五、【水能】同学们正在阅读一篇关于水的科普小短文。阅读短文，选择正确的答案。
Water is very important to us. We use water to drink,cook and clean. But water can do more for us! We can use running water to make electricity. This is called water power. Many rivers have dams(水坝). The dams hold water and make it fall fast. The fast water turns big wheels. The wheels make electricity. We can use this electricity to light bulbs and run cars. Water power is clean. It does not make dirty air. But we need to save water. Too little water means we can not make water power. Let's take good care of water!
()1. What can water make?
A. Paper. B. Electricity. C. Fruit.
()2. What do dams do?
A. They hold water. B. They drink water. C. They wash water.
()3. Why is water power clean?
A. It makes dirty air.
B. It doesn't make dirty air.
C. It uses a lot of water.
()4. We need to because too little water means no water power.
A. waste water B. make electricity C. save water

1. B 2. A 3. B 4. C

【分析】
本题为英语阅读理解的细节查找题，解题思路是先通读短文把握核心内容，再针对每个小题的问题回到短文中定位对应语句，将选项与原文信息匹配，选出正确答案。
【解析】
1. 定位原文关键句“We can use running water to make electricity.”，可知水可以用来发电，对应选项B；
2. 定位原文关键句“Many rivers have dams. The dams hold water and make it fall fast.”，可知水坝的作用是储水，对应选项A；
3. 定位原文关键句“Water power is clean. It does not make dirty air.”，可知水能清洁的原因是不会产生脏空气，对应选项B；
4. 定位原文关键句“But we need to save water. Too little water means we can not make water power.”，可知因为水少就无法产生水能，所以需要节约用水，对应选项C。
【答案】
1.B 2.A 3.B 4.C
【知识点】
英语阅读理解、细节理解题
【点评】
本题是英语阅读理解的基础细节类题目，考查学生快速定位原文信息的能力，只要仔细阅读短文，对应题干找到原文原句即可选出正确答案，难度较低。
【难度系数】
0.8