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.
哪有need doing ？ need做实意动词，need to do sth need做情态动词，need do sth 没见过doing形式
远山和叶062014-11-02
need to do 中的need 是动词，它后边接动词不定式 need doing 中的need是系动词，它和be的用法是相同的 我们老师这么说的，应该是最简单的区分方法了吧~
爱理不理dream2014-11-02
need doing是need to be done的简写形式，其实就是need to do 的被动语态
美女9032014-11-02
当然有区别啦! need doing是指sth.需要干什么.例如：My bag needs washing. need to do 是指某人必须做某事．如：I need to do my homework. need to do的否定有两种，don't need to do 和needn't do ,但后者只能用于否定．相当于haven't to do.
