常見(jiàn)八種時(shí)態(tài)標(biāo)志詞

1、12021/8/141.一般現(xiàn)在時(shí)一般現(xiàn)在時(shí)n謂語(yǔ)用動(dòng)詞原形do或第三人稱單數(shù)does形式。n標(biāo)志詞有：every day, every Sunday, often, always, usually, sometimes , on Sundays,in the morning, on weekdays,once a week等等n2.現(xiàn)在進(jìn)行時(shí)現(xiàn)在進(jìn)行時(shí)am/is /are+doing形式。n標(biāo)志詞：now,at this time, at present,句首有Look!, Listen!Hurry！等警示語(yǔ)22021/8/14n3.一般過(guò)去時(shí)一般過(guò)去時(shí)用動(dòng)詞的過(guò)去式did標(biāo)志詞有：yest

2、erday, last week , last month, last year,時(shí)間段+ago,two years ago，in 1979，the day before yesterday,just now=a moment ago剛才（與現(xiàn)在無(wú)關(guān)的明確過(guò)去時(shí)間）4.過(guò)去進(jìn)行時(shí)過(guò)去進(jìn)行時(shí)：was/were+doing 標(biāo)志詞：at that moment, at this time of yesterday, at eight last night,the whole afternoon.32021/8/14n5.一般將來(lái)時(shí)一般將來(lái)時(shí)用will do/be going to do.標(biāo)志詞：t

3、omorrow,tomorrow morning,in the future, next week , next Sunday,in+一段時(shí)間，soon=right=at once很快，立刻.6.過(guò)去將來(lái)時(shí)：過(guò)去將來(lái)時(shí)：would dowould do 沒(méi)有什么標(biāo)志詞，通常用在從句里。 I didnt know if he would come.42021/8/14n7.現(xiàn)在完成時(shí)現(xiàn)在完成時(shí) has/have donen標(biāo)志詞：already, yet,ever曾經(jīng),never從未,just剛剛(與現(xiàn)在有關(guān)的模糊過(guò)去時(shí)間）,before，in the past 5 years, so far ,up to now, two times,for+時(shí)間段，since+時(shí)間點(diǎn)或從句n8.過(guò)去完成時(shí)過(guò)去完成時(shí) had donen標(biāo)志詞：by/by the end of+過(guò)去時(shí)間，by the year 2010.n如無(wú)標(biāo)志詞可根據(jù)