Unit1RelationshipsLesson1Teachers现在完成时过去完成时课件高中英语北师大版选择性

现在完成时&过去完成时PresentPerfect&PastPerfectTime：2024现在完成时&过去完成时TodayYesterdayThedaybeforeyesterdayBAC

现在完成时（PresentPerfect）表示过去发生的事情对现在产生的影响或结果。常用的状语有already，ever，just(刚刚)，yet等。Hehasalreadyturnedoffthelight. 他已经关灯了。(＝Thelightisoffnow.)

现在完成时（PresentPerfect）表示一个动作开始于过去，一直持续到现在。常与之连用的时间状语有lately，recently，untilnow，uptonow，sofar，bynow，eversince，since，inthelast(past)fewdays/years，for+一段时间等。Inthepastfewyears，greatchangeshavetakenplaceinmyhometown. 在过去的几年里，我的家乡发生了巨大变化。Exercise1.I________(drive)forthirtyyears,andI’mnotgoingtostopnow.【答案】havedriven【详解】句意：我已经开了30年车了，现在我不会停下来的。根据“forthirtyyear”可知，此处用现在完成时，故填havedriven。Exercise2.It'sreportedthatthetemperature

(climb)quicklysincethismorning.【答案】hasclimbed【详解】句意：据报道，从今天早上开始气温迅速上升。since自从...，要用于现在完成时have/has+过去分词，temperature要用has，故填hasclimbed。Exercise3.(2018新课标II卷)Since2011,thecountry________(grow)morecornthanrice.【答案】hasgrown【详解】考查时态。句意：自2011年以来，与水稻相比，该国种植了更多的玉米。句中since表示“自从”，是现在完成时的标志词，句子应用现在完成时，且主语thecountry是单数，谓语动词应用第三人称单数形式。故填hasgrown。Exercise4.（2022全国甲卷）Inthelastfiveyears,Cao________(walk)through34countriesinsixcontinents.【答案】haswalked【详解】考查动词时态。句意：在过去五年中，曹穿越了六大洲的34个国家。根据时间状语inthelastfiveyears可知，此处应用现在完成时，主语Cao为第三人称单数，助动词用has。故填haswalked。。BeforeMrJenkinstaughtme,sciencehadsimplybeenasubjectfullofstrangewordstome.过去现在

过去的过去：结构：（助动词）had+done（动词的过去分词）过去完成时动作在hadbeen发生之后动作在taught发生之前before引导的时间状语从句用法1：强调过去某一动作发生在另一动作之前“过去的过去”

过去完成时（PastPerfect）HongKong_________(return)toChinain1997.returnedMacao__________(return)toChinain1999.returnedHongKong____________(return)toChinabeforeMacaocamebacktoChina.hadreturned

过去完成时（PastPerfect）用法2：表示一个动作或状态从过去某一时间之前已经开始，这一动作一直持续或将继续下去。I____________(learn)Englishfor10yearswhenIgraduated.He____________(stay)herefortwodaysbeforeheleft.hadlearnedhadstayedbythen到那时为止bythattime到那时候

时间标志词before在......之前bytheendof到......末为止untilthen直到那时bythetime+一般过去时的从句到......时候

过去分词：规则变化规则动词例子直接+ed一般动词worked,helped去e+ed不发音e结尾liked,lived双写+ed辅元辅，双写尾字母planned,stopped改y为i+ed以辅音+y结尾studied,cried

常见不规则动词过去时和过去分词：动词原型过去式过去分词bewas,werebeenhavehadhaddodiddonecomecamecomegowentgonetaketooktakenmakemademade

常见不规则动词过去时和过去分词：动词原型过去式过去分词leaveleftleftknowknewknowndrinkdrankdrunkeatateeatenchoosechosechosenbreakbrokebrokenflyflewflownExercise1.Itwastheninthtimethattheteam________(win)thechampionship.【答案】hadwon【详解】考查固定句型。句意：这是该队第九次赢得冠军。itis/wasthe+序数词+time+that+句子，表示“第几次做……”，主句用is，从句用现在完成时；主句用was，从句用过去完成时，所以此处应用过去完成时，在that从句中主语theteam和动词win是主动关系，故填hadExercise2.BythetimeIgottoschool,thefirstplay______(be)onfornearlyhalfanhour.【答案】hadbeen【详解】考查时态。句意：我到学校时，第一场戏已经上演了将近半个小时。根据上文BythetimeIgottoschool可知为现在完成时，故填hadbeen。Exercise3.Whensherealizedthatshehadleftherhandbaginthetaxi,thetaxi_________(disappear).【答案】haddisappeared【详解】考查动词时态。句意：当她意识到她把手提包忘在出租车上时，出租车已经不见了。分析句子结构可知，主句缺少谓语动词，disappear发生在realized之前，表示“过去的过去”，需用过去完成时。故填haddisappeared。常使用完成时的句型1

Itwas/hadbeen+段时间+since从句，从句用过去完成时；

Itis/hasbeen+一段时间+since从句，从句用一般过去时。●Itwastenyearssincewe________(have)suchawonderfultime.我们十年没这么高兴了。●Itisthreeyearssincehe

________(join)

thearmy.他参军已经三年了。hadhadjoined常使用完成时的句型2

Itisthefirst/second/time+that从句，从句用现在完成时；

Itwasthefirst/second/time+that从句，从句用过去完成时。●Itisthefirsttime

thatI__________(be)

here.这是我第一次到这里来。●Itwasthefirsttime

that

he

____________(listen)

soattentively.

这是他第一次那么认真地听讲。havebeenhadlistened常使用完成时的句型3

That/This/It

is/was+the+最高级+名词+定语从句，从句常用完成时。●Thisis

thebestfilmthatIhaveeverseen.这是我看过的最好的一部电影。●Thatdinnerwas

themostexpensivemealwehadeverhad.那顿饭是我们吃过的最贵的一顿饭。Puttheverbsinbracketsusingthesimplepastorpastperfectform.1.IwashedmyhandsafterI___________(clean)thedishes.2.Bynow,thebird_________(make)manyswanfriendsthere,anditislivingahappylife.It’sreallyahappyending.

3.Mylife________(be)verymiserablesinceshedied.4.John_________(be)anartistbeforehe_________(become)amusician.hadcleanedhasmadehasbeenhadbeenbecameExercisePuttheverbsinbracketsusingthesimplepastorpastperfectform.Exercise5.Where_________(you/be)afterI_________(see)youatthepark?6.Mygrandparents__________(know)eachotherforayearbeforethey_________(get)married.7.Mysister_________(play)alotaftershe___________(finish)themidtermexam.8.Howmanycoffees_____________(she/drink)beforetheinterview?hadknowngotwereyouhadseenplayedhadfinishedhadshedrunkPuttheverbsinbracketsusingthesimplepastorpastperfectform.Exercise9.Ithasbeenthreeyearssincehe________(leave)Beijing.10.ItwasjustaweeksinceI____________(arrive)here.11.Thisisthe