M2u3语法：过去完成时注意：过去完成时与现在完成时，一般过去时的区别。?过去完成时(haddone)?用法：表示在过去的某个时间或动作以前已经发生的动作或已经存在的状态。就是我们常说的：表示"过去的过去的动作或状态"。Untilthen,hisfamilyhadn'theardfromhimforsixmonths.Upontheirenteringthetomb,Carter’sluckypetbird,whichhehadleftinCairo,wasswallowedbyasnake.现在完成时(havedone)用法：1.）动作发生在过去与现在有联系ThedisappearanceofJustinhasmadeKellyveryunhappy.2.）动作发生在过去，持续到现在Ihaven’tseenJustinsincelastFridaynight3.）常与次数连用SomevillagerssaythattheyhaveseenUFOsmanytimes.4.）现在完成时经常与下列词连用如：最近:recently;lately曾经：ever,从不：never,已经：already,yet;自从：since;刚刚：just;for+一段时间；since+点时间；直到现在：tonow,sofar;在过去的几年里：intheuppast/lastfewyears.?一般过去时?用法：表示过去某个时间发生的动作或情况。?注意时间状语的搭配?一般过去时的时间状语应该是表示过去某个时间的词或词组，yesterday,last如：month,in1999,twodaysago等.练习：1.用括号内所给词的适当形式填空：??1）Cartersaidthatthey______________________(hide)theentrancetothetomb.2）I_________________(do)myhomeworkthismorningbeforeIwenttothemuseum.3）ThenafewmonthsafterCarter_______________________(open)thetomb,LordCarnarvonfellillwithafeveranddied.4）HowardCarterisoneofthemostfamousexplorerstheworld__________________.(know).5）We______________(plant)thousandsoftreesinthepastfewyears.6）Upontheirenteringthetomb,Carter’sluckypetbird,whichhe__________(leave)inCairo,wasswallowedbyasnake.2.单项选择：1)ThisisthefirsttimeI______thiskindofmovie.A.seeB.sawC.haveseenD.hadseen2)Hetoldusthathe________usaletterassoonaspossible.A.hassentB.sentC.hadsentD.wouldsend3)Howlong_________you________thisbook？A.have;hadB.had;hadC.have;boughtD.had;bought4)Whentheoldman_____towalkbacktohishouse,thesun_____itselfbehindthemountain.A.started;hadhiddenB.hadstarted;hadhiddenC.hadstarted;washidingD.wasstarting;hid5)Hehurriedtotheclassroomonlytofindhisbatstill_____whereit___________.A.lay;waslaidB.lain;hasbeenlaidC.lay;hadbeenlaidD.waslaid;hadbeenlying6)Morepatients________inhospitalthisyearthanlastyear.A.treatedB.havebeentreatedC.havetreatedD.hadbeentreated7)Darling,where_______youputmycellphoneafteryouusedit?I____itforhalfanhour.A.have;havelookedforB.did;lookforC.did;havelookedforD.have