【正文】 Unit 13 We’re trying to save the earth! 一、 教學(xué)目標(biāo) ： 1. 語言知識(shí)目標(biāo) 基本詞匯 ： litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation, recycle, napkin, upside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本詞 組 ： be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull… down, bring back 基本句型 ： We’re trying to save the earth! The river used to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標(biāo) : 能 正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語態(tài)，情態(tài) 動(dòng)詞和 used to 句型。 3. 情感目標(biāo) : 有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。 二、 教學(xué)重 難 點(diǎn) ： 1. 教學(xué)重點(diǎn)：（ 1） 能 正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語態(tài)，情態(tài)動(dòng)詞和 used to 句型。 （ 2）保護(hù)環(huán)境的措施方法。 2. 教學(xué)難點(diǎn)： 能正確運(yùn)用現(xiàn)在進(jìn)行時(shí)，現(xiàn)在完成時(shí)，被動(dòng)語態(tài)，情態(tài)動(dòng)詞和 used to 句型。三、 教學(xué)步驟 : Section A 1 (1a2d) I. Presentation Show the picture of the earth and tell students the earth is polluted now. For example: (1) The factories that burn coal pollute the air with a lot of black smoke. (2) Factories put waste into the river. (3) People should throw away litter in the bin. (4)There are more cars on the road. II. Learning Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????noise pollution air pollution water pollution ____________ ___________ _____________ ____________ ___________ _____________ ____________ ___________ _____________ ____________ ___________ _____________ Keys : noise pollution loud music planes mobile phones building houses air pollution factories smoking cars building houses water pollution ships rubbish littering factories III. Listening 1. 1b Listen and plete the sentences. ???????????????????????????????????????????????????????????????????? 底部??????????????????????????????????????????????????????????????????????????????漁民 ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????Keys: really dirty rubbish fish litter waste government close down clean up 2. Listen again and check (√ ) the sentences you hear. 1) We could go fishing in the river. 2) The river was really dirty. 3) The river has always been the nicest river in this town. 4) We should ask the teachers for help. Keys: 2 3 IV. Practice 1. Roleplay the conversation in 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! 2. Make conversations using the pollution in 1a. A: The river has always been the nicest river in this town. B: Yes, it used to be so clean. A: But I was there last weekend and the river was really dirty. B: What caused the problem? A: People are throwing litter into the river. B: What should we do? A: Factories are also putting waste into the river. B: Yes, everyone in this town should play a part. A: We should write to the government and ask them to close down the factories. B: What else can we do? A: Everyone should help to clean up the river. V. Language points 1. We’re trying to save the earth! 我們正在竭盡全力拯救地球 ! try to do =try one’s best to do 努力去做某事。 . Every student should try to study hard in order to study in a university. 為了進(jìn)入大學(xué)學(xué)習(xí)，每個(gè)學(xué)生都應(yīng)該努力學(xué)習(xí)。 2. Here are some words related to different kinds of pollution. be related to 與 … 有關(guān) . I am not related to him in any way. 我和他無任何關(guān)系。 3. Everyone in this town should play a part in cleaning it up! play a part in 在 …… 方面起作用 . A good diet plays a large part in helping people live longer. 健康的飲食在幫助人們長壽方面起著非常大的作用。 play a part 在 …… 中扮演 角色 . He was invited to play a part in this TV play. 他被邀請參加這個(gè)電視劇的演出。 4. Even the bottom of the river was full of rubbish. Yes, but people are throwing litter into the river. litter 和 rubbish 都可指 “垃圾 ”，用作不可數(shù)名詞。 rubbish 指 “沒用的東西 (被扔或?qū)⒁獊G棄的無用的東西 )”不 可回收。 litter 指 “(室內(nèi)或公共場所 )亂扔的廢物 (紙屑、不要的包裝紙、廢瓶等 )”還可回收 . Throw the rubbish out. 把垃圾扔出去。 The room is full of rubbish. 房間里堆滿了垃圾。 Pick up your litter after a piic. 野餐后將廢棄物收拾好。 VI. Listening 1. 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 Keys: B A 2. 2b Listen again and plete 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. 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 (丑陋 ) ones. Keys: more cars pollute are throwing away public places 3. Listen and answer the questions. 1) Who is the interviewer talking to? 2) What are they talking? 3) What other problems do they see? Keys: Susan and Jason. The environmental problems. There’s too much rubbish and waste in the streets. VII. Practice (2c) Use the information in 2a and 2b to roleplay conversations between Jason and Susan. Jason: The a