改善环境污染英语作文(精品20篇)

Development and the Environment

It is undeniable that the worsening environment has become the biggest concern of the present-day world. Land resources are dwindling because of water loss and soil erosion. Waste gases poison the air we breathe. The rivers and lakes are polluted by waste dumped in them from factories. It is probably no exaggeration to say that deterioration of the quality of the environment threatens the existence of mankind itself.

Some people are of the opinion that the environmental problem is the price we have to pay for economic development. But I do not think that this argument is valid. After all, what is the point of economic growth if people＇s lives are adversely alfected by worsening environmental pollution?

There is plenty of evidence to show that sustainable development can be achieved by balancing economic growth with protection of the environment. The key to achieving this is to make people aware of the seriousness of the problem. Both governments and ordinary citizens should join hands to make this world a better place to live in, not only for ourselves, but also for future generations.

环境与发展

不可否认的是环境恶化已成为当今世界上人们最担心的事了。因为水资源的浪费和土壤被侵蚀，土地资源逐渐缩小。我们呼吸着有毒的空气，河流和湖泊也被附近的工厂里排放出来的废弃物严重污染了。不夸大其词地说，环境质量的恶化很可能威胁人类的生存。

有些人说环境问题是我们为经济发展所付出的代价。对此，我不敢苟同。如果人类的生活被日益恶化的环境污染所影响的话，那么，经济发展的意义何在?

足够的证据表明：经济发展与环境保护的平衡可以实现可持续发展。关键是使人们意识到问题的严重性。政府和普通市民两方都应该携手使地球成为更适合人类居住的地方，这不仅是为我们自己，也是为我们的后代。

[环境与发展英语作文及译文

请根据下列提示，以Pollution为题，写一篇80词左右的短文。开头和结尾部分已经给出(列入总词数)。

类型

影响

有毒的废物

伤害我们周围的事物

被污染的空气

致人死亡、影响树木和蔬菜的生长

噪音

使人生病、耳聋、发疯

环境污染(Pollution)

One of the most serious problems man is facing is pollution. The poisonous waste may do harm to the things around us. The air pollution can bring death to some people and kill trees and vegetables. Very loud noise can make people ill, hurt their ears or even drive them mad. So we have to realize the harm done to man by pollution. We must try our best to fight against pollution. I’m sure some day we’ll win the battle.

[关于环境污染的英语小作文

We want to hold a green Olympic Games ,so everyone should do something

useful to protect the environment ,whether it is big or small.

We should do something to stop people from doing bad things to the

environment .We should put rubbish into dustbins instead of throwing it about.

Everyone must care for flowers ,grass and tress in public .We shound collect

things like paper ,plastic bags our neighborhood as well ,it’s necessary to

plant more trees every year .

It is everyone’s duty to make our neighborhood much better with our hands

minds .Let’s make a contribution to protecting the environment and the Plympic

Games successfully.

Through the ages, the earth mother with sweet milk feeding countless generations. The original she was decorated lovely young players. But, now human to its own interests, tortured her. Humans have only one earth; And the earth is facing serious environmental crisis. "Save the earth" has become the strongest voice people all over the world.

I feel heartache for the deterioration of the environment, I think: as the future successors of teenagers, if dont understand the gravity of the composition of the human environment and environmental problems, ignoring the laws and regulations on environmental protection, not to strengthen environmental protection consciousness, consciously fulfill their obligation to protect the environment, our life will be destroyed in his hands, god will make a severe punishment for us. Therefore I was determined to start from me good care environment, protect our survival home, be a guard to protect the environment.

古往今来，地球妈妈用甘甜的乳汁哺育了无数代子孙。原来的她被小辈们装饰得楚楚动人。可是，现在人类为了自身的利益，将她折磨得天昏地暗。人类只有一个地球;而地球正面临着严峻的环境危机。“救救地球”已成为世界各国人民最强烈的呼声。

我为周围环境的恶化而感到心痛，我想：作为未来接班人的青少年，如果不了解人类环境的构成和环境问题的严重性，无视有关环境保护的法律法规，不去增强环境保护意识，自觉履行保护环境的义务的话，我们的生命将毁在自己的手中，老天将对我们作出严厉的惩罚。为此我下定决心要从我做起爱护环境，保护我们这个赖以生存的家园，做一个保护环境的卫士。

Environmental problems are becoming more and more serious all over the world. For example, cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories. Trees on the hills have been cut down and waste water is being poured continuously into rivers.Furthermore, wherever we go today, we can find rubbish carelessly disposed. Pollution is, in fact, threatening our existence.

The earth is our home and we have the duty to take care of it for ourselves and for our later generations. Fortunately, more and more people have realized these problems. Measures have been taken to cope with these problems by the government. Laws have been passed to stop pollution. I hope the problem will be solved in the near future and our home will become better and better.

全世界的环境问题变得越来越严重。例如汽车污染的空气影响了人们的呼吸，工厂释放污染的气体，山上的树木被砍伐，污水不断被排人河里。另外，无论我们走到哪里，到处可见随意丢弃的垃圾。事实上，污染正威胁我们的生存。

地球是我们的家园，我们有责任为我们自己和我们的后代去照顾好它。庆幸的是，愈来愈多的人们已经意识到这些问题。政府已经采取了很多措施去解决这些问题，法律已被通过以制止污染。我希望这些问题在不远的将来能得到解决，我们的家园变得越来越好。

Environmental problems are becoming more and more serious all over the world. With the development of industry and agriculture, cars make great noises and give off poisonous gas. Trees on the hills have been cut down,and waste water is being poured continuously into rivers. Furthermore,wherever we go today, we can find rubbish carelessly disposed. The whole ecological balance of the earth is changing. Massive destruction of environment has brought about negative effects and even poses a great threat to mans existence.

We must face the situation that exists and take actions to solve our environmental problems. For instance, new laws must be passed to place strict control over industrial pollution, the pub!ic must receive the education about the hazard of pollution and so on. We hope that all these measures will be effective and bring back a healthful environment.

全世界的环境问题在变得越来越严重。随着工农业的发展，汽车制造噪音、排放毒气，山上的树木被砍伐，污水不断被排入河里。另外，无论我们走到哪里，到处可见随意丢弃的垃圾。整个地球生态平衡正在改变，环境的巨大破坏已带来负面影响，甚至对人类生存带来巨大威胁。

我们必须面对现实，采取行动解决环境问题。例如必须通过新的法律严格控制工业污染问题，大众必须接受污染危害的教育等。我们希望这些措施的有效实施能带给我们一个健康的环境。

N?o havia harmonia entre poderes e o equilíbrio constitucional （政宪平衡）do país estava em perigo com a luta entre o Parlamento e a Regência. O enfraquecimento das reservas em ouro preocupava o comércio e a diminui??o de nossa capacidade produtiva inquietava a todos.

As revolu??es do Rio Grande do Sul e do Pará amea?avam a integridade do Império. A nacionalidade mergulhava num ambiente de dúvida e de incerteza. As revoltas que se faziam para restaurar a normalidade acabavam por agravar os males, em círculo vicioso.

A sociedade debatia-se entre doutrinas mal assimiladas, sem encontrar interpreta??es certas, e radicalizava-se em partidos, fac??es e grupos. Sob o influxo das idéias da revolu??o que derrubara o Rei Carlos X da Fran?a, em 1830, e do federalismo americano, formavam-se grupos e aprofundavam-se diferen?as entre os homens. A fidelidade（忠诚） à Coroa, como nos dias da Independência, era um penhor da manuten??o da integridade nacional.

[关于国家环境的英语作文

随着科技的高速发展，人类对资源的需求越来越多，致使南极北极冰雪融化的速度加快、海平面日渐上升、南极出现臭氧空洞、北京的沙尘暴、雾霾天气不断增加、日本大地震后造成的核泄漏污染……

当我们在享受美好生活的同时，是否想到保护环境的重要性呢?

那么，请同学们关注一下我们的校园，看!操场上、校门口、楼梯过道上漫天飞舞的纸屑、食品袋、饮料瓶;瞧，雪白的墙壁上那些张牙舞爪的涂鸦……这些都是和我们校园文明不和谐的一幕啊!

同学们，如果我们大家都行动起来，争当环保的主人翁，不乱扔纸屑、果皮，不乱涂乱画，随手捡起地上的纸屑垃圾，爱护环境，把我们的校园装扮的漂漂亮亮。当我们在绿树成荫的校园小道上漫步时，一定会感到心旷神怡;当我们在窗明几净的教室里读书时，一定会全神贯注;当我们在整洁优雅的环境中学习时，一定会心情舒畅。

优美的环境，让我们懂得珍惜，学会爱护;优美的环境，让我们知书达理，更加文明;优美的环境，让我们学会谦让，学会做人;优美的环境，让我们道德高尚，使我们的学习更加进步!

it was the industrial revolution that gave birth to environmental pollution as we know it today. the emergence of great factories and consumption of immense quantities of coal and other fossil fuels gave rise to unprecedented air pollution and the large volume of industrial chemical discharges added to the growing load of untreated human waste. chicago and cincinnati were the first two american cities to enact laws ensuring cleaner air in 1881. other cities followed around the country until early in the 20th century, when the short lived office of air pollution was created under the department of the interior. extreme smog events were experienced by the cities of los angeles and donora, pennsylvania in the late 1940s, serving as another public reminder.环境污染现象英语作文二

industrial pollution is clearly one of the biggest contributors to our polluted landscapes, at least here in the west. there are plenty of causes of land pollution, from urban and industrial ones, to rural and agricultural sources.

but which kinds of land pollution are the most important? and what can we realistically do to help prevent more pollution?

this part of the site gives an overview of some of the most important causes of land pollution, including industrial pollution.

there are also some recommendations for helping avoid domestic land pollution incidents.

click here for some good reading on industrial pollution and land pollution causes and solutions.

星期天，妈妈带我去葡萄湖那里玩，妈妈告诉我：“葡萄湖清澈见底，非常漂亮，我听了妈妈的话，急忙让妈妈收拾东西，开车过去。”

我来到这里，立即向那里跑过去，我看着葡萄湖，惊讶极了，我问妈妈这是怎么回事，妈妈说：“原来的时候，葡萄湖清澈见底很漂亮，但是由于科技越来越发达，厂越来越多，那里面冒出的二氧化钛，让葡萄湖呼吸收了，就变成了这样。”我伤心的掉下了一颗“金豆豆”，“不哭，不哭，忘了还有一个好消息告诉你。”“那是什么?”我着急的问妈妈。“主席也考虑到了这个问题，正在想办法解决。”“耶!”我高兴的蹦了起来，妈妈也笑了。我在公园跑来跑去，直到傍晚，我累的筋疲力尽，“宝贝。我们回家吧!”我点了点头。

希望人们保护环境，不再丢垃圾。

1、But save square inch ground, stay with descendant Geng.

但存方寸地，留与子孙耕。

2、Protection of the environment is everyones responsibility.

保护环境，人人有责。

3、Rescue the Earth is to rescue future.

拯救地球就是拯救未来。

4、The amount of water which is suitable to drink is less and less.

水的量是适宜的饮料是越来越少了。

5、But some people dont care about it.

但有些人不关心它。

6、It is very important to take care of our environment.

这是非常重要，我们要保护我们的环境。

7、Now people pay more attention to how to pretend our environment .With the development of science and technology,it becomes more important to pretend our environment.In china,prentending environment is very nomal in our life for the Olympics coming or the peoples sense of environmental pretection.

环境保护是当今社会的一大热点问题。随着科技的发展，环保显得越来越重要。在中国，也许是奥运会的临近，也许是人们意识的崛起，环保已经成为我们身边一个普遍的存在了。

8、It“s our duty to protect our environment.

它”是我们的责任来保护我们的环境。

9、Many rivers and lakes are seriously polluted.

许多河流和湖泊受到严重污染。

10、The rubbish will pullute the enviroment .It is bed for our health.So please dont throw about the rubbish.

垃圾污染环境，损害健康，不要到处扔垃圾

11、Its our duty to protect our environment。

保护我们生存的环境是我们的责任和义务。

12、The waste water will pour into rivers,lakes and fields.It will harm the crops ,kill a large number of fish.

废水流到河里，湖里和田野里，污染农作物，杀死大量的鱼。

13、Its everyones duty to love and protect the environment.

这是每个人的责任，爱护和保护环境。

14、Cherish the source of nature, totally make a living a life green.

珍惜自然之源，共营生命绿色。

15、It is very important to take care of our environment.

这是非常重要，我们要保护我们的环境。

16、Something must be done to stop the pollution.

必须采取某种措施来制止污染。

17、We should not spit in a public place/ cut down the trees.

我们不应该在公共场所吐痰/砍伐的树木。

18、We should plant more flowers and trees.

我们应该种更多的花和树。

19、If everyone makes contribution to protecting the environment, the world will become much more beautiful.

如果人人都为保护环境作出贡献，世界将变得更加美丽。

20、We must pick up some rubbish and throw it into a dustbin.

我们必须拿起一些垃圾，扔到垃圾桶它。

21、As we know , water is very important to man.

我们知道，水是非常重要的人。

22、We cant live without water.

我们的生活离不开水。

23、We should not throw litter onto the ground.

我们不应该往地上扔垃圾。

24、Treat kindly the Earth is to treat kindly oneself.

善待地球就是善待自己。

25、Trees are very helpful and important for us.

树是非常有益的，对我们很重要。

26、How to pretect our enviroment has been one of the most difficult problem in the world.

如何保护环境已经成为世界最大难题之一。

27、We should plant more and more trees in order to live better and more healthy in the future.

我们应该种更多的树，为了生活得更好，更健康的未来。

28、Keep the enviroment clean and tidy.We have only one earth.We should try our best to pretect it,make our home more and more beautiful.

保持环境干净和整洁，我们只有一个地球，应该保护它，使我们的家园更加美丽。

我们的环境污染我们的环境污染我们现在的生活比以前好得多，但环境跟以前简直就不能比。以前的空气清香并掺和着花草的芳香，河水清澈见底.........而现在呢?汽车排出的废气和工业废气相当多，河水臭气直出.........我们大家为了过上好生活，都买汽车，但车主们有没有想过这样的量使用汽车的后果。有些地方之间的距离非常近，但车主们不想跑，就直接开汽车。假如一辆汽车一天排放一千克废气，那么中国每天大约有几千万辆汽车在行驶，那么一天就要排放几千万千克的废气。这个数目仅显示一天一千克的废气排放量和仅计算中国的废气排放情况。工厂的污染更严重，水和空气都要被污染。大量的废水排入大海和河流之中，以致大量的鱼虾、水中植物死亡和大量的水资源被污染.........我们地球上的资源也在一天一天的减少。大量可回收的品中只有3﹪是被回收并再生的。许多白色垃圾造成了白色污染。我心中的家园是和以前差不多的，可是这是很难挽回的。为了我么大家共同生活了几千万年的蓝色星球?——地球的美好未来而努力吧!

The word "college student" is used in most people to highlight the sparkle of the garland, how many people envy, and how many people want to have it!

Since college is such a thing that can change fate, many people think of college students "should". As more and more college students, college students did not seem so popular over the years, even when looking for a job, where the starting point is not higher than others, but this kind of idea.

Indeed, the number of college students is more than a year, a year employment difficult year after year its a question of reality, in the tide of market economy, how to face the society accept vocational selection, out of their way is before each choosing a career is a big exam. In the ordinary peoples eyes to wash the feet is the people to do the errand, especially now some of the bathing place business is improper, is subject to the secular prejudice. A college student to lay down their own shelves, do something that makes people do not understand the work, which in addition to using the learned knowledge in practice, more college students is faced with the severe employment situation, based on reality, tailored for take a way can reflect their own value.

But li didnt do it. She chose a career that didnt fit her own identity -- a foot wash

In some peoples opinion, labor is the difference between high and low, so when it happens, it will cause a great social explosion and become an eye-catching thing.

Indeed, the decades of hard work have yielded a so-called "humble" profession!

But I dont think that anyone has equal dignity, no matter what their social identity is. Society cannot see which profession, every profession has every occupation effect!

Cleaner -- often seen, but, have you thought about it? Without their diligence, what is the beautiful environment now?

Window washers - often demeaned, but, have you thought of it? Without their sacrifice, what is the bright vision now?

......

All in all, the people who work for every job are a good example of society... At least they serve the people with their own sweat!

There is an ideal "choice of door to the door", there is also the choice of "high school is low", and the choice of self-employment, no matter what choice do not want to overreach, should seize the opportunity. In order to start from the actual situation of society and myself, we should make a point of reality, which is only the condition, and the interior should be the key. Choosing a career may not necessarily be the case, but its up to you to grow. If you want to do well in your career, you will have a sense of perseverance and dedication to achieve your goals and social recognition.

So, career choices dont necessarily have to be so big! Live a wonderful self!

How to protect the environment has become one of the biggest problems in the world .

It’s our duty to protect our environment . No matter where we live , we should do something to keep our neighborhood clean and tidy . We can collect waste paper or other waste things for recycling. We should plant more trees and we should prevent those factories from pouring waste water into rivers, lakes and fields. We shouldn’t leave rubbish everywhere and spit in public places . We mustn’t pick the flowers or step on the grass in public. If everyone tries his best to protect the environment , the world will become much more beautiful and our life will be better and better .

我们的环境污染我们的环境污染我们现在的生活比以前好得多，但环境跟以前简直就不能比。以前的空气清香并掺和着花草的芳香，河水清澈见底......

而现在呢?汽车排出的废气和工业废气相当多，河水臭气直出......我们大家为了过上好生活，都买汽车，但车主们有没有想过这样的量使用汽车的后果。有些地方之间的距离非常近，但车主们不想跑，就直接开汽车。假如一辆汽车一天排放一千克废气，那么中国每天大约有几千万辆汽车在行驶，那么一天就要排放几千万千克的废气。这个数目仅显示一天一千克的废气排放量和仅计算中国的废气排放情况。工厂的污染更严重，水和空气都要被污染。大量的废水排入大海和河流之中，以致大量的鱼虾、水中植物死亡和大量的水资源被污染......

我们地球上的资源也在一天一天的减少。大量可回收的品中只有3%是被回收并再生的。许多白色垃圾造成了白色污染。我心中的家园是和以前差不多的，可是这是很难挽回的。为了我么大家共同生活了几千万年的蓝色星球?——地球的美好未来而努力吧!

校园环境卫生的好坏直接影响到全体师生的工作、学习和生活，怎么写一篇校园环境的英语作文呢?下面是小编给大家整理的学校的环境英语作文，供你参考!

学校的环境英语作文篇1

The campus environment is becoming more and more serious, the plastic bags are strewn all over the floor, the scraps of paper are flying, and there is a smell of smoke from time to time. As a result of this, it is conceivable that the school will be what it will be, and no one will dare to imagine it again.

Therefore, in order to make the campus more beautiful and clean, as long as we work together, we will take care of the plants and trees as they do to our lives. Dont litter the peel and plastic bags. We want to be like a cleaning worker, and when the plastic bags and the scraps of paper are thrown on the ground, whether you throw it or not, you must always pick it up. In school, it is hard to prevent spitting or snot.

The students put out their hands, let us protect the campus together, let those bad phenomena which harm the classmate bad, the harm to the classmate disappear forever! In this way, the sunshine will be brighter tomorrow, the air will be clearer and the campus will be more beautiful and tidy.

学校的环境英语作文篇2

The environment is the harbor of the mind; The artist said: "the environment is the source of inspiration. The military says that the environment is the key to success. Educationalists say that the environment is the cradle of creation. Students say: the environment is a necessary condition for our study. Each of us is the master of this campus and has the duty and responsibility to safeguard the campus environment.

The quality of campus environment directly affects the work, study and life of teachers and students. Nowadays, on our campus, we still have the food packaging bags, scraps of paper, and beverage bottles scattered by our classmates. Every time the wind blows, the rubbish will dance on our campus, all of which is out of proportion to the green environment on our campus. "Campus is my home, cherish the people", believe no teacher, the classmate hope to learn in the environment that rubbish everywhere, life.

So from now on, we should take good care of the campus environment and conscientiously maintain the cleanliness and hygiene of the campus. Develop good hygienic habits, and make the rubbish into bins and bagged garbage. Pick up scraps from the ground at any time, throw them into the trash, make sure the ground is clean, and remind and stop littering. Take good care of the campus public goods, not messy painting and so on.

学校的环境英语作文篇3

Remember, the first day when I walk into our campus, I found the campus everywhere "care for the environment, everyone duty" signs, see the signs, I feel very happy, because I know, I live in the campus must be a beautiful environment, suitable for the place where we grow. However, the reality is very cruel and in our campus, always can see some disharmonious white trash, always can see the ground of debris-brick, I sad for it.

Today, who is destroying our campus environment, who has taken away the beauty of the campus? Everyone should know that it is us who destroy the campus environment. There are a lot of students who learn to "paint" on a clean wall. These bad behaviour, has attracted many students, however, we are always at the bottom of the moan, hardly anyone can bent down and picked up the ground of debris-brick; Few people can voluntarily erase the footprints on the wall. Is because of this, after the morning cleaning the health, in the afternoon, the campus is no longer beautiful, so today, here I take this opportunity to call for everyone: civilized and harmonious environment depends on everybody, let each of us to maintain the environment consciously, dont scribble on the wall, dont litter and pick up the waste paper.

I believe that as long as we everyone involved in protecting the environment, our campus will be bright blue sky, the wall of our campus more white, our campus will be beautiful and clean.

a country maid was walking along with a can of milk upon her head,when she fell into the following train of reflections."the money for which i shall sell this milk will enable me to increase my stock of eggs to three hundred,these eggs,allowing for what may prove addle,and what may be destroyed by vermin,will produce at least two hundred and fifty chickens.the chickens will be fit to carry to market just at the time when poultry is always dear;so that by the new year i cannot fail of having money enough to purchase a new gown.green-let me consider-yes,green becomes my complexion best .and green it shall be, in this dress i will go to the fair,where all young fellows will strive to have me for a parter;but no-i shall refuse every one of them,and with a disdainful toss turn from them."

transported with this idea,she could not forbear acting with her head the thought that passed in her mind,when down came the can of milk!and all her imaginary happiness vanished in a moment.

在十年前的中国，大气污染问题对于普通民众来说可能是个比较飘渺的话题。正如空气本身的性质一样，看不见摸不着却无处不在。而专家学者们则主要关注的是对于工业生产，燃煤发电所产生的硫氧化物的处理和汽车尾气中氮氧化物的处理。十年时间飞逝，随着中国经济的迅速发展，人们生活水平的不断提高，人们开始关注生活的质量问题。与其同时越发严重的正是中国以牺牲环境为代价发展经济所带来的环境问题，其中大气污染问题尤其明显。这几年来关于温室气体和温室效应的话题被讨论得沸沸扬扬，专家们各有其立场，但对于普通百姓来说，全球变暖问题似乎仍很遥远。对于温室气体所带来的全球变暖，海平面上升，冰川融化，动植物灭亡的问题，人们大多数是在电视新闻或报刊杂志上看到，恶劣天气的频发也并不是发生在世界每个角落。相比于温室气体所带的大气污染问题，人们开始关注更多的便是最近发生在北京，广州，武汉等多地的灰霾问题。尤其是在北京持续很久的灰霾严重影响了当地人们的日常生活和身体健康，更是引起了广大专家学者和普通民众的高度关注。而其实对于灰霾现象，国外专家学者很多年前便开始研究。

那么何为灰霾？灰霾是导致近地面大气浑浊的多种空气污染物的混合体。构成灰霾的主要污染物是硝酸盐、硫酸盐、有机碳、元素碳、等固体细颗粒物（PM2.5）和臭氧()、二氧化氮（）、二氧化硫（）、挥发性有机物（）等气态污染物。灰霾往往与天然污染源的排放和二次污染污染物的形成有关，还与一定的气象条件和地形有关。我们现在最关注的同时也最难解决的室外污染物之一是可吸入颗粒物。可吸入颗粒物被分类为两种，直径小于2.5微米的颗粒物（PM2.5）和直径小于10微米的颗粒物（PM10）。虽然两种形式的颗粒物都对人类健康有极大的危害，PM2.5被普遍认为是更危险的，因为它的体积小，大约只有人类头发宽度的1/30。人们在呼吸时，PM2.5可以进入人类肺组织深处，甚至进入血液，造成严重的健康问题。同时更小的颗粒物在大气中可以有较长的停留时间。因此，PM2.5可以传播的更远，停留在空气的时间越长，影响更大的人口。PM2.5和PM10的主要来源包括机动车，电厂和其他工业源，以及生物质的燃烧。其中一个主要的来源是柴油为动力的车辆。这些污染源相结合，可以在城市或农村地区天空一片阴霾，而且往往发生在下午时段。

对于容易形成灰霾的城市,除了城市当地工业污染,汽车尾气的影响以外,特定的地形导致污染物的难以扩散也是灰霾形成的主要原因，像美国的洛杉矶,还有前面提到的受灰霾影响的北京和武汉都受到了地形的影响。洛杉矶市三面被群山包围，当地空气干燥，白天阳光充足。到了晚上，地表面冷却很快。地面附近的空气变冷，而上层空气都比较热，形成逆温。北京市位于华北平原的西北边缘，背靠太行山余脉和燕山山脉，面对辽阔的华北平原，东南距渤海约150公里, 地处暖温带半湿润地区，气候属于暖温带半湿润大陆性季风气候,四季分明，春季多风和沙尘，夏季炎热多雨，秋季晴朗干燥，冬季寒冷且大风猛烈。武汉市则居于内陆、距海洋远，周围地形如盆地，集热容易散热难，河湖多、晚上水汽多，城市热岛效应和伏旱时副高控制明显。通过比较以上3个城市的情况可以发现它们都是较大的工业城市，而且城市海拔较低，周围至少有一面是高地，都分布在低于南北纬50度的地方。这些地区夏季阳光明媚，天气温暖干燥。在城市的盆地地区，逆温现象十分普遍。夏季的阳光使地面温度升高，城市街道和建筑物迅速升温，与炎热的物体表面接触的空气温度升高。通过对流空气向上运动，但它却不能穿透逆温层，因为上面的空气温度更暖且密度更小。空气聚集，但连续的对流形成了垂直的循环，使空气完全混合在一起。从建筑物和汽车废气释放出的气体和颗粒也都聚集在逆温层下，通过对流把聚集的空气彻底混合。这样导致污染物无法快速扩散而聚集，大大增加了当地的污染物浓度。

城市内部灰霾的形成也同样受到了这种类似地形的影响，学者称它为街谷模型。随着城市化的加速，城市及城市周边的自然生态系统逐渐被人工生态系统取代，取而代之的是钢筋混凝土浇筑的高楼与马路,很容易形成城市街道峡谷。这种城市街道峡谷是指两侧有连续，高大建筑物的狭长城市街道空间。在这种地形下,上层大气在进入城市时，风速迅速降低并产生特殊的湍流，使街谷内的流场完全不同于上层大气。而气流对污染物具有显著的运输、稀释、和扩散作用，因此，对城市街谷内污染物的浓度、分布有着很大影响。北京的灰霾现象正是因为污染物积聚难以扩散而导致北京的灰霾持续了如此之久。有相关专家的研究发现,除了通过控制排放源,增大扩散和增加沉积率来降低大气中污染颗粒物的浓度以外,地面的性质也影响着颗粒物的浓度。有研究表明植被对城市空气质量能有接近5%的提高。在城市，尤其是在城市街谷地带种植植被能通过增加沉积作用而降低60%的可吸入颗粒物（PM）浓度和40%的二氧化氮（NO2）浓度。因此，通过对植被的合理利用能过创造一个有效的城市污染过滤膜，对密集城市地带空气质量的提高有着快速有效并且持续性的影响。

灰霾问题不是一个暂时性的问题，相反它是一个长久的问题，从它如何形成，加剧到我们如何解决治理并消除都需要一段很长的时间。

灰霾现象，它只是地球环境污染的一个缩影。我们更应该探究它的根源问题，什么才是它形成的根源，什么才是它加剧的根源。我们没法通过改变天然的气候和地形来解决城市灰霾问题，但我们可以通过减少排放源，通过增加植被，加强城市绿化来阻止灰霾的加剧。人类的不断进步使得人们在追求高科技的同时却忘记了自然本身的无穷力量。越来越高的大楼，越来越发达便利的交通，相反的却是城市越来越差的生活环境。在灰色的钢筋水泥世界里生活久了，人们是否会怀念那晴朗的蓝天，向往呼吸新鲜的空气和在那充满生机的绿色大自然世界里生活。

现在，咱们家乡的环境越来越差了，空气不再那么清新了，河水不再那么清澈了，我发现这是人们缺乏环保意识造成的。

有一天，我走在回家的路上，突然，一个香蕉皮从前面扔过来，我转身看了一下，是一位叔叔吃完香蕉后，随手把香蕉皮扔到了地上。我跑了过来，对那叔叔说：“叔叔，咱们不能乱扔香蕉皮，那会污染环境的。”叔叔不以为然地说：“不就扔了个香蕉皮。”我非常生气的说：“如果每个人一天扔掉一个香蕉皮，那地球不就成了垃圾站了吗？”叔叔的脸变的通红，把我手中的香蕉皮扔到了垃圾箱里，然后摸了摸我的头说：“哎，现在的小学生可真了不起，咱们大人还没有小学生有环保意识呢！我笑着说：“也许你还比咱们小学生还懂得环保。”我和叔叔都高兴的走了。”

通过这件小事让我明白了只要人人都保护环境，家乡的环境就会变得更加美好。所以，咱们应该保护环境，要知道，保护环境就是保护咱们自己呀！

现在社会上，大量的环境已被严重的污染了，现在，看看这些被人们污染的环境吧！

河

我到公园散步时，闻到了一种臭鱼味，路上的行人也都用一只手捂住鼻子，用另一只手扇着臭味，我也受不了了，连忙加快脚步，我往下一望，原来是河里许多死鱼，这是为什么呢？我百思不得其解，然后又定神一看，想出来了，一定是河水被污染了，我看见了河里有许许多多的垃圾“聚集”在一起谈声说笑，所以一定是鱼儿们受不了了，才在这种恶劣的环境下“安息了”，最主要还是因为人们乱扔垃圾，让河水浑浊，被污染了，唉！望着原本清澈见底的河现在变黑了，原本活泼乱跳的鱼儿们也一动不动了，我有种说不出来的滋味儿！

空气

又是一个晴天，我一个人在街上走着，路上汽车多、公车多、摩托车多，喇叭声也不断地向我一个尽儿地涌来，车又多了起来，然而，行人却少了起来，因为路上空气变得刺鼻起来，汽车尾部工业废气中，含有多种有毒物质，在阳光照耀下，会产生许多有害气体，对人体呼吸道有很大损害，造成呼吸道疾病发病率高。大家为什么有自行车呢？它是克服心脏病的最佳工具之一，单车也能防止高血压，有时比药更管用，还能防止发胖、血管硬化，并使骨骼强半。而且自行车又不会排放废气，又能身体健康。这不是一举两得吗？所以我劝人们不开车只骑车，为整个地球多一分色彩，少一份肮脏吧！

在此，我呼吁大家爱护我们的家——地球，我们只有一个地球，你不爱护她她怎么爱护你呢？所以，让我们共同协力去把我们的家装扮得更美丽富饶吧！并且每个人都勤俭节约、要讲礼貌、讲卫生，这样一来，整个地球都会更美丽，更洁净的！我相信，大家听了我的呼吁后一定会一致行动起来，让我们共同把家变得更美，不是吗？

How Freshmen Adapt to the New Environment?

When freshmen enter the university at the first time they have to deal with all kinds of affairs independently.Whether a new student can understand and become familiar with the environment of the campus rapidly will determine whether he can live and study freely.

Firstly,the freshmen should be familiar with layout of the campus as soon as possible.As soon as freshmen arrange properly their luggage after entering the university,they should familiarise themselves with every location in the campus at once.In this way,they will save more time and get along smoother than others when they go through various kinds of formalities and solve various kinds of problems.

Secondly,freshmen should consult seniors more. It is the swiftest method to ask those familiar with the environment of the campus.

Finally,holding certain positions in the class can also help freshmen to adapt to their life on campus.

人们一直以为地球上的陆地、空气是无穷无尽的，所以从不担心把千万吨废气送到天空去，又把数以亿吨计的垃圾倒进江河湖海。大家都认为世界这么大，这一点废物算什么？我们错了，其实地球虽大（半径6300多公里），但生物只能在海拔8千米到海底11千米的范围内生活，而占了95%的生物都只能生存在中间约3公里的范围内，人竟肆意地从三方面来弄污这有限的生活环境。

我觉得我们应该保护地球，因为没地球就没有我们人类，所以我们必须保护地球。保护地球是我们的责任！