現(xiàn)在完成時(shí)公開課課件.ppt

,專項(xiàng)復(fù)習(xí)之？,Unit14Haveyoupackedyet?,現(xiàn)在完成時(shí)ThePresentPerfectTense,滑縣八里營鄉(xiāng)初級中學(xué)黃利英,Studyingaims,1.現(xiàn)在完成時(shí)的構(gòu)成2.現(xiàn)在完成時(shí)的主要用法及相關(guān)的時(shí)間狀語3.短暫性動詞與時(shí)間段的關(guān)系4.havebeen與havegone比較5.與一般過去時(shí)的用法比較,夏天還會遠(yuǎn)嗎?willitstillbefarinsummer?,春天已經(jīng)來了,Springhasalreadycome,現(xiàn)在完成時(shí)態(tài),Springhasalreadycome.,一)構(gòu)成:,have/has+動詞過去分詞,Thepresentperfecttense,助動詞（可以幫助構(gòu)成肯定、疑問和否定句）,1.Hehascleanedhisroom.(寫一個一般疑問句）,Hashecleanedhisroom?,2.ShehaslivedinLondonforfouryears.(劃線部分提問）,HowlonghasshelivedinLondon?,3.HehasbeentoChina,_?（寫出反義疑問句部分）,hasnthe,4.Theyhavecomebackfromwork.(寫否定句）,Theyhaventcomebackfromwork.,(一)表示過去發(fā)生的動作或事情對現(xiàn)在的影響和產(chǎn)生的結(jié)果.它強(qiáng)調(diào)的是過去的動作同現(xiàn)在的聯(lián)系.常用的時(shí)間狀語有already,yet,ever,never,just,before等.,現(xiàn)在完成時(shí)的主要用法,A:_yourbrother_hishomeworkyet?(finish)B:Yes,hesalreadydoneit.,Keywords,Hasfinished,yet,already,注意：already用于肯定句，yet用于疑問句和否定句中,A:_youever_tothepark?(be)B:No,never.,Keywords,Havebeen,yet,already,ever,never,注意：ever曾經(jīng)用于疑問句中never從不帶有否定意義,I_just_thedesk,youcantakeittoyourclassroom.(mend),Keywords,havemended,yet,ever,never,just,already,Just剛剛與現(xiàn)在完成時(shí)連用一般置句中Justnow剛才與一般過去時(shí)連用,(二)表示一個從過去開始,一直持續(xù)到現(xiàn)在,有可能繼續(xù)下去的動作或狀態(tài).通常和for或since引導(dǎo)的時(shí)間狀語連用.,Tom_inthefactorysinceheleftschooltenyearsago.(work),Keywords,hasworked,since,since后面帶過去時(shí)間或有一般過去時(shí)的句子,A:Howlong_you_inthisschool?(teach)B:For6years.,Keywords,havetaught,since,for,+一段時(shí)間,We_only_100treessofar.(plant),Keywords,haveplanted,sofar,到目前為止,Keywords,yet,ever,never,since,for,just,before,already,sofar,inthepast10years,twice,也可以是其他表示次數(shù)的詞,howlong,Someverbscantoftenbeusedwithfororsince,Pleasepointoutanymistakesandcorrect,Shehasboughtthecomputerfortwoyears.,had,Pleasepointoutanymistakesandcorrect,HowlonghaveyoucometotheUnitedStates？,beenin,Pleasepointoutanymistakesandcorrect,AnnhasgonetoChinasincethreemonthsago.,beenin,Pleasepointoutanymistakesandcorrect,IhaveleftShanghaifor3days.,beenawayfor3days.,Pleasepointoutanymistakesandcorrect,Ihaveborrowedthedictionarysince3daysago.,kept,Pleasepointoutanymistakesandcorrect,Thefilmhasbegunfor10minutes.,beenon,Pleasepointoutanymistakesandcorrect,Theconcerthasfinishedforhalfanhour.,beenover,Pleasepointoutanymistakesandcorrect,Hisdoghasdiedfortwoyears.,beendead,canyoudistinguish?,去過某地已經(jīng)回來常與ever,never,once,twice,連用,一直留在某地與for/since連用用howlong提問,去了某地還沒回來只用于第三人稱,Hersister_Australia,Sheleftthismorning.,hasgoneto,canyoudistinguish?,去過常與ever,never,once,twice,連用,在與時(shí)間段連用用howlong提問,去了說話時(shí)某人不在只用于第三人稱,A:Howlong_you_China?B:I_herefor3years.,havebeen,havebeenin,canyoudistinguish?,去過常與ever,never,once,twice,連用,在與時(shí)間段連用用howlong提問,去了說話時(shí)某人不在只用于第三人稱,A:_youever_thecity?B:No,never.,Havebeento,與一般過去時(shí)的用法比較,現(xiàn)在完成時(shí)和一般過去時(shí)都是說過去的事情，但現(xiàn)在完成時(shí)注意的不是事情本身,而是強(qiáng)調(diào)事情與現(xiàn)在保持的某種密切聯(lián)系（如現(xiàn)在的結(jié)果，影響,一直延續(xù)到現(xiàn)在等）;而一般過去時(shí)，則只講述發(fā)生在過去的動作和事情與現(xiàn)在沒有關(guān)系。,上一頁,下一頁,主菜單,Thepasttenseorthepresentperfecttense,know,haveknown,knew,Thepasttenseorthepresentperfecttense,saw,have,lost,Thepasttenseorthepresentperfecttense,did,hasfinished,see,saw,用動詞的適當(dāng)形式填空,1.-_you_yourpen?(mend)-Yes,I_.-When_you_it?-I_ityesterday.2.-Howdoyoulikethefilm?-I_(notsee)suchamovingfilmbefore.3.Milliessister_(join)theclublastweek.Soshe_(be)intheclubfornearlyoneweek.,Have,mended,have,did,mend,mended,haventseen,joined,hasbeen,Exercises,4.Myfather_(give)up_(smoke).Hedoesnt_(smoke)now.5.TheGreenfamily_(notcome)backyetfromthecinema.They_(go)toseeafilmonehourago.,hasgiven,smoking,smoke,haventcome,went,6.ShehasknownSam_nineyears.(for,never,since)7.Theyhave_arrived.(ever,just,yet)8.Haveyou_riddenahorse?(ever,for,yet)9.ShehasknownFred_they