Then I will tell you the analysis（??n?l?s?s） of the causes [k?:z] of haze [he?z] weather:
Haze is a muddy phenomenon that countless particles of aerosol that suspend in the air, such as smoke and dust. It is the result of some favorable weather condition and increasing discharged pollutants from human.
First of all, the anomaly atmospheric[??tm?s?fer?k] circulation is conducive [k?n'dju:s?v] to the formation of haze. It is more easily to appear in autumn and winter which increase the air humidity. [hju:?m?d?ti] Secondly, the high concentration of aerosol makes great effort on the visibility [?v?z??b?l?ti], which is the main reason of haze weather. The aerosol is some solid or liquid particles suspended in the air which is called PM 2.5 in Chinese.
They are mainly from Motor vehicle[?vi??k(?)l], the burning of coal, second nitrate['na?tre?t], second sulfate [?s?l?fe?t], combustion of Biomass ['ba???m?s], industry, Road dust and so on. In northern china, the carbon from the burning of coal makes the concentration of aerosol increase significantly.(make加动词原
形） Besides, under the influence of sand dust weather, it will make the sand dust aerosol. And with the development of industry, it makes the growing emissions [?'m??n] of sulfur ['s?lf?] dioxide
[da???ksa?d]. All of these adds to the formation of haze.
What is more? The pollutants added to haze change the concentration of aerosol significantly. And its second chemical reaction will lead to the increasing of pollutants concentration. Haze is a common phenomenon in the process of
industrialization. A large number of industrial waste gas [ɡ?s], coal dust and the increasing of automobile exhaust [?ɡ'z?:st] into the air .They are the main source of air pollution and the reason of the haze weather.
第二篇：关于雾霾的英语话题作文
关于雾霾的英语话题作文
雾霾：样题一（环境保护类）
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 didn’t 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
雾霾：样二（环境保护类）
今年（20xx年）除夕到正月十五期间，北京雾霾天气出现的天数占到50%以上，严重影响了老百姓的生活和健康。请写一篇短文，描述一下北京雾霾的情况，分析雾霾出现的原因，并提出治理雾霾的措施。
注意：词数不少于100词。
参考范文：
During the 15 days from New Year’s Eve to Lantern Festival, Beijing was affected by smog for more than half the time, because of which people suffered a lot. On the road people drove slowly because they could not see clearly. People also suffered from many illnesses caused by smog.
The smog in Beijing has been caused by many factors, in which the increase of cars in the city area plays an important role. The carssend off a lot of poisonous gases, which in turn adds to the already seriousair pollution.
In my opinion, the number of cars should be limited.We should call on the people to use more public transport. Only in this way canwe expect to have more sunny days.
雾霾：样三（环境保护类）
假设你是李华，David是你的美国网友。他对目前中国出现的雾霆天气很关注，来信向你询问此事。请你给他写封回信。
主要内容如下：
1.感谢他的关注。
2.简介雾霾 （smog） 天气给人们的身体、生活带来的危害。
3.谈谈你的感想。
注意：可适当增加细节，以使行文连贯流畅；
开头与结尾已写好，不计人总词数；
词数：120左右
Dear David，
I'm glad to receive your letter. _______________________________________
Yours，
Li Hua
参考范文：
Dear David,
I’m glad to receive your letter. I have learned from your letter that you are concerned about the smog which frequently appears in some areas of China. Thank you for your concern. I’m also very worried about such terrible weather because it has brought much inconvenience or rather harm to people’s health such as traffic jam, road accidents, bad coughs, throat hurts and ever lung cancers and so on.
As everybody knows, a good environment comes from good protection. So we should do what we can to make a difference. Try to drive less and choose air-friendly products. Only when everyone has the environmental awareness can we have cleaner air.
Hoping to hear from you soon and share your good ideas.
Recently，haze weather has become a daily one right here in large part of China.People are forced to wear the mask to avoid breathing poisonous air.So it is necessary to find out the reason why leads to that and work out the resolution.If we trace the cause for haze weather ，the main points are as follows ，first，china 's air quality standards are rather lax and evaluation factors are limited，so you will see that current air appraisal system has defects.Second，some people just go for economic interests instead of turning out products according to relevant law and
regulations.They tend to use obsolete equipment in which they are high likely to emit a great deal of wasted air.
Third，across our society ，relevant protection awareness has not built up so that people havent formed a habit of using green product and saving energy as much as possible.Just for the sake of convience to go out，people rely more and more on travelling and working by car while car is the main cause for the haze weatherTo settle this problem，a series of meaures should be taken as follows.First ，we should strengthen air monitor to lower the levels of small particulate pollutants.Second，we should enact more strict laws and regulations and keep perfecting our current law on environmental protection to regulate people 's daily action and the industrial production and punish those factories that ignore the protection and keep emitting dangerous material that cause haze. Third，we should develop green and energy-saving energy to lower the emission of haze and improve air quality.As far as i am
concerned ，if we work together to be able to do such measures ，our environment will getting better and better and haze weather will vanish completely. 20xx年1月14日上午11时，北京市环保局（Beijing Environmental Protection Bureau）联合多个部门召开新闻发布会（press conference），联合相关委办局一起，介绍《北京市空气重污染应急方案（emergency plan）》实施情况，以及近几天空气质量状况及预报信息。
从1月7日起，中国中东部大部地区出现持续雾霾天气（smog），大部地区雾霾日数在3天以上。北京、天津、石家庄、唐山、邯郸、保定等城市污染严重（heavily polluted），部分城市重度污染持续时间达6天。其中，北京于1月13日10时35分发布了霾橙色预警信号（orange fog warning），这是北京市在连续发布大雾黄色预警后所发布的气象史上首个霾橙色预警。
北京市环保监测中心主任张大伟在发布会上介绍，1月10日到13日，基于国家新的环境空气质量标准，北京市空气质量连续四天污染级别维持在重度和严重污染的水平。其中重度污染日从11日到13日都是严重污染。本次污染过程具有影响范围广，持续时间长，浓度水平高（high concentration）三个显著的特点，属于近年来比较罕见的。
张大伟分析表示，华北低温导致采暖排放等污染物排放大、扩散条件不利
（unfavorable diffusionconditions）以及区域污染和本地污染贡献叠加，是造成此次重污染的原因。
第一，污染物排放量大，包括燃煤污染、机动车排放、工业污染和扬尘，这些污染源排放量大，造成本次严重污染的根本原因（root cause）。当污染扩散条件不利，污染源排放污染物难以扩散，空气污染随之加重。特别是20xx年12月以来，整个华北地区处于极端低温天气（extreme low temperature），同比温度比往年要低，由于低温导致燃煤采暖排放量相应增加，这个影响也比较大。
第二，扩散条件不利。近期极端不利的污染扩散条件是形成本次污染过程的直接原因。10日到13日，北京地区被低压（low pressure）控制，地面风速减少，湿度（humidity）加大，并且逐渐形成了进风逆温和大雾极端天气，造成污染物持续积累。
第三，区域污染（regional pollution）和本地污染贡献叠加，近期，北京周边地区污染水平明显高于城区，特别是北部地区，大范围、大区域内污染物的输送和北京本地排放污染物相叠加，使PM（particulate matter）2.5污染物浓度水平进一步升高，也客观上加重了北京地区的污染水平。
张大伟表示，最新的监测数据和气象资料表明，14日到15日，华北地区整体上仍然是维持在低压系统控制形态，目前严重空气污染状况难以根本好转，重污染过程将持续至16日。 （本文中文新闻来自中国网） 雾霾天气
雾霾haze；
烟雾smog；
空气污染指数air pollution index；
橙色预警orange alert；
悬浮颗粒物airborne particulate matter；
可吸入颗粒物inhalable particle；
有毒物质toxic substance；
空气质量检测air quality monitoring；
实时发布PM2.5数据release real-time PM2.5 data
有害空气污染物hazardous airborne pollutant；
污浊的空气foul air；
连续多日烟雾consecutive smoggy days；
防尘口罩anti-dust gauze mask；
能见度低low visibility；
机动车尾气尘vehicle exhaust；
工业化industrialization；
乘客滞留passengers stranded；
追尾rear-end collision