基于COCA语料库的动词“Derive”的扩展意义单位研究

A Corpus-Based Study of the Extended Unit of Meaning of the Verb “Derive” in COCA

摘要: 本研究基于美国当代英语语料库(COCA)，运用John Sinclair提出的“扩展意义单位”(EUM)模型，对动词“derive”的用法进行了系统性分析。文章首先通过检索高频搭配词，将其归纳为“收益类”、“知识与信息类”和“科技类”三个语义类别。随后，文章识别出与“derive”相关的四种主要类联接。在此基础上，研究进一步归纳出六种语义倾向，并最终分析了“derive”的语义韵。研究发现，动词“derive”在绝大多数语境中呈现积极的语义韵，即与获益、满足、启发等正面概念相关联；仅在如涉及不道德来源的收益或伦理争议的科学主题等少数特定语境下呈现消极的语义韵。文章旨在揭示词汇意义在真实语境中的构建过程，并为二语习得提供启示。

Abstract: Based on the Corpus of Contemporary American English (COCA), this study systematically analyzes the use of the verb derive within the framework of John Sinclair’s Extended Units of Meaning (EUM) model. First, the study identifies the high-frequency collocates of derive and categorizes them into three semantic groups: benefit-related, knowledge- and information-related, and science- and technology-related terms. It then identifies four major types of colligations associated with derive. On this basis, six semantic preferences are further identified, followed by an analysis of the semantic prosody of derive. The findings show that the verb derive exhibits a predominantly positive semantic prosody in the majority of contexts, being associated with positive concepts such as benefits, satisfaction, and inspiration. A negative semantic prosody is observed only in a limited number of specific contexts, such as those involving benefits obtained from unethical sources or scientific topics involving ethical controversies. This study aims to reveal how lexical meaning is constructed in authentic contexts and to provide insights into second language acquisition.