八年級英語下 現(xiàn)在完成時態(tài)課件牛津版.ppt

presentperfecttense presentperfecttense現(xiàn)在完成時 構成 用法一 表示過去發(fā)生的某一動作對現(xiàn)在造成的影響或產(chǎn)生的結果 現(xiàn)在完成時這一時態(tài)強調是過去動作與現(xiàn)在的聯(lián)系 也就是強調現(xiàn)在的影響和結果 have has 過去分詞 1 都表示過去發(fā)生的事2 現(xiàn)在完成時強調過去和現(xiàn)在的聯(lián)系 不能和具體的時間狀語連用 3 一般過去時強調過去發(fā)生的事或狀態(tài)與表示過去的具體時間連用 last ago yesterday etc present past ihavelivedherefortwoyears ilivedthere2yearsago eg 1 hehadhisbreakfastat6 00hehashadhisbreakfast 2 whendidyoucomehere iwatchedthefootballmatchontvat9 00 adverbsoftime before bynow sofar once twice just recentlyyet 否 疑 already 肯 ever never allone slife in duringthepast last5years exercises 1 i have lunchalready 2 hasthetrain arrive yet 3 tome never beto china 4 thetwin just see myfather 5 thetwins see myfatherjustnow 6 manytallbuildings build inthepast5years havehad arrived has beento has seen saw havebeenbuilt 用法二 for 段時間since 點時間since 句子 過去時 e g katehaslivedherefor3years katehaslivedheresince3yearsago katehaslivedheresinceshecametochina 表示過去某個時間開始的動作或存在的狀態(tài) 一直持續(xù)到現(xiàn)在并可能還將持續(xù)下去 動詞使用延續(xù)性動詞 常與for或since引導的時間連用 常見非延續(xù)性動詞和延續(xù)性動詞的轉變 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 hisfatherhasdied for2years thefootballmatchhasbegun since9 00a m thetwinshavejoinedthearmy sincetheyare18yearsold myteacherhasjustleftnanjing for3days hisfatherhasbeendeadfor2years thefootballmatchhasbeenonsince9 00a m thetwinshavebeensoldiers beeninthearmysincetheyare18yearsold myteacherhasbeenawayfromnanjingfor3days 重點句型 itis hasbeen 段時間 since從句段時間 haspassed since從句 eg 他死了兩年了 hediedtwoyearsago hehasbeendeadfortwoyears sincetwoyearsagoitis hasbeentwoyearssincehedied twoyearshaspassedsincehedied 1 這本書我借了一個月了 iborrowedthisbookamonthago itis hasbeenamonthsinceiborrowedthebook ihavekeptthebookforamonth sinceamonthago amonthhaspassedsinceiborrowedthebook have hasgonetohave hasbeentohave hasbeenin have hasgoneto 已經(jīng)去了或在途中 還沒有返回 have hasbeento 曾今去過某地 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間 現(xiàn)仍在那里 其后常帶表示一段時間的狀語 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 exercises iamanamericanboyicametochinatwoyearsago i study herefortwoyears myfatheroften take me play footballontheplayground lastweeki take totheparkbyhim wesawalotofmonkeys jump inthetree iheardavoicefrombehindwheni walk alongtheriver ithoughtmyse