本文在一定数量语言材料的基础上论证“再”与“还”是两个性质不同的副词。“再”是谓中副词,主要表示增量;“还”是辖谓副词,主要表示情态。以往研究所发现的“再”与“还”的相异之处,大都与此有关。本文还对这两个副词表示“追加”义时的不对称情况,以及跟情态助动词和否定副词连用时出现的特殊情况作了一定程度的解释。 Based on a certain number of linguistic materials, this paper argues that “” and “” are two different adverbs. “Again ” is an adverb in the main, said incremental; “also ” is the jurisdiction of adverbs, mainly that modality. In the past, the research discovered that the differences between “re ” and “also ” are mostly related to this. The paper also expounds the asymmetry of the two adverbs when they express the meaning of “append ” and explain some of the special circumstances that arise when the modal auxiliary verbs and negative adverbs are used together.