2019春九年级英语下册Unit4LifeonMarsGrammar教学课件新版牛津版.ppt

Unit4LifeonMars,Grammar,宾语从句和简单句之间的转换,我们可以用介词把状语从句转换为简单句。,1.ThephotosremindmethatItravelledtotheUKfiveyearsago.,ThephotosremindmeofmytriptotheUKfiveyearsago.,2.AreyoucertainthatTomissatisfiedwiththeplan?,AreyoucertainaboutTomssatisfactionwiththeplan?,常用的一些动词和介词的搭配有：Remindsomebodyof.使某人想起.Besure/certainabout对确信,定语从句和简单句之间的转换,我们可以用介词把定语从句转换为简单句。,1.ThegirlwhoisinahatisLucyKing.,ThegirlinahatisLucyKing.,2.Iprefertostayinahotelroomwhichhasaseaview.,Iprefertostayinahotelroomwithaseaview.,状语从句和简单句之间的转换,1.because引导的原因状语从句用短语becauseof可转换成简单句。,Hewaslateforschoolbecauseitrainedheavily.,Hewaslateforschoolbecauseoftheheavyrain.,我们可以用介词短语把状语从句转换为简单句。,2.ifnot/no引导的条件状语从句可借助without短语转化为简单句。,Humanscannotsurviveifthereisnofood,wateroroxygen.Humanscannotsurvivewithoutfood,wateroroxygen.,3.时间状语从句可借助介词短语转化为简单句。,IcouldswimwhenIwaseightyearsold.Icouldswimattheageofeight.,Hewenthomeafterhefinishedhiswork.Hewenthomeafterfinishinghiswork.,4.sothat引导的目的状语从句可用“inorderto”或“soasto”转换为简单句。,Hedecidedtobuyacameraonlinesothatshecouldreceiveitsoon.,Shedecidedtobuyacameraonlineinorderto/soastoreceiveitsoon.,5.sothat引导的结果状语从句的可用“enoughtodo”结构变成简单句。,Thishallissolargethatitcanhold2000people.,Thishallislargeenoughtohold2000people.,活学活用,Whatdomanypeoplethinkofthelifebytheyear2100?,Theybelieve_bytheyear2100.,(that)wewillliveontheplanetMars,WhowilldomostoftheworkonMars?,Peoplethink_mostofourwork.Andtheyaresure_timefortheirhobbies.,(that)robotswilldo,(that)theywillhave,Usage1,Objectclausesintroducedbythat,Peoplethink(that)robotswilldomostofourwork.Manypeoplebelieve(that)wewillliveontheplanetMarsbytheyear2100.Manypeoplearesure(that)theywillhavemoretimefortheirhobbies.,Fromthesentences,weknow(that)anobjectclausecanbeputaftersome_,suchasthink,believe,know,oraftersome_,suchassure,certain.,verbs,adjectives,Manypeoplebelieve(that)wewillliveontheplanetMarsbytheyear2100.(改为否定句),Whichoneisbetter?,Manypeopledontbelieve(that)wewillliveontheplanetMarsbytheyear2100.,Manypeoplebelieve(that)wewillnotliveontheplanetMarsbytheyear2100.,Wealwaysputnotbeforethinkandbelieve.,Trytofindoutwhetheritisanobjectclauseornot.,TheseplantswillproducefoodandoxygenthatweneedtoliveonMars.ScientistswilldevelopplantsthatcangrowonMars.PeoplethinkthathumansonMarshavetowearspecialbootstomakethemselvesheavier.WeallknowthatMarsisaplanetinthesolarsystem.ThejourneytoMarscouldtakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.SomescientistsdonotbelievethatthejourneytoMarswillbeverycomfortable.,o,o,o,N,N,N,CananyplantsgrowonMarsnow?,Wedontknow/arewondering/arenotsure_onMars.,if/whetheranyplantscangrow,Manypeoplearesurethatsomeplantscanproduceenoughwateronmars,arentthey?,No,nobodyissure_onMarsornot.,whetheranyplantscanproduceenoughwater,Usage2,Wedontknow/arewonderingif/whetheranyplantscangrowonMars.NobodyissurewhetheranyplantscanproduceenoughwateronMarsornot.,Fromthetwosentences,weknowthatwecanuse_or_tointroduceanobjectclausewhenitexpressesayes/noquestion.,if,whether,Whenweseethewordor,wecanonlyusewhether.,CananyplantsgrowonMarsnow?,v,S,Wedontknow/arewonderingif/whetheranyplantscangrowonMars.,S,v,Weusethesamewordorderasinastatement.,Correctthesentence;,IslivingonMarssafe?Afterreadingthebook,TomwaswonderingifislivingonMarssafe?,livingonMarswas,HelpDanielknowmoreaboutlifeonMars,1.WilltransportonMarsbemuchbetterthanonEarth?Areyoucertain_?2.IsgravityaproblemfortheearlytravelersonMars?Canyoutellme_?3.DoesittakeverylongtotravelfromEarthtoMars?Doyouknow_?,if/whethertransportonMarswillbemuchbetterthanonEarth,if/whethergravityisaproblemfortheearlytravelersonMars,if/whetherittakesverylongtotravelfromEarthtoMars,4.AremanypeoplegoingtomovetoMars?Canyoutellme_?5.DidtheUSAsendaspacerobotontoMarslastyear?Doyouknow_?,if/whethermanypeoplearegoingtomovetoMars,if/whethertheUSAsentaspacerobotontoMarslastyear,HelpDanielfinishhisdiaryaboutwhathehasfoundaboutlivingonMarswiththat,iforwhether.,Doyoubelieve_manwillbeabletoliveontheplanetMarsinthefuture?Scientistsareworkinghardtomakethisdreamcometrue.However,theyarestillnotsure_wecouldgrowplantsonMars.Also,manyscientiststhink_gravityisaproblemforthefirstsettlers.Theyallagree_thejourneytoMarswillnotbecomfortable.Therefore,Iamwondering_therewillbemanypeoplewillingtomovetoMarsornot.,that,if/whether,that,that,whether,Exercises,改写句子：1.NeilArmstrongreceivedhisstudentpilotslicencewhenhewas16.NeilArmstrongreceivedhisstudentpilotslicence_.,2.Peoplemightfloatinspacebecausethegravityislow.Peoplemightfloatinspace_thelowgravity.3.Humanscannotsurviveifthereisnofood,wateroroxygen.Humanscannotsurvive_food,wateroroxygen.,attheageof16,becauseof,without,Rewritethesentencesusingthewordsinbrackets.,2.YuriGagarinbecamethefirstmantogointoouterspaceattheageof27.(when),NeiArmstrongtookhisfirstflightattheageofsix.,1.NeilArmstrongtookhisfirstflightwhenhewasonlysix.(attheageof),YuriGagarinbecamethefirstmantogointoouterspacewhenhewas27.,4.Ifthereisnofreshfood,mealswillnotbeastastyastheyaretoday.(without),3.PeoplemightmovetoanotherplanetinthefuturebecausethepopulationontheEarthisincreasingrapidly.(becauseof),PeoplemightmovetoanotherplanetinthefuturebecauseoftherapidlyincreasingpopulationontheEarth.,Withoutfreshfood,mealswillnotbeastastyastheyaretoday.,Rewritethesentencesintosimplesentences.,1.AreyoucertainthatTomissatisfiedwiththeplan?,2.IdontknowwhichoneIcanbuy.,Idontknowwhichonetobuy.,AreyoucertainaboutTomssatisfactionwiththeplan?,3.IheardshewassinginginEnglish.,IheardhersinginginEnglish.,Rewritethesentencesintosimplesentences.,4.ThephotosremindmethatItravelledtotheUKfiveyearsago.,5.DoyouunderstandwhatIsaid?,Doyouunderstandmywords?,Thepho