| 摘要 | 第1-7页 |
| Abstract | 第7-9页 |
| List of Tables | 第9-10页 |
| List of Abbreviations | 第10-13页 |
| Chapter One Introduction | 第13-16页 |
| ·Research Background | 第13-14页 |
| ·Significance of the Research | 第14-15页 |
| ·An Overview of the Thesis | 第15-16页 |
| Chapter Two Literature Review | 第16-30页 |
| ·Definition of Lexical Chunks | 第16-18页 |
| ·Categorization of Lexical Chunks | 第18-22页 |
| ·Functions of Lexical Chunks in Language Use | 第22-26页 |
| ·Lexical Chunks Enhance Learners’Pragmatic Competence | 第22-24页 |
| ·Lexical Chunks Enhance Learners’Discourse Understanding and Processing Capability | 第24-25页 |
| ·Lexical Chunks Enhance Learners’Learning Enthusiasm. | 第25-26页 |
| ·Related Studies on Lexical Chunks at Home and Abroad | 第26-30页 |
| ·Studies on Lexical Chunks in the West | 第26-28页 |
| ·Studies on Lexical Chunks in China | 第28-30页 |
| Chapter Three Research Design | 第30-35页 |
| ·Subject | 第30-31页 |
| ·Method | 第31-33页 |
| ·Data Collection Instruments | 第33页 |
| ·Data Analysis Methods | 第33-35页 |
| Chapter Four Data Presentation and Discussion | 第35-46页 |
| ·Statistical Results of the Number of Lexical Chunks | 第35-39页 |
| ·Statistical Results of the Number of Lexical Chunks in the Pretest | 第35-36页 |
| ·Statistical Results of the Number of Lexical Chunks in the Posttest | 第36-39页 |
| ·Statistical Results of the Composition Scores | 第39-43页 |
| ·Statistical Results of the Composition Scores in the Pretest | 第39-41页 |
| ·Statistical Results of the Composition Scores in the Posttest | 第41-43页 |
| ·Correlation Analysis of Lexical Chunks and Composition Scores | 第43-44页 |
| ·Discussion | 第44-46页 |
| Chapter Five Conclusion | 第46-52页 |
| ·Main Findings | 第46-47页 |
| ·Pedagogical Implications | 第47-50页 |
| ·Limitations of the Present Study | 第50页 |
| ·Further Suggestions | 第50-52页 |
| Bibliography | 第52-56页 |
| List of Appendices | 第56-62页 |
| Acknowledgements | 第62-63页 |
| 个人简历 | 第63页 |
| 发表的学术论文 | 第63页 |
