英语否定极性的学术语篇发生研究:系统功能语言学视角

文章在系统功能语言学框架内，采用语料库辅助的研究方法，以英国学术英语写作语料库（BAWE）和学术口语语料库（BASE）为语料，探讨英语否定极性的学术语篇发生特征。否定极性系统包含语法、半语法和词汇三种类型，其中词汇否定系统的子类型在书面语篇中发生的频次显著多于口语语篇，体现三重复合功能；而语法否定中的语气否定、半语法否定中的介词短语否定以及附加语否定在书面语篇中发生的频次则要显著少于口语语篇，体现单重或双重复合功能。否定极性类型总体呈现级阶上升、功能潜势单一化的倾向特征。英语否定极性系统的学术语篇发生特征是小句功能潜势的语法挤压所致。否定极性语法化、词汇化的不同发生潜势厘定有助于学习者学术话语交际的否定适用选择。 

A Logogenetic Study of Negative Polarity in English Academic Discourse: A SFL Perspective

Based on Systemic Functional Linguistics, taking a corpus-assisted approach, this study explores the logogenetic characteristics of negative polarity in English by adopting British Academic Written English (BAWE) and British Academic Spoken English (BASE) as corpus. The study finds that lexical negation in English written texts is significantly higher in frequency than that in spoken texts, realizing triple meta-functions; while mood negation, phrasal negation and adjunct group negation in written texts are significantly lower compared with spoken texts, realizing single or double meta-functions, which shows a discursive trend that meta-function realization by negative polarity becomes more simplified with the upgrade of clausal rank-scale. The study shows that the logogenetic characteristic of negative polarity system in English academic discourse could be attributed to the grammatical condensing in academic discourse. The different logogenetic potential of grammaticalization and lexicalization in negative polarity is conducive to the appliable choice of negative choice on the part of English learners in academic communication.