环保演讲稿

2020-03-03 06:45:03 来源：范文大全收藏下载本文

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 it\'s 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 can\'t imagine what the life will be like without it.Everyone should do his best to save electricity.Don\'t 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.The world is not only hungry,but also thirsty for water.This may seem strange to you, since nearly 75 % of the earth\'s 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 neceary 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.

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。

Protection of the Environment

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 become 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.

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 le 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.

Finally, if we educate people to think about the problems we shall have a better and cleaner planet in the future.

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。

我们都知道如果从海里捕捉太多的鱼，海里就不会再有鱼了。但是，现代化的捕鱼技术

使得捕鱼量越来越大。我们都知道如果砍伐太多的树木，森林就会消失。但是，我们仍旧使用强大的机械砍伐越来越多的树木。我们都知道如果河水被废弃物污染的话，我们只有死路一条。但是废弃物仍然源源不断地进入河里

我们知道，人口继续照现在这个速度增长的话，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。

最后，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。