1、精選優(yōu)質(zhì)文檔-傾情為你奉上英語(yǔ)現(xiàn)在完成時(shí)一 基本結(jié)構(gòu)have(has) + been + done(動(dòng)詞的現(xiàn)在分詞)否定句式 have(has) + not + been + done(動(dòng)詞的現(xiàn)在分詞)疑問(wèn)句式have（has）放在句首二 用法1. 過(guò)去發(fā)生的動(dòng)作對(duì)現(xiàn)在有影響I have seen the film ,so I know what the story says.2. 過(guò)去發(fā)生的動(dòng)作持續(xù)到現(xiàn)在（還有可能繼續(xù)發(fā)生）The film has been on for 5 minutes.三 延續(xù)性動(dòng)詞1. 現(xiàn)在完成時(shí)中應(yīng)使用延續(xù)性動(dòng)詞2. 非延續(xù)性動(dòng)詞：動(dòng)作開(kāi)始既（即）結(jié)束3. 非延續(xù)

2、性動(dòng)詞過(guò)渡到延續(xù)性動(dòng)詞常見(jiàn):四標(biāo)志1. already ,yet, never ,ever ,just ,before ,once/twice/數(shù)字+times(1) already, yetalready:用于肯定句，疑問(wèn)句中，表示“已經(jīng)”或表示強(qiáng)調(diào)He has already left here.Has he already left here.yet：用于否定句中，疑問(wèn)句中，表示“還沒(méi)”或“已經(jīng)”My teacher hasnt had breakfast yet.Have you written to your parents yet?(2) never ,ever never:從來(lái)沒(méi)

3、有ever：曾經(jīng)We have never been to the Great wall .Have you ever been to Canada?(3) just剛才I am just had breakfast.2. all the time總是 , during the last years在過(guò)去的幾年里recently最近地=lately, by the end of (this month ,next year)in the past few years/month 在過(guò)去的間up to now直到現(xiàn)在3. for+段時(shí)間，since+點(diǎn)時(shí)間I have been here for

4、 5 years.I have been here since 2000.I have been here since 5 years ago. since+段時(shí)間+agoI have been here since I graduated in 2000 .since+從句have/has gone to 去了沒(méi)回來(lái)have/has been to 去了回來(lái)了have/has been in 在某地待多久for+段時(shí)間，since+點(diǎn)時(shí)間 用how long 提問(wèn)四 固定句型1 Since句型。“since+一般過(guò)去時(shí)”Since從句中用非延續(xù)性動(dòng)詞或終止性動(dòng)詞表示肯定Since從句中用延續(xù)

5、性動(dòng)詞表示否定It has only been four days since you went to Tokyo ,but it seems like its been four years.It has/is been 5 years since he began to smoke.2.this/it + was/is +（one of ）the most/best +形容詞最高級(jí)+n.(pl.)+that +完成時(shí)This is the most interesting book that I have ever read.3.this/it + was/is +the first/second/其他序數(shù)詞/last +time +that +現(xiàn)在完成時(shí)/過(guò)去完成時(shí)This is the first time childr