The author argues that discourse role switching is employed by Miss Bates as a politeness strategy to save her face and meanwhile serves as a writing technique to create the character,narrate the story and enhance comedic effects.

• 贝茨小姐言语中的话语角色转换是贝茨小姐用来保护面子的礼貌策略,也是Austen用来塑造人物、叙述故事和营造喜剧气氛的写作技巧。