Unit8Grammar现在完成时课件人教版英语八年级下册

Thepresentperfectcontinuoustense现

在

完

成

时Unit8-GrammarPoint在含有现在完成时的肯定句中，与一段性时间的语连用的动词应为延续性动词；但在否定句中，可以用非延续性动词。非延续性动词

(instantverbs)

表示瞬间发生，不能与表示一段时间的状语

(for/since/howlong)连用。若要连用，须转为对应的延续性动词或状态短语延续性动词：表示动作可持续、可延续非延续性动词（瞬间动词）：表示动作瞬间完成、不可持续延续性动词

&

非延续性动词（瞬间动词）HehasjoinedthecommunistyouthLeaguefortwoyears.HehasbeenamemberofthecommunistyouthLeaguefortwoyears.（）（）第一课时1a-2d他加入共青团两年了。Ihaveboughtthiswatchfortwoyears.Ihavehadthiswatchfortwoyears.（）（）第一课时1a-2d这块手表我买了两年了。非延续性动词

(瞬间)延续性动词/短语

(状态)例句对比buyhaveIhavehaditfor2weeks.(√)

Ihaveboughtitfor2weeks.(×)borrowkeepHowlongcanIkeepthebook?diebedeadHisdoghasbeendeadforayear.joinbein/beamemberofHehasbeenintheclubsince2019.leavebeaway(from)Shehasbeenawayforanhour.begin/startbeonThefilmhasbeenonfor10mins.arrive/come/gobein/beatHehasbeeninBeijingfor3days.常见错误与正确表达对照表错误1：buy（买）错误：

Ihaveboughtthehousefor5years.（×）正确1：

Iboughtthehouse5yearsago.（√）正确2：

Ihavehadthehousefor5years.（√）解析：

buy是付钱的动作，瞬间完成。拥有状态用have表示。错误2：borrow（借）错误：

Ihaveborrowedthebookforaweek.（×）正确1：

Iborrowedthebookaweekago.（√）正确2：

Ihavekeptthebookforaweek.（√）解析：

borrow是借的动作，瞬间完成。持有状态用keep表示。错误3：leave（离开）错误：

HehasleftBeijingfor3days.（×）正确1：

HeleftBeijing3daysago.（√）正确2：

HehasbeenawayfromBeijingfor3days.（√）解析：

leave是离开的动作，瞬间完成。离开后的状态用beaway表示。错误4：join（加入）错误：

Shehasjoinedtheclubfor6months.（×）正确1：Shejoinedtheclub6monthsago.（√）正确2：Shehasbeenamemberoftheclubfor6months.（√）解析：

join是加入的动作，瞬间完成。成员身份用beamember表示。错误5：die（死）错误：

Hisgrandfatherhasdiedfor10years.（×）正确1:Hisgrandfatherdied10yearsago.（√）正确2:Hisgrandfatherhasbeendeadfor10years.（√）解析：

die是死亡的动作，瞬间完成。死亡状态用bedead表示。难点辨析：havebeen/havegonePoint

短语

意

思

用

法have/hasgoneto去了某地

(未回)表示去了某地，现在不在说话现场have/hasbeento去过某地

(已回)表示曾经去过某地，现在已经回来了。常与

ever,never,twice

等连用。have/hasbeenin待在某地（持续)表示在某地待了多久。常与for/since连用。难点辨析：havebeen/havegonePointHassheeverbeentoNanjing?

她曾去过南京吗?Youhaveneverbeenthere,haveyou?你以前从未去过那儿，是吗?IhavebeentoGuiling,Iwentthereastyear.我去过桂林，我去年去的。—WhereisTom?

—Hehasgonetothelibrary.ShehasbeeninNewYorkforamonth.Atthemeeting,themanagerskeptarguingabouttheproblemtheyreachedanagreement.A.afterC.untilB.whenD.since1.-Howlonghasshe

thesciencebook?Iwanttoborrowitfromher.-Fornearlythreeweeks.Ithinkshemighthavefinishedreadingit.A.buyB.hadC.bought2.-Whyareyouinsuchahurry?-Becausetheclass

for10minutes.A.isonB.beginsC.hasbeenonD.hasbegun3.ChengduisabeautifulcityandTom

therethreetimessincehecametoChina.A.isB.wasC.willbeD.hasbeenBCDAtthemeeting,themanagerskeptarguingabouttheproblemtheyreachedanagreement.A.afterC.untilB.whenD.since4.-Haveyoutwo

eachotherbefore,Ken?-Ofcourse.TimandI

friendssince4yearsago.A.meet;becomeB.met;becomeC.meet;havebeenD.met;havebeen5.TheprofessorreachedNanjinglastWednesday.He

therefor10days.A.hasbeenB.hasgotC.hasreachedD.hasarrived6.Manyinternationalstudents

visitourschoolsincelastyear.A.arecomingB.havecometoC.cameD.willcomeBDAAtthemeeting,themanagerskeptarguingabouttheproblemtheyreachedanagreement.A.afterC.untilB.whenD.since1.Recently，moreandmorepeoplehave

(choose)tovisitYangzhouduringholidays.2.Ihave

(regret)neverchoosingtobekind,evenwhenitwasnoteasy.3.Mr.Zhangisanexperiencedteacher.Hehas

(teach)geographyforoverthirtyyears.4.-DoyouknowMountWudanginShiyan?-Yes,Ihave

(climb)ittwice.It'sfantastic.5.I__________(be)amemberoftheRedCrossforsixyears.I’vemadealotoffriends______Ijoinedtheorganization.chosenregrettedtaughtclimbedhavebeensinceAtthemeeting,themanagerskeptarguingabouttheproblemtheyreachedanagreement.A.afterC.untilB.whenD.since6.Howlong

you_________(know)Mr.Smith?7.Mikeandhisparents

(be)thenorthforhalfayear.8.Mumisnotathomenow.she

(go)theshop.9.-______youever

(be)kunming?-Never.10.-HasJimarrivedyet?-Yes,he

(be)hereforseveraldays.haveknownhavebeeninhasgonetoHavebeentohasbeen现在完成时vs一般过去时

Point一般过去时

(SimplePast)现在完成时

(PresentPerfect)强调“过去的事实”动作发生在过去，与现在无关。只陈述过去发生过这件事。

标志词：yesterday,lastweek,in1990,justnow,whenIwasyoung...强调“对现在的影响”动作发生在过去，但对现在有影响或结果；或动作延续到现在。

标志词：