My grandfather needs __(take) care of at homeneed doing 不是物作主语吗,可这是人.怎么回事?

need doing = need to be done
译为“需要被---"
My grandfather needs taking care of at home
=My grandfather needs to be taken care of at home.
我爷爷需要在家里被照顾
用法类似的：
want doing = want to be done
require doing = require to be done

在这里need doing 等于 need to be done
需要被怎样的意思
翻译过来就是 我的祖父在家需要被照顾。

呃,其实 need doing 是被动语态 相当于 need to be done 此处 My grandfather 是后面 take care of 这个动作的承受者,也就是所谓的宾语,提前做主语后就要被动,所以就用了need doing ,而常说的 need doing 主语为物 只是一般常见的句子.

need doing 是需要被做某事的意思
在这里指爷爷在家需要被照顾（有人照顾）
主语是My grandfather。