一引言熟语以其极强的生动性和表现力,受到政治评论家们的偏爱,在时政评论文中发挥了不可或缺的作用。从篇章语言学的角度来看,熟语在嵌入篇章的过程中,发挥了自身独有的特点,起到了构建篇章的功能。其中在交际语用层面上,熟语在篇章中可以发挥很多特定的功能,包括简化功能、缩减论证功能等等,从而有助于实现政治评论的号召功能和信息功能。本文采用篇章语言学的 I. INTRODUCTION With its vividness and expressiveness, the familiar phrase has been favored by political commentators and played an indispensable role in the political commentary. From the perspective of discourse linguistics, idioms have played their own unique features in the process of embedding texts, and have played the function of building texts. Among them, at the communicative and pragmatic level, idioms can play many specific functions in the texts, including simplifying the functions and reducing the argumentation function, which can help to fulfill the call and information functions of political commentary. This article uses discourse linguistics