water is precious英语作文
1water is precious
Water is the most important thing for life, even greater than food. Water is not a never-ending resource, but a precious resource that is more valuable than anything else on the planet.
China is facing a water crisis more severe and urgent than any other country in the world. Urgent measures must be taken to save water. For example, Vegetables and fruit should be washed in a bowl rather than under a running tap . Never put water down the drain when there may be another use for it such as watering a plant or cleaning.
In a word, water is precious to us all over the world.
2Water is precious
We drink water every day but do you know how important water is?
Without water all living things will die. There are also other uses of water besides drinking. We use water for bathing washing clothes and also watering the plants.
Plants need water in order to grow. This is because plants need water to make food.
We can travel on water as a means of transportation. Boats and ships travel on water.
Water has another important use. When there is a fire we use water to put it out. In this way water saves people's life and also our property from being burnt.
3Stop wasting our precious water
The world is not only hungrybut 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 lakesunderground 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.
4Precious water resources
Water is very important for us. We must drink water everyday. We can't live without water. Water is everywhere around us. At home we use water to wash clothes to wash dishes to cook rice to clean the flat to have showers to make drinks to clean our teeth to have a bath and so on. At work people use water to put out fires to grow vegetables to make things in factories and so on. We also can swim in the sea. Water is important for us isn't it?
There isn't much water on the earth. we must to save it. It is not inexhaustible.It is very valuable.