An in-depth analysis of the grammatical structure of interactive language was conducted, and the usage and functions of language in social interaction were explored. Wiltschko demonstrated through examples how language adapts to the immediacy and dynamism of communication, and how grammar supports this interactivity. The book also discusses the application of interactive language in different contexts, including daily conversations, public speaking, and online communication. In addition, the author also proposed the grammar rules of interactive language and systematically elaborated on these rules.

1. Introduction

This article introduces the research fields and contributions of theoretical linguist M. Wiltschko, particularly her proposed "Universal Spine Hypothesis" and "Interactive Spine Hypothesis", and outlines the main content and structure of the book "Grammar of Interactive Languages".

2. Content Introduction

Wiltschko proposed in Chapter One that linguistic theories often overlook interactive language components such as "eh" and advocate exploring their formal attributes and syntactic foundations to establish the grammar of interactive language. She believes that interactive language has a hierarchical structure, influences propositional structure, and has background and response functions. It shares features with propositional language and is part of universal grammar. Studying interactive language helps to understand the commonalities of human language and the cognitive foundation of communicative competence.

3. Brief review

The book "The Grammar of Interactive Language" provides syntactic encoding for interactive language through the Interactive Spine Hypothesis, achieving syntactic standardization. This hypothesis expands the research scope of formal linguistics, taking into account interactive language and participant attitudes, and revises the fixed isolated system view of language in generative studies. At the same time, the hypothesis is consistent with the theoretical assumptions of functional linguistics and conversation analysis, emphasizing the role of the listener and the syntax of background concepts. The author believes that the relationship between language, thinking, and communication is consistent, and contextual variables gain new connotations. The interactive spine hypothesis provides a functional classification for interactive language, serves as a reference for cross linguistic research, and introduces a new paradigm for Chinese linguistics research. Luo Qiongpeng combines cross linguistic corpora to correspond Chinese sentence completion components with discourse coherence, temporal anchoring, and observational perspective layers, proposing a balance between formalism and functionalism. However, there are shortcomings in fixing dynamic pragmatic factors in static syntactic analysis in the book, such as the use of scripted dialogue boards that may limit the natural changes in context, and the interactive spine hypothesis needs further verification in real interactive environments.