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高一英语语法惯用法:why not习惯上不与过去时间状语连用

2016-03-02 00:00:00浏览:
高一英语语法惯用法:why not习惯上不与过去时间状语连用  一、基本用法   why not后接动词,其意为你为什么不呢,它主要用于提出建议。
如:   Why not use both?
为什么不两者都用?
  Why not write from Lisbon?
干吗不从里斯本写信?
  But why not write him from Lisbon?
干吗不从里斯本给他写信?
  Youre looking tired.
Why not take a holiday?
你一脸倦容,怎么不休假呢?
  比较:   何不坐地铁去?
  正:Why not go by subway?
  正:Why dont you go by subway?
  我们碰个头讨论一下这件事不行吗?
  正:Why dont we meet and discuss it?
  正:Why not meet and discuss it?
  二、用法注意   该结构通常只能用于遥或将来,而不能用于过去。
如:   你昨天为什么不打扫房间?
  误:Why not clean the room yesterday?
  正:Why didnt you clean the room yesterday?