新人教版九年级英语下册Unit-13-We’re-trying-to-save-the-earth!公开课ppt课件.ppt

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1、Period 1 1a-2d Words,Unit 13 Were trying to save the earth!,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,Look at our earth!,Endangered animals,Desertification,Natural disasters

2、,Pollution,The worlds problems,Serious pollution,We are harming our planet in so many ways.,伤害,air pollution,noise pollution,water pollution,the earth song by Michael Jackson!,Factories pour dangerous gases into the air.,Air pollution,Cars also pour dangerous gases into the air.,cars,smoking,Some pe

3、ople smoke in public places.,Noise pollution,building houses,loud music,mobile phones,planes,Water pollution,factories,rubbish,littering,ships,Help save the earth,We must think of better way to treat our planet in future.,You drink a can of cola.What do you do?,I throw away cans.,I recycle cans.,You

4、 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 recycl

5、e 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

6、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;tur

7、n off the lights when you leave a room;use paper or reusable bags;recycle books and paper;turn off the shower when you wash your hair;dont use napkins;rethink,reuse,recycle.,solutions,Here are some words related to different kinds of pollution.Write them in the box below.Then add more words.,1a,Nois

8、e pollution,Air pollution,Water pollution,Listen and complete the sentences.,really dirty,rubbish,fish,1b,litter,waste,government,close down,clean up,Role-play the conversation,The river was dirty.Even the bottom of the river was full of rubbish.,But it used to be so clean!,1c,Yes,but people are thr

9、owing litter into the river.,Everyone in this town should play a part in cleaning it up!,Practice,Make conversations using the pollution in 1a.,The river has always been the nicest river in this town.,Yes,it used to be so clean.,But I was there last weekend and the river was really dirty.,What cause

10、d the problem?,Factories are also putting waste into the river.,People are throwing litter into the river.,What should we do?,Yes,everyone in this town should play a part.,We should write to the government and ask them to close down the factories.,What else can we do?,Everyone should help to clean u

11、p the river.,1.Were trying to save the earth!我们正在竭尽全力拯救地球!try to do=try ones best to do 努力去做某事。Every student should try to study hard in order to study in a university.为了进入大学学习，每个学生都应该努力学 习。,Language points,2.Here are some words related to different kinds of pollution.be related to 与有关 I am notrelat

12、edtohim in any way.我和他无任何关系。,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.健康的饮食在帮助人们长寿方面起着非常大的作用。,play a part 在中扮演角色 He was invited to play a part in this TV play.他被邀请参加这个电视剧的演出。,4.Even the bottom of t

13、he river was full of rubbish.Yes,but people are throwing litter into the river.,litter和rubbish都可指“垃圾”，用作不可数名词。rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。,litter指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收。Throw the rubbish out.把垃圾扔出去。The room is full of rubbish.房间里堆满了垃圾。Pick up your litter after a picnic.野餐后将废弃物收拾好

14、。,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,2a,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

15、.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,Listen again and complete the sentences.,2b,Listen and answer the questions.,1.Who is the

16、interviewer talking to?2.What are they talking about?3.What other problems do they see?,Susan and Jason.,The environmental problems.,Theres too much rubbish and waste in the streets.,The air has become really polluted around here.Im getting very worried.,Yes,I used to be able to see stars in the sky

17、.,The problem is that,2c,Use the information in 2a and 2b to role-play conversations between Jason and Susan.,Read 2d and complete the chart.,take the bus,subway or ride a bike instead of driving.,bring a bag to go shopping.,use chopsticks or forks at home.,throw rubbish in the bins.,2d,Role-play th

18、e conversation,Jason and Susan,what are your ideas for solving these problems?,Yeah,or ride a bike.There are other advantages(优点)of bike riding.Its good for health and it doesnt cost(花费)anything!,Well,to cut down air pollution,we should take the bus or subway instead of driving.,Great ideas!What abo

19、ut waste pollution?,Me,too.Also,I never take wooden chopsticks or plastic(塑料)forks when I buy takeaway(外卖食品)food.I use the ones at home.,Mmm,I think simple things like bringing a bag to go shopping can help.I started doing that a year ago.,And remember to throw rubbish in the bins and keep public pl

20、aces clean and beautiful for everyone.,So together,our actions can make a difference and lead to a better future!,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 becomes 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

21、。(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,became,getting,turned,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

22、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.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 to2.The interesting book _ me 10 yuan.A.took B.paid C.spend D.cost,Choose

23、 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 better 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 Breasons Cresults Dideas,用方框中所

24、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,Make a poster!,The earth is badly polluted.Ple

25、ase make a poster and think of what we can do.,Save the earth!,Review the new words and expressions.Practice the conversation in 2d.,Period 2 3a-3c,Unit 13 Were trying to save the earth.,Revision,Jason and Susan,what are your ideas for solving these problems?,Role-play 2d.,Well,to cut down air pollu

26、tion,we should take the bus or subway instead of driving.,Yeah,or ride a bike.There are other advantages of bike riding.Its good for health and it doesnt cost anything.,Great ideas!What about waste pollution?,Mmm,I think simple things like bringing a bag to go shopping can help.I started doing that

27、a year ago.,Me,too.Also,I never take wooden chopsticks or plastic forks when I buy takeaway food.I use the ones at home.,And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone.,So together,our actions can make a difference and lead to a better future!,Trans

28、late these sentences into English.,1.甚至是河底都满是垃圾。2.这个镇上的每个人都应该参与清扫。,Even the bottom of the river was full of rubbish.,Everyone in this town should play a part in cleaning it up.,3.骑自行车有其它的优点。4.我买外卖食品从来不拿木筷子和塑料叉 子。,There are other advantages of bike riding.,I never take wooden chopsticks or plasticfor

29、ks when I buy takeaway food.,The earth is badly polluted.What should we do to save the earth?,Warming up,Lets take action(采取行动),Turn off the lights when you leave a room.,Recycle books and paper.,Take buses instead of driving cars.,There are some animals are endangered.We should do something to prot

30、ect the animals and the environment!,Save the earth!Save the animals!,The zoos provide homes for many endangered animals.,1.Have you ever seen a shark（鲨鱼）?2.What do you know about sharks?,Discuss with your partner:,Read the passage about sharks and complete the fact sheet below.,3a,Many have heard o

31、f 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 soup?When people catch sharks,they cut off theirfins and throw the shark back into the ocean.,Without a fin,a shark ca

32、n 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 th

33、e 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 teac

34、hing 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!,Sharks are endangered,read the passage and judge the sentences.,Read the

35、first paragraph,1.Sharks fin（鱼鳍）soup is famous and expensive all around the world.,2.We have to kill a whole shark to get a bowl of sharks fin soup.,Read the second paragraph,1.People cut off sharks fins and throw the sharks back into the ocean.,2.Sharks are in the bottom of the food chain in the oc

36、eans ecosystem.,n.生态系统,食物链,Read the third paragraph,1.Wild Aid and the WWF are environmental protection groups in China.,2.Sharks fins are good for health.,southern China,70 million,over 90 percent,WildAid and the WWF,Lets do this to review the text!,Some people like to eat sharks fin soup,especiall

37、y in _China.But getting the sharks 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

38、 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 top,Lets learn some,Language points,1.A shark can no longer swim and slowly dies.鲨鱼不能再游泳然后慢慢死掉。,no longer意思是“不再”Im no longer a student.我不再是个学生了。,有两个短语和no lo

39、nger同义，即notany longer和notany more，但他们侧重的方面不同。,Language points,no longer和notany longer侧重时间。e.g.He no longer lives here.=He doesnt live here any longer.他不在这儿居住了。(一个时间以前他住 在这儿，过了这个时间，他就离开了。)notany more侧重程度和数量e.g.You can drink no more.=You cant drink any more.你不能再喝了。(喝酒的量到了一定程 度，不能再继续下去了。),2.This method

40、 is not only cruel,but also harmful to the environment.这种方法不但残忍而且对环境有害。,not onlybut also用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅而且”;其中的also有时可以省略。,e.g.She not only plays well,but also writes music.她不但很会演奏，而且还会作曲。Not only men but also women were chosen.不仅仅是男的，女的也有被选中的。,若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g.Not only yo

41、u but also he has to leave.不只是你，他也得离开。,not only放在句首，后接句子时要用倒装结构。e.g.Not only had the poor man been fined,but also he had been sent to prison.这个可怜的人不仅被罚款，而且还被 送进了监狱。,be harmful to 对有害e.g.Smoking is harmful to the health.吸烟有害健康。Playing computer games much is harmful to students.电脑游戏玩太多对学生有害。,3.Sharks

42、are at the top of the food chain in the oceans ecosystem.鲨鱼位于海洋生物系统食物链的顶部。,at the top of 在最高地位;用最高最大的(速度,声音等)e.g.I looked at the top of his head,his hair shiny and parted smoothly.我看他的头顶,头发闪亮且平滑的分开。,He shouted at the top of his voice in order that he might be heard.他尽力大声叫喊,以便别人能听见。,4.If their number

43、s drop too low,it will bring danger to all ocean life.如果它们的数目降至过低，会给所有 海洋生物带来危险。此句复数形式的numbers表达全海洋中鲨 鱼的总量。当表示数值的高或低时，number要用high或low修饰。,e.g.In that country,the number of children going to school is higher in cities than in towns and village.在那个国家，城市儿童入学人数比乡镇 及农村要高。常与number搭配的动词有grow,fall等。e.g.The

44、number of families that own cars has been growing quickly recently.近来拥有轿车的家庭数量增长很快。,5.Environment protection groups around the world,such as WildAid and the WWF,are teaching the public about“finning”.世界各地的环境保护组织，如野生救援协 会和世界自然基金会，都在教育公众有关“猎翅”的行为。1)句中fin本为名词，指“鱼鳍”。此句中的 finning由动词化的fin（割鲨鱼鳍以获取 鱼翅）的-ing

45、形式转化而成，指课文中所 陈述的“猎翅”这一行为。,2)WildAid和WWF组织 WildAid（美国野生救援协会）是保护野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物；WWF（世界自然基金会）英文全称为World Wide Fund for Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。,1.Many people do not realize they are killing a whole shark _they enjoy a bowl of sharks fin soup.2.Shark

46、s 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.,so,when,3b,Many think that sharks are too strong to be endangered,_ they are wrong._there are no scientific studies to support th

47、is,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,用方框中词的适当形式完成下面的句子。I think its _ to make such a young boy work all day.(2)The poor fisherman cant _ his childrens education.(3)I think

48、 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.,cruel,afford,law,harmful,method,II.单项选择。1.Are you going to _ any of the events?Yes.Maybe long jump and high jump.A.take part inB.joinC.attend D.join

49、in 2.I cant afford _ him an expensive birthday present.A.to buyB.buying C.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 pl

50、ayground.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.根据汉语提示完成句子。1.我们必须采取行动来阻止他们。We must _ _ to stop them.2.我从没听说过这个人。I have never _ _ such a man.3.我们乐意尽力帮你摆脱困境。We are glad to do what we can do _ _ _.4.到目前