Unit13 We’re trying to save the earth！ Section A（1a-2d）（教学课件）-2025-2026学年人教版（2012）英语九年级全册

Unit13 We’re trying to save the earth！ Section A（1a-2d） 1 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 pollution Lead-in water pollution noise pollution air pollution land pollution water pollution rubbish polluted water fisherman How should the problem be solved? no more fish The government should close down these factories. Everyone should help to clean up the river. 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 land/waste pollution litter [ˈlɪtə(r)] n. 杂物，垃圾 bin [bin] n. 垃圾箱 litter [ˈlɪtə(r)] v. 乱丢 = throw litter (1) People shouldn't throw litter/ litter. Instead, we should throw it in a bin. How should the problem be solved? (2) Never take wooden chopsticks or plastic forks when you buy takeaway food. air pollution more and more cars black smoke coal [kəʊl] n. 煤；煤块[U] What caused the problem? People should walk or ride a bike instead of driving a car. The factory can use some clean and green source of energy instead of burning coal. How should the problem be solved? 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 noise pollution ____________ ___________ ____________ ____________ air pollution ___________ ___________ ___________ ____________ water pollution ____________ ____________ ____________ ____________ loud music planes/ cars mobile phones factories cars smoking ships factories littering rubbish building houses building houses loud music cars rubbish planes littering ships factories smoking building houses mobile phones Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. 1a Listen and complete the sentences. 1b 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 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. 2a A. land pollution B. air pollution C. noise pollution D. water pollution Listen again and complete the sentences. 2b The air is badly polluted because there are __________ on the road these days. Factories that burn coal also _______ the air with a lot of black smoke. There is also too much rubbish and waste. People _________________ things every day. People are also littering in ____________ like parks. This is turning beautiful places into ugly ones. more cars pollute are throwing away public places 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 Read the conversation and fill in the chart. Jason Susan air pollution waste pollution ways problems We should ride a bike. We should take the bus or subway instead of driving. 1. Bring a bag to go shopping. 2. Remember to throw rubbish in the bins. 3. Keep public places clean and beautiful. Never take wooden chopsticks or plastic forks when he buys takeaway food. 2d e.g. 你们怎么看在外面吃饭？ What are your ideas for eating out? What are your opinions about eating out? 解决这些问题，你们有什么想法？ ideas for ……的想法 opinions on/ about ……的看法 Language points Jason and Susan, what are your ideas for solving these problems? 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 to do sth. 位于句首表目的 为了赶早班车，他5点半就起床了。 To catch the early bus, he got up at 5:30. 为了减少空气污染，我们应该乘公共汽车或地铁，而不是开车。 To cut down air pollution, we should take the bus or subway instead of driving. 骑自行车还有其他的好处。它对健康有益，而且不用花费任何东西。 be good for 对……有益 be bad for 对……有害 Sth. cost(s) sb. some money. 某物花费某人多少钱 There are other advantages of bike riding. It’s good for health and it doesn’t cost anything! 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 spend, pay, take, cost 都可表示花费 1) spend多表示花费时间和金钱，主语通常是人， 常用两种句型: sb. spend(s) some time / money on sth. sb. spend(s) some time / money (in) doing sth。 e.g. David spent 20 yuan on his takeaway. My grandfather spends an hour (in) watching TV every day. 2) pay多表示花费金钱，主语通常是人， 常用句型: sb. pay(s) some money for sth.。 e.g. David paid 20 yuan for his takeaway. 4) cost多表示花费金钱，主语通常是物，常用句型: sth. cost(s) (sb.) some money。 e.g. The takeaway cost David 20 yuan. 3) take多表示花费时间，常用句型： It takes sb. some time to do sth. 其中it作形式主语。 e.g. It usually takes my grandfather an hour to watch TV. 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 根据句意用take, spend, pay或cost的适当形式填空。 1. That new car ________ them lots of money. 2. Mona __________ 50 yuan on the books just now. 3. It usually _______  me an hour to do my homework. 4. You should __________  some time practicing your pronunciation. 5. My brother _______ 6, 000 yuan for the new computer yesterday. costs   spent  takes spend paid 还要记得把垃圾扔进垃圾箱，为了大家保持公共场所的整洁和美丽。 remember to do sth. 记得要做某事（事情还没做） remember doing sth. 记得做过某事（事情已经做了） e.g. Remember to face difficulties with courage. 记住要勇敢面对困难。 And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone. 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 因此，齐心协力，我们的行动就能起作用，就会创造更加美好的未来！ make a difference 起作用；有影响 The accident has made a great difference to her. 这次事故对她产生了重大影响。 lead to sth. 引起，通往 The heavy rain led to a flood. 大雨导致了洪水。 So together, our actions can make a difference and lead to a better future! Exercises Ⅰ. 根据汉语意思完成英语句子。 1. 工人们正在竭尽全力降低事故率。 The workers are doing all they can ___________ the accident rate. 2. 左边第二个房间里堆满了书。 The second room on the left is _________________ books. 3. 你应该向那些参与挽救病人的医生道谢。 You should say thanks to those doctors who have _________________ saving the patient. to cut down full of / filled with played a part in 系统掌握英语学习方法至关重要，多年经验表明，绘制知识图谱能有效增强动机。关键学习策略，模仿标准发音能有效提升听力敏感。数据表明，选择适合自己水平的材料。教师普遍建议，建学习博客能有效培养毅力。根据教学实践，完成语法练习能有效建立正反馈。国际研究表明，头脑风暴能有效巩固语法体系。深度学习英语设定周目标能有效优化学习策略。找到适合自己的节奏和方法是成功的关键。深层次看，选择适合自己水平的材料。 4. 我的目的是把这件坏事变成好事。 My purpose is to ______ this bad thing ______ a good one. 5. 保持教室干净是我们的责任。 It’s our duty to ______ the classroom ______. 6. 我们小区的噪音污染很严重。 The _______________ in our neighborhood is very serious. turn keep into clean noise pollution 54856.277 77478.93 74030.43 $