needn't与don't need有何区别?
来源:百度知道 编辑:UC知道 时间:2024/05/11 21:32:28
请写几个例句。并说明区别
谢谢大家!
我要例句!
谢谢大家!
我要例句!
是这样的,needn't do 和 don't need to do 两者有些差别。
就像needn't have done 和 didn't need to do 一样。
从用法上,前者是情态动词,后者是实义动词。
从意义上,前者暗示已经做了,有“本不需要”的意思,后者暗示还没有做,就是纯粹地“不需要”。
如:You needn't do the housework.(说话时你已经做了家务)
You don't need to do the housework.(说话时你尚未做家务)
没有区别。
前者need是情态动词,后者是一般动词。
前者直接+名词或动词,后者+to do或名词。
I needn't have a break=I don't need to have a break.
我不需要休息。
情态动词
实义动词
前者的Need是情态动词
后者是行为动词
needn't 的need是情态动词
don't need 的need 是实义动词
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