关于engage in和be engaged in的区别(Engaging) in spare time activities with others helps us to meet our social needs while at the same time distrating us from our worries and tronbles括号的为什么不用过去式?be engaged in不是固定短语么
问题描述：
关于engage in和be engaged in的区别
(Engaging) in spare time activities with others helps us to meet our social needs while at the same time distrating us from our worries and tronbles括号的为什么不用过去式?
be engaged in不是固定短语么
答
这个不是过去时和现在时的关系而是主动与被动的关系.首先,engage in 本身是动词,而在这句话里有动词,所以它要被名词化.动词名词化加ing,或者ed表示主动,进行,或者被动完成.其次,在名词化的同时,他表示主动态,也就是...