need do和need to do的区别 need to do 和 need do的区别
Need do \u548c need to do \u533a\u522bneed 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 to do \u8868\u793a\u4e3b\u8bed\u4e0eneed\u8fd9\u4e2a\u52a8\u4f5c\u662f\u4e3b\u52a8\u5173\u7cfb\uff0c\r\n\u5982\uff1aI need to go now.\u6211\u73b0\u5728\u9700\u8981\u79bb\u5f00\u4e86\u3002\r\n\u800cneed doing sth\u8868\u793a\u4e3b\u8bed\u4e0eneed\u8fd9\u4e2a\u52a8\u4f5c\u662f\u88ab\u52a8\u5173\u7cfb\uff0c\r\n\u4f8b\u5982\uff1aThe windows need cleaning.\u7a97\u6237\u9700\u8981\u6e05\u626b\u3002
need do sth 中的need是情态动词，后面跟动词原形。need to do sth 中一般是实意动词。
need的用法讲解，供参考：
一、作情态动词
1、need作情态动词无人称或数的变化， 后接动词原形，多用于否定句和疑问句中。如：You needn't worry.你不必担心。
2、由need引出的一般疑问句，肯定回答常用must或have to;否定答语常用needn't. 如：
—Need I answer the question? 我需要回答那个问题吗？
—Yes, you must. /Yes, you have to.是的，你必须回答。/是的，你得回答。/No, you needn't.不，不必了。
3、由must引出的一般疑问句，肯定回答用must,否定答语用needn't或don't have to。如：
—Must I do the work now? 我必须现在干这个活吗？
—Yes, you must /have to.是的，你必须做。/No, you needn't /don't have to. 不，你现在不必做。
二、作行为动词
need 作为行为动词有人称和数的变化， 后面可接名词、代词、动名词及带to 的动词不定式；可用于肯定句、疑问句和否定句中，如：
She needs help。她需要帮助。
I don't need to see the doctor。我不需要看病。
—Do you need to go at once? 你需要马上走吗？
—Yes, I do.是的，我得马上去。
—No, I don't.不，不用马上走。
need do 此时，need 是情态动词，所以后面接动词原形，否定形式是needn't do
need to do 此时，need是实义动词，后面接动词不定式to do。否定形式是 don't/doesn't/didn't need to do
这两个没有主动被动的差别。
need doing 或者need to be done 此时表示被动
need直接do好像是作为助动词，加to是因为作为实义动词
need do中的need是情态动词，情态动词是没有被动语态的
need to do中的need 是实义动词
例：I need a pen. 否定 I needn't a pen.
I need to know. 否定 I don't need to know.
need接动词只能用不定式，即need to do sth
表被动的话，用need doing sth 和need to be done
扩展阅读：matebook14 ... air jordan 1 ... xbox series x ... macbook pro 15-inch ... xboxone欧版 ... java windowbuilder ... macbook pro 16 ... 人need doing物needtodo ... new balance ...
