小學(xué)英語(yǔ)語(yǔ)法專(zhuān)題：時(shí)態(tài)的分類(lèi)（現(xiàn)在完成時(shí)的構(gòu)成和不同人稱(chēng)的用法）

什么是現(xiàn)在完成時(shí)？現(xiàn)在完成時(shí)指的是過(guò)去發(fā)生并且已經(jīng)完成的動(dòng)作對(duì)現(xiàn)在造成影響或后果，過(guò)去某一時(shí)間開(kāi)始并一直持續(xù)到現(xiàn)在并且有可能還會(huì)持續(xù)的動(dòng)作或狀態(tài)。一.基本構(gòu)成：have/has+done（動(dòng)詞的過(guò)去分詞p.p）Ihavefinishedmyhomework.我已完成了作業(yè)。（這里的finished就是動(dòng)詞finish的過(guò)去分詞。）二.動(dòng)詞過(guò)去分詞變化規(guī)則我們和動(dòng)詞過(guò)去式一起來(lái)記憶吧！變化規(guī)則動(dòng)詞原形動(dòng)詞過(guò)去式動(dòng)詞過(guò)去分詞A-A-A型cutcutcutputputputreadreadreadsetsetsethurthurthurtletletletshutshutshutA-B-B型bringbroughtbroughtbuyboughtboughtkeepkeptkeptA-B-B型buildbuiltbuiltsendsentsentspendspentspenttelltoldtoldthinkthoughtthoughtteachtaughttaughtA-B-B型saysaidsaidmeetmetmetmakemademadeA-B-C型beginbeganbegundrink

drankdrunksingsangsungringrangrungblowblewblownflyflewflowndrawdrewdrawngrowgrewgrowndrivedrovedrivenrideroderiddenbreakbrokebreakenfreezefrozefrozenforgetforgotforgetteneatateeatenfallfellfallentaketooktakengowentgoneA-A-B型beatbeatbeatenA-B-A型comecamecomebecomebecamebecomerunranrun學(xué)習(xí)小貼士★情態(tài)動(dòng)詞沒(méi)有過(guò)去分詞?！顱e動(dòng)詞（am，is，are）的過(guò)去分詞只有been.三.現(xiàn)在完成時(shí)不同人稱(chēng)的用法I

have

washedmycar.我洗過(guò)車(chē)子了。We

have

donethewholework.我們干完了所有活兒。They

have

gone.他們已經(jīng)走了。Have

youseenthedoctor？你看過(guò)醫(yī)生了嗎？

He

has

beentoHongKong.他去過(guò)香港了。Theboy

has

walkedforalongtime.這個(gè)男孩已經(jīng)走了很長(zhǎng)時(shí)間了。學(xué)習(xí)小