It is + 时间段 + since句型复习

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”。1.Itwaspastoneo’clockwhenhecamein.2.Itwon’tbelongbeforetheyunderstandeachother.3.Itwaslongbeforeshecameback.4.Itwillbelongbeforewemeetagain.5.Itwillbefiveyearsbeforehemeetsyouagain.6.Itis/hasbeenfourdayssinceIcaughtacold.7.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。•。1.不久后我们就能做好旅行的准备工作了。2.三年以后我们才能再次相见。3.一个小时以后他才完成了工作。4.他完成工作（到现在）已经一个小时了。5.他在这儿待了约有十分钟。•练一练：•1.Hewentabroadin1997andhasnevercomeback.Itiselevenyearssincehe____thecompanyathome.•A.takeschargeofB.tookchargeof•C.isinchargeofD.wasinchargeof••2.Theyaskedmetohaveadrinkwiththem.IsaiditwasnineyearssinceI______agooddrink.•A.enjoyedB.wasenjoying•C.hadenjoyedD.hadbeenenjoying••3.Itwasaboutmidnight_________wefoundthelostchild,cryingunderatree.•A.thatB.untilC.whenD.where•4.Itwassixdaysago_________Ispoketoyouaboutthismatter.•A.thatB.unlessC.sinceD.until•5.Itwasten_________hestoodataunt’sdoorandrangthebell.•A.whenB.untilC.sinceD.that•6.Ithinkitwon’tbelong_________theyunderstandeachother.•A.whenB.untilC.sinceD.before•7.Itwasevening____wereachedthelittletownofWinchester.(天津卷)•A.thatB.untilC.sinceD.before•8.---DidJackcomebackearlylastnight?•---Yes.Itwasnotyeteighto’clock________hearrivedhome.(福建卷)•A.beforeB.whenC.thatD.until•9.It______longbeforewe_______theresultoftheexperiment.(上海春)•A.willnotbe;willknow•B.is;willknow•C.willnotbe;knowD.is;know•10.Asisreported,itis100years_______QinghuaUniversitywasfounded.(2011四川卷)•A.whenB.beforeC.afterD.since