加的夫语法对悉尼语法的扩展：例证阐释

系统功能语法学派内部的悉尼语法和加的夫语法这两种主要模式之间存在一些差异。文章从功能句法和语义两个层次，通过对两种模式在四个方面异同的阐释．旨在说明加的夫语法在句法结构的描述以及对形式层和语义层的区分上是对悉尼语法的一种扩展。文章讨论的扩展主要体现在加的夫语法对“主要动词延长成分”表达意义的充分关注和说明项的扩充识别，对词组单位界定标准的不同处理和对相关单位的不同概括，对助动词类型的基于意义的更为明确的区分，以及对语气系统网络的进一步语义化等四个方面。

Extensions of the Cardiff Grammar over the Sydney Grammar

There are certain differences between the Sydney Grammar and the Cardiff Grammar which belong to Systemic Functional Linguistics.This paper aims to discuss extensions of the Cardiff Grammar over the Sydney Grammar in four respects concerning functional syntax and semantics.Through the comparison between the two models,the study indicates that the main extensions are reflected in the following four respects:(1) that the Cardiff Grammar bases the categorization of the "Main Verb Extension" mainly on its function,and that it recognizes more expounding items of the element than the Sydney Grammar;(2) that the Cardiff Grammar establishes different criteria from the Sydney Grammar with reference to the differentiation of different groups;(3) that the Cardiff Grammar bases the differentiation of different types of Auxiliaries on their distinct meaning;and(4) that the Cardiff Grammar semanticizes the Mood system network originating from the Sydney Grammar.