Unit5知识点-Understanding ideas-Grammar练习 2026-2027学年外研版英语九年级上册

**基本信息** 初中英语九年级上册Unit5，围绕Understanding ideas-Grammar知识点设计的同步练，新授课场景下通过三级分层练习，实现从定语从句引导词基础应用到语篇综合表达的递进，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| |----|----------|----------| |小试牛刀|that/which/who基础用法|通过单句填空（A）和句子合并（B），聚焦引导词与先行词匹配，夯实语法基础| |配套练习|引导词在不同语境中的应用|单项选择（A）辨析易混选项，短文填空（B）在环保主题语篇中强化语用能力| |拓展思考|定语从句的综合表达|写作任务要求用至少三个定语从句描述自然景观，提升语言输出与思维逻辑性|

九年级英语上册Unit5知识点-Understanding ideas-Grammar练习 小试牛刀 A. 用 that, which 或 who 填空。 1. A forest is an ecosystem __________ supports the living of many plants and animals. 2. Some people __________ are harming the environment should be punished. 3. The oceans __________ cover over 70% of the earth's surface are crying out for help. 4. Sea animals __________ can’t live with higher temperatures are suffering from global warming. 5. Many animals __________ live in the sea are disappearing because of overfishing. B. 用 that, which 或 who 连接下列句子。 1. A farmer is a person. He works hard to grow food for us. → A farmer is a person ____________________. 2. I read a book about nature. The book was very interesting. → The book ____________________ was very interesting. 3. She is the volunteer. She helped save the injured bird. → She is the volunteer ____________________. 4. This is the river. It flows through our town. → This is the river ____________________. 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. A wetland is an area ______ is often covered with water. A. who B. which C. whom D. where 2. The scientist ______ discovered the new plant is my neighbour. A. which B. whom C. who D. whose 3. We should protect the rainforests ______ are home to many animals. A. who B. which C. where D. when 4. Do you know the girl ______ is planting trees over there? A. which B. whom C. who D. whose 5. This is the notebook ______ I use to record my eco-friendly actions. A. who B. which C. where D. when B. 用 that, which 或 who 完成短文。 Save the oceans The oceans 1. __________ cover over 70% of the earth's surface are crying out for help. Sea animals 2. __________ can’t live with higher temperatures are suffering from global warming. Pollution is also a big problem for the oceans. More than 80% of ocean pollution comes from land! Many animals 3. __________ live in the sea are disappearing. Overfishing is the main cause of this. For people 4. __________ are worried about the oceans, there's a lot 5. __________ we can do. First, we must use green energy 6. __________ produces little or no greenhouse gases. This will help slow global warming. Second, sea pollution should be controlled. People must stop throwing rubbish into the oceans. Finally, we should stop overfishing. People can only fish during a fixed period of the year. There is no time to waste. We must act NOW, or we will only see beautiful sea animals in museums. 拓展思考 写一段话（至少5句）介绍你最喜欢的一种自然景观或生态系统（如森林、海洋、湿地等）。使用至少三个定语从句（用 that, which 或 who）。例如：The forest that I visited last summer is very beautiful. There are many animals which live there. The people who protect the forest are real heroes. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. that / which 2. who 3. that / which 4. that / which 5. that / which 小试牛刀 B 1. who works hard to grow food for us 2. that/which I read about nature 3. who helped save the injured bird 4. that/which flows through our town 配套练习 A 1. B 2. C 3. B 4. C 5. B 配套练习 B 1. that/which 2. that/which 3. that/which 4. who 5. that/which 6. that/which 拓展思考（示例） I love the ocean which covers most of our planet. The sea animals that live in the ocean are very colourful and amazing. People who throw rubbish into the sea are harming these animals. We should all do something that can help protect the ocean. For example, we can reduce plastic waste which often ends up in the sea. The volunteers who clean up beaches are true heroes. I hope one day I can join them and protect the beautiful world that we all share. That's my dream. Let’s do it together. Yes, we can. Thank you. 1 学科网（北京）股份有限公司 $