摘要:B Everybody needs water. All plants need water. We use water to wash cups, cars clothes and ourselves. Where does all water come from? It comes from the clouds. The clouds can change into rain. Some of the rain goes down the ground. Some of the rain water goes down the mountains into streams.The streams come together to make rivers and lakes. Water can change itself. When water gets very cold, it becomes ice. When water gets very hot, it becomes steam. ( )6. need water. A. Only animals B. Only plants C. Only people D. All living things ( )7. We usually clean our clothes with . A. steam B. clouds C. water D. rain ( )8. the water in the streams comes from the . A. river B. lake C. wind D. clouds ( )9. when the weather gets very , water changes into ice. A. warm B. hot C. cool D. cold ( )10. where does steam come from? A. it comes from the clouds. B. it comes from plants. C. it comes from very hot water. D. it comes from very cold water.

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A. steam
B. clouds
C. water
D. rain
3. The water in the streams comes from the _____.
[     ]
A. river
B. lake
C. wind
D. clouds
4. When the weather gets very           , water changes into ice.
[     ]
A. warm
B. hot
C. cool
D. cold
5. Where does steam come from?
[     ]
A. it comes from the clouds.
B. it comes from plants.
C. it comes from very hot water.
D. it comes from very cold water.
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