Presentperfecttense現(xiàn)在完成時(shí)U1Grammar一、用法1.強(qiáng)調(diào)過(guò)去動(dòng)作持續(xù)到現(xiàn)在從古至今IhavelivedinShanghaisince10yearsago.ShehasbeentoBeijingmanytimesoverthepast2years.意指現(xiàn)在還在住并很有可能繼續(xù)住下去從過(guò)去到現(xiàn)在很多次并還會(huì)有2.強(qiáng)調(diào)過(guò)去動(dòng)作對(duì)現(xiàn)在的影響Ihavelostmykey,soIcan’topenthedoor.過(guò)去丟了，導(dǎo)致現(xiàn)在開(kāi)不了門(mén)借古諷今現(xiàn)在過(guò)去動(dòng)作或影響延續(xù)二、構(gòu)成have/has+done助動(dòng)詞，無(wú)實(shí)義變否疑，拿來(lái)用動(dòng)詞的過(guò)去分詞原形過(guò)去式過(guò)去分詞過(guò)去分詞怎么變過(guò)去分詞？大部分和動(dòng)詞的過(guò)去式相同還有一部分比較特殊have/has+done助動(dòng)詞，無(wú)實(shí)義變否疑，拿來(lái)用三、否/疑1.他們已經(jīng)完成家庭作業(yè)了。They______________(finish)theirhomework.

2.他已經(jīng)完成家庭作業(yè)了。He______________(finish)hishomework.

havefinishedhasfinishedtheyhave=they’vehehas=he’s否否notnotYes,theyhave./No,theyhaven’t.Yes,hehas./No,hehasn’t.havenot=haven’thasnot=hasn’t四、常見(jiàn)時(shí)間狀語(yǔ)1.for+一段時(shí)間e.g.Shehassleptfor10hours.2.since+時(shí)間點(diǎn)(自從...)e.g.Ihavelivedheresince2002.Ihavelivedheresince10yearsago.IhavelivedheresinceIwasborn.3.recently(最近）e.g.Hehaseatenmanyicecreamsrecently.4.sofar=tillnow=untilnow=uptonow(迄今為止)e.g.Ihaven’tgothisletteruptonow.5.before(單獨(dú)用于句尾)e.g.Ihaveneverheardaboutthissuperstarbefore.四、常見(jiàn)時(shí)間狀語(yǔ)6.justvs.justnowjust:(現(xiàn)完)ShehasjustgonetoBeijing.

justnow:(過(guò)去)

Shewenthomejustnow.7.ever&neverever:(主要用于疑問(wèn)句)HaveyoueverbeentoBeijing?

never:(表否定)IhaveneverbeentoBeijing.8.already&yet(已經(jīng))already:(肯)Hehasalreadyleft.

yet:(否/疑)Ihaven’thadbreakfastyet.9.thesedayse.g.Shehasread5booksthesedays.10.in/during/overthe(past)tenyearse.g.Shehasgrownalotinthepast2years.haschangedhasturnedhasimprovedhavemovedbuilthaven’tvisitedfoundhasworkedleftwenthasreturnedboughthavevisitedhavelivedhavebeenhavefallenhavebeenHave

noticedarehaveenjoyed現(xiàn)完VS過(guò)去時(shí)過(guò)去發(fā)生，持續(xù)到現(xiàn)在過(guò)去發(fā)生1.--Haveyou______yourhomeworkyet?--Yes,I______itanhourago.A.finish;finishedB.finished;finishedC.finished;havefinished2.She______inBeijingsince2010.A.livesB.haslivedC.lived3.--______youever______toShanghai?--No,never.A.Have;beenB.Did;goC.Do;go4.--______he______lunchyet?--Yes,heateittenminutesago.A.Has;hadB.Did;haveC.Does;have5.They______just______theclassroom.A.have;cleanB.has;cleanedC.have;cleaned1.He_____________(notfinish)hisprojectyet.2.__________youever__________(see)apanda?3.They_______________(live)heresincetheywereborn.4.I______________(watch)thismovie.Youcangobyyourself.5.Mymother______________just_____________(cook)dinner.6.I______________(meet)herwhenIwasakid.7.She______________(wash)herclothessinceshecameback.8.Mr.Li_______________(teach)mathfortenyears.hasn’tfinishedHaveseenhavelivedhavewatchedhascookedmethaswashedhastaught1.Shehasalreadywateredtheflowers.(改為否定句)

→She____________________theflowers__________.2.Theyhavelivedhereforfiveyears.(對(duì)劃線(xiàn)部分提問(wèn))

→______________________________theylivedhere?3.Ihavereadthisbook.(改為一般疑問(wèn)句并作否定回答)

→__________you__________thisbook?→No,I____