新概念英语第二册49-02
发布时间：2012-12-26 编辑：查字典英语网小编
Lesson 41 Do you call that a hat?
need的否定形式 : needn't don't need
regretted doing sth.
needn't have done : 原本不必做, 但是做了
You needn't have bought it.
remind sb. of sth.
needn't have done : 强调过去的动作不必做
needn't do : 现在的动作也不必做
never ＝ not...too...无论...也不为过
I can never thank you too much. : 感激不尽
Drinking water can never be too clean. 饮用水越干净越好.
A wife can never complain too much. 妻子怎么罗嗦也不为过.
need : 需要
needn't : 非实义动词, 情态动词, 无时态变化的, 也没有人称
don't need : 实义动词有任意一种时态, 有人称变化
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