| 摘要 | 第1-4页 |
| Abstract | 第4-8页 |
| Chapter One Introduction | 第8-11页 |
| ·Significance of the study | 第8-9页 |
| ·The objective of the study | 第9页 |
| ·Organization of this thesis | 第9-11页 |
| Chapter Two Literature review | 第11-18页 |
| ·Previous study on request speech act abroad | 第11-13页 |
| ·Request speech act study in the field of cross-cultural studies | 第11-12页 |
| ·Ervin-Tripp’s investigations on request speech act of English native speakers | 第11-12页 |
| ·Blum-Kulka and Olshtain’s CCSARP | 第12页 |
| ·Request speech act study in the field of interlanguage pragmatics | 第12-13页 |
| ·Previous request speech act study in the field of pragmatics at home | 第13-14页 |
| ·Previous study on emails | 第14-16页 |
| ·Studies of Emails from genre and stylistics perspectives | 第14-15页 |
| ·Studies of Emails from sociological perspective | 第15页 |
| ·Studies of Emails from pragmatic perspective | 第15-16页 |
| ·The politeness study in emails discourse | 第15-16页 |
| ·The request study in email discourse | 第16页 |
| ·Summary | 第16-18页 |
| Chapter Three Theoretical framework | 第18-28页 |
| ·The speech act theory | 第18-19页 |
| ·Request speech act | 第19-25页 |
| ·Forms of request | 第20页 |
| ·Strategies of request | 第20-22页 |
| ·Modifications of request | 第22-24页 |
| ·Internal modification (downgraders and upgraders) | 第22-24页 |
| ·External modification grounders | 第24页 |
| ·Social variables in the use of request strategies | 第24-25页 |
| ·Politeness Theory | 第25-27页 |
| ·Leech’s politeness principle | 第25-26页 |
| ·Brown & Levinson’s face-saving view | 第26-27页 |
| ·Summary | 第27-28页 |
| Chapter Four Methodology and discussion | 第28-48页 |
| ·Data collection | 第28-30页 |
| ·Subjects and data | 第28-29页 |
| ·The format of email discourse | 第29-30页 |
| ·Results and discussion | 第30-47页 |
| ·Forms of request in English email texts of ICC | 第30-32页 |
| ·Language forms of request | 第30-31页 |
| ·Perspective of request | 第31-32页 |
| ·Strategies of request in English email texts of ICC | 第32-37页 |
| ·Main strategies of request: direct and indirect | 第32-33页 |
| ·Sub-strategies of request | 第33-37页 |
| ·Social variables in the use of request strategies in English email texts of ICC | 第37-44页 |
| ·Power in the use of request strategies English email texts of ICC | 第37-38页 |
| ·The degree of imposition in the use of request strategies English email texts of ICC | 第38-39页 |
| ·Social distance in the use of request strategies English email texts of ICC | 第39-41页 |
| ·Email discourse analysis from social variables | 第41-44页 |
| ·Modifications of request in English email texts of ICC | 第44-47页 |
| ·Internal modifications of request | 第45-46页 |
| ·External modifications of request: supportive moves | 第46-47页 |
| ·Summary | 第47-48页 |
| Chapter Five Findings and Implications | 第48-52页 |
| ·Major findings | 第48-50页 |
| ·The choices of request forms in English email texts of ICC | 第48页 |
| ·The choices of request strategies in English email texts of ICC | 第48-49页 |
| ·The social variables in English email texts of ICC | 第49-50页 |
| ·The choices of modifications in English email texts of ICC | 第50页 |
| ·Pedagogical implications | 第50-52页 |
| ·The importance of developing linguistic knowledge | 第50-51页 |
| ·The importance of developing pragmatic knowledge | 第51-52页 |
| Chapter Six Conclusion | 第52-53页 |
| References | 第53-56页 |
| List of Tables and Figures | 第56-57页 |
| Appendix | 第57-60页 |
| Acknowledgements | 第60-61页 |
| 攻读硕士学位期间的研究成果 | 第61页 |
