“也A也B”“又A又B”是现代汉语中常见的并列式结构，均能表示情况或属性的并列，但在使用中又有不同表现。本文将立足功能语法理论，运用叙事语篇语法研究的成果，从共时层面，对二者进行对比分析。

文章共分为五章：第一章“绪论”，简要介绍了本文的选题依据和研究对象，同时对研究现状进行综述。第二章考察“也A也B”“又A又B”的篇章分布，认为二者均能分布在“前景、背景、环境、非事实”四个部分。第三章考察“也A也B”“又A又B”的句法功能，认为语篇中二者均能充当单句的构成成分和独立作复句，处在语篇的不同部分时，“也A也B”“又A又B”有不同的句法表现。第四章考察独立作复句或作谓语的“也A也B”“又A又B”处于语篇的不同部分时A、B对谓词的选用情况，认为二者均能选用行动动词和状态动词，但在动词小类的选用上存在差异。第五章“结语”，总结了全文的研究结果，并分析研究的不足。

文章从篇章角度出发，比较“也A也B”“又A又B”在叙事语篇中的篇章分布、二者处在篇章不同部分时的句法功能以及“A、B”对谓词的选用情况，以期在句法研究的基础上，进一步细化二者的异同，帮助使用者更好地掌握这两个并列式结构。

Both "Ye A Ye B" and "You A You B" are common juxtapositions in modern Chinese, both of which can indicate the juxtaposition of situations or attributes, but they have different expressions in use. Based on the functional grammar theory, this article will use the results of the study of narrative discourse grammar to make a comparative analysis of the two from the co-occurrence level.

The article is divided into five chapters: Chapter 1, "Introduction", briefly introduces the basis of the topic and the object of the study, as well as an overview of the current state of research. The second chapter examines the distribution of "Ye A Ye B" and "You A You B", and concludes that both can be distributed in four parts: "foreground, background, environment, and non-fact", but the specific distribution ,there are differences in their distribution. Chapter 3 examines the syntactic functions of "Ye A Ye B" and "You A You B", and concludes that both of them can be used as constituents of single sentences and independent compound sentences in different parts of the discourse." When they are in different parts of speech," Ye A Ye B" and "You A You B have different syntactic expressions. Chapter 4 examines the choice of predicates by A and B when they are in different parts of speech, and concludes that both can choose action and state verbs, but there are differences in the choice of verb subcategories. Chapter 5, "Conclusion", summarizes the results of the whole study and analyze the shortcomings of the study.

The article compares the chapter distribution of "Ye A Ye B" and "You A You B" in narrative discourse, their syntactic functions when they are in different parts of the chapter, and the choice of "A and B" for predicates from the chapter perspective. The purpose of this study is to further refine the similarities and differences between them on the basis of syntactic research, and to help users better grasp these two parallel structures.