现在完成时用ppt课件.ppt

Thepresentperfecttense,现在完成时,1,1.过去某一时间点发生的动作对现在产生影响。,功能：,2,2.过去某一时间点发生的动作持续到现在或还将持续下去。,3,Thepresentperfecttense,助动词（可以帮助构成肯定、疑问和否定句）,4,1.Hehascleanedhisroom.(写一个一般疑问句）,Hashecleanedhisroom?,2.ShehaslivedinLondonforfouryears.(划线部分提问）,HowlonghasshelivedinLondon?,5,3.HehasbeentoChina,_?（写出反义疑问句部分）,hasnthe,4.Theyhavecomebackfromwork.(写否定句）,Theyhaventcomebackfromwork.,6,WhatarethekeywordsforthePresentPerfectTense?,7,A:_yourbrother_hishomeworkyet?(finish)B:Yes,hesalreadydoneit.,Keywords,Hasfinished,yet,already,注意：already用于肯定句，yet用于疑问句和否定句中,8,A:_youever_tothepark?(be)B:No,never.,Keywords,Havebeen,yet,already,ever,never,注意：ever曾经用于疑问句中never从不带有否定意义,9,I_just_thedesk,youcantakeittoyourclassroom.(mend),Keywords,havemended,yet,ever,never,just,already,Just刚刚与现在完成时连用一般置句中Justnow刚才与一般过去时连用,10,Tom_inthefactorysinceheleftschooltenyearsago.(work),Keywords,hasworked,yet,ever,never,since,already,since后面带过去时间或有一般过去时的句子,11,A:Howlong_you_inthisschool?(teach)B:For6years.,Keywords,havetaught,yet,ever,never,since,for,already,+一段时间,12,We_only_100treessofar.(answer),Keywords,haveplanted,yet,ever,never,since,for,just,already,sofar,到目前为止,13,Keywords,yet,ever,never,since,for,just,before,already,sofar,inthepast10years,twice,也可以是其他表示次数的词,howlong,14,Someverbscantoftenbeusedwithfororsince,15,Pleasepointoutanymistakesandcorrect,Shehasboughtthecomputerfortwoyears.,had,16,Pleasepointoutanymistakesandcorrect,HowlonghaveyoucometotheUnitedStates？,beenin,17,Pleasepointoutanymistakesandcorrect,AnnhasgonetoChinasincethreemonthsago.,beenin,18,Pleasepointoutanymistakesandcorrect,Mybrotherhasjoinedthearmyforfiveyears.,beenin,beenasoldier,19,Pleasepointoutanymistakesandcorrect,IhaveleftShanghaifor3days.,beenawayfor3days.,20,Pleasepointoutanymistakesandcorrect,Ihaveborrowedthedictionarysince3daysago.,kept,21,Pleasepointoutanymistakesandcorrect,Thefilmhasbegunfor10minutes.,beenon,22,Pleasepointoutanymistakesandcorrect,Theconcerthasfinishedforhalfanhour.,beenover,23,Pleasepointoutanymistakesandcorrect,Hisdoghasdiedfortwoyears.,beendead,24,canyoudistinguish?,去过某地已经回来常与ever,never,once,twice,连用,一直留在某地与for/since连用用howlong提问,去了某地还没回来不与只用于第三人称,Hersister_Australia,Sheleftthismorning.,hasgoneto,25,canyoudistinguish?,去过常与ever,never,once,twice,连用,在与时间段连用用howlong提问,去了说话时某人不在只用于第三人称,A:WhereisBob?B:He_Japanwithhissister.,hasgoneto,26,canyoudistinguish?,去过常与ever,never,once,twice,连用,在与时间段连用用howlong提问,去了说话时某人不在只用于第三人称,A:Howlong_you_China?B:I_herefor3years.,havebeen,havebeenin,27,canyoudistinguish?,去过常与ever,never,once,twice,连用,在与时间段连用用howlong提问,去了说话时某人不在只用于第三人称,A:_youever_thecity?B:No,never.,Havebeento,28,Thepasttenseorthepresentperfecttense,know,haveknown,knew,29,Thepasttenseorthepresentperfecttense,saw,have,lost,30,Thepasttenseorthepresentperfecttense,have,did,move,lived,31,Thepasttenseorthepresentperfecttense,did,hasfinished,see,saw,32,EXERCISE,He_(work)inourschoolforoneyear.He_(come)toourschoollastyear/in2002.They_(cook)thesupperalready.They_(cook)thesupperhalfanhourago.,hasworked,came,havecooked,cooked,33,2.Thefamouswriter_onenewbookinthepasttwoyear.iswriting.waswriting.wrote.haswritten,3.Ourcountry_alotsofar.Yes.Ihopeitwillbeeven_.haschanged;well.changed;good.haschanged;better.changed;better,4.HarryPotterisaverynicefilm.I_ittwice.willsee.haveseen.saw.see,1.HaveyoumetMrLi_？.justB.ago.before.amomentago,C,34,5.ThesefarmershavebeentotheUnitedStates.Really?Wh