Saving Water 为题的英语作文，300单词以上。

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Answer 1

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 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.追问

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Answer 2

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nowadays,water problem become the biggest problem in the world,so ,we must do our best to saving water.
water is a useful source.nobody can live without water.water can make people live,the used water can use to watering plants,washing the rooms and so on.in rencet years ,the water resauce shortage,it is because of the humans destroy.they throw away the used thing anywhere they want,make the river so dirty.now,we must take measures to save water,we should recycling the water,do not throw the used things into the river or lake,besides ,we should call up more people take part in this activity to save water,what's important ,we should set an example to the little children.