Unit 13We are trying to save the earth. Language GoalTalk about pollution and envirnmental protectionTo talk about air pollution, water pollution and sound pollution.To think about ways of protecting the environment.To learn the new words: advantage, scientificserious pollutionWe are harming our planet in so many ways.傷害傷害air pollutionsoil pollutionwater pollutionthe earth song by Michael Jackson !Factories pour dangerous gases into the air.Cars also pour dangerous gases into the air.air pollution!The weather is always foggy. We cant see the blue 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)的速度以危險(xiǎn)的速度Group One Group TwoGroup Three desert滅絕滅絕extinctHelp 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.STARTYou 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 recycle 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 for 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 sides.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 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 . .industryharmfulcostwoodenplasticaffort n. 工業(yè)工業(yè)adj. 有害的有害的v. 花費(fèi)花費(fèi)adj. 木制的木制的adj. 塑料的塑料的v. 支付的起支付的起Words and expressionsmake a differencetake part inturn offpay forcut downlead to 起作用；有影響起作用；有影響參加參加關(guān)掉關(guān)掉付費(fèi)；付出代價(jià)付費(fèi)；付出代價(jià)減少減少導(dǎo)致導(dǎo)致Words and expressionsvWere trying to save the earth. 我們在努力拯救地球。我們在努力拯救地球。v The rive used to be so clean. 這河流過去是如此的清澈。這河流過去是如此的清澈。v The air is badly polluted. 空氣被嚴(yán)重污染?？諝獗粐?yán)重污染。v The method is not only cruel, but also harmful to the environment. 這種方法不僅殘酷，而且對環(huán)境也有害。這種方法不僅殘酷，而且對環(huán)境也有害?；A(chǔ)預(yù)習(xí)基礎(chǔ)預(yù)習(xí)寫出下面單詞的意思寫出下面單詞的意思litter_ bottom_fisherman_ugly_cost_plastic_coal_advantage_wooden_把下面的短語與漢語意思連起來。把下面的短語與漢語意思連起來。make a diffenencecut downlead to be full of play a part in 導(dǎo)致導(dǎo)致起作用起作用減少減少參與參與充滿充滿 Here are some words related to different kinds of pollution. Write them in the box below. Then add more words.1a1aloud musiccarsrubbishplaneslitteringshipsfactoriessmokingbulding housesmobile phonesnoise pullotionair pollutionwater pollutioncars, factories, smoking, building houses(burning, power plants, nuclear waste disposal)Loud music, planes, building houses, mobile phones(machines,crowds, vihicles)rubbish, littering, ships, factories(sewage, industrial waste, pesticides)Listen and complete the sentences.1b1bwhat was the problem?The river was _. even the bottom of the river was full of _. there were no more _ for fishmen to catch.really dirtyrubbishfishwhat 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.litterwastegovernmentclose downclean upMark: 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.1c1c2a2a Listen to the interview. Circle the kinds of pollution that Jason andSusan talk about. A. land pollution B. air pollution C. noise pollution D. water pollution1. 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 away every day.4. People are also littering in_ like parks. Th is turns beautiful parks into ugly places.more carpolluteare throwing awaypublic places2b2b Listen again and complete the sentences. Jason: The air has become really polluted around here. Im really getting worried.Susan: Yes, I used to be able to see stars in the sky.Jason: The problem is that . Use the information in 2a and 2b to role-play conversations between Jason and Susan.2c2cInterviewer: 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 cost anything!2 2d dRole-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 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!辨析：辨析： turn, get與與become(1) become 多指身份，職位等的變化，多指身份，職位等的變化，它強(qiáng)調(diào)變化過程已經(jīng)完成，后面可以接名詞它強(qiáng)調(diào)變化過程已經(jīng)完成，后面可以接名詞或者形容詞?；蛘咝稳菰~。 He becomes a teacher.(2) get多用于口語，表示一種變化過程，多用于口語，表示一種變化過程，強(qiáng)調(diào)的是強(qiáng)調(diào)的是“漸漸變化漸漸變化”后常接形容詞的比較級(jí)形式。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。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。的完全不同，強(qiáng)調(diào)變化的結(jié)果。 leaves turned brown in the mountains. 山里的樹葉已經(jīng)變成了棕色。山里的樹葉已經(jīng)變成了棕色。 ：uHer mother _ angry when she heard the news.uIts _ darker and darker outside.uThe milk has _bad.becamegettingturned cut down, 意為意為減少減少； 是是“動(dòng)詞動(dòng)詞+副詞副詞”結(jié)結(jié)構(gòu)的短語，后面所帶的賓語為名詞時(shí)，賓語構(gòu)的短語，后面所帶的賓語為名詞時(shí)，賓語可以位于可以位于down的前面或后面；為代詞時(shí)只的前面或后面；為代詞時(shí)只能位于能位于down前面。前面。 Youd better cut the article down to about 2000 words. cut 后接后接off, into,up, in 的不同：的不同：cut off切斷；切除切斷；切除cut into把把.切成切成.cut up切碎切碎cut in 插隊(duì)插隊(duì)花費(fèi)花費(fèi)主語主語表示內(nèi)容表示內(nèi)容spend人人賓語可以是錢，精賓語可以是錢，精力，時(shí)間等。力，時(shí)間等。cost物或事物或事后接后接life，money，health，time等，等，側(cè)重與花費(fèi)的代價(jià)側(cè)重與花費(fèi)的代價(jià)take事或人事或人說明事情完成花費(fèi)說明事情完成花費(fèi)了了.辨析：辨析：spend, cost, take, pay花費(fèi)花費(fèi)主語主語表示內(nèi)容表示內(nèi)容pay人人支付支付 作為及物動(dòng)作為及物動(dòng)詞，可以是詞，可以是 pay sb 或或pay some money；作為不及物動(dòng)詞，作為不及物動(dòng)詞，形式為形式為pay for。for表支付的原因。表支付的原因。1. Do you take exercise everyday? Yes, I always _ thirty minutes after supper. A spend B cost C take D pay2. 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。用方框中所給詞的適當(dāng)形式填空。1. Dont throw _(垃圾垃圾) everywhere.2. In winter, many people burn _(煤煤) to keep warm.3. The police found a body at the _(底部底部) of the lake.4. The _(花費(fèi)花費(fèi)) of living in big cities is very high.5. He keeps a rabbit in a big _(木制的木制的) box.cost wooden, coal , bottom, littercost woodencoalbottomlitter1. He _ go out with his parents, but nowhe _ 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 to2. The interesting book _ me 10 yuan. A. took B. paid C. spend D. costChoose the best answer.3. We must do something useful to _ pollution. A. cut off B. cut up C. cut down D. cut in4. Smoking can _ lung cancer. youd bettter give it up. Awork on Blead to Ctake away Dput out5. What are the _ of bike riding? - It can help cut down air pollution. Aadvantage Breasons Cresults Dideas1. 多一個(gè)人少一個(gè)人無所謂。多一個(gè)人少一個(gè)人無所謂。 One person wouldnt _ _ _. 2. 這個(gè)木箱時(shí)裝滿了書。這個(gè)木箱時(shí)裝滿了書。The _ box _ _ _ books. 3. 不健康的飲食對這種疾病的傳播起一定的作用。不健康的飲食對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。這條小路通向公園。 The path _ _ the park. 5. 我錯(cuò)拿了你的包。我錯(cuò)拿了你的包。 I took your bag _ _ mine by mistake. wooden is full ofmake a differencelead to paly a part of instead of Read the passage about sharks and complete the fact sheet below.3a3aMany have heard of sharks fin soup. Thisfamous and expensive dish is especiallypopular in southern China. But do you realizethat youre killing a whole shark each timeyou enjoy a bowl of sharks fin soup?When people catch sharks, they cut off theirfins 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 numbers 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 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 fins are good for health, so why eat them? Help save the sharks!Where shark fin soup is popularNumber of sharks caught and traded every yearhow much the numbers of some kinds of sharks have fallen in the last 20-30 yearsTwo environmental groups against finning70 millionover 90 percentWildAid and the WWFLets 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 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 harmful topLets learn somelanguage pointsharmful 形容詞，意為形容詞，意為“有害的有害的”。常構(gòu)成短語。常構(gòu)成短語be harmful to “對對有害的有害的”。Staying up often is harmful to your health. 經(jīng)常經(jīng)常熬夜對你的健康有害。熬夜對你的健康有害。【拓展拓展】harm 名詞，意為名詞，意為“害處害處”。常用構(gòu)成短語。常用構(gòu)成短語do harm to “對對有害有害”，相當(dāng)于，相當(dāng)于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸煙吸煙過多對他的健康有害。過多對他的健康有害。改為同義句。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：辨析：join, join in 和和take part in tojoin加入組織，團(tuán)體，黨派等，有加入組織，團(tuán)體，黨派等，有作為其中的一個(gè)成員的含義作為其中的一個(gè)成員的含義;后面也可以加表示人的名詞，后面也可以加表示人的名詞，表示和某人一起參加某活動(dòng)表示和某人一起參加某活動(dòng)join in 加入一種具體活動(dòng)。加入一種具體活動(dòng)。take aprt in指參加會(huì)議或群眾性活動(dòng)等，指參加會(huì)議或群眾性活動(dòng)等，著重說明句子主語參加該項(xiàng)活著重說明句子主語參加該項(xiàng)活動(dòng)并在活動(dòng)中發(fā)揮作用。動(dòng)并在活動(dòng)中發(fā)揮作用。Will you join us in the discussion? 你參加我們的討論嗎？你參加我們的討論嗎？ She joined the Young Pioneers. 她加入了少先隊(duì)。她加入了少先隊(duì)。 Why didnt you join in the talk last night? 昨晚你為什么沒參加座談？昨晚你為什么沒參加座談？Did you take part in the sports meet? 你參加運(yùn)動(dòng)會(huì)了嗎？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. attend B. join C. join inD. take part in afford是動(dòng)詞，是動(dòng)詞，意為意為“買得起買得起,擔(dān)負(fù)得起擔(dān)負(fù)得起”，通通常與常與can, could, be able to連用連用,多多用于否定句中。用于否定句中。They couldnt afford $50 for a ticket. 他們拿不他們拿不出出50美元買一張票。美元買一張票。 afford后面常跟帶后面常跟帶to的動(dòng)詞不定式。的動(dòng)詞不定式。We cant afford to go abroad this summer. 今今年夏天我們沒有足夠的錢出國。年夏天我們沒有足夠的錢出國。例句：例句：Miss Taylor never wastes money on anything too expensive, even though she can _to. She has donated much of the money she saved to charities. A. affordB. allow C. remind D. pay1. 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 the passage again and fill in the blanks with the words in the box. sowhen3b3bso althoughif but when 3.Many think that sharks are too strong to be endangered, _ they are wrong. 4._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. butAlthoughIf 練習(xí)題練習(xí)題I. 用方框中詞的適當(dāng)形式完成下面的句子。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 protect environment. (4) Eating too much junk food is _ your health. (5) He can use different _ to work out the problem. method, cruel, harmful, afford, lawcruelaffordlawharmfulmethodII. 單項(xiàng)選擇。單項(xiàng)選擇。1. Are you going to _ any of the events? Yes. Maybe long jump and high jump. A. take part inB. joinC. attend D. join in 2. I cant afford _ him an expensive birthday present. A. to buyB. buyingC. for buyingD. buy 3. Remember to _ the lights when you leave the room. OK. I will. A. turn onB. turn downC. turn upD. turn off 4. The girl always has some money to _ snacks. A. spendB. pay forC. takeD. cost 5. Look! _ boys are playing on the playground. Yes. _ them is about 200. A. The number of; A number of B. The number of; The number of C. A number of; the number of D. A number of; A number of III. 根據(jù)漢語提示完成句子。根據(jù)漢語提示完成句子。1. 我們必須采取行動(dòng)來阻止他們。我們必須采取行動(dòng)來阻止他們。 We must _ _ to stop them. 2. 我從沒聽說過這個(gè)人。我從沒聽說過這個(gè)人。 I have never _ _ such a man. 3. 我們樂意盡力幫你擺脫困境。我們樂意盡力幫你擺脫困境。 We are glad to do what we can do _ _ _.4. 到目前為止，我已經(jīng)交了二十個(gè)朋友。到目前為止，我已經(jīng)交了二十個(gè)朋友。 _ _, I have made twenty friends. 5. 實(shí)際上，她從沒去過那兒。實(shí)際上，她從沒去過那兒。 _ _, she has never been there. In fact take actionheard ofto help outSo farHomework 1. Review the new words and expressions.2.Practice the conversation in 2d.