the mind needs (exercise) as well as the body.请问括号里为啥不能填:to exercise?

问题描述:

the mind needs (exercise) as well as the body.请问括号里为啥不能填:to exercise?
虽然有need sth.但是也有Need to do sth.exercise不是也能做名词也能做动词吗?

因为exercise在括号处作为名词,need 后面可以直接接名词.但是need to后面要接动词.
如果要接动词的话,按照语义要接被动,所以要接need to be exercised.