Unit 13 第1课时 Section A 1a-2d（同步课件）-【上好课】2024-2025学年九年级英语全册同步精品课堂（人教版）

nullnullnull Unit 13 We're trying to save the earth! 第1课时 Section A 1a~2d 初中英语 / 人教版 / 九年级全册 Contents Lead-in 1 Pre-listening 2 While-listening 3 Post-listening 4 Language points 5 Exercises 6 Summary 7 Homework 8 01 02 03 04 语言能力 思维品质 文化意识 学习能力 学习目标 掌握下列词汇： litter ,ugly,at the bottom of the river be full of the rubbish, throw litter into the river,play a part in 树立环保意识，激发社会责任感和对未来的思考。 能听懂关于环境污染的英文表达，独立完成听力任务。 能运用本单元词汇和句式谈论环境污染和环境保护的话题。 通过听力活动练习，能精准提取关键信息，锻炼思维的逻辑性。能在实际情景对话中认识解决空气污染和垃圾污染的方法。 0 1 Lead-in Lead in litter v. 乱扔 n. 垃圾；废弃物 bottom n. 底部；最下部 3. fisherman n. 渔民； 钓鱼的人 coal n. 煤；煤块 ugly adj. 丑陋的；难看的 advantage n. 优点；有利条件 cost (cost, cost) v. 花费 n. 花费；价钱 wooden adj. 木制的；木头的 plastic adj. 塑料的 n. 塑料；塑胶 takeaway n. 外卖实物 bin n. 垃圾箱 New words Lead in 1.What happened to the environment? Look at our earth! The earth is polluted. 2. What kinds of pollution does the video show? air pollution water pollution Lead in 6 3. What other kinds of pollution do you know? noise pollution waste\land pollution Lead in 7 4. What caused these problems? Air pollution The factories that burn coal pollute the air with a lot of black smoke. Cars pour harmful gases into the air. Some people smoke in public places. n. 煤炭 The weather is always foggy. We can't see the blue sky. We can't breathe the fresh air. Lead in 8 4. What caused these problems? Factories put waste into the river. People are throwing litter into the river. n. 垃圾，废弃物 Water pollution Noise pollution Loud music, building houses and traffic cause the noise pollution, Lead in 9 Serious Pollution noise pollution air pollution water pollution We are harming our planet in so many ways. Lead in 10 0 2 Pre-listening Pre-listening 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 Pre-listening 12 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 noise pollution air pollution water pollution loud music, planes, building houses, mobile phones cars, factories, smoking, building houses rubbish, littering, ships, factories machines power plants Sewage(污水) 1a Pre-listening 13 听力热身 dirty; full of rubbish throw litter into… put waste into… clean up the river ; close down 减少 the factories Pre-listening 14 0 3 While-listening While-listening 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 1b △bottom n. 底部，最下部 The police found a body at the bottom of the lake. While-listening 16 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. 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. play a part in doing sth.“参与做某事，在做某事上起作用。 Read after the tape aloud. 1b 关闭 曾经……; 过去经常…… ……的底部 While-listening 17 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! Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a. 1c problem cause solution While-listening 18 Jason Susan Environmental problems While-listening 19 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 2a While-listening 20 Listen again and circle T or F. 1.Jason thinks that the air is badly polluted. T / F 2.Susan used to see the mountains clearly. T / F 3.People are also littering in public places. T / F 4.They think that they can do nothing to help. T / F 5.They are talking about the noise pollution. T / F 2a While-listening 21 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 parks into ugly ones. more cars pollute are throwing away public places While-listening 0 4 Post-listening Post-listening Use the information in 2a and 2b to role-play conversations between Jason and Susan. 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… 2c Post-listening 24 Read the conversation and fill in the chart. 2d 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. Post-listening 25 减少 起作用，有影响 the advantage of …“…的优点” 2d Post-listening 26 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 Post-listening 27 How can we live a green life and save our earth ? stop riding in cars turn off the lights when we leave a room recycle books and paper If we all play a part in protecting the earth, it will be better tomorrow. Post-listening 28 Make a poster! The earth is badly polluted. Please make a poster and think of what we can do. Save the earth! Post-listening 29 0 5 Language points Language points 1、noise pollution 噪声污染（P97） 【知识详解 】 1)noise〔名词〕噪声 make noises=make a noise 制造噪声 the noise of the traffic 交通噪声 ☞If you make noises at night, my dog will bark. 2）辨析：noise, sound与voice Language points ☞Don't make noises! ☞Light travels much faster than sound. ☞The boy has a beautiful voice. 3)pollution〔不可数名词〕污染，污染物 动词形式为pollute（污染）；形容词形式为polluted（被污染的） air pollution 空气污染 water pollution 水污染 land pollution 土地污染 ☞There's lots of pollution in the air here. ☞The river has been polluted by waste water from the factory. ☞Don't pour polluted water everywhere. 2、Yes, but people are throwing litter into the river.是的，但人们正在把垃圾扔进河里。（P97） 【知识详解】 1) litter Language points ①〔不可数名词〕垃圾；废弃物 ☞There are no more people throwing litter in public places. ②〔动词〕乱扔 ☞Don't litter in parks. ☞Ask him not to litter paper everywhere. 2）辨析：litter,rubbish 与 waste 三者都可用作名词，均含“垃圾，废弃物”之意。 litter 指随手丢弃的垃圾 Please do not drop litter everywhere.请不要到处扔垃圾。 rubbish 指任何成堆的、破损的、用过的或无用的东西 You'd better not throw the rubbish on the ground. 你最好不要把垃圾扔在地上。 waste 指任何被丢弃的东西 There will be no waste as long as we have a little creativity.只要我们有点儿创意就不会有废物。 Language points 3、Everyone in this town should play a part in cleaning it up！这个镇上的每个人都应该参与清理它！（P97） 【知识点详解】 （1）常考点：play a part in在此处表示“参与……”，同义短语为take part in。 （2）play a part in还可表示“在……方面起作用； 在……中扮演角色”，此时可与play a role in互换。 ☞Friends play an important/role in our lives. 朋友在我们的生活中发挥着重要作用。 4、Well, to cut down air pollution, we should take the bus or subway instead of driving. 嗯，为了减少空气污染，我们应该乘坐公共汽车或地铁，而不是开车（P98） 【知识点】 cut down意为＂减少＂；是＂动词+副词＂结构的短语，其后接的宾语为名词时，宾语可位于down的前面或后面，为代词时，只能位于down前面。 in为介词，其后接动词-ing形式， play a part in doing sth 参与做某事 Language points ☞ Car owners were asked to cut down travel. 车主们被要求减少出行。 ☞ Trees are helpful to us. Don’t cut them down. 树对于我们有益处，不要砍伐它们。 【易混辨析】 cut down 砍倒；减少 People cut down many trees so a lot of animals lose their homes. 人们砍倒了很多树，因此很多动物失去了它们的家。 cut off 切掉 The doctor had to cut off his arm to save his life. 为了挽救他的生命，医生不得不将他的胳膊截肢。 cut out 删除 You can cut out the unimportant details. 你可以删掉不重要的细节。 cut up 切碎 Cut up the meat, please. 请把肉切碎。 Language points 5、It’s good for health and it doesn’t cost anything! 它有益于健康，而且不用花钱！（P98） 知识点1： be good for的用法 be good for为固定短语，意为“对……有好处”，其反义短语为： be bad for “对……有害”。 【拓展延伸】“be good+介词”构成的其他常见短语： be good at 擅长于…… Li Ming is good at playing table tennis. 李明擅长打乒乓球。 be good to 对……友好 Our English teacher is good to all of us. 我们的英语老师对我们都很好。 be good with 善于应付 Are you good with kids? 你善于应付小孩吗？ Language points 知识点2： 重点：英语中的“四大金花”（pay, cost, spend与take） 6、So together, our actions can make a difference and lead to a better future! 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！（P98） 知识点1：make a difference 起作用，有影响 difference前可用big,great 等修饰，表示影响的程度。 make a difference to 对……产生影响 单词 主语 宾语 结构 pay 人 金钱 某人花多少钱买某物 cost 物 金钱 某物花了某人多少钱 spend 人 时间或金钱 某人在某物上花费时间/金钱 某人花费多少时间/金钱做某事 take 常用it作形式主语 时间 做某事花费某人多长时间 Language points You made me feel I was important and showed me that I could make a difference. The accident has made a great difference to her. 拓展 有关make的常用短语： make the bed 铺床 make tea沏茶 make trouble惹麻烦 make money 赚钱 make a living 谋生 make sure务必 make a decision 做决定 make a mistake犯错误 make a telephone call 打电话 知识点2：lead to ①引起（结果等） The heavy rain led to a flood. ②（道路等）通往…… All roads lead to Rome. Language points 拓展 lead的其他用法： ①lead sb.to+地点把某人带到某地 The road led them to a small wooden house. ②lead sb.to do sth.引导某人做某事 What led you to think so？ 7、Mmm, I think simple things like bringing a bag to go shopping can help.我认为像带一个袋子去购物这样简单的事能起到作用。（P98） 【知识点详解 】 bring(...to...)拿来: 把某物/人从别处带到说话处 Language points 【易混辨析】 carry, fetch/get与take Language points 0 6 Exercises Exercises Exercises 一、选择填空1. —Why do you choose to use Beidou Navigation (导航) Satellite System, Mr. Li?—Because I think it has many advantages ______ GPS (全球卫星定位系统). A. on　　B. in　 C. over 　　D. of2. It ______ Zhang Guimei many years to help about 1, 800 girl students in poor areas realize their college dreams. A. took　　B. spent　 C. cost　　 D. made 3. The smartphone makes a big ______ to our life. A. difference B. decision C. progress D. prediction4. —How much is the ticket to the Central Park?— A one-way ticket______ $40, and you can ______ another $20 for a round trip.A. costs; pay B. cost; spend C. pay; spend D. spends; pay5. Let's ______ the chicken and make some soup. A. look at B. cut up C. put off D. knock against √ √ √ √ √ Exercises 6. It’s necessary for the phubbers (低头族) to______ the time they spend on their smartphones.A. cut down B. cut off C. cut up D. cut in7. Diana used to______ to work, but now she is used to ______ because the road is crowded and she wants to keep fit.A. drive; walk B. drive; walkingC. driving; walk D. driving; walking8. —Your bedroom is so dirty.Would you please ______，Peter?—OK，mom.I'll do it right away.A. set it up B. put it on C. pick it up D. clean it up9. Let’s go hiking ______ staying at home, shall we?A. as well as B. in order toC. instead of D. in addition to10. —I really love this band!—______ ! I've got every CD they've made so far.A. Me，too B. Sounds good. C. I disagree. D. I hope so. √ √ √ √ √ Exercises 二、用括号内所给单词的适当形式填空1. Everyone should play a part in ________(save) the earth.2. Ann bought a pen yesterday.It ________ (cost) her 20 yuan.3. The box is ________(wood). It's too heavy for Linda to carry.4. Don't throw the ________ (litter) everywhere.You should throw it into the bin.5. Most of the ________ (fisherman) in the village stayed at home today because of the bad weather. saving cost wooden litter fishermen Exercises 三、根据提示完成句子1. 教室里挤满了学生。The classroom is ________ _______ students.2. 多读书对你的学习有好处。Reading more ____ _____ _____your studies.3. 手机对我们的生活产生了巨大的影响。The mobile phone _____ _____ _____ _____ ____ our life.4. 因为高铁站，这个小村庄已经变成了现代化的城镇。Because of the high­speed railway station，the village ______already _____ _____ a modern town.5. 我们应该向那些参与救人的医生们道谢。We should say thanks to those doctors who have ___ ___ ___ ____ ___the patients. full of/filled with is good for makes a great difference to turned into has played a part in saving 0 7 Summary Summary water pollution noise pollution air pollution causes loud music, building houses… factories, cars, planes… littering, ships, rubbish… solutions we/ people/ government/ … Protecting the environment problems Summary 47 0 8 Homework Homework Homework Review the new words and expressions. Practice the conversation in 2d. Finish the poster with your partners. Homework 49 Thank you! null 44851.9 54856.277 77478.93 74030.43 61386.55 $$nullnull