九年级英语下册 Unit 4 Life on Mars Grammar课件 （新版）牛津版.ppt

unit4lifeonmarsgrammar usingadverbialclausesorsimplesentences neilarmstrongreceivedhisstudentpilot slicence becauseofthelowgravity withoutfood wateroroxygen whenhewas16 whenhewas16 attheageof16 peoplemightfloatinspace humanscannotsurvive becausethegravityislow becausethegravityislow ifthereisnofood wateroroxygen ifthereisnofood wateroroxygen 时间状语从句可借助介词短语转化为简单句 icouldswimwheniwaseightyearsold hewenthomeafterhefinishedhiswork 状语从句和简单句之间的转换 icouldswimattheageofeight hewenthomeafterfinishinghiswork because引导的原因状语从句用短语becauseof可转换成简单句 hewaslateforschoolbecauseitrainedheavily hewaslateforschoolbecauseoftheheavyrain 状语从句和简单句之间的转换 youcannotenterthecinemaifyoudon thaveaticket 状语从句和简单句之间的转换 youcannotenterthecinemawithoutaticket ifnot引导的条件状语从句可借助without短语转化为简单句 1 neilarmstrongtookhisfirstflightwhenhewasonlysix learningaboutouterspace 1 neilarmstrongtookhisfirstflightattheageofsix 2 yurigagarinbecamethefirstmantogointoouterspaceattheageof27 2 yurigagarinbecamethefirstmantogointoouterspacewhenhewas27 3 peoplemightmovetoanotherplanetinthefuturebecausethepopulationontheearthisincreasingrapidly 3 peoplemightmovetoanotherplanetinthefuturebecauseoftherapidlyincreasingpopulationontheearth 4 ifthereisnofreshfood mealswillnotbeastastyastheyaretoday 4 withoutfreshfood mealswillnotbeastastyastheyaretoday 5 itwouldbefunnytoplayfootballonmarsbecauseofthelowgravity 5 itwouldbefunnytoplayfootballonmarsbecausethegravityislow 6 withoutspecialboots youcannotwalkonmars 6 ifthereisnospecialboots youcannotwalkonmars sothat引导的目的状语从句可用 inorderto 或 soasto 转换为简单句 hegotupearlysothathecouldcatchtheearlybus hegotupearlyinorderto soastocatchtheearlybus 状语从句和简单句之间的转换 thishallissolargethatitcanhold2000people thishallislargeenoughtohold2000people sothat引导的目的状语从句可用inorderto或soasto转换为简单句 so that 引导的结果状语从句的可用enoughto结构转换为简单句 usingobjectclausesorsimplesentences thesmellofthepillsremindsthemthatfoodontheearthistasty aretheysurethatspacetravelwillbeveryfast thesmellofthepillsremindsthemofthetastyfoodontheearth aretheysureaboutthefastspeedofspacetravel 可以用介词如of about等将宾语从句转换为简单句 changethesentencesintosimplesentences 1 areyoucertainthattomissatisfiedwiththeplan 2 idon tknowwhichoneicanbuy idon tknowwhichonetobuy areyoucertainabouttom ssatisfactionwiththeplan 3 iheardshewassinginginenglish iheardhersinginginenglish 4 thephotosremindmethatihavetravelledtotheuk thephotosremindmeofmytriptotheuk 5 doyouunderstandwhatisaid doyouunderstandmywords 1 areyouaware distance 2 doscientistsagree possibility 3 havetheythought problem 4 areyouaware transport 5 iwonder number 6 ithinkpeopleshouldknow differences ofthedistancebetweenmarsandthesun wihthepossibilityoflivingonmarsforhumans inthefuture abouttheproblemofthelowgravityonmars ofthetransportonmars aboutthenumberofpeoplewhowouldliketomoveto thedifferencesbetweenlifeonmars andthatontheearth mars abouttheplanetmars usingdefiningrelativeclausesorsimplesentences peoplemightliveinhouseswhichhavehugecomfortablerooms onmarsyoumightseepeoplewhowearspecialboots peoplemightliveinhouseswithhugecomfortablerooms onmarsyoumightseepeopleinspecialboots 可以用介词如with in等将定语从句转换为简单句 marsisaplanetanenvironmentsimilartothatoftheearth 2 astronautsspacesuitsandhelmetsmightstayonmarsforhours 3 itisdifficulttobreatheonaplanetmuchthinnerairthanthatontheearth 4 onmarstheremightbepeopleairtanksontheirbacks curiousaboutmars with thathas whowear in thathas with with whocarry thathas whowear thathas whocarry changethesentencesintosimplesentences 1 thegirlwhoiswearingahatislucyking 2 iprefertostayinahotelroomwhichhasaseaview iprefertostayinahotelroomwithaseaview thegirlwithahatislucyking 3 themanwhowearsablueshirtisourenglishteacher themaninablueshirtisourenglishteacher 4 doyouknowthegirlwhoisholdingtwobooksinherhand doyouknowthegirlwithtwobooksinherhand 5 wesawtheglassesthatwereonthetablefalloffontothefloor wesawtheglassesonthetablefalloffontothefloor dearaliens humansarethinkingaboutmovingtoanotherplanetbecausethepollutionontheearthisveryserious manypeopledonotdoubtthatlifeonmarswouldbeveryinteresting butiamnotsure wecouldnotplayfootballonmarsbecauseofthelowgravity lifewouldbeboringformeificouldnotplayfootball maybethisproblemcouldbesolvedbybuildingindoorplaygroundswhichhavethesamefootballfieldsasthoseontheearth bytheway wouldstrangersbewelcome ihopetohearfromyousoon simon dearaliens humansarethinkingaboutmovingtoanotherplanetbecausethepollutionontheearthisveryserious manypeopledonotdoubtthatlifeonmarswouldbeveryinteresting butiamnotsure wecouldnotplayfootballonmarsbecauseofthelowgravity lifewouldbeboringformeificouldnotplayfootball maybethisproblemcouldbesolvedbybuildingindoorplaygroundswhichhavethesamefootballfieldsasthoseontheearth bytheway wouldstrangersbewelcome ihopetohearfromyousoon simon becauseoftheseriouspollutionontheear