| 摘要 | 第1-6页 |
| ABSTRACT | 第6-12页 |
| Chapter One Introduction | 第12-15页 |
| ·Background of the study | 第12-13页 |
| ·Significance of the study | 第13-14页 |
| ·Organization of the dissertation | 第14-15页 |
| Chapter Two Literature Review | 第15-31页 |
| ·The research of lexical chunks | 第15-24页 |
| ·The definition and terminology of lexical chunks | 第15-17页 |
| ·Classification of lexical chunks | 第17-22页 |
| ·The Functions of the lexical chunks | 第22-24页 |
| ·The cognitive view of the language | 第24-27页 |
| ·The chunk of language retrieved in the spoken discourse and stored in the memory | 第24-25页 |
| ·The process of the language in the production, learning and interpretation | 第25-27页 |
| ·Language learning and teaching and lexical chunks | 第27-31页 |
| ·The ways of teaching lexical chunks | 第27-28页 |
| ·The significance of lexical chunks in teaching writing | 第28-31页 |
| Chapter Three Research Design | 第31-34页 |
| ·Objectives | 第31页 |
| ·Research questions | 第31页 |
| ·Methodology | 第31-32页 |
| ·Subjects | 第31-32页 |
| ·Data collection instruments | 第32页 |
| ·Procedures | 第32-34页 |
| Chapter Four Results and Discussions | 第34-51页 |
| ·Analysis of the writing task | 第34-46页 |
| ·Correlation between the number of lexical chunks and the essay marks | 第34-36页 |
| ·Comparison of lexical chunks applied by two different teams | 第36-42页 |
| ·Statistics of incorrect lexical chunks in the essays | 第42-44页 |
| ·Correlation between the number of incorrect lexical chunks and the total number of lexical chunks in the essays | 第44-45页 |
| ·Selected examples of misapplied lexical chunks of each type | 第45-46页 |
| ·Analysis of the questionnaire | 第46-47页 |
| ·Discussion | 第47-51页 |
| ·Relevance between the number of lexical chunks and the level of the essays | 第47-48页 |
| ·Comparison of the employment of lexical chunks between high-mark group and low-mark group | 第48-49页 |
| ·Relevance between the number of misapplied lexical chunks and the total number of lexical chunks | 第49页 |
| ·Characteristics of the misapplication of lexical chunks | 第49-51页 |
| Chaper Five Findings and Implications | 第51-56页 |
| ·Findings of the study | 第51-52页 |
| ·Pedagogical implications | 第52-56页 |
| ·Advantages of employing lexical chunks in the writing | 第52-53页 |
| ·Advices on learning and teaching lexical chunks | 第53-56页 |
| Conclusion | 第56-59页 |
| References | 第59-62页 |
| Appendices | 第62-65页 |
| Acknowledgements | 第65-66页 |
| 攻读学位期间发表的学术论文目录 | 第66-67页 |
