中文摘要：礼貌是人类文明的一种象征，它在建立和维护社会和谐、规范个人行为方面起着至关重要的作用。本文主要研究礼貌原则在商务信函用语中的语用分析，首先介绍了礼貌原则的定义和类型。然后说明了礼貌原则在商务信函用语中的应用和商务信函用语的特点，本文基于Leech的礼貌原则，主要分析礼貌原则在商务英语信函写作中的应用。最后将说明礼貌原则在应用中需要注意的问题。这将有利于我们更好地了解并准确地书写商务信函，更得体地传递商务信息，从而在国际贸易往来中起到积极的作用。

关键词：礼貌原则；语用分析；商务信函用语

Contents

中文摘要

Abstract

1. Introduction-1

2. An Overview of Politeness Principles-2

2.1 Definition of Politeness Principle-2

2.2 Types of Politeness Principle-3

3. Practical Application of Politeness Principles in Pragmatics-3

3.1 The language features of Business Letter terms-3

3.2 The Application of Politeness Principles in business letters-5

3.2.1Tact Maxim and its application-5

3.2.2 Generosity Maxim and its application-5

3.2.3 Approbation Maxim and its application-6

3.2.4 Modesty Maxim and its application-6

3.2.5 Agreement Maxim and its application-6

3.2.6 Sympathy Maxim and its application-7

3.3 problems needing attention in the application of politeness principle in business English-7

4. Conclusion-8

References-9

Acknowledgements-11