本文拟在系统功能语法的理论框架内研究双重谓语句的语篇功能,特别着重于语篇生成和实例系统。要了解语篇功能,首先要了解语篇,了解语篇与系统的关系,了解语篇如何生成。这就要求我们理解在语篇展开中始终起作用的语篇造义和实例系统。我们分析并对比了语篇1和语篇2,借以说明语篇造义是如何经过语境确认,语义生成和词汇语法生成而创造语篇的,并指出了两则语篇在型式呼应之间的差异。我们还分析和对比了语篇3_a和语篇3_b,借以说明实例系统在创造语篇和修改语篇中如何起作用,并指出语篇3_b如何在实例系统中作恰当的选择以弥补语篇3_a的不足。语篇1和语篇3_b的实例说明双重谓语句的语篇功能在于表示非意愿性结果。双重谓语的复合语义共同为语篇作出贡献,因而可以表示诸如临时性的偶发结果或临时性的异常结果。

This paper aims to look into the textual function of the English double-predicate clause within the framework of systemic functional grammar with special reference to logogenesis and instantial system. To understand textual function, it is necessary to understand text, to understand the relation between text and system, and to understand how text is generated. This calls for a clear idea of logogenesis and instantial system that are indispensable in the creation of meaning in the course of the unfolding of text. We outline how logogenesis works through contextual specification, semantic generation and lexico-grammatical generation in creating the texts by analyzing Text 1 and Text 2,and bringing to light the difference between the two in terms of resonance between logogenetic patterns.In addition, we show how instantial system operates in creating and revising the text by analyzing Text 3_a and Text 3_b,and showing how Text 3_b selects the appropriate options to improve what Text 3_a is inadequate for. Text1 and Text 3_b indicate that the DP clause serves the textual function by expressing non-volitional result.As the multiple aspects of the meaning of the clause combine to contribute to its textual function,it may express such niceties of meaning as temporary unusual result or temporary contingent result.