现在完成时态ThePresentPerfectTenseI.概念:现在完成时表示过去发生的动作对现在造成的影响与结果,或表示过去开始并持续到现在的动作或状态。现在完成时表示过去发生的动作对现在造成的影响与结果.常与already,never,ever,yet,just,recently,once….等状语连用。e.g.1.Ihavealreadyfinishedmyhomework.2.LiPinghasjusthadlunch.3.HehasnevervisitedtheGreatWall.4.---Haveyouboughtanyfruityet?---Yes,Ihave./No,Ihaven’t.II.结构:“have/has+过去分词”e.g.1.I____just___(have)twopiecesofbread.2.He_____already____(read)themagazine.havehadhasreadIII.句式变换:(a)否定句：在“have/has”后面加“not”。(注意：already→yet)1.Ihavefinishedmyhomework.2.LiPinghashadlunch.3.Ihavehadtwopiecesofbread.4.Hehasalreadyreadthemagazine.n’tn’tn’tHehasn’treadthemagazineyet.Ican’tplaycomputergamesnow,becauseIhaven’t…(b)一般疑问句：把“have/has”放在句首。注意：already→yetnever→ever1.Ihavefinishedmyhomework.2.LiPinghashadlunch.3.Hehasalreadyreadthemagazine.4.Tomhasneverseenthefilm.Haveyoufinishedyourhomework?HasLiPinghadlunch?Hashereadthebookyet?HasTomeverseenthefilm?1.--WhereisLiPing?--Hehasgonetothebank.(去了)2.--Howmanytimeshashebeenthere?(去过)--Twice.V.a.“have/hasbeento”(去过某地,已经回来,在说话者这儿.)1.IhavebeentoHongKong.2.HehasbeentotheGreatWall.b.“have/hasgoneto”(去某地,在路上或者在某地,不在说话者这儿,只用于第三人称.)e.g.1.HehasgonetoShanghai.2.TheyhavegonetothePeople’sSquare.3.Mr.Lihasgonetothebank.比较:HehasbeentoLondononce.HehasbeeninLondonfortwomonths.他去过伦敦一次.人已回来,不在伦敦.他在伦敦已2月.人还在伦敦.中考真题()1.I__already___thebedroom.Itisveryclean.A.will,cleanB.have,cleanedC.am,cleaningD./,cleaned()2.Mr.Smith____just_____dinner.Heisfull.A.will,haveB.has,hadC.is,havingD.had,had()3.---WhereisJane?---She___work.A.hasgoneB.hasgonetoC.hasbeenD.hasbeento()4.He_____hishomeworkyet.A.isn’tdoingB.won’tdoC.didn’tdoD.hasn’tdone()5.Greatchanges___inthepastfewyears.A.aretakingplaceB.willtakeplaceC.tookplaceD.havetakenplace()6.TheBrowns____Shanghaifor2days.A.havegonetoB.havebeenC.havebeentoD.havebeenin
