五 电是我们生活中不可缺少的能源。它从哪里来？又能帮我们做什么？作为“地球守护者”的一员，你也给大家写一篇文章做一下科普吧！（15分）
提示：
电的来源：water power，wind power，solar power
电的用途：light our homes, run computers and TVs
要求：①表达流畅，语法正确；
②书写工整；
③不少于5句话。
Electricity is very important in our life.
It comes from many places. We can get electricity from

【参考范文】
Electricity is very important in our life. It comes from many places. We can get electricity from water power, wind power and solar power. Electricity helps us a lot every day. It brings light to our homes. It can run our computers and TVs. We can also use it to play games and study. We should also save electricity. Let's turn off the lights when we don't need them.

【分析】本题要求写一篇关于电的科普短文，需包含电的来源（水力、风力、太阳能）和用途（照明、运行电脑电视），不少于5句话，表达流畅语法正确。解题思路：1. 开篇点明电在生活中的重要性；2. 说明电的来源，用到提示的三个能源；3. 列举电的用途，结合提示内容可适当补充合理用途；4. 加入节约用电的呼吁，使内容完整，符合科普意义。
【解析】按照写作逻辑，先引出电的重要性，接着说明来源，再阐述用途，最后呼吁节约用电，确保句子数量达标，语法正确，词汇使用符合提示要求，内容贴合主题。
【答案】Electricity is very important in our life. It comes from many places. We can get electricity from water power, wind power and solar power. Electricity helps us a lot every day. It brings light to our homes. It can run our computers and TVs. We can also use it to play games and study. We should also save electricity. Let's turn off the lights when we don't need them.
【知识点】英语写作、科普短文、电的相关表达
【点评】本题结合生活常识考查英语写作能力，要求运用提示词汇构建内容，结构清晰，既考查语言运用能力，又渗透节约能源的意识，符合英语学科综合素养要求。
【难度系数】0.3