Unit 13SectionA（1a～2c）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”主题，聚焦污染类型、成因及解决措施，通过视频导入水污染话题，逐步扩展至空气、噪声、废弃物污染，结合词汇分类、听力理解和角色扮演，构建从感知到应用的学习支架。 其亮点在于融合语言能力、思维品质与文化意识，如问题分析表格引导学生探究污染成因及解决办法，提升思维层次，角色扮演活动强化语言表达，环保主题渗透“共住地球村”责任意识。多样化活动与结构化练习助力学生综合运用知识，教师可直接依托资料高效开展教学。

Unit 13 We are trying to save the earth！ SectionA 1a-2c New words 乱扔；垃圾；废弃物v.& n. 渔民；钓鱼的人n. 煤；煤块n. litter fisherman coal 丑陋的；难看的adj. ugly 优点；有利条件n. advantage wooden plastic cost 塑料的； adj. 塑料；塑胶 n. 花费；价钱n. 木制的；木头的adj. takeaway bin 外卖食物 n. 垃圾箱 n. Lead-in: watch a video What kind of pollution is it? Water pollution. What kind of pollution do you know? water pollution air pollution noise pollution waste pollution What caused these problems? Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. 1a be related to 与...相关；涉及 add sth 增加... add A to B把A加到B中 add up to...总共达... loud music cars rubbish planes littering ships factories smoking building houses mobile phones loud music cars rubbish planes littering ships factories smoking building houses mobile phones noise pollution ____________ ____________ ____________ ____________ air pollution ___________ ___________ ___________ ___________ water pollution ____________ ____________ ____________ ____________ loud music planes mobile phones building houses cars factories cars smoking building houses ships factories littering rubbish pollution为不可数名词，意为“污染；污染物”，其动词形式为pollute。 形容词形式为noisy 【辨析】noise, sound与voice noise sound voice 意为“噪音，喧闹声”，常指不悦耳、不和谐的嘈杂声。 泛指自然界的各种声音。 一般指人的嗓音，如说话、唱歌、谈笑声等。 Don’t make _______ in the class! Light travels much faster than ________. The girl has a sweet _______. noise sound voice 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 n. 渔民 solve problems 解决问题 河底 Tapescripts: 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 Tony: No way! It used to be so clean. In fact, it has always been the nicest river in this town. 不可能 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. 关闭 参与 Mark: Not anymore. I think people are throwing litter into the river. Factories are also putting waste into the river. 再也不是了 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 throwing litter into the river. Tony: Everyone in this town should play a part in cleaning it up! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a. be full of = be filled with 充满…… play a part/role in 在……方面起作用 at/on the bottom of 在……底部 1c used to do 过去常常做某事 be/get used to (doing) sth. 表示“习惯于（做）某事”。 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 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. cars pollute more are throwing away public places turn ...into...转变，变成 Interviwer: 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! Interviwer: Great ideas! What about waste pollution? 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 cans and keep public places clean and beautiful for everyone. Interviwer: So together, our actions can make a difference and lead to a better future! 减少、砍倒 make a difference (to…)表示(对……)产生影响或作用 导入 Use the information in 2a and 2b to role-play conversations between Jason and Susan. 2c The air has become really polluted around here. I’m getting very worried. Yes, I used to be able to see stars in the sky. The problem is that… PHRASES 1. ____________ __________ 环境保护 2. be ______of.../be ______ with 装满... 3. ___ the_______ of 在……底部 4. ______ problems 解决问题 5. close ______ 关闭，停业 full filled protection environmental bottom at solve down 6. ________ 清理 7. _______... ______... 把…扔进… 8. play a ________ _______... 在...起作用 9.________ 减少，砍倒 10.make __ __________ ___....对...有影响 clean up throw into part/role in cut down a difference to 1. He _____ go out with his parents, but now he _____ staying at home alone. A. used to; is used to B. is used to; used to C. used to; used to D. is used to; is used to 2. The interesting book _____ me 10 yuan. A. took B. paid C. spend D. cost 二、单项选择。 3. We must do something useful to ____ pollution. A. cut off B. cut up C. cut down D. cut in 4. Smoking can ____ lung cancer. You’d bettter give it up. A. work on B. lead to C. take away D. put out 5. The smartphone makes a big _______ to our life. A. difference B. decision C. progress D. prediction 6. What a nice day! We should go sightseeing _______ watching TV in the hotel. A. because of B. instead of C. together with D. out of 共住地球村 保护环境，人人有责 $