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761保护环境的英语作文
全文共 1432 字
+ 加入清单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.
更多相似作文
篇1:保护环境,拒绝白色污染的作文
全文共 544 字
+ 加入清单塑料的发明和应用给人们的生产和生活带来了极大的方便;上街买东西不用再带篮子,有塑料袋为你服务;出差也不用再带牙刷,宾馆早就为你准备齐全……可是这些用后随手丢弃的塑料制品却给我们的生活环境留下了百处隐患。
使用后四处散制的塑料制品,一方面影响市容和景观,带来“视觉污染”;另一方面,塑料制品“潜在危害”,掩埋,不仅占用土地,还造成土壤污染、地下水污染、焚烧,会产生有刺激性的毒气体,污染大气环境,损害人体健康。
针对日益严重的白色污染及其危害,各国开展了防治白色污染的研究,光降解塑料、生物降解塑料、光生物降解塑料、水降解塑料均已诞生,但是回收废塑料并使之资源化仍是解决白色污染的根本途径。我国提出了“回收为主,替代为辅”的方针,并相继出台了如禁止使用泡沫塑料盒、限塑令等一系列相关法规:
2007年12月31日,国务院办公厅下发“限塑令”,明确规定:“从2008年6月1日起,在全国范围内禁止生产、销售、使用厚度小于0。025毫米的塑料袋,在所有超市、商场、集贸市场等商品零售所实行塑料购物袋有偿使用制度,一律不得免费提供塑料袋。”
防治白色污染,我的建议是:不使用一次性餐具;家里来客人不用一次性水杯;塑料多次使用;废弃塑料制品卖给废品收购者;开发可降解塑料;加强环保宣传,提高公民的环保意识!
篇2:保护环境的英语作文带翻译
全文共 1397 字
+ 加入清单Environmental protection, there are many problems at present. The most serious problems is the serious pollution of air, water and soil. Air pollution is very harmful to human health. Polluted water causes pain, resulting in death. Whats more, with the rapid expansion of modern society, vegetation greatly reduced.
In order to protect the environment, governments have done a lot of work. Adopted legislative measures to control air pollution, to protect forest resources and Marine resources and to stop any environmental pollution. Therefore, in todays government plays a most important role in environmental protection.
My view is that, in order to protect the environment, the government should take more concrete measures. First of all, should by the methods of education make people fully realize the importance of environmental protection. Second, should be more efforts to put the family planning policy into practice, because more people means severe pollution. Finally, to severely punish those who intentionally damage the environment. That they damage the environment is the destruction of man himself.
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,各国政府做了大量的工作。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,应当通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己。
篇3:小河环境污染作文300字
全文共 367 字
+ 加入清单我是一条河,我非常快乐,我有很多朋友:小鱼、大树和小朋友们。
随着时光的推移,以前健壮的我,现在却这样瘦弱。以前美丽的我,现在却如此的丑陋呀!以前我整天欢快地歌唱,而现在我每天都看着天空,不断地唉声叹气。这都是因为我身上的这一大堆垃圾。我的脸上自从有了泥沙,就成了一个便利又肮脏的垃圾地。一旁的大树吸取了脏的水,还差点枯死。那天,小鱼也带着所有伙伴悄悄地离开这里。为了不让我太伤心,小鱼们在夜里行动。
那次,有两个小男孩回家路过这里,其中一个说:“我们快走,这里太臭了!”另一个人点点头。于是,他们风一样的跑远了。“你们别走啊!”我大声地喊。可是,再怎么喊也是没用的,因为谁愿意到这个“垃圾场”边玩呢?这时,我的眼睛里不禁留下了眼泪。
人类,请你们不要乱扔垃圾,这样,你不仅仅是破坏环境,还会危害地球。为了我们共同的家园,请一起保护环境吧!
篇4:英语作文环境与发展
全文共 979 字
+ 加入清单Environment and development
Today, the environmental pollution has become an increasingly serious problem, because The development is not in harmony with the environment,The following are some of the reasons for the formation of environmental problems/phenomenon
The society is developing rapidly,But the environment appeared serious problem,First, some factories discharge waste water and waste gas,Second, some people throw rubbish,Some people left writing on the Tourist attractions ,Third, some people cut down trees and kill endangered animal
In order to protect the environment and solve environmental pollution, I have some suggestions
First, government departments should strengthen supervision, and take appropriate punitive measures,Second, social development should not to destroy the environment
Third, everyone should have the awareness of environmental protection,If each of us to participate in environmental protection, I believe that our life will be more beautiful.
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篇5:环境被污染的作文300字
全文共 439 字
+ 加入清单我们的环境污染我们的环境污染我们现在的生活比以前好得多,但环境跟以前简直就不能比。以前的空气清香并掺和着花草的芳香,河水清澈见底.........而现在呢?汽车排出的废气和工业废气相当多,河水臭气直出.........我们大家为了过上好生活,都买汽车,但车主们有没有想过这样的量使用汽车的后果。有些地方之间的距离非常近,但车主们不想跑,就直接开汽车。假如一辆汽车一天排放一千克废气,那么中国每天大约有几千万辆汽车在行驶,那么一天就要排放几千万千克的废气。这个数目仅显示一天一千克的废气排放量和仅计算中国的废气排放情况。工厂的污染更严重,水和空气都要被污染。大量的废水排入大海和河流之中,以致大量的鱼虾、水中植物死亡和大量的水资源被污染.........我们地球上的资源也在一天一天的减少。大量可回收的品中只有3﹪是被回收并再生的。许多白色垃圾造成了白色污染。我心中的家园是和以前差不多的,可是这是很难挽回的。为了我么大家共同生活了几千万年的蓝色星球?——地球的美好未来而努力吧!
篇6: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7:中考英语作文:关于环境保护问题
全文共 671 字
+ 加入清单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.
篇8:2024关于解决空气污染英语作文
全文共 1286 字
+ 加入清单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.
据报道,在中国十个大城市被排名前二十的城市污染指数最高的国家。这意味着是时候我们做了一件控制局势。许多因素导致恶化的形势:工业废物注入空气,湖泊和河流,越来越多的汽车涌入街头,塑料袋的广泛使用等。
就我看来,更严格的法律法规必须实现检查污染。释放废弃物未经许可的行业应该是严重的罚款。汽车应该配备最小化他们释放的废气到空气中。和使用塑料袋和一次性餐箱应被禁止。更重要的是,媒体应该发挥重要作用在植入的环境意识到人们的心灵。如果每个人都朝着一个共同的目标工作的环境更好,我们可以创造一个更清洁和更可爱的世界,为我们和未来的一代。
篇9:环境保护英语作文450字
全文共 1812 字
+ 加入清单Once man did not have to think about the protection of his environment。 There were few people on the earth, and natural resources seemed to be unlimited。Today things are different。 The world has bee too crowded。 We are using up our natural resources,and polluting our environment with dangerous chemicals。 If we continue to do this, human life on earth will not survive。 We realize that if too many fish are taken from the sea, there will soon be none left。 Yet,with modern fishing methods, more and more fish are caught。We know that if too many trees are cut down, forests will disappear。 Yet, we continue to use powerful machines to cut down more and more trees。 We see that if rivers are polluted with waste products, we will die。 Yet, waste products are still put into rivers。
过去,人们不必担心保护环境的问题。因为那时地球上人口稀少,自然资源似乎取之不尽。如今,一切都改变了。世界变得拥挤异常。我们正在耗尽我们的自然资源,有毒化学制品的使用也正污染着环境。如果我们继续这样下去,地球上的生命将不复存在。我们都明白如果从海里捕捉太多的鱼,海里就不会再有鱼了。可是,现代化的捕鱼技术使得捕鱼量越来越大。我们都明白如果砍伐太多的树木,森林就会消失。可是,我们仍旧使用强大的机械砍伐越来越多的树木。我们都明白如果河水被废弃物污染的话,我们仅有死路一条。可是废弃物仍然源源不断地进入河里。
We know that if the population continues to rise at the present rate, in a few years, there won't be enough food。What can we do to solve these problems?If we eat more vegetables and less meat, there will be more food available。 Land for crops feeds five times more people than land where animals are kept。Our natural resources will last longer if we learn to recycie them。The world population will not rise so quickly if people use modern methods of birth control。
我们明白,人口继续照此刻这个速度增长的话,不出几年,就会发生食物短缺。我们该如何解决这些问题呢?如果我们多吃蔬菜,少吃肉类的话,我们就会有更多的食物。因为同样大小的土地如果种庄稼的话会比养殖动物多养活五倍多的人。如果我们学会再利用的话,自然资源就能持续更久。如果人们使用现代化的生育控制方法,世界人口就不会增长如此迅猛。
Finally, if we educate people to think about the problems we shall have a better and cleaner planet in the future。
最终,如果我们能够教育人们都意识到这些问题的话,未来我们就会有一个更好、更洁净的星球。
篇10:汽车污染的高中英语作文
全文共 1557 字
+ 加入清单导语:随着人们生活水平的提高,私家车数量不断增加。下面是yuwenmi小编为大家整理的优秀英语作文,欢迎阅读与借鉴,谢谢!
Private cars have become an important aspect of people‘s life in many parts of our country, especially in large cities such as Beijing, Shanghai and Guangzhou. While they bring much convenience to people, they are also widely criticized. There are some arguments for owning private cars. In the first place, cars allow people to move around freely, which greatly improves our living standard. We can easily drive cars for sightseeing on weekends. In the second place, cars are a comfortable way to travel, especially in bad weather. Last but not least, the car industry can boost economy by creating many job opportunities in production of steel, rubber, glass and so on. However, there are also many good arguments against cars. First of all, they pollute the environment by emitting harmful gases and giving out loud noises. In addition, cars cause a large number of traffic accidents, which bring great misery to the victims‘ families. As far as I am concerned, we should limit the number of private cars by providing better mass transportation and better service for the people. Everyone should sacrifice his or her own interest for the common good of the society.
【参考译文】
私家车已成为我国许多地区人民生活的一个重要方面,特别是在北京、上海和中国等大城市。虽然他们给人们带来很多方便,但他们也被广泛批评。有一些理由拥有私家车。首先,汽车可以让人们自由走动,这大大提高了我们的生活水平。周末我们可以很容易地开车观光。其次,汽车是一种舒适的旅行方式,尤其是在恶劣的天气里。最后但并非最不重要的是,汽车工业可以通过创造钢铁、橡胶、玻璃等的就业机会来提振经济。然而,也有许多好论据反对汽车。首先,他们通过排放有害气体和发出大声的噪音来污染环境。此外,汽车造成了大量的交通事故,给遇难者家属带来了极大的痛苦。就我而言,我们应该通过提供更好的大众运输和更好的服务来限制私家车的数量。为了社会的共同利益,每个人都应该牺牲自己的利益。
篇11:三年级关于环境保护的英语作文
全文共 1692 字
+ 加入清单Water is the source of life. Human can not do without water, animals, plants cannot survive without water. We every day to drink water, water, not only we need water, the fish in the water, the crops of the fields, the trees on the hill, and so on all need water. Some people may think so: water is to burn forever, love how how waste waste, this idea is wrong, we should change the idea.
I listen to mama said, in our city the creek, at the time of their small river on the bottom, they often catch fish in the river, catch shrimp, game play, but now is full of rubbish, into a dry river.
Water had a close relationship with each one of us, if there is no water, crops cant grow, we have no food to eat and vegetables, we wash hands, wash dishes, laundry every day... A moment also can not do without water. We cant live without water. Since the water effect, we should save water, form the good habit of saving water, do people go to close the tap, dont throw the rubbish into the river... Keep water clean.
For all of us have a good living environment, let us together hand in hand together, starts from me, start from now, sets up the idea of saving water, protecting water, take good care of water is to take care of ourselves.
In order to our better future, we all work together!
水是生命的源泉。人类离不开水,动物、植物也离不开水。我们每天要喝水、用水,不光我们需要水,水里的鱼儿、田里的庄稼、山上的树木等等都需要水。有的人可能这么想:水是永远用不完,爱怎么浪费就怎么浪费,这种想法是不对的,我们应该改变这种想法。
我听妈妈说,在我们城里的这条小河,在她们小的时候河里清澈见底,她们经常在河水里捉鱼、捉虾、游戏玩耍,可是到了现在却到处是垃圾,成了一条干枯的小河。
水与我们每一个人都关系密切,如果没有水,农作物就无法生长,我们就没有吃的粮食和蔬菜了,我们每天洗手、洗菜、洗衣…一刻也离不开水。如果没有水,我们就不能生存。既然水的作用那么大,我们就应该节约用水,从小养成节约用水的好习惯,做到人走关好水龙头、不把垃圾扔到河里…使水能够保持干净。
为了我们大家有一个良好的生活环境,让我们一起携手起来,从我做起,从现在做起,树立起节水、护水的观念,爱护水就是爱护我们自己。
为了我们美好的未来,我们大家一起努力吧!
篇12:环境污染600字
全文共 711 字
+ 加入清单我们生活在同一个星球上,地球母亲为我们提供了一个良好的生活环境,丰富的资源……她就这样无私地为我们奉献着各种资源,而她得到的回报却是一次又一次的伤害。我们的地球母亲现在正在水深火热当中,污染已经把她伤的体无完肤了。
但是许多人至今还没有清醒地意识到这一点。在城市、在乡村,到处可以看到乱扔的垃圾和流淌的污水,可以闻到汽车和工厂排放的废气,白色的污染物已经遍布大半个世界,以致使全球的气候变暖,灾害不断。这样发展下去,百年之后,南极大陆和北极的冰川将会消夫,到那时候,我们不得不对孩子们说:“这个世界上过去曾经有过冰和雪……”
所以,我们必须立即行动起来,一起向污染宣战!
爱护环境,保卫地球,必须从小事做起,从我做起。平时不乱扔垃圾,塑料袋、废电池更不能随意乱扔,垃圾要按规定分类装袋丢弃;口香糖最不能随便乱吐,因为它的粘性很大,粘上了很难清除;要爱护公共园地的花草树木,不能采摘、践踏;地球上水资源贫乏,要节约用水,用完水后要把自来水龙头关好,不要让它“哭泣”;你在洗澡搽肥皂时,一定要把水源关上,别让水白白流淌……
如果我们全世界的六十四亿多人,每个人都有这种从小事做起的环保意识,那么现在也不至于会出现白色污染霸占地球了。
行动起来!减少污染,从我做起!亲爱的爸爸,少吸一颗烟吧;亲爱的妈妈,买东西少用一个塑料袋吧;敬爱的大人们,少开一天车吧;可爱的小朋友们,少吃一块泡泡糖吧;农民伯伯们,少打一点农药吧;工人叔叔们少排放一点浓烟和污水吧!我们共同的`家园需要我们共同来建造和保护,让记忆中的山清水秀、绿树成荫、鸟语花香再重新回到我们的身边吧!
保护环境,从你我开始做起,从现在就开始做起,让我们一起向污染宣战,还我美好家园吧!
篇13:污染环境的作文600字
全文共 670 字
+ 加入清单地球为什么会流泪呢?下面让我们揭晓答案吧!
有一天,我发现地球伤心地哭着,就问她:"地球姐姐,你为什么会哭呢?”地球答道:”你先去问问自然环境吧。””好的。”我边走边说。我来到小溪边,那里的小草枯萎了,小溪脏的不成样,柳树也被砍断了,周围的一切都暗淡无色。我仔细地看着还有没有小草活着,”嘿!小草,你还活着吗?””嗯,活着。咳~我好口渴!”小草无力地说。”啊,是这样啊,我马上去拿水。”我边说边往家里跑去。
我拎了一大桶水,准备给没死的小草喝。”小草,快喝吧!”我把水给小草。”咕嘟~咕嘟,谢谢你!”小草满足。”不用谢。对了,你和这里的环境为什么会变成现在这个样子?以前还很好看呢!”我疑问。”那是因为溪水脏了,给我喝的水也脏了,所以才会变成这样。至于小溪为什么那么脏你要问她。”小草答道。”谢谢。”我走向小溪边。问道:”小溪,你好,你为什么会变得又黑又脏呢?”小溪伤心的说:”呜呜呜~因为那边有一座工厂,天天排放污水出来,害的我被污染。还有,有人会丢一些果皮纸屑或瓶瓶罐罐的进我的身体。我好难过呀!”我说:”是呀,那些人们一点道德品格也没有,我们不能学他们!这里还有好几棵漂亮的树呢,全被砍掉了!要是我,肯定不会这么做的!”小溪说:”你真是一个善良的人!”我说:”谢谢!”我默默地离开了小溪,来到地球旁边,问:”地球姐姐,我知道了,你是为那些死亡的自然环境而哭的吧!”地球说:”是的,不仅这样,我浑身都脏脏的,好难受啊!”我说:”我一定会叫身边的人保护环境的,我现在就去!”
地球流泪了,请大家做到:保护环境,人人有责!让地球的哭泪变成甜泪吧!
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:环境保护的英语话题作文
全文共 2194 字
+ 加入清单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.
篇16:话题保护环境英语
全文共 3114 字
+ 加入清单Our beautiful earth is only one, is also the only one. If you dont cherish, in the end, the only regret. But now, people regardless of the image, the damage to the environment.
In the street, always see someone to walk less, will their garbage on the ground, this kind of behavior is damage to the environment, and not beautiful. Although there is a punishment, but has no effect. In the end, only the cleaner to clean up the mess. That if be in their own homes, garbage, flies are flying everywhere, do you feel better? That if no cleaner in the world, if so do you dare to imagine? Looking at people such behavior, the earth mother cry. Lets ensure that their hand, whether in where, what time, please send their garbage home.
There is a bad behavior, and that is the grass. Every time after school, some children for fun, always likes to play football on the grass. When your foot jump on it, when enjoying the care of the earth, you can know it in complains to heaven. The grass also hurts, it just didnt express. Dew on the grass face every morning there will be some, and the dew like their tears. The grass also have feelings, when it is happy, it will be a purposeful, enjoy the warmth of sunshine, the breeze bath; When it cry, it will be bent her waist; When it is complained that their is a humble grass, it dead. Lets ensure that their feet, dont trample on the lawn. Use action to soothe the soul of the dead, renewed the miracle of life.
Have you seen? Dozens of people saw an axe in hand, they are going to cut down trees. When forests there saw, with the trees fall. When there is a tornado and sandstorms, no trees to shelter from the rain. Then there is no regret medicine to eat. Without trees, also become no longer pure and fresh air. When youre cold, you go to pick up trees make a fire, it is the warmth of your sacrifices for a tree. Some trees grow hundreds or even thousands of years, is a humble axe ended its long life. What a strong tree, I do not know the moment when it fell, it think about? How hardy tree, can eventually escapes according to the bad luck.
Friends, protect our environment, is to protect our earth. Cherish our only the earth, is to cherish our life. When a rainbow sky, means that garbage to go home, the grass smiles, uncle grandpa happy, our earth mother without crying.
参考翻译:
我们美丽的地球只有一个,也是唯一的一个。如果不好好珍惜,到头来,只有后悔。可现在,总有人不顾形象,在破坏环境。
在街上,总会看见有人为了少走几步路,将自己手中的垃圾随意扔在地上,这种行为既破坏环境,又不美观。虽然有惩罚,但一直以来并没有什么成效。到最后,只有清洁工来收拾残局。那假如是在自己的家里,到处都是垃圾、苍蝇还满天飞,你自己好过吗?那假如世界上没有清洁工,要是这样下去你敢想象吗?看着人们这样的行为,地球妈妈哭泣了。让我们管好自己的手,不管是在什么地方,什么时间,请将自己手中的垃圾送回家。
还有一种不好的行为,那就是践踏草坪。每当放学,有些孩子为了开心,总喜欢在草地上踢足球。当你的脚踏在上面蹦蹦跳跳的时候,享受大地关怀的时候,你可知道它在埋怨上天。小草也会疼,它只不过没有表达出来而已。每天早上小草脸上会有一些露珠,而这些露珠就像是它们的眼泪。小草也有感情,当它快乐的时候,它会挺直腰,享受阳光的温暖,微风的沐浴;当它哭泣的时候,它会弯下自己的腰;当它埋怨自己是颗不起眼的小草时,它已死去。让我们管好自己的脚,别再践踏草坪。用行动安抚已死去的灵魂,再度点燃生命的奇迹。
你看见过吗?几十个人的手里拿着电锯斧头,他们是要去砍伐树木。当森林出现电锯声时,将伴随着一棵棵树的倒下。当出现龙卷风和沙尘暴时,再也没有树木来挡风遮雨。到时再也没有后悔药可吃。没有了树,空气也变得不再清新。当你冷的时候,你去捡树木生火,可你的温暖却是牺牲一棵树换来的。有些树木生长了几百年甚至几千年,可就一把不起眼的斧头结束了它漫长的生命。多么坚强的树,不知当它倒下的那一瞬间,它想到了什么?多么顽强的树,可最终还是逃不过厄运的毒手。
朋友们,保护我们的环境,就是保护我们的地球。珍惜我们唯一的地球,就是珍惜我们的生命。当天空出现彩虹时,就说明垃圾回家了,小草笑了,大叔爷爷乐了,我们的地球妈妈没有在哭泣了。
篇17:汽车污染英语作文
全文共 750 字
+ 加入清单Cars have created a lot of serious problems in our world.
All the time, they are pumping huge amounts of waste gases into the atmosphere, causing disease and even death.
One possible solution is to design and develop clean cars and clean fuels.
But it may take decades for the new models to 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 drive private cars.
On the whole, the elimination of air pollution needs the co-efforts from the government and the public.
This problem will be solved only with the help of science and technology.
篇18:有关污染英语作文高中
全文共 882 字
+ 加入清单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.
篇19:保护环境英语作文
全文共 2944 字
+ 加入清单Environment for us, it is very important, its like a big umbrella, zhefengdangyu for us to protect our homes, if left the magic umbrella, that our home will be like the Sahara desert, a lifeless, desolate. So I want to give meaning to the world, let us together to protect the environment!
Now our side, however, the environment is worsening, I once saw a man on the side of the road just lost a piece of paper, I was very sad, think if everyone throw a piece of paper, then the world will be what are the consequences? Is terrible, and the world will become a white tips, more think more terrible, I quickly pick up the pieces of paper, thrown into the garbage can. At another time, I saw on TV a report about the environment: fujian on the other side of the river water turbidity is not clear, the fish died in the river, floating in the river every fish mouth blowing, the river still waving white trash, have small bags, candy. The scene is really horrible. Improvement in living standards of people, and their environmental protection consciousness is on the decline. And those without morality of tree, they may have thought about the benefits of trees give us? Tree for we pay so much! So many trees for our block of sandstorm and fearful tornado, these trees should have quietly thoroughly self-reflection, if there are no trees, our living environment is what? Visible at the moment we bad environment, also issued a warning to us, remind us take good care of the environment is urgently needed! I think good care environment, everyone duty, so we have to start from now, start from the side, do not spit everywhere, dont throw the paper scraps, less use notebook, can when checking the finished with the book, read the newspapers to practice calligraphy. To protect the environment as the most important work, set up environmental protection consciousness, the guardian to protect the environment.
"To protect the environment, everyone duty." I am going to put this sentence in mind, take this sentence as a seed, I will use attentive to watering it, let it grow, let the "care for the environment, everyone duty" this sentence. I believe that as long as we work together, in the near future, our environment will be getting better and better.
环境对于我们来说,是非常重要的,它就像一把大伞,为我们遮风挡雨保护我们的家园,如果离开了这把神奇的伞,那我们的家园就会像撒哈拉大沙漠一样,一片死气沉沉,荒无人烟。所以我要向全球发出意示,让我们一起保护环境吧!
然而现在我们身边,环境越来越恶化,有一次我看见一个大人在路边随便丢了一张纸,我非常伤心,心想如果每个人都丢一张废纸,那么这个世界会是什么后果呢?真是太可怕了,整个世界就会变成白色的垃圾站,越想越可怕,我急忙把这个纸片捡起来,丢进垃圾桶里。还有一次,我在电视上看见一篇有关环境的报道:福建那边的江水浑浊不清,江里的鱼都死了,浮在了江面,每条鱼的嘴里都吐着白沫,江边还飘着白色垃圾,有小食品袋,糖果皮。这一景象真是惨不忍睹。人们的生活水平在提高,自身的环保意识却在下降。还有那些没有道德的伐树者,他们可有想过树给我们带来的好处呢?树为我们人类付出了那么多!那么多树为我们挡住袭来的沙尘暴和可怕的龙卷风,这些伐树者真应该静静的好好的反省一下,如果没有了树,我们的生活环境又是什么样子呢?可见目前我们环境的恶劣,也是在向我们发出了警告,提醒我们爱护环境刻不容缓!我认为爱护环境,人人有责,所以我们要从现在做起,从身边做起,不要随地吐痰,不乱丢纸屑,少用本子,用完的本子可以当验算本,看完的报纸可以练习毛笔字。把保护环境当做最重要的工作做下去,树立环保意识,做环保守护者。
“保护环境,人人有责。”我要把这句话铭记在心,把这句话当作一颗种子,我会用细心去浇灌它,让它茁壮成长,让“爱护环境,人人有责”这句话传递下去。我相信,只要我们齐心协力,在不久的将来,我们周围的环境一定会变得越来越好。
篇20:环境污染四级英语
全文共 1342 字
+ 加入清单Today,my topic is environmental pollution. As the world get more and more modern, pollution presents a serious problem. More people make more waste. All this waste is polluting our environment. Pollution has a bad influence on our life. There are still many problems of environmental protection in recent years. The most serious problems is the pollution of air, water and soil.
Air pollution is one of the major problems of the modern world. Because some waste gases is coming from factories, cars, power plants put out.The polluted air is harm to people’s health.
The polluted water causes diseases and death. With the development of modern agriculture and industry, more and more waste water is being poured into rivers. It has caused serious pollution. The river is becoming so dirty that no living water pollution is one of the major problems of the modern world.There are nothings can live in it. The river is giving off a terrible smell.
Soil pollution was very serious. The garbage has become an important problem in major cities, ten million tons of garbage every day, a lot of garbage is not incineration and corruption, such as plastic, rubber and so on.
In conclusion, the environmental pollution problem is becoming more and more serious, affecting every aspect of our lives. For our health, we should protect our living environment.