| ABSTRACT | 第1-6页 |
| 摘要 | 第6-12页 |
| List of Abbreviations | 第12-13页 |
| Chapter One Introduction | 第13-18页 |
| ·Research Background | 第13-15页 |
| ·Research Objectives | 第15-16页 |
| ·Significance of the Study | 第16-17页 |
| ·Structure of the Thesis | 第17-18页 |
| Chapter Two Literature Review | 第18-31页 |
| ·Definition and Classification of Lexical Chunks | 第18-19页 |
| ·Structural and Functional Classifications of Chunks | 第19-23页 |
| ·Relevant Studies on L2 Chunks | 第23-31页 |
| ·Representative Studies Abroad | 第23-26页 |
| ·Representative Studies at Home | 第26-31页 |
| Chapter Three Research Methodology | 第31-39页 |
| ·Research Questions | 第31-32页 |
| ·Identification of Lexical Chunks | 第32-34页 |
| ·The Operational Definition of Lexical Chunks | 第32-33页 |
| ·Chunks Identification and Retrieval | 第33-34页 |
| ·Research Design | 第34-39页 |
| ·The Corpus Involved | 第34-36页 |
| ·The Software Used | 第36-37页 |
| ·Data Analysis | 第37-39页 |
| Chapter Four Results and Discussion | 第39-59页 |
| ·The Distribution of Lexical Chunks | 第39-43页 |
| ·Descriptive Statistics of Lexical Chunks | 第39-41页 |
| ·General Comparison of Lexical Chunks in SECCL and WECCL Corpora | 第41-43页 |
| ·The Functional Distribution of Chunks in SECCL | 第43-55页 |
| ·Highly Recurrent Lexical Chunks in SECCL | 第44-46页 |
| ·Highly Recurrent Lexical Chunks in WECCL | 第46-49页 |
| ·The features of the Identified Lexical Chunks in SWECCL | 第49-55页 |
| ·Factors Accounting for the Differences between SECCL and WECCL | 第55-59页 |
| Chapter Five Conclusion | 第59-66页 |
| ·Findings of the this Study | 第59-61页 |
| ·Pedagogical Implications | 第61-63页 |
| ·Raising Awareness of Lexical Chunks | 第61-62页 |
| ·Combining Lexical Chunks with Grammar and Lexis in Language Teaching | 第62-63页 |
| ·Incorporating Lexical Chunks Instruction into Syllabus | 第63页 |
| ·Limitations of the Present Study | 第63-64页 |
| ·Suggestions for Further Research | 第64-66页 |
| Bibliography | 第66-70页 |
| Appendices | 第70-78页 |
| Appendix Ⅰ The most frequent 4-word chunks used in SECCL corpus | 第70-74页 |
| Appendix Ⅱ | 第74-78页 |
| Acknowledgements | 第78-79页 |
| 攻读学位期间发表的学术论文目录 | 第79-80页 |
