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英语作文:人类活动破坏了环境(经典20篇)

自然赋予了人类生命,让人类得以欣赏如此的壮美景致。下面是小编整理的英语作文:人类活动破坏了环境,欢迎阅读!

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破坏环境的现象

全文共 898 字

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我以前一直以为人类都是善良的,可自从我做了那一个梦后,我看到了人类阴暗的一面……

那一天是假期,我和小伙伴整整玩了一天,玩得很累。晚上回家后,我一沾上床就睡着了……

也不知过了多久,我慢慢地睁开眼睛,突然间,我发现我竟然睡在用小树枝,泥土一以及各种混合物做成的盘型的东西里!我向四周望,发现我的旁边有一群小鸟正在叽叽喳喳地叫。我基本可以确定我成了一只小鸟。我很想做一只小鸟,因为我渴望飞行,渴望与蓝天零距离接触,渴望在白云间做游戏……听着旁边的小鸟在叫,我发现自己好像听得懂小鸟们的谈话,于是,我便跟小鸟们聊了起来。聊着聊着,我听到一只鸟喊“妈妈回来了!”鸟群立刻发出欢呼声。原来,鸟妈妈给我们带来大餐来了。吃完“大餐”,鸟妈妈开始教我们飞行。我特别喜欢飞行,所以我学得很认真。当鸟妈妈亲自示范时,突然,一声枪声响起,鸟妈妈尖叫一声,中弹身亡。鸟群一片惊叫。只听树下面一个尖声和一个粗声在对话。尖声:“快,快,那里还有!”粗声:“我知道,不用你提醒!”说时迟那时快,“砰”地几声枪响,树上顿时火光四起,不少伙伴掉了下去。还好我反应快,趁他们不注意,飞到了后面的树上。不一会儿,鸟叫声没了,我想,伙伴们不会……我不敢再想下去了。想着又听到尖声说:“这么多鸟,够卖好多钱的了。”粗声说:“我们快走吧,一会儿被人发现可就惨了。”接着,听到一阵越来越轻的脚步声。我为伙伴们的悲惨命运感到非常难过又为人类的狠毒儿愤怒。惊恐和愤怒聚集在我的心中,我昏了过去……

等我再次醒来,发现自己又变成了一棵树。做一棵树也挺好,不会像鸟儿一样……我还在为之前的遭遇心有余悸。还好我只忧伤了一会儿,就没事了。我和四周的树玩耍嬉戏,不一会就和他们成为了好朋友。我们正玩得起劲,只见不远处来了一群工人。哦,不!是伐木工人!只见伐木工人斧子一挥,锯子一拉,无数颗树就这样倒下了。最后连我和我四周的树都不可避免。心痛和愤怒交加在我心头,我又昏了过去……

我第三次睁开眼,发现天已亮,我不再是鸟儿,不再是树木。我心中有一种说不出的难受。动物和植物都是人类的朋友,可为什么人类要伤害他们呢?

那些破坏环境的人,我想对你们说,不要再伤害大自然了!

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更多相似作文

篇1:环境问题的英语作文有哪些

全文共 1944 字

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导语:环境问题英语作文有哪些?以下是小编精心为大家整理的有关环境问题的英语作文,希望对大家有所帮助,欢迎阅读。 环境问题的英语作文篇一

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. 环境问题的英语作文篇二

Nowadays, more and more people realize it`s necessary and important to protect the environment. Also,there are some people who don`t pay attention to hygiene and they can`t stop littering the rubbish casually or spitting everywhere all the time.And in addition, there are a few factories often cutting down the trees, discharging chemicals and dirty water and so on.And it causes many problems like the Greenhouse Effect.If they do these day by day and our life will be harder and harder,so we have to stop them. To stop them we can put up commonweal advertisements and tell them the detriment of destroying the environment.So we can start from now to make a beautiful life.

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篇2:植树节活动英语日记

全文共 829 字

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导语:3月12号的植树节你种树了吗?下面是yuwenmi小编为大家整理的优秀英语日记,欢迎阅读与借鉴,谢谢!

March 12th is Tree Planting Day. This year our school bought enough trees before that day . On that day , we didnt had classes . The teachers and our classmates planted trees around our school.

We began to planted trees as soon as we got to school . Some students dug the holes . Some students put the trees into the holes.Some students put the earth back to the holes. Then we pushed the earth hard with our feet . At last we watered the trees as much as possible.

From then on we looked after the trees carefully and the trees grew very well . It made our shcool more beautiful .And How happy we are !

【参考翻译】

三月十二号是植树节。在这之前我们学校今年买了足够的树。那天,我们不用上课。老是和同学一起在学校周边种树。

我们一到学校就开始种树。有的学生挖坑,有的把树放进坑,有的学生把土产回坑里。然后我们用脚努力地把土踩结实。最后我们给树浇尽可能多的水。

从那时起,我们小心翼翼的照顾那些树,树也长得很好。它让我们的学校变得更加美丽。我们是多么的开心啊!

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篇3:描写环境问题的英语作文

全文共 1255 字

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The pictures symbolically illustrate pollution is becoming increasingly serious around the globe. In the first cartoon, a man is scorching the earth on a chimney. In the second one, a famous ancient Chinese poet, Wang Bo is astonished by the heavy smoke poured by chimneys into the air and dirty river polluted by a factory. We are informed that “the autumn river is the same color with the sky”。

The drawer is sending a message about the significance of the need for everyone to fight against the danger of environmental pollution. There is no denying that the industry is indications of civilization, proGREss and development. Unfortunately, as industry develops, so will the number of factories, and the amount of industry pollutants. We are so development-oriented that we almost can sacrifice our blue sky and pure water in order to obtain a little material gain.

As a consequence, it is imperative for us to take drastic actions. On the one hand, the factories should be equipped with devices which can dispose of waste gas and water so as to prevent them from polluting our planet. On the other hand, there should be an increasingly loud voice from the public for firm actions against poisonous gas sent off and unhealthy water polluted by factories.

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篇4:介绍城市环境英语ThecitylifeIexpec500字

全文共 602 字

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

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篇5:地球一小时活动英语作文

全文共 1355 字

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Earth Hour is an activity proposed by WWF to cope with global climate change, hoping that individuals, communities, businesses and governments turn off lights from 20:30 to 21:30 on the last Saturday of March each year, to show their support to action on climate change. This is a global activity that spreads all over the world quickly after it started in Sydney in 2007.Earth Hour aims to make people aware of the threat posed by climate change and make them aware of a small movement of personal and corporate will have profound impact to the environment.

地球小时”是由世界自然基金会应对全球气候变化发起的一项活动,希望个人,社区,企业和政府每年3月的最后一个星期六从20:30至21:30关灯,以示支持应对气候变化的行动。这是一项全球性的活动,2007年始于悉尼后就迅速传遍世界。“地球一小时”旨在使人们意识到气候变化带来的威胁,以及使他们认识到个人和企业的细小行为将对环境产生深远的影响。

n China, there are many cities taking part in this activity,especially the large cities, such as Beijing, Shanghai, and Guangzhou. Many citizens consciously turn off lights in the hour and they go out for a walk or some friends gather together to have fun. In college, students will hold some activities to attract students out of dormitory. Earth Hour has variety of activities, but the ultimate goal is the same, that is focusing on climate change and protecting the environment for individuals.

在中国,有很多城市参加了这项活动,特别是大城市,比如北京,上海和广州。很多市民在这期间有意识的关灯,他们出去散步或者和朋友聚在一起玩。在大学里,学生们也举行了一些活动吸引学生离开宿舍。地球一小时有多种活动,但是最终的目的都是一样的,都是关注气候变化和保护环境。

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篇6:高三关于环境污染英语作文带翻译

全文共 2159 字

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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

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篇7:怎样改善环境英语作文

全文共 1213 字

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Protection of EnvironmentThere 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.

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篇8:保护环境初中英语作文

全文共 732 字

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Protect our environment

In the last several decades, our earth has been extremely polluted, such as air pollution, water pollution, noise pollution and so on. In recent years, the extreme weather becomes more and more frequent. Winter gets colder and summer becomes hotter and it rains more frequently. All of these warn us that protecting the environment is a serious and emergent event. As our general people, we should build proper lifestyle. We should pay attention to water and light saving. When we go out, we should firstly choose the public transportation. The most important is that we must realize that we can do a lot of things to protect our environment. Its our duty to make our home better. Let’s change from ourselves.

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篇9:关于环境保护问题的英语作文

全文共 926 字

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

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

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

Let’s make our world more and more beautiful.

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

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

让我们让我们的世界变得越来越美丽。

[关于环境保护问题英语作文

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篇10:保护环境污染英语作文

全文共 905 字

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Today, as the development of the technology, people live a much better life than before, the average wage is promoted highly. The economy develops at the cost of polluting the environment, we can see the pollution everywhere, like the river water is dirty, the situation is so serious that we must take some action to control the environmental pollution. First, we should not throw away the rubbish, whenever we have rubbish at hand, we should keep the habit to throw it into the dustbin, sometimes the garbage can be recycled. Second, the government should make some measure to punish the industry which is not deal with the pollution well. With the government’s intervention, the businessmen will pay special attention to the pollution and dare not to ignore it. Protecting the environment needs everyone’s effort, to ourselves and our offspring’s health, we must take action to protect the environment.

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篇11:望牛墩新联小学英语教学研讨活动观后感

全文共 1146 字

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一天很快又将过去

总得去理一理

快乐的笑容

不知飘在哪里

你要悄悄问问自己

总得要去理一理

……

这是偶尔在网上看到的某一小学勉励孩子们的一首小诗。该校的理念是:让学生学会学习,让孩子每天像整理家务一样整理自己的学业。

此次活动的时间虽然不长,为了不让我的感触悄悄溜走,我也试着去问自己,我确实需要去理一理我对本次活动的思考与反思。

此次活动的主题是文本重构。先由新联小学的莫艳芬老师上一节汇报课,内容是PEP教材五年级下册Unit 4的 What are you doing?的对话课,随后,张凝老师为我们作了点评,并就文本重构为我们作了精彩而实用的讲座。

本次教研活动,让我感叹最深的是:教师能走多远,学生就能走多远!在平时的对话教学中,我们应该为学生创设一个又一个贴近生活,真实有趣的情境。只有有效的情境创设,才能让学生有重大突破的可能,由老师逼着说转化为情境使然,乐意说。也只有基于文本基础的情境创设才是有效的,才可以优化语言的输出。在充分考虑教学各环节的设计下,让学生的语言是有意义的,让学生的语言是有情感的。由此可见,创造语境乃是英语对话教学的一大核心,如何创造有效的语言情境也是我们面临的一大难题。只重情境再造,而忽略的文本重构,往往会造成教材文本情境的浪费。而张凝老师的讲座,清晰地向我们验证了:教师有多远,学生就能走多远!

反思一:如何创设语言情境,优化语言输出

在英语教学中,要优化语言输出必定离不开优质的语言输入。这种输入必须基于教学目标,合理创设语言情境,才可以让学生更好地接受。而听了张凝老师的讲座,引发了我的诸多思考,如何创设语言情境,优化语言输出,我们需要做到以下三点:一是给学生搭建一个基于文本的语言支架。二是给学生提供基于学情得语料。可以根据学生的兴趣爱好进行补充,可以激活学生的旧知,可以参考学生的生活经验,还可以从学生的心灵体验出发……三是教师要给学生展示各色各样的范本。最简单的莫过于诵读示范了,还可以进行表演示范和体态语的示范。总之,在创设情境时,要多关注学生的心灵,倾听学生的心声,学生需要的,适合学生的才是最好的。

反思三:如何做最好的自己?

课堂上,我必须有一个清晰的自我定位。如果连自己都无法认清自己在课堂上的地位,还怎么去教学生呢?如果自己都感到迷惑了,感到痛苦了,那么很有可能把学生也弄迷惑了,害惨了。教师不仅仅是教案的执行者,更要做一个明白人?

在平时,要极力做一名反思型教师。反思是一种美德,学会自我反思是一个老师的必备素质。两千多年前的孔夫子的就我们教导“吾日三醒吾身”,可见不断反思,才能逐渐进步。

最后引用李开复博士的一句话:“有勇气来改变可以改变的事情,有胸怀来接受不可改变的事情,有智慧来分辨两者的不同”,做最好的自己,做快乐的自己,相信自己一定可以成功!

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篇12:如何保护环境英语作文

全文共 514 字

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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.

现在,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,我们可以骑自行车上学或者步行,这样还可以锻炼身体。有时间的话可以少用电梯,多爬楼梯。我们不仅能锻炼身体,也能保护我们的环境。

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篇13:初一英语作文:学校植树活动

全文共 766 字

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March 12th is Tree Planting Day. This year our school bought enough trees before that day. On that day, we didn‘t had classes. The teachers and our classmates planted trees around our school.

We began to planted trees as soon as we got to school. some students dug the holes. Some students put the trees into the holes.

Some students put the earth back to the holes. Then we pushed the earth hard with our feet. At last we watered the trees as much as possible.

From then on we looked after the trees carefully and the trees grew very well. It made our shcool more beautiful .And How happy we are!

3月12日是植的一天。今年我们学校买了足够的树在那一天之前。在那一天,我们没有课。我们学校周围的老师和同学们种植的树木。

我们开始种植树木一旦我们到达学校。一些学生挖洞。一些学生把树放进洞。

一些学生把地球回洞。然后我们把地球与我们的脚。最后我们尽可能多的树木浇水。

从那时起我们仔细照顾树木,树木生长得很好。它使我们的学校更美丽。我们是多么快乐!

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篇14:户外活动的英语

全文共 1278 字

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Today is a happy day. Why is it a happy day today? This afternoon, our whole school will go to the cinema to see the movie. Our class is delighted after hearing the news, and, of course, Im very happy. I really want to arrive in the afternoon. Unfortunately, it cant be.

In the afternoon, the students came to school spirited. We sat in the classroom for a while, and suddenly heard the radio saying, "please send the class teacher back to class to organize the students." In a few minutes, I began to say, "in order to reduce the burden of learning, our school decides to go to a movie theater this afternoon, and prepare the related preparations for the students." we are really excited. Jump up with joy.

We got in line and went to the cinema, and every student found a place to sit down. The film began, and I looked at the screen without a glance. The story was about the Eight Route Army playing the Japanese,... I gave the film evaluation is also good, very exciting, just began to fight a little terror, but must still look good.

The film was finished. We should return to the classroom. We got back in line and returned to the classroom. The teacher finished his homework and went home from school. I really want the school to organize such fun extracurricular activities.

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篇15:关于保护环境的英语作文:WhitePollution

全文共 1004 字

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白色污染White Pollution

With the remarkable improvement of people’s living standard, people tend to buy more goods. As a result, a plenty of plastic bags are threw around and caused white pollution. Not only does it do harm to the environment, but also give people the impression that the city is dirty. As we all known, plastic bags are non-biodegradable material and it will stay in the soil for a long time. What’s worse, the poison released from the plastic bags is harmful.

随着人民生活水平的显著提高,人们购买的商品越来越多。所以,到处都是塑料袋,造成白色污染。塑料袋不仅污染环境,也给人城市很脏的印象。众所周知,塑料袋是不可生物降解的材料,会长期留在土壤里面。更糟糕的是,从塑料袋中释放的有毒物质是有害的。

Being current generation of young people, we should take measures to control the use of plastic bags .We can substitute them with cloth bags or reuse them. And the government can make rules to avoid using them. If we do our best, the use of plastic bags can be reduced, thus the white pollution can be controlled.

作为当代年轻的一代,我们应该采取措施来控制塑料袋的使用。我们可以用布袋来替代塑料袋或者重复使用。政府也可以制定规定来避免使用塑料袋。如果我们努力做好,塑料袋的使用就可以减少了,从而白色污染也会得到控制。

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篇16:介绍城市环境英语城市生活CityLife1123字

全文共 1355 字

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Depending on personal experience, personality type and emotional concern, we find that some people hold the idea of living in the country, while others prefer living in the city. In my opinion, I prefer the city life, though it has advantages and disadvantages.

First of all, city life is very colorful. City is the center of the surrounding area. So, it is also the most booming place having the best things. There are many great things and wonderful activities in the city, while there isn’t in the country. For example, there are KFC, wonderful shopping mall, delicious food from various places, dancing club, different kinds of activities and so on. We can also learn the culture from all the countries. Despite city life is so wonderful, it still has many disadvantages. Nowadays, with the improvement of people’s living standard, people have more cars and more people come to city, and then the city becomes more and more crowd. As a result, traffic jam emerges, which makes great inconvenience for people to go out. What’s worse, the air pollution becomes serious day by day, which is bad for people’s health.

To sum up, every coin has two sides. Living in the city also has good side and bad aspect. Whether like living in city or not depends on individual thinking. As myself, I like living in city though I know the disadvantage of living in city.

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篇17:环保活动感受英语

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In modern society, we tend to bee more and more aware of our living environment or physical environment, because we are not clean as before。 So many people now choose their house as to its environment but not its location and expenses to afford it。 As we all know, the environment pollution is more and more serious during these years, what we could do is to make great efforts in protecting environment gradually。 As to government pollution, as to mon people。 We also try to protect it and make it remain clean。 Although we have managed to protect the environment to a certain extent。 It is still a very long way to go。

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篇18:当前,威胁人类生存的十大环境问题是

全文共 2072 字

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(一)全球气候变暖

由于人口的增加和人类生产活动的规模越来越大,向大气释放的二氧化碳(CO2)、甲烷(CH4)、一氧化二氮(N2O)、氯氟碳化合物(CFC)、四氯化碳(CCl4)、一氧化碳(CO)等温室气体不断增加,导致大气的组成发生变化。大气质量受到影响,气候有逐渐变暖的趋势。由于全球气候变暖,将会对全球产生各种不同的影响,较高的温度可使极地冰川融化,海平面每10年将升高6厘米,因而将使一些海岸地区被淹没。全球变暖也可能影响到降雨和大气环流的变化,使气候反常,易造成旱涝灾害,这些都可能导致生态系统发生变化和破坏,全球气候变化将对人类生活产生一系列重大影响。

(二)臭氧层的耗损与破坏

在离地球表面10~50千米的大气平流层中集中了地球上90%的臭氧气体,在离地面25千米处臭氧浓度最大,形成了厚度约为3毫米的臭氧集中层,称为臭氧层。它能吸收太阳的紫外线,以保护地球上的生命免遭过量紫外线的伤害,并将能量贮存在上层大气,起到调节气候的作用。但臭氧层是一个很脆弱的大气层,如果进入一些破坏臭氧的气体,它们就会和臭氧发生化学作用,臭氧层就会遭到破坏。臭氧层被破坏,将使地面受到紫外线辐射的强度增加,给地球上的生命带来很大的危害。研究表明,紫外线辐射能破坏生物蛋白质和基因物质脱氧核糖核酸,造成细胞死亡;使人类皮肤癌发病率增高;伤害眼睛,导致白内障而使眼睛失明;抑制植物如大豆、瓜类、蔬菜等的生长,并穿透10米深的水层,杀死浮游生物和微生物,从而危及水中生物的食物链和自由氧的来源,影响生态平衡和水体的自净能力。

(三)生物多样性减少

《生物多样性公约》指出,生物多样性“是指所有来源的形形色色的生物体,这些来源包括陆地、海洋和其他水生生态系统及其所构成的生态综合体;它包括物种内部、物种之间和生态系统的多样性。”在漫长的生物进化过程中会产生一些新的物种,同时,随着生态环境条件的变化,也会使一些物种消失。所以说,生物多样性是在不断变化的。近百年来,由于人口的急剧增加和人类对资源的不合理开发,加之环境污染等原因,地球上的各种生物及其生态系统受到了极大的冲击,生物多样性也受到了很大的损害。有关学者估计,世界上每年至少有5万种生物物种灭绝,平均每天灭绝的物种达140个,估计到21世纪初,全世界野生生物的损失可达其总数的15%~30%。在中国,由于人口增长和经济发展的压力,对生物资源的不合理利用和破坏,生物多样性所遭受的损失也非常严重,大约已有200个物种已经灭绝;估计约有5000种植物在近年内已处于濒危状态,这些约占中国高等植物总数的20%;大约还有398种脊椎动物也处在濒危状态,约占中国脊椎动物总数的7.7%左右。因此,保护和拯救生物多样性以及这些生物赖以生存的生活条件,同样是摆在我们面前的重要任务。

(四)酸雨蔓延

酸雨是指大气降水中酸碱度(PH值)低于5.6的雨、雪或其他形式的降水。这是大气污染的一种表现。 酸雨对人类环境的影响是多方面的。酸雨降落到河流、湖泊中,会妨碍水中鱼、虾的成长,以致鱼虾减少或绝迹;酸雨还导致土壤酸化,破坏土壤的营养,使土壤贫瘠化,危害植物的生长,造成作物减产,危害森林的生长。此外,酸雨还腐蚀建筑材料,有关资料说明,近十几年来,酸雨地区的一些古迹特别是石刻、石雕或铜塑像的损坏超过以往百年以上,甚至千年以上。世界目前已有三大酸雨区。我国华南酸雨区是唯一尚未治理的。

(五)森林锐减

在今天的地球上,我们的绿色屏障——森林正以平均每年4000平方公里的速度消失。森林的减少使其涵养水源的功能受到破坏,造成了物种的减少和水土流失,对二氧化碳的吸收减少进而又加剧了温室效应。

(六)土地荒漠化

全球陆地面积占60%,其中沙漠和沙漠化面积29%。每年有600万公顷的土地变成沙漠。经济损失每年423亿美元。全球共有干旱、半干旱土地50亿公顷,其中33亿遭到荒漠化威胁。致使每年有600万公顷的农田、900万公顷的牧区失去生产力。人类文明的摇篮底格里斯河、幼发拉底河流域,已由沃土变成荒漠。中国的黄河流域,水土流失亦十分严重。

(七)大气污染

大气污染的主要因子为悬浮颗粒物、一氧化碳、臭氧、二氧化碳、氮氧化物、铅等。大气污染导致每年有30-70万人因烟尘污染提前死亡,2500万的儿童患慢性喉炎,400-700万的农村妇女儿童受害。

(八)水污染

水是我们日常最需要,也上接触最多的物质之一,然而就是水如今也成了危险品。

(九)海洋污染

人类活动使近海区的氮和磷增加50%-200%;过量营养物导致沿海藻类大量生长;波罗的海、北海、黑海、东中国海(东海)等出现赤潮。海洋污染导致赤潮频繁发生,破坏了红树林、珊瑚礁、海草,使近海鱼虾锐减,渔业损失惨重。

(十)危险性废物越境转移

危险性废物是指除放射性废物以外,具有化学活性或毒性、爆炸性、腐蚀性和其他对人类生存环境存在有害特性的废物。美国在资源保护与回收法中规定,所谓危险废物是指一种固体废物和几种固体的混合物,因其数量和浓度较高,可能造成或导致人类死亡,或引起严重的难以治愈疾病或致残的废物。

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篇19:中考英语作文:关于环境保护问题

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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.

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篇20:小学生关于保护环境的英语作文

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星期五放学后,我和妈妈去公园散步。

After school on Friday, my mother and I went for a walk in the park.

公园里的花散发着淡淡的清香,小草从地下钻出来了,柳树摇着绿色的长辫子。但是我发现有人带着小狗在草地上跑着,有的小狗在草地上随地大小便,草地就搞得很脏,小狗的粪便污染了公园的环境

The flowers in the park exudes a touch of fragrance, the grass from the underground drilling, willow shook his green long braids. But I found someone with a dog run on the grass, some of the dog in the grass on the grassland is defecate, get dirty, dog feces pollution of the environment of the park.

我想我们每一个去公园的人都应该管号小动物,不要随意污染环境,这样我们的地球才会更加美丽。

I think every one of us went to the park to the people should be small animal, do not pollute the environment freely, so that our earth will be more beautiful.

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