现在完成时现在完成时PresentPerfectTensePresentPerfectTense现在完成时的构成现在完成时的构成::Have/has+Have/has+动词过去分词动词过去分词1
I_____________(call)myauntthreetimestodaybutnobodyanswered
Internet______________(bring)usmuchmoreinformationaboutoutsideworld
TheTitanicisaveryinterestingfilm
I__________(see)ittwicealready
Tom__________(make)alotoffriendsinChina
havecalledhasbroughthaveseenhasmade1
表示过去发生的动作对现在造成的影响或结果
already,ever,yet,just,before,recently,thesedays,uptonow,inthelastfewyears等
They___________________(完成)theproject
Themeeting_______________
(还没有开始)3
He____________(刚回来)backfromAmerica
现在完成时的用法(2个)havealreadyfinishedhasn’tbegunyet经常与下列词语连用hasjustcome2
表示过去发生的动作持续到了现在,可能继续发展下去,常与for或since引导的时间状语连用
Green_________(live)inGuangzhoufor30years
Maria__________(learn)Englishinthisschoolsince5yearsagohas