| 摘要 | 第4-5页 |
| Abstract | 第5-6页 |
| Contents | 第7-9页 |
| List of Tables and Figures | 第9-10页 |
| List of Abbreviations | 第10-11页 |
| Chapter One Introduction | 第11-15页 |
| 1.1 Background of this study | 第11-12页 |
| 1.2 Significance and objectives of this study | 第12-13页 |
| 1.3 Research design | 第13-14页 |
| 1.4 Organization of the thesis | 第14-15页 |
| Chapter Two Literature Review | 第15-26页 |
| 2.1 Previous studies on verb tense function | 第15-22页 |
| 2.1.1 Previous studies on verb tense function in general | 第15-17页 |
| 2.1.2 Previous studies on verb tense function in academic discourse | 第17-22页 |
| 2.2 Previous studies on differences in academic writing between foreign language learners and native speakers | 第22-24页 |
| 2.3 Summary | 第24-26页 |
| Chapter Three Theoretical Bases | 第26-43页 |
| 3.1 Appraisal systems in discourse | 第26-30页 |
| 3.1.1 Martin's appraisal systems | 第26-28页 |
| 3.1.2 Evaluation in tense | 第28-30页 |
| 3.2 Generic features of MA thesis and discourse function of citation verbs | 第30-33页 |
| 3.2.1 Genres of academic discourse | 第30-31页 |
| 3.2.2 Structure of MA thesis | 第31-32页 |
| 3.2.3 Discourse function of citation verbs in literature review section in MA thesis | 第32-33页 |
| 3.3 Citation verbs in academic discourse | 第33-41页 |
| 3.3.1 Citation verbs | 第33-34页 |
| 3.3.2 Classifications of citation verbs | 第34-40页 |
| 3.3.2.1 Thompson & Ye's (1991) classification | 第35-38页 |
| 3.3.2.2 Hyland's (1999, 2002) classification | 第38-40页 |
| 3.3.3 Tenses of citation verbs | 第40-41页 |
| 3.4 Summary | 第41-43页 |
| Chapter Four Methodology, Results and Discussion | 第43-52页 |
| 4.1 Research method | 第43-45页 |
| 4.1.1 Data collection | 第43-44页 |
| 4.1.2 Software used in this study | 第44页 |
| 4.1.3 Data analysis | 第44-45页 |
| 4.2 Research procedures | 第45-47页 |
| 4.3 Results and discussion | 第47-50页 |
| 4.4 Summary | 第50-52页 |
| Chapter Five Evaluative Function of Tense Viewed from Two Cases | 第52-66页 |
| 5.1 Distribution of citation verbs and their tenses in the two cases | 第52-55页 |
| 5.2 Intrinsic evaluative function of tenses in the two cases | 第55-61页 |
| 5.2.1 Present simple tense | 第55-58页 |
| 5.2.2 Past simple tense | 第58-59页 |
| 5.2.3 Present perfect tense | 第59-61页 |
| 5.3 Evaluative function evoked by shifts in tense in the two cases | 第61-64页 |
| 5.3.1 Evaluative function evoked by shifts in tense in American case | 第61-62页 |
| 5.3.2 Evaluative function evoked by shifts in tense in Chinese case | 第62-64页 |
| 5.4 Summary | 第64-66页 |
| Chapter Six Conclusions and Implications | 第66-70页 |
| 6.1 Summary of major findings | 第66-68页 |
| 6.2 Implications of this study | 第68页 |
| 6.3 Limitations and suggestions for further study | 第68-70页 |
| References | 第70-74页 |
| Appendices | 第74-82页 |
| Appendix Ⅰ Details of CESLC | 第74-77页 |
| Appendix Ⅱ Details of NESLC | 第77-80页 |
| Appendix Ⅲ List of Citation Verbs | 第80-82页 |
| Acknowledgements | 第82页 |
