as if 虚拟语气的问题,He talks about Rome as if he had been to there.为什么用talkes不用talked呢?

问题描述:

as if 虚拟语气的问题,He talks about Rome as if he had been to there.为什么用talkes不用talked呢?
He talks about Rome as if he had been to there.
明白从句表示与过去事实相反,可是什么是talkes不用talked呢?
He opened his mouth as if he would say something.
明白与将来事实相反,为什么主语的动词是opened不是opens?

lz进误区了,as if虚拟是对从句虚拟.第一句talks是真实的,been to there非真实.第二句同理谢谢!还有个问题 If I were you,I would join them.

would 可以写成will吗?if条件句里与事实相反就要虚拟,从句I were you非真实,主句join them也非真实(没有参加),所以两句都用了虚拟,would do 这里是对现在或将来虚拟,不能换!