常见八种时态标志词.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,常见八种时态标志词,1.,一般现在时,谓语用动词原形,do,或第三人称单数,does,形式标志词有：,every day,ev,e,ry Sunday,often,always,usually,sometimes,on Sundays,in the morning,on weekdays,once a week,等等,2.,现在进行时,am/is/are+,do,ing,形式标志词：now,at th,is time,at present,句首有Look!,Listen!,Hurry,！等警示语,3.,一般过去时,用动词的过去式,did,标志词有：yesterday,last week,last month,last year,时间段,+ago,two years ago，,in 1979,，,the day before yesterday,just now=a moment ago,刚才（与现在无关的明确过去时间）,4.,过去进行时,：,was/were+doing,标志词：at that moment,at this time of yesterday,at eight last night,the whole afternoon,.,5.,一般将来时,用,will,do/be going to do,.,标志词：tomorrow,tomorrow morning,in the future,next week,next Sunday,in+,一段时间，,soon=right=at once,很快，立刻.,6.,过去将来时：,would do,没有什么标志词，通常用在从句里。

I didnt know if he would come.,.,7.,现在完成时,has/have done,标志词：,already,yet,ever,曾经,never,从未,just,刚刚,(,与现在有关的模糊过去时间）,before,，,in the past 5 years,so far,up to now,two times,for+,时间段，,since+,时间点或从句,8.,过去完成时,had done,标志词：,by/by the end of+,过去时间，,by the year 2010.,如无标志词可根据句意，上下文，其他动词形式判断,.,。