Water is the basis of life. Animals and plants need water. So do we.
Without food, we can live for a week, but we can't live for three days without water.
Water also plays an important part in our daily life, because we have to clean our teeth, wash our faces and take a shower every day.
In addition, water is needed in cooking as well.
Even though our earth is rich in water resource, there are still many places lack of water, because of the water pollution.
It's a great pity that few people have realized the importance of water protection.
If we continue to pollute the water, we will have no water to drink and die of thirst.
So we must cherish the water resource.