1、Unit 13 We are trying to save the earth.,Section A 1a-3b,Language Goal,Talk about pollution and envirnmental protection,Objectives,To talk about air pollution, water pollution and sound pollution. To think about ways of protecting the environment. To learn the new words: advantage, scientific,seriou

2、s pollution,We are harming our planet in so many ways.,傷害,air pollution,soil pollution,water pollution,the earth song by Michael Jackson !,Factories pour dangerous gases into the air.,Cars also pour dangerous gases into the air.,tail gas,air pollution!,The weather is always foggy. We cant see the bl

3、ue sky. We cant breathe the fresh air. Do you know why?,Factories produce too much dangerous smoke. The traffic produces too many fumes. Some people smoke in public places.,Dad, whats the acid rain?,Natural resources are disappearing at a dangerous rate.,以危險(xiǎn)的速度,Group One,Group Two,Group Three,desert

4、,滅絕,extinct,Help save the earth,We must think of better way to treat our planet in future.,What do you usually do ? Are you a friend of the Earth? Take this quiz.,START,You drink a can of cola. What do you do?,I throw away cans.,I recycle cans.,You throw away the cans. Thats bad for the Earth.,You r

5、ecycle the cans. Thats good for the Earth.,There are a lot of old newspapers at your home. What do you do?,I throw the old newspapers away.,I recycle the old newspapers.,You throw old newspapers away. You waste paper. Thats bad for the Earth.,You recycle old newspapers. You save paper. Thats good fo

6、r the Earth.,You go shopping. What do you do?,I use a lot of new plastic bags.,I use my own bag.,You use a lot of new plastic bags. Thats bad for the Earth.,You use your own bag. Thats good for the Earth.,When you write on a piece of paper, what do you do?,I write on one side only.,I write on both s

7、ides.,You use paper on one side only. Thats bad for the Earth.,You use paper on both sides. Thats good for the Earth.,close down the factories; help to clean up the river; take the bus or subway; ride a bike; bring a bag to go shopping,throw rubbish in the cans; turn off the lights when you leave a

8、room; use paper or resusable bags; recycle books and paper; turn off the shower when you wash your hair; dont use napkins; rethink,reuse, recycle . .,solutions,industry harmful cost wooden plastic affort,n. 工業(yè) adj. 有害的 v. 花費(fèi) adj. 木制的 adj. 塑料的 v. 支付的起,Words and expressions,make a difference take part

9、 in turn off pay for cut down lead to,起作用；有影響 參加 關(guān)掉 付費(fèi)；付出代價(jià) 減少 導(dǎo)致,Words and expressions,Were trying to save the earth. 我們?cè)谂φ鹊厍颉?The rive used to be so clean. 這河流過(guò)去是如此的清澈。 The air is badly polluted. 空氣被嚴(yán)重污染。 The method is not only cruel, but also harmful to the environment. 這種方法不僅殘酷，而且對(duì)環(huán)境也有害。,Sente

10、nces,基礎(chǔ)預(yù)習(xí) 寫(xiě)出下面單詞的意思 litter_ bottom_ fisherman_ ugly_ cost_ plastic_ coal_ advantage_ wooden_,把下面的短語(yǔ)與漢語(yǔ)意思連起來(lái)。 make a diffenence cut down lead to be full of play a part in,導(dǎo)致 起作用 減少 參與 充滿(mǎn),Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.,1a,

11、noise pullotion,air pollution,water pollution,Listen and complete the sentences.,1b,really dirty,rubbish,fish,litter,waste,government,close down,clean up,Watch and read,Role-play the conversation. Then make your own conversations about the kinds of pollution in 1a.,1c,2a,Listen to the interview. Cir

12、cle the kinds of pollution that Jason and Susan talk about.,A. land pollution B. air pollution C. noise pollution D. water pollution,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

13、 rubbish and waste. People _things away every day. 4. People are also littering in_ like parks. Th is turns beautiful parks into ugly places.,more car,pollute,are throwing away,public places,2b,Listen again and complete the sentences.,Use the information in 2a and 2b to role-play conversations betwe

14、en Jason and Susan.,2c,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. Other advantages of bike riding are that its good for health and it doesnt co

15、st anything!,2d,Role-play the conversation.,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

16、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. Interviewer: So together, our actions can make a difference and lead to a better future!,Watch and read,辨析： turn, get與become (1) become 多指身份，職位等的變化， 它強(qiáng)調(diào)變化過(guò)程已經(jīng)完成，后面可

17、以接名詞 或者形容詞。 He becomes a teacher. (2) get多用于口語(yǔ)，表示一種變化過(guò)程， 強(qiáng)調(diào)的是“漸漸變化”后常接形容詞的比較級(jí)形式。,Language Points,In winter the days get shorter. 冬天白天漸漸變短。 (3) turn 指的是在顏色和性質(zhì)等方面與以前的完全不同，強(qiáng)調(diào)變化的結(jié)果。 leaves turned brown in the mountains. 山里的樹(shù)葉已經(jīng)變成了棕色。 ： Her mother _ angry when she heard the news. Its _ darker and darker

18、outside. The milk has _bad.,練習(xí),became,getting,turned,cut down, 意為減少； 是“動(dòng)詞+副詞”結(jié)構(gòu)的短語(yǔ)，后面所帶的賓語(yǔ)為名詞時(shí)，賓語(yǔ)可以位于down的前面或后面；為代詞時(shí)只能位于down前面。 Youd better cut the article down to about 2000 words. cut 后接off, into,up, in 的不同：,拓展,辨析：spend, cost, take, pay,1. Do you take exercise everyday? Yes, I always _ thirty minu

19、tes after supper. A spend B cost C take D pay 2. I _ 300 yuan for the bike. A took B spend C cost D paid,用方框中所給詞的適當(dāng)形式填空。 1. Dont throw _(垃圾) everywhere. 2. In winter, many people burn _(煤) to keep warm. 3. The police found a body at the _(底部) of the lake. 4. The _(花費(fèi)) of living in big cities is very

20、 high. 5. He keeps a rabbit in a big _(木制的) box.,cost,wooden,coal,bottom,litter,1. He _ go out with his parents, but now he _ stay at home alone. A. use to; is used to B. is used to; used to C.use to; used to D. is used to; is used to 2. The interesting book _ me 10 yuan. A. took B. paid C. spend D.

21、 cost,Choose the best answer.,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. youd bettter give it up. Awork on Blead to Ctake away Dput out,5. What are the _ of bike riding? - It can help cut down air pollution. Aadvantage Brea

22、sons Cresults Dideas,1. 多一個(gè)人少一個(gè)人無(wú)所謂。 One person wouldnt _ _ _. 2. 這個(gè)木箱時(shí)裝滿(mǎn)了書(shū)。 The _ box _ _ _ books. 3. 不健康的飲食對(duì)這種疾病的傳播起一定的作用。 Unhealthy foods _ _ _ _ the spread of the disease. 4. 這條小路通向公園。 The path _ _ the park. 5. 我錯(cuò)拿了你的包。 I took your bag _ _ mine by mistake.,wooden is full of,make a difference,lea

23、d to,paly a part of,instead of,Read the passage about sharks and complete the fact sheet below.,3a,Many have heard of sharks fin soup. This famous and expensive dish is especially popular in southern China. But do you realize that youre killing a whole shark each time you enjoy a bowl of sharks fin

24、soup? When people catch sharks, they cut off their fins and throw the shark back into the ocean.,Without a fin, a shark can no longer swim and slowly dies. This method is not only cruel, but also harmful to the environment. Sharks are at the top of the food chain in the oceans ecosystem. If their nu

25、mbers drop too low, it will bring danger to all ocean life. Many believe that sharks can never be endangered because they are the strongest in their food chain.,But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by

26、 over 90 percent in the last 20 to 30 years.,Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”. They have even asked governments to develop laws to stop the sale of sharks fins. So far, no scientific studies have shown that sharks

27、fins are good for health, so why eat them? Help save the sharks!,Lets do this to review the text !,Some people like to eat sharks fin soup, especially in _China. But getting the s harks fin is very _. When people catch sharks, they _ _their fins and throw the sharks into the ocean. The shark slowly

28、dies because it cant _ without the fin. And it is also _ to environment. Sharks are at the _ of the food chain. If the number of sharks drops too low, it will break the balance of nuture. Please say no to eating the shark fin soup, and take action to save the sharks!,southern cruel cut off swim harm

29、ful top,Lets learn some,language points,harmful 形容詞，意為“有害的”。常構(gòu)成短語(yǔ) be harmful to “對(duì)有害的”。 Staying up often is harmful to your health. 經(jīng)常熬夜對(duì)你的健康有害。 【拓展】 harm 名詞，意為“害處”。常用構(gòu)成短語(yǔ) do harm to “對(duì)有害”，相當(dāng)于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸煙過(guò)多對(duì)他

30、的健康有害。,改為同義句。 Reading in the sun does harm to our eyes. Reading in the sun _ _ _ our eyes.,is harmful to,辨析：join, join in 和take part in,to,Will you join us in the discussion? 你參加我們的討論嗎？ She joined the Young Pioneers. 她加入了少先隊(duì)。 Why didnt you join in the talk last night? 昨晚你為什么沒(méi)參加座談？ Did you take part

31、in the sports meet? 你參加運(yùn)動(dòng)會(huì)了嗎？,1. Have you _ a club? Yes, Im in a swimming club and I often _ the swimming training. A. joined; take part in B. joined; join C. taken part in; join D. taken part in; join in 2. Were going for a picnic. Would you like to_ us? Why not? Lets go! A. attendB. join C. join i

32、nD. take part in, afford是動(dòng)詞，意為“買(mǎi)得起,擔(dān)負(fù)得起”，通常與can, could, be able to連用,多用于否定句中。 They couldnt afford $50 for a ticket. 他們拿不出50美元買(mǎi)一張票。 afford后面常跟帶to的動(dòng)詞不定式。 We cant afford to go abroad this summer. 今年夏天我們沒(méi)有足夠的錢(qián)出國(guó)。 例句：Miss Taylor never wastes money on anything too expensive, even though she can _to. She h

33、as donated much of the money she saved to charities. A. affordB. allow C. remind D. pay,1. Many people do not realize they are killing a whole shark _they enjoy a bowl of sharks fin soup. 2. Sharks are at the top of the food chain, _ if their numbersdrop, the oceans ecosystem will be in danger.,Read

34、 the passage again and fill in the blanks with the words in the box.,so,when,3b,Many think that sharks are too strong to be endangered, _ they are wrong. _there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins.,but,Although,If,練習(xí)題,用方框中詞的適當(dāng)形式完成下面的句子。 (1) I think its _ to make such a young boy work all day. (2)The poor fisherman cant _ his childrens education. (3) I think the government must develop _ to p