初中現(xiàn)在完成時(shí)講解完成

ThePresentPerfecttense1精品PPT|實(shí)用可編輯第一頁，共二十六頁。Winterhasalreadycome，willitstillbefarinspring?冬天已經(jīng)來了，春天還會(huì)遠(yuǎn)嗎？2精品PPT|實(shí)用可編輯第二頁，共二十六頁。present(now)futurepastPresentPerfectTens現(xiàn)在完成時(shí)1.現(xiàn)在完成時(shí)表示過去發(fā)生或已完成的動(dòng)作對現(xiàn)在造成的影響；Ihavealreadyhadbreakfast.（我已吃過早餐，我不餓了）2.現(xiàn)在完成時(shí)態(tài)還表示過去某一時(shí)間已經(jīng)開始并一直持續(xù)到現(xiàn)在（包括現(xiàn)在在內(nèi)）的動(dòng)作或狀態(tài)，可以和表示延續(xù)的時(shí)間狀語連用表示持續(xù)的動(dòng)作或狀態(tài)的動(dòng)詞多是延續(xù)性動(dòng)詞。Wehavelivedherefortenyears/since10yearsago.3精品PPT|實(shí)用可編輯第三頁，共二十六頁。主語+have/has+過去分詞（pp）助動(dòng)詞,無意義

現(xiàn)在完成時(shí)的結(jié)構(gòu)Winter

has

already

come，willitstillbefarinspring?4精品PPT|實(shí)用可編輯第四頁，共二十六頁。主語+have/has+過去分詞（pp）否定形式haven’t(havenot）+過去分詞

hasn’t(hasnot)+過去分詞疑問句把助動(dòng)詞have/has放在句首

現(xiàn)在完成時(shí)的結(jié)構(gòu)注：主語若是第三人稱單數(shù)助動(dòng)詞用has5精品PPT|實(shí)用可編輯第五頁，共二十六頁。Youhaveplantedallthetrees.Ihaveplantedallthetrees.He/shehasplantedallthetrees.Theyhaveplantedallthetrees.

區(qū)別have和has的用法

主語若是第三人稱單數(shù)助動(dòng)詞用has6精品PPT|實(shí)用可編輯第六頁，共二十六頁。1、regularverbs規(guī)則變化（過去分詞與過去時(shí)變化規(guī)則一樣）(1)、一般動(dòng)詞，在詞尾直接加“ed”。

work---worked---workedvisit---visited---visited(2)、以“e”結(jié)尾的動(dòng)詞，只在詞尾加“d”。

live---lived

過去分詞(3)、以“輔音字母+y”結(jié)尾的動(dòng)詞，將“y”變?yōu)椤癷”，再加“ed”。study--studied--studiedcry—cried--cried(4)、重讀閉音節(jié)結(jié)尾，末尾只有一個(gè)輔音字母，先雙寫該輔音字母，再加“ed”。

stop--stopped--stoppeddrop--dropped--dropped7精品PPT|實(shí)用可編輯第七頁，共二十六頁。配色花哨文字多套用模板套用模板邏輯不清內(nèi)容空洞太土太雜太亂太繁“”精品PPT·實(shí)用可編輯第八頁，共二十六頁。2、irregularverbs不規(guī)則變化（A-B-B）have—had—hadspend—spent—spentmake—made—madesay—said—saidfind—found—foundhear—heard—heard9精品PPT|實(shí)用可編輯第九頁，共二十六頁。3、不規(guī)則變化（A-B-C）take—took—takenspeak—spoke—spokensing—sang—sungdrive—drove—drivenbe—was/were—beengo—went—gone10精品PPT|實(shí)用可編輯第十頁，共二十六頁。4、不規(guī)則變化（A-A-A）cut—cut—cutput—put—putlet—let—letread—read—read11精品PPT|實(shí)用可編輯第十一頁，共二十六頁。5不規(guī)則變化(A-B-A)come–came–comebecome–became–become12精品PPT|實(shí)用可編輯第十二頁，共二十六頁。1)表示到現(xiàn)在為止已經(jīng)完成或剛剛完成的動(dòng)作。Nowwehaveplantedallthetrees.Hehasjustcomeback.Theyhavebuiltmanybuildingsinthiscity.現(xiàn)在完成時(shí)的用法13精品PPT|實(shí)用可編輯第十三頁，共二十六頁。2)表示過去發(fā)生的動(dòng)作,強(qiáng)調(diào)結(jié)果或?qū)ΜF(xiàn)在的影響。Someonehasbrokenthewindow.(窗戶現(xiàn)在是壞的)Ihavealreadylostthekey.(我現(xiàn)在沒有鑰匙)Ihaven’treadthatbookyet.(不了解書的內(nèi)容)Ihavejustcleanedmyhands.(手是干凈的)常與already(已經(jīng)),yet(已經(jīng)),just(剛剛),ever(曾經(jīng)),never,for+時(shí)間段，since+時(shí)間點(diǎn)等詞或短語連用.already:常用于肯定句中.yet:常用于否定句,疑問句尾.14精品PPT|實(shí)用可編輯第十四頁，共二十六頁。3)表示從過去開始并持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，常與包括現(xiàn)在在內(nèi)的一段時(shí)間的狀語連用。ShehaslearnedEnglishfor5years.HehaslivedinBeijing

since5yearsago.15精品PPT|實(shí)用可編輯第十五頁，共二十六頁。since:(自…以來)1)since+時(shí)間點(diǎn)He

has

stayed

here

since

5

o’clock.2)since+時(shí)間段+agoHe

has

stayed

here

since

5

hours

ago.3)since+從句She

has

taught

English

since

he

came

here.

for:(長達(dá)）for+時(shí)間段Hehaskeptthebookfor2weeks.since,for的用法:

Takenotes

16精品PPT|實(shí)用可編輯第十六頁，共二十六頁。用for或since填空Mr.BrownhashadhisTV______15years.I’vetakendrivinglessons_______lastmonth.Mysisterhashadhercellphone______amonth.Myfriendshaven’tvisitedme______fewdaysago.Wehaven’tusedourcar_____alongtime.Shehasn’thadagoodcupofcoffee_____years.Tomhaswornglasses_______hewas7yearsold.forsinceforsinceforforsince17精品PPT|實(shí)用可編輯第十七頁，共二十六頁。注：并非所有for作為時(shí)間狀語的句子都用現(xiàn)在完成時(shí)

搞清一般過去時(shí)和現(xiàn)在完成時(shí)的區(qū)別Iworkedhereformorethantwentyyears.(我現(xiàn)在已經(jīng)不在這里工作了)Ihaveworkedhereformorethantwentyyears.（現(xiàn)在我仍在這里工作）疑難點(diǎn)18精品PPT|實(shí)用可編輯第十八頁，共二十六頁。精品PPT·收集整理第十九頁，共二十六頁。辨析havebeento和havegonetoMyfatherhasgonetoShanghaiforameeting.他（已經(jīng)）去了上海。MyfatherhasbeentoShanghaiforameeting.他（曾經(jīng)）去了上海。ShehasbeentoChina.

她（曾經(jīng)）去過中國。（人已經(jīng)回來了）havebeentosomeplace.曾經(jīng)去過某地，已經(jīng)回來．hasgonetosomeplace.某人去了某地，還沒有回來．ShehasgonetoChina.她去了上海。（人可能回來了也可能沒回來）20精品PPT|實(shí)用可編輯第二十頁，共二十六頁。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.hasgonetoHavebeentohavebeentohavebeenhavebeentohasgonetohasgoneto21精品PPT|實(shí)用可編輯第二十一頁，共二十六頁。1.I____already____(see)thefilm.I________(see)itlastweek.2._____he____(finish)hisworktoday?Notyet.3.Myfather____just____(come)backfromwork.Heistirednow.4.Where’sLiMing?He__________(go)totheteacher’soffice.5.I__________(work)heresinceI______(move)herein1999.6.SofarI_______________(make)quiteafewfriendshere.7.Howlong________theWangs______________(stay)here?Fortwoweeks.8.I________just___________(finish)myhomework.22精品PPT|實(shí)用可編輯第二十二頁，共二十六頁。PPT內(nèi)容概述ThePresentPerfecttense。Wehavelivedherefortenyears/since10yearsago.。Winterhasalreadycome，。疑問句把助動(dòng)詞have/has放在句首。Ihaveplantedallthetrees.。Theyhaveplantedallthetrees.。Hehasjustcomeback.。Theyhavebuiltmanybuildingsinthiscity.。ShehaslearnedEnglishfor5years.。HehaslivedinBeijingsince5yearsago.。Wehaven’tusedourcar_____alongtime.第二十三頁，共二十六頁。9.He________(go)toschoolonfooteveryday.10.____you______(find)yoursciencebookyet?11.Ifit