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标题: 如何区别将来完成时、将来进行时和将来完成进行时 [打印本页]

作者: jakke 时间: 2012-6-13 17:36
标题: 如何区别将来完成时、将来进行时和将来完成进行时
本帖最后由 jakke 于 2012-6-13 17:38 编辑

（1）将来完成时的构成：will have done，表示到将来某一时刻已经完成的动作，必须和某个时间状语连用，强调到将来某一点时间动作的结束。

Workers will have completed the new roads by the end of this year.

（2）将来进行时的构成：will be doing，表示将来某个时候正在进行的动作或表示计划好的事，陈述将来的事实。

They will be arriving here tomorrow.

（3）将来完成进行时的构成：will have been doing，表示某种状况一直持续到说话人所提及的时间，从某一点发生, 一直延续到将来的某一点, 并且将可能延续下去，强调到将来某一点时间动作可能结束或延续。

By this time next week, I will have been working for this firm for twenty years.

By Friday midday, they will have been working on it for seven days.

（work on sth. 关于……的工作）

（4）在时间状语从句中，要用现在完成时代替将来完成时：

By the time I’ve completed this one, I’ll have been writing for six years.

到我写完这本书时，我将已经写了6年书了。

When I’ve built this one, I’ll have built five altogether.

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