和谐环境英语作文推荐20篇

Now, people dont speak hygiene, make the earth became very clean.

Factory waste water into the river discharge, discharge waste water will not think about it, if people drink the water, what will happen?

Also, people cut down trees, on the lawn, people will think of these things, without the trees, how do we have the fresh air and oxygen, no grass we how green home! Besides, if sandstorm comes, without the trees blocking, what will become of our home.

Why are both street trash can, this is to remind people not to throw rubbish everywhere, put the rubbish in the garbage can. But, a lot of people love throwing garbage everywhere, this kind of behavior not only damage the image of our home, what also polluted the earth again.

I want to tell everyone: "protecting the environment is to love life!" To protect the environment, we should start from the side, starts from me, to build our homes more beautiful!

现在，人们都不讲卫生，使地球变得很不干净。

工厂里的废水向河里排，排废水的人会不会想想，如果人类喝了那些水，会怎么样?

还有，人们砍伐树木，踏入草坪，做过这些事的人会不会想想，没有了树木我们怎么有新鲜的空气和氧气，没有了小草我们怎么绿化家园啊!再说，如果沙尘暴来了，没有了树木的阻挡，我们的家园会变成什么样。

为什么街道旁都有垃圾桶，这是提醒人们不要随地乱扔垃圾，把手中的垃圾扔进垃圾桶里。但是，很多人都爱随地扔垃圾，这种行为不仅损坏我们家园的形象，还让地球再一次的被污染。

我想告诉大家：“保护环境就是爱护生命啊!”要想保护环境，就要从身边做起，从我做起，把我们家园建设得更加美丽吧!

Our modern city is too crowded， and to solve the problem， three proposals are put forward. Most people believe that we should fist practise the policy “Late Marriage” and “One Couple， One Child” in order to reduce the birth rate. Secondly， the city government must have a tight control over rural people entering cities to engage themselves in trade or do various physical jobs so as to lessen the pressure on the city caused by the increased population. Finally more and more people suggest that living blocks with shopping centers， schools， hospitals as well as cinemas and theatres round them or even satellite towns should be built in city suburbs or the countryside round the cities. In this way city citizens will be encouraged to move there to live and work. If these three proposals are well carried out， the city population will be greatly reduced.

我们现代城市太拥挤了，要解决这个问题，提出了三点建议。大多数人认为我们应该在政策上“迟婚”和“一对一”，以降低出生率。其次，城市政府必须严格控制农村人口进入城市，从事贸易或从事各种体力劳动，减少人口增长造成的压力。最后，越来越多的人建议，居住在购物中心、学校、医院、电影院、剧院等生活街区，城市郊区或郊区的城市应该建在城市郊区或城市周边的城市。在这个方式中，城市居民将被鼓励在那里生活和工作。如果这三项建议都很好地实施，城市人口将大大减少。

[保护环境英语作文如何减少城市污染

春天来到了，花儿开的又红又大，像在比赛谁开的颜色最美丽又漂亮呢;小草己经长出又绿又嫩了;大树也不令外，长的高大又强壮。小鸟在大树上歌唱，小蜜蜂在花从中忙忙碌碌地工作，为人们酿造出甜甜的蜂蜜来。

Spring is coming, the large red flowers, like in the game who the most beautiful colors and beautiful; the grass has grown out of the trees are green and tender; not so long, tall and strong. Birds are singing in the trees, in the flowers bees in bustling about, for people to make sweet honey.

谁在这儿叹息呀?原来是小鸟，它是在为人类而叹息。因为大森林的树木要被人们砍伐了。如果大树被砍完了，森林里的动物就没有了家。如果大风来了没有了树木的帮助，房屋要倒塌。如果树木被砍了，人们就听不到小鸟叽叽喳喳的叫声，这个世界就只有人类在说话。

Who here sigh? The birds, it is for the human sigh. Because the forest of trees to be cut down. If the tree was cut down in the forest, the animal has no home. If the wind to help without trees, houses collapsed. If the trees were cut down, people can not hear the birds chirping, the world is only a human talking.

请大家爱护环境吧。

Let us care for the environment.

2005年3月份开始，圆明园内上演了一幕骇人的情景：几十台挖掘机正在疯狂地破坏着圆明园的景观，所有湖底被挖开，然后铺满了大片白色塑料，四周用水泥严密封闭。他们这样做是为了防止湖水渗漏。专家说，这是一次彻底的、毁灭性的生态灾难和文物破坏。

中国古典园林在世界上拥有无可取代的科学价值和文化价值，具有非常丰富的文化内涵和历史底蕴。圆明园是有史以来中国最杰出的园林。“天人合一”、“师法自然”是中国古典园林建设的基本思想，“巧夺天工”、“宛若天成”是中国古典园林的基本特点，“浑然一体”、“古朴沧桑”是中国古典园林的艺术境界，“泱茫无穷”、“气象万千”是中国古典园林生态效应的美学感受。显然，开放的园林生态系统与周围自然环境的和谐统一至关重要，对于圆明园而言，可持续发展和生态平衡已经接受了几百年的历史考验，从生态学的角度看，物质、能量、信息的交流是不可缺少的，园林水系和外部水系、地下水系的沟通是最重要的“生态流”。

中国文化是有“意境”的文化，中国古典园林尤其如此。这次圆明园大规模铺设白色塑料的一个严重后果就是彻底破坏了“天人合一”的意境，圆明园那种“浑然天成”、“自然天真”、“恬淡清雅”的和谐感受就完全没有了，损害了圆明园独特的旅游欣赏价值，如果不立即改正，后果不堪设想。

假如你是李华，你的笔友Mike从电视上得知前段时间北京多个地方出现雾霾(haze)，非常担心，写E-mail询问有关情况，请回复。回复应包括以下要点：

1.实况描述;

2.对生活造成的影响;

3.成因简析与教训;

4.你个人的情况。

One possible version:

Dear Mike，

Thank you very much for your concern. Last month several places in Beijing were blanketed(覆盖)with thick yellow fog. Everything around disappeared from our sight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and se{C}{C}

{C}niors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didn’t get any health problems in the haze because I stayed mostly indoors. But to make a significant change we really have to do more to protect our environment. To live a bette{C}{C}

{C}r life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.

Regards!

Yours,

Li Hua

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.

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.

[关于环境保护的优秀英语作文

国家正在提倡"节约型社会",你将以"How to build an economized society"为题向21世纪报投稿,文章应包含以下要点,可适当发挥,谈谈自己其他的一些想法或做法.

要点提示:

节电:及时关闭灯,电扇,电脑等;

节水:随手关水龙头,废水利用等;

节能:拒用塑料袋,废物回收等;

自己的见解

注意:1.词数:100左右.短文标题,开头已为你写好,但不计入总词数;

2.内容可适当发挥,注意行文连贯.

How to build an economized society

Our government is aiming to build an "economized society". I think it is every citizens duty to work hard to achieve this goal

Possible version:

How to build an economized society

Our government is aiming to build an "economized society". I think it is every citizens duty to work hard to achieve this goal.

To build an economized society, we must keep the following points in our minds. Firstly,make sure that the lights and the electric fans are turned off when there is no one in the room. Set the room temperature at above 26℃. Remember to turn off the computer when you are not using it. Secondly, try to form the habit of turning off the tap after it is used. Use basins when washing faces or vegetables. Thus the water can be used again to clean toilets or water flowers. Thirdly, it will be good enough to use a basket instead of plastic bags when you go to the market. As we know, a basket can be used many more times.

In a word, we should try our best to build an economized society.

Recently I found out that some bad things happened in our school.

At ordinary times is very neat and clean campus, has recently become some dirty, some corner or in the corridors, students can be seen the plastic bags used to hold things, eat some fruit peel, cabinet and throw away the packing bag of after loud snacks. Is each class in our school there is a certain region responsible for cleaning, clean, will arrange the students per class every day the rubbish is certainly in the classmate after cleaning the health, and others left, I think the quality of the students really is very low, I dont know to cherish other peoples work achievement, dont know how to protect the campus environment.

Students, not to be good, not to be, not to be evil small but to be, everybody join hands together, protect our campus environment together!

最近我发现我们的学校发生了一些不好的现象。

平时十分整洁干净的校园，最近却变的有些脏兮兮的，一些角落里或者是走廊里，都能看到同学们用来装事物的塑料袋，还有一些水果皮、碎纸屑和吃完小零食以后扔掉的包装袋。我们学校是每个班都有一定的卫生打扫的负责区域的，每天每班都会安排学生打扫，这些垃圾肯定都是在同学打扫完卫生之后，又有人丢下的，我觉得这些同学的素质真的很低，都不知道珍惜别人的劳动成果，不知道保护校园的环境。

同学们，不以善小而不为，不以恶小而为之，大家携起手来，共同保护我们的校园环境吧!

Directions: Please write a short essay entitled How to Protect the EnvironmentYou should write at least 120 words following the outline given below.

1．近年来地球环境日益恶化，人类面临很多突出的环境破坏问题 2．环境恶化的原因有哪些。

3．提出改善环境的建议。

The global is more and more warmer.The river is more and more dirtier.In the past years,the environment was more and more worst.The human beings are facing many pollution problems that are standing out.

We always see that the river is covered with white rubbish,the water is against clean. Roads are dirty,too.I can imagine the future that is covered with rubbish.People through rubbish away into the river.The industry let off sewage。People on the car through the rubbish away form the window of the car.Rubbish is waving。People enjoy using refrigerator that is the cause of that the global is more and more warming.We should get together to do something to improve our environment.We can plant so many trees that the temperature of the global will lower.Trees will reduce the crash of the global.

Punish the person who through away the rubbish around the roads instead of the rubbish bin.

Stick out to do the things above,the environment will be better and better.

My house have a garden downstairs, where flowers bloom all the year round, is the main place to neighbors leisure entertainment. The children often play there, I also liked to play there.

Homework today, I came to visit my good friends in the garden, flowers, they found flowers side there are a lot of rubbish. Think of "the teacher said to protect the environment is the responsibility of each one of us", I immediately ran over to pick up all the rubbish into the dustbin, at this moment, the other side of the garden came the cries of children: Peng Linqian, come and play! I cant help but stopped, the in the mind like two little quarrelling, pick up, afraid of see after children, said I was picking up litter. Dont pick up, let the garbage lying there quietly? Because of this problem, let me in a quandary. Pick up or not pick up? Ask mom and dad to say again!

Mom and dad is walking toward the side, and the father said, "of course it is important to environmental protection, you should start from around things, do not litter. If you see a garbage on the ground, should pick it up, so that you do to protect the environment." Mom said so.

Mom and dad gave me courage. Environmental protection is more important than face, they would say I am picking up litter and let them say! I dont care now. If a man pick up a garbage, more people will be able to pick up more junk. Earth must be the earth more than it is now clean and more beautiful.

Without hesitation, I run past, all the trash in the underground (bin) back to their home. Then, the people around to me to approval.

我家楼下有一个花园，那里一年四季都有鲜花盛开，是邻居们休闲娱乐的主要场所。小朋友们也经常在那里嬉戏，我也特别喜欢到那里玩。

今天做完作业，我又来到花园里看望我的那些好朋友——花，却发现花儿的身边有很多垃圾。想到老师说的"保护环境是我们每一个人应尽的责任"，我立刻跑过去准备把垃圾都捡起来送进垃圾箱，这时，花园的另一边传来小朋友的喊声：彭林茜，快来玩!我不禁停住了脚步，心里像有两个小人在吵架，捡，怕小朋友看见后，说我是捡垃圾的。不捡，就让垃圾静静的躺在那儿?就因为这个问题，让我左右为难。捡还是不捡?问问爸爸妈妈再说吧!

爸爸妈妈正好也朝这边走来，爸爸说："那当然是环保重要，你要从身边的小事做起，不要乱扔垃圾。如果看到地上有垃圾，当然应该捡起来，这样你就为保护环境做了贡献。"妈妈也这么说。

爸爸妈妈的话给了我勇气。环保比面子更重要，他们要说我是捡垃圾的就让他们去说吧!我现在不在乎了。要是一人捡一次垃圾，更多的人就能捡更多的垃圾。那时候的地球一定比现在的地球更干净，更美丽。

我毫不犹豫地跑过去，把地下的垃圾全部送回了他们的家(垃圾箱)。这时，周围的人们向我投来赞许的目光。

写作题目

Individuals can do nothing to improve the environment; only governments and large companies can make a difference. To what extent do you agree or disagree?

范文

Nowadays, an increasing number of people are concerned about environmental protection and regard it as one of the most important challenges. However, whether only governments and big firms have resources and powers to preserve our environment is a controversial issue. My view is that every single citizen could also make a huge difference.

In the first place, it is clear that it is human activities that have the greatest impact throughout the history. Both environment contamination and conservation are the long-term process, and no single government or big company can meet this challenge alone. So whoever created the problem should be responsible for solving it; environment protection needs every one of us to continuously participate in.

Moreover, the publics wills and behaviors have critical influence on governments policies and companies strategies. For example, if everyone says no to plastic shopping bags and paper cups, the companies that manufacture such products will switch to environmental-friendly substitutes in order to survive in the market.

[关于改善环境质量英语作文

With the development of science and technology, peoples living standards are getting higher and higher, environmental problems are more and more serious, you found it?

Lets talk about water pollution! Gas stations and other factories always put the water without purification to the river, resulting in small fish without home. 50% of our country can not use clean water, this figure is not terrible? So saving water is imminent, you still waste it?

Lets talk about the problem of reducing trees! Now a lot of trees have been cut down by us, so the dust storm came, the flood came, nature to revenge us. We all know that the use of disposable chopsticks are made of trees, if each of us every day can use a pair of disposable chopsticks, one year down can keep ten thousand trees, see this time, you are still presumptuous Behavior?

Lets take a look at the sky, the blue sky is gone, the white clouds are hidden, is it really gone? No, they are just "smoke" by the smoke from the factory.

These are water caused by it? Are our own human beings, if not felling of trees, garbage, a reasonable discharge of purified sewage, I believe our planet will be beautiful. Protect everyone from the earth, let us work together to protect the environment!

随着科技的发展，人们的生活水平也越来越高，环境问题也越来越严重了，你们发现了吗?

咱们就来说说水被污染的问题吧!加油站和其他工厂总是把未经过净化处理的水排放到河里，导致小鱼没有了家。我们国家有百分之五十一的人都无法用到干净的水，这样的数字难道不可怕吗?所以节约用水已是迫在眉睫，你还在浪费吗?

我们再来说说树木减少的问题吧!现在好多树木已经被我们砍伐叻，所以沙尘暴来了，洪水来了，大自然来报复我们了。我们都知道使用的一次性筷子都是用树木做的，如果我们每个人每天可以少用一双一次性筷子，一年下来就可以保留千万棵树木，看到这时，你还在放肆自己的行为吗?

我们再来看看那天空，蓝蓝的天不见了，白白的云也藏起来了，是真的没有了吗?不是的，它们只是被工厂排放的浓烟给“保护”起来了。

这些都是水造成的呢?都是我们人类自己，如果不乱砍伐树木、垃圾，合理排放净化过的污水，相信我们的地球就会很美。保护地球人人有责，让我们一起来保护环境吧!

Children’s education has been concerned by the public all the time. As they

are the future and will decide a country’s destiny, so the environment matters

so much to them. Most parents expect the school can provide the children a good

learning environment and ignore the importance of home education.

School provides the children a direct stage to receive education. In the

school, the teachers pass knowledge and educate them the right value. The

children know their task and as everybody around them focus the attention on

study, so they are affected by each other and have the strong desire to

learn.

Home education is easy to be ignored by most parents, they think it is the

teachers’ duty to educate children. Actually, most criminal teenagers have

family issues. Parents haven’t set good example for the kids. Sometimes they are

even the trouble makers. Without love, teenagers won’t grow up as the strong

people.

Both school and family environment are important for the children, and they

need to be nurtured with the good examples and learn knowledge.

World Environment Day was established by the United Nations General Assembly in 1972 to mark the opening of the Stockholm Conference on the Human Environment. Another resolution, adopted by the General Assembly the same day, led to the creation of UNEP .

World Environment Day can be celebrated in many ways, including street rallies, bicycles parades, green concerts, essay and poster competitions in schools, tree planting, recycling efforts, clean-up campaigns and much more.

Heads of State, Prime Ministers and Ministers of Environment deliver statements and commit themselves to care for the Earth. More serious pledges are made which lead to the establishment of permanent governmental structures dealing with environmental management and economic planning. This observance also provides an opportunity to sign or ratify international environmental conventions.

World Environment Day, commemorated each year on 5 June is one of the principal vehicles through which the United Nations stimulates worldwide awareness of the environment and enhances political attention and action.

The World Environment Day theme selected for 2004 is Wanted! Seas and Oceans - Dead or Alive? The theme asks that we make a choice as to how we want to treat the Earths seas and oceans. It also calls on each and every one of us to act. Do we want to keep seas and oceans healthy and alive or polluted and dead?

The main international celebrations of the World Environment Day 2004 will be held in Barcelona, Spain in close collaboration with the Universal Forum of Cultures. UNEP is honoured that the City of Barcelona, the Catalan Regional Government and the Government of Spain will be hosting this important United Nations day.

世界环境日成立于1972年由联合国大会开幕纪念斯德哥尔摩人类环境会议。另一个决议,联合国大会通过的同一天,导致联合国环境规划署的创建。

庆祝世界环境日可以在许多方面,包括街头集会,自行车游行、绿色音乐会、论文和海报比赛在学校、植树、回收工作,清理活动等等。

国家元首、总理和部长环境提供声明和承诺照顾地球。更严重的承诺是导致建立永久性政府结构处理环境管理和经济规划。这个仪式也提供了一个机会签署或批准的国际环境公约。

6月5日世界环境日,每年纪念的主要车辆通过联合国促进全球环境意识和提高政治关注和行动。

2004年世界环境日的主题选择想要的!海洋和海洋——死的还是活的?主题要求我们做出选择,我们要怎样对待地球的海洋和海洋。它还要求我们每一个人采取行动。我们想要保持海洋和海洋健康和活着的或污染和死了吗?

的主要国际庆祝世界环境日2004将在巴塞罗那举行,西班牙与环球论坛密切协作的文化。联合国环境规划署是巴塞罗那市的荣誉,西班牙的加泰罗尼亚地区政府和政府将主持这一重要的联合国日。

Nowadays environmental protection has become the first thing we have to do, because now the earths environment is under threat.

Now, we know that the earth has been warming, cold place has melted the ice, the water level becomes more and more high, let many coastal countries. More land desertification, disasters are hit, make our life is no longer so carefree.

First of all, we must start from the side.

Forests have been cut down, automobile exhaust emissions... The first will directly affect our lives, because they let we dare not breathe. So, the best way to deal with these problems is to drive less, ride bikes, and riding a bike is good for you! . But although it has been said that and said more than once, but why there are so many cars on the road? So, this method really, a bit not practical.

The simplest is to plant trees, the trees are humans good friends, they can help mankind to many things, such as clean air, and so on. So, a variety of trees, this method is very practical!

In short, our earth wanted us to take good care of yourself, to protect, want to use practical actions to help the earth, make the environment more beautiful!

先如今环保已经成为了我们必做的事，因为现在地球上的环境正受到威胁。

现在，我们知道地球已经开始变暖，寒冷地方的冰已经开始融化，变成的水使水平面越来越高，让许多沿海的国家被淹没。更多的土地沙漠化，天灾不断来袭，使我们的生活不再那么无忧无虑。

首先，我们必须从身边做起。

大片森林被不断砍伐，汽车尾气不断排放……这些首先就会直接影响到我们的生活，因为这些让我们“不敢呼吸”。所以，这些问题最好的解决方法就是少开车，多骑自行车，而且，骑自行车也很有益身体健康!。可虽然一直这样说，而且说了也不只一次，可为什么还是有那么多的车在路上呢?所以，这个方法实在，有点不实用。

最简单的就是种树了，树是人类的好朋友，他们能帮助人类许多事，比如净化空气啦，等等。所以，多种树，这个方法很实用!

总而言之，我们的地球要我们自己去爱护，去保护，要用实际行动来帮助地球，让环境更美好!

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.

经典保护环境英语作文范文

It is very important to deal with the rubbish in cities. Rubbish must be thrown away or reused properly. Or it may cause a lot of problems. It may pollute the air and water. People may get ill when they breathe the polluted air or drink the polluted water.

Our city has started to face the problem. Some rubbish is sorted and sent to a certain place .Waste gas is cleaned before it goes into the air. Waste water is also cleaned before it is poured into rivers.

People should be prevented from throwing rubbish everywhere. We should try our best to take care of our environment and fight against pollution.

这是处理城市垃圾非常重要。垃圾必须扔掉或者重用。或者它可能会导致很多问题。它可能会污染空气和水。人可能生病时呼吸受污染的空气或饮用受污染的水。

我们的城市已经开始面临的问题。一些垃圾分类并送到某个地方。废气进入空气之前清洗。废水也在它倒入河流清洁。

人们应该阻止到处扔垃圾。我们应该尽我们最大的努力去保护我们的环境，与污染作斗争。

Yesterday afternoon, the clear sky. Come straight home after school, I, on the edge of a road, I saw a group of pretty much thing is slowly moving, curious I went over to look, boom! Are a group of flies dispersed in a hubbub, odor, I quickly cover your nose, hurriedly escape, only to hear the sound of a squeaking, a big, fat rat quickly into odour plumes of garbage, suddenly, two or three big black cat rushed out, to the mouse. I turned pale with fear, quickly get out, I was happy mood was thrown to the outside of the nine days into the sky, I hate people who litter, only now is, they put a good road. I went on weakly, those people if one

Saving Water

The world is not only hungry,but also thirsty for water. This may seem strange to you, since nearly 75 % of the earths surface is covered with water. But about 97% of this huge amount is sea water, or salt water. Man can only drink and use the other 3% -- the fresh water that comes from rivers, lakes,underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted.

However, as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall, is still enough for us. But our need for water is increasing rapidly-- almost day by day. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture and industry. Let me give you just one small exampie of how necessary water is to industry. Did you know that to produce a single ton of steel, it takes about 91, 000 liters of water?

We all have to learn how to stop wasting our precious water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale. For us, the systems are as important as the spacecraft.

节约用水

我们的世界不仅饥饿，而且因为缺水而干渴。对你来说这可能似乎奇怪：因为我们的地球表面75%由水覆盖着。但是，这巨大的数量中97%是海水、或咸水。只有剩下3%

的来自河流、湖泊、地下，和其他来源的淡水供人们饮用、使用。即使如此，这3%的水源我们也不能够完全使用，因为有些淡水是以冰山或冰河的形式存在。更糟糕的是，一些水源已遭受了污染。

然而，尽管按现状看来，这些少量的淡水即使时常转化成雨水的形式，对我们来说，也仍然够用。可是我们对水的需求却日益迅速增长。我们只有现在采取措施解决这一问

题才能避免未来世界范围内的严重水资源缺乏。限量供水会对农业和工业产生不良的影响。我们举个小小的事例就能证明水对工业的必要性。每生产一吨钢材就要消耗91，000升水，你知道吗?

我们必须杜绝对宝贵水资源的浪费。我们应该采取的第一步就是要发展水再利用的方法。该领域的实验已在进行，但是仅是小规模地进行。水资源再利用系统的重要性

对我们而言，与空间站不相上下。

1. Human beings are dependent on the Earth’s diversity of species. Wild species play a vital role in the maintenance of the planet’s ecological functions, yet every day on the planet 40-100 species become extinct.

2. Human life cannot exist in the absence of complicated interactions of millions of species in biological systems.

3. 50,000 plant an animal species disappear each year due to tropical deforestation, expanding agriculture and human settlement.

4. Human activities impact the environment, including clearing agriculture land; air, land and water pollution; urban and suburban development; and the introduction of invasion or non-native wildlife species. If land and wildlife are poorly managed, human being will risk fragmenting habitat.

5. We are living in the midst of a great chemical experiment, and some serious consequences are becoming apparent to scientist. More than two billion pounds of chemicals are spewed into the air each year. These chemicals are brewing a disastrous stew, resulting in an atmosphere crisis. The greatest consequences of the atmosphere crisis may be global warming and the ozone depletion. If human kind wants to survive well into the next millennium, we must stop this horrible destruction of our own environment.

6. The earth appears to be warming due to the greenhouse effect. Scientists estimate that the average temperature could climb about 2 degrees Celsius in 20 years. This change in the global climate would have disastrous results, including drought, coastal flooding and increased species extinction. And, scientists have discovered a hole in the ozone layer. The ozone layer is the only protection for life on Earth against deadly ultraviolet radiation from the Sun. Once the ozone layer is completely destroyed, all life on Earth will cease to exist, killed by the deadly radiation. The planet will become a barren rock devoid of all life.

7. It allows for an unbelievably large amount of downloads and uploads of information, music,videos and all sorts of other things, as it is the engine of the information superhighway of our Information Era, in witch we live.