礼貌的语言能缩短交际距离、缓解紧张或消除冲突。礼貌原则的各项准则是对礼貌话语的语言机制的总结和阐述。只有遵守了礼貌原则 ,才能很好地保持和维护一定的交际距离 ,从而有效地完成交际行为 Polite language can shorten the communication distance, relieve tension or eliminate conflicts. The rules of the politeness principle are the summary and elaboration of the language mechanism of polite discourse. Only by observing the principle of politeness can we maintain and maintain a good communicative distance so as to effectively accomplish communicative behaviors