在共时平面,“最好”无论作短语还是作语气副词,都能表达主观性,但作语气副词时,主观性最强。在历时平面,相对于现代汉语,明清时期作语气副词的“最好”在句法位置、语篇连接等主观性表现上受到的限制较多。语气副词“最好”可位于主语前也可位于主谓之间,位于主谓之间更能体现“最好”的交互主观性。 In synchronic plane, “best ” can express subjectivity both as a phrase and as a modal adverb, but it is the most subjective when used as a modal adverb. In the diachronic plane, compared with modern Chinese, “best ” used as a modal adverb in the Ming and Qing Dynasties is more restricted in the subjective performance of syntactic position and textual connection. Modal adverb “best ” can be located in front of the subject can also be located between the subject and the subject, between the subject and the subject can better reflect “best ” interactive subjectivity.