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1、精品文档，仅供学习与交流，如有侵权请联系网站删除need用法小结一、用作情态动词表示必要，后接动词原形，即：need + do1.通常用在疑问句、否定句中。疑问式：Need +主语+ do?否定式：neednt + doNeed yougoyet? 你一定要去吗?No, Ineednt. 不一定要去。Youneednt clean the housenow. 你不必现在打扫房子。2. need引导的疑问句，肯定回答要用must。Need I call him up now? 我需要现在给他打电话吗?Yes, you must是的，需要打。No, you neednt不，不需要现在打。3. ne
2、ed have done的否定式或疑问式，表示“做了不必做的事”。neednt have done sth 本不必做某事(事实上却做了)Need +主语+ have done sth? 当时非得做某事吗？You neednt have told him because I had already told him about it . 你本没必要告诉他，因为我已经告诉他这件事了。Need you have sold the house? 你那时非得把房子卖掉吗？二、用作实义动词表示需要(require, want, lack)或义务。1.可用于肯定句、疑问句和否定句。肯定：need + to
3、dosth否定：dont / doesnt /didnt need + to dosth疑问：do +主语+ need to do sth?I need to consult a dictionary. 我需要查词典。Does she need to do the cooking? 她需要做饭吗?Yes, she does.是的，她需要做饭。No, she doesnt.不，她不必做饭。She doesnt need to do the cooking. 她不必做饭。2. need +名词They need my love and care.他们需要我的关爱。3. needdoing表示被动含
4、义。The clothes needwashing.这些衣服需要洗了。= The clothes needto be washed.三、用作名词Wearein need ofyour help.我们需要你的帮助。A friendin needis a friend indeed.患难见真情。There is no needto persuadehim to follow my advice .没必要说服他采纳我的意见。Theres no needforyouto startyet.你现在还不必动身There isnt much needforfurther research.没有必要进一步的实验。satisfy /meet their needs满足他们的需要【精品文档】第 页
