及物性视角下环境类TED演讲的生态话语分析
Ecological Discourse Analysis of Environmental Speeches in TED from the Perspective of Transitivity

本文基于“以人为本”生态哲学观，以系统功能语言学中的及物性系统为理论框架，研究环境类TED演讲语篇中的语言特点并分析该语篇中所蕴含的生态主义思想，旨在探讨该类语篇中所体现的演讲者与观众，人与自然之间的生态关系。研究发现：环境类演讲语篇主要通过及物性系统中的物质过程，关系过程和心理过程来构建演讲者与观众以及人与自然之间的生态关系，体现了“以人为本”的生态观；物质过程构建了人类，自然社会中的其他物种，以及自然之间相互影响，相互依存的生态关系；关系过程和心理过程则构建了人与自然平等以及演讲者与听众之间和谐的生态关系。
Based on the ecological philosophical concept of “human-centeredness” and the transitivity system in systemic functional linguistics, this paper studies the linguistic characteristics of environmental TED Talks and analyzes the ecological ideas embedded in the TED Talks, aiming at exploring the ecological relationship between the speaker and the audience, and between human beings and the nature embodied in this kind of TED Talks. It is found that the environmental speech discourse mainly constructs the ecological relationship between the speaker and the audience as well as between man and nature through the material, relational and psychological processes in the material system, reflecting the ecological concept of “human-centeredness”; the material process constructs the ecological relationship of mutual influence and interdependence among human beings, other species in the natural society as well as nature; the material process constructs the ecological relationship of mutual influence and interdependence among human beings, other species in the natural society as well as nature. The material process constructs the ecological relationship between human beings, other species in the natural society, and nature; the relational process and the psychological process construct the ecological relationship between human beings and nature on an equal footing as well as the harmonious relationship between the speaker and the audience.