一年级英语语法:过去完成时

咏良 1172分享

  过去完成时是一年级英语常见的语法,不少同学表示对这类型的语法不是很熟悉,下面就是小编为大家整理的过去完成时语法介绍,希望对大家有所帮助!

  过去完成时介绍

  1 、过去完成时是一个相对时态,表示过去的过去,只有在两个过去发生的动作相比较时才可显示出来。

  e.g. As soon as we got to the station, the train had left.

  注:主从句表达的动作紧接时,即两动作发生的时间没有明显时间上的悬殊或空档时,主从句都可用一般过去时。

  e.g. Where did your brother study before he joined the army?

  2 、过去完成时可表示截止过去某一时间动作的总或动作的结束。

  e.g. By the end of last month. We had reviewed four books

  By eight o`clock, he had finished his homework.

  连用的时间状语

  by 1985, by eight o`clock, by then, by the end of last month, by the time when, when, as soon as, before 等连词引导的时间状语从句,表示主句动作结束的时间。

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