一、阅读下面材料，从方框中选出正确的选项补全短文（其中一项是多余选项），并回答问题。
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What is Earth Hour?
On the last Saturday night of March every year, people around the world turn their lights off for one hour. 1. They are trying to show that small changes can make a great difference to our planet.
How did it start?
The World Wide Fund for Nature started Earth Hour in 2007, in Australia. More than 2,200,000 homes and businesses joined in. 2. The electricity they saved could power thousands of computers or televisions for one hour. 3. They started to take part in the event in 2009. Every year, many landmark buildings in Chinese cities turn off their lights for Earth Hour. 4.
You can take part in Earth Hour next March. Find out the time of the event on the Earth Hour website(网站). When the time comes, turn off your lights and enjoy your special hour in the dark. It will be even more fun if you ask your friends, family and classmates to join in as well.
A. What can you do?
B. What will happen?
C. This saved a lot of electricity.
D. People in China liked this idea too.
E. They do this because they care about climate change(气候变化).
5. What will you do if you join in Earth Hour?（不超过15词）

1. E 2. C 3. D 4. A 5. 开放性问题,答案合理即可。参考答案:Turn off lights and enjoy stargazing with friends.

【分析】
本题为英语补全短文及开放性问题，补全短文需结合空格前后的语境逻辑（如因果、顺承等）匹配选项：第1空需填行为的原因，第2空需填参与后的结果，第3空需填中国参与的相关内容，第4空需填引出做法的问句；第5题需紧扣地球一小时主题，结合自身实际回答，注意词数限制。
【解析】
1. 第1空：前文介绍地球一小时的关灯行为，后文说明该行为的目的，E选项解释了行为的原因，符合逻辑，故选E。
2. 第2空：前文提到大量主体参与活动，后文说明节省电力的作用，C选项承接参与情况，引出电力节省的意义，故选C。
3. 第3空：后文提到中国2009年开始参与，D选项衔接上文的发起情况，引出中国的参与，故选D。
4. 第4空：后文介绍参与活动的具体做法，A选项引出做法的相关内容，符合逻辑，故选A。
5. 第5题：开放性问题，围绕地球一小时活动，结合自身实际回答，示例答案符合要求（不超15词）。
【答案】
1. E 2. C 3. D 4. A 5. Turn off lights and enjoy stargazing with friends.
【知识点】
英语阅读理解（补全短文）、开放性问题回答
【点评】
本题围绕地球一小时活动展开，考查学生对上下文逻辑关系的理解及信息匹配能力，最后开放性问题贴近生活，考查学生的实际应用能力。
【难度系数】
0.6