| English Abstract | 第1-6页 |
| Chinese Abstract | 第6-9页 |
| Chapter One Introduction | 第9-13页 |
| ·Computer-mediated Communication | 第9页 |
| ·E-mail as a Specific Application | 第9-11页 |
| ·Goals for the Current Study | 第11-13页 |
| Chapter Two Theoretical Foundations | 第13-24页 |
| ·Context of Situation and Definitions of Register | 第13-14页 |
| ·Halliday’s Notion of Register | 第14-18页 |
| ·Definitions of Genre | 第18-19页 |
| ·Models of Genre Analysis | 第19-22页 |
| ·Hasan’s generic structural potential | 第19-21页 |
| ·Swales’move structure | 第21-22页 |
| ·Genre Variation | 第22页 |
| ·The Relationship between Register and Genre | 第22-24页 |
| Chapter Three Data Collection and Data Analysis | 第24-47页 |
| ·Data Collection | 第24页 |
| ·Data Analysis | 第24-47页 |
| ·Linguistic features of e-mail written by native and non-native speakers of English | 第25-32页 |
| ·Distinctions derived from register | 第32-39页 |
| ·Field of discourse: functional varieties | 第33-35页 |
| ·Tenor of discourse: degree of equality | 第35-36页 |
| ·Tenor of discourse: degree of formality | 第36-37页 |
| ·Mode of discourse: spoken or written | 第37-39页 |
| ·Distinctions derived from genre | 第39-47页 |
| ·Contrastive analysis of global patterns of e-mail | 第40-45页 |
| ·Contrastive analysis of type variations | 第45-47页 |
| Chapter Four Discussion | 第47-51页 |
| ·General Features of E-mail Language | 第47页 |
| ·Similarities and Differences in E-mails by Native and Non-native Speakers of English | 第47-51页 |
| ·Reasons for similarities | 第48-49页 |
| ·Reasons for differences | 第49-51页 |
| Chapter Five Conclusion | 第51-53页 |
| ·Significance of the Current Study | 第51页 |
| ·Limitations of the Current Research | 第51-52页 |
| ·Suggestions for Further Study | 第52-53页 |
| Notes | 第53-54页 |
| References | 第54-57页 |
| Appendices | 第57-62页 |
| Acknowledgements | 第62页 |
