语气助词“了”有众多语义变体 ,本文着重探讨其中较难把握的一种 :“了”表动作已发生并兼表事态变化。文章用删略和变换分析等方法研究其语义内涵和“了”在“动词 +了”中的显现规律 There are many semantic variants of the modal particle “了”. This article focuses on one of the more difficult to grasp: “the” table movements have taken place and both changes in the table. The article uses the method of deletion and transformation to study its semantic meaning and the appearance of “the” in “verb +”