Unit 13 Section A (1a-1c)（讲解课件）-【优翼·学练优】2025-2026学年九年级英语下册同步备课（人教版）

该初中英语课件围绕“污染与环境保护”主题，涵盖litter、bottom等核心词汇及谈论污染的关键句型。通过视频导入引发兴趣，结合自由讨论、头脑风暴梳理污染类型，再以1a词汇分类活动搭建从感知到应用的学习支架，帮助学生构建知识脉络。 其亮点在于融合多模态资源与互动任务，通过视频模仿、角色扮演等活动提升语言能力，借助问题链分析污染原因与解决方法培养思维品质。例如1b听力任务引导学生梳理问题、原因、解决方法，1c角色扮演强化语言运用，既增强学生环保意识与表达能力，也为教师提供结构化教学方案，提升课堂效率。

优翼英语教学课件（RJ） Go for it! 九年级（下） 1 Section A (1a-1c) Unit 13 We’re trying to save the earth. Learning Goals Key words & phrases: litter, bottom,fisherman, environmental protection. Key sentences: 1. People are throwing litter into the river.Even the bottom of the river was full of rubbish. 2. Everyone in this town should play a part in cleaning it up! To talk about pollution and environmental protection. Words & Expressions Let's read litter bottom fisherman v. 乱扔 n. 垃圾；废弃物 n. 底部；最下部 n. 渔民；钓鱼的人 Let's watch a video ! Warming-up What do people do with the forests and animals in the video? What will happen if people continue to harm the nature? What can we do to protect the nature? Free talk How many kinds of pollution do you know? Brainstorm water pollution noise pollution land pollution air pollution pollution Lead in Look and say noise pollution Look and say air pollution Look and say water pollution Look and say land pollution Do you know what caused the pollution? What should we do to save the earth? Free talk Presentation 1a Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. loud music cars rubbish planes littering ships factories smoking building houses mobile phones litter/ˈlɪtə(r)/ v. 乱扔 n. 垃圾；废弃物 rubbish n. 垃圾；废弃物 noise pollution ________________________________________________________________________________________________ air pollution __________________________________________________________________________________________ water pollution ____________________________________________________________________________________ loud music planes building houses mobile phones (machines, crowds) cars factories smoking building houses (burning, power plants) rubbish littering ships factories (sewage, pesticides) 1b Listen and complete the sentences. What was the problem? The river was ___________. Even the bottom of the river was full of _________. There were no more ____________for fishermen to catch. What caused the problem? People are throwing ______________ into the river. Factories are putting ______________ into the river. How should the problem be solved? We should write to the _____________ and ask them to _____________ the factories. Everyone should help to _____________the river. really dirty rubbish fish litter waste government close down clean up Listen again and answer the questions. He wants to go swimming in the river. Because the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch. It used to be so clean. 2. Why doesn’t Mark want to go with Tony? What does Tony want to do later this afternoon? 3. How was the river in the past? Listen and read. Listen and read Tony: Hey, Mark, maybe we could go swimming in the river later this afternoon. Mark: I don’t think I want to go, Tony. Tony: Why not? Mark: I was there last weekend and the river was really dirty. Even the bottom of the river was full of rubbish, and there were no more fish for fishermen to catch. 下午晚些时候 ……的底部 Tony: No way! It used to be so clean. In fact, it has always been the nicest river in this town. Mark: Not anymore. I think people are throwing litter into the river. Factories are also putting waste into the river. Tony: That’s terrible! We should write to the government. They should close down the factories. Mark: Good idea! But I think everyone in this town should help to clean up the river, too. Everyone should play a part, not just the government. 曾经……; 过去常常…… 关闭 play a part=play a role 参与；扮演角色；起作用 Let's watch a video ! Try to imitate the pronunciation and intonation. 1c Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a. Mark: The river was dirty. Even the bottom of the river was full of rubbish. Tony: But it used to be so clean! Mark: Yes, but people are littering in the river. Tony: Everyone in this town should play a part in cleaning it up! Language Points 1.We’re trying to save the earth! 我们正在竭尽全力拯救地球! try to do = try one’s best to do 努力去做某事 e.g. We’ll try to finish the work in a week. 我们将努力在一周内完成这项工作。 2.Here are some words related to different kinds of pollution. be related to 与……有关 e.g. Is the driver related to the accident? 司机和这起事故有关吗？ 3. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river. litter和rubbish都可指“垃圾”，用作不可数名词。 litter指“（室内或公共场所）乱扔的废物（纸屑、不要的包装纸、废瓶等）”还可回收。 rubbish指“没用的东西（被扔或将要丢弃的无用的东西）”不可回收。 4.Everyone in this town should play a part in cleaning it up! play a part in 在……方面起作用 e.g. A good diet plays a large part in helping people live longer. 健康的饮食在帮助人们长寿方面起着非常大的作用。 Homework Preview the conversation in 2d. Do the exercises in students’ book. Thank you! 本文件著作权为创作公司所有, 仅限于教师教学及其他非商业性和非盈利性用途。如发现盗用、转卖、网络传播等侵权行为, 本公司将依法追究其相应法律责任。 部分素材选自网络, 如有争议, 请联系删改。 声 明 $