This kind of air pollutant come from a variety of natural and manmade sources. Natural sources can include windblown dust, and soot from wildfires. Manmade sources can include motor vehicles, and industrial fuel burning, and manufacturing operations. The one of the main cause that touches off haze is manufacturing operations. Many factories were over measure produced the smog that had over the standard and the smog seriously influence the air become air pollution.
这种空气污染物来自各种自然和人为来源。天然来源可以包括风沙、烟尘从森林大火。人为来源可以包括机动车辆、工业燃料燃烧和制造业务。触动了烟雾的主要原因之一是制造业务。许多工厂测量产生的烟雾对标准和烟雾严重影响空气成为空气污染。
假如你是李华，你的笔友Mike从电视上得知前段时间北京多个地方出现雾霾(haze)，非常担心，写E-mail询问有关情况，请回复。回复应包括以下要点：
1.实况描述;
2.对生活造成的影响;
3.成因简析与教训;
4.你个人的情况。
要求：1.词数100-120;
2.email的开头与结尾已给出，不计入总词数。
Dear Mike,
Thank you very much for your concern. ___________________________________
______________________________________________________________________
Regards!
Yours，
Li Hua
参考范文：
One possible version:
Dear Mike，
Thank you very much for your concern. Last months several places in Beijing were blanketed with thick yellow fog. Everything around disappeared from oursight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and seniors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didnt get any health problems in the haze because I stayed mostly indoors.But to make a significant change we really have to do more to protect our environment. To live a better life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.
Regards!
Yours，Li Hua
随着人们对PM2.5越来越多的了解，人们对自己的生活环境的空气质量越来越关注，更多的人志愿为改善空气质量做出自己的贡献。作为中学生，在日常生活中，我们应该如何去做?
要求：1、文中不得出现真实的人名、地名和校名;
2、词数：80100个词，短文开头已给出，不计入总词数。
As people are knowing more about PM2.5, they are becoming more and more concerned about their living environment. As students, what should we do?
First, we should ride bikes or take buses to school. Riding bikes is also good for our health. We should try our best to advise our parents to drive less. Try to walk or ride bikes to work. Second, wed better use both sides of the paper. Dont waste paper. Third, we should save power. Remember to turn off the lights when we leave the classroom. At last, we should plant more trees and flowers.
If everyone makes a little effort, the world will be more and more beautiful.
