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1、现在完成时的构成和用法现在完成时v1.概念：过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。v2.时间状语：yet,already,just,never,ever,sofar,bynow,since+时间点，for+时间段，recently,lately,inthepastfewyears,etc.v3.基本结构：主语+have/has+p.p（过去分词）+其他v4.否定形式：主语+have/has+not+p.p（过去分词）+其他v5.一般疑问句：Have/Has+主语+过去分词+其他v6.特殊疑问句：（疑问词+）Have/Has+主语+过
2、去分词+其他？v7.例句：I'vewrittenanarticle.Thecountrysidehaschangedalotinthepastfewyears.v8.havebeen与havegone的用法比较havebeentoaplace意思是“到过，去过”，表示曾经到过某处，但现在人不在那儿。havegoneto意思是“去了”，表示已经去了某地，现在人可能在去的途中或已在那儿了。HassheeverbeentoNanjing?她曾去过南京吗？Youhaveneverbeenthere,haveyou?你以前从未去过那儿，是吗？IhavebeentoGuiling,Iwentth
3、erelastyear.我去过桂林，我去年去的。ShehasgonetoNanjing.她已经去南京了。现在完成时专项练习一．单项选择。1.–WhereisMr.Liu?-----He_______thelibrary.A.hasbeentoB.hasgonetoC.hasbeenin2.Thestudentshavecleanedtheclassroom,________?A.sotheyB.don’ttheyC.havetheyD.haven’tthey3.IlikeHainan.I________therethreetimes.A.wentB.goC.havebeenD.hav
4、egone4.WecametoNanjingthreeyearsago,sowe________hereforthreeyears.A.havebeentoB.havebeeninC.havebeenD.havegone5.-Howlong______you_______yourdictionary?-Abouttwomonths.A.did;buyB.have;getC.have;hadD.have;bought6.Hetellsmehe________Chinaforoverfiveyears.A.hasbeenB.hasbeeninC.hasbeentoD.hasgoneto7
5、.______hasMrWhitebeenamemberofGreenerChinasincehe_______toChina?A.Howsoon,comesB.Howoften,gotC.Howlong,cameD.Howfar,arrived8.Hisuncle________formorethan9years.A.hascomehereB.hasstartedtoworkC.haslivedthereD.haslefttheuniversity二、按要求改写句子。9.Hehasneversurfed,__________(改成反意疑问句）?10.Theyhavebeenhere
6、since2000.(对划线部分提问)__________havetheybeenhere?11.Theoldman_________lastyear.He________forayear.(die)12.Thisfactoryopenedtwentyyearsago.(改写句子，句意不变)Thisfactory_________fortwentyyears.13.MissGaoleftanhourago.（改写句子，句意不变）MissGao___________an__________hourago.9.TheGreenFamilymovedtoFrancetwoyearsago.
7、（改写句子，句意不变）_________twoyears________theGreenfamilymovedtoFrance.10.Thebushasarrivedhere.Itarrivedtenminutesago.（改写句子，句意不变）_____________________________________________.三、动词填空：1._____you________(clean)theroom?Yes,we__________(do)th
