学术论文关键词具有反映文献的主要内容或主要论域的功能。通过分析关键词的语篇功能,运用关联理论,从语用角度提出选取关键词的方法。关联性是语言交际的认知基础,这就要求关键词的选取应保持较高的逻辑关联性,从而能够帮助读者进行推理,建立最佳关联。 Key words of the academic thesis have the function of reflecting the main content or main discourse of the literature. By analyzing the discourse function of key words and applying the theory of relevance, this paper proposes a method of selecting key words from the perspective of pragmatics. Relevance is the cognitive basis of verbal communication, which requires the selection of keywords should maintain a high degree of logical relevance, which can help readers reasoning, to establish the best association.