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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit,13,We are trying to save the earth,.,Section A 1a-2b,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,serious pollution,We are,harming,our planet in so many ways,.,伤害,air pollution,noise,pollution,water pollution,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,blue sky,.,We cant breathe,the fresh air,.,Do you know why?,F,actories,produce too much dangerous,smoke,.,The,traffic,produces too many,fumes,(,烟雾）,.,Some people,smoke,in public places.,Dad, whats the,acid rain,?,Natural resources are disappearing,at a dangerous rate.,以危险的速度,Group One,Group Two,Group Three,desert,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.,Yo,u 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 . .,solutions,基础预习,写出下面单词的意思,litter_,bottom_,fisherman_,ugly_,cost_,plastic_,coal_,advantage_,wooden_,把下面的短语与汉语意思连起来。,make a diffenence,cut down,lead to,be full of,play a part in,导致,起作用,减少,参与,充满,Here are some words related to different kinds of,pollution. Write them in the box below. Then add,more words.,1a,loud music,cars,rubbish,planes,littering,ships,factories,smoking,bulding houses,mobile phone,s,noise,pullotion,air pollution,water pollution,cars, factories, smoking, building houses,Loud music, planes, building houses, mobile phones,rubbish, littering, ships, factories,Listen and,complete the sentences,.,1b,what was the problem?,The river was _. even the bottom of the river was full of _. there were no more _ for,fishmen,to catch.,really dirty,rubbish,fish,what cause,d 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.,litter,waste,government,close down,clean up,Watch and read,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,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,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 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.,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.,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 cost anything!,2,d,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 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,与,become,(1),become,多指身份，职位等的变化，,它强调变化过程已经完成，后面可以接名词,或者形容词。,He become,s a teacher.,(2),get,多用于口语，表示一种变化过程，,强调的是“渐渐变化”后常接形容词的比较级形式。,Language Points,In winter the days get shorter.,冬天白天渐渐变短。,(3),turn,指的是在颜色和性质等方面与以前的完全不同，强调变化的结果。,leaves turned brown in the mountains.,山里的树叶已经变成了棕色。,：,Her mother _ angry when she heard the news.,Its _ darker and darker outside.,The milk has _bad.,练习,bec,ame,get,ting,turn,ed,cut down,意为,减少,； 是“动词,+,副词”结构的短语，后面所带的宾语为名词时，宾语可以位于,down,的前面或后面；为代词时只能位于,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,cut off,切断；切除,cut into,把,.,切成,.,cut up,切碎,cut in,插队,花费,主语,表示内容,spend,人,宾语可以是钱，精力，时间等。,cost,物或事,后接,life,，,money,，,health,，,time,等，侧重与花费的代价,take,事或人,说明事情完成花费了,.,辨析：,spend, cost, take, pay,花费,主语,表示内容,pay,人,支付,作为及物动词，可以是,pay sb,或,pay some money,；作为不及物动词，形式为,pay for,。,for,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 pay,2. I _ 300,yuan,for the bike.,A took B spend C cost D paid,用方框中所给词的适当形式填空。,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 _(,花费,) of living in big cities is very,high.,5. He keeps a rabbit in a big _(,木制的,) box.,cost wooden, coal , bottom, litter,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.,cost,Choose the best answer.,3.,We must do something useful to _ pollution.,A. c,ut off,B.,cut up,C. c,ut down,D. c,ut in,4.,Smoking can _ lung cancer. youd bettter give it up.,A,work on,B,lead to,C,take away,D,put out,5.,What are the _ of bike riding?,- It can help cut down air pollution.,A,advantage,B,reasons,C,results,D,ideas,1. 多一个人少一个人无所谓。,O,ne person wouldn,t _ _ _,_,_.,2. 这个木箱时装满了书。,T,he _,_,_ box _ _ _ books.,3. 不健康的饮食对这种疾病的传播起一定的作用。,U,nhealthy foods _ _ _ _ the spread of the disease.,4. 这条小路通向公园。,T,he path _ _ the park.,5. 我错拿了你的包。,I,took your bag _,_,_ _ mine by mistake.,wooden is full of,make a difference,lead to,paly,a part of,instead of,