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实义动词 need doing sth,表示被动 人＋need ＋to do 物＋need ＋doing 物＋need ＋to be done 请看下面的例子： 1．We need to collect the parcel before we leave for England．去英国之前,我们需要收拾好行李. 2．We need to tell him the truth．我们需要告诉他真相. 3．My car needs repairing．我的汽车需要修理.
