Unit 13 Section A (1a-2d)（课件） 2025-2026学年人教版（2012）九年级英语全册

该初中英语课件围绕“环境保护与污染问题”展开，核心知识点包括污染类型（空气、水、噪音污染）、成因及解决措施。课堂导入通过对比美丽地方图片与污染视频，结合提问“What do you see in these two videos?”引发兴趣，从“地球被污染”过渡到污染定义、类型辨析，再到分析成因，搭建“现象—原因—解决”的学习支架，帮助学生逐步深入主题。 其亮点在于融合多模态输入与任务型活动，通过视频导入激活兴趣，听力练习（1b、2a）提升语言理解能力，角色扮演对话（2d）与小组讨论“How to live a green life”培养语言表达与思维品质，结合“remember to do sth”等环保短语及“变废为宝”作业，促进学习能力发展。实例中，学生通过分析污染成因并role-play解决方法，既提升语言运用能力，又增强环保意识，教师可借助结构化活动设计提高课堂效率。

Unit 13 We’re trying to save the earth ! Section A (1a-2d) Do you like these beautiful places? Lead in What do you see in these two videos? How do you feel about these two videos? Lead in Do you like these beautiful places? Lead in Lead in But now, the earth is polluted. Lead in What is pollution? Lead in What kind of pollution do you know ? water pollution noise pollution pollution air pollution loud music cars rubbish planes littering ships factories smoking building houses mobile phones litter v. 乱扔 n. 垃圾；废弃物 cars factories smoking building houses (burning, power plants) rubbish littering ships factories loud music planes building houses mobile phones (machines, crowds) noise pollution air pollution water pollution What caused these problems ? Let’s think : listen and complete the sentences in 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关闭 clean up causes solution problem Everyone in this town should play a part in cleaning it up ! While -listening 底部；最下部n. fisherman 渔民；钓鱼的人n. fishermen(复数形式） throw...into...把。。。扔进。。。 put...into...把。。。放进。。。 play a part in doing sth在。。。中起作用 What causes water pollution? Factories put the waste into the river. What can we do to solve it? throw...into... put...into... People throw litter into the river. help to clean save water close down the factories make serious laws about water protection we the government people factories Post-listening: give a report There are many serious problem about our enviroment. I think one of them is ... (problem) That is because people..., some factories...(cause) To solve this probelm, I think...(solution) I believe that the earth will be better and better if we try to protect it.(wish) throw...into... put...into... people factories we make serious laws about water protection the government close down the factories save water Susan Jason What kinds of pollution are they talking about ? 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution 1. The air is badly polluted because there are ___________ on the road these days. 2. Factories that burn coal also _________the air with a lot of black smoke. 3. There is also too much rubbish and waste. People ________________ things every day. 4. People are also littering in ______________ like parks. This is turning beautiful places into ugly ones. more cars pollute are throwing away public places Listen again and complete the sentences. 2b Jason: The air has become really polluted around here. I’m getting worried. Susan: Yes, I used to be able to see stars in the sky. Jason: The problem is that ... Use the information in 2a and 2b to role-play conversations between Jason and Susan. 2c Read the conversation and fill in the chart. Jason Susan air pollution waste pollution Ride a bike. Take the bus or subway instead of driving. Bring a bag to go shopping. remember to throw rubbish in the bins and keep public places clean and beautiful. Never take wooden chopsticks or plastic forks when he buys takeaway food. ways problems 2d Interviewer: Jason and Susan, what are your ideas for solving these problems? Jason: Well, to cut down air pollution, we should take the bus or subway instead of driving. Susan: Yeah, or ride a bike. There are other advantages of bike riding. It’s good for health and it doesn’t cost anything! Interviewer: Great ideas! What about waste pollution? Role-play the conversation. 减少 解决 代词放中间，名词放两边 相反，而不是 花费 Susan: Mmm, I think simple things like bringing a bag to go shopping can help. I started doing that a year ago. Jason: Me, too. Also, I never take wooden chopsticks or plastic forks when I buy takeaway food. I use the ones at home. Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone. Interviewer: So together, our actions can make a difference and lead to better future! 外卖 remember to do sth remember doing sth keep sb/sth +adj. make a difference to lead to 导致 Retell the conversation by filling in the blanks. An interviewer is asking Susan and Jason their opinions on _______ polluted problems. Jason suggests taking the bus or subway __________ driving can help ___________ the air pollution. Susan adds other___________ of bike riding. It ____________ health and it doesn’t _______ anything. Susan also says simple things _____ bringing a bag while go shopping can help. And Jason never uses _________ chopsticks or _______ forks when he buys _________ food. Susan reminds people to _____________ throw rubbish in the bins ________ the public places clean and beautiful. If people work together, their actions will ________________ and ________ a better future. solving instead of cut down advantages is good for cost like wooden plastic takeaway remember to to keep make a difference lead to 2d Groupwork How can we live a green life and save our earth ? Things which can be done by people every day: stop riding in cars turn off the lights when we leave a room Things which can be done by people every day: turn off the shower while we are washing our hair recycle books and paper 给……写信 河底 往河里扔垃圾 把……打扫干净 土地 / 空气 / 噪音 / 水污染 把……变成…… 减少空气污染 write to ...  the bottom of the river throw litter into the river clean up ... land / air / noise / water pollution turn ... into ...  cut down air pollution 代替 对……有好处 外卖食品 保持公共场所干净美观 影响；有作用 带来；导致 instead of be good for ...  takeaway food keep public places clean and beautiful make a difference  lead to  We have _______ too many trees and destroyed the environment. A. cut into B. cut off C. cut up D. cut down —Excuse me. Could you tell me 　　　　? —It will leave at 4:00 p.m.A.how you will go to ShanghaiB.when will the bus leave for Shanghai 　　　C.when the bus will leave for Shanghai Homework Turn waste into treasure.变废为宝 Use some waste to make a useful thing and show the work in the next class. 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