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1、 动词时态1.从句中的时态2.句型转换主将从现when/while引导的时间状语从句宾语从句中的时态谓语动词的形式变化助动词归纳01从句中的时态主将从现时间从属连词条件从属连词遵循“主将从现”的连词4321untilas soon asnot.untilwhen主将从现时间从属连词1.ImgoingtobeadoctorwhenI_(grow)up.2.I_(give)thenotetohimassoonasschoolisover.growwillgive主将从现（练一练）3.Wellwaitutillyou_(make)upyourmind.4.Dontopenthedooruntilth
2、ebus_(stop).takestops主将从现（练一练）21unlessif主将从现条件从属连词1.Ifyourdaughtercomes,I_youup.A.callsB.callC.calledD.willcall2.Ifthere_nobuyingandsellingofanimals,there_nokillinginnature.A.is;willbeB.willbe;willbeC.is;isD.willbe;isDA主将从现（练一练）主将从现“主将(祈/情)从现”的本质Dontcrosstheroaduntilthelightturnsgreen.Ioftengetupass
3、oonasthesunbeginstocomethroughmywindow.1.主句的动作和从句的动作，都还没发生。2.从句的动作先发生，主句的动作后发生主将从现（练一练）1.Shewillcallyouupassoonasshe_(finish)herhomework.2.She_(stay)athomeuntilhermothercomesback.finisheswillstay3.We_(show)theforeignfriendsaroundBeijingwhentheygethere.4.WhenIgothome,mygrandmother_(make)cakes.willsho
4、w主将从现（练一练）1.WhenIcamein,theywereplayinggamesintheroom.When/Whileweweretaking,theteachercamein,when2.Oneday,whileIwassittinginmycarinaparkingarea,Inoticedayoungboyinfrontofmycar.Yesterdaymorning,whileIwasdoingmyhomework,mybrotherwaslisteningtotheradio,whilewhen和while引导的时间状语从句when和while引导的时间状语从句1.只能用w
5、hen的情况：从句为非延续性动词时2.只能用while的情况：主从句都为延续性动词时3.既能用when又能用while的情况：主句为非延续性动词，从句为延续性动词时拓展Someboyslikeswimminginsummerwhileotherslikefishing.while做连词，还可以为“然而”when和while引导的时间状语从句（练一练）1.Davidisatennisplayer.He_toplaytenniswhenhewassixyearsold.A.beginsB.willbeginC.beganD.hasbegun2._didtherainstormcome,Mr.Liu
6、?While we _ a chemistry lessnon yesterdayafternoon.A.When;havehadB.When;werehavingC.While;arehavingD.While;haveCB宾语从句中的时态Iknowhellcomeinafewdays.Iknowhecamehereyesterday.Hesaidhecamehereyesterday.Theysaidthattheearthisround.时态巧记：主现从任意主过从也过从真用一现宾语从句中的时态（练一练）1.Noonecanbesure_inamillionyears.A.whatmanl
7、ookslikeB.whatmanlookedlikeC.whatmanwilllooklikeD.whatmanlooklikeC宾语从句中的时态（练一练）2.Couldyoupleasetellme_?A.whydoestheearthgoaroundthesunB.whytheearthgoesaroundthesunC.whytheearthwentaroundthesunD.whattheearthgoesaroundthesunB02句型转换句型转换谓语动词形式变化谓语动词形式变化他总是吃你的豆腐。他昨晚吃了你的豆腐。他今晚吃你的豆腐。他正在吃你的豆腐。那时候他正在吃你的豆腐。他已
8、经吃过你的豆腐。Healwayseatsyourtofu.Heateyourtofulastnight.Hewilleatyourtofuthisevening.Heiseatingyourtofu.Hewaseatingyourtofuatthattime.Hehasalreadyeatenyourtofu.谓语动词形式变化谓语动词形式变化他总是吃你的豆腐。他昨晚吃了你的豆腐。他今晚吃你的豆腐。他正在吃你的豆腐。那时候他正在吃你的豆腐。他已经吃过你的豆腐。Healwayseatsyourtofu.Heateyourtofulastnight.Hewilleatyourtofuthiseven
9、ing.Heiseatingyourtofu.Hewaseatingyourtofuatthattime.Hehasalreadyeatenyourtofu.谓语动词形式变化谓语动词形式变化汉语不变态英语总变态学习时态=_学习谓语动词的学习谓语动词的变化变化形式形式“be动词动词”型型am/is/arewas/werebe going toam/is/arewas/were doingbe动词notbe动词“助动词助动词”型型do/doesdidwill dohave donecan/must.dodo/does/didnotwilldo/does/didnothavenot情态动词notdo
10、/does/didwillhave情态动词助动词归纳助动词归纳am/is/are/was/werebe doingdo/does/diddont/doesnt/didnt.Do/Does/Did.?have/hashave/has donewill/wouldwill/would docan/could/may/mightcan/could/may/might do谓语动词形式变化谓语动词形式变化（练一练练一练）1.My grandfather was watering some flowers at this timeyesterday.(变为否定句)Mygrandfather_wateri
11、ng_flowersatthistimeyesterday.2.Ileftmybookinthelab.（改为否定句）I_mybookinthelab.wasnt anydidnt leave谓语动词形式变化谓语动词形式变化（练一练练一练）3.Thatgirlwasmakingacake.(改为一般疑问句)_thatgirl_acake?4.Myfathergetsupearly.(改为一般疑问句)_yourfather_early?Was makingDoes get up谓语动词形式变化谓语动词形式变化（练一练练一练）5.Kateusuallygoestoherofficebybike.（对划线部分提问）_Kateusually_toheroffice?6.Theywereseeingafilmatfiveyesterday.(对画线部分提问)_werethey_atfiveyesterday?How does go What doingSeeyou