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1、动词1.概念：①过去发生或已经完成的动作对现在造成的影响或结果，②或从过去已经开始，持续到现在的动作或状态。2.时间状语：①inthepastfewyears,overtheyears,sincethen,sofar,uptonow,②already,yet,never,ever,just,before,,③once,twiceetc.④since+过去的点时间/一般过去时从句。For+一段时间,3.基本结构：have/has+done（动词的过去分词v.pp）4.否定形式：have/has+not+done.5.一般疑问句：把have或has放于句首。6.反义疑问句：直
2、接用has/have进行反问7.注意：1).havebeento/havegoneto/havebeenin的区别havebeento+地点表示曾经去过某地，现人已返回。(once,twice….)havegoneto+地点表示人已去了某地，人还未返回。(whereissb?)havebeenin+地点表示在某地呆多长时间。（for…../since…..）2).与时间段连用时，短暂性动词应改为相应的延续性动词。Come/goto------beat/inleave----beawayfrombuy----haveborrow/lend-----keepopen---be
3、openclose---becloseddie---deadstart/begin----beonjoin—--bein/beamemberof/beasoldierbecome–bemakefriend---befriendgetup---beupfallasleep---beasleepcatchacold–haveacoldreach/get/arrive---stay/be4).现在完成时与一般过去时的区别现在完成时与现在有关的时态，他侧重于过去的动作对现在造成的影响。而一般过去时侧重于表示过去的动作与现在无关，若询问该动作发生的具体的时间时，只能用一般现在时。H
4、ashereturnedthelibrarybook?Yes,hehas.When____he_____(return)it?He____(return)ityesterdayafternoon.练习：填空.A.用already或yet1)Havetheytakendowntheoldpictures______?No,not___________.2)Mostofushavefinishedourcompositions________3)Hesaidhehadn’tvisitedtheexhibition________.B.用since或for1)Wehavelea
5、rnedfivelessons______thebeginningofthisterm.2)MrsLiaohasbeeninhospital______lastweek.3)Ihavestayedatmyaunt’s_____twoweeks.C.用havegone或havebeen1)Wherearetheboystudents?They_____totheschoolfactory.2)Isyourfatherin?No,he____toShenzhen._______heever______therebefore?Yes,he___thereseveraltimes
6、3)Theoldman____________inthatfactoryfortenyears.选择填空1.I_______theway.I________hereforquitemanyyears.A.knew…havelivedC.knew…liveC.know…havelivedD.know…live2._____youever_____America?Yes,Ihave.A.Have…gonetoB.Have…goneinC.Have…beentoD.Have…beenin3.Mybrother____collegeforoverthreeyears.A.hasg
7、onetoB.hasbeentoC.hasbeeninD.hasbeenat4.Bothhisparentslooksad.Maybethey_______what'shappenedtohim.A.knewB.haveknownC.mustknowD.willknow5.Hehas_______beentoShanghai,hashe?A.alreadyB.neverC.everD.still6.HaveyoumetMrLi______？A.justB.agoC.beforeD.amomentago7.Thefamouswr
