| 摘要 | 第1-6页 |
| Abstract | 第6-8页 |
| Table of Contents | 第8-10页 |
| Chapter 1 Introduction | 第10-14页 |
| ·Background of the Research | 第11页 |
| ·Signficance of the Research | 第11-12页 |
| ·Objectives of the Research | 第12-13页 |
| ·Organization of the Thesis | 第13-14页 |
| Chapter 2 Literature Review | 第14-32页 |
| ·Researches on Lexical Chunks | 第14-24页 |
| ·Definition of Lexical Chunks | 第14-16页 |
| ·Identification of Lexical Chunks | 第16-19页 |
| ·Categorization of Lexical Chunks | 第19-24页 |
| ·Functions of Lexical Chunks | 第24-28页 |
| ·Easing the Burden of Language Output Processing | 第25-27页 |
| ·Lexical Chunks Promoting Language Production Fluency | 第27-28页 |
| ·Previous Researches on Lexical Chunks | 第28-32页 |
| ·Researches Conducted Abroad | 第28-30页 |
| ·Researches Conducted in China | 第30-32页 |
| Chapter 3 Research Design | 第32-36页 |
| ·Research Questions | 第32页 |
| ·Research Subjects | 第32-33页 |
| ·Procedures | 第33-34页 |
| ·Data collection | 第34-36页 |
| Chapter 4 Results and Discussions | 第36-54页 |
| ·Statistical Analysis the Distributions of Lexical Chunks in CET-4 and CET-6 Compositions | 第36-43页 |
| ·The Comparison of Lexical Chunks Employed by Two Different Groups | 第43-50页 |
| ·The Comparison of Lexical Chunks Employed by Two Different Groups in CET-4 Compositions | 第43-47页 |
| ·The Comparison of Lexical Chunks Employed by Two Different Groups in CET-6 Compositions | 第47-50页 |
| ·The Results of Correlation Analysis | 第50-52页 |
| ·Summary of the Results | 第52-54页 |
| Chapter 5 Conclusion | 第54-58页 |
| ·Conclusion of the Study | 第54-55页 |
| ·Limitations of the Research and Suggestions for Further Researches | 第55-56页 |
| ·Limitations of the Research | 第55-56页 |
| ·Suggestions for Further Researches | 第56页 |
| ·Implications for English Teaching | 第56-58页 |
| References | 第58-61页 |
| Appendixes | 第61-66页 |
| Appendix Ⅰ The topics of compositions of CET-4 for the research | 第61-62页 |
| Appendix Ⅱ The topics of compositions of CET-6 for the research | 第62-63页 |
| Appendix Ⅲ 作文评分标准 | 第63-64页 |
| Appendix Ⅳ:The Writing Scores and the Number of Lexical Chunks Used by students taking CET-4 | 第64-65页 |
| Appendix Ⅴ:The Writing Scores and the Number of Lexical Chunks Used by students taking CET-6 | 第65-66页 |
| 个人简介 | 第66-67页 |
| 导师简介 | 第67-68页 |
| Acknowledgements | 第68-69页 |
