[供应]雅思班、安康雅思、澳博雅思培训班

雅思

时间状语

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

雅思

雅思

用一般过去时代替完成时

1) 构成will / be going to do sth.

2) 概念　

a. 状态完成：表示某事继续到将来某一时为止一直有的状态。

b. 动作完成：表示将来某一时或另一个将来的动作之前，已经完成的动作或一获得的经验。

They will have been married for 20 years by then.

You will have reached Shanghai by this time tomorrow.

雅思