Unit4 Reduce, Reuse, Recycle Section B（3a‑Self ）课时同步练习 2026-2027学年人教版英语九年级下册

**基本信息** 本同步练习以“夯实基础-能力进阶-拓展提高”分层设计，通过词汇→语法→语篇的递进路径，系统巩固Unit4环保主题语言知识，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |夯实基础|核心词汇（汉译英、词形变换）、基础短语|聚焦单元重点词汇，如harm/solution的词形转换，强化语言能力基础| |能力进阶|语法综合（宾语/状语从句）、情景交际|通过语法填空、句型转换及补全对话，训练语法应用与交际能力，提升思维灵活性| |拓展提高|语篇阅读（精读+拓展）、写作|结合环保主题阅读（如海滩污染）与网络帖子写作，渗透文化意识，培养综合语言运用与问题解决能力|

Unit4 Reduce, Reuse, Recycle Section B(3a‑Self )同步练习 建议用时:25分钟 一、单词汉译英 1. 伤害;损害 2. 产品 3. 材料 2. 解决办法 5. 轮胎 6. 合作;配合 3. 海报;传单 二、短语汉译英 1. 对…… 造成伤害 2. 想出解决办法 2. 废旧轮胎 4. 共同合作 5. 制作环保传单 三、词形变换 1. harm (v.) (adj. 有害的);(adj. 无害的) 2. produce (v.) (n. 产品) 3. material (n.) (复数) 4. solve (v.) (n. 解决办法) 5. cooperate (v.) (n. 合作) 一、语法综合填空(宾语从句 / 各类状语从句综合) 1. Too much waste will (harm) our living environment. 2. We should think of different (solve) for environmental problems. 3. While old tyres are useless for cars, they (can) be reused for playgrounds. 4. I believe we can make the earth better if we work together.(that / unless) 5. Unless everyone (play) a part, we cannot stop pollution. 二、句型转换(宾语从句、状语从句互换) 1. We should take action. I believe that.(合并宾语从句) I believe we take action to protect the environment. 2. You cannot solve the problem. You don’t work together.(用 unless 改写) You solve the problem you work together. 3. People work together. We can beat pollution.(用 if 改写条件状语从句) people together, we can beat pollution. 三、选词填空 【harm, product, material, solution, cooperate】 1. Careless waste throwing will our living environment. 2. We should choose eco‑friendly when we go shopping. 3. Old tyres are good for children’s playgrounds. 4. We need to come up with practical for beach pollution. 5. Communities and government need to with each other. 四、情景补全对话(5 个空,6 个选项,1 项多余) A. What environmental problem do you care about most B. What are its main causes C. What bad effects does it bring D. What solutions can we think of E. Can one person change big pollution problems F. Where can we make our environmental leaflet A: 1. B: I care about beach pollution in our city. A: 2. B: Tourists leave rubbish on the beach and sea washes waste onto the shore. A: 3. B: Sea animals get hurt and the beach is no longer a nice place for visitors. A: 4. B: We can pick up rubbish, set more bins and call on people to bring reusable bags. A: 5. B: One person cannot solve it, but many small actions together will work. Passage1 单元精读(改编 3a 网页帖子文本) Our city beach is in bad condition. Lots of waste covers the sand. Broken glass hurts walkers. Sea animals get trapped in plastic rubbish or eat it by mistake. Part of rubbish is washed by the sea; most is left by visitors. We student teams pick up rubbish every Saturday, but it is far from enough. We hope the government can do more. If people from all sides cooperate and take small actions, we will make the beach clean again. 任务一:单选 1. What is the main theme of this passage? A. The problem of city beach pollution and possible actions B. How to travel to different beautiful beaches C. The history of sea animals D. How to produce plastic bags 2. What does the underlined phrase “get trapped” mean? A. 被困住 B. 被喂养 C. 被释放 D. 被保护 任务二:简答 1. Where does most of the beach rubbish come from? Passage2 素养拓展阅读 Environmental protection is not only big projects for the government. It also lies in small daily choices of every student. The three‑Rs ideas can go into our everyday life. Reduce, reuse and recycle are not hard rules. They are simple ways for us to live a greener life. We can make leaflets or posters to spread environmental knowledge. Every small choice counts for our only one Earth. 任务一:单选 1. What can we learn from the text? A. Only government should do environmental‑protection work B. Students’ small daily choices also matter for environment C. Three‑Rs rules are too difficult for ordinary people D. We can do nothing to spread green ideas 2. What does “counts” mean here? A. 有价值;起作用 B. 数数 C. 计算价格 D. 记账 任务二:判断正误 (T/F) 1. Environmental protection includes small daily choices. (  ) 2. We can make leaflets to spread green ideas. (  ) 任务三:简答 1. What can students do for environmental protection? 任务四:单元写作(网络帖子,80 词左右) Write an online post about one environmental problem in your city. 【参考答案】 夯实基础 一、单词汉译英 1.harm 2.product 3.material 4.solution 5.tyre 6.cooperate 7.leaflet / poster 二、短语汉译英 [1.do](1.do) harm to … 2.come up with solutions 3.old tyres 4.cooperate with each other 5.make environmental leaflets 三、词形变换 1.harmful; harmless 解析:harm 伤害;harmful 有害的;harmless 无害的。 2.product 解析:produce 动词生产;product 名词产品。 3.materials 解析:material 名词材料,复数 materials。 4.solution 解析:solve 动词解决;solution 名词解决办法。 5.cooperation 解析:cooperate 动词合作;cooperation 名词合作。 能力进阶 一、语法综合填空 1.harm 解析:will 后接动词原形。 2.solutions 解析:different 后接复数名词。 3.can 解析:情态动词 can 表能够。 4.that 解析:that 引导宾语从句。 5.plays 解析:unless 从句,一般现在时,主语 everyone 三单 plays。 二、句型转换 1.that; should 解析:that 引导宾语从句。 2.cannot; unless 解析:unless 除非。 3.If; work 解析:if 引导条件状语从句,主将从现。 三、选词填空 1.harm 2.products 3.material 4.solutions 5.cooperate 四、情景补全对话 答案:1.A 2.B 3.C 4.D 5.E;多余项:F 解析: 1. 答句回答最关心的环境问题,选 A; 2. 答句讲成因,选 B; 3. 答句讲坏的影响,选 C; 4. 答句讲解决办法,选 D; 5. 答句讲个人力量有限,选 E。 拓展提高 Passage1 任务一:1.A 2.A 任务二简答:Most of the rubbish is left by visitors /tourists. Passage2 任务一:1.B 2.A 任务二:1.T 2.T 任务三简答:We can do small green actions and spread environmental knowledge by leaflets or posters. 任务四写作参考范文 Dear friends, Our city beach is facing serious pollution. Lots of rubbish is left by visitors. It hurts sea animals and spoils the beach. We student teams pick up rubbish every weekend. We hope more people can join us and bring reusable bags. Small actions will make our beach clean again. 学科网(北京)股份有限公司 $