who you are和 who are you的区别

who are you?

是基本的书面用语,语法\句式各处都很完整规范.书面的\官方的\平淡的问句.

who you are.

则一般常见口语中.其实这是一个相当简写的从句.

例如:I don't know who you are.我不晓得你是谁.

因为口语化的句子用法比较犀利,往往一针见血,省略修饰和铺设.

这样就演化出了从句直用的句子.去掉 I don't know 而直接问对方 Who you are.