现在完成时课件.ppt

文档介绍：ThePresentPerfectTenseZiyanyurunMiddleSchoolbyLili构成have/has+动词过去分词过去分词(pp)其变化方法和动词过去式基本相同。有部分不同,需要记好。chantAAAcut---cut---cutput---put---putread---read---readABBbuy---bought---boughtleave---left---leftkeep---kept---e---came---e---became---erun---ran---runABCdo---did---donego---went---goneget---got---gottenplayedplayedplaystoppedstoppedstopwas,beenbecame,edid,donewent,goneran,rundrove,drivenam,edogorundrivebuytakebought,boughttook,,beencut,cutate,eatenkept,keptwrote,ebringmakecarriedcarriedcarrylivedlivedlivebrought,broughtmade,*present(now)futurepast现在完成时(presentperfecttense)现在完成时的用法(presentperfecttense)。(动作已经结束了,可用一切动词)这种用法常与already,yet,just,ever,never,before,inthelast…::常用于否定句,:放于句末。标志词Haveyouseenthismovieyet?yet,already,beforeYes,,,Ihaven’t.=?(find-found)在过去的几年里他们在这个城市建了许多房子.(build-built).(leave-left)Haveyoufoundyourbookyet?(now)futurepast现在完成时用法(presentperfecttense)2)现在完成时表示从过去一直持续到现在的动作或状态。(这一标志所用动词必须是延续性动词)