| Acknowledgements | 第1-6页 |
| Abstract | 第6-7页 |
| 内容摘要 | 第7-8页 |
| Contents | 第8-10页 |
| A List of Figures | 第10-11页 |
| A List of Tables | 第11-12页 |
| Abbreviations | 第12-13页 |
| Chapter 1 Introduction | 第13-18页 |
| ·Research background | 第13-15页 |
| ·The definition and significance of amplifiers | 第13-14页 |
| ·Previous researches and the existing problem | 第14-15页 |
| ·Significance of the study | 第15-16页 |
| ·Research objectives | 第16-17页 |
| ·The organization of the paper | 第17-18页 |
| Chapter 2 Literature Review | 第18-37页 |
| ·The learner corpora and CIA(Computer Interlanguage Analysis) | 第18-21页 |
| ·Adverbials | 第21-24页 |
| ·Definitions and classifications of adverbials | 第21-22页 |
| ·Positions of adverbials in the clause | 第22-24页 |
| ·Amplifiers | 第24-29页 |
| ·Definitions and syntactic roles of amplifiers | 第24-26页 |
| ·Theoretical structure of amplifiers | 第26-28页 |
| ·Defined positions of amplifiers in this paper | 第28-29页 |
| ·Corpus-based studies on amplifiers revisited | 第29-35页 |
| ·From the position perspective | 第29-31页 |
| ·From the collocation perspective | 第31-33页 |
| ·Based on the learners'corpus | 第33-35页 |
| ·A summary | 第35-37页 |
| Chapter 3 Research Methods and Procedures | 第37-44页 |
| ·Research questions | 第37-38页 |
| ·Instrument | 第38-40页 |
| ·Corpora employed | 第38-39页 |
| ·Tagging the corpora | 第39-40页 |
| ·Software tools used | 第40页 |
| ·The research procedures | 第40-42页 |
| ·Identifying the coverage of the present study | 第40-41页 |
| ·Counting the frequency of selected amplifiers | 第41页 |
| ·Studying the proportions of syntactic roles of amplifiers | 第41-42页 |
| ·Studying the distribution of the positions of adverbial amplifiers | 第42页 |
| ·Interpreting the data | 第42-43页 |
| ·A summary | 第43-44页 |
| Chapter 4 Findings and Diseussion | 第44-72页 |
| ·The overall frequency of amplifiers across two corpora | 第44-49页 |
| ·Frequency of amplifiers across FLOB and CLEC | 第44-46页 |
| ·The possible reasons | 第46-49页 |
| ·The distribution of adverbial amplifiers and modifier amplifiers | 第49-52页 |
| ·The distribution of the syntactic role of adverbials | 第49-51页 |
| ·The possible reasons | 第51-52页 |
| ·The distribution of the positions of adverbial amplifiers | 第52-72页 |
| ·The comparison in maximizers | 第53-58页 |
| ·The comparison in boosters | 第58-67页 |
| ·The possible reasons | 第67-72页 |
| Chapter 5 Conclusion | 第72-78页 |
| ·Major findings of this research | 第72-74页 |
| ·Implications to EFL teaching and learning in China | 第74-76页 |
| ·Limitations and suggestions for further studies | 第76-78页 |
| References | 第78-82页 |
| Appendixes | 第82-94页 |
