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学校环境问题英语作文合集2篇 作文怎么写(合集20篇)

让我们一起来保护地球的环境吧!下面是小编为您推荐的作文:

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学校英语词

全文共 436 字

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My school is very big and beautiful.There is a big playground and a big

garden are behind our teaching buildings. the garden is very beautiful.There are

about 2000 students and more than 200 teachers in my school.my teachers are very

kind and friendly.they are very kind to us,they often help us with our study.I

have many good friend.we often play togeter ,I have a great time in my school.we

are happy every day.I like my school very much.

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更多相似作文

篇1:关于学校环境保护的建议书450字

全文共 449 字

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尊敬的老师,亲爱的同学们:

大家中午好!

不知道大家有没有留意,近几年学校环境在变坏,草儿在哭泣,花儿在流泪,墙在生气,地板在抱怨……这是为什么呢?这全是因为我们自己呀!有的同学不理睬“草儿青青,脚下留情”的告示牌,在草地上任意行走。有的同学看见小花很漂亮,随意就把它摘走,痛得小花流下了眼泪。还有的同学在教室的墙上画来画去,原来洁白美丽的墙变成了大花脸。有的同学还把鞋子上的脏东西,踩到地板上,把干干净净的地板踩得十分肮脏。

看到这些情景,我非常的痛心,所以我对大家提出一些小建议:

第一,不要践踏草坪,小草也有生命,如果你和小草交换生命,小草踩你,你会开心吗?

第二,不要随意采摘小花,因为小花也是有生命的,它也知道痛。

第三,不要在墙上画来画去,你在墙上画时很开心,但是要把它们清理干净,却很费力。请大家要为保洁阿姨想一想。如果发现有人在墙上乱涂乱画,就请他立刻清理干净。

第四,希望大家注意教室环境卫生,随时清洁,不让教室太乱太脏。

最后,请各位同学能够一起努力,爱护我们的校园,不破坏我们的环境。

王嘉慕

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篇2:2024高考关于环境保护英语作文

全文共 1167 字

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The environmental protection is the most major problem which in the modern life the humanity faces. Must solve this problem must start from foundation. First, must massively propagandize, enhances peoples consciousness with understanding, strengthens the environmental protection consciousness. Next, must carry on waste recovery use, reduces to forest-trees felling. Also must strengthen to white pollution processing, little uses the plastic product. Finally, must make improvement to clean aspect. Causes the citys appearance to be neater. For Earths tomorrow, we must start from the now diligently, will want the well local constable to protect the environment. To this us proposes as follows suggests: Implementation trash classification packed in bags. Like this not only can reduce the environmental sanitation workers work load, but also can even better basically arrive makes use of waste, to reduce the pollution, saves the resources.

环境保护是现代生活中人类所面临的最主要问题。要解决这个问题必须从基础做起。首先,要大量宣传,提高人们的意识与理解,加强环保意识。其次,要进行废物回收利用,减少对森林树木的砍伐。还必须加强对白色污染处理,少使用塑料制品。最后,必须改善清洁方面。使城市的外观整洁。为了地球的明天,我们必须从现在开始努力,将希望和当地的警官保护环境。为此我们提出如下建议:实施垃圾分类袋装。这样不仅可以减少环卫工人的工作量,而且可以更好的利用废物,减少污染,节约资源。

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篇3:关于环境污染英语作文最新

全文共 1493 字

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There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.

To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.

In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.

仍有许多问题近年来环境保护。最严重的问题之一是严重污染的空气、水和土壤。空气污染给人们的健康带来极大的危害。被污染的水会引起疾病和死亡。更重要的是,植被已大大减少,现代城市的快速增长。

为了保护环境,许多国家的政府已经做了很多。介绍了立法措施控制空气污染,以保护森林和海洋资源,制止任何环境污染。因此,政府在环境保护中扮演最重要的角色。

在我看来,为了保护环境,政府必须采取更具体的措施。首先,它应该让人们充分认识到通过教育环境保护的重要性。第二,更应努力把人口计划生育政策付诸实施,因为更多的人意味着更多的人意味着更多的污染。最后,那些故意破坏环境者的人应该受到严惩。我们应该让他们知道破坏环境就是毁灭人类自己。

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篇4:英语作文:人类活动破坏了环境

全文共 2204 字

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Some people believe that the Earth is beingharmed(damaged) by human activity。 Others feel that human activitymakesthe Earth a better place to live。 What is your opinion?Usespecific reasons and examples to supportyouranswer。

People have been living on the Earth for thousands of years。Humanactivity influences the Earth。 Some people believe that theEarth isbeing harmed by human activity。 Others feel that humanactivitymakes the Earth a better place to live。 In my opinion, theearth isbeing damaged by human activity。 There are manystatementssupporting my opinion。

Human activity has damaged natural environment and almostexaustednatural resources。 Modern industry needs more and moreresources,including minerals, fuels and water。 So we confront ofthe seriousproblems such as the lack of fuels and water。Ecological balance isdamaged because factories occupy many placeswhere animals andplants live。 More and more buildings areconstructed and forestsbecome less and less。 If we cannotrecognize these problems andsolve them soon, we would finally losethe environment suitable forour living。 An other serious problem is the green-house effect。

Humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it。 The green-house effect is moreobviousand more sensible these years。 Due to the effect, icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before。 I am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect。 Although we have advanced machines and our life seemsmorecomfortable than before, we have less chances to approachnaturesand less spaces to act。 The cities become bigger and if wewant tohave a picnic with our friends, we have to drive a longdistance tofind a natural place。 In fact, the spaces of humanactivity arebeing damaged by the skyscrapers and factories。 From the above statements, we can conclude that humanactivitybrings the Earth many damages。 Fortunately people haverecognizedthe point and I believe that the Earth will become abetter placeto live with our ceaseless efforts。

[英语作文:人类活动破坏环境

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篇5:我的学校初中英语作文

全文共 705 字

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1.你的学校位于什么地方

2.校园景色如何

3.你对同学和老师们的感受如何

4.请谈谈你对你学校的感觉等..

(在哪自己写吧).First here is our favourite place our beautifui garden many trees and many flowers in it. then you can go into it .Now,you know why we love it right .we can write red and chat in it.(tell you a secret:I like it because it is cool in summer and warm in winter

Now,I will tell you more about my friends &teachers. Over here teachers are friendly to us,so we never say a bad word about them.Because of these,students can get good grades at my school.(Would you like to come?)

I think my school is one of the best schools in the world.Because we have good teachers good students and everything is beautiful. I like it, every at it likes it.

[我的学校初中英语作文

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篇6:初中关于保护环境的英语作文

全文共 1694 字

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Now, "environmental protection" has become a global focus. But to truly protect the environment, we must start from ourselves and start with the small things around us.

One day, I went to play in the small river in the park. A little boy wanted to throw a fresh bottle into the river. I looked at it and said, "no matter what, Im going to play. If I take care of him, I wont be able to play." But at this time, one is old man on a fishing trip saw the little boys behavior quickly held out his hand to stop a small boy, and said to the boy: "child, dont throw rubbish into the river." The little boy listened and put down the bottle and said to the old man, "whats the big deal? Besides, this is a bottle, not a garbage." The old man listened and was not angry. Smiled and said to the boy, "son, you dont understand. You dont see it as a bottle, but it will also be like other garbage pollution water. We cant drink clean water. Moreover, the trash can is over there, a few steps away." The little boy was speechless to the old man. He said "thank you" to the old man and ran to the trash can.

I listened to that thought, "thats right. When we want to throw fruit peel, tend to throw the rubbish casually into the trash can outside, and ignored. In fact, as long as you stretch out his hand, will be thrown into the trash can. Sometimes, you can throw some wrapping paper with a, then a walk it. Later, you said cant find the trash can. In fact, trash can in a few steps away." These little things can reflect a persons moral character and whether he loves the environment around him.

Protect the environment. Its all about us. Everyone has to do their part. This will make our home more colorful!

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篇7:初二寒假英语日记:未来的学校

全文共 392 字

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Everyone should go to school,But there are many diffierent school,Here is my drean school. In that school,there is no teacher.Many robots can teach you about your lessons,YOU neednt take books with you ,you can use your computer.My school had better have an amusement park.because if we are tired ,we can have a good time here.IN the future ,students will have a more wonderful time than now.

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篇8:改善环境的英语作文

全文共 416 字

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There are many ways to improve our environment.

First,control the number of vehicles.More vehicles,more air pollution.

Second,plant more trees to clean the air and improve the land.

Third,control the use of the electricity and power to bring down the production of carbon.

Fourth,people should eat more vegetables and less meat to keep low carbon.

Last but not least,protect the animals to keep the balance of the nature.

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篇9:爱护环境的学生英语作文

全文共 2149 字

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目前环保还存在着许多问题。最严重的问题就是空气、水和土壤的严重污染。污染的空气对人类的健康十分有害。污染的水引起疼病,造成死亡。更有甚者,随着现代社会的迅速扩建,植被大大的减少。以下是小编为大家整理分享的爱护环境学生英语作文,欢迎阅读参考。

爱护环境的学生英语作文

Now, our side of the car constant more up, the environment also increasingly worse! That the air around us there are many harmful substances。 Therefore, we want to Sue around things start to do。 For example, we can go to school by bike or walk, it can exercise。 If you have time can use less elevator, many climb stairs。 We can not only physical exercise, but also to protect our environment。

此刻,我们身边的汽车不断的多了起来,环境也越来越糟糕!以至于我们周围的空气有很多有害物质。所以,我们要苏身边的小事做起。比如,我们能够骑自行车上学或者步行,这样还能够锻炼身体。有时光的话能够少用电梯,多爬楼梯。我们不仅仅能锻炼身体,也能保护我们的环境。

爱护环境的学生英语作文

There are still many problems of environmental protection in recent years。 One of the most serious problems is the serious pollution of air, water and soil。 the polluted air does great harm to people’s health。 The polluted water causes diseases and death。 What is more, vegetation had been greatly reduced with the rapid growth of modern cities。

To protect the environment, governments of many countries have done a lot。 Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution。 Therefore, governments are playing the most important role in the environmental protection today。

In my opinion, to protect environment, the government must take even more concrete measures。 First, it should let people fully realize the importance of environmental protection through education。 Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution。 Finally, those who destroy the environment intentionally should be severely punished。 We should let them know that destroying environment means destroying mankind themselves。

保护环境

目前环保还存在着许多问题。最严重的问题就是空气、水和土壤的严重污染。污染的空气对人类的健康十分有害。污染的水引起疼病,造成死亡。更有甚者,随着现代社会的迅速扩建,植被大大的减少。

为了保护环境,各国政府做了超多的工作。采用了立法措施控制大气污染,保护森林资源和海洋资源,制止任何环境污染。因此,在当今的环保中政府起着最重要的作用。

我的看法是,为了保护环境,政府应当采取更具体的措施。首先,应当透过教育的方法使人们充分謒到环境保护的重要性。第二,应更加努力把计划生育政策付诸实施,因为人口多就意味着污染严重。最后,要严惩那些故意破坏环境者。使他们破坏环境就是毁灭人类自我。

[爱护环境的学生英语作文

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篇10:小学一年级英语作文:保护环境

全文共 634 字

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Our environment is getting worse and worse now. People throw their garbage here and there. Factories make more and more dirty water that has polluted the rivers and lakes. What should we do?

We must find ways to stop pollution. Waste water must be cleaned before it is poured into the river. People shouldn‘t throw away rubbish here and there. We should pick up the garbage around us. We‘d better plant more trees.

I‘m sure if we take care of our environment, our world will be more beautiful!

现在我们的环境越来越糟。人们把他们的垃圾这里和那里。工厂使越来越多的脏水污染了河流和湖泊。我们应该做些什么呢?

我们必须找到方法来制止污染。废水必须清洁之前倒进河里。人们不应该到处扔垃圾。我们应该捡起身边的垃圾。我们最好种植更多的树木。

我相信如果我们照顾我们的环境,我们的世界将会更美丽!

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篇11:安全问题的英语作文

全文共 676 字

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Safety is very important. We often hear people say “safety first”. As a middle school student, we should learn to protect ourselves from every possible danger. Here are some things I do. I hope you can follow them.

On your way to school and home. You should obey the traffic rules. You should walk on the right side of the road. Don’t ride your bike too fast.

During school, you can’t fight with each other. Don’t play with fire. Don’t bring knife to school. Don’t go out of school without your teacher’s permission.

When you are at home, remember not to ask the door for strangers. Don’t give your home address, phone number or personal information to anybody else too casually.

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篇12:一年级保护环境的英语作文

全文共 1567 字

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我们的祖国虽然资源、物产比较丰富。可是,你知道吗?光光这些都还不够,更重要的是要注重环保!

Although our motherland is rich in resources, products. But, you know? Only these are not enough, it is more important to pay attention to environmental protection!

我觉得,政府应该多多提倡环保,多多参与环保工作,为环保做贡献,组织好环保是最关键的。你们说,是吗?

I think, the government should take to promote environmental protection, actively participate in the environmental protection work, make a contribution to protecting the environment, organization of environmental protection is the key. You say, yes?

首先,应该告诉市民,要关注每一件环保的事,积极做环保工作,不要随手扔垃圾、看到垃圾要及时捡起。其次,要把废旧电池该扔哪的问题解决好,应该把这件事给做得更完善:在一些地方分放一些回收废旧电池的筒,每天都有专门负责的人去取。这样一来,不管是住在偏远地区,还是住在热闹的地方,都可以很方便的把废旧电池处理了,再也不会发生人们不知道废旧电池怎么处理,就把废旧电池扔进垃圾箱里的事了。最后,政府应该增加一个环保工作者的职务,让更多的人投身于环保工作当中!

First of all, should tell the people, pay attention to every green thing, to do environmental protection work, do not readily throw garbage, garbage to pick up see. Secondly, to throw the waste batteries which to solve the problem, should put this thing to do better in some places put some recycling waste batteries, cylindrical, every day there are responsible for people to get. In this way, whether it is to live in the remote areas, or in the bustling place, can be very convenient to the handling of used batteries, and it wont happen again and people dont know how to deal with the waste batteries, waste batteries thrown in the garbage again. Finally, the government should increase a environmental protection worker job, let more people involved in environmental protection work!

为了环保,行动起来吧!

To be environmentally friendly, action!

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篇13:一年级环境保护英语作文带翻译

全文共 2706 字

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First of all, let me tell you a true event. That is my grandpa with me by boat from yichang to three gorges occurs when one thing.

We all got up that morning, the people on board, is preparing to play water to wash shu. But the faucet for half a day on the boat were down only a few drops of water, one asked, originally is the boat ran out of water! So, we only have stood in long lines, slowly, etc. Although I looked at the ship, the ship under a stream of water, but no one would like to use it. Because the water is so dirty, so HunHuang, who dare to use? Line only slowly, slowly, etc!

Although in the high-speed development of science and technology nowadays, but the impact on our environment. Reduced river pollution, air pollution, the trees, the increasing of the desert... All this is all thanks to the human! Countries while in value, although the world in value, environmental protection, what and how much these things figure up attention? In my opinion, is rare. Although countries in so to speak, but whats the use of words and not of deeds? Did just a few, too! Dont grab from main reason! You see, the Yellow River water is not still contaminated? So the factory does not still pollute the atmosphere? Should grasp, starts from the quality of people, quality grab, but the country and the world to do so? No! Just like to do even when you are done. In the polluted environment is not so?

Animals are extinct, flash floods in explosion, dust storms still exist... It fully shows the environmental pollution! Countries will only go to disaster relief, instead of simply grabbed, will only go to disaster relief, whats the use? Dont all kinds of disaster is still in? We should like lu xun. He had become a is in order to save the Chinese, and he found that it will not solve the fundamental, so he became a writer, to save the people of the spirit. Because this is the fundamental! So, we as the master of the 21st century, you should understand, what is the root of the damage to the environment, from the point to solve it. Work hard -- the 21st century we!

首先,我先给大家讲一个真实的事件。那是我随我的外公从宜昌坐船前往三峡时发生的一件事。

那天早晨,船上的人都起来了,正准备打水洗淑。可是船上的水龙头半天也只下来几滴水,一询问,原来是船上的水用完了!所以,大家只有排着长长的队伍,慢慢的等。我望着船下,船下虽然有着流不尽的江水,但却没有一个人愿意来使用它。因为江水太脏了,是那么的浑黄,又有谁敢去使用呢?只有慢慢的排队,慢慢的等!

如今科技虽然在高速发展,但这影响到了我们的环境。河流污染,大气污染,树木的减少,沙漠的增多……这一切的一切都是拜人类所赐!国家虽然在重视,世界虽然在重视,什么环境保护日,这些事又有多少人影起了注意呢?在我看来,是极少的。国家虽然在这么说,可是光说不做又有什么用呢?做了也只是少数罢了!根本没有从主要原因抓起!你看,黄河的水不是还在被污染吗?工厂不照样还在污染大气吗?抓,就应该从小抓起,从人们的素质,品质抓起,可是国家乃至世界这么做了吗?没有!即使做了也只是做样子罢了。环境不是照样还在被污染吗?

动物还在灭绝,山洪还在爆发,沙尘暴照样存在……这都充分说明了环境还在污染!国家只会去赈灾,而不去根本抓起,只会去赈灾,这又有什么用呢?各种灾难不还是照样在发生吗?我们应该像鲁迅一样。他当初从医是为了拯救中国人,而他发现,这解决不了根本,所以,他当了作家,去拯救人们的精神。因为这就是根本!所以,我们作为21世纪的小主人,就应该明白,什么是破坏环境的根本,从要点去解决它。努力吧――21世纪的我们!

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篇14:形势与政策论文:城市水环境的问题探讨

全文共 3055 字

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我国的城市河流和湖泊污染情况是非常严重的,城市河流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)

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篇15:一次学校组织的旅游英语作文

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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。

[一次学校组织旅游英语作文

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篇16:环境保护英语作文50字

全文共 567 字

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Everyone can do something for our environment. For me, I should try to save electricity in my daily life. For example, if I am the last person leave the classroom in the evening, I will always remember to turn off the lights. In order to protect our forests, I will use paper wisely. I should try to use both sides of paper whenever it is possible. I will not use things like paper cups and disposable chopsticks because they are made of wood. I believe that doing all these small things will improve our environment and help make our world a better place to live in.

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篇17:环境污染现象英语

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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.

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篇18:人类破环了环境优秀六级英语作文

全文共 1963 字

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people have been living on the earth for thousands of years.humanactivity influences the earth. some people believe that theearth isbeing harmed by human activity. others feel that humanactivitymakes the earth a better place to live. in my opinion, theearth isbeing damaged by human activity. there are manystatementssupporting my opinion.

human activity has damaged natural environment and almostexaustednatural resources. modern industry needs more and moreresources,including minerals, fuels and water. so we confront ofthe seriousproblems such as the lack of fuels and water.ecological balance isdamaged because factories occupy many placeswhere animals andplants live. more and more buildings areconstructed and forestsbecome less and less. if we cannotrecognize these problems andsolve them soon, we would finally losethe environment suitable forour living.an other serious problem is the green-house effect.humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it. the green-house effect is moreobviousand more sensible these years. due to the effect, icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before. i am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect.

although we have advanced machines and our life seemsmorecomfortable than before, we have less chances to approachnaturesand less spaces to act. the cities become bigger and if wewant tohave a picnic with our friends, we have to drive a longdistance tofind a natural place. in fact, the spaces of humanactivity arebeing damaged by the skyscrapers and factories.from the above statements, we can conclude that humanactivitybrings the earth many damages. fortunately people haverecognizedthe point and i believe that the earth will become abetter placeto live with our ceaseless efforts.

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篇19:我的学校英语MySchool

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School are students second home.Every stuent loves their school.I like my school very much.My school is very great.Lt is the best school.My school taught mang excellet students.Five years ago,my school is simple and crude.There is only few students in our school. Now,our shool is beauiful.There are more than 5 thousand students.Equipement is very abundant.We can surf the Internet now.

I love my school.Myschoolwelcomes you.

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篇20:学校周边环境问题作文

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我是四(1)班的一名学生,因近日来从电视上看到生活周边的一些人破坏环境,并看到有关资料知道破坏环境的危害性,便非常愤恨。

我曾听过这么一件事:某工厂的老板为了省钱就把工厂里带有有毒物质的水排放进附近的江里,但他没想到这江水是工半个城市居民的,而导致半个市的市民都中毒,住进了医院,有百分之20的居民因抢救无效而死亡,最终,这位黑心的老板受到了法律的制裁。你能想象得出这种景象吗?:那百分之20因喝了有毒的江水而抢救无效而死的人们,他们家的孩子、妻子和老人都靠他们的爸爸或丈夫养活全家,却喝了江水而死去,随之他们的家庭因此而越来越贫穷。

这一件事都表明了环保的重要性,所以请大家保护环境,共同把我们赖以生存的家园建设得更美好吧!

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