本研究基于语料库的研究方法,比较分析了英语语言学领域硕士论文与期刊论文中四词词串的种类、结构和功能特征。结果表明,种类上,硕士论文中四词词串的种类多于期刊论文;结构上,两者最常出现的词串都是介词类;功能上,两者都有大量的文本型词串和研究型词串。 Based on corpus-based research methods, this study compares and analyzes the types, structures and functional characteristics of the four-word lexicon in master’s thesis and journal articles in English linguistics. The results show that there are more four types of word strings in the master’s thesis than in the journal articles. In terms of structure, most of the word strings appearing in both are prepositions. In function, both have a large number of word-type strings and Research type string.