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RevisionWork————ThePresentPerfectTense现在完成时态的复习Howtousethistensewell?Whydoweneedthistense?Howtotell（辨别）thistense?Howtochangeit?Istheresomethingimportant?Istheresomethingspecial?Whydoweneedit?已完成表示过去发生的或已完成的动作对现在造成的影响或结果。（动作是过去发生的，结果是现在存在的。）未完成表示过去已经开始，而且延续到现在的动作或状态。Ihavehadmysupper.谢谢你，我已吃过晚饭了。（现在用不着吃）Ihavelivedhereforaboutfiveyears.我在这里已经住了大约五年了。Howtotellit?Timeforandsince副词everneveralreadyyetjustbeforesofarrecentlyStructure(结构）have\has+动词过去分词since+（过去的）月份/年份since+一段时间+agosince+一般过去时从句for+一段时间用for和since填空（一）1)______twoyears_______twoyearsago2)_______lastmonth3)_______yesterday4)_______anhourago5)______shelefthere6)_______4o’clock8)______19999)______4hours10)_____lunchtime（二）1.HehaslivedinNanjing________theyearbeforelast.2.I’veknownhim__________wewerechildren.3.OurteacherhasstudiedJapanese_________threeyears.4.Shehasbeenawayfromthecity___________abouttenyears.5.It’sabouttenyears__________sheleftthecity.forsincesincesincesincesincesincesinceforsincesincesinceforforsinceHowtochangeit?句型转换MrLihasalreadytaughtthisclassfortwoyears.否定句一般疑问句及回答对划线部分提问MrLihasn’ttaughtthisclassfortwoyearsyet.HasMrLitaughtthisclassfortwoyearsyet?Yes,hehas.\No,hehasn’t.HowlonghasMrLitaughtthisclass?Somethingimportant延续性动词可以和表示一段时间的状语连用(since,for)，sofar英语中还有些动词的意义决定它们所表示的动作不能延续，只是一瞬间就结束的动作。这类动词叫做非延续性动词,不能和表示一段时间的状语连用。由非延续性动词到延续性动词的转换：arrive→bein/atdie→bedeadbegin(start)→beoncomeback→bebackfallill(sick,asleep)→beill(sick,asleep)leave→beawaygetup→beupfinish→beoveropen→beopenclose→beclosedborrow→keepjoin→bein或beamemberof…gotoschool→beastudentbuy→havecatch(acold)→have(acold)begintostudy→studygettoknow→knowcometowork→work等TorF他参军已有一个月的时间。1.Hejoinedthearmyamonthago.2.Hehasjoinedthearmyforamonth.3.Hehasbeenasoldierforamonth.4.Itisamonthsincehejoinedthearmy.TFTT选择填空()1.Herfather______in1990andherhusband______formorethanfiveyears.(A)died,dead(B)hasdied,dead(C)died,hasbeendead(D)hasdied,hasdied()2.Ihave_____thisnicewatchfortwoyears.(A)had(B)bought(C)borrowed(D)lend()3.He_____hishomefortenyears.(A)hasleft(B)leftfrom(C)hasbeenawayfrom(D)wasawayfrom()4.He_____aleaguememberforthreeyears(A)is(B)hasbeen(C)hasbecome(D)havebecome()5.Lihua'sbrotherhas_______fortwoyears(A)joinedthearmy(C)becomeasoldier(B)beenanarmy(D)beeninthearmy()6.He_____Quanzhoutwoyearsago.(A)left(B)hasbeenawayfrom(C)hasbeen(D)awayCACBDA同义句型转换：1.MyfatherjoinedthePartytenyearsago.Myfatherhas_______theParty____tenyears.2.LucycameheretenminutesagoLucy_______heresincetenminutesagobeeninforhasbeen3.Ihavekeptthebookforaweek.I________thebookaweekago.4.JimhasbeeninChinafor3years.Jim______China_________.borrowedcameto3yearsagoSomethingspecialhavebeento和havegoneto的区别have/hasbeento表示某人曾经去过某地，现在已经回来，主语可用各种人称。例如：IhavebeentotheGreatWall.我去过长城。have/hasgoneto表示某人去了某地，这个人已经不在此地，还没有回来。主语只能是第三人称。例如：Youcan'tfindher.ShehasgonetoBeijing.你找不到她。她到北京去了。1.MissLiuisn’tintheoffice.She_______tothelibrary.2.Where_____you_____?I_________tothehotel.3.Myuncle________toBeijingtohaveameeting.He_______theremanytimes.hasgonehavebeenhavebeenhasgonehasbeen4.LinTao________backtohishometownandwon’tbebackuntilSeptember.5.Howmanytimes__________totheUSA?No,never.6.Where’she?He_________totheteachers’office.7.Heknowsitverywellbecausehe________theremanytimes.hasgonehavebeenhasgonehasbeen课后拓展：请查找since和eversince的区别already和yet的区别熟记动词过去分词的变化