人教版九年级英语Unit 13 Section A (1a~2d)

1、Unit13Weretryingtosavetheearth!SectionA（la2d）教学目标【知识与技能】掌握句型：weretryingtosavetheearth!Butitusedtobesoclean.Theairisbadlypolluted.掌握本课单词和短语：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin掌握本课语法：能正确运用现在进行时，现在完成时，被动语态，情态动词和hsedto句型。【情感、态度与价值观】有环境危机意识，学会关注环境保护环境。教学重难点【教学重点】掌

2、握句型：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isedto句型。（2）保护环境的措施方法。【教学难点】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。教学过程Step1PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.Factoriesputwasteintotheriver.Peopleshouldthrowaw

3、aylitterinthebin.Therearemorecarsontheroad.Step2LearningHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesnoisepollutionairpollutionwaterpollutionKeys:noisepollutionloudmusicpla

4、nesmobilephonesbuildinghousesairpollutionfactoriessmokingcarsbuildinghouseswaterpollutionshipsrubbishlitteringfactoriesStep3Listening1.lbListenandcompletethesentences.Whatwastheproblem?Theriverwas.Eventhebottom(底部)oftheriverwasfullof.Therewerenomoreforfishermen(渔民)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!我们正在竭尽全力拯救地球!trytodo=tryonesbesttodo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。Ever

11、yoneinthistownshouldplayapartincleaningitup!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。Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和ru

12、bbish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。1.Irememberscoringtwogoalsinarowduringasoccercompetition.inarow连续几次地e.g.ThisisthethirdSundayinarowth

13、atitsrained.这是接连着的第三个星期天下雨了。2.Iputinmoreeffortandmyexamscoresdoubled.doublev.加倍;是的两倍adj.两倍的;加倍的e.g.Theyboughtadoublebed.他们买了一张双人床。Ithinkwecandoubleourmarksinoneyear.我认为我们可以在一年内把成绩翻一番。Shallwegeteachofthemacardandgifttosaythankyou?shallmodalv.将要;将会e.g.Shallweallgotothefilmtonight?我们今晚都去看电影吗?Everything

14、shallbeingoodorder.一切都应该井然有序。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(木头的)chopsticksorplasticforksrubbishRole-playtheconversation.Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdo

18、wnairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantages(优点)ofbikeriding.Itsgoodforhealthanditdoesntcost(花费)anything!Interviewer:Greatideas!Whataboutwastepollution?Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearag

19、o.Jason:Me,too.Also,Inevertakewoodenchopsticksorplastic(塑料)forkswhenIbuytakeaway(外卖食品)food.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!Step9Summaryandlanguagepoints

20、Thisisturningbeautifulplacesintouglyones.o.把变成e.g.Theicyrainseemedliketoturnintosnow.渐渐地冻雨又变成雪花的模样。Itsgoodforhealthanditdoesntcostanything!costv.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&costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。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.spend多表示花费时间和金钱，主语通常是人,常用于s