英语人教版九年级全册unit13 教案

toDajinMiddleSchool:WuJingxia一、教学目标：1.语言知识目标基本词汇：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottle,president,inspiration,iron,work,metal,creativity,基本词组：beharmfulto,atthetop(ofsth.),takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback基本句型：Weretryingtosavetheearth!Theriverusedtobesoclean.Theairisbadlypolluted.Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.2.技能目标:usedto句型。3.情感目标:有环境危机意识，学会关注环境保护环境。二、教学重难点：1.1）能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。（2）保护环境的措施方法。2.usedto句型。三、教学步骤:SectionA1(1a-2d)I.PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.(2)Factoriesputwasteintotheriver.(3)Peopleshouldthrowawaylitterinthebin.(4)Therearemorecarsontheroad.II.LearningHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusicsmokingnoisepollutioncarsbuildinghousesplaneslitteringmobilephoneswaterpollutionfactoriesairpollution________________________________________________________________________________________________________________________________________________Keys:noisepollutionloudmusicplanesmobilephonesbuildinghousessmokingcarsbuildinghousesairpollutionfactorieswaterpollutionshipsrubbishIII.Listeninglitteringfactories1.1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof________.Therewerenomore______forfishermen渔民)tocatch.Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.Keys:reallydirtyclosedownrubbishcleanupfishlitterwastegovernment2.Listenagainandcheck√)thesentencesyouhear.1)Wecouldgofishingintheriver.2)Theriverwasreallydirty.3)Theriverhasalwaysbeenthenicestriverinthistown.4)Weshouldasktheteachersforhelp.Keys:23Practice1.Role-playtheconversationin1c.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearethrowinglitterintotheriver.Tony:Everyoneinthistownshouldplayapartincleaningitup!2.Makeconversationsusingthepollutionin1a.A:Theriverhasalwaysbeenthenicestriverinthistown.B:Yes,itusedtobesoclean.A:ButIwastherelastweekendandtheriverwasreallydirty.B:Whatcausedtheproblem?A:Peoplearethrowinglitterintotheriver.B:Whatshouldwedo?A:Factoriesarealsoputtingwasteintotheriver.B:Yes,everyoneinthistownshouldplayapart.A:Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.B:Whatelsecanwedo?A:Everyoneshouldhelptocleanuptheriver.Languagepoints1.We’retryingtosavetheearth!我们正在竭尽全力拯救地球!trytodo=tryone’sbesttodo努力去做某事。e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.为了进入大学学习，每个学生都应该努力学习。2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与…有关e.g.Iamnotrelatedtohiminanyway.我和他无任何关系。3.Everyoneinthistownshouldplayapartincleaningitup!playapartin在……方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的饮食在帮助人们长寿方面起着非常大的作用。playapart在……中扮演角色e.g.HewasinvitedtoplayapartinthisTVplay.他被邀请参加这个电视剧的演出。4.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.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e.g.Throwtherubbishout.把垃圾扔出去。Theroomisfullofrubbish.房间里堆满了垃圾。Pickupyourlitterafterapicnic.野餐后将废弃物收拾好。VI.Listening1.2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionC.noisepollutionKeys:BAB.airpollutionD.waterpollution2.2bListenagainandcompletethesentences.1)Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2)Factoriesthatburncoalalso________theairwithalotofblacksmoke.3)Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.4)Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly丑陋)ones.Keys:morecarspollutearethrowingawaypublicplaces3.Listenandanswerthequestions.1)Whoistheinterviewertalkingto?2)Whataretheytalking?3)Whatotherproblemsdotheysee?Keys:SusanandJason.Theenvironmentalproblems.There’stoomuchrubbishandwasteinthestreets.VII.Practice(2c)Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Jason:Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Susan:Yes,Iusedtobeabletoseestarsinthesky.Jason:Theproblemisthat…VIII.DiscussionAskstudentswhatweshoulddotosavetheearth.Helpstudentsanswer,turnoffthelightswhenyouleavearoom;stopridingincars;stopusingpapertowelsornapkins;recyclebooksandpaper.IX.Reading1.Read2dandcompletethechart.ProblemsSolvingproblemsairpollutionwooden木头的)chopsticksorplasticforksrubbish2.Role-playtheconversation.Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantages(优点)ofbikeriding.It’sgoodforhealthanditdoesn’tcost花费)anything!Interviewer:Greatideas!Whataboutwastepollution?Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Jason:Me,too.Also,Inevertakewoodenchopsticksorplastic(塑料)forkswhenIbuytakeaway外卖食品)food.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!X.Summaryandlanguagepoints1.Thisisturningbeautifulplacesintouglyones.turn…into…把……变成……e.g.Theicyrainseemedliketoturnintosnow.渐渐地冻雨又变成雪花的模样。2.It’sgoodforhealthanditdoesn’tcostanything!cost.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cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？take,spend,pay&cost，spend，pay和cost都可以表示花费，但它们的用法各有不同。1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.Itusuallytakesme40minutestocookthedinner.2)spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyon和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday.3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanforhisbreakfastyesterday.4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。e.g.ThenewdresscostLinda88yuan.根据句意用take,spend,pay或cost的适当形式填空。1)Thatnewcar________themlotsofmoney.2)Mona__________50yuanonthebooksjustnow.3)Itusually_______meanhourtodomyhomework.4)Youshould__________sometimepractisingyourpronunciation.5)Mybrother_