科技期刊英文摘要核心语义系统的三维空间——从主题词到主题概念

发布时间：2018-04-18 10:45

本文选题：英文摘要 + 主题概念　；参考：《中国外语》2017年04期

【摘要】：以往的主题词研究主要关注词汇之间的差异,却忽略了词汇共性体现出来的语域特征。本研究将语料库语言学的主题词分析法扩展到主题概念,以英文摘要中的正向主题概念为研究对象(positive key concept),利用UCREL USAS语义分析系统提取了科技论文英文摘要语料库的所有正向主题概念,即英文摘要语料库比通用语料库超用的具有显著意义的语义概念,然后对这些核心语义概念进行了深入分析,归纳了信息类、组织类、评价类三大类主题概念,构建出英文摘要核心语义系统的三维空间。接下来考察了每个类别里具有典型意义的通用主题概念,并从纵深的语步维度和横向的跨学科维度探讨了主题概念在分布上的差异性。研究发现,这三大类主题概念在句法、语义和语用功能上都有各自的特点,在不同语步和学科的分布也存在明显差异,从而证实了主题概念分析法在语体变异研究中的重要角色。主题概念分析法可以使关注点从词汇差异性研究转向词汇共性研究,构建出特定语篇的核心语义框架,为学术英语的语义研究提供崭新的视角。
[Abstract]:Previous studies focused on lexical differences, but ignored the register features of lexical commonalities.This study extends the subject word analysis of Corpus Linguistics to the concept of topic.Taking the positive key concept as the object of study, all the forward topic concepts in the corpus of English abstracts of scientific papers are extracted by using the UCREL USAS semantic analysis system.That is to say, the English abstract corpus has significant semantic concepts than the common corpus, and then makes a deep analysis of these core semantic concepts, and concludes three categories of thematic concepts: information class, organization class and evaluation class.The three-dimensional space of the core semantic system of English abstract is constructed.Then we examine the generic thematic concepts with typical meanings in each category and discuss the differences in the distribution of thematic concepts from the depth of the step dimension and the horizontal interdisciplinary dimension.It is found that these three categories of thematic concepts have their own characteristics in syntax, semantics and pragmatic functions, and there are obvious differences in the distribution of different steps and disciplines.Thus, it confirms the important role of thematic conceptual analysis in the study of stylistic variation.Thematic conceptual analysis can change the focus from the study of lexical differences to the study of lexical commonness, and construct the core semantic framework of specific discourse, which provides a new perspective for the semantic study of academic English.
【作者单位】：鲁东大学;北京语言大学;
【基金】：山东省研究生教育创新计划项目“基于学科背景的研究生学术素养培养模式研究”(SDYY15018) 山东省社科规划研究项目“英语科技论文模糊限制语研究”(13CWXJ20)的阶段性成果
【分类号】：H313

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