what's the special today? 和what special day is today?都对! 但what kind is the fish? 对,what's the kind of the fish? 不对 因为: what special day is today? what kind is the fish? what day is today?属于同一种用法, 但what's the special today?是歪打正着的 因为what's the date today中的date是名词,而what's the special today?中的special是形容词,不是同一种用法。 what's the special today?可解释为:今天有什么特殊的??所以也说得过去