本文拟从认知功能的视角出发研究双重谓语的语篇功能,特别着重研究DP句在怎样的语篇环境中发挥功能。这就引导我们研究基本主题及其语义结构。研究结果发现DP句的直接环境由处于DP句之前的先行过程和处于DP句之后的结尾过程构成。我们研究了先行过程对DP句的要求,先行过程的各种语言体现以及先行过程与DP句连接的方式。由于语境的呼唤可以引出DP句,我们接着研究了不同语境提供先行过程的多种情况。随后我们研究了DP句对结尾过程的要求,结尾过程的语言体现,以及结尾过程的语义功能。这样我们就获得了DP句直接环境的全景,从而了解了DP句是在怎样一个复杂的环境中发挥它的语篇功能。

This paper aims to study the textual function of the double predicate clause with special reference to the basic-level topic and its semantic structure from a cognitive-functional approach. The preliminary research results show that the immediate discourse environment in which the DP clause functions is made up of the prior process that goes before it and the ending process that comes after it. A detailed study is conducted of the prior process, including the resonance it imparts to the DP clause, the linguistic forms it takes and the ways it is related with the DP clause. As the emergent pattern may acquire added value in the context of situation, it follows that the context may imply the prior process for the DP clause. In fact, different kinds of context may cause the emergence of the DP clause. A careful study is also made of the ending process, including what the DP clause expects of it, the linguistic forms it takes and the semantic functions it performs. All this brings to light the full view of the complicated environment in which the DP clause operates. And this is in fact how the DP clause performs its function in various settings in discourse.