SAT语法中的时间状语从句时态

2022-05-24 12:48:10

  

  一.主从句时态呼应,即主句用现在时,从句也用现在时;主句用过去时,从句也用过去的某种时态,除此之外,主句用将来时,从句依然要用现在时。

  eg. Be careful when you cross the road。

  When he was seven years old, he could swim.

  When she leaves, she will turn off the light.

  二. 不同的时间状语需要搭配不同时态的使用:

  1.Often,usually----------动词原型do,does,am,is, are

  2.yesterday,last Sunday,in the past-------动词过去式did,was,were

  3.now--------be+doing

  4.while,at that time,-------was doing,were doing

  5.since从句,for 2 days,------have done,have been

  since+过去的某个时间点----had done,had been

  一般现在时:every…, sometimes, at …, on Sunday,

  一般过去时:yesterday, last week, an hour ago, the other day, in 1982, just now

  一般将来时:next…, tomorrow, in+时间,

  现在完成时:for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently

  过去完成时:before, by, until, when, after, once, as soon as

  过去进行时:this morning, the whole morning, all day, yesterday, from nine to ten last evening… when, while

  将来进行时:soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening

  以上就是关于“SAT语法中的时间状语从句时态”的内容,希望通过上述内容的学习,能够辅助大家更好的备考接下来的考试,预祝同学们在考试中取得高分成绩,早日实现留学梦想!更多精彩内容,敬请关注本频道的持续更新!


考试安排