2022下半年大学英语四级语法知识:比较since和for

2022-11-24 08:20:00来源:网络

  面对英语四级考试,很多考生都非常的迷茫,不知道有哪些知识点和核心考点。今天我们为大家整理了2022下半年大学英语四级语法知识:比较since和for,供各位考生参考。

  2022下半年大学英语四级语法知识:比较since和for

  11.12 比较since和for

  Since 用来说明动作起始时间,for用来说明动作延续时间长度。

  I have lived here for more than twenty years.

  I have lived here since I was born..

  My aunt has worked in a clinic since 1949.

  Some new oilfields have been opened up since 1976.

  I have known Xiao Li since she was a little girl.

  My brother has been in the Youth League for two years.

  I have not heard from my uncle for a long time.

  注意:并非有for 作为时间状语的句子都用现在完成时。

  I worked here for more than twenty years.

  (我现在已不在这里工作。)

  I have worked here for many years.

  (现在我仍在这里工作。)

  小窍门: 当现在完成时+一段时间,这一结构中,我们用下面的公式转化,很容易就能排除非延续动词在完成时中的误使。

  1) (对) Tom has studied Russian for three years.

  = Tom began to study Russian three years ago, and is still studying it now.

  2) (错) Harry has got married for six years.

  = Harry began to get married six years ago, and is still getting married now.

  显然,第二句不对,它应改为 Harry got married six years ago. 或 Harry has been married for six years.

  2022年12月大学英语四级考试语法大全目录

  以上就是新东方在线英语四级语法频道给大家整理的“2022下半年大学英语四级语法知识:比较since和for”相关内容,预祝大家高分通过大学英语四级考试!


英语四级无忧计划立减1000元

本文关键字: 英语四级语法

扫码即刻查分 四六级最新答案

四六级好课 海量资料定期更新

更多资料
更多>>
更多内容
更多>>
更多公开课>>
更多>>
更多资料
无标题文档

2022年9月英语四级考试成绩查询官网入口|查询时间

无标题文档 无标题文档 无标题文档 无标题文档