现在完成时怎样使用?答:1.现在完成时常用的时间状语有lately,recently,just,already,yet,up to now,till now,so far,to this day,in the past few years/months/weeks/days,over the past few years,during the last three months,for the last few centuries,through centuries,throughout history等。 2.在时间状语从句中,谓语动词...
现在完成时的时间状语及其用法答:时间使用 1与现在有关的过去点时间 recently,lately,already,yet,before,still 2与现在有关的频度时间 ever,never,once,twice,three times,several times,often,seldom,always,time and time again 3与过去有关的现在点时间 just,now,today,tonight,this week,this year this morning,this afternoon,thi...
现在完成时的用法?答:现在完成时常与不确定的过去时间状语,如:just, yet, before, recently, once, lately等;也可以同表示濒度的时间状语连用,如often, ever, never, sometimes, twice, on several occasions等;也同包括现在时间在内的时间状语连用,如now, today, this morning, this year, this month等,但不能同特定的时间状语...