[英语语法手册]虚拟语气 B
不用if的条件从句结构 在笔语中，条件从句有时可以不用连词小而把were，had或should移至主语之前。但如从句没有were，had或should，则一般不能这样做。如： Should he come，tell him to ring me up.他要是来了，让他给我打个电话。 Were I in your position，I would go.如果我处于你的地位，我就去。 Had they not helped us，our experiment would have faile...