People need water to survive.Almost everything on the earth needs water.We can imagine what will be like if we don’t drink any water on a summer day.In fact,water makes a considerable part of your weight and it helps you survive.
Sometimes water can be bad for people.For example,we will feel inconvenient to do outdoor work if it rains for days.Farmers will suffer a lot if it rains too much at the harvest.A flood does harm to all forms of lives.Polluted water causes many kinds of diseases and sometimes these diseases even take man’s life.So everybody must keep water clean and not pollute the water source.
Answer the questions:
(1) What do people need water to do?
(2) What makes up a considerable part of your weight?
(3) Water is always good for people,isn’t it?
(4) Why sometimes can water be bad for people?
(5) What must people do to fight water pollution?