| Acknowledgments | 第4-5页 |
| 摘要 | 第5-6页 |
| Abstract | 第6-7页 |
| List of Abbreviations | 第11-12页 |
| Chapter One Introduction | 第12-16页 |
| 1.1 Research background | 第12-13页 |
| 1.2 Research motivations and objectives | 第13-14页 |
| 1.3 Organization of the thesis | 第14-16页 |
| Chapter Two Literature Review | 第16-26页 |
| 2.1 Amplifiers | 第16-19页 |
| 2.1.1 Definition and classification of amplifiers | 第16-18页 |
| 2.1.2 Amplifiers in academic writing | 第18-19页 |
| 2.2 Extended units of meaning | 第19-21页 |
| 2.2.1 Lexical grammar and EUM | 第19-20页 |
| 2.2.2 Co-selection and EUM | 第20页 |
| 2.2.3 The model of EUM | 第20-21页 |
| 2.3 Previous studies | 第21-26页 |
| 2.3.1 Previous studies abroad | 第22-23页 |
| 2.3.2 Previous studies at home | 第23-26页 |
| Chapter Three Research Design | 第26-30页 |
| 3.1 Research questions | 第26页 |
| 3.2 Corpora | 第26页 |
| 3.3 Research instruments | 第26-28页 |
| 3.4 Research procedures | 第28-30页 |
| Chapter Four Results and Discussion | 第30-56页 |
| 4.1 Frequency features of high-frequency amplifiers | 第30-31页 |
| 4.2 The EUM of high-frequency maximizers in IJA Corpus and MA Corpus | 第31-42页 |
| 4.2.1 The EUM of totally in IJA Corpus and MA Corpus | 第31-33页 |
| 4.2.2 The EUM of entirely in IJA Corpus and MA Corpus | 第33-36页 |
| 4.2.3 The EUM of fully in IJA Corpus and MA Corpus | 第36-39页 |
| 4.2.4 The EUM of completely in IJA Corpus and MA Corpus | 第39-42页 |
| 4.3 The EUM of high-frequency boosters in IJA Corpus and MA Corpus | 第42-53页 |
| 4.3.1 The EUM of very in IJA Corpus and MA Corpus | 第42-50页 |
| 4.3.2 The EUM of clearly in IJA Corpus and MA Corpus | 第50-53页 |
| 4.4 Summary | 第53-56页 |
| Chapter Five Conclusion | 第56-60页 |
| 5.1 Major findings | 第56-57页 |
| 5.2 Pedagogical implications | 第57页 |
| 5.3 Limitation of this research and suggestions for further studies | 第57-60页 |
| References | 第60-64页 |
| 攻读硕士学位期间科研情况 | 第64-65页 |
