It-is-+-时间段-+-since句型复习.ppt

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1、Itis+时间段+since…“自从...以来有一段时间了”。Itis+时间点+when…“当……的时候时间是……”。Itis+时间段+before…“在……之前有一段时间”。Itwaspastoneo’clockwhenhecamein.Itwon’tbelongbeforetheyunderstandeachother.Itwaslongbeforeshecameback.Itwillbelongbeforewemeetagain.Itwillbefiveyearsbeforehemeetsyo

2、uagain.Itis/hasbeenfourdayssinceIcaughtacold.Itis/hasbeentwoweekssincewemetlast.他哥哥入伍三年了。他哥哥退伍三年了.他病了两星期了。他病愈两星期了。他们结婚到现在已经十年了。他到这儿已经二十分钟了。。不久后我们就能做好旅行的准备工作了。三年以后我们才能再次相见。一个小时以后他才完成了工作。他完成工作（到现在）已经一个小时了。他在这儿待了约有十分钟。练一练：1.Hewentabroadin1997andhasneverco

3、meback.Itiselevenyearssincehe____thecompanyathome.A.takeschargeofB.tookchargeofC.isinchargeofD.wasinchargeof2.Theyaskedmetohaveadrinkwiththem.IsaiditwasnineyearssinceI______agooddrink.A.enjoyedB.wasenjoyingC.hadenjoyedD.hadbeenenjoying3.Itwasaboutmidni

4、ght_________wefoundthelostchild,cryingunderatree.A.thatB.untilC.whenD.where4.Itwassixdaysago_________Ispoketoyouaboutthismatter.A.thatB.unlessC.sinceD.until5.Itwasten_________hestoodataunt’sdoorandrangthebell.A.whenB.untilC.sinceD.that6.Ithinkitwon’tbe

5、long_________theyunderstandeachother.A.whenB.untilC.sinceD.before7.Itwasevening____wereachedthelittletownofWinchester.(天津卷)A.thatB.untilC.sinceD.before8.---DidJackcomebackearlylastnight?---Yes.Itwasnotyeteighto’clock________hearrivedhome.(福建卷)A.beforeB

6、.whenC.thatD.until9.It______longbeforewe_______theresultoftheexperiment.(上海春)A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;know10.Asisreported,itis100years_______QinghuaUniversitywasfounded.(2011四川卷)A.whenB.beforeC.afterD.since