五、阅读理解。（每小题3分,共15分）
Mangroves(红树林) are important for our Earth. They can take in plenty of carbon dioxide(二氧化碳) and make the air fresh. But around the world, the cities are growing and they bring us pollution, so many mangrove forests are lost.
In Shenzhen, the city is working hard to help mangroves. The city is small and busy, but it keeps 1% of the main city part for mangroves. The city even moves the Coastal Highway to help the mangroves. To bring back the mangroves, the city also plants more mangroves in some right places. Now, the Futian Mangrove Nature Reserve becomes home to migratory birds.
Many people in Shenzhen like helping mangroves. They enjoy activities like planting trees and making more people know about mangroves. But there aren't many chances for them to join in. So, the city needs to do more and gives people chances to help.
Helping mangroves is good for our city and the world. We should do our best to help these important forests. And we have a long way to go.
()1. Why are mangroves important for our Earth?
A. They make the air fresh.
B. They are around the world.
C. They make the city grow.
D. They are lost with the cities.
()2. What does “They” in Paragraph 3 refer to(指代)?
A. Birds.
B. People.
C. Mangroves.
D. Cities.
()3. Which could be the structure(结构) of the text?
A. ①②/③/④
B. ①/②③④
C. ①②③/④
D. ①/②③/④
()4. What can we learn from the text?
A. The mangroves are important to migratory birds.
B. People have many chances to help mangroves.
C. The mangroves around the world are fine now.
D. People don't know how to help mangroves.
5. What do you think we should do to protect these forests?（请自拟一句话作答）

1. A
2. B
3. D
4. A
5. We should let more people know the importance of mangroves and plant more trees.（言之有理即可）

【分析】
本题为英语阅读理解题，包含4道选择题和1道主观题。解题思路如下：1. 细节理解题：定位题干关键词回原文找对应信息，匹配选项；2. 词义猜测题：根据代词所在句的前文名词，确定指代对象；3. 文章结构题：分析各段落大意，梳理段落间逻辑关系；4. 推理判断题：依据原文信息判断选项正误；5. 主观题：结合文章主旨，给出合理建议。
【解析】
1. 题干问红树林对地球重要的原因，原文第一段第二句明确提到“They can take in plenty of carbon dioxide and make the air fresh”，对应选项A，故选A。
2. 第三段第一句“Many people in Shenzhen like helping mangroves”，后句的“They”指代前文的“people”，故选B。
3. 段落结构：①段总述红树林重要但面临消失；②段讲深圳保护红树林的措施；③段讲市民参与情况；④段总结要保护红树林，结构为①/②③/④，故选D。
4. 原文第二段最后一句提到“Futian Mangrove Nature Reserve becomes home to migratory birds”，说明红树林对候鸟重要，对应选项A；B选项与第三段“aren't many chances”矛盾，C选项与第一段“many mangrove forests are lost”矛盾，D选项与第三段“making more people know about mangroves”矛盾，故选A。
5. 主观题结合文章保护红树林的主旨，给出合理建议即可，如We should let more people know the importance of mangroves and plant more trees.
【答案】
1. A 2. B 3. D 4. A 5. We should let more people know the importance of mangroves and plant more trees.（言之有理即可）
【知识点】
英语阅读理解、细节理解、词义猜测
【点评】
本题考查学生对英语文章的细节、指代、结构及主旨的理解，题型常规，难度适中，贴近环保主题，适合学生练习。
【难度系数】
0.6

六、补全对话。（每小题2分，共10分）
A: Good evening, Ted! Tell our listeners what you do, please.
B: Good evening! I help collect rubbish along the Zhou River with other members of our volunteer team.
A: That's good! 1. ?
B: As you know, the Zhou River is our mother river. 2. . We don't want it to be polluted.
A: I agree with you. 3. ?
B: Um ...10 girls and 15 boys.
A: 4. ?
B: After dinner every evening. We take a long walk along the side of the river and when we see the rubbish, we pick it up.
A: You're great.
B: 5. .

1. How did you come up with the idea
2. It provides us with clean water
3. How many members/people are there in the team
4. When do you do this work
5. Thanks/Thank you

【分析】补全对话需结合上下文的问答逻辑、语境及日常交际用语作答。第1空，A询问B参与志愿活动的想法来源，对应B后续解释周河的重要性；第2空，B说明周河的作用，衔接“不想被污染”的表述；第3空，B回答团队人数，故A询问团队成员数量；第4空，B回答活动时间，故A询问做这项工作的时间；第5空，A夸赞后，B需回应感谢。
【解析】1. 根据B的回答（解释参与志愿的原因），A询问B产生该志愿想法的方式，故填How did you come up with the idea；2. 前句提到周河是母亲河，后句说明不想被污染，中间补充周河的益处，故填It provides us with clean water；3. B回答的是团队的男女生总人数，故A询问团队成员数量，填How many members/people are there in the team；4. B回答的是活动时间（每天晚饭后），故A询问做这项工作的时间，填When do you do this work；5. A夸赞B团队后，B需表达感谢，填Thanks/Thank you。
【答案】1. How did you come up with the idea；2. It provides us with clean water；3. How many members/people are there in the team；4. When do you do this work；5. Thanks/Thank you
【知识点】补全对话、情景交际
【点评】本题为英语补全对话题，考查日常情景交际用语的运用，需结合上下文语境和问答逻辑填写，难度适中，属于初中英语基础题型。
【难度系数】0.7