since-before-when-after等的区别.doc

(完整word版)since,before,when,after等的区别(完整word版)since,before,when,after等的区别(完整word版)since,before,when,after等的区别高考英语常考句式—-itis+时间+since(before，when）…请注意以下三个句式的区别和意思上的差异（其中的is根据情况可以有其他时态形式）:Itis+时间段+since…的意思是“自从……以来有一段时间了”。Itis+时间点+when…的意思是“当……的时候时间是……”。Itis+时间段+before…的意思是“在……之前有一段时间”。请看以下用例：It’stenyearssincetheygotmarried.他们结婚到现在已经十年了。Itwaspastoneo’clockwhenhecamein.他回来时已经一点多了。Itwon’tbelongbeforetheyunderstandeachother。过不了多久他们就会互相了解的。有时翻译可以比较灵活:It'salongtimesinceImetyoulast。好久不见了.（直译:自上次见到你以来有很长一段时间了。）It’saboutthreeyearssinceIlastplayedbasketball.我差不多有三年没有打篮球了.(直译：自从我上次打篮球以来已差不多有三年了。)请看有关高考题（答案为DDBCDC):1.Thatwasreallyasplendidevening。It'syears_________Ienjoyedmyselfsomuch.(安徽卷）A.whenB。thatC.beforeD.since2。Itwassometime_________werealizedthetruth.（山东卷）A。whenB.untilC.sinceD.before3。-DidJackcomebackearlylastnight？—Yes.Itwasnotyeteighto'clock_________hearrivedhome.(福建卷）A.beforeB.whenC.thatD.until4.Scientistssayitmaybefiveorsixyears_________itispossibletotestthismedicineonhumanpatients.（福建卷)A.sinceB.afterC。beforeD.when5。ItwaseveningwereachedthelittletownofWinchester。（天津卷)A.thatB。untilC.sinceD.before6。It_________longbeforewe_________theresultoftheexperiment.（上海春)A。willnotbe;willknowB.is；willknowC.willnotbe;knowD。is;know【全真模拟训练】1.Itwasaboutmidnight_________wefoundthelostchild,cryingunderatree。A.thatB.untilC.whenD.where2。It’ssometime_________Ihavespokentoyouaboutthismatter。A。thatB.unlessC。sinceD.until3。Itwasten_________hestoodataunt'sdoorandrangthebell。A。whenB.untilC。sinceD。that4.Ithinkitwon’tbelong_________theyunderstandeachother。A.whenB。untilC。sinceD。before5.HowpleasedIamtonight!It'syears_________wehadsogreatatimetogether.A。whenB.thatC。beforeD.since6。Itwassometime_________werealizedhowimportantthematteris.A.whenB.untilC.sinceD.before7。-Didyoucomehomeverylatelastnight？-No。Itwasjusthalfpastseven_________Iappearedbeforemyparents.A。thatB。whenC。untilD。since8.Howtimefiles！Itseemslikeyears_________Ilastsawyou。A.whenB.thatC。sinceD。before9.It'smorethanhalfacentury_________thePeople