| Abstract | 第1-8页 |
| 摘要 | 第8-12页 |
| List of Abbreviations | 第12-9页 |
| List of Figures | 第9-10页 |
| List of Tables | 第10-12页 |
| Chapter One Introduction | 第12-16页 |
| ·Purposes and Significance of the Research | 第12页 |
| ·Background of the Research | 第12-14页 |
| ·Organization of the Thesis | 第14-16页 |
| Chapter Two Literature Review | 第16-29页 |
| ·Lexical Chunks | 第16-21页 |
| ·Definitions of Lexical Chunks | 第16-17页 |
| ·Classifications of Lexical Chunks | 第17-19页 |
| ·Functions of Lexical Chunks | 第19-21页 |
| ·Verb-centered Lexical Chunks (VCLC) | 第21-25页 |
| ·Colligation, Collocation and Chunk | 第21-23页 |
| ·The Central Role of Verbs in English Learning | 第23-24页 |
| ·The Working Definition of VCLC | 第24-25页 |
| ·P revious Researches on Lexical Chunks and L2 Writing | 第25-29页 |
| ·Researches on the Lexical Chunks and English Writing Abroad | 第25-26页 |
| ·Researches on the Lexical Chunks and English Writing in China | 第26-29页 |
| Chapter Three Theoretical Framework | 第29-36页 |
| ·The Cognitive Processes of Writing | 第29-32页 |
| ·The Cognitive Psychological Basis of Lexical Chunks in Writing Processes | 第32-36页 |
| Chapter Four Methodology | 第36-43页 |
| ·Research Questions | 第36页 |
| ·Research Design | 第36页 |
| ·Participants | 第36-37页 |
| ·Instrument | 第37-41页 |
| ·English Writing Test | 第37页 |
| ·Measurement of Writing Accuracy, Complexity and Fluency | 第37-40页 |
| ·Criteria for Identifying VCLC | 第40-41页 |
| ·Procedures | 第41页 |
| ·Data Collection and Analysis | 第41-43页 |
| Chapter Five Results and Discussion | 第43-54页 |
| ·Preliminary Data Analysis | 第43-47页 |
| ·L2 Writing Accuracy，Complexity and Fluency | 第43-46页 |
| ·The Use of VCLC | 第46-47页 |
| ·Results and Discussion for the Research Questions | 第47-54页 |
| ·Results and Discussion for Research Question One | 第47-51页 |
| ·Results and Discussion for Research Question Two | 第51-54页 |
| Chapter Six Conclusion | 第54-57页 |
| ·Main Findings | 第54页 |
| ·Limitations and Future Researches | 第54-55页 |
| ·Pedagogical Implications | 第55-57页 |
| References | 第57-64页 |
| Appendix I | 第64-65页 |
| Appendix II The Transcript of a Subject in the Elementary Group | 第65-66页 |
| Appendix III The Transcript of a Subject in the Intermediate Group | 第66-67页 |
| Appendix IV The Transcript of a Subject in the Advanced Group | 第67-68页 |
| Appendix V Raw Data of Accuracy, Complexity, Fluency and the Use of VCLC (N=90) | 第68-70页 |
| Acknowledgements | 第70页 |
