学校环境问题英语作文合集2篇 作文怎么写合集20篇

World Environment Day is commemorated each year on June 5th, and started from 1972, which is established by the United Nations General Assembly for raising global awareness to take actions to protect the Nature. The establishment of World Environment Day shows peoples the cognition and the attitude to the environmental problem, and expresses our human beings desire of pursuing the better environment. Every year the United Nations Environment Program proposes a theme, and the 2014 theme of this day will focus onSmall Island and Climate changeand the slogan is “Raise Your Voice Not the Sea Level”.This years slogan is "To improve environmental quality The development of green".

World Environment Day can be celebrated in lots of ways, for instances, planting trees, doing some recycling, participating the clean-up campaigns and so on. Certainly people can also do something simple, like going to work by bus instead of private cars. I believe if everyone takes environmental actions as a habit, we are doing a big difference for the better environment.

在未来有一个山青水秀的城市，山上的森林郁郁葱葱；小溪的河水清澈见底；空气清新甜润。那里没有工厂排出的浓烟，没有河上漂浮的塑料袋，没有被砍伐的树木，只有一片的绿色。

在未来，人类与动植物和平相处，*变成了一只只的小鸟，电锯变成了一棵棵粗壮、结实、挺拔的大树，原子弹在博物馆展出，而工厂的烟囱被拆掉，铺成了湛蓝深远的天空……那时世界上已经没有了“笼子”这个词，处处可见人类和动物一起散步、做游戏的场景。为此，人类还建了一所学校来培养未成年人、动物，教学楼上闪着十二个金灿灿的大字：“大家和谐相处，共建美好家园！”

然而，未来也可能是另外一种景像：一排排的工厂整齐的被建在山坡上，它排出的浓烟把原本瓦蓝瓦蓝的天空污染成了灰色。河水变得臭了、黑了，树木被砍光了，裸露的树桩上有许多的、白色的塑料袋。许多年以后，一场沙尘暴彻底改变了这一切，那一天，沙尘暴铺天盖地地袭来，整个世界昏天暗地，沙尘暴一直刮了九天九夜，所有的城市、工厂全变成了沙漠，一切都消失了。

小朋友，以上两种未来城市你想让世界变成哪一种呢？如果想要第一种，就赶快保护环境，行动起来吧！

To Whom It May Concern,

I am writing to express my opinion about the current policy on the official holidays, such as Spring Festival and Golden Week Holiday. As you might know, some believe it is a good idea to enjoy a week-long break. For one thing, it provides enough time for people to refresh their minds and thus to have better preparations for their future work. For another, it will lead to increased tourism and in turn stimulate the development of the local economy.

Truly, the past decade has witnessed many advantages of the official holidays, but we should never ignore its disadvantages. On the one hand, it may lead to heavy traffic in that a large number of tourists go on traveling during the same Period, thus, it might cause air pollution. On the other hand, some tourists, with no awareness of environmental protection, often drop litter at random so that the scenic spots are polluted and thus it demands a tremendous sum of money to eliminate the pollution.

Considering the current grim situation, it is necessary that the authorities concerned should take immediate measures to eliminate these disadvantages. Only through these efforts can we relieve the traffic pressure and at the same time raise people’s awareness of environmental protection.

Yours sincerely,

Li Ming

Finally, it was time to be busy for two months. So I got up early and quickly packed my things to school.

The long-awaited accommodation has begun. We had long wanted to get rid of our parents, and we were so excited about the dormitory that we started to be independent when our parents left. We can live the way we want to live without our parents long-winded lessons. But obviously, were all wrong.

Our fantasy dorm life is wonderful because we didnt think about doing things on our own. In the past, we didnt know much about the word independence. It was not easy to find independence in middle school. Because we used to be too dependent on our parents, we have to get rid of this bad habit in middle school. Teachers say junior high is where you learn to be independent. So now, we have to do everything ourselves, and we cant rely on anyone else.

In the first day or two, I was not very comfortable, because the people in the dormitory were very strange, and I couldnt find the topic of chatting at first. But I was glad that I soon joined the group and got along well with them. It was a great comfort to me because my mother said that if I didnt talk to you in the dorm, it would be very lonely and very hard. But of course, in the dormitory not only to have a good relationship with students, but also to adapt to the environment here.

After a week, I have been used to our dormitory, and we have adjusted our time, and will not be able to go to bed when we are busy at the beginning of school. Dormitory of the students are very active, I cant lie on the bed again to hold pillow daze homesick, talk to mom and dad when I also learn to report good news not suffer, because we want to reassure parents cannot let them always worry. They work hard, and if I always complain to them, then I am not filial.

All in all, my dorm life is pretty good. Because I was so quick to meet a group of good friends, I was so quick to adapt to the dormitory environment. I have a good rest time to have the energy to study, which is a step in my education. So from now on, I want to work harder, cant do the best, try to do better!

i was happy on tuesday because i went to chimelong paradise with my classmates and teachers. there were 8 groups in my class and 5 people in each group. we enjoyed ourselves.

first, we went there by bus. it took an hour to get there and once we were there we took pictures in front of the gate of chimelong paradise. the pictures were very beautiful. then we went inside. first. my group went to the screaming zone. we rode the 10-inversion roller coaster. we were excited when we rode it. when the ride was over we were stiff and drank some drinks to relax. then we went to the motorbike launch coaster. it was a shock to us. we rode it twice. then we went to the 4d theater and watched an exciting movie. then we went to the drift which i thought was boring . we went to the torrent quickly after that. we were high when we rode it and decided to ride it again.

at this time we were so hungry and we looked for a restaurant to have lunch. we ordered 4 taiwan noodles and a guangzhou noodles. they were very tasty. after that, we were full of energy.we rode the small roller coaster. we were also happy to ride it. then we rode the bumper cars. that was interesting. we rode again and again. we had a nice time.

an hour later it was 3 o’clock. we went to the frog jumps. we scared when we saw it but i rode it with a bold friend. we were afraid to ride it.

at last, i went to the cake shop to buy cakes then we went back to the bus. the bus took us back to the school . we were tired in the bus. but we had a good time today.

we hope we can go there again. we enjoyed ourselves there.

My School Life

Hello! I’m a student from Class 10, Grade 7. Let me tell you something about my school life. It’s very intersting.

Classes begin at 7:50 am. I have five classes in the morning. In the afternoon, I have three classes. We study many subjects. They are English, art, history, biology and some other subjects. My favorite subject is English. It’s easy and interesting. I like P.E. and music, too. Our P.E. teacher is very funny. But I don’t like history at all. I think it’s difficult and boring.

After school, I like playing soccer on the playground with my classmates. Sometimes I go swimming. Every Tuesday and Thursday, I go to the library.

I like my school life a lot.

[我的学校生活优秀英语作文

Recently we have held a class meeting to discuss what is considered to be honorable behavior and what is shameful.It is really a pity to see all this in our school.Some students don’t respect their teachers or parents. Some don’t take their studies seriously and cheat in exams. Some throw wastes everywhere and pollute the environment . It is honorable to obey the law and rules , care much about our class and study hard.It is shameful to break school rules, to be selfish or to make little effort to achieve success.We should respect others and think more of them than of ourselves.We should work hard and make much more progress to repay the society.We should try our best to keep the environment clean。

一、Save the earth

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

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

二、Improve our environment

Good environment canmake people feel happy.To improve the environment means to qualify our life .What should we do to improve our environment

We should plant moretrees .And we should prevent those factories from pouring waste water intorivers ,lakes and fields .Whenever we see litter on the ground ,we shouldpick it up and throw it into a dustbin .Don’t spit in public places .Don’tdraw on public walls .It’s our duty to keep our earth clean and tidy .

三、Pollutionaround us

Inrecent years our life is becoming better and better.But our environment isbecoming worse and worse.It’s very bad for our life.Now many people haveair-conditioners and cars,they produce (give off ) waste gas.More and moretrees are being cut down.There are so much sand on the earth (leaving onlysand ) .We often see factories pour waste into rivers or lakes.Water in theriver is quite dirty.We haven’t enough clean water to drink in cities.Now weare in danger.It’s very necessary and important to protect the environmentwell.I think if everyone tries his best to protect the environment,the worldwill become much more beautiful ,and our life will be better and better .

四、My country life

I like to live in the countryside.I live in a small village.There is a river near it.Lots of trees are around my house.I can see a lot of farms and birds.There is less noise.The air here is cleaner and fresher.There are fewer cars.I read aloud early in the morning.When it is getting dark,the moon is brightin the sky.It’s very quiet .What a nice place I live in !

[英语作文保护环境120词

Environmental problems are becoming more and more serious all over the orld. 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 do n and aste ater is being poured continuously into rivers.Furthermore, herever e go today, e can find rubbish carelessly disposed. Pollution is, in fact, threatening our existence.

The earth is our home and e 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 ith these problems by the government. La s have been passed to stop pollution. I hope the problem ill be solved in the near future and our home ill become better and better.

I love the earth, love to the survival of our homes. Love her love her castle peak green water, green blue sky...

In the fields in the fragrance of flowers, butterfly and I play together, and laughter; In the lush forest, I chase, singing with a bird; Early in the morning, I go to on the plain with lightsome pace for an outing, mist curl up, white gauze of softly floating in the air. Suck the scent of flowers and plants, we enjoy the sun bath, I was intoxicated in the infatuated fantasy; At night, I sat in the paddy fragrance farm small courtyard, looking at the bright sky, listening to the cicadas liao, pre-pubescent, as if place oneself in a fairytale kingdom.

What a good environment! How can allow damaged?

Human technology, large discharge, endless exploitation of... Dinosaur extinction due to environment, and the human is to destroy themselves?

The historical mission to protect the environment and maintaining ecological balance cross-century generation to fall on our shoulders. Let us to love nature, love the earth, arm in arm, side by side, heart to heart to cast up a green environmental protection levee, defend the resources, protect environment, to defend the earth, to defend our beautiful homeland!

我热爱地球，热爱我们赖以生存的家园。爱她的青山绿水，爱她的碧草蓝天……

在四野飘香的花丛中，我和蝶儿一起嬉戏、欢笑;在郁郁葱葱的森林里，我与小鸟一起追逐、歌唱;清晨，我迈着轻盈的步履去原野上踏青，雾霭缭绕着、白纱般的柔柔地漂浮在空中。吮吸着花草的芳香， 欣享着阳光的沐浴，我被陶醉在这如痴如醉的梦幻里;夜晚，我坐在稻谷飘香的农家小院里，仰望着璀璨的星空，聆听着蝉鸣嘹响，蛙声如潮，仿佛置身于一个童话般的王国。

多么好的环境啊!怎能容许被破坏呢?

人类的高科技，大排放，无止地开采……恐龙因环境而灭绝，而人类却要把自己毁灭掉吗?

保护环境与维护生态平衡的历史重任要落到我们跨世纪一代的肩上。让我们都来关爱自然，热爱地球吧，手挽手、肩并肩、心连心地铸起一道绿色环保的大堤，捍卫资源、捍卫环境、捍卫地球、捍卫我们美好的家园吧!

Round hill elementary school, the schools name we all one hundred years of history is a primary school.

Together into the school, is white marble stone into three tall monument, with Confucius, Albert Einstein, leonardo Da Vinci. Walk a few steps saw with crystal glass, glass table has Einstein not statue of Lao tzu and Confucius, inspire us to study harder.

Go forward along the campus path, you will see the hallway with a row of purple vines flower, here is a row of benches, marble vault with the stainless steel frame is arched above. Spring, wisteria out new shoots, long out of the green leaves. Summer, wisteria branches grow the most flourishing, the thick layers of branches in the hot summer sun, the students to read in her arms, play. In the fall, dark green leaves like lentils out of fruit. Not carefully can-t find it? In winter, just have some leaves turn yellow slowly, wisteria winding coil on the shelf.

Behind the wisteria frame there is a piece of stone forest, giant stone like handfuls of sharp sword straight into the sky, they differ in size and shape.

This is our beautiful school!

我们的学校叫环山小学，是一所有一百多年历史的小学。

一起进校门，映入眼帘的是白色大理石砌成的三座高大石碑，上面有孔子、爱因斯坦、达芬奇。往前走几步就看见用玻璃砌成的玻璃台，玻璃台上有爱因斯坦和孔子不有老子的雕像，激励着我们更加努力地学习。

沿着校园的小道往前走，就会看到走廊上有一排紫滕花架，下面是一排用大理石砌成的长凳，上面是拱形的不锈钢架。春天，紫藤抽出新的枝条，长出了嫩绿的叶子。夏天，紫藤枝叶长得最茂盛，密密层层的枝叶挡着夏天火辣辣的太阳，同学们在她的怀里看书，玩耍。到了秋天，深绿色的叶子下就会长出像扁豆一样的果实。不仔细找还找不到它呢。冬天，才有一些叶子慢慢变黄，紫藤弯弯曲曲地缠绕在架子上。

紫藤花架的后面有一片石林，巨型的石柱像一把把锋利的宝剑一样直入云霄，它们大小不一，形态万千。

这就是我们美丽的学校!

As we all know, the environment around us is getting worse and worse more and more seriously today. Water is polluted, we have no clean water to drink. Many trees are cutting down, some animals are getting less and less. Some factories are pouring dirty air into the sky. The population is increasing faster and faster, resources are getting less and less…etc. Not only does it affect our lives and health, it also has a great affection in the future. People’s health has been greatly affected by air, noise and water pollution. Many people died of diseases. In order to live a better life, something must be done to stop the pollution. It’s our duty to protect our environment. We shouldn’t throw away rubbish everywhere. Trees are very helpful and important for us. We should plant more and more trees in order to live better and more healthy in the future.

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

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.

导语：关于环境保护的英语作文怎么写?以下是小编精心为大家整理的有关关于环境保护的英语作文，希望对大家有所帮助，欢迎阅读。 关于环境保护的英语作文1

There are more high-rise apartment buildings built in the city we live to accommodate more city dwellers. To make room for these constructions, a large number of trees are cut down. We have to be constantly afflicted with the noise and air pollution everyday. Obviously, we are paying the cost of the development.

Even the most developed countries are troubled with environmental issues. In fact, the more developed the country is, the severer the problem has. To maintain our economy prosperity and stability, we have to be in full operations and spread the workload in industry fields. As a result, we may seek temporary economic development at the expense of the environment and resources. The consumption of natural resources has been a big problem. It is admitted that the world economy is booming with the satisfaction of environment. However, we have made a blunder by equating material prosperity with better living standards.

A better life should be a life closer to nature. The modern lifestyle is best characterized by hectic, mass-productive and seemingly comfortable. But actually something originally natural and invaluable has been lost. We are no longer able to breathe fresh air, take a walk in the woods or even look at the stars in the sky as the stars are obscured by smog and artificial lights.

Hence, we need to curb the quick tempo of life in order to protect our environment and ironically improve our life. Science and technology thus should be employed to create a harmonious relationship between mankind and nature. A better environment means much more than material comforts. Besides, by slowing down a little bit, our life would turn out to be less stressful. To have a better life, we need take effective measures right now.

The current environment damage stems from the misguided conception that material wealth is equivalent to a better life. In reality, environmental protection serves as the catalyst of our very pursuit of better life rather than a deterrent 关于环境保护的英语作文2

Many people believe that we have developed into a “throw-away society” which is filling with plastic bags and rubbish. What do you think?

Wind blows up bags higher and higher in the sky. It is a scary thought that some day the earth will turn into a huge garbage land. Wastes, if not treated properly, will make our life a living nightmare.

The environmental issue is getting worse almost every day in cities with very large population. As is often the case, city development outpaces environmental protection. People consume great amount of natural resources and produce wastes. To effectively address such problems, cities need to spend big money. In addition, they need to call to the attention of people to become more environmentally responsible.

Many people are becoming less responsible and easily influenced by bad behaviors. “Why should I care while others shouldn’t?” Such idea makes some people only concern with places where they live and work. Furthermore, people sometimes even purposely litter for revenge to other people.

Although media promotes environmental awareness, good people are often snubbed as posers who try to set up a superior image in real life. Consequently, they are intimated of receiving negative comments for doing the right thing. Wrong as it is, such phenomenon is widespread especially among youngsters and people with low income and little education.

However, our society is waging a campaign against environmental pollution. People learn the harms of un-degradable lunch boxes and other polluting wastes. Laws in many countries prohibit or limit excessive use of polluting bags. Companies are continually replacing the old materials with more environmental friendly and recyclable kinds. Scientists have developed more effective technologies in waste treatment. As time goes by, more and more people put high priority on the protection of environment for a healthier life.

To sum up, people produce huge amount of garbage and the environment is seriously polluted because of lack of financial resources, sense of responsibility, or efforts. But the world will not turn into a “throw away” society if people put in sufficient efforts to protect our environment

My school

I am Alice. I am a student of No.1 Middle School. I study in Class Two Grade Seven.

There is a map of our school on the wall. The playground is in the middle of the school. On the left of the playground, there is a library. I like reading very much, so I often read books in the library. There is a teaching building behind the library. We study in that building. My classroom is on the second floor in that building. The teachers offices are in that building, too. Where is the sport hall? Oh, its on the right of the teaching building. I have P.E class in the sport hall. Thecanteenis in front of the sport hall. We have lunch and dinner in the canteen. In the school, I feel very happy!

This is my school. Its a big and nice place. I like my school very much. What about your school?

作文翻译：

我的学校

我是爱丽丝。我是一中的一名学生。我在七年级二班。

墙上有一张我们学校的地图。操场在学校的中间。操场左边是图书馆。我非常喜欢阅读，所以我经常在图书馆里看书。图书馆后面有一座教学楼。我们在那栋楼里面学习。我的教室在二楼。教师办公室也是在那栋楼。体育馆在哪里呢?噢，在教学楼的右边。我在体育馆上体育课。食堂在体育馆的前面。我们在食堂吃午饭和晚饭。在学校，我觉得很开心!

这是我的学校。是一个又大又漂亮的地方。我非常喜欢我的学校。你的学校是怎么样的呢?

度过了长达两个月之久的充实的暑假，我们迎来了新的学期。在新的学期里，我们将要学习新知识，认识新同学，熟悉新的环境……而我，也将和我一起生活了四年的胜山镇中心小学告别了，将在浒山的阳光实验学校学习与生活。

在与胜山镇中心小学告别后，我迈着轻盈的步伐，怀着激动的的心情向阳光实验学校出发。在我迈进新学校大门的那一瞬间，我就感觉从一个世界进入了另一个世界，在这里，我将开始我新的生活。在上楼时，发现每一根柱子上都有字、画。一根柱子就像一位老师。这些“老师”每一个都亭亭玉立，时刻激励着这个学校的学生前进。

不一会儿，我就进入了505班中，看着坐在椅子上的一张张陌生的面孔，我此时此刻的心情十分激动：这些就是我的新同学，也是将要和我一起玩耍，一起学习的好伙伴。当我坐在指定的位置上时，站在讲台上那个和蔼可亲的女老师吸引了我的眼球，她就是我们的班主任——赵老师。赵老师和其他各科老师将在这之后教给我们许多知识，用他们那辛勤的汗水来哺育我们这些祖国的花朵。

新学校，新的环境，虽然我是从胜山镇中心小学转过去的，但是，我会更加用功，更加努力，使自己尽快融入到505班这个集体，使自己尽快适应这里的生活环境。

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)

How tokeep healthy /fit?

All of us want to be healthy. First，we should get enough sleep during the night. We can go to bed early and get up early. Staying up late is bad for our health. Second，we must have the right kinds of food. We should eat more fruit and vegetables and less meat. We should drink a lot of water. We should have healthy eating habits. Third，we should do more exercise to build up our bodies. Finally，we should be happy everyday. Because smile will make us younger。

That is my advice.I hope you are healthy and enjoy your life。

2.卫生健康饮食：健康一直是人们关注的问题我校要举行以“关爱健康”为题的主题班会，请根据下表内容谈谈你的看法，写一篇80字左右的演讲槁。 (1)保持健康的重要性;(2)保持健康的方法;(3)保持健康的结论;(4)你的看法。

How to keep healthy /fit?

Here is my advice about how to keep healthy/fit. As a middle shool student. first youd better do more exercise such as playing ball games ，running， swimming and jumping ropes(绳子)。Then you should pay attention to your diet or meals. Dont eat too much meat or suger，but more vegetables and fruit.Third you need enough sleep or rest . Next keep yourself happy.As people often say smiling makes younger.Last you mustnt drink wine or smoke .They are bad for your health. That is my advice.I hope you are healthy and enjoy your life。

We should take good care of the environment, protect the nature.

The earth is the only place we live, is our home. We cant because at that time the interests and her dishes in our hands. Now the earth is in danger, forest fewer and fewer birds, beautiful natural environment is missing, Bridges oxygen to feed the fish in the river without artificial is about to turn over the pool. Now more dust storms, epidemic, fatigue life of people ended almost disappeared, all kinds of cancer eating away at the us one after another of the earths people.

Back to the old people say the water bridge the somebody else, charactizing a fine spring day, how nice. Now you are "small garden path alone wandering" thats impossible.

Have seen such a report: the Japanese popular a kind of "pain pain disease", no root, for passive house got the disease will be walked into the underworld. At that time, Japan was the panic in the medical community, chasing the SuoYuan, chase ever discover Japanese like to eat fish, the fish love to eat garbage pollution, garbage pollution is Japanese poured into Japan into the sea. From this story, we dont speak Japanese, but should get some enlightenment, the deterioration of environment is referred to in a long-term accumulation, is also caused by everyone involved. Blessing is everyone to leave, a curse is everyone leave, this isnt a person. So take good care of the environment, everyone duty, protect the natural, leave the offspring.

Now I am going to call for everybody, we each member of the earths, let us act now! Good care environment, protect the natural, leave f offspring!

我们要爱护环境，保护大自然。

地球是我们人类唯一赖以生存的地方，是我们的家园。我们不能因为一时利益而将她断送在我们手中。现在的地球危在旦夕，森林少了，小鸟少了，美丽的小桥流水的自然环境不见了，河里喂鱼没有不人工供氧就要翻池了。现在沙尘暴多了，流行病多了，劳累一生的人们颐养天年的几乎不见了，各类的癌症蚕食着我们一个又一个的地球人。

回想老人们说的小桥流水人家、鸟语花香天下，是何等的惬意。现在你要“小园香径独徘徊”那也是不可能了。

曾见到这样一个报道：日本流行了一种“痛痛病”，查无根，找无源，得了该病就要走进阎罗殿。当时日本医学界真是着了慌，追本索源，追到底发现是日本人爱吃鱼，日本鱼爱吃污染垃圾，污染垃圾是日本人倒进日本进海里的。从这个故事中，我们不说日本人该死，而应得到一点儿启示，环境的恶化是人们长期积累所指的，也是人人参与所致的。福是大家留的，祸也是大家留的，这不是一个人的事。所以爱护环境，人人有责，保护自然，留福后代。

现在我要呼吁大家，我们地球上的每一个成员，愿我们立即行动起来吧!爱护环境，保护自然，留福后代!

There is no doubting the great benefits which scientific advances have brought us 。 Yet we have become increasingly aware that some technologies’ developing brings unexpected and harmful side effects 。

A number of factories spring up like mushrooms ，exhausting much waste gas ， which leads to the greenhouse effect and air pollutions 。 Plentiful trees are cut down that causes the lands to change into the deserts 。 At the same time ， varieties of species are gradually extincting 。 These phenomenons give us clear warnings of the dangers of failing to live harmony with nature 。

We ought to set up a profound mind to protect our environment 。 For the governments ，they should make detail laws and policies to observe the behaviors of destroying the environment 。 Factories should exhaust polluted water or gas after dealing with rather than merely pursue the economic interests 。 Planting as more as possible trees ， in case of the water and soil erosion 。 For farmers ， they must reduce spraying the insecticides 。 We also must make less use of plastic materials and one—off products 。 In addition ， we wouldn’t throw the rubbish anywhere 。 Thus ， we at least can maintain our environment in a good state 。 However ， that’s not enough 。 We are supposed to work harder to protect our environment 。

[英语作文怎样做到保护环境