初中英语语法点:如何表达本来该做某事

2024-07-25 11:49:00来源:网络

  初中英语语法,是初中英语中一个重要的板块。熟练的掌握这些语法知识,对于我们英语能力的整体提高,会有更好的帮助。那么具体的初中英语语法知识都包含了哪些呢?下面为大家整理了“初中英语语法点:如何表达本来该做某事”,供大家进行参考学习。

  should have done

  “should have + 动词的完成式”表示本应该做而实际上没有做,它的否定形式表示某种行为本不该发生但却发生了。有责备的意味。

  You should have started earlier, but you didn't.

  你本应该早点儿出发,但是你没有。

  You should have washed the wound.

  你应该已经洗好了伤口。

  She shouldn't have taken away my dictionary, for I wanted to use it.

  她本不应该拿走我的词典,因为我要用它。

  You shouldn't have been so rude to him.

  你本不应该对他那么粗鲁。

  注“should have + 完成式”虽然可以表猜测,但因为会造成歧义,应少用。

  ought to have done

  1、“ought to have +

  动词的完成式”表示过去应做某事而实际未做,它的否定形式表示本不应该做某事却做了(用法和should相同)。

  You ought to have helped him, but you didn't.

  你本应该帮助他但你没有。

  You ought to have studied harder.

  你本应该更努力学习的。

  He ought not to have stopped his work halfway.

  他本不应该做这项工作时半途而废。

  He oughtn't to have done that.

  他本来就不该做那件事。

  2、“ought to have + 动词的完成式”还可以用来表猜测。

  They ought to have arrived by now.

  现在他们想必已经到达。

  If he had started at nine o'clock, he ought to have been in London by

  eleven o'clock.

  如果他在九点出发,那他十一点钟该到达伦敦了。

  以上就是为大家整理的“初中英语语法点:如何表达本来该做某事”,希望可以帮助大家更好地学习初中英语语法,更多内容敬请关注!


本文关键字: 初中英语语法

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