Abstract The development of new media enlarges the repertoire of semantic resources in creating a discourse. Apart from language, visual and sound symbols can all become semantic sources, and a synergy of different modality and symbols can be used to complete argumentative reasoning and evaluation. In the framework of multimodal argumentation and appraisal theory, this study conducted quantitative and multimodal discourse analysis on a new media discourse Building a community of shared future for humankind and found that visual symbols can independently fulfill both reasoning and evaluation in the argumentative discourse. An interplay of multiple modalities constructs a multi-layered semantic source, with verbal subtitles as a frame and a sound system designed to reinforce the theme and mood. In addition, visual modality is implicit in constructing the stance and evaluation of the discourse, with the verbal mode playing the role of “anchoring,” i.e. providing explicit explanation. A synergy of visual, acoustic, and verbal modalities could effectively transmit conceptual, interpersonal, and discursive meanings, but the persuasive result with the audience from different cultural backgrounds might be mixed.

中文翻译：

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多模态论证中的推理与评估

摘要新媒体的发展扩大了话语创作中的语义资源范围。除了语言之外，视觉和声音符号都可以成为语义来源，并且可以使用不同形式和符号的协同作用来完成论证推理和评估。在多峰论证与评价理论的框架下，本研究对新型媒体话语进行了定量与多峰话语分析，建立了人类共有的未来共同体，发现视觉符号可以在论证话语中独立完成推理与评价。多种形式的相互作用构成了多层语义源，以语言字幕为框架，以及旨在增强主题和气氛的声音系统。此外，视觉方式在建构话语的立场和评价时是隐含的，言语方式起着“锚定”的作用，即提供明确的解释。视觉，听觉和言语形式的协同作用可以有效地传达概念，人际和话语的含义，但来自不同文化背景的听众的说服力结果可能会混合。