| Abstract | 第1-4页 |
| 摘要 | 第4-8页 |
| Chapter Ⅰ Introduction | 第8-12页 |
| ·General Description of the Study | 第8页 |
| ·Aim of the Study | 第8-9页 |
| ·Need for the Study | 第9-10页 |
| ·Outline of the Thesis Structure | 第10-12页 |
| Chapter Ⅱ Literature Review | 第12-19页 |
| ·Previous Studies | 第12-13页 |
| ·Definition of terms | 第13-15页 |
| ·Definition of Politeness | 第13-14页 |
| ·Definition of Business Correspondence | 第14-15页 |
| ·Politeness and Business Correspondence | 第15页 |
| ·Classification of Business Correspondence | 第15-19页 |
| Chapter Ⅲ Theoretical Foundation | 第19-33页 |
| ·Politeness Theories | 第19-28页 |
| ·Grice's Cooperative Principle | 第19-21页 |
| ·Lakoff's View of Politeness | 第21-22页 |
| ·Leech's Politeness Principle | 第22-25页 |
| ·Brown and Levinson's Face Theory | 第25-28页 |
| ·Classification of Politeness Strategies | 第28-33页 |
| ·Positive Politeness Strategies | 第28-29页 |
| ·Negative Politeness Strategies | 第29-30页 |
| ·Bald-on-record Strategies and Off-record Strategies | 第30-33页 |
| Chapter Ⅳ Application of Politeness Strategies in BC | 第33-51页 |
| ·Application of Positive Strategies | 第33-42页 |
| ·Application of Negative Strategies | 第42-51页 |
| Chapter Ⅴ Methodology | 第51-54页 |
| ·Research Design | 第51-52页 |
| ·Data Collection | 第52页 |
| ·Research Procedures | 第52-54页 |
| Chapter Ⅵ Data Analysis and Results | 第54-75页 |
| ·Politeness Strategies in Collaborative BC | 第54-57页 |
| ·Sample Analysis: Collaborative BC Written by Chinese | 第54-55页 |
| ·Sample Analysis: Collaborative BC Written by native | 第55-57页 |
| ·Politeness Strategies in Convivial BC | 第57-60页 |
| ·Sample Analysis: Convivial BC Written by Chinese | 第57-59页 |
| ·Sample Analysis: Convivial BC Written by native | 第59-60页 |
| ·Politeness Strategies in Competitive BC | 第60-63页 |
| ·Sample Analysis: Competitive BC Written by Chinese | 第60-61页 |
| ·Sample Analysis: Competitive BC Written by native | 第61-63页 |
| ·Politeness Strategies in Conflictive BC | 第63-66页 |
| ·Sample Analysis: Conflictive BC Written by Chinese | 第63-65页 |
| ·Sample Analysis: Conflictive BC Written by native | 第65-66页 |
| ·Comparison and Analysis | 第66-75页 |
| ·Distribution of the Overall Use of Politeness Strategies in Two groups | 第67-72页 |
| ·Distribution of Politeness Strategies in the Four Types of BC | 第72-75页 |
| Chapter Ⅶ Conclusions | 第75-78页 |
| ·Major Findings | 第75页 |
| ·Implications | 第75-76页 |
| ·Suggestions for Further Study | 第76-78页 |
| APPENDIX: Examples of Sample Letters | 第78-82页 |
| REFERENCES | 第82-85页 |
| ACKNOWLEDGEMENTS | 第85-86页 |
