Unit 2 Topic 3 Section C

Unit2SavingtheEarthTopic3Whatcanwedoathometoprotecttheenvironment?,SectionC,Areyouagreenerperson?,Howcanwebecomeagreenerperson?,Turnoffthelightswhenweleavearoom.Walkorrideabikeinsteadoftakingabusorataxi.Takeaclothbagwhenwegoshopping.Dontdriveacarifyoutravelashortdistance.Writeonbothsidesofthepaper.Dontusethethingsthatcanbeusedonlyonce.Afterwewashfaces,wecanusethewatertowashclothes.TurnofftheTVsetwhileweareaway.,Itsanelectriccar.Itworkswell,butitsslowandcantrunforlong.,electric(adj.)electricity(n.),Doyouknowthem?,Doyouknowit?,Itsamaglevtrain.Itsadvantagesarequiet,fastandclean,butitstooexpensive.,磁悬浮列车,n.技术,Doyouknowit?,Chinaisoneofthefirstcountriesintheworldtousebiogastechnology.,沼气,1aReadandunderstand.Lookatthepictures.Doyouknowwhattheyare?Choosetherightpictureforeachparagraph.,paragraph2,paragraph3,Paragraph4,1bRead1aandmatchthewordswiththepicturesonPage48.,A.acidrainB.nuclearenergyC.biogas,A,C,B,adj.原子核的，原子能的,酸雨,ReadParagraph1again,andthenmarkTrue(T)orFalse(F).,()Itsgoodthatpeopleproducepowerfromcoal.()Nuclearpowerisdangerous.Sowecantuseit.()Tosolvetheenergyproblem,peopleallovertheworldarelookingfornewwaystoproducepower.,T,F,T,Paragraph1,Paragraph2,Itskeydisadvantageisthattheprocessrequiresalongtime(upto30days)andthecostishigh.它最大的缺陷是生产过程需要很长时间（长达30天）和成本高。,processn.步骤，过程v.加工，处理,requirev.需要，需求,require有两种用法：*require(doing)sth.表示主语“该.了”。如：Thefloorrequireswashing.地板该洗了。*berequiredtodosth.表示主语必须（被要求）.如:Studentsarerequiredtoattendclasses.学生必须按规定上课。,Paragraph3,Electricvehicleswere_inthe1990s.OnApril11,2010,anewkindofelectricvehicle_“Yezi”wasshowninthe2010ShanghaiWorldExpo.Itproduces_fromthesun,thewindandCO2.Itcannotonlyprotecttheenvironmentbutalso_energy.Itstoosmalltoholdmanypeople,but_modelswillbedevelopedinthenearfuture.,develop,electric,name,save,large,developed,named,electricity,save,larger,Paragraph4,1.去30公里以外的飞机场只需花费人们七分钟的时间。,Ittakespeoplejust7minutestogototheairport30kmaway.,2.火车最高时速能够达到每小时431公里。,Thetraincanreachatopspeedof431kmperhour.,1cRead1aagainandcompletethetable.,renewable,longprocessandhighcostforitsbuilding,saveenergy,nopollution,toosmalltoholdmanypeople,quiet,quick,energy-efficient,nopollution,muchmoreexpensivethantraditionalsteelrailways,1aReadandunderstand.,coal-dirty,acidnuclearenergy-dangerouselectricvehicles-thesun,thewindandCO2-protecttheenvironment,saveenergy,smallmaglevtrain-German-built,quiet,quick,nowheelnoise,energy-efficient,notpollutetheairbiogastechnologystraw,grassandanimalwaste,everydaylives,require,thehighcost,Retell1a,German,n.德国人，德语,Germanyn.德国,pl.Germans,wheeln.轮，车轮，轮子,E.g.TheyareGermans,andtheyarefromGermany.,languagepoints,2aReadthepassagebelowandmatchthepictureswiththesentences.Thendiscussindetailtheuseofoneenergysource.,Thesun,wind,wavesandheatfromdeepintheearthareenergysources.Theywillneverrunoutsotheyarecalledrenewablesources.In2011,about16%ofenergyusedworldwidecamefromrenewablesources.Theuseofitisincreasingrapidlyeachyear.,deepadj.深的，厚的adv.深深地，在深处,runout用完，耗尽E.g.Hehasrunoutoffood,sohischildrenarehungry.,2aReadthepassagebelowandmatchthepictureswiththesentences.Thendiscussindetailtheuseofoneenergysource.,Windcanproduceelectricityinmanyplaces.Peopleusesunlighttoproduceelectricity.Seawavesareusedforproducingelectricity.Peopleusehotwaterorsteamfromdeepintheearthtoproduceelectricityandheatforfactories,schoolsandhomes.,阳光，日光,水蒸汽，蒸汽，水汽,2bTakenotesonyourdiscussionandwriteapassagewiththem.,Youmaybeginlikethis:Sunlightcanproducealotofenergy.Peoplebegantousetheenergyfromthesunlightindifferentwaysmanyyearsago,Sunlightcanproducealotofenergy.Peoplebegantousetheenergyfromthesunlightindifferentwaysmanyyearsago.Wecanuseittowarmthehouseinthewinter,toheatthewaterforbaths,andtoproduceelectricity.Whatsmore,wecanevenuseittorunvehiclesdirectlyinthenearfuture.Asisknowntous,theenergyfromthesunlighthasalotofadvantages.Forexample,itisclean,renewableandnon-polluting.Besides,itdoesnoharmtoournature.Sowedbetteruseitasmuchaspossible.,Youcanwriteitlikethis:,Welearn:1.Somewords:technology,wheel,steel,require,German,guide,deep2.Somephrases:runout3.Somesentences:(1)Inmanycountries,peopleproducepowerfromcoal,butitisverydirtyandcausesacidrain.(2)Theywillneverrunoutsotheyarecall