need的主语可是人可是物require的主语只可以是人needtodo表主动needdoing表被动
最佳答案-由提问者2006-09-1420:56:21选出1.want,require,worth(形容词)后面接doing也可以表示被动意义。
Yourhairwantscutting
Thebookisworthreading
Thefloorrequireswashing.
2.need既可以用needtobedone也可以使用needdoing,两种形式都表达被动的意义
Thehouseneedspainting=thehouseneedstobepainted.
Thewatchneededrepairing=thewatchneededtoberepaired.