| Abstract | 第1-5页 |
| 摘要 | 第5-9页 |
| 1. Introduction | 第9-13页 |
| ·Background of the Research | 第9页 |
| ·Significance of the Research | 第9-10页 |
| ·Organization of the Thesis | 第10-13页 |
| 2. Literature Review | 第13-23页 |
| ·Definition of Lexical Chunks | 第13-14页 |
| ·Classification of Lexical Chunks | 第14-15页 |
| ·Identification of Lexical Chunks | 第15-16页 |
| ·Function of Lexical Chunks | 第16-19页 |
| ·Promoting Fluency in Language Using | 第17页 |
| ·Overcoming the Influence of Negative Transfer | 第17-18页 |
| ·Enhancing Language Pragmatic Competence | 第18页 |
| ·Strengthening Learning Confidence and Enthusiasm | 第18-19页 |
| ·Previous Studies on Lexical Chunks | 第19-23页 |
| ·Previous Studies on Lexical Chunks Abroad | 第19-20页 |
| ·Previous Studies on Lexical Chunks at Home | 第20-23页 |
| 3. Methodology | 第23-29页 |
| ·Research Questions | 第23页 |
| ·Research Methods | 第23-25页 |
| ·Corpus-based Approach | 第23-24页 |
| ·Quantitative and Qualitative Analysis | 第24页 |
| ·Questionnaire Survey | 第24-25页 |
| ·Interview | 第25页 |
| ·Research Procedures | 第25-28页 |
| ·The Procedure of Selecting Samples | 第25-26页 |
| ·The Standard for Evaluating the Compositions | 第26-28页 |
| ·Software Used in the Study | 第28-29页 |
| 4. Data Analysis and Discussion | 第29-43页 |
| ·General Description of the Use of Lexical Chunks | 第29-30页 |
| ·Analysis of Lexical Chunks in High-grade Group and Low-grade Group | 第30-32页 |
| ·Relationship between Lexical Chunks and Writing Achievement | 第32-33页 |
| ·Questionnaire Survey Analysis | 第33-39页 |
| ·Interview Analysis | 第39-40页 |
| ·Summary of the Findings | 第40-43页 |
| 5. Implications on English Teaching and Learning | 第43-49页 |
| ·From the Teachers’ Aspect | 第43-44页 |
| ·Expanding Professional Knowledge Continuously | 第43页 |
| ·Changing the Traditional Teaching Method | 第43-44页 |
| ·Cultivating Students Independent Learning Ability | 第44页 |
| ·From the Students’ Aspect | 第44-49页 |
| ·Strengthening the Awareness of Lexical Chunks | 第44-45页 |
| ·Increasing the Input of Lexical Chunks | 第45-46页 |
| ·Increasing the Output of Lexical Chunks | 第46-49页 |
| 6. Conclusion | 第49-51页 |
| ·Summary of the Research | 第49页 |
| ·Limitations and Suggestions for the Further Research | 第49-51页 |
| Acknowledgements | 第51-53页 |
| Bibliography | 第53-57页 |
| Appendix A | 第57-59页 |
| Appendix B | 第59-61页 |
| Appendix C | 第61页 |
