“盖”在古汉语中除被用作名词、动词两类实词外,更多的是被用作发语词、副词、连词,以及系词(判断词)与疑问代词等虚词。但到目前为止,国内语言学界却只对其前者有统一的认识和一致的提法,而对其后者却没有统一的认识和一致的提法。正确认识“盖”的词性及用法,对推动人们对它的学习与研究大有好处。为此,本文姑置其前者不论,专就其后者谈谈个人的看法。 Apart from the two types of real words used as noun and verb in ancient Chinese, “cover” is more used as a pronoun, an adverb, a conjunction, and a function word such as interrogative pronouns and interrogative pronouns. So far, however, the domestic linguistics community has only unified understanding and consistent formulation of the former, but there is no unified understanding and consensus on the latter. Correct understanding of the “cover” part of speech and usage, to promote people’s learning and research on its benefits. To this end, this article regardless of their predecessors, specifically on the latter to talk about personal views.