话轮转换机制常用来分析机构话语和日常话语,主要指让出话轮,夺取话轮,守住话轮。本文通过分析从访谈节目收集来的数据,探讨访谈节目中主持人和嘉宾扮演的角色和作用,试着分析跨文化交际中产生的一些特有现象。大部分的话语研究显示:谈话节目中主持人占据主导地位,嘉宾是被动,被控制的角色。但本文通过数据分析发现跨文化交际不同于同种文化内部交流,过程更动态更复杂,充满变量,主持人不一定处于主导地位。 Turn-taking mechanism is often used to analyze institutional discourse and daily discourse, mainly to let out the turn, take the turn, keep the turn. By analyzing the data collected from the talk shows, this article explores the roles and roles of presenters and guests in the talk shows, and tries to analyze some peculiar phenomena arising from intercultural communication. Most discourse studies show that the presenters in the talk show dominate and the guests are passive and controlled roles. However, through data analysis, this paper finds that intercultural communication is different from that of the same kind of culture, the process is more dynamic and more complex, and full of variables. The moderator is not necessarily in the leading position.