Water is very important to living things. Without water there can be no life on the earth.

Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cook our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.
There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the desert part of the world, there is some water in the air. You can not see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid, the water in the air is a gas, and we call it water vapour (蒸气).
Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体). Snow crystals are very very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.
Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you can not see or feel it.
【小题1】Where can we find water?A．Water can be found almost everywhereB．We can find water when it turns into vapour.C．Water is only in seas and rivers.D．We can see water in deserts here and there.【小题2】We can drink water when it is .A．a solidB．in the airC．aliquidD．turned into ice【小题3】Clouds are made of .A．seas, rivers and lakesB．solid, liquid and gasC．very small drops of water or snow crystalsD．blocks of ice【小题4】Water has three states(状态). They are .A．solid, liquid and gasB．solid, vapour, snowC．drops of water, blocks of ice and crystals of water D．ice,snow and airC

(答案→)C 解析：本文介绍了水是人们生活中不可缺少的物质，没有水我们就无法生存，水存在于河流海洋和湖泊里。文中介绍了云是由水滴和雪的结晶体组成的。水有固体、液体及气体三种形式。【小题1】细节理解题。根据There is water in seas, rivers and lakes.故选C。【小题2】细节理解题。根据When it is a liquid, you can drink it.故选C。【小题3】细节理解题。根据They may be made of very small drops of water. They may also be made of snow crystals(结晶体). 故选C。【小题4】细节理解题。根据常识可知，故选A。

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