| Abstract | 第1-6页 |
| 摘要 | 第6-12页 |
| Chapter 1 Introduction | 第12-16页 |
| ·Background of the study | 第12-13页 |
| ·Significance of the study | 第13-14页 |
| ·Overall structure of the thesis | 第14-16页 |
| Chapter 2 Literature review | 第16-26页 |
| ·Lexical bundles | 第16-22页 |
| ·Definition of lexical bundles | 第16-18页 |
| ·Classifications of multi-word units | 第18-22页 |
| ·Corpus-based studies on lexical bundles | 第22-26页 |
| ·Relevant corpus-based studies on lexical bundles abroad | 第22-24页 |
| ·Relevant corpus-based studies on lexical bundles in China | 第24-26页 |
| Chapter 3 Research design | 第26-29页 |
| ·Research questions | 第26页 |
| ·Corpus in this study | 第26-27页 |
| ·Native scholar academic writing corpus | 第26-27页 |
| ·Master of Arts corpus | 第27页 |
| ·Instrument | 第27页 |
| ·Data collection | 第27-29页 |
| Chapter 4 Results and discussions | 第29-57页 |
| ·The most frequently used 4-word lexical bundles in two corpora | 第29-33页 |
| ·The similarities and differences in the structures of bundles in two corpora | 第33-47页 |
| ·Examples and distribution of 4-word bundles with structural classification in two corpora | 第33-38页 |
| ·Structural similarities and differences in two corpora | 第38-47页 |
| ·The similarities and differences in the functions of bundles in two corpora | 第47-57页 |
| ·Examples of 4-word bundles with functional classification in two corpora | 第47-49页 |
| ·Sub-distributions of 4-word bundles and their similarities and differences with functional classification in two corpora | 第49-53页 |
| ·General distribution of 4-word bundles and their similarities and differences with functional classification in two corpora | 第53-57页 |
| Chapter 5 Conclusion | 第57-65页 |
| ·Major findings of the study | 第57-59页 |
| ·Major findings from structural perspective | 第57-59页 |
| ·Major findings from functional perspective | 第59页 |
| ·Implications of the study | 第59-62页 |
| ·Implications for English major MA students’ instruction and learning | 第60-61页 |
| ·Implications for English educators | 第61-62页 |
| ·Limitations of the present study and suggestions for future study | 第62-65页 |
| References | 第65-68页 |
| Acknowledgments | 第68-69页 |
| Appendix 1 | 第69-77页 |
| Appendix 2 | 第77-81页 |
| Appendix 3 | 第81-85页 |
| Academic Achievements | 第85页 |
