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since从句的用法

时间: 楚欣650 分享

  下面是小编整理的一些关于介词since从句的用法的总结, 希望能帮助大家更好地认识since从句,学好英语。

  1. Since从句为非延续性动词的过去时或现在完成时,时间的起点应该从从句动作完成时刻算起。

  例如:

学习啦在线学习网   Things have changed a lot since I wrote to you last time.

  自我上次给你写信之后,情况已发生了很大的变化。

学习啦在线学习网   She has lived with us since she has come here.

学习啦在线学习网   自从她来到这里,就一直和我们住在一起。

  2. Since从句为延续性动词的一般过去时,表示动作或状态的结束。其含义与动词的词义恰好相反,具有否定意味。

  例如:

学习啦在线学习网   All has changed since he was at home.

  自从他离开家以后,这里的一切都变了。

  I haven’t written to her since she lived in London.

  自从离开伦敦以来,我还没有给她写过信。

  He has never been to see me since I was ill.

  自从我病愈以来,他一直没有来看我。

学习啦在线学习网   Two years have passed since I last smoked.

  我戒烟已经两年了。

学习啦在线学习网   但如果since从句是延续性动词的现在完成时,则表示动作由开始延续至说话的时候,具有肯定意味。

  例如:

  He has never been to see me since I have been ill.

  自从我生病以来,他一直没有来看我。

  She has talked little since she has stayed at home.

  自从她呆在家里以后,就很少讲话。

学习啦在线学习网   Since we have owned a car, we have gone camping every year.

  自从我们有了汽车后,年年都去野营

  3. 在现代英语中,since从句是延续性动词的一般过去时,有时候也可以表示肯定意味。此时,多半用ever来加强since的语义。

  例如:

学习啦在线学习网   She has known me ever since she was a child.

学习啦在线学习网   她从小就认识我了。

学习啦在线学习网   I have live here ever since I was born.

  我生下来就住在这里。

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