even if &even though 意思基本相同,表示“即使”.而as though的意思和as if 相同,表示“仿佛”.所以前两者应该引导让步状语从句,而后面的引导虚拟语句.e.gI love my mother,even if/though she strict to me.He glared at me,as if I have borrowed his money.