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英语中大多数第三人称代词和先行语出现在同一语句或相邻语句,但是有些代词则需向前追溯两个语句甚至更远距离,才能找到对应的先行语。为确保在回指解析的过程中,所有潜在的先行语都被纳入解析范围,本研究将修辞结构理论引入代词可及性的讨论,基于修辞结构分析提出了两个不同层面的结构分析单位,并以此为基础对英文书面语篇中的第三人称代词先行语的搜寻范围进行更为合理的界定。此搜寻模式在回指解析中的有效性通过一定数量的英文语料得到充分验证,尤其对远距离回指的解析效果十分理想。
Most third-person pronouns and antecedents in English appear in the same sentence or adjacent sentences, but some pronouns need to trace two sentences forward even more in order to find the corresponding antecedent. In order to ensure that all potential antecedents are included in the analytical scope during the analysis of anaphora, this study introduces the rhetorical structure theory into the discussion of pronouns accessibility. Based on rhetorical structure analysis, this paper proposes two structural analysis units at different levels, Based on this, a more reasonable definition of the search scope of the third person pronoun in English written discourse is made. The validity of this search mode in anaphora resolution is fully verified by a certain amount of English corpus, especially for the analysis of long-distance anaphoras.