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1、Unit13Weretryingtosavetheearth!SectionA(la2d)教學(xué)目標(biāo)【知識與技能】掌握句型:weretryingtosavetheearth!Butitusedtobesoclean.Theairisbadlypolluted.掌握本課單詞和短語:litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin掌握本課語法:能正確運用現(xiàn)在進(jìn)行時,現(xiàn)在完成時,被動語態(tài),情態(tài)動詞和hsedto句型?!厩楦小B(tài)度與價值觀】有環(huán)境危機(jī)意識,學(xué)會關(guān)注環(huán)境保護(hù)環(huán)境。教學(xué)重難點【教學(xué)重點】掌
2、握句型:1)能正確運用現(xiàn)在進(jìn)行時,現(xiàn)在完成時,被動語態(tài),情態(tài)動詞和isedto句型。(2)保護(hù)環(huán)境的措施方法。【教學(xué)難點】能正確運用現(xiàn)在進(jìn)行時,現(xiàn)在完成時,被動語態(tài),情態(tài)動詞和usedto句型。教學(xué)過程Step1PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.Factoriesputwasteintotheriver.Peopleshouldthrowaw
3、aylitterinthebin.Therearemorecarsontheroad.Step2LearningHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesnoisepollutionairpollutionwaterpollutionKeys:noisepollutionloudmusicpla
4、nesmobilephonesbuildinghousesairpollutionfactoriessmokingcarsbuildinghouseswaterpollutionshipsrubbishlitteringfactoriesStep3Listening1.lbListenandcompletethesentences.Whatwastheproblem?Theriverwas.Eventhebottom(底部)oftheriverwasfullof.Therewerenomoreforfishermen(漁民)tocatch.Whatcausedtheproblem?People
5、arethrowingintotheriver.Factoriesareputtingintotheriver.Howshouldtheproblembesolved?Weshouldwritetotheandaskthemtothefactories.Everyoneshouldhelptotheriver.Keys:reallydirtyrubbishfishlitterwastegovernmentclosedowncleanupListenagainandcheck(V)thesentencesyouhear.Wecouldgofishingintheriver.Theriverwas
6、reallydirty.Theriverhasalwaysbeenthenicestriverinthistown.Weshouldasktheteachersforhelp.Keys:23Step4PracticeRole-playtheconversationin1c.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearethrowinglitterintotheriver.Tony:Everyoneinthistownshou
7、ldplayapartincleaningitup!Makeconversationsusingthepollutionin1a.A:Theriverhasalwaysbeenthenicestriverinthistown.B:Yes,itusedtobesoclean.A:ButIwastherelastweekendandtheriverwasreallydirty.B:Whatcausedtheproblem?A:Peoplearethrowinglitterintotheriver.B:Whatshouldwedo?A:Factoriesarealsoputtingwasteinto
8、theriver.B:Yes,everyoneinthistownshouldplayapart.A:Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.B:Whatelsecanwedo?A:Everyoneshouldhelptocleanuptheriver.Workon2c.Role-playaconversationinyourgroupusingtheinformationin2aand2b.A:DoyourememberMr.Hunt?B:Ofcourse!Heisagreatteacher.Hegavere
9、allyclearinstructionsduringtheP.E.class.C:Yeah,hewaskindwhenIhurtmyknee.Hetoldmetotakeabreakfromrunning.Learnthenewword:instruction.Workon2d.Role-playtheconversation.LetSsreadthetextandanswerthequestions.1)Whichteacherswilltheymiss?2)Whatsubjectsdotheteachersteach?3)Whywilltheymissthem?4)Whatwillthe
10、ydotothankthem?Step5Languagepoints1.Weretryingtosavetheearth!我們正在竭盡全力拯救地球!trytodo=tryonesbesttodo努力去做某事。e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.為了進(jìn)入大學(xué)學(xué)習(xí),每個學(xué)生都應(yīng)該努力學(xué)習(xí)。2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto與有關(guān)e.g.Iamnotrelatedtohiminanyway.我和他無任何關(guān)系。Ever
11、yoneinthistownshouldplayapartincleaningitup!playapartin在方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的飲食在幫助人們長壽方面起著非常大的作用。playapart在中扮演角色e.g.HewasinvitedtoplayapartinthisTVplay.他被邀請參加這個電視劇的演出。Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和ru
12、bbish都可指“垃圾”,用作不可數(shù)名詞。rubbish指“沒用的東西(被扔或?qū)⒁獊G棄的無用的東西)”不可回收。litter指“(室內(nèi)或公共場所)亂扔的廢物(紙屑、不要的包裝紙、廢瓶等)”還可回收e.g.Throwtherubbishout.把垃圾扔出去。Theroomisfullofrubbish.房間里堆滿了垃圾。Pickupyourlitterafterapicnic.野餐后將廢棄物收拾好。1.Irememberscoringtwogoalsinarowduringasoccercompetition.inarow連續(xù)幾次地e.g.ThisisthethirdSundayinarowth
13、atitsrained.這是接連著的第三個星期天下雨了。2.Iputinmoreeffortandmyexamscoresdoubled.doublev.加倍;是的兩倍adj.兩倍的;加倍的e.g.Theyboughtadoublebed.他們買了一張雙人床。Ithinkwecandoubleourmarksinoneyear.我認(rèn)為我們可以在一年內(nèi)把成績翻一番。Shallwegeteachofthemacardandgifttosaythankyou?shallmodalv.將要;將會e.g.Shallweallgotothefilmtonight?我們今晚都去看電影嗎?Everything
14、shallbeingoodorder.一切都應(yīng)該井然有序。Ishallfollowallyourinstructions.我一定照您的指示去做。Step6Listening2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollutionKeys:BA2.2bListenagainandcompletethesentences.Theairisbadlypollutedbecausether
15、eareontheroadthesedays.Factoriesthatburncoalalsotheairwithalotofblacksmoke.Thereisalsotoomuchrubbishandwaste.Peoplethingseveryday.Peoplearealsolitteringinlikeparks.Thisisturningbeautifulplacesintougly(丑陋)ones.Keys:morecarspollutearethrowingawaypublicplacesListenandanswerthequestions.Whoistheintervie
16、wertalkingto?Whataretheytalking?Whatotherproblemsdotheysee?Keys:SusanandJason.Theenvironmentalproblems.Therestoomuchrubbishandwasteinthestreets.Step7PracticeUsetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Jason:Theairhasbecomereallypollutedaroundhere.Imgettingveryworried.Susan
17、:Yes,Iusedtobeabletoseestarsinthesky.Jason:Theproblemisthat.Step8Reading1.Read2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionwooden(木頭的)chopsticksorplasticforksrubbishRole-playtheconversation.Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdo
18、wnairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantages(優(yōu)點)ofbikeriding.Itsgoodforhealthanditdoesntcost(花費)anything!Interviewer:Greatideas!Whataboutwastepollution?Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearag
19、o.Jason:Me,too.Also,Inevertakewoodenchopsticksorplastic(塑料)forkswhenIbuytakeaway(外賣食品)food.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Step9Summaryandlanguagepoints
20、Thisisturningbeautifulplacesintouglyones.o.把變成e.g.Theicyrainseemedliketoturnintosnow.漸漸地凍雨又變成雪花的模樣。Itsgoodforhealthanditdoesntcostanything!costv.花費;使付出指花費金錢,主語通常是物。cost的過去式和過去分詞均為cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元買了新襯衫。Howmuchdoesthenewcomputercost?新電腦花了多少錢?take,spend,pay&costtake,spend,pay和cost都可以表示“花費”,但它們的用法各有不同。take多表示花費時間,常用于Ittakessb.sometimetodosth.這一句型中,其中it作形式主語。e.g.Itusuallytakesme40minutestocookthedinner.spend多表示花費時間和金錢,主語通常是人,常用于s
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