与环境污染有关的英语作文(精品20篇)
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761环境污染小学
全文共 570 字
+ 加入清单在我的家乡,人们大都没有保护环境的意识和习惯,导致生活环境十分糟糕。
先说房前屋后吧。很多人不懂得植树种花,到处是一片片空地。这样一来,夏天的中午,就算站在屋檐下,也像在蒸笼里,直感到热浪袭人;南洋风吹来,到处是尘沙飞扬,行人的眼睛都难以睁开。要是房前屋后都有郁郁葱葱的大树和花圃,浓荫如盖,花香四溢,太阳也不会这么毒辣,沙尘也不会这么张狂,景色明朗如画,空气清新甜润。
再说公路和河道吧。很多人乱扔乱丢、乱排乱放,走在路上,随处可见方便碗,连树枝上也挂着方便袋;河坡上污水横流;河面上漂浮着死鸡死猫死狗,河水都被染黑了,散发着一阵阵恶臭。要是公路上每个几十米有个垃圾桶,人们也都讲究公共卫生,那么,公路上一尘不染,河坡上明净整洁,河水清澈见底,水草悠悠,鱼儿游玩,人们会感到爽心悦目。
接下来说树林和沟渠吧。很多人不懂得保护野生动物,有的在树林里布设鸟网,捕杀鸟类;有的背着电瓶,电击青蛙,导致庄稼虫害严重,影响粮食产量。很多人不懂得回收农药瓶,打完农药后,药瓶随意丢弃在沟渠,瓶里的残留农药污染沟渠,人吃了带毒的鱼虾,就会生病。
要是注意保护有益动物,我们就会有一个鸟语花香的世界,“稻花香里说丰年,听取蛙声一片”,那该有多好啊!所以说,要想提高我们的生活质量,过上美好的幸福生活,我们要推行植树种花,形成卫生习惯,保护野生动物,维护生态环境。
更多相似作文
篇1:关于环境保护的优秀英语作文
全文共 1119 字
+ 加入清单man and environment (人类和环境)
(1)the world we live in is becoming more and more intolerable because of environmental destruction.
(2)a lot of measures have been taken …
(3)however, the problem of environmental protection remains far from being solved.
the world we live in is becoming more and more intolerable because of environmental destruction. for example , forest destruction results in decrease of planting land and unpleasant weather. in addition, man is faced with problems of water pollution and air pollution.
a lot of measures have been taken. planting trees helps improve and beautify the environment. besides, laws concerning environmental protection have been put into effect and achieved good results.
however, the problem of environmental protection remains far from being solved. on the one hand, the environment pollution and destruction are getting worse and worse in the modern world. on the other hand, the lack of knowledge about the importance of protecting environment hinders the solving of the problem. in a word, there is a long way to go before we enjoy a clean and comfortable world.
篇2:2024年6月中考英语作文预测:环境保护
全文共 1613 字
+ 加入清单Life, environmental pollution continuously affects our lives. Such as: polluted air, rivers and garbage pollution, etc., has seriously damaged our living environment.
Rivers are polluted, the creature will not be able to survive in the water, also cant use it to irrigate crops, the human will not eat fresh food. If same, groundwater contamination, people will drink less than clean water, humans will get sick, poisoning, and it may even die. So, no one should be put on the possible environmental pollution of waste into the river.
Air is a guarantee to the survival of all living creatures. If the air is polluted, all creatures will live in the "gas", disease and all kinds of disasters will be the humanitys greatest enemy. Last, mankind will perish. Visible, clean air is how important!
Garbage can be seen everywhere in our daily life, the visible human bad habits - littering behavior is really too serious. Random pile up garbage can cause great harm to the environment, such as: air pollution in a breeding ground for germs, sexually transmitted diseases, and river and so on.
The pollution was terrible! To prevent the pollution, we must care for the environment, protect the earth, to stop all the pollution of the environment.
生活中,环境污染不断地影响着我们的生活。比如:被污染的空气、河流和垃圾污染等等,已经严重地破坏了我们的生活环境。
河流被污染了,水中的生物将无法生存,也不能用它浇灌庄稼,人类将吃不到新鲜的食物。同样,地下水如果被污染,人们将喝不到洁净的水,人类将会生病、中毒,甚至可能会死亡。所以,任何人都不应该往河里投放有可能污染环境的废弃物。
空气是所有生物赖以生存的保证。如果空气被污染了,所有生物将会生活在“毒气室”一样的环境里,疾病和各种灾难将会是人类最大的敌人。日久天长,人类就会灭亡。可见,洁净的空气是多么重要啊!
垃圾在生活中随处可见,可见人类的坏习惯——乱丢垃圾的行为实在太严重了。随意堆放的垃圾会对环境造成很大的危害,例如:滋生病菌、传播疾病、污染空气以及河流等等。
这些污染真是可怕呀!要预防这些污染,我们一定要爱护环境,保护地球,制止一切污染环境的行为。
篇3:保护环境的英语作文
全文共 2228 字
+ 加入清单In recent years, many nations have bee more aware of the environmental issues each nation faces, such as air and water pollution。 The question is, are the environmental issues a national problem or an international problem? It is my belief that the environmental issues have grown to the point of being an international problem needing international cooperation to resolve。
Because of the differences in environmental policies, resources and technology, international cooperation could provide quicker results and have a greater impact on bringing resolution to environmental problems for nations of differing environmental policies and of lesser resources and technology。 By pooling international resources and technology to address the environmental problems, the disadvantaged nations are provided the assistance needed。 Otherwise their environmental conditions deteriorate ultimately affecting the resources and environment of the world as a whole。
One of the difficulities to an international resolution to environmental issues is the difference in individual nations view and policies toward environmental protection。 In order for international cooperation to occur and succeed, the nations of the world must submit themselved to international standards and supervision by an international mission elected by the participating nations of the world。 All members must agree to abide by the standards established。
The environmental issues facing each country are not unrelated to the well being of the rest of the world。 The impact is long term and international in scope。 Without international cooperation and agreement to address such environmental issues as glacial melting at the South Pole, depletion of the ozone layer, water pollution, air polution, etc。, the environmental conditions of the world will deteriorate to the detriment of every nation, not just those that ignore or lack the resources and technology to resolve their individual environmental problems。
As part of the same planet, it is the responsibility of each individual and nation to protect the global environment。 Only international cooperation will provide the timely solutions and the effectiveness needed to stop the deteriorating global environment。
篇4:保护环境的英语优秀作文
全文共 1305 字
+ 加入清单导语:我们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。下面是yuwenmi小编为大家整理的英语作文,欢迎阅读与借鉴,谢谢!
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.
【参考译文】
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。
篇5:描写校园环境英语作文
全文共 1082 字
+ 加入清单The school, is the world of knowledge, the school, is our friends paradise, it provides us a healthy and beautiful learning environment.
Let me introduce our school. Once inside the school gate, two rows of straight palm trees stand on each side, like two young pioneers, guarding the campus. Two beautiful little gardens behind them, the flowers in them are beautiful. The willow tree in the playground, graceful, the spring comes, she was combing her hair, as if in waved to us, one side of the Holly and poplar have also show their new clothes. The pleasant scenery of the campus has created a comfortable learning environment for us to grow healthy and lively.
However, there are a few students behavior, let we see what we dont want to see: the playground, there will always leave some on the corridor, corridor confetti and small bags; On the lawn, the green belt occasionally discovers the deep footprints left by the students. Others have turned the desks in the classroom into "cat faces"; Not to save water, to lose precious water, and to make the flower bed a playground...
篇6:和校园环境有关的英语作文
全文共 2522 字
+ 加入清单My school life
There is no doubt that almost all students dislike school life,but everyone has the responsibility to end the the examination-oriented education.
I am a student who study in a school which is located in Yongchang. I was admitted into this beautiful school. I still remember the day when I first went to school. In my eyes, everything was pretty. I get on well with my classmates and teachers. Since I went to this school, I think of my teachers as my best friends like leaves and flowers. I never look upon them as others. It is reason why I often question my teachers on some problems is that I love them. When I am trouble and lose heart, they always help me settle these problems.Of course, I am also satisfied with their education. I have a lot of friends who can make me try to form them good study habits. Because of that, I often get up early and try my best to study well.
I also like you that I have favorite subject, also have dislike subject. I prefer learning English to learning others. It is easily of me to learn this lesson, I often get an "A" in the exam. In my In my opinion,In the future work, the English study also play an important role. I do not like Chinese because it is so boring that I cant stand
sleeping. In order to make progress, I have to try my best to learn it well. I also want to lay a good foundation in all subjects. I believe, in the near future, I am learning will be successful.
I think we should enjoy a change from our busy life in our school. So we must have an outing at some interesting places, Such as The Himalayas, the west lake and the great wall. In this way, we will have a rest in our busy life, If it is in beautiful places that you will enjoy yourselves. During that time, you will not only see the sights od views, but you also can go through an interesting life. That can enlarge your views. Physical recreations and intellectual activities are the two major ways of spending our leisure time. While some people have interests in both of them, most of us also have preferable way to spend our time off.I prefer a balance of these kinds of activities to provide both the physical conditioning and mental stimulation I need to face in the daily grind. For me, physical recreation is necessary for good health but intellectual pursuits such as reading stories provide the most pleasure.
I really enjoy my school life. School life should be interesting and colorful, just as the saying goes, "The school life is everyone young men, the source of happiness.&quo
篇7:保护环境英语
全文共 1101 字
+ 加入清单Cars and Air Pollution
Too many cars have created a lot of serious problems in our world. Besides congestion, accidents and fast fuel consumption, cars are responsible for a good part of air pollution in big cities. All the time, they are pumping huge amounts of waste gases into the atmosphere. These gases are very harmful, causing disease and even death.
One possible solution is to design and develop clean cars and clean fuels. In Shanghai, some of the public buses begin to run on natural gas, which does not give off as much carbon dioxide as the petrol. But it may take decades for the new models of clean cars completely replace the traditional ones. Another solution is to develop modern public transportation systems and restrict the use of private cars. If the price of petrol rises constantly and the public vehicles are efficient and convenient enough, most people will not buy private cars. And the total number of cars in big cities will reduce greatly.
On the whole, the elimination of air pollution needs the collective efforts from the government, the public and the environmentalists.
篇8:高三关于环境污染英语作文带翻译
全文共 2159 字
+ 加入清单In the 21st century, humans science economic development has reached a very high level. But I want to ask: do you have any aware of human activities on the environment will be what kind of impact?
The deforestation of the forest is not a serious problem? According to the survey the world forest area is in at an annual rate of millions of hectares of disappear. Caused a lot of water and soil loss, make many areas become desert. Scope of human activities in the declining, its not scary?
What human besides destroying forests, dont damage the environment problems? It is not. Now, we should see the seriousness of water pollution. At present, 60% of the country in the world face the shortage of water, 20% of the population is difficult to get clean water, 51% of the people do not have access to sanitary water. This is caused by what? Is, that we are causing ourselves now factories and sewage in our life, not by processing is out. This is not proof of that? According to research, each 1 cubic meter of sewage discharge, 14 cubic meters of natural water pollution. Think of it, this is what a terrible number?
In the discharge of smoke in the factory, we dont know the smoke is atmospheric pollution? Scientists have found that there are at least 100 species of air pollutants produced great harm to the environment, directly affect peoples health.
Do we want to live in such an environment? Certainly dont want to; Then let us use action to prove it! We can start from me, start from now, start from the side. Love nature, the consciousness of environment protection! To do propaganda environmental protection angel! Lets take action to protect the environment
在21世纪的今天,人类的科学经济发展已经达到了很高的水平。然而我想问:你们有没有意识到人类的活动对环境会造成怎样的影响呢?
森林的乱砍滥伐不就是一个严峻的问题吗?据调查全世界森林面积正以每年上千万公顷的速度在消失。造成大量的水土流失,使许多地区成为沙漠。人类的活动范围在不断减少,这不可怕吗?
人类除了破坏森林之外,难道就没有什么破坏环境的问题了吗?不是这样的。现在我们应该看到水污染的严重性,目前世界上60%的地区面临供水不足,已有20%的人口难以得到清洁水,51%的人无法得到卫生用水。这是什么造成的呢?是我们人类自己造成的,现在的工厂及我们生活中的污水,没有通过处理就排出去。这不是最好的证明吗?据研究,每排放1立方米污水,就污染14立方米天然水。想一想,这是多么可怕的数字?
在工厂排出的浓烟里,我们不知道浓烟是污染大气的吗?科学家发现,至少有100种大气污染物对环境产生极大危害,直接影响人们的健康。
难道我们想在这种环境中生活吗?当然不想;那让我们用行动来证明吧!我们可以从我做起,从现在做起,从身边做起。树立爱自然、爱护环境的意识吧!来做宣传环保的使者!让我们一起为保护环境行动起来吧
篇9:以环境污染话题
全文共 660 字
+ 加入清单以前的我虽然有保护环境的觉悟,却总是没有行动,吃完的食品袋,随手就扔;看完的广告纸,我还要撕碎了才扔。后来,我看见起风时满天乱飞的食品袋、纸片、灰尘不禁思考起来。
在我很小的时侯,曾听爷爷讲过一个故事:从前,有座山庄,那里森林葱郁,河水清澈,鸟语花香,人们过得幸福快乐。后来,来了一个人对当地的人们说:“你们拥有巨大的财富。”人们高兴极了,以为这儿埋着大量的金银财宝。于是,他们开始砍倒树木寻找黄金。几年后,那人又来了,人们因为没有找到财宝而质问那人。那人叹口气说:“我说的财富就是你们原来拥有的那优美宜人的环境呀!”人们听后难过极了,由于人们的肆意破坏,现在就连鸟儿也很少光顾了。
当时,我并没有听懂这个故事。我也不认为村民们破坏了世外桃源般的环境是不对的,反而责怪那外来者,如果不是他的一句话,人们不会那样做。现在想想,美丽的大自然,是人们无穷的财富,这应是人人都可以意识到的,外来者只不过是提醒村民村要好好珍惜它罢了。
爸爸告诉我,在他小的时候,门前那条小河是他们的乐园。清清的河水从村子的中央流过。河里有很多小鱼、螃蟹和蚌,你只要站在岸边就可以看见河里的一切。爸爸和他的小伙伴就在这条河里游泳、玩耍。每次下河玩耍回来,手里还拿着“战利品”。河面上没有杂草,那时运送粮食的轮船可以自由地进出
古往今来,地球妈妈用甘甜乳汁哺育各族儿女,让我们茁壮成长!用健美臂膀挽起高山大海,让我们健康成长。可是现在人们为了自身的利益将她折磨得天昏地暗。现在我们的地球妈妈面临着巨大的环境危机,所以我们要一起来帮她解决难题,一起来保护环境。
篇10:环境污染原因环境污染
全文共 1274 字
+ 加入清单就最近这几年来看,随着各地区的经济迅猛发展,环境污染问题也越来越严重,保护环境,维持生态平衡也成为了我们每个公民应尽的责任和义务,也是为了社会更好发展的一项重要举措!
何为环境?从哲学的角度来看,所谓环境,主要指我们所研究的主体周围的一切情况和条件。对于人来说,环境是指人生活于其中,并能影响人的一切外部条件的综合。人的生活离不开好的环境,在人类几百万年的历史进程中,环境对开创人类文明和进步发挥着巨大作用。
大气资源、水资源、土地资源等等,都是让人类得以生存的物质基础;而森林资源、矿藏资源等资源又为人类的不断发展提供物质,创造出地球上高度的人类文明。但是,人类在开发利用环境资源的同时,也对自己的生存环境产生了一系列环境问题。
在我们身边就有很多污染环境的污染物,例如说:大量的生活废弃品,塑料袋(也称白色垃圾),一次性木筷,一次性饭盒,果皮纸屑。污染物对环境来说,毫无疑问,肯定有很大的危害,例如动物的腐烂的尸体会影响环境卫生,而且还会滋生细菌。饭店、餐馆认为很卫生的一次性木筷,使用后随便一扔,影响了市容,破坏了环境。。
现在像我们柳疃镇、青乡乡,最近电网部门纷纷撤除喷水机器的使用。喷水机的使用对环境的污染更加恶化、污染了水资源对人们的身体健康危害甚大。人类的活动会使大量的工业、农业和生活废弃物排入水中,使水受到污染。又例如说,我们北部渤海湾受到工业、印染厂的废弃物排放大量鱼虾死亡,地区农民上海捕鱼,鱼的体内含有大量化学物质对人们的身体健康造成了危害。据资料统计,目前,全世界每年约有4200多亿立方米的污水排入江河湖海,污染了5.5万亿立方米的淡水,这相当于全球径流总量的14%以上。1984年颁布的中华人民共和国水污染防治法中为“水污染”下了明确的定义,即水体因某种物质的介入,而导致其化学、物理、生物或者放射性等方面特征的改变,从而影响水的有效利用,危害人体健康或者破坏生态环境,造成水质恶化的现象称为水污染。水的污染有两类:一类是自然污染;另一类是人为污染。当前对水体危害较大的是人为污染。水污染可根据污染杂质的不同而主要分为化学性污染、物理性污染和生物性污染三大类。
最近,我发现政府部门、昌邑环卫局开始大力整治环境,沿街排查污染源,青乡街也定点安置了便民垃圾桶,替代了原来垃圾围绕街道,臭气熏天的状况。各个村庄开始整治村内环境的污染源,使街道、村庄焕然一新!而这不是主要的,更重要的是我们每个人自觉保护环境,保护我们赖以生存的家园,为了我们更为了我们的后代,树立好榜样,奠基好基础,让我们的家园更加美丽、更加丰富多彩!
所以呢!环境与我们的生活密切相关,保护环境卫生从我做起,从现在做起:不随地吐痰;不乱扔垃圾;废弃电池和塑料袋要处理好;多植树造林,不践踏草坪;不污染水源。保护环境,我们有责!看你的行动喽!
小建议:家庭生活中的塑料瓶可以做成装饰品,可回收物品可以卖出,换来金钱买实用的东西岂不很好?一次性木筷消毒清洗一下可以做成装饰品,你也能开小店赚大钱了!化废物为贵宝,让自己的心情更舒畅,让自己的心灵更纯洁,让自己的家庭更温馨!
篇11:环境污染变化的作文篇
全文共 403 字
+ 加入清单许多人都没有注意,我们周围的环境正一天天恶化,更没有人注意,我们与环境有着十分密切的关系,就想鱼和水那样密不可分。
近年来,随着地区经济的迅猛发展,环境污染也越来越严重。造成环境污染的东西是:废水、废气、粪便、腐肉、塑料袋、垃圾等。
也许有人认为,环境污染了就污染了,不关我的事。这样想就大错特错,环境问题直接联系到人类的健康。废气会使空气混浊,对人的肺部有很大的危害;废水会污染江河,使和中生物死亡,人们就无法吃到鲜鱼、虾等;垃圾会污染土壤,使农作物无法收成……就连吐口痰,也许还会使许多人的病。
再者,人们随意砍伐树木,不但使飞禽走兽无栖身之地,还使地球失去了宝贵的森林资源。还有,树木种在江河边,可以用根网住土壤,遇上暴风雨是能减少水土流失。人们砍了树木后,泥沙都冲到江河里去,导致河床增高,水灾泛滥,黄河就是一个例子。
听了我的介绍后,你们是否明白了保护环境的重要性?让我们一起保护环境,让地球不再被污染。
篇12:环境污染现象英语
全文共 1441 字
+ 加入清单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.
篇13:家乡环境污染
全文共 403 字
+ 加入清单家乡变了,真的变了!天空变暗了;小鸟变少了;小河变浑了,就连鱼虾都“躲”了起来。
家乡变的原因还是冒滚滚浓烟的大-烟囱和污水。这几年来,工厂不断的生产,废气从烟囱里冒出来,污水不断从管道里淌出来。还有就是人们乱堆垃圾,把地球的“外衣”破坏了。就这样,家乡被污染了。
小河在哭泣,哭泣自己没有伙伴;小鸟在呼吁,呼吁自己美好的家园;地球在痛苦,痛苦自己没了外衣;
我知道,原来家乡不是这样的。原来的家乡天是一片碧蓝,河是清澈见底,鱼虾自由自在,鸟儿成群飞翔。而现在呢?现在的家乡已不是昔日的家乡了,现在……
小鸟呼吁人类:人类,请你们不要把树木砍伐,让我们无家可归,四处流浪。我呼吁人类:请你们不要把垃圾四处乱丢,让空气变的浑浊,请你们为自己想一想,如果哪一天空气没了,你们会怎么样?
让我们一起保护自己的家园,不要让家园的环境再变难看,而要让家乡的环境变得更美!一起行动起来,为自己创造一片蓝天吧!
[家乡环境污染 作文
篇14:环境污染原因环境污染的根源
全文共 2362 字
+ 加入清单在十年前的中国,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。
篇15:中考英语作文:关于环境保护问题
全文共 3064 字
+ 加入清单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.
篇16:环境污染类英语作文
全文共 1331 字
+ 加入清单环境污染(environment pollution)是指人类直接或间接地向环境排放超过其自净能力的物质或能量,从而使环境的质量降低,对人类的生存与发展、生态系统和财产造成不利影响的现象。具体包括:水污染、大气污染、噪声污染、放射性污染等。
人类生产活动对自然环境的污染主要包括两个方面:一是工业生产过程中产生的废水废气废渣和农业上使用的农药、化肥等对水、大气、土壤、食品的污染;二是在自然资源开发和利用中,产生的对环境的污染。
相信大家对于环保都有一定的认识,也曾读过关于限塑令,节约用水保护环境等为主题的作文。我们来看一下这篇范文,试着找出其中的优点与不足。
Low-carbon life is the lifestyle of the time to minimize energy consumption, thereby reducing carbon dioxide emissions. Low-carbon life, for those of us ordinary people is an attitude to life. It gives us is a willing and we were creating a low carbon life issues.Taomi Shui can be used to wash their hands every day, clean furniture, water the flowers and so on. Clean, natural moisture;Scrap paper will pave the lowest in the closet can not only absorb moisture, can absorb the smell in the closet;Drink tea residue, dry it, make a tea pillow comfortable, and help to improve sleep;Lifestyle to reduce energy consumption when, thereby reducing the carbon, especially carbon dioxide emissions. Low-carbon life, for us ordinary people, an attitude, not ability, we should actively promote and to practice the low carbon life, pay attention to energy saving, fuel-efficient, water saving, solar terms, starting from scratch. 这篇作文第一段讲述了什么是低碳生活以及低碳生活成为了当今的热门话题。第二段介绍几种低碳生活的方法。第三段作总结,提倡大家注意低碳生活,紧扣主题。本人认为这篇作文整体来说还可以,但第二段作者直接上来就把具体方法告诉大家,没有一个引导句或总结句,稍微显点突兀。
篇17:环境被污染作文500字
全文共 558 字
+ 加入清单在这喧嚣的城市当中,霓虹灯取代了参天大树。记忆中的绿地现在已盖满了高楼大厦,我再也不能亲眼目睹往日清新的惬意,身边只有那污浊的空气。
我是地球上唯一一只幸存的伞鸟,原本生活在茂密的林中。我记忆中的家园是如此的美好。丛林中的树木仿佛受到了春的召集,鹅黄的嫩芽从纤细的枝条中,迸发出新的感激。明媚的阳光洒在河面上,给解冻的江河披上了一层柔纱。“风乍起,吹皱一池春水。”河面的垂柳,伴着清风飞舞。我情不自禁的卖弄起歌喉。在这梦幻的世界里,我惬意的欢唱着。
当旭日从东方冉冉升起,照亮天空和大地,空气中弥漫着花草的清香。秋空在山野拉开金碧辉煌的大幕,又有飘逸的白云,对对船帆,航行在一望无际蔚蓝的天海,如漫过草原的羊群,写出秋天的丰硕。
人类,请睁大你们贪婪的双眼吧!你们一直都在尽情的享受大自然给予的安逸与美好。愚昧的人类啊,请不要再肆意破坏自然了,珍爱你们生存的空间吧!
森林连年递减,土地荒漠化。这是目前世界上最严重的环境问题。全球每年有一千万公顷的土地变为荒漠。一个又一个铁的事实告诉我们,人类的破坏犹如一把利剑直直的插入地球的心脏。
我是一只小小鸟,我别无他求。只求未来的天空是碧蓝的,水是清澈的,绿树成荫,鲜花遍地,还有我的一片栖息之地。
落日的余晖照在我的双眸上,远处的树桩静穆得有些凄凉。我静静的闭上双眸等待人类的觉醒!
篇18:护环境的英语作文
全文共 1487 字
+ 加入清单On March 1, the activities of the school to carry out the "health small pacesetter". Class meetings, dong teacher said: "we waste a lot of the classroom, we want to see the paper picked it up and throw into the trash can, if you see a litter paper classmates, everybody is going to report, pick up the paper, most of which students report students, the more is the health of small fields, ok?" The students replied in unison: "good."
A class, the students will pick up the paper in the classroom, I found many scraps on the ground, and put them all picked up, and then all into the trash can. "You throw waste paper is wrong." See the classmate throw draft paper, I hurriedly went up to stop. He said: "Im sorry, Ill pick it up.
Through "hygienic pacesetter" activities, let I deeply feel: "everybody is responsible for environmental protection," not talk u, but every little bit in our daily life. We want to start from oneself, start from every little bit, love flowers and plants trees, no littering, no spitting.
The classmates, come on! Starts from me, start from now, protect the environment and make our school more beautiful!
3月1日,学校开展“卫生小标兵”的活动。班会课的时候,董老师说:“我们教室的垃圾很多,我们要把看到的纸捡起来丢到垃圾桶里,如果看到有乱丢纸的同学,大家就要举报,哪个同学捡的纸最多,举报同学的越多,就是卫生小标兵,好不好?”同学们异口同声地说:“好。”
一下课,同学们就在教室里捡纸,我在地面找到了许许多多的碎纸,并把它们都捡了起来,然后全部放到了垃圾桶里。“你乱丢废纸是不对的。”看到有同学乱扔草稿纸,我连忙上去制止。他说:“对不起,我马上就捡起来。
通过“卫生小标兵“的活动,让我深深地感觉到:“保护环境,人人有责”不是夸夸其谈的一句空话,而是我们日常生活中的一点一滴。我们要从自己做起,从一点一滴做起,爱护花草树木,不乱扔垃圾,不随地吐痰。
同学们,加油吧!从我做起,从现在做起,保护环境,让我们的校园变得更加美好!
篇19:美化校园环境英语作文
全文共 810 字
+ 加入清单As we all know,a better result of study can be brought by a better study environment.As a result,it is necessary for us to build the green campus.The green campus can not only provide a good environment for our study,but also be a part of build the harmonious society.
The green campus is not only the environmental being green,but also the sprite being green,which means we should do other things like helping each other or caring each other.Therefore,we should both beautify the campus environment and create a campus culture.
As university students,we enjoy the campus time while we have responsibility to build our green campus.In spiritual term,we should respect teachers,classmates and other people work for the school.In environmental term,we should have good habits to keep campus in a clean surrounding.
篇20:地球的环境污染
全文共 660 字
+ 加入清单地球是我们居住的地方,也给我们提供了很多能源。可是,我们却不懂得感恩,而且把地球弄得乌烟瘴气。有一次,我去海边游泳,刚刚到海里的时候,想往回游,结果抓到了一个废旧的塑料袋。然后,我又看了一下海面,并不是那是作文里写的那样那么蓝,那么清澈,而是非常浑浊。
看来工厂对河水的污染已经影响到了大海。我记得我看过一本《快乐日记》的杂志里面,有一篇作文叫《二十三世纪》,主要是写人们发现地球是呆不下去了,人类只好找适合生存的星球,人类都转移出地球以后,存留在地球的大量核导弹,引起了一次大爆炸。那个时候,地球已经没有人在了,地球也是这样被毁灭的,这是二十二世纪的事了。所以在二十三世纪的时候,人类特意举办了一场追悼会,追悼那个二十二世纪毁灭的地球,还有那些被毁灭的花花草草和动物。我们平常在家里吹空调的时候,都不知道给北极的毁灭增加了几分可能,给环境又增加了几分破坏。南极还好说,有一些企鹅已经适应了热带地区的生活,不适应的还会游泳不像北极熊又不适应热带地区,也不会游泳,只有被灭绝的可能。
还有我们开的汽车,虽然看起来很方便,但是汽车的尾气会破坏大气层,大气层可以挡住的太阳的不可照光,比如紫外线和红外线。但大气层被破坏之后,太阳的不可照光会危害地球上的生物,包括我们的人类。这些不可照光如果眼睛看多了的话,会产生智力下降的影响。公交车虽然排出的尾气很多,但是它可以载很多人。所以,我们尽量少开车,多坐公交车。如果能骑单车的话那就更好了。地球现在已经受到了我们人类重重的伤害,所以,我们要行动起来,一起保护地球,守卫我们美好的家园。