人教版九年级全册英语Unit 13 教案.pdf

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1、人教版九年级全册英语Unit 1 3教案Unit 13 Were trying to save the earth!教学目标：话题 Topic：环境保护(Protecting the environment)功能 Functions：能谈论环境污染和环境保护问题(Talk about pollution and environmentalprotection)Were trying to save the earth.The river used to be so clean.The air is badly polluted.To cut down air pollution,we shou

2、ld take the bus or subway instead of driving.语法复习：Review of key structures能正确区分和使用以下语法结构：现在进行时、used to、被动语态、现在完成时、情态动词等。We are trying to save the earth.The river used to be so clean.It was considered the nicest river in town.We should help save the sharks.词汇和常用表达 Words&expressions1.能正确使用下列词汇(Curricu

3、lum words)bottom,fisherman,coal,advantage,industry,law,gate,bottle,president,work,metal,ugly,wooden,plastic,cruel,harmful,scientific,litter,cost,afford,recycle2.能正确使用下列常用表达(Useful expressions)be harmful to,at the top of,the food chain,take part in,turn off,pay for,take action,throw away,put sth.to g

4、ood use,pull.down,upside down,bring back3.能认读下列词汇(Non-curriculum words)takeaway,bin,shark,fin,chain,ecosystem,reusable,transportation,napkin,inspiration,iron,creativity学习策略Strategies1 .借助文章标题和插图对阅读篇章内容进行合理的预测2.能在阅读中借助上下文语境和构词特征猜测部分词汇的含义文化知识Culture了解环境污染情况问题和如何保护环境Section A X (la-2d)Learning objectiv

5、es:1.To learn and talk about air pollution,waste pollution and ways to solve theproblems.2.To learn to use the sentence patterns.used to.but now.should do sth.3.To master key words and phrases:litter,bottom,fisherman,coal,ugly,advantage,cost,wooden,plastic,make adifference,lead to,instead ofL Warmin

6、g upShow the pictures to make some comparison and tell students the earth is pollutednow.For example:(1)The factories that burn coal pollute the air with a lot of black smoke.(2)Factories put waste into the river.(3)People should throw away litter in the bin.(4)There are more cars on the road.Learn

7、some new words.IL Work on laHere are some words related to different kinds of pollution.Write them in the box below.Then add more words.loud musiccarsrubbish planeslittering shipsfactoriessmokingbuilding housesmobile phonesnoise pollutionair pollutionwater pollutionKeys:noise pollution:loud music,pl

8、anes,building houses,mobile phones,(machinesCrowds,vehicles)air pollution:cars,factories,smoking,building houses,water pollution,(burning,power plants,nuclear waste disposal)water pollution:rubbish,littering,ships,factories,(sewage,industrial waste,pesticides)III.Listening1.Work on lb.Listen and com

9、plete the sentences.Keys:really dirty,rubbish,fishlitter,wastegovernment,close down,clean upWhat was the problem?The river was _.Even thebottom(底 部)of the river was full of_,There were no more _ forfishermen(渔民)to catch.What caused the problem?People are throwing _ into the river.Factories are putti

10、ng_ into the river.How should the problem be solved?We should write to the_and askthem to_the factories.Everyoneshould help to_the river.2.Listen again and answer the following questions.1)What does Tony want to do later this afternoon?He wants to go swimming with Mark in the river later this aftern

11、oon.2)How was the river in the past?It used to be so clean.It has been the nicest river in this town.3.原文展示used to do sth.“过去常常”表示过去习惯性的动作但如今已不存在。play a part in doing s th.”参与做某事；在做某事上起作用IV.Practice1.Role-play the conversation in 1c.Mark:The river was dirty.Even the bottom of the river was full of r

12、ubbish.Tony:But it used to be so clean!Mark:Yes,but people are throwing litter into the river.Tony:Everyone in this town should play a part in cleaning it up!2.Make conversations about kinds of pollution in la.3.Work in groups.Each group choose a topic in 2a.Say the words or phrases related tothe to

13、pic one by one.V.Listening1.Work on 2a.Listen to the interview.Circle the kinds of pollution that Jason and Susantalk about.A.land pollution B.air pollutionC.noise pollution D.water pollutionKeys:AB2.Work on 2b.Listen again and complete the sentences.1)The air is badly polluted because there are on

14、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 everyday.4)People are also littering in like parks.This is turning beautifulplaces into ugly(丑I陋)ones.Keys:1)more cars 2)pollute 3)are throwing away 4)public

15、 placesThink about:What else can cause the two kinds of pollution in life?VI.Practice(Work on 2c)Use the information in 2a and 2b to role-play conversations between Jason and Susan.Jason:The air has become really polluted around here.Tm getting very worried.Susan:Yes,I used to be able to see stars i

16、n the sky.Jason:The problem is that.VIL DiscussionAsk students to discuss their ideas for solving the air pollution/waste pollution problem.VIIL Work on 2d1.Read 2d and complete the chart.IX.Language pointsProblemsSolving problemsair pollutiontake the bus,subway or ride a bike instead of drivingwast

17、e pollutionbring a bag to go shoppingnever take wooden chopsticks or plastic forks whenbuying takeaway foodthrow rubbish in the bins1.Were trying to save the earth!我们正在竭尽全力拯救地球！try to do=try one best to do 尽力去做某事【语境应用】翻译句子我们将努力在一周内完成这项工作。Well try to finish the work in a week.【拓展】try相关短语:try doing s

18、th.试着做某事try on 试穿try o u t尝试；试验；试试【语境应用】用 try短语的适当形式填空。1)I went to the tailors to my new suit.2)Lefs your method.It seems very good.3)I think you should to improve your English.4)Let me the story.让我试着讲一讲这个故事吧。Keys:try on,try out,try your best,try telling2.Its good for health and it doesnt cost anyth

19、ing!cost v.花费；使付出，指花费金钱，主语通常是物。cost的过去式和过去分词均为CO Stosth.costs sb.some money某物花费某人多少钱【语境应用】翻译句子1)王先生花了 200元买了新衬衫。The new shirt cost Mr.Wang 200 yuan.2)新电脑花了多少钱？How much does the new computer cost?辨析 pay,take,cost&spendtake花费时间，常用于it takes sb.some time to do sth.这一句型中，其中it作形式主语spend花费时间和金钱，主语通常是人，常用搭配

20、：spend.on sth.和spend.(in)doing sth.pay花费金钱，主语通常是人，常用搭配：pay forcost表示花费金钱或值（多少）钱，主语通常是物，常用搭配：sth.cost（s）（sb.）some money.【语境应用】根据句意用take,spend,pay或 cost的适当形式填空。1)That new car them lots of money.2)Mona 50 yuan on the books just now.3)It usually me an hour to do my homework.4)You should some time practi

21、sing your pronunciation.5)My brother 3,000 yuan for the new computer yesterday.Keys:cost,spend,takes,spend,paid3.we should take the bus or subway instead of driving.辨析 instead&instead ofinstead 代替；反而”，作状语。insteadof“代替；而不是“，后接名词、代词、y.-ing形式、介词短语等。【语境应用】选用instead或 instead of填空。1)Well have tea in the g

22、arden in the house.2)Give me the green one the red one.3)Her aunt stayed at home swimming last Sunday.4)I didnt have a pen,so I used a p e n c i l.5)Youll have to ask Zhang Li me.Keys:instead of,instead of,instead of,instead,instead of4.So together,our actions can make a difference and lead to a bet

23、ter future!1)make a difference(to)(对.)产生重大影响或作用【拓展】make no difference to 对.没有影响make some difference to 对.有一些影响e.g.It makes no difference whether you accept or refuse him.The sea air has made some difference to her health.【语境应用】根据汉语意思完成下列句子（每空一词）。1）你是去是留对我都无所谓。It doesnt to me whether you go or stay.2

24、）学习驾驶时，若有一位好教练指导，效果则大不相同。When youre learning to drive,having a good teacher makesKeys:make any difference,a big difference2）lead to 导致e.g.Eating too much sugar can lead to health problems.【链接】lead sb.to.带领某人去.e.g.His pet dog Lucky led us to his house just now.【语境应用】根据汉语意思完成英语句子，每空一词。1）工作太多、休息太少常常导致疾

25、病。Too much work and too little rest often illness.2）昨天那个男孩带领他们去了那家超市。The boy the supermarket yesterday.Keys:lead to,led them toland/air/noise/water pollution 土地/空气/噪音/水污染X.Summarywrite to.给写信the bottom of the river河底throw litter into the river往河里扔垃圾clean up.把打扫干净keep public places clean and beautifu

26、l 保持公共场所干净美观turn.into.把变成cut down air pollution减少空气污染instead of代替be good for.takeaway food对有好处外卖食品make a difference影响；有作用lead toXL Exercises带来；导致I.根据句意，从方框中选择恰当的单词填空，有的需要变换形式。coal,fisherman,plastic,bottom,advantage,wood,cost,ugly,litter1.Look!A boy is lying at the of the stairs.2.The old man likes n

27、ature.He likes living in his small house onthe mountain.3.Most air pollution is caused by the burning of fuels（燃料）like,gas and oil.4.After your picnic,remember to pick up all your.5.The new mobile phone Sara 3,600 yuan last week.6.Most of the in the village stayed at home today because of the badwea

28、ther.7.Although the man is,he has a kind heart.8.To protect the environment,supennarkets dont provide free bagsto shoppers.9.Riding bicycles has so many,so bicycles are popular withpeople.I I.根据汉语意思完成英语句子，每空一词。1.房间里挤满了人。发生什么事了？The room was people.What happened?2.你应该交个笔友，用英语给她写信。You should make a pen

29、 friend and her in English.3.转学对我的一生有影响。Transforming from one school to another_to my life.4.为了盖房子马路边的许多大树已经被砍倒了。Many big trees along the road have been for buildinghouses.5.勇气对说好英语起着很重要的作用。Courage _ _ _ _ _speaking English well.Homework思考校园的不环保现象有哪些。写信给学校的校长，信内列出校园不环保的现象及相应的解决建议。Section A 2(3a-3b)L

30、earning objectives1.To understand the passage about the endangered animal-sharks.2.To have the awareness of protecting the sharks and respecting nature.3.To learn some words and expressions.I.RevisionTranslation.甚至河底都满是垃圾。这个镇上的每个人都应该参加打扫。骑自行车有其它的好处。我买外卖食品从来不拿木筷子和塑料叉子。Keys:Even the bottom of the rive

31、r was full of rubbish.Everyone in this town should play a part in cleaning it up.There are other advantages of bike riding.I never take wooden chopsticks or plastic forks when I buy takeaway food.IL Warming upThere are some animals which are endangered.We should do something to protect theanimals an

32、d the environment!Discuss the following questions.1.Make a list of the protected animals in China.2.What do you know about sharks?3.Do you think sharks are endangered?Why?4.What do you think might have caused a fall in the number of sharks?III.Reading1.Read and match the main ideas.What should we do

33、?What is shark fin soup?What happens to sharks?Para.1 Para.2 Para.32.True or false.(Paragraph 1)Shark fin soup is famous and expensive all around the world.FYoure killing a whole shark when you enjoy a bowl of shark fin soup.T3.Read Paragraph 2 and fill in the chart.people enjoy a bowl of shark fins

34、oupfishermen catch sharks,cut off their fins,then throw them back into the oceanThe numbers of omc kinds of sharksfell quickly4.True or false.(Paragraph 3)1)Two environmental groups call on the government to establish laws to stop thesale of shark fins.T2)Shark fins are good for health.F5.Complete t

35、he fact sheet in 3a.Where shark fin soup is popularsouthern ChinaNumber of sharks caughtand traded every yeararound 70 millionHow government can helpdevelop laws to stop the sale of sharkfinsTwo environmental groupswhich are against“finning”WildAid and the W W F6.According to the text,complete the f

36、ollowing exercises.Some people like to eat shark fin soup,especially in China.But getting theshark fin is very.When people catch sharks,they their finsand throw the sharks back into the ocean.The sharks slowly die because they cantwithout fins.And it is also to the environment.Sharks are at theof th

37、e food chain.If the number of sharks drops too low,it will break thebalance of the nature.Please say no to eating shark fin soup,and take action to save thesharks!Keys:southern,cruel,cut off,swim,harmful,topIV.Practice(Work on 3b)1.Read the passage and fill in the blanks with the words in the box.so

38、,although,if,but,when1)Many people do not realize they are killing a whole shark they enjoy abowl of shark fin soup.2)Sharks are at the top of the food c ha i n,i f their numbers drop,the oceansecosystem will be in danger.3)Many think that sharks are too strong to be e n d a n g e r e d,t h e y are

39、wrong.4)there are no scientific studies to support this,a lot of people believe thatshark fins are good for health.5)Sharks may disappear one day we do not do something to stop the sale ofshark fins.Keys:1)when 2)so 3)but 4)Although 5)if2.Group WorkWhat can we do to save the sharks?Work with your gr

40、oup members and make a posterabout shark protection.V.Language points1.This method 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.”不仅.而且.”连接两个并列关系的成分，着重强调后者，其中的also可以省略。e.g.She not only plays the piano well,but(also)writes music.用于连接两个表示并列关系的成分，着重强调后者，其中的also有

41、时可以省略。not only置于句首时，句子常用倒装语序。e.g.Not only does my sister sing well,but she dances well.not only.but also.连接并列主语时，谓语动词须与后面那个主语在人称和数上保持一致，即临近原则。e.g.Not only the students but also the teacher is working hard.【语境应用】同义句转换，每空一词。(1)She and I have already been to Beijing.she I have already been to Beijing.N

42、ot only.but also(2)He likes to swim and he wants to teach the kids to swim,too.Not only to s w i m,h e wants to teach the kids to swim,does he like.but(3)The twins were late this morning.Sam was late this morning,too.Not only the twins Sam late this morning,but also.wasSam but also the twins late th

43、is morning.Not only.were2)be harmful to 对.有害【语境应用】翻译句子1)吸烟有害健康。Smoking is harmful to the health.2)电脑游戏玩太多对眼睛有害。Playing mobile phone much is harmful to your eyes.2.A shark can no longer swim and slowly dies.鲨鱼不能再游泳然后慢慢死掉。no longer=not.any longerno more=not any more 不再e.g.Mr.Brown no longer works here

44、.=Mr.Brown doesnt work here any longer.Brown先生不再在这儿工作了。You cant drink any more.=You can drink no more.你不能再喝酒了。【语境应用】改为同义句Joe no longer likes dancing.Joe doesnt like dancing any longer/any more.3.Sharks 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 o f在 最高地位；用最高

45、 最大 的(速度，声音等)e.g.He shouted at the top of his voice in order that he might be heard.他尽力大声叫喊，为了别人能听见。【拓展】top短语on top(of s th.)在最上面，在顶部；处于领先地位on top of the w orld极其高兴的e.g.There should be a cup on top of the fridge.When I heard shed passed the exam I felt on top of the world!【语 境 应 用】翻 译 句 子。Mary is at

46、 the top of her class in English.玛 丽 的 英 语 水 平 在 班 上 数 一 数 二。4.If their numbers drop too low,it will bring danger to all ocean life.如 果 它 们 的 数 量 下 降 得 太 多，将 会 给 所 有 海 洋 生 物 带 来 危 险。此 句 复 数 形 式 的number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。常 与number搭配的动 词 有grow,fall等。e.g.In t

47、hat country,the number of children going to school is higher in cities than intowns and villages.在 那 个 国 家，城 市 儿 童 入 学 人 数 比 乡 镇 及 农 村 要 高。In recent years,the number of families that own cars has been growing quicklyrecently.近 几 年 来 拥 有 轿 车 的 家 庭 数 量 增 长 很 快。辨析 a number of,the number of1词条意思及用法例句a n

48、umber of许多，常接可数名词的复数形式，谓语动词用复数形式。A number ofstudents in hisclass are here.the number of的数量，接可数名词的复数形式，但谓语动词用单数。The number of thestudents in hisclass is fifty.VI.Summary1.听说hear of2.切掉cut off3.对.有害be harmful to4.不再no longer5.在.顶部at the top of6.的数量the number of.7.给 .带来危险bring danger to8.到目前为止so far9.不

49、但.而且.not only.上 ut alsoVIL ExercisesI.根据句意，从方框中选择恰当的单词填空，有的需要变换形式，每词限用一次。shark,ecosystem,industry,law,cruel,science1.The king in the story was said to be very.2.When we talk about,we always feel afraid of them.3.1 hope to study after I enter the university.4.They were using animals for experiments.5

50、.Every has a different food chain,depending on which animalsand plants live there.6.The tourism should be developed in this town.IL 根据句意及所给汉语提示，完成下列句子，每空一词。1.The price of tomatoes has（下降）five cents.2.There9s snow_（在.顶部）the mountain.3.You spend too much time in front of the computer.It can_ _ _ _ _ _