英语篇章的话题系统

A Topic System of English Texts

本文首先明确话题和话题链的定义,从纵向和横向对话题句或链类型进行分类,描写英语话题的横向发展和纵向发展。根据话题的语义延续性以及话题句或链之间的层次,从三个方面区分话题链,最后把所有各个层次上的话题链类型归结于句子链、超句话题链和篇章话题链等类型,从而构建出整个英语篇章的话题系统。

This paper begins with defining the term ＂topic＂ and ＂topic chain＂, and then classifies the varying types of topic chains from the horizontal and vertical perspectives, which helps to describe the development of the topics. From the point of view of semantic continuity and ranking of topics, topic chains are classified hierarchically from three perspectives. A topic system of English texts should be formulated based on （1） sentence topic chains, （2）super-sentence topic chains, and （3）text topic chains.