本文旨在探討在中文的日常生活對話當中，當說話者談論到他人過去事件時，語言與手勢的觀點表現。以McNeill曾經提到語言與手勢能夠共同表達觀點的說法作為根據，本研究也探討這些伴隨著語言的手勢是否和語言表達相同或者是不同的觀點。 本研究的架構根據Koven(2002)的說話者角色理論(speaker role inhabitance)和McNeill(1992)提出的事件當中人物的觀點(character viewpoint)和旁觀者的觀點(observer viewpoint)，定義了三中觀點—當下說話者觀點(speaker viewpoint)、事件當中人物觀點(character viewpoint)和旁觀者觀點(observer viewpoint)。而在手勢的分析上，本研究提出五個手勢特徵—手勢使用空間範圍，手勢使用單手或是雙手、手勢表達語意的stroke階段執行時間的長短、手勢stroke階段同一手部動作是否有重複的現象，以及手勢是否伴隨身體上其他的動作作為五個手勢觀點分析的關鍵指標。 量化研究發現，說話者在生活對話當中描述他人過去事件使用搭配語言的手勢，在每一種觀點的分布和語言上的表現不同。事件當中人物觀點在語言上雖然鮮少被採用，在手勢上卻是最常被表達的觀點。相反的，儘管當下說話者觀點在語言上也常出現，手勢上卻很罕見。另外，旁觀者觀點則在語言上和手勢上的分布都很頻繁。針對同一事件語言與手勢共同表達觀點的量化研究則發現，百分之六十四點七的手勢表達了和語言不同的觀點。因此，本研究說明儘管語言和手勢可以合作表達觀點，手勢卻更常表達和伴隨語言不同的觀點。 語言與手勢合作表達觀點的探討不僅說明語言與手勢如何互相協調組織要表達的訊息和觀點，更進一步引領我們去探討在人與人溝通時，語言與手勢展現的認知過程。本研究藉由兩個手勢產製的假說—the Lexical Semantics Hypothesis和the Interface Hypothesis，提供了針對本研究結果理論上的解釋。而每一個假說也都由相關的研究結果作為證據支持。另外，the Interface Hypothesis還可以針對語言與手勢在表達觀點時的分工現象提出合理的解釋。 / This thesis explores linguistic and gestural representations of viewpoints utilizing the descriptions of third-person past events within Chinese conversational discourse. Following McNeill’s idea that language and gesture are co-expressive in viewpoints, the present study also attempts to investigate whether speakers’ speech-accompanying gesture works in collaboration with language in expressing the same or different viewpoints. The framework of this study utilizes Koven’s (2002) framework of speaker role inhabitance and McNeill’s (1992) notion of character and observer viewpoint, and defines three viewpoints—speaker, character and observer viewpoint. In analyzing gestural viewpoints, the present study recognizes five gestural features—gestural space, handedness, stroke duration, frequency, and the involvement of other parts of the body as five distinctive criteria for use in identifying different viewpoints. Quantitative study of linguistic and gestural viewpoints shows that speech-accompanying gesture in the descriptions of third-person past events within conversational contexts displays different patterns from that of those found in language in the distributions of the three viewpoints. Character viewpoint, which is rarely adopted in language, is the most often conveyed viewpoint in gesture. On the other hand, despite the fact that speaker viewpoint is also commonly expressed in language, it rarely occurs in gesture. Observer viewpoint, in addition, is frequently seen in both the linguistic and gestural channels. With respect to the collaborative expressions of viewpoints in language and gesture concerning a description of the same event, quantitative study shows that 64.7% of all gestures produced in the current data represent a viewpoint different from that conveyed in language. Therefore, this study suggests that while language and gesture are co-expressive in terms of viewpoints, gesture more often collaborates with the accompanying speech in representing different viewpoints. The collaborative expressions of viewpoints in language and gesture suggest how speech and gesture coordinate with each other in organizing information and expressing different viewpoints also lead us to see the cognitive process that underlies both linguistic and gestural modalities within daily human communication. Two hypotheses—the Lexical Semantics and the Interface Hypothesis are referred to in order to provide theoretical accounts for the findings in this study. Each hypothesis is also supported by different pieces of evidence and percentages of gestures produced in the current data. The Interface Hypothesis can further provide an explanation concerning the division of labor between language and gesture in expressing viewpoints, which the Lexical Semantics Hypothesis cannot supply.