Unit 4 Reduce, Reuse, Recycle Section B（1a‑2b）分层作业 2026-2027学年人教版英语九年级下册

**基本信息** 初中英语新授课同步练，以“夯实基础-能力进阶-拓展提高”分层设计，构建词汇积累→语法应用→语篇综合的知识巩固路径，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|单词/短语汉译英、词形变换|聚焦单元核心词汇，通过基础题型强化词汇积累，奠定语言能力基础| |能力进阶|单句填空、句型转换、补全对话|以语法应用为核心，结合情境对话提升语言表达准确性，发展思维逻辑性| |拓展提高|语篇阅读（单选/简答）、微写作|通过单元主题语篇分析与写作输出，整合语言知识与环保意识，培养综合语用能力|

Unit4 Reduce, Reuse, Recycle Section B（1a‑2b）分层作业 建议用时：25分钟 一、单词汉译英 1.守护者 ________ 2. 渔民 ________ 3. 闻起来臭的 ________ 4.禁止 ________ 5. 废水 ________ 6. 稳定的 ________ 7.一代；一辈 ________ 二、短语汉译英 1.长江守护者 ________ 2. 过去常常 ________ 3. 废水 ________ 4.禁止捕鱼 ________ 5. 后代 ________ 三、词形变换 1. guard (v./n.) → ________(n. 守护者) 2. fish (v.) →________ (n. 渔民)；________(n. 鱼，复数) 3. smell (v.) →________ (过去式)；________(adj. 臭的) 4. ban (v.) → ________(过去分词) 5. generate (v.) → ________(n. 一代，世代) 一、单句填空 1. Chen Ming is one of the river ________ (guard). 2. He used to be a ________ (fish) living by the Yangtze River. 3. The river was ________ (smell) because of waste from factories. 4. Fishing was ________ (ban) in Yangtze River for ten years from 2020. 5. We should protect rivers for future ________ (generate). 二、句型转换 1. Factories poured waste into the river. It made the river dirty.（合并 as a result） Factories poured waste into the river. ________ ________ ________, the river became dirty. 2. He was a fisherman in the past.（改为同义句 used to） He ________ ________ ________ a fisherman. 3. The government built new waste centres.（改为被动语态） New waste centres ________ ________ by the government. 三、选词填空 【guardian, fisherman, smelly, ban, generation】 1. Chen Ming works as a river ________ to protect the Yangtze River. 2. Years ago, many ________ made their living by catching fish in the river. 3. The river became ________ because of much waste. 4. The government will ________ bad actions that pollute rivers. 5. We must protect our earth for the next ________. 四、补全对话（5 个空，6 个选项，1 项多余） A. What was the Yangtze River like years ago B. What is Chen Ming’s job now C. What caused the river to become polluted D. What actions did the government take E. How is the river now F. Do many people want to be river guardians A: Hi! Do you know Chen Ming, the river guardian? 1.________ B: He works as a guardian to protect the Yangtze River. A: 2.________ B: Waste from homes and factories polluted it, and people caught too many fish. A: 3.________ B: It was smelly and yellow, with fewer fish in it. A: 4.________ B: They built waste‑cleaning centres, made laws and banned fishing. A: 5.________ B: It becomes clean again, with lots of fish and birds back. Passage1 单元精读 The Yangtze River and Its Guardians Chen Ming is a “Guardian of the Yangtze River”. He used to be a fisherman. Years ago, waste from factories and houses ran into the river. People caught too many fish. As a result, the river turned smelly and yellow, and fish and plants became less. The government took actions: it built wastewater‑cleaning centres, passed new laws and banned fishing for ten years. Some old fishermen got new jobs as river guardians. Now the Yangtze River is clean again. Chen Ming and his wife work together to protect the mother river for future generations. 任务一：单选 1. What is the main idea of this text? A. Introduce the Yangtze River guardians and river protection B. Talk about how to catch fish in Yangtze River C. Describe different kinds of factory buildings D. Tell us history of Chinese big cities 2. What does the underlined word “banned” mean? A. 禁止 B. 鼓励 C. 允许 D. 支持 任务二：简答 1. What made the Yangtze River polluted in the past? _______________________________________________________________________________ Passage2 素养拓展阅读 River protection cannot finish in one day. It needs efforts from the government, communities and each common person. Laws and centres are important, but people’s awareness matters more. If everyone realizes the importance of clean water and behaves well, rivers will stay healthy. We do not only protect rivers for ourselves, but also for the young people who will live on this earth later. 任务一：单选 1. What is more important for river protection according to the text? A. Only building more factories B. People’s awareness of protection C. Catching more fish from rivers D. Throwing waste into rivers 2. What can we infer? A. River protection needs long‑term joint efforts B. Government alone can finish all river‑protection work C. We only need to protect rivers for ourselves D. Once cleaned, rivers will never get polluted again 任务二：判断正误 (T/F) 1. Protecting rivers is the work of the government alone. (  ) 2. We should protect rivers for future generations. (  ) 任务三：简答 1. Who should make efforts to protect rivers? _______________________________________________________________________________ 任务四：微写作（2‑3 句） Say something about river protection. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 【参考答案】 夯实基础 一、单词汉译英 1.guardian 2.fisherman 3.smelly 4.ban 5.wastewater 6.steady 7.generation 二、短语汉译英 1.Guardians of the Yangtze River 2.used to 3.wastewater 4.ban fishing 5.future generations 三、词形变换 1.guardian 解析：guard 动词守护；guardian 名词守护者。 2.fisherman; fish 解析：fish 动词捕鱼；fisherman 渔民；fish 鱼，复数 fish。 3.smelt; smelly 解析：smell 动词闻；过去式 smelt；smelly 形容词臭的。 4.banned 解析：ban 动词禁止，过去分词 banned。 5.generation 解析：generate 动词产生；generation 名词一代。 能力进阶 一、单句填空 1.guardians 解析：one of + 复数名词。 2.fisherman 解析：a 后接单数名词。 3.smelly 解析：形容词作表语。 4.banned 解析：被动语态 be banned “被禁止”。 5.generations 解析：future generations 后代，常用复数。 二、句型转换 [1.As](1.As) a result 解析：as a result “结果”，表因果。 2.used to be 解析：used to be 过去曾经是。 3.were built 解析：一般过去时被动语态，centres 复数，were+built。 三、选词填空 1.guardian 2.fishermen 3.smelly 4.ban 5.generation 四、补全对话 答案：1.B 2.C 3.A 4.D 5.E；多余项：F 解析： 1. 答句回答工作，选 B； 2. 答句回答污染的原因，选 C； 3. 答句描述过去河流样子，选 A； 4. 答句讲政府采取的行动，选 D； 5. 答句讲现在河流的状态，选 E。 拓展提高 Passage1 任务一：1.A 2.A 任务二简答：Waste from factories and houses and too‑much fishing polluted the river. Passage2 任务一：1.B 2.A 任务二：1.F 2.T 任务三简答：The government, communities and every common person should make efforts. 任务四范文： River protection is very important. We should keep rivers clean for our future generations. Everyone can do something small. 学科网（北京）股份有限公司 $