以往对承接复句的分析说明主要是从时间关系或顺序入手的。以新的视角从逻辑意义入手 ,可将承接复句分为时间承接与事理承接两类。综合考察“于是”连接的“事理承接”复句的语义、语法与语用 ,可发现 :前后逻辑语义的密切相关、动态性、完成性与描写性是这类承接复句的主要特征。 In the past, analysis of undertaking complex sentences shows that it is mainly from the time relationship or order. With a new perspective to start with the logical significance, can undertake the complex sentence is divided into time to undertake and reason to undertake two categories. By comprehensively examining the semantics, grammar and pragmatics of the complex sentences of “so doing” connected, "we can find that the close, dynamic, completeness and descriptiveness of the logical semantics around and behind are the main characteristics of such complex sentences.