这篇文章将以历史教科书为例,从“传信范畴”的角度去揭示真理的相对性及教科书是如何运用语言来选择和反映客观世界的,提出在教科书中传信语有时会起到逆向的作用,这在其他文体中是不多见的,从而提出可以通过传信语的使用情况来认识不同文体的特点和差别。 This article will take history textbook as an example to reveal the relativity of truth from the perspective of “transmission category” and how textbooks use language to choose and reflect the objective world. To reverse the role, which is rare in other genres, and thus put forward the use of the message can be used to recognize the characteristics of different styles and differences.