Unit 13 Section A 1a-2d 课件 2024-2025学年人教版九年级英语全册

Unit 13 We’re trying to save the earth! R 九年级全一册 Section A 1a-2d Learning objects (学习目标) By the end of the class, you will be able to … 1. Learn curriculum words and useful expressions: litter, bottom, fisherman, coal, ugly, advantage... 2. Talk about pollution and environmental protection. 3. Improve your listening skills through listening trainings. Look at the pictures and think How is the earth on the left different from the earth on the right? Why is this happening to the earth? pollution noise pollution white pollution water pollution air pollution light pollution soil pollution Our earth is hurt by all kinds of pollution. What kind of pollution can you think of on the earth? Brainstorm _ pollution _ pollution air water Look and fill in the blanks. What kind of pollution does the following picture belong to? _ pollution noise 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 1a 6 noise pollution air pollution water pollution loud music planes building houses mobile phones machines crowds cars planes factories smoking building houses burning power plants rubbish littering ships factories waste water industrial waste noise pollution 噪音污染 noise名词,意为“噪音”,pollution为不可数名词,意为“污染;污染物”,其动词形式为pollute ,意为“污染” 。 【辨析】noise, sound与voice noise常指不悦耳、不和谐的嘈杂声。sound泛指自然界的各种声音。voice一般指人的嗓音,如说话、唱歌、谈笑声等。 Before listening: Make a prediction Tony suggests going swimming in the river. But Mark doesn’t want to go. Why? Can you guess the reason why Mark doesn’t want to go swimming in the river? 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. really dirty rubbish fish 1b fisherman可数名词,意为“渔民;钓鱼的人”,由“fisher (n. 渔夫) + man (n.男人)”构成。复数形式是fishermen。 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. litter waste government close down clean up 【辨析】litter,rubbish 与waste litter指随手丢弃的垃圾。 rubbish指任何成堆的、破损的、用过的或无用的东西。 waste指任何被丢弃的东西。 Listening skill: Listen to the missing parts and write down the missing words. Listen and answer the questions. 1. Why doesn’t Mike want to swim in the river? 2. What was the river like in the past? 3. Why is this happening to the river? Because the river was really dirty. It used to be so clean. Because people are throwing litter into the river. Factories are also putting waste into the river. 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. Tapescripts: 下午晚些时候 河底 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. 不可能! 再也不是了。 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 Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a. 1c 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! used to意为“曾经……;过去……”,其后接动词原形,表示过去经常发生的动作或存在的状态。used不随人称和时态的变化而变化。 play a part in意为“参与……”,in是介词,其后可接名词、代词或动词-ing形式。其同义短语为take part in。 Role-play The air is dirty. The smoke from factories is black. But it used to be so clean and fresh! We should write to the government and ask them to close down the factories. Yes, but people are polluting the air. Can you make your own conversations? Before listening: Let’s guess. The interviewer is talking with Jason and Susan. What do you think the topic of their conversation is? 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 Listening skill: You don’t have to hear every word. Just pay attention to key words. 2b Listen again and complete the sentences. 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. cars pollute more 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. are throwing away public places Listening skill: Mark the key words in the sentences. Then listen for the key words and record the missing words. Listen and judge true (T) or false (F). Susan thinks the air is badly polluted. Susan used to see the stars clearly. There are fewer cars on the road these days. Factories that burn coal also pollute the air with a lot of black smoke. There’s too much rubbish and waste in the streets. Jason more Tapescripts: Interviewer: Today we’re talking to Jason and Susan about environmental problems. Jason and Susan, can you tell us about some of the problems you’ve seen? Jason: I think one problem is that the air is badly polluted. I hardly ever see blue skies anymore. Susan: Yes, and I used to see the stars clearly. Interviewer: What do you think has caused this problem? Susan: Well, there are more cars on the road these days. Jason: And factories that burn coal also pollute the air with a lot of black smoke. Interviewer: What other problems do you see? Susan: I guess there’s too much rubbish and waste in the streets. ① ② Jason: Yes! Every day people are throwing away things like wooden chopsticks, plastic bowls and plastic bags. Susan: They’re also littering in public places, for example, during picnics in parks. This is turning beautiful places into ugly ones. Interviewer: You’re right. These are serious problems for our environment. Next, let’s talk about the things we can do to help. ③ ④ Use the information in 2a and 2b to role-play conversations between Jason and Susan. 2c Jason: The air has become really polluted around here. I’m getting very worried. Susan: Yes, I used to be able to see stars in the sky. Jason : The problem is that ... There is too much rubbish and waste in our city. Yes, people are littering in public places. Work in pairs and imitate the dialogue below to talk about the environmental problems you’ve seen. ... ... This is turning beautiful places into ugly ones. Before reading: Let’s guess. How do Jason and Susan solve these environmental problems mentioned above? Pollution Ways to solve the problem air pollution waste pollution Bring a _ to go shopping. bag wooden Take the bus, _ or ride a bike instead of driving. plastic rubbish Read and complete the chart. Never take _ chopsticks or _ forks when buying takeaway food. Throw _ in the bins. subway 2d Role-play the conversation. 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! instead of 意为“代替,而不是”,其后一般接名词、代词或动词-ing形式作宾语。 instead是副词,意为“代替;相反”,常位于句首或句末作状语。 cut down“动词+副词”型短语,意为“削减;缩小(尺寸、数量或数目)”。 have an/the advantage over 胜过…… take advantage of 利用…… be good for 对……有益 Sth. cost(s) (sb.)+金钱. 某物花费(某人)多少钱。 Interviewer: 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. 可数名词,意为“外卖食物”。 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 a better future! make a difference意为“影响;有作用”。make a difference to意为“对……产生影响”。difference前面可加修饰语,如 big, great等,表示影响的程度。 lead to意为“引起(结果等);通向(某地)”。 remember to do sth.记得去做某事(事情还没有做) remember doing sth.记得做过某事(事情已经做了) Watch and read Retell the conversation as prompted below. Ways to cut down air pollution take the bus take the subway ride a bike Ways to cut down waste pollution bring a bag to go shopping never use wooden chopsticks or plastic forks throw rubbish in the bins Summary Words & phrases: litter, bottom, fisherman, coal , ugly, advantage, cost, wooden, plastic, make a difference, instead of... Sentences: ① Everyone in this town should play a part in cleaning it up! ② To cut down air pollution, we should take the bus or subway instead of driving. ③ Our actions can make a difference and lead to a better future! 1. Review key words, sentences and language points. 2. Practice the conversation on Page 98 and talk about your opinions about solving environmental pollution with your partners. Homework Protecting our environment is a duty for everyone. 36 $$nullnullnullnullnull