| ACKNOWLEDGEMENTS | 第5-6页 |
| ABSTRACT | 第6-7页 |
| 摘要 | 第8-10页 |
| CONTENTS | 第10-13页 |
| LIST OFABBREVIATIONS | 第13-14页 |
| LIST OFTABLES | 第14-15页 |
| CHAPTER ONE INTRODUCTION | 第15-19页 |
| 1.1 Motive for the Study | 第15-16页 |
| 1.2 Significance of the Study | 第16-18页 |
| 1.3 The Layout of the Paper | 第18-19页 |
| CHAPTER TWO LITERATURE REVIEW | 第19-25页 |
| 2.1 Studies on the Development of Theme Theory | 第19-22页 |
| 2.1.1 Studies on the Development of Theme Theory Abroad | 第19-21页 |
| 2.1.2 Studies on the Development of Theme Theory at Home | 第21-22页 |
| 2.2 Studies on theApplication of Theme Theory | 第22页 |
| 2.2.1 Studies on theApplication of Theme Theory Abroad | 第22页 |
| 2.2.2 Studies on theApplication of Theme Theory at Home | 第22页 |
| 2.3 Studies on RWG and SUA | 第22-24页 |
| 2.3.1 Studies on RWG | 第23页 |
| 2.3.2 Studies on SUA | 第23-24页 |
| 2.3.3 Studies Combining RWG and SUA | 第24页 |
| 2.4 Summary | 第24-25页 |
| CHAPTER THREE THEORETICAL FRAMEWORK | 第25-37页 |
| 3.1 Concept of Theme | 第25-26页 |
| 3.2 Classification of Themes in Terms of Function | 第26-28页 |
| 3.2.1 Topical Theme | 第26页 |
| 3.2.2 Interpersonal Theme | 第26-27页 |
| 3.2.3 Textual Theme | 第27-28页 |
| 3.3 Classification of Themes in Terms of Complexity | 第28-30页 |
| 3.3.1 Simple Theme | 第28-29页 |
| 3.3.2 Multiple Theme | 第29-30页 |
| 3.3.3 Clausal Theme | 第30页 |
| 3.4 Classification of Themes in Terms of Markedness | 第30-32页 |
| 3.4.1 Theme in Declarative Clauses | 第30-31页 |
| 3.4.2 Theme in Interrogative Clauses | 第31-32页 |
| 3.4.3 Theme in Imperative Clauses | 第32页 |
| 3.4.4 Theme in Exclamative Clauses | 第32页 |
| 3.5 Theme and Transitivity System | 第32-37页 |
| 3.5.1 Theme in the Material Process | 第33-34页 |
| 3.5.2 Theme in the Mental Process | 第34页 |
| 3.5.3 Theme in the Relational Process | 第34页 |
| 3.5.4 Theme in the Behavioural Process | 第34页 |
| 3.5.5 Theme in the Verbal Process | 第34-35页 |
| 3.5.6 Theme in the Existential Process | 第35-37页 |
| CHAPTER FOUR RESEARCH METHODOLOGY | 第37-43页 |
| 4.1 Research Questions | 第37页 |
| 4.2 Data Collection | 第37-38页 |
| 4.3 Research Method | 第38-43页 |
| 4.3.1 Unit ofAnalysis | 第38-40页 |
| 4.3.2 Analytical Procedure | 第40-43页 |
| CHAPTER FIVE DATAANALYSIS | 第43-63页 |
| 5.1 A Contrastive Study of Theme Selection between RWGs and SUAs Based on Function | 第43-50页 |
| 5.1.1 Analysis of Topical Themes between RWGs and SUAs | 第44-45页 |
| 5.1.2 Analysis of Textual Themes between RWGs and SUAs | 第45-49页 |
| 5.1.3 Analysis of Interpersonal Themes between RWGs and SUAs | 第49-50页 |
| 5.2 A Contrastive Study of Theme Selection between RWGs and SUAs Based on Complexity | 第50-55页 |
| 5.2.1 Analysis of Simple Themes between RWGs and SUAs | 第51-53页 |
| 5.2.2 Analysis of Multiple Themes between RWGs and SUAs | 第53-54页 |
| 5.2.3 Analysis of Clausal Themes between RWGs and SUAs | 第54-55页 |
| 5.3 A Contrastive Study of Theme Selection between RWGs and SUAs Based on Markedness | 第55-57页 |
| 5.4 A Contrastive Study of Theme Selection between RWGs and SUAs Related to Transitivity System | 第57-61页 |
| 5.4.1 Analysis of Participants between RWGs and SUAs | 第58-60页 |
| 5.4.2 Analysis of Circumstantial Elements between RWGs and SUAs | 第60-61页 |
| 5.4.3 Analysis of Processes between RWGs and SUAs | 第61页 |
| 5.5 Summary | 第61-63页 |
| CHAPTER SIX DISCUSSION | 第63-71页 |
| 6.1 Influence of the Same Genre | 第63-64页 |
| 6.2 Cultural Factor | 第64-67页 |
| 6.2.1 High-context Culture versus Low-context Culture | 第65-66页 |
| 6.2.2 High-power-distance Culture versus Low-power-distance Culture | 第66页 |
| 6.2.3 Collectivism versus Individualism | 第66-67页 |
| 6.3 Language Feature | 第67-69页 |
| 6.3.1 Parataxis versus Hypotaxis | 第67-68页 |
| 6.3.2 Left Expansion versus Right Expansion | 第68-69页 |
| 6.4 Summary | 第69-71页 |
| CHAPTER SEVEN CONCLUSION | 第71-77页 |
| 7.1 Major Findings | 第71-74页 |
| 7.2 Implications | 第74-75页 |
| 7.2.1 Theoretical Implication | 第74页 |
| 7.2.2 Practical Implication | 第74-75页 |
| 7.3 Limitations and Suggestions for Further Research | 第75-77页 |
| REFERENCES | 第77-79页 |
