| Chapter One INTRODUCTION | 第1-15页 |
| ·Research Orientation | 第11页 |
| ·Rationale for the Research | 第11-13页 |
| ·Research Questions | 第13-14页 |
| ·Organization of the Thesis | 第14-15页 |
| Chapter Two LITERATURE REVIEW | 第15-32页 |
| ·Definition of Lexical Chunks | 第15-16页 |
| ·Identification of Lexical Chunks | 第16-18页 |
| ·Classification of Lexical Chunks | 第18-23页 |
| ·Classification of Lexical Chunks in Terms of Structure | 第18-21页 |
| ·Classification of Lexical Chunks in Terms of Function | 第21-23页 |
| ·The Role of Lexical Chunks in Language Acquisition | 第23-26页 |
| ·Supporting the Development of Syntactic Rules | 第23-25页 |
| ·Easing the Language Processing | 第25页 |
| ·Facilitating the Language Production | 第25-26页 |
| ·Lexical Chunks in Written Discourse | 第26-30页 |
| ·Characteristics of Lexical Chunks in Written Discourse | 第27-29页 |
| ·Application of Lexical Chunks into Writing Class | 第29-30页 |
| ·The Present Study | 第30-32页 |
| Chapter Three METHOD OF RESEARCH | 第32-35页 |
| ·Participants | 第32页 |
| ·Instruments | 第32页 |
| ·Procedure | 第32页 |
| ·Data Collection | 第32-35页 |
| Chapter Four RESULTS AND DISCUSSION | 第35-47页 |
| ·Quantitative Analysis | 第35-40页 |
| ·General Descriptive Statistics | 第35-36页 |
| ·Within-group Comparison on Four Structural Types of Lexical Chunks | 第36-37页 |
| ·Between-group Comparison on Four Structural Types of Lexical Chunks | 第37-38页 |
| ·Significant Difference Analysis by T-test | 第38-40页 |
| ·Qualitative Analysis | 第40-47页 |
| ·Illustration of Characteristics of the Lexical Chunks in Two Groups | 第41-46页 |
| ·Summary of Differences of the Lexical Chunks between Two Groups | 第46-47页 |
| Chapter Five CONCLUSIONS, LIMITATIONS, SUGGESTIONS AND IMPLICATIONS | 第47-53页 |
| ·Conclusions | 第47-48页 |
| ·Limitations of the Study | 第48页 |
| ·Suggestions for Further Study | 第48-49页 |
| ·Pedagogical Implications | 第49-53页 |
| ·Adjustment of Teaching Materials | 第49页 |
| ·Design of Lexical Chunks-based Exercises | 第49-53页 |
| BIBLIOGRAPHY | 第53-58页 |
| APPENDIX A | 第58-60页 |
| APPENDIX B | 第60-62页 |
| PAPERS PUBLISHED | 第62页 |
