Module12Unit3Languageinuse课件外研版（2012）九年级英语上册

Unit3LanguageinuseModule12Saveourworld01学习目标

能熟悉并能正确运用本模块的单词和短语

能正确分析构词法的前缀后缀,并能对其进行归纳和总结

能够谈论环保措施，并提出有关环保的建议WarmingupFreetalkCanyousaysomethingabouttheenvironmentalprotectionmeasurestakenindailylife?WarmingupFreetalkPleaseexplainthewords“reduce”,“reuse”,“recycle”inEnglish.Presentation-able-fulim--lessre-un-carecollecthopepossibleuseusualwantedwasteMakenewwords.JointhepartsofwordsinBoxAwiththewordsinBoxB.Youneedtousesomeofthepartsmorethanonce.AB02新课讲授Nowworkingroups.PlaytheguessinggameEnglishforFun.collectablehopefulhopelessimpossibleunusualuselessreuseunwantedwasteful构词法：合成法派生法转化法Grammar一、合成法

将两个或两个以上独立且语义不同的的单词合在一起构成新词的方法叫做合成法。如：afternoon、kind-hearted、maybe等等。掌握合成法有助于我们理解和记忆更多单词。Nowworkingroups.PlaytheguessinggameEnglishforFun.

fullofcare____________2.canbecollected____________3.fullofhope____________4.withoutanyhope____________carefulcollectablehopefulhopeless

EnglishforFun5.notpossible____________6.notusual____________7.withoutanyuse____________8.useagain____________9.notwanted____________10.makingalotofwaste____________

unusualuselessreuseunwantedwasteful

impossible后缀功能例词-ly构成形容词friendly,lovely,monthly,weekly-ousdangerous,famous-teen构成数词eighteen,fifteen,seventeen-thfifteenth,fifth,fortieth,seventh-tyforty,sixty,twenty-ly构成副词badly,carefully,carelessly,happily,quickly3.转化法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作转化法。常见的转化有：1)动词转化为名词

—Let’stalkaboutitmore.

咱们再谈谈这件事吧。

—Ithinkwe’dbetterfinishthetalknow.

我想我们最好现在结束谈话。2.–ful表示“充满……的，具有……性的”，构成

形容词，如：helpful,hopeful,powerful,useful,

careful,beautiful3.–less与-ful相反，表示“少的，不足的”，构成

形容词，如：helpless,hopeless,powerless,useless,

careless1.动词变名词：-ation-ment-er-orinvitation,education,agreement,governmentteacher,workervisitor,sailor让我们来看一些不改变词根的基本意义，而是改变了词性的后缀新课讲解8Listenandcheck(√)thetruesentences.1.ItisOKtothrowusedthingsaway.Lookingafterthemtakesalotoftime.2.Donotthrowawaythingsmadeofglass,plasticandpaper,butrecyclethemwhenpossible.3.Takeabagwhenyougoshopping.4.Producingelectricityandusingoilwillnotcausepollution.5.Turnofflightswhenyoudonotneedthem.6.Rideabikeorwalk,anddonotoftendriveyourcar.

×√√

×√√新课讲解9Listenagainandcompletethetable.Advice1.Don'tthrowawaythingsmadeof______________________，but________them.2.________yourplasticbagswhenyoucanand__________withyouwhenyougoshopping.3.Uselesselectricityandoilto________________.4．Don'tleavelightsonand__________________.5．______________anddonotoftendriveyourcar.glass,plasticandpaper

recycle

Reuse

takeabag

reducepollution

wasteelectricity

Walkorcycle

新课讲解Aroundtheworld

EarthHourEarthHourisheldtowardtheendofMarcheachyear.DuringEarthHour,peopleallacrosstheworldswitchoffthelightstheydonotneed.Theydothistoshowtheirawarenessofclimatechange.ThefirstEarthHourwasheldin2007inSydney,wheremorethan2.2millionpeopleswitchedofftheirlights.Today,moreandmorecitiesareta­kingpartintheevent,suchasBeijing,London,RomeandNewYork,andlandmarksliketheEmpireStateBuildingandtheGoldenGateBridgewillgodark.新课讲解10Workingroups.Decidewhatkindofpollutionyouwanttotalkabout.Chooseasubjectthatyoucareaboutthemost.Itcouldbewaterpollution,airpollution,etc.Findoutmoreinformationaboutyoursubject.Lookituponawebsiteorinabooks.AdviceReasons3.Uselesselectricityandoilto_________________.4.Don’tleavelightsonand_________________.5.__________________anddonotoftendriveyourcar.Producingelectricityandusingoilmaycause_________________________________________________.pollutiontoair,waterandearthinmanydifferentwaysreducepollutionwasteelectricityWalkorcycle

EarthHourisheldtowardtheendofMarcheachyear.DuringEarthHour,peopleallacrosstheworldswitchoffthelightstheydonotneed.Theydothistoshowtheirawarenessofclimatechange.ThefirstEarthHourwasheldin2007inSydney,wheremorethan2.2millionpeopleswitchedofftheirlights.Today,moreandmorecitiesaretakingpartintheevent,suchasBeijing,London,RomeandNewYork,andlandmarksliketheEmpireStateBuildingandtheGoldenGateBridgewillgodark.EarthHour●Taketurnstosaywhatyouthinkabouttheproblemandwhatcanbedone.●Listentowhatotherssay.Ifyouagreewithwhattheyhavesaid,say“Iagree”,“That’strue”or“That’sagoodpoint”;ifyoudonotagreewithwhatsomeonesays,say“I’msorry,butIdon’tagree.Ithinkthat…”Task3:

Workinpairs.

Yes,Iagreewithyouthatairpollutionisoneofthemostseriousproblems.Muchenergyisneededtorunthefactories.Nearlyallofthisenergyisproducedbyburningfuels.Theburningcausesairpollution.Scientistsarefindingwaystostopairpollution.Theyarestudyingnewwaysofgeneratingelectricitytohavelesspollution.Also,engineerstrytodesignandlocatenewpowerplants(发电厂)toprotecttheenvironment.However,itis