| 摘要 | 第1-5页 |
| Abstract | 第5-8页 |
| List of Tables | 第8-9页 |
| Chapter One Introduction | 第9-13页 |
| ·Research Background | 第9-10页 |
| ·Reasons of the Study | 第10-11页 |
| ·Research Questions | 第11页 |
| ·Structure of the Thesis | 第11-13页 |
| Chapter Two Literature Review | 第13-21页 |
| ·Definition and Categorization of Lexical Bundles | 第13-15页 |
| ·Definition of Lexical Bundles | 第13-14页 |
| ·Structural Classification of Lexical Bundles | 第14-15页 |
| ·Previous Empirical Studies on Lexical Bundles | 第15-21页 |
| Chapter Three Research Methodology | 第21-25页 |
| ·Data | 第21-22页 |
| ·Data Processing | 第22-25页 |
| Chapter Four Results and Discussion | 第25-54页 |
| ·Lexical Bundles in L1 Students' Academic Writing | 第25-29页 |
| ·Lexical Bundles in L2 Students' Academic Writing | 第29-36页 |
| ·Frequency Distributions of Lexical Bundles in L2 Students' Writing Compared with Those Used by L1 Students | 第29-32页 |
| ·Characteristics of Target Bundles in L2 Students' Writing | 第32-36页 |
| ·Lexical Bundles in FL Students' Academic Writing | 第36-54页 |
| ·Frequency Distributions of Lexical Bundles in FL Students' Writing Compared with Those Used by L1 Students | 第36-38页 |
| ·Characteristics of L1 Target Bundles in FL Students' Writing | 第38-43页 |
| ·Lexical Bundles in L2 Students' Writing | 第43-47页 |
| ·Frequency Distributions of Lexical Bundles in L2 Students' Writing Compared with Those Used by FL Students | 第47-50页 |
| ·Characteristics of L2 Target Bundles in FL Students' Writing | 第50-54页 |
| Chapter Five Conclusions | 第54-56页 |
| References | 第56-59页 |
| Appendices | 第59-79页 |
| Appendix Ⅰ | 第59-66页 |
| Appendix Ⅱ | 第66-73页 |
| Appendix Ⅲ | 第73-79页 |
| Acknowledgements | 第79页 |
