现在完成 过去完成时.ppt

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1、Chapter12PresentperfectivePastperfectiveFormationofperfectiveAffirmativeformNegativeformQuestionsentenceWH-question......have/has,had+done......have/has,had+not+doneHave/Has,Had.......done?WH-wordhave/has,had......done?Whatarethedifferentformationsofthese

2、ntence:Wehavewonthefootballmatch.UsesofPresentPerfectiveTimewhentheactionhappenedIknewhimin1997.（过去的动作）TheinfluenceorresultofthepresentWearegoodfriends.(现在的情况）PastPresentfinisheduseunfinisheduse过去某时发生的行为对主语目前产生的影响。即用过去发生的某个行为来说明现在的某种情况,把过去的动作和现在联系起来并着眼于现在

3、。Wehaveknowneachothersince1997.FinisheduseandunfinisheduseFinisheduse:Thepresentresultofapasteventstilloperativeatthepresentmoment.Hehasclosedthewindow.(Thewindowisclosed./Itissohotnow.....)Unfinisheduse:Anactionorstateextendsoveraperiodlastinguptothepres

4、entmoment,posiblyextendingintothefutureaswell.IhavebeeninZhongkaisince2008.(IamnowinZhongkai,andmaybeallmylife.)ThefinisheduseTheunfinisheduse延续性动词MichaelJacksonhasbeendeadsince2009.不与表示一段时间的状语连用,常与不确定的时间always,yet，before，recently等)、频度时间状语(如：never，ever，on

5、ce等)Ihaveboughtaskirtrecently.与表示一段时间的状语连用(since，for引导）Ihavehadtheskirtsincetwodaysago.瞬间动词，非延续性动词MichaelJacsonhasalreadydied."Since"and"For"1.Wehaven'tseeneachother_______2000.2.HisfatherhasbeenintheParty______10yearsago.3.Thefilmhasbeenon_____20minutes.

6、4.MrGreenhasworkedhere____hecametoChina.5.Hisgrandparentshavebeendead____severalyears.1.since2.since3.for4.since5.forfor+时间段since+时间点/从句/时间段...agoTrueorfalse我买了这块手表五年了。1.Ihaveboughtthiswatchforfiveyears.2.Ihavehadthiswatchforfiveyears.这位老人已经到教堂有两个小时了。Theo

7、ldmanhasarrivedatthechurchfortwohours.Theoldmanhasbeenatthechurchfortwohours/sincetwohoursago.FTFT非延续性动词与延续性动词的转换borrowbuycome/arrivebecomestart/beginstop/finishdiejoinopen/closekeephavebein/at+地点bebeonbeoverbedeadbeamemberofbein+组织名称beopen/closedbe+adj/a

8、dvCorrectingthemistakes1.HehasbeentoBeijingforover2years.2.Hehasjoinedthearmysince2001.3.Ihaveborrowedthebookfor2weeks.4.Howlonghaveyouboughtthebike?5.Ihavebeenlikethissincetwodays.6.MyfatherhasleftforShanghaifortwo