| Acknowledgements | 第1-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第6-9页 |
| Chapter 1 Introduction | 第9-12页 |
| ·The Background of the Study | 第9-11页 |
| ·The Structure of the Thesis | 第11-12页 |
| Chapter 2 Literature Review | 第12-31页 |
| ·Definition of Lexical Chunks | 第12-14页 |
| ·Classification of Lexical Chunks | 第14-16页 |
| ·Functions of Lexical Chunks | 第16-23页 |
| ·Enhancing the Fluency and Accuracy of Language Output | 第16-18页 |
| ·Easing the Burden of Language Processing | 第18-20页 |
| ·Increasing the Sense of Pragmatic Function | 第20-23页 |
| ·Findings about Lexical Chunks from Different Perspectives | 第23-27页 |
| ·Lexical Chunks in Corpus Linguistics | 第23-24页 |
| ·Lexical Chunks in Psycholinguistics | 第24-26页 |
| ·Lexical Chunks in Language Acquisition | 第26-27页 |
| ·Teaching Approaches Applying Lexical Chunks | 第27-29页 |
| ·The Lexical Approach by Michael Lewis | 第27-29页 |
| ·The Teaching Approach by Nattinger & DeCarrico | 第29页 |
| ·The Present Study of Lexical Chunks in China | 第29-31页 |
| Chapter 3 Methodology | 第31-43页 |
| ·Hypotheses | 第31-32页 |
| ·Participants | 第32页 |
| ·Instruments | 第32-33页 |
| ·Procedures | 第33-42页 |
| ·Awareness-raising Activities | 第33-35页 |
| ·Reinforcement Activities | 第35-38页 |
| ·Teaching Written Discourse with Lexical Chunks | 第38-42页 |
| ·Data Collection | 第42-43页 |
| Chapter 4 Results and Discussion | 第43-54页 |
| ·Statistical Description and Analysis of the Composition Scores | 第44-49页 |
| ·Statistical Description and Analysis of Lexical Chunks Used | 第49-52页 |
| ·Discussion | 第52-54页 |
| Chapter 5 Conclusion | 第54-58页 |
| ·Major Findings | 第54-55页 |
| ·Pedagogical Implications for EFL Teaching | 第55-57页 |
| ·Limitations and Suggestions for Future Research | 第57-58页 |
| BIBLIOGRAPHY | 第58-62页 |
| APPENDIX Ⅰ Raw Scores of Students Composition | 第62-63页 |
| APPENDIX Ⅱ Raw Scores of the Number of Lexical Chunks | 第63-64页 |
| PAPERS PUBLISHED | 第64页 |
