九年级英语上册 Module 12 Unit 3 Language in use教学课件 （新版）外研版.ppt

Module12Saveourworld,Unit3Languageinuse,Tosummarizeandconsolidatetherulesofwordbuilding,Objective:,Observe,Observethefollowingsentencescarefully.Theyareallfromthismodule.,1.Reusemeans“useagain”.2.Thoughpollutionisheavynow,Idontthinkitshopeless.3.Iftheriversarepolluted,farmerscantusethewaterfortheircrops.4.Ifeveryonestartstodosomething,theworldwillbesaved.,5.Weallneedahealthyenvironment,butweproducewasteeveryday,anditisharmfultoourenvironment.6.Donotwastethings.7.Repeatthesethreewordsdaily:reduce,reuseandrecycle.8.Beforeyoubuysomethingnew,thinkwhetheritisreallynecessarybecausemaybeoldoneisjustasgood!9.butletstakethesesimplestepstodaysothatwewillsavetheworldforourgrandsonsandgranddaughterstomorrow.,1._(use)means“useagain”.2.Though_(pollute)isheavynow,Idontthinkits_(hope).3.Iftheriversarepolluted,_(farm)cantusethewaterfortheircrops.4.If_(everyone)startstodo_(something),theworldwillbesaved.5.Weallneeda_(health)environment,butweproduce_(waste)everyday,anditis_(harm)toourenvironment.,Reuse,pollution,hopeless,farmers,everyone,something,healthy,waste,harmful,go,Ready?,6.Donot_(waste)things.7.Repeatthesethreewordsdaily:reduce,_(use)and_(recycle).8.Beforeyoubuy_(something)new,thinkwhetheritis_(real)necessarybecausemaybeoldoneisjustasgood!9.butletstakethesesimplestepstodaysothatwewillsavetheworldforour_(grandson)and_(granddaughter)tomorrow.,waste,reuse,recycle,something,really,grandsons,granddaughters,构词法,1.合成法,将两个或两个以上独立且语义不同的单词合在一起构成新词的方法称作合成法。,2.派生法,通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法称作派生法。,2.派生法,2.派生法,词根,词缀,名词,形容词,副词,+,interest,uninterested,interestingly,uninteresting,interested,interesting,help,helpfully,helplessly,helpful,helpless,able,disable,unable,enable,ability,3.转换法,英语构词法中把一种词性转化为另一种词性而词形不变的方法称为转化法。,(1)v.n.Letstalkaboutitmore.Ithinkwedbetterfinishthetalknow.咱们再谈谈这件事吧。我想我们最好现在结束谈话。,(2)n.v.Shegavemeacupofwater.Youshouldwatertheflowerstwiceaday.她给了我一杯水。你应该每天给这些花浇两次水。,(3)adj.n.Shewaswearingablackdress.Thegirlinblacklooksverybeautiful.她穿着一条黑色的裙子。那个穿黑衣服的女孩看上去很漂亮。,Learningto,Sometimesifyouknowthemeaningofthepartsofaword,youcanworkoutthemeaningofthewholeword.,re+new+ablerenewable,again,canbe,canbenewagain,1,P100,Makenewwords.JointhepartsofthewordsinBoxAwiththewordsinBoxB.youneedtousesomeofthepartsmorethanonce.,-able-fulim-lessre-un-,carecollecthopepossibleuseusualwantedwaste,A,B,carefulcareless,collectable,hopefulhopeless,impossible,reuseusableusefuluseless,unwanted,wasteful,unusual,Nowworkingroups.PlaytheguessinggameEnglishforFun.,EnglishforFun,1.fullofcare_2.canbecollected_3.fullofhope_4.withoutanyhope_5.notpossible_,6.notusual_7.withoutanyuse_8.useagain_9.notwanted_10.makingalotofwaste_,careful,collectable,hopeful,hopeless,impossible,unusual,useless,reuse,unwanted,wasteful,2,P100,Completethesentenceswiththewordsinthebox.,hopefulimpossiblereuseunhealthywasteful,1.Pollutedwateris_.2.Itis_tothrowsomuchfoodaway.3.Ifyoulookafterthingswell,youmay_someofthemlater.4.Itis_tocleanupthewholeriverinsuchashorttime.5.Ifwepayattentiontopollutionnow,thefuturewillbe_.,unhealthy,wasteful,reuse,impossible,hopeful,3,P101,Completethetable.,use,use,usefully/uselessly,hope,hopeful/hopeless,pollute,polluted/unpolluted,water,waste,wasteful/wasted,wastefully,usual/unusual,4,P101,CompletethesentenceswiththecorrectformofthewordsinActivity3.,Shewas_thathernewjobwouldmakehermoresuccessful.,hopeful,1.Thefactory_theriver,andthefishdied.2.Weoftenwalkinthecountryside.Itisa(n)_activityforus.3.Donotusesomuchwater.Itisvery_.4.Tokeeptheflowersgrowing,youneedto_themonceaday.,polluted,usual,wasteful,water,5,P101,Completethesentences.,A_isaboxthatyoukeepyourlunchin.,lunchbox,1.A_isacardthatyouwriteononesideofandsendtosomeonebypost.2.A_isaroomwhereyouhaveclassesatschool.3.A_isabookthathasoneormorestoriesforchildren.4.A_isablackboardthatisusedatschoolforwritingonwithchalk.,postcard,classroom,storybook,blackboard,6,P101,Workinpairs.Lookatthepicturesandanswerthequestions.,1.Whatkindofthingscanberecycled?2.Howcanthesethingsbeused?3.Howdoesthishelptheenvironment?,4.Haveyoueverrecycledorusedthingsthatcanberecycled?How?,possibleanswers:,Cloth,paper,cans,plastic,glass,etc.,Recycledpapercanbeusedfornotebooks,ticketsorwritingpaper.,Ithelpssavealotofresourcesandreducegreenhousegasemissions.,Yes.Irecycledaluminumcansandpaperbysellingthemtotherecycledfactory.,Mike:IhearyouareofftotheCaribbeanforaholiday!Luckyyou!Butarentyou(1)_thepollutionthatsuchlongplanejourneysmaycausefortheenvironment?Ken:Iknow,butwhatcanIdoaboutit?Ialreadytrymybesttoprotecttheenvironment.Irecycle.Idont(2)_thingsifIdontwantthemanymore.I(3)_thelightswhenIleavearoom.DonttellmeIshouldnttravelbyplaneanymore!,begoodforthrowawayturnoffworryabout,worriedabout,throwaway,turnoff,7,P102,Completetheconversationwiththecorrectformoftheexpressionsinthebox.,Mike:No,ofcoursenot.Butwecandomoretoprotecttheenvironment.Forexample,wecanhelpkeeptheaircleanbyplantingtrees.Trees(4)_theenvironment.Inthisway,wecanreducetheharmofpollution.Ken:Good!SoIcanenjoymyholiday,andwhenIcomeback,Illplantsometrees!Mike:Thatstheidea!Maybewecanalljoininandstartasmallforest!,begoodforthrowawayturnoffworryabout,aregoodfor,1.ItisOKtothrowusedthingsaway.Lookingafterthemtakesalotoftime.2.Donotthrowawaythingsmadeofglass,plasticandpaper,butrecyclethemwhenpossible.3.Takeabagwhenyougoshopping.4.Producingelectricityandusingoilwillnotcausepollution.5.Turnofflightswhenyoudonotneedthem.6.Rideabikeorwalk,anddonotoftendriveyourcar.,8,P102,Listenandcheck()thetruesentences.,glass,plasticandpaper,recycle,Reuse,takeabag,arehardto,reducepollution,wasteelectricity,Walkorcycle,pollution,9,P102,Listenagainandcompletethetable.,Review,英语中常见的构词法：1.合成法2.派生法（加前缀、后缀）3.转化法（词性变词形不变）,1.Bothofthebookswere_toherandshecouldntdecidewhichonetobuy.2.How_ofJohntobreakthecup!3.Themeathasastrangesmell.Imafraiditshardly_.,I.从方框中选择适当的单词并用其正确形式填空。,Quiz,helpful,careless,eatable,correctenergyeatpossibleappearhelpsuccesscare,correctenergyeatpossibleappearhelpsuccesscare,4.Tomisan_boyanditseemsthathenevergetstired.5.Imafraidthatits_forustogettherebeforeeight.6.Thesun_behindthecloudsanditbegantorain.7.Imsorrytosayyouransweris_.Pleasetryagain.8