如题所述
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
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
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第1个回答 推荐于2018-02-24
need 可以作为 和
情态动词 need 后接 原型 need do or need not do
实意动词
need to do or donot need to do本回答被提问者和网友采纳
情态动词 need 后接 原型 need do or need not do
实意动词
need to do or donot need to do本回答被提问者和网友采纳
第2个回答 2016-10-26
词汇分析
need not to do中need是情态动词 需要做;通常用于疑问句、否定句、条件句、 whether(if) 名词从句或含否定意义的句子中。
don't need to中need是实意动词 必须; 不得不;
词汇分析
need 情态动词
1.Give it directly to him; there is no need to do it through me.
你就直接交给他，不必要我转手。
2.All you need to do is gently agitate the water with a finger or paintbrush
你只需要用手指或刷子轻轻地搅动水。
3.We need to do something about the sag.
我们须把下沉的地方修整一下。
4.They also give you the tools you need to do all of this.
它们还为您提供了进行这些工作所需的工具。
need是实意动词
1.You mean I don't need to come to work tomorrow?
你是说我明天不用来上班了？
2.I don't need to be free if you could stay with me.
当我说如果你可以一直跟我在一起，我便可以不再需要自由。
3.I'm sure I don't need to do this.
我想我可能不需要这么做。
need not to do中need是情态动词 需要做;通常用于疑问句、否定句、条件句、 whether(if) 名词从句或含否定意义的句子中。
don't need to中need是实意动词 必须; 不得不;
词汇分析
need 情态动词
1.Give it directly to him; there is no need to do it through me.
你就直接交给他，不必要我转手。
2.All you need to do is gently agitate the water with a finger or paintbrush
你只需要用手指或刷子轻轻地搅动水。
3.We need to do something about the sag.
我们须把下沉的地方修整一下。
4.They also give you the tools you need to do all of this.
它们还为您提供了进行这些工作所需的工具。
need是实意动词
1.You mean I don't need to come to work tomorrow?
你是说我明天不用来上班了？
2.I don't need to be free if you could stay with me.
当我说如果你可以一直跟我在一起，我便可以不再需要自由。
3.I'm sure I don't need to do this.
我想我可能不需要这么做。
