Don't need do sth . 和Need'nt do sth的区别 Need do 和 need to do 区别

need do sth.\u548cneed to do sth.\u6709\u4ec0\u4e48\u533a\u522b

need do sth. \u4e2d\u7684need\u662f\u60c5\u6001\u52a8\u8bcd\uff0c\u540e\u9762\u8ddf\u52a8\u8bcd\u539f\u5f62\uff1bneed to do sth.\u4e2d\u4e00\u822c\u662f\u5b9e\u610f\u52a8\u8bcd\uff0c

need\u7684\u7528\u6cd5\u8bb2\u89e3\uff0c\u4f9b\u53c2\u8003\uff1a
\u4e00\u3001\u4f5c\u60c5\u6001\u52a8\u8bcd
1\uff0eneed\u4f5c\u60c5\u6001\u52a8\u8bcd\u65e0\u4eba\u79f0\u6216\u6570\u7684\u53d8\u5316\uff0c \u540e\u63a5\u52a8\u8bcd\u539f\u5f62\uff0c\u591a\u7528\u4e8e\u5426\u5b9a\u53e5\u548c\u7591\u95ee\u53e5\u4e2d\u3002\u5982\uff1aYou needn't worry.\u4f60\u4e0d\u5fc5\u62c5\u5fc3\u3002
2\uff0e\u7531need\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u5e38\u7528must\u6216have to;\u5426\u5b9a\u7b54\u8bed\u5e38\u7528needn't. \u5982\uff1a
\u2014Need I answer the question? \u6211\u9700\u8981\u56de\u7b54\u90a3\u4e2a\u95ee\u9898\u5417\uff1f
\u2014Yes, you must. /Yes, you have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u56de\u7b54\u3002/\u662f\u7684\uff0c\u4f60\u5f97\u56de\u7b54\u3002/No, you needn't.\u4e0d\uff0c\u4e0d\u5fc5\u4e86\u3002
3\uff0e\u7531must\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u7528must,\u5426\u5b9a\u7b54\u8bed\u7528needn't\u6216don't have to\u3002\u5982\uff1a
\u2014Must I do the work now? \u6211\u5fc5\u987b\u73b0\u5728\u5e72\u8fd9\u4e2a\u6d3b\u5417\uff1f
\u2014Yes, you must /have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u505a\u3002/No, you needn't /don't have to. \u4e0d\uff0c\u4f60\u73b0\u5728\u4e0d\u5fc5\u505a\u3002
\u4e8c\u3001\u4f5c\u884c\u4e3a\u52a8\u8bcd
need \u4f5c\u4e3a\u884c\u4e3a\u52a8\u8bcd\u6709\u4eba\u79f0\u548c\u6570\u7684\u53d8\u5316\uff0c \u540e\u9762\u53ef\u63a5\u540d\u8bcd\u3001\u4ee3\u8bcd\u3001\u52a8\u540d\u8bcd\u53ca\u5e26to \u7684\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\uff1b\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\u3001\u7591\u95ee\u53e5\u548c\u5426\u5b9a\u53e5\u4e2d\uff0c\u5982\uff1a
She needs help.\u5979\u9700\u8981\u5e2e\u52a9\u3002
I don't need to see the doctor.\u6211\u4e0d\u9700\u8981\u770b\u75c5\u3002
\u2014Do you need to go at once? \u4f60\u9700\u8981\u9a6c\u4e0a\u8d70\u5417\uff1f
\u2014Yes, I do.\u662f\u7684\uff0c\u6211\u5f97\u9a6c\u4e0a\u53bb\u3002
\u2014No, I don't.\u4e0d\uff0c\u4e0d\u7528\u9a6c\u4e0a\u8d70\u3002
need\u7684\u7528\u6cd5\uff1a
\uff081\uff09need\u8868\u793a\u201c\u9700\u8981\u201d\u3001\u201c\u5fc5\u987b\u201d\u3002\u4f5c\u4e3a\u60c5\u6001\u52a8\u8bcd\u4e3b\u8981\u7528\u4e8e\u5426\u5b9a\u53e5\u548c\u7591\u95ee\u53e5\uff0c\u65e0\u65f6\u6001\uff0c\u4eba\u79f0\u53d8\u5316\uff0c\u540e\u9762\u8ddf\u52a8\u8bcd\u539f\u5f62\u3002\u5176\u5426\u5b9a\u5f0f\u4e3a\uff1aneed not\uff08needn\u2019t\uff09\u3002\u5982\uff1a
You needn\u2019t try to explain. \u4f60\u4e0d\u9700\u8981\u89e3\u91ca\u3002
Need we stay here this evening? \u4eca\u665a\u6211\u4eec\u9700\u8981\u5728\u8fd9\u513f\u4f4f\u4e0b\u6765\u5417\uff1f

need do sth \u4e2d\u7684need\u662f\u60c5\u6001\u52a8\u8bcd\uff0c\u540e\u9762\u8ddf\u52a8\u8bcd\u539f\u5f62\u3002need to do sth \u4e2d\u4e00\u822c\u662f\u5b9e\u610f\u52a8\u8bcd\u3002

need\u7684\u7528\u6cd5\u8bb2\u89e3\uff0c\u4f9b\u53c2\u8003\uff1a
\u4e00\u3001\u4f5c\u60c5\u6001\u52a8\u8bcd
1\u3001need\u4f5c\u60c5\u6001\u52a8\u8bcd\u65e0\u4eba\u79f0\u6216\u6570\u7684\u53d8\u5316\uff0c \u540e\u63a5\u52a8\u8bcd\u539f\u5f62\uff0c\u591a\u7528\u4e8e\u5426\u5b9a\u53e5\u548c\u7591\u95ee\u53e5\u4e2d\u3002\u5982\uff1aYou needn't worry.\u4f60\u4e0d\u5fc5\u62c5\u5fc3\u3002
2\u3001\u7531need\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u5e38\u7528must\u6216have to;\u5426\u5b9a\u7b54\u8bed\u5e38\u7528needn't. \u5982\uff1a\u2014Need I answer the question? \u6211\u9700\u8981\u56de\u7b54\u90a3\u4e2a\u95ee\u9898\u5417\uff1f\u2014Yes, you must. /Yes, you have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u56de\u7b54\u3002/\u662f\u7684\uff0c\u4f60\u5f97\u56de\u7b54\u3002/No, you needn't.\u4e0d\uff0c\u4e0d\u5fc5\u4e86\u3002
3\u3001\u7531must\u5f15\u51fa\u7684\u4e00\u822c\u7591\u95ee\u53e5\uff0c\u80af\u5b9a\u56de\u7b54\u7528must,\u5426\u5b9a\u7b54\u8bed\u7528needn't\u6216don't have to\u3002\u5982\uff1a\u2014Must I do the work now? \u6211\u5fc5\u987b\u73b0\u5728\u5e72\u8fd9\u4e2a\u6d3b\u5417\uff1f\u2014Yes, you must /have to.\u662f\u7684\uff0c\u4f60\u5fc5\u987b\u505a\u3002/No, you needn't /don't have to. \u4e0d\uff0c\u4f60\u73b0\u5728\u4e0d\u5fc5\u505a\u3002
\u4e8c\u3001\u4f5c\u884c\u4e3a\u52a8\u8bcd
need \u4f5c\u4e3a\u884c\u4e3a\u52a8\u8bcd\u6709\u4eba\u79f0\u548c\u6570\u7684\u53d8\u5316\uff0c \u540e\u9762\u53ef\u63a5\u540d\u8bcd\u3001\u4ee3\u8bcd\u3001\u52a8\u540d\u8bcd\u53ca\u5e26to \u7684\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\uff1b\u53ef\u7528\u4e8e\u80af\u5b9a\u53e5\u3001\u7591\u95ee\u53e5\u548c\u5426\u5b9a\u53e5\u4e2d\uff0c\u5982\uff1a
She needs help\u3002\u5979\u9700\u8981\u5e2e\u52a9\u3002
I don't need to see the doctor\u3002\u6211\u4e0d\u9700\u8981\u770b\u75c5\u3002\u2014Do you need to go at once? \u4f60\u9700\u8981\u9a6c\u4e0a\u8d70\u5417\uff1f\u2014Yes, I do.\u662f\u7684\uff0c\u6211\u5f97\u9a6c\u4e0a\u53bb\u3002\u2014No, I don't.\u4e0d\uff0c\u4e0d\u7528\u9a6c\u4e0a\u8d70\u3002

need可以作情态动词也可以作普通动词。
当它是情态动词的时候,肯定形式就是need do sth.否定形式是needn\'t do sth.
当它是普通动词时候,肯定形式是need to do sth.否定形式是don\'t need to do sth.
重要的是,need当情态动词时,一般不用于肯定句~
且作为must提问的否定回答
must I do the homework
no,you needn\'t.

从语意上讲没多大差别,从语法来讲,前者是实义动词,后者need当做情态动词,就是词性不同造句什么的会不一样。望采纳~O(∩_∩)O~

第一个是说你做了本来没必要做的事,第二个是说这件事没必要做,你也没有做。

一个是实意动词需要。一个是情态动词,更can差不多,更委婉

第一个作实义动词

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