he talked a lot as if he knew everything in the world.as if 引导的方式壮语虚拟语气不是从句改变,主句与现在时态一致吗?怎么主句还用过去时?请指教

问题描述:

he talked a lot as if he knew everything in the world.
as if 引导的方式壮语虚拟语气不是从句改变,主句与现在时态一致吗?怎么主句还用过去时?请指教

这句话对了
主句的时态是随着情景的时态的变化而变化,过去说的,主句当然就得用过去时态了

as if 用虚拟语气时,从句中有种情况,第一,当从句和从句表示的是同时,在从句中就用过去式,不受主句时态的影响.如:He talked as if he knew everything.第二,当从句先于主句时,在从句中就用过去完成时态.如:He talked as if he had been to many countries.