【正文】 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(yǔ)態(tài)，情態(tài) 動(dòng)詞和 used to 句型。 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(wú)任何關(guān)系。 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 air has bee 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… VIII. Discussion Ask students what we should do to save the earth. Help students answer, turn off the lights when you leave a room。 cost take， spend， pay 和 cost 都可以表示 “花費(fèi) ”，但它們的用法各有不同。 1) We’re trying _______ (save) the earth. 2) There used to_____ (be) clean and beautiful. 3) There are too many ______ for ________to catch (fish). 4) It’s bad for environment to use _________ (wood) chopsticks. Keys: to save be fish fishermen wooden XII. Think about The earth is badly polluted. Please make a poster and think of what we can do. XIII. Homework 1. Copy the new words and remember them. 2. Read the listening materials of 1b, 2a. Section A 2 (3a3c) I. Revision (1) Roleplay 2d. (2) Translate these sentences into English. ① 甚至是河底都滿是垃圾。 no longer 和 not…any longer 側(cè)重時(shí)間。 . 1) She not only plays well, but also writes music. 她不僅很會(huì)演奏，而且還會(huì)作曲。 3. Sharks are at the top of the food chain in the ocean’s ecosystem. 鯊魚(yú)位于海洋生物系統(tǒng)食物鏈的頂部。 常與 number 搭配的動(dòng)詞有 grow, fall等。 ③ 鯊魚(yú)處于海 洋食物鏈的頂部。 結(jié)構(gòu) : has/have + 過(guò)去分詞 標(biāo)志詞： already, yet, ever, never, since, for… . I haven’t finished my homework yet. 5. 情態(tài)動(dòng)詞 1) 情態(tài)動(dòng)詞本身有一定的詞義，表示說(shuō)話人的情緒、態(tài)度或語(yǔ)氣 ，但不能單獨(dú)作謂語(yǔ)，只能與其他動(dòng)詞構(gòu)成謂語(yǔ)。 ride your bike or walk to school or work。 Recycle books and paper. Turn off the shower while you are washing your hair. You can help reduce pollution by putting that soda can in a different bin. Don’t use paper napkins. (2)What can we do to help save the earth? Rank these items from the easiest (1) to the most difficult(5). (1a) ______stop riding in cars ______recycle books and paper ______turn off the lights when you leave a room ______turn off the shower while you are washing your hair ______don’ t use paper napkins (3) Compare your answers in 1a with your partner. III. Listening 1camp。 3. She lives in a house in the UK that she built herself out of rubbish. build/make ... out of 用 …… 建造 /制造 . He built a model ship out of wood. 他用木頭造了個(gè)模型船。 This kind of wine is made from wheat. 這種酒是用小麥制成的。 put to good use。 re表示以下三方面的意義： 1)表示 “回 ”或 “向后 ”的意思。 7. The theme park to show people the importance of environmental protection. importance 是 important 的名詞。第二，表示 “反動(dòng)作 ”。 not only。 7. Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be brought back to life with a little creativity (n. 創(chuàng)造力 ). bring back 恢復(fù)；使想起；歸還 not only ... but (also) ... 表示 “不但 …… 而且 ……” 。 The lid, turned upside down, served as a coffee table. 那個(gè)蓋子被翻過(guò)來(lái)當(dāng)作咖啡桌。 VI. Language points you often throw away things you don’t need anymore? 1) throw away 扔掉，丟棄浪費(fèi) (機(jī)會(huì)、優(yōu)勢(shì)或好處 ) . I never throw anything away. 我從來(lái)不扔任何東西。 2. …save electricity by turning off the lights when you leave a room. turning off 關(guān)掉 . Please turn the television off before you go to bed. 睡覺(jué)前請(qǐng)關(guān)掉電視。個(gè)別情態(tài)動(dòng)詞有過(guò)去式形式 , 可用來(lái)表達(dá)更加客氣、委婉的語(yǔ)氣。 be used to doing sth. 表示習(xí)慣于做某事。此句中的 finning 由動(dòng)詞化的 fin（割鯊魚(yú)鰭以獲取魚(yú)翅）的 ing形式轉(zhuǎn)化而成，指課文中所陳述的 “獵翅 ”這一行為 。 4. If their numbers drop too low, it will bring danger to all ocean life. 如果它們的數(shù)目降至過(guò)低，會(huì)給所有海洋生物帶來(lái)危險(xiǎn)。 not only 放在句首，后接句子時(shí)要用倒裝結(jié)構(gòu)。 (喝酒的量到了一定程度，不能再繼續(xù)下去了。 II. Lead in (1) Teacher tells students the earth is badly polluted. What should we do to save the earth? Let’s take action. For example: ① Turn off the lights when you leave a room。 . Tommy paid 20 yuan for his breakfast yesterday. 4) cost 多表示花費(fèi)金錢，主語(yǔ)通常是物，常用于 sth. cost(s) (sb.) some money. 句型 。 2. It’s good for health and it doesn’t cost anything! cost v. 花費(fèi)；使付出 指花費(fèi)金錢，主語(yǔ)通常是物。 rubbish 指 “沒(méi)用的東西 (被扔或?qū)⒁獊G棄的無(wú)用的東西 )”不 可回收。 （ 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(yǔ)態(tài)，情態(tài)動(dòng)詞和 used to 句型。 litter 指 “(室內(nèi)或公共場(chǎng)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。 cost 的過(guò)去式和過(guò)去分詞均為 cost。 . The new dress cost Linda 88 yuan. 根據(jù)句意用 take, spend, pay 或 cost 的適當(dāng)形式填空。 ② Take buses instead of driving cars ③ Recycle books and paper. (2) There are some animals are endangered. We should do something to protect the animals and the environment! III. Dis