“语段表征理论(SDRT)”主张依赖语篇关系来构建具有层级性的“语段表征结构”。语段表征结构独特的构建过程以及用于回指确认的两个语篇约束规则,解决了其他理论所无法解决的问题,特别是能有效地解决句子、句群为先行语的回指问题。然而,SDRT也存在其不足之处,如,语篇关系的分类标准和话题的统领作用不明确导致了实际应用中的缺陷。 “Paragraph Representation Theory (SDRT) ” advocates relying on discourse relations to construct hierarchical “Paragraph Representation Structure ”. The unique construction of the segment representation and the two rules of discourse constraints for the confirmation of anaphora solve the problems that can not be solved by other theories, especially the anaphora, which can effectively resolve sentences and sentence groups as the antecedents. However, SDRT also has its shortcomings. For example, the classification standard of discourse relations and the unclear role of topics lead to defects in practical application.