编为大家收集的四级作文：Air pollution 空气污染，仅供参考，欢迎大家阅读。
The picture reflects the air pollution is threats our healthy day by day,everybody has to wear masks to protect themselves from the fog and haze. Therefore,we can not neglect the seriousness of air pollution.
As a matter of fact,we have many methods to avoid or reduce the harm of air the one hand,the major and largest sources of air pollution come from industrial pollution and automobile efore,we should try to develop new energy to replace the tradition ones;in addition,public transportation vehicles is our top choice when we go out to doing the other hand,we should plant more trees to absorb more carbon dioxide in the air and let trees release more oxygen through the process of photosynthesis.
In brief,the air belongs to us all and everybody on the planet ,to should take the responsibility for protecting the environment,to be specific,the air.