Ⅱ. Make quick responses to the sentences（快速应答）
1. What kind of pollution worries you most in your city?
2. How will our streets become greener in the next few years?
3. What can students do to reduce plastic waste at school?
4. Have you ever joined any green activities with your classmates?
5. Why are some old factories being moved out of the city centre?

1. I worry about air pollution most. The dirty air often makes my throat sore.
2. More trees will be planted along the roads, and more electric buses will be used.
3. We can bring our own water bottles, refuse plastic straws and reuse old paper.
4. Yes, I have. Last spring, our class planted some young trees in a park.
5. Because they produce too much smoke and waste, which seriously pollute the air and water.

【分析】本题为英语快速应答类题目，需根据每个问题的句式类型（特殊疑问句、一般疑问句），结合环保主题，使用符合语法规则和日常表达习惯的语句作答，确保回答精准对应问题，内容贴合语境且合理。
【解析】1. 针对询问最担忧的污染类型的特殊疑问句，用“I worry about...most”结构作答并补充原因；2. 针对询问街道变绿方式的特殊疑问句，用一般将来时说明具体措施；3. 针对询问学生减少塑料浪费做法的特殊疑问句，用“can+动词短语”列举可行行为；4. 针对一般疑问句，用“Yes/No, I have/have not”结构作答并补充具体事例；5. 针对询问旧工厂迁出原因的特殊疑问句，用“Because”引导原因状语从句说明理由。
【答案】1. I worry about air pollution most. The dirty air often makes my throat sore.
2. More trees will be planted along the roads, and more electric buses will be used.
3. We can bring our own water bottles, refuse plastic straws and reuse old paper.
4. Yes, I have. Last spring, our class planted some young trees in a park.
5. Because they produce too much smoke and waste, which seriously pollute the air and water.
【知识点】日常英语交际用语；环保话题英语表达；特殊疑问句应答
【点评】本题围绕环保主题考查日常英语快速应答，贴近生活实际，侧重语言的实际运用，有助于学生巩固日常交际能力，难度适中。
【难度系数】0.8

Ⅲ. Free talk（说一说）
Directions: Choose one kind of pollution that you think most urgently needs to be solved, and give your own solutions. Say at least eight sentences. You have one minute to prepare and one minute to talk.

I think air pollution is the most urgent problem in many big Chinese cities. The dirty air harms people's health. To solve this problem, action must be taken by everyone together. First, more electric buses will be used to replace the old diesel ones in the next few years. Second, old factories that produce a lot of smoke must be moved out of the city centre. Third, more trees should be planted along the streets and around schools. If we work hard hand in hand, our sky will surely become bluer in the near future.

【分析】首先，需按照题目要求选定一种最需解决的污染类型，结合实际情况选择空气污染；接着说明选择该污染的原因（如危害人体健康）；随后分点提出具体可行的解决方案，确保内容连贯且句子数量达标；最后组织语言形成完整的口语表述，满足至少八句话的要求。
【解析】I think air pollution is the most urgent problem in many big Chinese cities. The dirty air harms people's health. To solve this problem, action must be taken by everyone together. First, more electric buses will be used to replace the old diesel ones in the next few years. Second, old factories that produce a lot of smoke must be moved out of the city centre. Third, more trees should be planted along the streets and around schools. If we work hard hand in hand, our sky will surely become bluer in the near future.
【答案】I think air pollution is the most urgent problem in many big Chinese cities. The dirty air harms people's health. To solve this problem, action must be taken by everyone together. First, more electric buses will be used to replace the old diesel ones in the next few years. Second, old factories that produce a lot of smoke must be moved out of the city centre. Third, more trees should be planted along the streets and around schools. If we work hard hand in hand, our sky will surely become bluer in the near future.
【知识点】英语口语表达、环保话题应用
【点评】本题考查学生围绕环保主题的口语组织与表达能力，要求学生清晰阐述观点并给出可行方案，贴合实际生活，难度适中。
【难度系数】0.5

Exercise C Vocabulary and Grammar

Exercise C Vocabulary and Grammar

【分析】本题为英语学科的词汇与语法练习（Exercise C），仅给出练习名称，未提供具体题目内容，无法开展常规解题步骤分析。
【解析】因未给出该练习下的具体题目，无对应解题解析内容。
【答案】Exercise C Vocabulary and Grammar
【知识点】英语词汇与语法
【点评】需补充具体的题目内容，才能完成该练习的解答。
【难度系数】0.9

Ⅰ. Translate the following phrases into English（把下列词组译成英文）
1. 保护我们的地球免受污染
2. 不同类型的污染
3. 采取行动
4. 噪声最大的来源
5. 由……引起
6. 八百万吨塑料垃圾
7. 自然分解
8. 在海底
9. 具有良好的工程思维能力
10. 学习工程技能
11. 对环境的热爱
12. 宣传这个问题
13. 清理海滩
14. 作出改变
15. 对……有害
16. 一种环境友好型燃料

1. protect our Earth from pollution
2. different types of pollution
3. take action
4. the biggest cause of noise
5. be caused by
6. eight million tons of plastic waste
7. break down naturally
8. at the bottom of the ocean
9. have a good engineering sense
10. pick up engineering skills
11. passion for the environment
12. spread the word about the problem
13. clean up a beach
14. make a difference
15. be harmful to
16. an environmentally friendly fuel

【分析】
本题为英汉短语互译题，需掌握英语中常用的固定短语搭配、名词短语及动词短语表达，尤其注意环保类相关短语的特殊译法，准确对应每个中文短语的英文固定表述即可。
【解析】
1. protect our Earth from pollution
2. different types of pollution
3. take action
4. the biggest cause of noise
5. be caused by
6. eight million tons of plastic waste
7. break down naturally
8. at the bottom of the ocean
9. have a good engineering sense
10. pick up engineering skills
11. passion for the environment
12. spread the word about the problem
13. clean up a beach
14. make a difference
15. be harmful to
16. an environmentally friendly fuel
【答案】
1. protect our Earth from pollution
2. different types of pollution
3. take action
4. the biggest cause of noise
5. be caused by
6. eight million tons of plastic waste
7. break down naturally
8. at the bottom of the ocean
9. have a good engineering sense
10. pick up engineering skills
11. passion for the environment
12. spread the word about the problem
13. clean up a beach
14. make a difference
15. be harmful to
16. an environmentally friendly fuel
【知识点】
英语固定短语搭配、英汉短语互译、环保类英语表达
【点评】
本题为基础英汉短语互译题，考查日常及环保类常用英语短语的掌握，需积累固定搭配，注意部分短语的特殊译法（如“工程思维能力”译为engineering sense、“宣传”译为spread the word），适合基础阶段学生巩固短语知识。
【难度系数】
0.3