2018-2019学年北师大版高中英语选修七学案 Unit20 Grammar
2018-2019学年北师大版高中英语选修七学案 Unit20 Grammar第1页

将来完成时和将来进行时

【归纳】

一、将来完成时

  将来完成时表示在将来某一时间之前完成的动作,并且往往对将来某一时间产生了影响。将来完成时的谓语由"shall / will + have +过去分词"构成。和一般将来时一样,主语是第一人称时用的shall也常被will所代替。如:

  By the end of the year I shall / will have saved 500 pounds.

  Before long, Jim will have forgotten all about this matter.

  将来完成时常与ever, never, soon等时间状语连用。如:

  Will you soon have finished reading the book?

  将来完成时常与时间或条件状语从句连用。如:

  When I have done that, I shall have done all I was supposed to do.

  If you come at six o'clock, I shall have got my car fixed.

  注意:在时间和条件状语从句中, 表示将来某时之前已完成或发生的事情用现在完成时。如:

  He will come to call you the moment he has finished his painting.

  We'll start at five o'clock if it has stopped raining by then.

二、将来进行时