At present, many people take it for granted that fresh water will never be used up because we can find it not only from the rain, but also in the rivers, lakes and wells. Consequently, it is not necessary for us to worry about global shortage of fresh water.

In fact, the situation has become so serious that everyone should be aware of it and take immediate actions. With the world population increasing rapidly year after year, water resources are being consumed at an appalling speed. What's more, with the development of science and technology, modern industry needs much more water than before. Thirdly, pollution is also a worrying problem—water in rivers and wells becomes undrinkable because of industrial wastes.

We should take urgent measures to protect fresh water resources. The government should increase the efficiency of water usage by such methods as water recycling and purification of sea water. The people, on the other hand, should form the habit of cherishing every drop of water.  Last but not least, pollution must be effectively controlled, if we ever want to improve the quality of life.