Abstract
Traditionally it was regarded only as figurative expressions or a kind of rhetorical skill, for which the study on it was mostly confined to the literary and rhetorical level. With the development of western cognitive linguistics, Lakoff and Johnson made a breaking-through by publishing their book Metaphors We Live By. They argued that people perceive their experience and the outside world mostly in a metaphorical way. Since then, metaphor is not only taken as a term of language, but a kind of thought and action of people. Till now, researches on conceptual metaphor usually focus on rhetorical, syntactical and lexical level, few on discourse level, especially spoken discourse. The metaphorical nature of conceptual system has been broadly acknowledged. Due to its systematic and coherent features, conceptual metaphor enables people to think systematically and coherently, thus leads to better understanding and communication. On ground of the analysis above, this thesis selects some samples from the American TV show Revenge randomly and discusses how conceptual metaphor acts in spoken discourse based on the conceptual metaphor theory of Lakoff and Johnson. And we find that conceptual metaphor through the spoken discourse makes the discourse a coherenent and vivid one, thus enables people to understand each other easily and smoothly.
Keywords   conceptual metaphor   spoken discourse   discourse function

传统的观念将隐喻视为一种象征性的表达或是一种修辞技巧，因而对隐喻的研究大多局限在文学和修辞的层面上。随着西方认知语言学的发展，莱考夫和约翰逊发表了《我们赖以生存的隐喻》一书，对隐喻在认知语言学下的研究作出了突破性的贡献。他们认为，人们经历经验和感受外部世界的方式很大程度上是隐喻的。自此，隐喻不再仅仅是一个语言学的术语，而更多的融入了人们的思想和行为之中。至今对概念隐喻的研究大多数集中在修辞、句法、词汇等层面上，从语篇，尤其是口语语篇的角度进行的研究较新而且相对较少。概念系统的隐喻本质观得到了人们的广泛认可，正是因为概念隐喻具有系统性和连贯性，我们的隐喻思维才能够以系统和连贯的方式起作用，我们的隐喻语言表述才能够呈现出系统与连贯的特征, 而使得人们在交往时更易理解对方，并使交流更加形象生动。本文从美剧复仇第一季中随机抽取样本，运用莱考夫和约翰逊的概念隐喻理论对口语语篇样本进行抽样，来探索概念隐喻在口语语篇中的运作机制和作用。我们发现，概念隐喻的使用使得口语语篇更加连贯、生动，从而使人们更易理解对方所传达的信息，让交流变得流畅。
关键词  概念隐喻   口语语篇   语篇功能