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BBC news 2010-10-10 加文本

2010-10-10来源:和谐英语

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1.Fans of the former Beatle John Lennon, who was murdered 30 years ago, have been marking what would have been his 70th birthday.

would have been将来完成时

将来完成时的基本结构是 shall/ will + have +过去分词，用来表示在将来某一时间以前已经完成或一直持续的动作，往往对将来有影响，经常与before 或 by 引导的表示将来时间的状语连用，也可与before或by the time引导的现在时从句连用。例如：

They will have been married for 20 years by then.

到那时他们已经结婚20年了。

Before long he will have forgotten all about the matter.

不久以后他就会把这件事全忘记的。

We shall have learned 24 units by the end of this term.

到这学期末，我们将学完24个单元。

By the time you get home I will have cleaned the house from top to bottom.

你到家之前我将把房子彻底打扫一遍。