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13.Water vapor also exists in steam produced from hot springs or geysers.
水蒸气也存在于从温泉或间歇泉中产生的蒸汽中。
hot springs 温泉
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再来读一遍完整的文章：
Water is vital, or needed, for life on earth. All animals and plants need water to survive. Plants and animals that live on "dry" land can get water from soil, streams, rivers, lakes. puddles, dew, or rain. Water is also vital for human life. People collect and store water for drinking and washing, for our pets and farm animals, and for supplying water to crops. Each person needs to take in about two quarts of water daily to stay alive and healthy. Like many other substances, water can exist in more than one form. It can exist as a solid, liquid or gas. All of these forms occur naturally. The liquid form is the one we think of most often. This is simply water as in the water that we drink or that comes out of a hose. The solid form, which is ice, exists in very cold places and the gaseous form, which is water vapor, exists in the air around us. Water vapor also exists in steam produced from hot springs or geysers.
根据短文，回答问题。
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1.What is the main idea of this story?
A.Water is needed for life on earth.
B.Each person needs to drink about two quarts of water eah day.
C.Water on "dry" land comes from soil, streams, rivers, lakes. puddles, dew, or rain.
2.Name three different forms of water.
3. Water vapor is what form ol water?
A.Solid.
B.Liquid
C.Gas
4.What form of water is ice?
5.Where are some examples of places that you might find water vapor?
6.The word "vital" means
A.friendly
B.needed
C.not very good
参考答案：
1.A 2. Solid, liquid or gas.
3.C 4.Solid.
5.Hot springs or geysers. 6.B
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