be needed和need doing还有need to be done有啥区别的呢？

Question

如题所述

Answer 1

be needed是被动语态，表示，，，被需要如Enough time is needed.需要足够的时间。
need doing=need to be done表示主语需要被做，如
The room needs cleaning/to be
cleaned.房间需要打扫。追答

doing是动名词做宾语主动表示被动。

Answer 2

be needed被动结构。need doing和need to be done是相同的，都是主动表被动。指主语是物时的用法。仔细看下面例句哦！Two desks are needed in my room.我房间需要两张课桌。
The desks need cleaning/to be cleaned.桌子需要清干净。

Answer 3

need做行为动词物作主语时，后面的动词用ing或者说to be done。
作主语时，后面动词用不定式to do。

You need to wear warm clothes.
Your shoes need washing.
=Your shoes need to be washed.

Answer 4

need doing= need to be done 需要被做某事
be needed to do sth 需要某人或者某物来做某事