现在完成时ppt精品

现在完成时ppt精品课件present(now)futurepastPresentPerfectTense现在完成时主语+have/has+过去分词（pp）现在完成时的结构Winterhasalreadycome，willitstillbefarinspring?主语+have/has+过去分词（pp）否定形式haven’t(havenot）+过去分词hasn’t(hasnot)+过去分词疑问句把助动词have/has放在句首现在完成时的结构注：主语若是第三人称单数助动词用hasYouhaveplantedallthetrees.Ihaveplantedallthetrees.He/shehasplantedallthetrees.Theyhaveplantedallthetrees.区别have和has的用法主语若是第三人称单数助动词用has1、规则变化（过去分词与过去时变化规则一样）(1)、一般动词，在词尾直接加“ed”。　work---worked---workedvisit---visited---visited(2)、以“e”结尾的动词，只在词尾加“d”。　　live---lived过去分词(3)、以“辅音字母+y”结尾的动词，将“y”变为“i”，再加“ed”。，　　study---studied---studiedcry---cried---cried(4)、重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ed”。　　stop---stopped---stoppeddrop---dropped--dropped2、不规则变化have—had—hadam/is—was—beenare—were—beendo—did—donego—went—gonesee—saw—seenPresentperfecttense现在完成时构成:用法一：表示过去发生的某一动作对现在造成的影响或结果.现在完成时,强调是过去动作与现在的联系,也就是强调现在的影响和结果.have/has+过去分词1.两个句子都表示过去发生的事；2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用；3.一般过去时强调过去发生的事或状态,没有说明与现在的关系，它与表示过去的具体时间连用。（last,ago,yesterday,etc.）presentpastIhavelivedherefortwoyearsIlivedthere2yearsago现在完成时和一般过去时的区别：现在完成时:强调这一动作产生的结果对现在的影响或结果，与现在有关。一般过去时:仅表示在过去某一时刻曾发生过这一动作，与现在无关。他已学英语五年了。HehasstudiedEnglishforfiveyears.他曾学过五年英语。HestudiedEnglishforfiveyears.（说明他还会继续学下去）（只说明他过去学过五年英语，但现在不学了。）I’velivedherefortenyears.我在这里住了10年。(现在仍住这儿)Ilivedherefortenyears.我在这里住过10年。(现在不住这儿了)Hehasboughtahouse.他买了一栋房子。(现在已拥有这房子)Heboughtahousetenyearsago.他10年前买了一栋房子。(现在是否仍拥有这房子不清楚)一般过去时与现在完成时有一些明显的时间状语。遇到yesterday,Lastyear,inMay,in+过去某一年，twodaysago,theotherday,justnow等就用一般过去时(表过去的时间)当有sofar,in/during/overthepast/lastfewdays(在过去/最近的几年里)，since接过去时间状语或过去时的句子等常用现在完成时(不能与确定的时间)PutthefollowingsentencesintoEnglish.A:火车已经开走了.B:什么时候开走的?A:半个小时之前开走的.A:这本书我已经买了两年了.B:你在哪儿买的?A:在我老家买的.A:你看过这部电影吗?B:看过.A:什么时候看的.B:上周星期天看的.A:Thetrainhasleft.B:Whendiditleave.A:Itlefthalfanhourago.A:haveyouseenthefilm?B:Yes,Ihave.A:Whendidyouseeit?B:IsawitlastSunday.A:I`vehadthebookfortwoyears.B:Wheredidyoubuyit?A:Iboughtitinmyhometown.现在完成时不能与表示过去的时间状语连用，常与之连用的时间状语有：before,bynow(sofar),once,twice…,just,recentlyyet(否/疑),already(肯),ever,never,allone’slife,in/during/overthepast/last5years,（1）already肯定句:“己经”一般疑问句:句末(表示惊讶的语气)“难道”Haveyouhadbreakfastalready？(表示强调)I’vealreadyhadbreakfast.(常见)=I’vehadbreakfastalready.注:有already的句子在时态上并不都是现在完成时,判断时要看该词后是否有动词的过去分词.Eg.She’salreadyeightyyearsold.Itwasalreadyverylate.(2)yet否定句:句末“还(没)”疑问句:句末“己经”Haveyouhadbreakfastyet?Ihaven’thadbreakfastyet.注意：当在肯定句中含already或just，变否定时，在句末加yet。Ihaven’tseenthefilmyet.●Motherhasjustcleanedthehouse.Motherhasn’tcleanedthehouseyet.●Ihavealreadyseenthefilm. (3)ever肯定句/疑问句:句中“曾经”I’veeverbeentoBeijing.HaveyoueverbeentoBeijing?(4)never否定句:句中“从来没有”I’veneverbeentoBeijing.注:带ever的肯定句变否定句时,将ever变neverHehasevermademeal.Havetheyevertravelledbytrain?No,never.Hehasnevermademeal.带ever的一般疑问句作否定回答时可用“No,never.”(5)just用于句中,表示“刚刚”I’vejusthadbreakfast.Whathavetheyjustdone?(6)before用于句末,表示“以前”I’veseenitbefore.Hassheriddenabikebefore?Exercises1.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.havehadarrivedhasbeentohasseensawhavebeenbuilt用法二：E.g.Katehaslivedherefor3years.Katehaslivedheresince3yearsago.KatehaslivedheresinceshecametoChina.表示过去所发生的动作或存在的状态，一直持续到现在并可能还将持续下去。动词使用延续性动词。常与for或since引导的时间连用since:(自…以来)1)since+时间点He has stayed here since 5 o’clock.2)since+时间段+agoHe has stayed here since 5 hours ago.3)since+从句（句中的谓语动词为过去式）She has taught English since he came here.for:(长达）for+时间段Hehaskeptthebookfor2weeks.since,for的用法:Takenotes注意:对for或since引导的时间状语提问必须用___________1.Ihavelivedherefor10years.Howlonghaveyoulivedhere?2.Shehasstoodheresince2hoursago.Howlonghasshestoodhere?howlong选用for和since填空:1.Wehaven’tseeneachother______alongtime.2.HisfatherhasbeenintheParty______10yearsago.3.Thefilmhasbeenon______20minutes.4.MrGreenhasworkedhere______hecametoChina.5.Hisgrandpahasbeendead______severalyears.forsinceforsincefor6.Mr.BrownhashadhisTV______15years.7.I’vetakendrivinglessons_______lastmonth.8.Mysisterhashadhercellphone______amonth.9.Myfriendshaven’tvisitedme______mybirthday.10.Wehaven’tusedourcar_____alongtime.11.Shehasn’thadagoodcupofcoffee_____years.12.Tomhaswornglasses_______hewas7yearsold.forsinceforsinceforforsince注意:瞬间动词不能和时间段连用.　瞬间动词joinbegin/startborrowfinish/endarrive/comeleavediebuy··········注意PleasepointoutanymistakesandcorrectShehasboughtthecomputerfortwoyears.hadbuyhave/hashadPleasepointoutanymistakesandcorrectHowlonghaveyoucometotheUnitedStates？beenincometohave/hasbeeninbuyhave/hashadPleasepointoutanymistakesandcorrectAnnhasgonetoChinasincethreemonthsago.beenincometohave/hasbeeninbuyhave/hashadgotohave/hasbeeninPleasepointoutanymistakesandcorrectIhavegottoParisforoneweek.beenincometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninPleasepointoutanymistakesandcorrectMybrotherhasjoinedthearmyforfiveyears.beeninbeenasoldiercometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierPleasepointoutanymistakesandcorrectIhaveleftShanghaifor3days.beenawayfor3days.cometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayPleasepointoutanymistakesandcorrectIhaveborrowedthedictionarysince3daysago.keptcometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayborrowhave/haskeptPleasepointoutanymistakesandcorrectThefilmhasbegunfor10minutes.beenoncometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayborrowhave/haskeptbeginhave/hasbeenonPleasepointoutanymistakesandcorrectTheconcerthasfinishedforhalfanhour.beenovercometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayborrowhave/haskeptbeginhave/hasbeenonfinishhave/hasbeenoverPleasepointoutanymistakesandcorrectHisdoghasdiedfortwoyears.beendeadcometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayborrowhave/haskeptbeginhave/hasbeenonfinishhave/hasbeenoverdiehave/hasbeendeadPleasepointoutanymistakesandcorrectShehasmarriedforsixyears.beenmarriedcometohave/hasbeeninbuyhave/hashadgotohave/hasbeeningottohave/hasbeeninjoinhave/hasbeeninhave/hasbeenasoldierleavehave/hasbeenawayborrowhave/haskeptbeginhave/hasbeenonfinishhave/hasbeenoverdiehave/hasbeendeadmarryhave/hasbeenmarried常见非延续性动词和延续性动词的转变arrive/come/gotodiebecomeaborrowLeave/movebuyopenjoinstart/beginfinish/endcatchacoldgetupgettoknowgetoutclosewakeupgotosleepbecomeinterestedinbeinbedeadhavekeepbeaway/beoutbeabein/amemberofbeopenbeonbeoverhaveacoldbeupknowbeoutbeclosedbeawakebeasleep/sleepbeinterestedinExercisesHisfatherhasdied.(for2years)Thefootballmatchhasbegun.(since9:00a.m)Thetwinshavejoinedthearmy.(sincetheyare18yearsold)MyteacherhasjustleftNanjing.(for3days)Hisfatherhasbeendeadfor2years.Thefootballmatchhasbeenonsince9:00a.m.Thetwinshavebeensoldiers/beeninthearmysincetheyare18yearsold.MyteacherhasbeenawayfromNanjingfor3days注：※非延续性动词可以于现在完成时,表示动作已经完成，它不能跟段时间。但它的否定式可以跟段时间状语连用.TomhasleftBeijing.Tomhasn’tleftBeijingsincehecametothiscityin2004.Hehasborrowedapenfromme.Hehasn’tborrowedapenfrommesinceweargued.重点句型:Itis/hasbeen+段时间+since从句段时间+haspassed+since从句eg.他死了两年了：Hediedtwoyearsago.Hehasbeendeadfortwoyears/sincetwoyearsagoItis/hasbeentwoyearssincehedied.Twoyearshaspassedsincehedied.这本书我借了一个月了。Iborrowedthisbookamonthago.Itis/hasbeenamonthsinceIborrowedthebook.Ihavekeptthebookforamonth./sinceamonthago.AmonthhaspassedsinceIborrowedthebook.用法三：havebeento曾经去过某地（已返回）havegoneto去了某地（还没有回来）ABAB巧记：beento，goneto意不同，两者用法要记清；havebeento+地名，曾经到过某地行；havegoneto+地点，到某地去了已走远。havebeenin+地点，在某地呆多久。1.IhavegonetoJapanbefore.()2.Guilinisverybeautiful,Ihavebeentotheretwice.()3.HisfatherhasgonetoBeijing.Hewillbebacknextweek()4.Wherehaveyougone?()Trueorfalse?FFFTbeenbeen去掉canyoudistinguish?have/hasbeentohave/hasgonetohave/hasbeenin1.Bill____________London,hewillcomebacktomorrow.2.A:Wherearethetwins?B:They____________thecinema.3.I_______________Paristwice.Heneverthere.4.A:youever_________America?B:No,never.5.A:Howlongyou________China?B:Foroneyear.6.HeleftforEnglandtwodaysago.He___________therefortwodays.hasgonetohavegonetohavebeentobeentobeeninhasbeenhavehasbeenHave用have/hasbeento,have/hasgoneto填空：1.—Whereisyourbrother?—He____________theshop.He’llbebacksoon.2.—______youever_________toAmerica?—Yes,I___________NewYorktwice.3.—Hereyouareatlast!Where_____you_____?—I_____________London.4.—David_____________Australia.—I’msurehe’salreadyarrived.5.—IsBennyhere?—No,he__________theschoollibrary.Heleftfiveminutesago.hasgonetoHavebeentohavebeentohavebeenhavebeentohasgonetohasgonetoExercisesTom在哪儿？他去书店买书了。我在北京待了5年了。Jack去过上海两次了-WhereisTom?-Hehasgonetothebookshoptobuysomebooks.IhavebeeninBeijingfor5years.JackhasbeentoShanghaitwice.1.When（特殊疑问词“什么时候”）不用于现在完成时。因为它是对动作所发生的时间提问的，而现在完成时的动作却是过去所发生的。e.g--WhereisTom?--Hehasgonetothezoo?--Whendidhego?--Hewenttherethismorning.注意2.被形容词最高级所修饰的名词后的定语从句(that引导)中，一般用现在完成时态。Thisisthemostdeliciousfood(that)I’veevereaten.这是我所吃过的最美味的食物。Sheisthemostbeautifulgirl(that)I’veeverseen.她是我见过的最美丽的姑娘3.Itisthefirst/secondtime+现在完成时Thisis+the最高级+名词+that+现在完成时Thisisthefirsttime(that)I‘veheardhimsing.　这是我第一次听他唱歌。ItisthefirsttimethatIhaveseensuchabeautifulgirlItwasthethirdtimethattheboyhasbeenlate.ThisisthebestfilmthatI‘ve(ever)seen.这是我看过的最好的电影。典型例题(1)---Doyouknowourtownatall?　　---No,thisisthefirsttimeI___here.A.was　B.havebeen　C.came　D.amcoming(2)---Haveyou____beentoourtownbefore?　---No,it‘sthefirsttimeI___here.A.even,come　B.even,havecome　　C.ever,come　D.ever,havecomeDB当堂检测一、句式变换：（5分,每空1分）1.JackhasvisitedChinabefore.(改为否定句）JackvisitedChinabefore.2.Theyhavecomeintotheclassroom.(改为一般疑问句）comeintotheclassroom?3.Hehasbeenherefor12years.(划线提问）hashebeenhere?hasn’tHavetheyHowlong1、Hehasneversurfed,?（改成反意疑问句）2、Theyhavebeenheresince2000.(对划线部分提问)havetheybeenhere?3、Theoldman_________lastyear.He_____________forayear.(die)（动词填空）hasheHowlongdiedhasbeendead4.Thisfactoryopenedtwentyyearsago.(同义句转换)Thisfactory________fortwentyyears.5、MissGaoleftanhourago.(同义句转换)MissGao____________________anhourago.6、HermotherhasbeenaPartymemberforthreeyears.（同义句）Hermother_______thePartythreeyears_______.7、TheGreenFamilymovedtoFrancetwoyearsago.(同义句转换)_______twoyears________theGreenfamilymovedtoFrance.8、Thebushasarrivedhere.Itarrivedtenminutesago.(把两个句子合并成一个句子)___________________________________________hasbeenopenhasbeenawaysincejoinedagoItissinceThebushasbeenherefortenminutesCorrecting1.Ihaveborrowedthebookfor3months.2.Mybotherhasjoinedthearmysincehewas18.3.JackandTomhavelivedheresince5years.4.ThefilmhasbeenonsinceIhavecometothecinema.5.WhenhasMr.Licaughtabadcold?havekepthasbeenin/beenamemberofthearmysince5yearsago/for5yearscamedidcatch6.Tenyearshavepassedsincetheygotmarried.7.JimhasgonetoBeijingfor2years.8.Whattimehavethefactoryopened?9.IhavegonetoChunhuaMiddleSchooltwice.hashasbeenindidopenbeento写出下列动词的过去式及过去分词1become_______-________2break_______-_________3bring_______-________4build_______-_________5bite_______-_________6catch_______-_________7choose________-_______8cut________-__________9fall_______-__________10fly_______-__________11forget_______-_______12grow________-_______13hit______-______14hurt_____-______15keep_____-______16lend______-_____17lose______-______18meet_____-______19put______-______20read______-_____21ring______-______becamebecomebrokebrokenbroughtbroughtbuiltbuiltbitbitcaughtcaughtchosechosencutcutfellfallenflewflownforgotforgottengrewgrownhithithurthurtkeptkeptlentlentlostlostmetmetputputreadreadrangrungExercises()1.You’veneverseensuchawonderfulfilmbefore,_______?A.haven’tyouB.haveyouC.doyouD.don’tyou()2.—Ihavewatchedthegame.—When____you____it?A.have;watchedB.do;watchC.did;watchD.will;watch()3.Mr.Green____inChinasincefiveyearsago.A.livedB.haslivedC.livesD.isgoingtolive()4.Hisgrandma______fortwoyears.A.diedB.hasdiedC.wasdeadD.hasbeendeadBCBD()5.–WhereisHanMeinow?－She____toShanghai.Shewillbebackintwodays.A.hasgoneB.hasbeenC.goesD.hadgone()6.－_____you____totheUnitedStated?－No,never,butIwenttoCanadaafewyearsagoA.Have;beenB.Have;goneC.Did;goD.Do;go()7.Youhaven’tchangedyourmind,_______?A.doyouB.areyouC.haveyouD.didyou()8.Howlonghaveyou_____thefootballteamoftheschool?A.playedB.beenatC.joinedDbeenonAACD()9.—Wherehaveyou_____thesedays?—Ihave_____toKunmingwithmyfriends.Abeen,goneBbeen,beenCgone,beenDgone,gone()10.Howlonghaveyou____thisbook?A.boughtB.borrowedC.hadD.lent()11.—Excuseme,____youseenthefilmyet?—Yes,I_____itlastnight.Ahave,seeBhave,haveseenChave,seenDhave,saw()12.Hehasneverriddenahorsebefore,_____?A.isheB.isn’theC.hasn’theD.hasheBCDD1、Bothhisparentslooksad.Maybethey_________what'shappenedtohim.Ａ.knewＢ.haveknownＣ.mustknowＤ.willknow2、Hehas_______beentoShanghai,hashe?Ａ.alreadyＢ.neverＣ.everＤ.still3、HaveyoumetMrLi______？Ａ.justＢ.agoＣ.beforeＤ.amomentago4、Thefamouswriter_____onenewbookinthepasttwoyear.Ａ.iswritingＢ.waswritingＣ.wroteＤ.haswrittenBBCD5、—Ourcountry______alotsofar.　—Yes.Ihopeitwillbeeven______.Ａ.haschanged;wellＢ.changed;goodＣ.haschanged;betterＤ.changed;better6、ZhaoLan______already______inthisschoolfortwoyears.　　Ａ.was;studyingＢ.will;study　　Ｃ.has;studiedＤ.are;studying7、We______XiaoLisinceshewasalittlegirl.Ａ.knowＢ.hadknownＣ.haveknownＤ.knew8、HarryPotterisaverynicefilm.I_______ittwice.Ａ.willseeＢ.haveseenＣ.sawＤ.seeCCCB9、—ThesefarmershavebeentotheUnitedStates.　　—Really?When_____there?　　Ａ.willtheygoＢ.didtheygo　　Ｃ.dotheygoＤ.havetheygone10、—______you___yourhomeworkyet?　　—Yes.I_____itamomentago.　Ａ.Did;do;finishedＢ.Have;done;finished　Ｃ.Have;done;havefinishedＤ.will;do;finish11、Hisfather______thePartysince1978.Ａ.joinedＢ.hasjoinedＣ.wasinＤ.hasbeenin　12、—Doyouknowhimwell?　　—Sure.We_________friendssincetenyearsago.Ａ.wereＢ.havebeenＣ.havebecomeＤ.havemadeBBDB13、—Howlonghaveyou____here?　　—Abouttwomonths.　　Ａ.beenＢ.goneＣ.comeＤ.arrived14、Hurryup!Theplay_______fortenminutes.　　Ａ.hasbegunＢ.hadbegun　　Ｃ.hasbeenonＤ.began15、It_____tenyearssinceheleftthearmy.　　Ａ.isＢ.hasＣ.willＤ.was16、MissGreenisn'tintheoffice.she_______tothelibrary.Ａ.hasgoneＢ.wentＣ.willgoＤ.hasbeenACAA17、Myparents______Shandongfortenyears.　　Ａ.havebeeninＢ.havebeento　　Ｃ.havegonetoＤ.havebeen18、Thestudentshavecleanedtheclassroom,?A.sotheyB.don’ttheyC.havetheyD.haven’tthey19、hasMrWhitebeenamemberofGreenerChinasincehetoChina?A.Howsoon,comesB.Howoften,gotC.Howlong,cameD.Howfar,arrived20、Hisuncleformorethan9years.A.hascomehereB.hasstartedtoworkC.haslivedthereD.haslefttheuniversityADCCA）用have(has)been或have(has)gone填空。A:Where____________LiFei___________?B:He____________toHainanIsland.A:Howlong___________he___________there?B:He_____________thereforthreedays.A:Whenwillhecomeback,doyouknow?B:I’mafraidhewon’tcomebackrecently.A:CouldyoutellmethewaytoHainanIsland?B:Sorry,I_________never___________there.A:Howmanytimes_______LiFei________tothatplace?B:He_____________thereonlyonce.hasgonehasbeenhasbeenhasbeenhavebeenhasbeenhasbeenB)用have/hasbeento/in,havegoneto的各种形式填空。1）---WhereisJack?---He__________hiscountry.2）Howlong_____you_____thisvillage?3）TheSmiths_________Beijingforyears.4）---_____youever____America?--Yes,I_______theremanytimes.5）I_______thisschoolsincethreeyearsago.hasbeentohavebeeninhavebeeninHavebeentohavebeenhavebeenin汉译英1、吉姆已做完作业，他现在有空了。2、他昨天收到一封信。3、我父亲以前到过长城。Jimhasfinisheddoinghishomeworkalready.HeisfreenowHereceivedaletteryesterdayMyfatherhasbeentotheGreatWallbefore4、她还没有看过那部新电影。5、她去过上海。6、他这些天上哪儿去了？Shehasn'tseenthenewfilmyet.ShehasbeentoShanghai.Wherehashebeenthesedays？