状语从句讲解ppt课件.ppt

状语从句1.时间状语从句（1）WhenIrecognizedthethiefwhen/asIpassedhim.
Whenhefinishedhislecture,peoplestoodupandapplauded.
IwaswalkingonthestreetwhenIcameacrossanoldfriend.
Wewereabouttosetoffwhenitbegantorain.
Hehadjustfinishedtheworkwhenthedoorbellrang.
Wewereonthepointofdrivingawaywhenthepolicemansignedustostop.
意思为既然或考虑到(原因状语从句)
Itwasfoolishofyoutotakeataxiwhenyoucouldeasilywalkthere.
Howcantheylearnanythingwhentheyspendalltheirsparetimewatchingtelevision?
Whydoyouwantanewjobwhenyouhavegotsuchagoodone?
Thereisnopoint（in）owningacarwhenwehavesogoodapublictransportsystem.
Whyusemetalwhenyoucanuseplastic?
Howcanhegetthepromotionwhenhisbossdislikeshim?whileAs时间状语从句（2）我什么都不会说，直到你让我说。

2.直到他回来，我们才开始工作。

3.他们一看到这张照片，就笑翻了。
Theylaughedassoonastheysawthepicture.
Theylaughedthemomenttheysawthepicture.
4.我刚一到家就开始下雨了。
HardlyhadIgothomewhenitbegantorain.
NosoonerhadIgothomethanitbegantorain.
5.他刚一上去车就发动了。
Hardlyhadhegotonitwhenthebusstarted.
Nosoonerhadhegotonitthanthebusstarted.
6.每当我听音乐，我就想起这事。
EverytimeIlistentomusic,I’llthinkofit.时间状语从句（3）我五年后才能回来。
ItwillbefiveyearsbeforeIcameback.
用不了多久他们就会互相了解了。
Itwillnotbelongbeforetheyunderstandeachother.
五天后他才回来的。
Itwasfivedaysbeforehecameback.
不久后敌人就被赶走了。
Itwasnotlongbeforetheenemywasdrivenoutoftheircountry.不久我们就动身去北方了。
Itwasnotlongbeforeweleftforthenorth.
再过一年你就毕业了。
Itwillbeayearbeforeyougraduate.
用不了多久我们就会知道实验的结果了。
Itwillnotbelongbeforeweknowtheresultoftheexperiment.
过了一段时间他们才意识到事情的真相。
Itwassometimebeforetheyrealizedthetruth.Timepassedquicklyandthreemonthswentbybeforesheknewit.
时间过得飞快，她不知不觉就在那里度过了三个月.
Healmostknockedmedownbeforehesawme.
他几乎把我撞倒才看到我。
Someonecalledmeupinthemiddleofthenight,buttheyhungupbeforeIcouldanswerthephone.
半夜里有人打来电话，我没来得及接电话就挂了。
Themostdestructivenaturaldisaster,tsunami,cameunexpectedlybeforethetouristscouldleavethecoast.since
自从…以来，一般主句用完成式或完成进行时：
IhaveneverseenhimsinceIgraduated.
I’vebeenlearningEnglishsinceGradeThreeinprimaryschool.
I’vebeenfeelingdownsinceIlostmyjob.Itisthreeyearssincehesmoked.
他不吸烟有三年了。
Itisthreeyears