Module12SaveourworldUnit3Languageinuse教學(xué)設(shè)計(jì)【教學(xué)目標(biāo)】KnowledgeobjectiveTopracticeword-building:compounds,derivatives,conversionAbilityobjectiveEnablestudentstolearnhowtoprotectenvironmentandEarthHour.MoralobjectiveToarousetheawarenessofstudentsprotectingenvironment.【教學(xué)重點(diǎn)】Tolearnword-building:compounds,derivatives,conversion【教學(xué)方法】PWPmethod,task-basedmethod【教學(xué)手段】Ataperecorder,multimediaandsomepictures【教學(xué)過(guò)程】TeachingProcedures:Step1LanguagepracticeReusemeans“useagain”.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.Step2Makeanewwords.JointhepartsofwordsinBoxAwiththewordsinBoxB.Youneedtousesomeofthepartsmorethanonce.A–able-fulim--lessre-un-Bcarecollecthopepossibleuse usualwantedwasteStep3Nowworkingroups.PlaytheguessinggameEnglishforFun.EnglishforFunfullofcare____________2.canbecollected____________3.fullofhope____________4.withoutanyhope____________5.notpossible____________6.notusual____________7.withoutanyuse____________8.useagain____________9.notwanted____________10.makingalotofwaste____________Step4LearningtolearnSometimesifyouknowthemeaningofthepartsofaword,youcanworkoutthemeaningofthewholeword.re+new+able;re=again,able=canberenewable=canbenewagainStep5構(gòu)詞法1.合成法將兩個(gè)或兩個(gè)以上獨(dú)立且語(yǔ)義不同的單詞合在一起構(gòu)成新詞的方法叫做合成法。合成法是一種比較靈活的構(gòu)詞方法，可以合成名詞、形容詞、副詞、代詞、動(dòng)詞等。例如：afternoon,sportsman,blackboard,sportsperson,newspaper,airplane,classmate,grandfather等就是通過(guò)合成構(gòu)詞法構(gòu)成的名詞；kind-hearted,middle-aged,hard-working等為合成形容詞；however,maybe,himself,everyone,nothing,overlook等也都是通過(guò)合成法構(gòu)成的單詞。2.派生法通過(guò)在詞根前面加前綴或在詞根后面加后綴構(gòu)成一個(gè)新詞的方法叫作派生法。要通過(guò)派生法理解和記憶單詞,我們需要掌握常見(jiàn)的前綴和后綴及派生規(guī)律。(1)常見(jiàn)前綴前綴含義例詞dis-不disagree,dislikeen-使……處于某種狀態(tài)enable,enrichim-,in-不impossible,impatient,inexpensiveinter-在……之間,相互international,interconnectmis-錯(cuò)誤地mislead,misunderstandnon-不,非non-smoker,non-nativere-再,重復(fù)rewrite,retellun-不unable,unhappy,unpopular(2)常見(jiàn)后綴后綴功能例詞-er,-or構(gòu)成名詞teacher,worker,visitor-ianmusician-ingbuilding,painting,shopping,meaning-istartist,scientist-mentagreement,government-nesscoldness,happiness,illness-thtruth,warmth-tioncompetition,education,information,invitation-tyactivity,safety-ble,ible構(gòu)成形容詞comfortable,eatable,enjoyable,possible,probable-alenvironmental,international,national,traditional-fulcareful,helpful,useful-iveactive,expensive-lesscareless,helpless,homeless,useless-lyfriendly,lovely,monthly,weekly-ousdangerous,famous-teen構(gòu)成數(shù)詞eighteen,fifteen,seventeen-thfifteenth,fifth,fortieth,seventh-tyforty,sixty,twenty-ly構(gòu)成副詞badly,carefully,carelessly,happily,quickly(3)派生規(guī)律由一個(gè)詞根加上相應(yīng)的詞綴可以派生出名詞、形容詞、副詞等，掌握派生規(guī)律對(duì)擴(kuò)充詞匯有很大幫助。例如：由interest可以派生出：uninterestinginterest—interesting—interestinglyinterested—uninterested由help可以派生出：helpless—helplesslyhelp—helpful—helpfully由able可以派生出：enableableunableabilitydisable3.轉(zhuǎn)化法英語(yǔ)構(gòu)詞法中把一種詞性轉(zhuǎn)化為另一種詞性而詞形不變的方法稱作轉(zhuǎn)化法。常見(jiàn)的轉(zhuǎn)化有：(1)動(dòng)詞轉(zhuǎn)化為名詞—Let’stalkaboutitmore.咱們?cè)僬務(wù)勥@件事吧?！狪thinkwe’dbetterfinishthetalknow.我想我們最好現(xiàn)在結(jié)束談話。(2)名詞轉(zhuǎn)化為動(dòng)詞Shegavemeacupofwater.她給了我一杯水。Youshouldwatertheflowerstwiceaday.你應(yīng)該每天給這些花澆兩次水。(3)形容詞轉(zhuǎn)化為名詞Shewaswearingablackdress.她穿著一條黑色的裙子。Thegirlinblacklooksverybeautiful.那個(gè)穿黑衣服的女孩看上去很漂亮。Step6ExercisesCompletethesentenceswiththewordsinthebox.hopefulimpossiblereuseunhealthywasteful1.Pollutedwateris____________.2.Itis_________tothrowsomuchfoodaway.3.Ifyoulookafterthingswell,youmay________someofthemlater.4.Itis___________tocleanupthewholeriverinsuchashorttime.5.Ifwepayattentiontopollutionnow,thefuturewillbe__________.Step7Completethetable.NounVerbAdjectiveAdverbuseful/uselesshopehopefully/hopelesslypollution——water————waste————usually/unusuallyStep8CompletethesentenceswiththecorrectformofthewordsinActivity3.Shewashopefulthathernewjobwouldmakehermoresuccessful.Thefactory___________theriver,andthefishdied.2.Weoftenwalkinthecountryside.Itisa(n)_______activityforus.3.Donotusesomuchwater.Itisvery__________.4.Tokeeptheflowersgrowing,youneedto_________themonceaday.Step9Completethesentences.Alunchboxisaboxthatyoukeepyourlunchin.1.A___________isacardthatyouwriteononesideofandsendtosomeonebypost.2.A___________isaroomwhereyouhaveclassesatschool.3.A___________isabookthathasoneormorestoriesforchildren.4.A____________isablackboardthatisusedatschoolforwritingonwithchalk.Step10WorkinpairsLookatthepicturesandanswerthequestions.Whatkindsofthingscanberecycled?2.Howcanthesethingsbereused?3.Howdoesthishelptheenvironment?4.Haveyoueverrecycledorusedthingsthatcanberecycled?How?Step11Completetheconversationwiththecorrectformoftheexpressionsinthebox.begoodforthrowawayturnoffworryaboutMike:IhearyouareofftotheCaribbeanforaholiday!Luckyyou!Butaren’tyou_____________thepollutionthatsuchlongplanejourneymaycausefortheenvironment?Ken:Iknow,butwhatcanIdoaboutit?I’vealreadytriedmybesttoprotecttheenvironment.Irecycle.Idon’t____________thingsifIdon’twantthemanymore.I__________thelightswhenIleavearoom.Don’ttellmeIshouldn’ttravelbyplaneanymore!Mike:No,ofcoursenot.Butwecandomoretoprotecttheenvironment.Forexample,wecanhelpkeeptheaircleanbyplantingtrees.Trees______________theenvironment.Inthisway,wecanreducetheharmofpollution.Ken:Good!SoIcanenjoymyholiday,andwhenIcomeback,I’llplantsometrees!Mike:That’stheidea!Maybewecanalljoininandstartasmallforest!Step12ListeningListenandcheck(√)thetruesentences.Donotthrowawaythingsmadeofglass,plasticandpaper,butrecyclethemwhenpossible.b)Takeabagwhenyougoshopping.c)ItisOKtothrowusedthingsaway.Lookingafterthemtakesalotoftime.d)Turnofflightswhenyoudonotneedthem.e)Rideabikeorwalk,anddonotoftendriveyourcar.f)Papercupsandbottleddrinksmakeourlifeeasier.Wecanusethemasmuchaspossible.Step13Listenagainandcompletethetable.AdviceReasons1.Don’tthrowawaythingsmadeof_________,but_______them.Throwingthingsawayiswasteful.2.__________yourplasticbagswhenyoucanand__________withyouwhenyougoshopping.Plasticbags__________recycle.3.Uselesselectricityandoilto_________.4.Don’tleavelightsonand__________.5.________anddonotoftendriveyourcar.Producingelectricityandusingoilmaycause___________.Step14AroundtheworldEarthHourReadthepassageandanswerthequestions.WhenisEarthHourheldeachyear?WhydopeopleswitchoffthelightsduringEarthHour?WhenandwherewasthefirstEarthHourheld?Whichcitytakepartintheeventtoday?Step15Moduletask:Discussingwhatyoucandoa