现在完成时 初中英语

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1、1.Heisnotonlyagoodteacher,butalsoagoodfriendforhisstudents.2.Iamtiredofdoinghomework.3.Thisbookisworthingreading.4.Wouldyoumindopeningthewindow?5.Ilearneddrawingfrommygrandfather.6.Theboypickupthehatfortheoldman.PresentPerfectTenseIhavejustreceivedaletterfrommybrother,Tim.HeisinAus

2、tralia.Hehasbeenthereforsixmonths.Timisanengineer.HeisworkingforabigfirmandhehasalreadyvisitedagreatnumberofdifferentplacesinAustralia.HehasjustboughtanAustraliancarandhasgonetoAlicesprings,asmalltowninthecentreofAustralia.HewillsoonvisitDarwin.Fromthere,hewillflytoPerth.Mybrotherh

3、asneverbeenabroadbefore,soheisfendingthistripveryexciting.现在完成时的构成have/has+过去分词（1）表示动作发生在过去某个不确定的时间，但对现在留下了某种影响和结果。-Haveyouhadlunchyet?-Yes,Ihave.I'vejusthadit.（2）表示从过去某一时刻开始一直持续到现在的动作或状态。Hehastaughtheresince1981Ihaven'tseenherforfouryears.现在完成时与一般过去时的区别Isawthisfilmyesterday.Ihaves

4、eenthisfilm.ShehasreturnedfromParis.Shereturnedyesterday.Hehasbeenintheclubforthreeyears.HejoinedtheLeaguethreeyearsago.1.ShehasbeentoShanghai.2.Shehasn'tseenthenewmovie.3.Jimhasfinishedhishomework,soheisfreenow.4.Hereceivedaletteryesterday.Wherehashegonethesedays?