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need to do sth实义动词 need doing sth,表示被动 人+need +to do 物+need +doing 物+need +to be done need doing 一、读音: 英 [niːd] [ˈduːɪŋ] 美 [nid] [ˈduɪŋ] 二、释义: 做某事需要… 三...

不是。 need to do(“需要;需要做”)的被动语态是:be needed to do。例如: Some form of encryption is needed (by them) to protect confidentiality and integrity of data.被动: They need some form of encryption to protect confide...

need doing=need to be done 需要被… doing现在分词在此表被动“需要被做”,相当于need to be done, 如:My watch needs repairing. =My watch needs to be repaired. 我的手表需要被修 扩展: need to do,如:need后加不定式,证明need为实义...

need to do需要做某事,用于主动语态中,主语为人; I need to have a rest.我需要休息一下。 need doing需要被怎样,用于主动语态中,主语为物。 The bike needs repairing.自行车需要被修理。

没有。 need: 1.sb need to do 例: He needs to do homework. 2.sth need to be done The bike needs to be repaired. 3.sth need doing=sth need to be done(和第二点可以相互转换的) 如上面那句也可以表示成: The bike needs repairing. ne...

needn't have done从用法上,是情态动词,didn't need to do是实义动词。 从意义上,needn't have done暗示已经做了,有“本不需要”的意思,didn't need to do暗示还没有做,就是纯粹地“不需要”。前者是过去将来时,后者是过去完成时。 具体区别...

简单初级的讲: need to do 需要做某事 need doing 是需要被做有被动的意思 如;I need to wash my clothes.My clothes need washing. need doing = need to be done I need to mend my bike.My bike needs mending. 具体的说: need to do sth实...

不同之处为: needn't have done表示某件事没必要做却已经做了。表示已经做了这件事。 didn't need to do指在过去某件事不必做,是否做了不清楚。 例句: needn't have done 1、We spent a hell of a lot of money that we needn't have spent. ...

没有need have done这种说法,只有needn’t have done (没必要做某事但做了),表责备之意,这里的need属于情态动词。这种用法的结构是情态动词+完成时态。need有两种词性, 一个是做情态动词 ,一个是实义动词。 而need to do的need是实义动词...

1.首先need to do 是需要做........,need 为实义动词。 don't need to 就是上面的否定形式。不需要做......这里面need 还是实义动词 2.needn't为情态动词。后面接实义动词原型。即needn't do ....意思是“不需要做....” 3.need to be done : 某...

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