八年級(jí)英語下冊 現(xiàn)在完成時(shí)課件 （新版）牛津版.ppt

,8BUnit2,狙擊中考,Presentperfecttense現(xiàn)在完成時(shí),構(gòu)成:用法一：,表示過去發(fā)生的某一動(dòng)作對(duì)現(xiàn)在造成的影響或產(chǎn)生的結(jié)果.現(xiàn)在完成時(shí)這一時(shí)態(tài)強(qiáng)調(diào)是過去動(dòng)作與現(xiàn)在的聯(lián)系,也就是強(qiáng)調(diào)現(xiàn)在的影響和結(jié)果.,have/has+過去分詞,Adverbsoftime,before,bynow(sofar),once,twice,just,recentlyyet(否/疑),already(肯),ever,never,alloneslife,in/duringthepast/last5years,Exercises,1.I_(have)lunchalready.2._thetrain_(arrive),yet?3.Tome_never_(be)toChina.4.Thetwin_just_(see)myfather.5.Thetwins_(see)myfatherjustnow.6.Manytallbuildings_(build)inthepast5years.,havehad,arrived,has,been,has,seen,saw,havebeenbuilt,Has,用法二：for+一段時(shí)間since+時(shí)間點(diǎn)since+句子（一般過去時(shí)）E.g.Katehaslivedherefor3years.Katehaslivedheresince3yearsago.KatehaslivedheresinceshecametoChina.,表示過去某個(gè)時(shí)間開始的動(dòng)作或存在的狀態(tài)，一直持續(xù)到現(xiàn)在并可能還將持續(xù)下去。動(dòng)詞使用延續(xù)性動(dòng)詞。常與for或since引導(dǎo)的時(shí)間連用,常見非延續(xù)性動(dòng)詞和延續(xù)性動(dòng)詞的轉(zhuǎn)變,arrive/come/gotodiebecomeaborrowleave/movebuyopenjoinstart/beginfinish/endcatchacoldgetupgettoknowgetoutclosewakeupgotosleepbecomeinterestedin,bein,bedead,have,keep,beaway/beout,bea,bein/amemberof,beopen,beon,beover,haveacold,beup,know,beout,beclosed,beawake,beasleep/sleep,beinterestedin,Exercises,Hisgrandfatherhasdied.(for2years)Thefootballmatchhasbegun.(since9:00a.m)Thetwinshavejoinedthearmy.(sincetheyare18yearsold)MyteacherhasjustleftNanjing.(for3days),Hisfatherhasbeendeadfor2years.,Thefootballmatchhasbeenonsince9:00a.m.,Thetwinshavebeensoldiers/beeninthearmysincetheyare18yearsold.,MyteacherhasbeenawayfromNanjingfor3days,have/hasgonetohave/hasbeentohave/hasbeenin,have/hasgoneto:已經(jīng)去了某地或人還在途中，人還沒有返回；have/hasbeento:曾經(jīng)去過某地，現(xiàn)在已經(jīng)回來了,后面可接表示“次數(shù)”的狀語;have/hasbeenin:表示某人“已在某地停留一段時(shí)間，現(xiàn)仍在那里”，其后常帶表示一段時(shí)間的狀語。,Exercises,Tom在哪兒？他去書店買書了。我在北京待了5年了。Jack去過上海兩次了,-WhereisTom?-Hehasgonetothebookshoptobuysomebooks.,IhavebeeninBeijingfor5years.,JackhasbeentoShanghaitwice.,Correcting,1.Ihaveborrowedthebookfor3months.2.Mybotherhasjoinedthearmysincehewas18.3.JackandTomhavelivedheresince5years.4.ThefilmhasbeenonsinceIhavecometothecinema.5.WhenhasMr.Licaughtabadcold?,havekept,hasbeenin/beenamemberofthearmy,since5yearsago/for5years,came,did,catch,6.Tenyearshavepassedsincetheygotmarried.7.JimhasgonetoBeijingfor2years.8.Whattimehavethefactoryopened?9.IhavegonetoChunhuaMiddleSchooltwice,has,hasbeenin,did,open,beento,