问状语从句中的虚拟语气 最好有例题
问状语从句中的虚拟语气 最好有例题
1、用在由as if,as though引导的状语从句中,表示
和现在事实相反或对现在的怀疑,用过去时;表
示过去想象中的动作或情况,用过去完成时;表示
将来用would + 动词原形。
It seems as if the man were his brother.
This device operated as though it had been repaired.
2.用在lest, for fear that和in case引导的状语
从句中,这时谓语动词用should+动词原形
或动词原形。
She closed the windows lest she catch cold