城市污染问题英语作文【最新20篇】

It is a fact that college is becoming more and more expensive and college life is becoming especially hard for the students who were born in needy families. However, there are several ways in which these students can cover their tuition that their parents are not able to afford. Finding a part-time job, for example, is an ideal way. Besides, one can ask the bank for a loan and repay it when he has the ability. Finally, one can seek assistance from the society.

For me, earning tuition by doing part-time jobs is the most suitable way. First, I learn to be independent both mentally and economically in this way. Apart from this, I no longer need to wor-ry my parents with so heavy a burden. Finally, since I earn my own living, I will be more confi-dent with myself and, therefore, I can live a busy but meaningful college life.

很多年以来，环境日益恶化。我们在提高生活水平的同时，也在导致环境污染。以下内容是小编为您精心整理的环境污染原因英语作文，欢迎参考！

环境污染原因英语作文一

The environment is everything around us,for example,air,water,animals,plants,buildings and so on.They all affect us in many ways and closely related to our lives.People cant live without the environment. Everybody needs to breathe air,drink water and eat food every day.We burn coal to keep warm,and we use wood to make paper.As a result,we become the part of the environment. The environment has been getting wores and wores for many years.We have been upgrading our living standard, meanwhile the environment has been polluted.Somke form factory chimneys pollutesthe air.Machines and engines make noises that annoy us constantly.Animals are homeless because the forcests are decreasing every minute.Streets are crowded with people and vehicles.The environment painful for us to live in it now.So its time to solve those problems.

Fortunately,it isnt too late to correct our mistake.People are coming to realiza the importance of the environment.We have begun to try our best to improve it.Laws are being made dealing with air, water and noise pollution.The river be bright,the sky will be clear,the flowers will be beautiful,and the sunbeam will be dazzling and pretty.We believe that we wil be able to save our environment and live in a better world

环境围绕我们身边，例如：空气、水、动物、建筑等。它们从各个方面影响着我们的生活，与我们的生活密切相关，人们离开环境就无法生存。每人每天都要呼吸、喝水和吃东西。我们少煤取暖、用木材造纸。结果，我们也成为环境的一部分。

很多年以来，环境日益恶化。我们在提高生活水平的同时，也在导致环境污染。从工厂烟囱里冒出来的烟污染空气；机器和引擎经常发出恼人的噪音。因为森林每分钟都在减少，使动物们无家可归。街道上挤满了人和车辆。环境在我们的生活中是最重要的，但是现在它已经让人们讨厌。所以，该是解决这些问题的时候了。

幸运的是，现在改正错误还不晚。人们意识到环境的重要性。我们已经开始尽力改善环境。法律也开始涉及到空气、水和噪音等问题。将来，河流会更清澈，天空会更晴朗，花朵会更鲜艳，阳光会更灿烂、更温暖。保护环境会使我们生活在一个更加美好的世界中。

环境污染原因英语作文二

With the improvement of our living standard, more and more people can afford a car. As a result, our roads are more often than not crammed with cars. However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. So nowadays we advocate to lead a low-carbon life.

My suggestion is we should ride bikes more often instead of driving cars.By riding a bike, we can not only exercise our body but also protect our environment. Why not have a try, my dear friends

与我们的生活水平的提高,越来越多的人都买得起汽车的。因此,道路往往没有堆满了汽车。然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重。所以现在我们提倡过低碳的生活。

我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境。为什么不试试,我亲爱的朋友

In the past few decades, our Earth has changed a lot, but to the bad

direction. Among these changes, the air pollutions resulting from a huge number

of automobiles and coal-burning is almost the severest. The severe air pollution

alarms humans of the heavy load we have exerted on Earth by our insatiable

production and usage of automobiles. However, with the deepening of

urbanization, more cars are needed, which will make the air pollution worse.

Therefore, the following actions should be taken. First, we should apply the

most cutting-edge technologies in order to adopt new forms of energy as

substitutes for fossil fuels. Second, try hard to develop possible

transportation means, which are enviromental friendly. So that the citizens can

reduce the dependence on cars. In short, our humans should take responsibilities

for the air pollution and have to find ways to solve this problem.

08年浙江义乌中考英语作文范文：义乌作为一个国际商贸名城，吸引了越来越多的国内外游客来旅游购物。因此，建设一个绿色，文明的义乌显得尤为重要。请你以为题，写一篇短文。

参考词汇：environment duty,rubbish,plstic,pollution,plant

要求：（1）语句通顺，语意连贯，书写认真 （1）词数809左右。文章开头已给出，不计入词数

（3）可适当发挥（文中不能出现真实的人名和姓名）

As we know,Yiwu is an international city.________________________________________________________

参考中考英语作文范文：

How to build a greener city

As we know,Yiwu is an international city. It attracts more and more people to come and do business.So its our duty to build a beautiful green city. As students,we shouldnt throw rubbish anywhere on the ground or use too many plastic bags. Ask the factories not to put waste water into the river and wed better not go to school by car so that we can reduce the air pollution. Whats more, we should plant more trees and flowers to make our city greener. Lets work hard for our city tohave a good environment.

如何建立一个更绿色的城市我们知道，义乌是一个国际城市。它吸引更多的人来这里做生意。所以建立一个美丽的绿色城市，我们的责任。作为学生，我们不应该把垃圾扔在地上的任何地方或使用太多的塑料袋。要求工厂不要把废水排入河中，我们最好不要坐汽车去学校，我们可以减少空气污染。更重要的是，我们应该种更多的树和花来绿化我们的城市。让我们努力工作，为我们的城市有一个良好的环境。

What I expect for city life is not just about drink bars, shopping mall, entertainment center etc, although they are indeed better than the facility in the rural areas. What I expect for city life is a clearer environment, not only in the surroundings but also in peoples spirit. I hope the people around me are all good mannered with politeness and courtesy, there is no quarrel, no battle, people treat each other with respect. I hope there would be no traffic jam as in Beijing our country capital today where traffic jam happened everyday, which make the citizens feel depressed and great pressure.

living conditions on Guangzhou sport university

Guangzhou sport university was founded in October 1958, it is one of the oldest sports university founded in China.The first time I entered the campus as a freshman, I was deeply attracted by her cultural atmosphere and historical connotation. I enjoy my life here.The accommodation, canteen, library and some other living conditions.

The accommodation service of our university has gained in acceptance increasingly because of its high quality and relatively low expense. But the dorm often without water. I hope that the school can find a solution as soon as possible so that we had on the day of water. Moreover our library contains a large variety of books. In it you will find both literary and scientific and technical and sports books in Chinese and in foreign languages.We often go to look for books which we want to borrow or to read articles which we like to consult.Our library provides all useful reading matter and reference materials according to our needs.Otherwise, canteen service is pretty good. So we need not worry that we would lose our appetite when far away from home. The varieties of the food are so wide that we can enjoy differently delicious dish every day. What’s more, the prices are very reasonable. We are satisfied physically and mentally.

I love Guangzhou sport university, so I love my class, which is just like another home with my fellows owning the same dream.

As we all know,Chinas mainland population grew to 1.339 billion by 2010,according to census figures released on Thursday,so the government take many action to reduce population.In the most families only have one children,for example me,in my home,my parents only have one children.In fact,I really want to have a brother or sister,because if I have a brother or sister,I will not feel lonely.And if I have some problems,he or she can help me.We can play together and grow up together,when I saw other children play with his brother pr sister in my childhood,I’m admired him very much.Until now,I also want to have a brother,if I have something can’t tell others,I can tell him,and he will protect me.

So in the future,when I have my own family,I will be a parent,I hope I will have two children,one is a boy,the other is a girl.They can accompany with each other,and the brother can protect sister if she have some problems in the outside,and they can study how to cooperate.When they grow up,we will be old,he and she also have many babies,and we will live together very happy.

【范文】Shen Zhen is my favorite city. It is a young and promising city. I have been living in this city for over ten years. I love the seafood in this city as well as its beautiful scenes. In summer, I can go to the sea to see the sun rise, or enjoy the fresh cool sea water. On weekend, I can go to the park to have a walk. Shen Zhen is my hometown. When I grow up, I want to make contribution to this city and make it becomes a better city.

【翻译】深圳是我最喜欢的城市。她年轻富有活力。我在这里居住了10年。我爱这座城市的海鲜和美丽的风景。夏天来的时候，我可以去海边看日出，或者去享受冰爽的海水。在周末的时候，去公园散散步。深圳是我的家。等我长大了，我要为这所城市作出贡献，让她变得更好。

近年来，中小学生健康问题日益引起人们的关注。请你用英语就该问题谈谈你的看法。

要求：(1)内容包括①列举中小学生面临的健康问题。

② 请谈谈怎样才能保持健康。

(2)字数：60---80词。

(3)短文中不得出现你的真实姓名、学校名和地名。

范文：Every one wants to keep healthy today, especailly our students. But we dont pay attention to our health. Some of them go to school without breakfast in the morning. Some students and pupils play computer games or watch TV all day, espacially at the weekends. Many boys think it is cool to drink or smoke.

It is important for us to have good habbits. We should eat breakfast every morning. We can watch TV or play games for a short time, then have a rest. We also can take part in some clubs. I think it is necessary for us to keep healthy.

As we all known,food safety problems are more and more popular in our country,because

more cases about food safety problem have appeared.

Firstly,As the old saying goes,the food is what matters to the people.Food plays an important role in peoples life.So food safety influences peoples health and life.Secondly,some producers only think about earning money without thinking about ensuring food safty.they produce unqualified food.Thirdly,some food supervisory departpents dont perform their duty completely.This behavior make some producer ignore the safety of production.

If we want to solve problems that is illustrated former,we must call on the supervisory department to manage the food market.And the producers must paly their roles.Lastly,we hope that there is law that punish illegal acts.

with the improvement of our living standard, more and more people can afford a car. as a result, our roads are more often than not crammed with cars. however, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. so nowadays we advocate to lead a low-carbon life.

my suggestion is we should ride bikes more often instead of driving cars.by riding a bike, we can not only exercise our body but also protect our environment. why not have a try, my dear friends?

与我们的生活水平的提高,越来越多的人都买得起汽车的.因此,道路往往没有堆满了汽车.然而,随着越来越多的废气排放是汽车、空气污染问题变得更加严重.所以现在我们提倡过低碳的生活.

我的建议是我们应该更经常骑自行车而不是开车骑一辆自行车,我们不仅能锻炼身体,也能保护我们的环境.为什么不试试,我亲爱的朋友?

污染环境的英语作文应该要如何写呢？以下便是小编为大家整理的污染环境的英语作文范文，希望能给大家带来帮助。

污染环境的英语作文【1】

I read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why?——Fresh air is getting less and less in Japan, and so is it in the U. S. A.

In fact, environmental pollution is a very serious problem the whole world is facing.

it is mainly caused by the waste products released from artificial substances, industrial production and increased consumption of goods. Bedsides, the use of chemical substances in agriculture also causes environmental pollution. Look at the sky, you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.

How to change this condition?More and more countries are trying to work out some effective means to bring it under control, but no great success has been made.

污染环境的英语作文【2】

The picture shows the pollution caused by chimneys of the factories in cities. Often, the sky is covered by large clouds of smoke from chimneys. The air is nearly suffocating, especially in the evening as it becomes cold and the smoke is spreading everywhere. The scene reminds us of the end of the world.

From the picture we can infer that the drawer of the picture intends to convey to the readers that unplanned factories has brought about great hazards to the city air condition. Due to planning mistakes, factories were usually placed in the center of cities, among residential and business districts. Besides, nearly every block has several chimneys for the heating system, which makes the whole city immersed in thick columns of smoke. As a result, respiratory diseases have been reported to be rising and old people dying of the worsening air pollution.

Pollution is really a hot issue in the world. If we don’t take useful measures, we may live in terrible surroundings, and some unexpected results may come out in the end. So, what we should do is to bring down the problems caused by chimneys. For one thing, factories with chimneys should be moved out of the center of the city and it should be made sure that the waste gases are at least not poisonous. For another, other means of heating should be developed to stop using coal. In a word, in the city there should be no coal, no chimney, and no smoke to pollute the air.

污染环境的英语作文【3】

It is reported that ten big cities in China are being ranked among the top twenty cities with the highest pollution index in the world. This means it is high time we did something to bring the situation under control.

Many factors are contributing to the deteriorating situation: industrial wastes pumped into the air, the lakes and rivers; a increasing number of automobiles crowding into the streets; the widespread use of plastic bags etc.

To my view, stiffer laws and regulations must be implemented to check pollution. Industries that release wastes without permission should be heavily fined. Cars should be equipped to minimize the exhaust they release into the air. And the use of plastic bags and disposable meal boxes should be banned. What’s more, the media should play an important role in implanting a sense of environmental consciousness into people’s mind.

If everybody works toward a common goal of making the environment better, we can create a cleaner and lovelier world for us and for the coming generation.

I live in a city, since I was small, I witnessed all the things happened in this city. Now, in my eyes, after so many years, the city has changed so much. First, the transportation has become fluent.

Many years ago, there were less bus stations, people always needed to changed their lines by many cars.

But now, almost all the places can be reached by bus, people don’t need to change the line. Second, the buildings are enlarging, this reflects the city’s economy develops fast.

Indeed, I can go to many newly built public places to have fun, some are for children, some are for the old, all of these are good for people’s communication. The city’s change reflects people keep pace with time.

我住在一个城市，当我很小的时候，我目睹了发生在这个城市的一切事情。现在，在我眼里，交通变得便利。很多年以前，公共汽车站点很好，人们总是需要通过换车来改变路线。现在，几乎所有的地方都可以通过公交车到达，人们不用改变路线。第二，建筑正在扩大，这反映了一个城市经济的快速发展。确实，我可以去很多新建的公共场所玩，一些是给孩子的，一些是给老人家的，所有的这些对于人们的交流是有用的。城市的改变反映了人们与时俱进。

[初中英语作文：城市的变化

How to save environment? I think we should do the followings: First, it’s best to ride a bike to school, don’t take a bus or a taxi. Second, I will remember to turn off the lights when I leave the classroom.

Third, in my free time, I will collect the empty bottles and waste paper for recycling. The fourth idea is turning off the shower when I ‘m not using it. Fifth, it is imporment to save water and money.

Also, I won’t spend too much money on expensive things. Last, we had better not cut down the trees, we have to take care of the trees . I’ll try my best to save the energy, I hope I can do something for our country.

假如你是新华中学的学生，名叫MIKE。去年6月1日，我国已经禁止使用塑料袋，你对此有何看法和什么好的建议？

I’m Mike. I am a student in Huaxing Middle School. Do you know the plastic bags? Do you often use the plastic bags? I don’t like them. I think they use the wasting valuable oil their production. And they can’t decompose(分解) in a short time. The plastic bags will make our world worse. I agree with the rule, which people can’t get the free plastic bags in the shops, supermarkets. It encourages people to use their cloth bags and baskets. It’s good for our environment.

So I hope all the students in our class stop to use the plastic bags, and use our own cloth bags. I hope we can take care of our environment.

Let’s make our world more and more beautiful.

我是迈克。我是新华中学的学生。你知道塑料袋吗？你经常用塑料袋吗？我不喜欢他们。我想他们用的是浪费宝贵的石油生产。他们不能分解（分解）在很短的时间。塑料袋会使我们的世界变得更糟。我同意这一规定，在商店、超市里，人们无法得到免费的塑料袋。它鼓励人们用自己的布袋和篮子。这对我们的环境有好处。

所以我希望我们班的所有同学都停止使用塑料袋，并用自己的布袋。我希望我们能照顾我们的环境。

让我们让我们的世界变得越来越美丽。

[关于环境保护问题的英语作文

Some people like living in the city because city life has many advantages. They think there are more job opportunities in cities， life there is more colorful and meaningful than that in the country， and there are more modern conveniences in cities for people to enjoy.

But some other people prefer to live in the countryside. They say life in the countryside is closer to nature and better for their health， life there is quieter and that country people are more honest than city people.

I would like to live in a city when I am young to earn enough money and I live in the countryside when I am old for having a quite life.

Today, as the economy develops fast, people can buy what they need, the

producers provide them all the new things, so the factory produce many products,

in order to make the biggest profit, they don’t deal with the pollution. Water

gets polluted, it does harm to people’s health, we drink water everyday, the

government controls the producers to figure out some ways to deal with the water

pollution.

It has been billed as a hi-tech bike-sharing boom that entrepreneurs hope will make them rich while simultaneously transforming Chinas traffic-clogged cities.

But, occasionally, dreams can turn sour.

In the southern Chinese city of Shenzhen, more than 500 bicycles for hire have been found dumped in huge piles on the streets, according to reports.

Pictures showed jumbled stacks of vehicles nearly three metres high, with handlebars, baskets and other parts scattered on the ground.

City streets around the country have seen an explosion of the colourful bikes that users can rent on demand with a smartphone app and then park wherever they choose.

The sharing economy is taking off in China, where ride-sharing and Airbnb are increasingly commonplace.

From Shanghai to Sichuan province, bike-sharing schemes are being rolled out in an effort to slash congestion and air pollution by putting a country once known as the "Kingdom of Bicycles" back on two wheels.

Companies such as Ofo and Mobike, with their rival fleets of bumblebee yellow and fluorescent orange bikes, have been locked in a cut-throat battle for customers.

But problems have arisen when clients have abandoned their cycles.

"Some people these days just have really bad character," a man named He, who lives near where the stacks appeared, told the Southern Metropolis Daily.

"When theyre done using (the bike) they just throw it away somewhere, because theyve already paid."

In the past few days he witnessed people demolishing the bikes before discarding them on the side of the road, he said.

Residents told the paper that bikes had been piling up over the past week, either parked haphazardly by careless users or stacked by local security guards trying to clear narrow residential alleys and footpaths.

Zhuang Chuangyu, a representative at Shenzhens municipal peoples congress, said the city needed to step up regulation of the bike-sharing industry in order to improve traffic conditions and safety standards, especially since schoolchildren often used the bikes.

In 1980, almost 63% of commuters cycled to work, the Beijing Morning Post reported in 2015, citing government data. But by 2000 that number had plummeted to 38% and today it stands at less than 12%.

Car use, meanwhile, has rocketed. In 2010 China overtook the US to become the worlds largest car market, with 13.5m vehicles sold in just 12 months.

说起环境这个词，总感觉离我们好像好远、好远。它仿佛一位美丽的天使，默默的守护在我们的身边，无私的奉献着自己的一生。就像妈妈一样疼爱我们，身为“子女”的我们爱它还来不急呢？又怎么会去伤害它呢？

我们在“母亲”怀抱里过着无忧无虑的生活，我们日出而作、日落而息。生活是多么的幸福。在那时树木常青，绿水环绕。仿若人间仙境，令人陶醉。可是，俗话说的好：“一切美丽的事物都是短暂的，再美好的花儿多有凋谢的时候。”经过时间的推移，我们的物质欲望越来越大，想要过上更好的生活。为此大量的树木遭到砍伐，小动物们无家可归，土地沙漠化越来越严重。生态环境遭到严重的破坏。说到这里，我都有点无言以对了。我们人类为了自己的一己私利，却使得生态环境遭到这么严重的破坏，难道我们就一点都不感到自私吗？为了自己，不惜伤害大自然，这种代价未免也太大了吧！这时有人可能会说：“这大自然又不会说话，它又感觉不到痛。在说了，这自然资源本就应该属于我们人类，我们想怎么用就怎么用！”唉，大自然无私的将自己的一切都奉献给了我们。可到头来它所得到的回报又是什么呢？只有我们对它无穷无尽的伤害。你听大自然“母亲”在哭泣；马路爷爷在痛苦的呻吟着；小河弟弟在苦苦哀求着我们：“放过他们吧，给他们最后一丝对生活的希望吧！”

再回过头来想想我们，难道我们如今所拥有的一切都是自己所应得的吗？回首我们所做的一切：将自己吃剩的饭菜随便倒掉；洗手后，故意不关水龙头让水白白浪费掉；每次为了自己所谓的“面子”，点上一大桌子的菜，可就吃上几口，就撤了下去。还有，为了干净就大量的使用一次性餐具。你知道吗？这意味着就会有成百上千的树木面临“灭顶之灾”。将还剩的纸张随手一扔；乱扔垃圾等等。这恐怕都是我们经常干的事情吧。但是我们在做这些事情的时候有没有认真考虑过会对我们的环境有怎样的影响。现如今，在大城市中，环境问题早以成为社会关注的焦点。大气污染、水污染、全球变暖等等一系列的社会环境问题都以迫在眉睫。由于我们的行为，导致有些动物有可能甚至丧命。例如：人们为了发展经济，大力发展工业，工厂内所生产的废水无法处理。只好将废水排放到河道中，由于河水受到污染，河中的生物都没能躲过这场“大劫难”。唉，如果动物们都消失了，我们人类还能继续生存下去吗？所以，导致环境恶化的罪魁祸首就是我们人类。

到现在，我们还会理直气壮的说：“这一切都是我们应得的吗？恐怕不是吧！人类只有在失去时才会懂得珍惜。

如今，我现在终于明白了。原来我们也是大自然的一份子，我们的生活与大自然息息相关，为了我们美好明天，我们应该共同努力，从一点一滴做起，保护环境，共同保护我们赖依生存的家园——地球。

我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。以下是小编给大家整理的形势与政策论文：城市水环境的问题探讨的内容，欢迎大家查看。

摘要: 随着经济快速发展，城市生态形势压力也与日俱增，水环境问题已成为制约社会发展的大问题，环保基础设施建设严重落后，城市生活污染物未得到有效控制，工业污染源未得到严格治理，农业污染日益突出，部分河段水质受污染严重，河水发黑发臭，完全失去水质功能。本文主要对城市水环境治理及污染防治对策进行了分析探讨。

关键词：城市规划;水环境质量;污染防治;对策

城市生态环境是城市宜居水平评价和城市经济发展的重要因素。作为城市生态环境的重要组成部分，城市水环境对生态环境的治理和改善有着重要的影响。受传统经济发展理念的影响，我国城市水环境污染情况不容乐观。而且在城市扩建过程中还造成了大量周边湿地的消失，造成了城市生态环境、水环境的进一步恶化。针对这样的情况，我国近年来加大了城市生态环境治理力度。从城市规划与发展的角度出发，恢复城市周边湿地环境、改善城市水环境与生态环境。

一、城市水环境的基本特点

1、城市用水的特点

生活用水和生产用水是城市用水的主要类型，由于城市人员密集、工业化生产程度高，所以，城市用水需要较高的质量、较大的供水量、稳定的供给，这对城市采水、供水和用水来说有着不同于农村的特点。

2、城市用水的依赖性强

城市由于用水量大、供水要求高，所以，单纯依靠城市区域的供给和开采往往难于满足城市发展的需要，因此，大众城市往往需要从城区周边或外地调水来满足城市的用水需要，“引滦入津”、“南水北调”就是这样的举措。

3、城市水环境脆弱

在我国北方，城市生活和生产用水大都在简单处理或未经处理就直接排放到环境之中，在日积月累的大量污染的影响下，城市水环境受到了严重破坏，并且这一现象有蔓延和恶化的趋势，造成水环境的脆弱和生态的破坏，影响城市深入地发展。

4、城市地下水环境恶化

城市地下水环境恶化来源有两个，一是，城市生产和生活中大量污染源渗入地下，造成对地下水资源和水环境的破坏;二是，城市地表硬化导致城市地面下渗量的减少，在大量开采地下水的同时，没有必要的补充，出现水环境的恶化。

二、城市水环境综合治理方法

1、以人为本，科学发展

把维护广大人民群众的根本利益作为第一点，把群众最关心、最直接和现实的水环境保护问题为重点，转变发展观念，重视生态文明建设，加快建设资源节约和环境友好社会，走科学发展道路。

2、优先保护饮用水源

合格的安全饮用水源是人民生活的必需品，水环境治理应突出重点，优先保护饮用水源，确保群众饮水安全。

3、强化节能减排、效益原则

与区县减排工作挂钩，把COD削减量考核指标纳入到区县水环境治理目标体系中，明确各区县污水处理率、污水处理厂运行负荷率等量化指标。切实保障三个达标，即污水处理率必须达标、污水处理厂的运行负荷率必须达标、COD的减排必须达标。合理安排资金，对节能减排效果明显，有一定经济基础，技术条件成熟，符合国家和行业产业政策的项目优先考虑。

4、治本方针

突出截污治污。河道沿线村镇、企业密集，污染来源复杂。为此，河道治理将坚持“先截污、后清淤、先治理、后换水”的原则，周密排查河道沿线污染来源，大力实施清淤、截污、生态护坡、河岸绿化等措施，加强河道水体自净和生态修复功能;在突出截污治理的同时，各区县还将坚持污水处理厂、配套管网同步建设，大力提升现有污水处理厂运行负荷率，妥善解决污水出路，切实提高河道水环境质量。

5、加强协作，落实责任

市水务局于去年成立了河道水环境考核办公室，将清水工程已治理河道纳入考核范围，各区县按照属地管理原则在本辖区内建立水环境管理机构和相关管理机制，有效巩固水环境治理成果。此外，目前市政府已正式批准本市河道水环境实施“河长制”管理意见，即将公布全市主要河道“河长”名单，构建完善的河道水环境管理长效机制，为今后本市水环境由加强治理向强化管理转变打好基础。

三、城市河流水防治和改善技术的应用

1、底泥疏浚和河床微生态系统修复

在河流洪水、蓄洪功能上,底泥疏浚主要体现在河流利用水面变化增加行洪、蓄洪能力。作为沉积物沉积,有的湖泊水的深度可以被调整,从而减少其调节和存储功能。增加城市河湖疏浚河道水容量后,以确保顺利排出这些河流洪水,保障人民群众的生命和财产安全,也避免了洪涝灾害。底泥疏浚是水环境综合整治的一项重要措施,滇池、巢湖、太湖等水环境综合整治已被广泛使用。可见,合理的疏浚清除污染物,对于生态系统的恢复和重建具有非常重要的作用。

2、人工增氧技术

人工增氧技术是基于城市河流水污染后缺氧的现象,人工的向水体中注入空气或氧气,从而加速水体复氧的进程,提高水体的溶解氧水平,恢复和提高在水中好氧微生物的活力,使河流水的污染物净化,从而改善河流的水质。河流氧气一般使用固定和移动站充氧平台两种形式。河道人工增氧技术的应用,能够使得水质不同时期达到消除黑臭、减少水体污染负荷、促进河流生态系统恢复的目的。

3、调水引流水质改善技术

贯穿城市的内河河网水系,因为控制结构的限制,使得河流水不能够连接到外部的水体,造成水处于静止的状态,当天气炎热的时候,溶解在水中的氧气浓度就会降低,容易导致水质变坏。通过改进水域水动力条件,提高水体污染物的稀释能力,增强局部水体的自净能力,许多城市在水资源利用和部署中,通过跨流域调水工程,解决空间分布不均的问题。

4、植物修复技术

对于河道河流自然恢复应采取生态化措施,主要是通过恢复河岸植被、恢复天然湿地,在河岸种植芦苇、浮萍、睡莲、水生植物和其他湿地植物,以提高水体的净化能力。种植水生植物的城市河流水,一方面能够通过植物的根系的吸收,从而降低和遏制富营养化趋势;另一方面通过种植水生植物,可以也起到美化水体环境,提高城市的景观的效果。

5、生物净化技术

生物净化技术是充分利用天然水体自净的功能,采用人工措施,创造更有利的环境有利于微生物的生长和繁殖,并培养出大量的微生物从而增强水体净化能力,以提高纳污水体氧化降解有机物能力的一种净化方法。目前国内外最常用的生物净化技术是曝气技术、生物膜技术与投菌技术。生物净化技术,其成本低,对环境的影响小,能够有效降解污染物,是水体污染处理的最佳选择之一。生物净化技术及产品的开发,特别是分解菌株的培养也将被筛选到河流水污染控制技术之中,是未来城市水污染防治和治理的发展趋势。将具有特殊分解能力的菌种添加到河边,能够将水体中有毒有害物质分解为无毒无害的物质,从而加速有毒物质的分解、转化,不仅可以提高河流的净化能力,而且也实现了河流的生态修复。生物产品的运用将成为人工增氧、底泥疏浚等现有防治技术的有益补充。

四、结束语

综上所述，我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。目前,在城市河流污染环境下,需要完善城市管线网络,并建设污水处理厂,具体的水污染防治技术措施有:底泥疏浚、人工增加氧气、引水排水水质改善、植物修复、湿地水净化技术等河流强化净化技术。能够应对不同的城市的污水状况,使得城市河流水污染的情况得到了有效的控制,促进城市河流的健康发展。

参考文献

[1]曹洲榕，禹华谦.城市水环境问题及对策探讨[J].四川建筑.2011(01)

[2]高婷，于航宇.浅析我国水环境现状及城市污水的处理[J].中国新技术新产品.2011(16)

[3]陈邵鹏，顾海东.立足流域浅谈城市水环境规划建设[J].中国科技信息.2012(03)

环境保护问题是中考热门话题，出现频率高，难度较大，必须掌握。

1 、6月5日(June 5)是世界环境保护日，我们周围的环境变得越来越糟糕，污染越来越严重……。假如你是学生Jone.，你校要进行“如何保护我们的环境?”专题演讲比赛，要求：(1)、举例说明环境存在的问题1-3方面;(2)、如何保护好我们的环境，采取怎样的措施，举例1-3方面进行说明，字数80左右。

As we all know，the environmemt around us is getting worse and worse .In some places，we cant see fish swimming in the river or trees on the hills. Some people even have no clean water to drink. So I think we must do something to protect the environment. But what can we do?How to protect our environmemt ?For example，we can go to school on foot or by bike . we can use shopping baskets not plastic bags when we go shopping，and we can use both sides of the paper when we write .In a word，if everyone pays more attention to our environment ，there will be less pollution and our life will be better.“There is only one earth”，I hope everyone will protect our environment well.

2、保护环境

( 四川乐山) 从2008年6月1日起，国家将禁止商家免费提供塑料袋，掀起全国“拒塑”的环保运动。假如你是李华，准备以“What Can We Do for the Environment” 为题，写一篇保护环境的英语演讲稿。 内容包含：

(1)。在购物时用布袋子替代塑料袋;(2)。尽可能地再利用使用过的课本;(3)。离开教室应关灯;(4)。最好走路或骑自行车上学;(5)。简述理由：保护环境，减少污染，节约能源等。

参考词汇：布袋子cloth bag 塑料袋plastic bag 保护protect 能源energy

污染pollution 课本textbook

What Can We Do for the Environment

our environment is becoming worse and worse，what can we do for the environment?I think each of us can do a little bit to help with this problem.

The first thing we can do is to use cloth bags instead of plastic bags when we go shopping. It helps to protect the environment. The second thing we can do is to reuse the old textbooks as possible as we can. We should also never forget to turn off the lights when we leave the classrooms in order to save energy. Whats more，it would be better if we walk or ride a bike to school. We should try our best to reduce pollution and waste.

In fact，even the simplest everyday activities can make a real difference to the environment. I believe we can make the world a better place to live in.

3.为了保护地球有限的资源，我们应该采取什么措施呢?请根据下面的提示写一篇约80词的短文，短文开头已经给出。提示词;1.save water，the source of life，protect drinking water，stop polluting，make full use of it;2.save electricity，crucial，turn off，other electric machines;3. save forests，useful，stop cutting down;4.recycle useful rubbish，save resources

参考作文：

Although the world develops much faster and better，the resources on the earth get fewer and fewer.In order to protect them，something must be done.

Save water. Water is the source of life. No water，no life. So its very important for us to do so.Not only should we protect drinking water and stop polluting it，but also make full use of it.

Save electricity. It is crucial. We cant imagine what the life will be like without it.Everyone should do his best to save electricity. Dont forget to turn off lights or other electric machines when we finish working.

Save forests. They are useful .Please stop cutting them down and use recycled paper instead. Make our world a green one to live in.

Recycle useful rubbish. Plenty of rubbish can be recycled like cans，paper，bottles，and so on.

We can save resources in this way. I believe we can make the world a better place to live in.