Grammar1and2时间状语从句2.由theminute,themoment,theinstant,theday,theweek,theyear,thefirsttime,anytime,everytime,eachtime,thelasttime,allthetime,fromthetime,bythetime,immediately,instantly,directly等引导的时间状语从句。同学们列举一下我们所接触到的状语从句2>他来的那一天就访问了我。3>Weweretheretheweekitsnowedsoheavily.3.其中theminute,themoment,theinstant,thesecond,以及immediately,instantly,directly表达的意思一样,都是“一……就……”可以相互替换。e.g.Youmustshowthegentlemaninimmediatelyhecomes.翻译下列句子:你一按按钮,灯就会亮。他一出现,便一片沉寂。4.另外还要注意（一……就……）hardly…()when…()scarcely…when…nosooner…than…(放句首则倒装）1>我刚到他就给我打电话了。2>我们刚到火车站火车就走了。5.when,while,as引导的时间状语从句的区别。e.g.Whydoyouwantanewjobwhenyou’vegotsuchagoodone?Sorry,Iwasoutwhenyoucalledme.Strikewhiletheironishot.Thestudentstooknotesastheylistened.2>when从句的谓语动词可以在主句动词之前或之后发生或同时发生.而while和as从句的动词必须是和主句的动词同时发生。Whenhehadfinishedhishomework,hetookarest.WhenIgottotheairport,theguestshadleft.当主从句动作同时发生,且从句动作为延续性动词时,三者可互换。3>when还有“正在那时”通常用在以下句型中。beabouttodo…when(suddenly)…begoingtodo…when…bedoing…when…beonthepointofdoing…when…（正准备做…正在那时/突然间…）我正打算出去这时电话响。我正在读书这时有人敲门。4>as还有“因为”“作为”“随着”“一边…...一边......”5>在将来时的从句中常用when,且从句必须用一般现在时。YoushallborrowthebookwhenIhavefinishedreadingit.7>while还做并列连词“然而”表对比。和从属连词“尽管”的意思,相当与though/although。Whileheisalittleboy,heknowsalot.I’mworkingwhilemywifeiswatchingTV.8>before——since1）他要三天后才能回来。Itwillbethreedaysbeforehereturns.Howlongwillitbebeforehereturns?2）姥姥已经和我们住了5年了。Ithasbeen5yearssincegrandmalivedwithus.Howlonghasitbeensincegrandmalivedwithus?–Washisfatherstrictwithhimwhenhewasatschool?--Yes.Hehadneverpraisedhim_____hebecameoneoftopstudentsinhisgrade.A.afterB.unlessC.untilD.when2.____youtoldme,Ihadnoideaofit.A.UntilB.WhenC.WhileD.As3.Itwasfoolishofyoutotakeataxi____youcouldeasilywalktherein5minutes.A.beforeB.tillC.sothatD.when.Underlinethecorrectformoftheverb.Whentheastronautsreturned/werereturningtoEarth,theygave/weregivingapressconference.2.Whilethefanswaited/werewaitinginthefrontofthehotel,thefilmstararrived/wasarrivingattheback.3