| 摘要 | 第4-6页 |
| Abstract | 第6-7页 |
| Introduction | 第10-12页 |
| Chapter One Literature Review | 第12-23页 |
| 1.1 The Definition of Lexical Chunks | 第12-13页 |
| 1.2 Classification of Lexical Chunks | 第13-16页 |
| 1.2.1 Formal Aspects of Lexical Chunks | 第13-14页 |
| 1.2.2 Functional Aspects of Lexical Phrases | 第14-15页 |
| 1.2.3 Organizing Functions of Lexical Chunks | 第15-16页 |
| 1.3 Lexical Chunks in Written Discourse | 第16-19页 |
| 1.4 Related Studies on Lexical Chunks | 第19-23页 |
| 1.4.1 Studies abroad | 第19-21页 |
| 1.4.2 Studies at Home | 第21-23页 |
| Chapter Two Methodology | 第23-27页 |
| 2.1 Objectives | 第23页 |
| 2.2 Instruments | 第23-24页 |
| 2.3 Data Collection | 第24-26页 |
| 2.4 Data Analysis | 第26-27页 |
| Chapter Tree Results and Discussions | 第27-45页 |
| 3.1 General Description of the Data | 第27-29页 |
| 3.2 Comparison of Lexical Chunks between the H-level Group and the Low-level Group | 第29-41页 |
| 3.2.1 CComparison of Topic Markers between the H-level Group and L-level Group | 第29-32页 |
| 3.2.2 Comparison of Summarizers between the H-level Group and L-level Group | 第32-33页 |
| 3.2.3 Comparison of Exemplifiers between the H-level Group and L-level Group | 第33-35页 |
| 3.2.4 Comparison of Relators between the H-level Group and L-level Group | 第35-37页 |
| 3.2.5 Comparison of Evaluators between the H-level Group and L-level Group | 第37-39页 |
| 3.2.6 Comparison of Qualifiers between the H-level Group and L-level Group | 第39-41页 |
| 3.3 The Correlation between the Use of Lexical Chunks and Writing Scores | 第41-45页 |
| Chapter Four Pedagogical Implications | 第45-49页 |
| 4.1 Raising Students’ Awareness of Using Lexical Chnks | 第45-46页 |
| 4.2 Changing Teaching Method | 第46-47页 |
| 4.3 Emphasizing the Functions of Macro-organizers | 第47-49页 |
| Conclusion | 第49-52页 |
| Bibliography | 第52-55页 |
| Appendix | 第55-56页 |
| 攻读硕士期间发表的论文 | 第56-57页 |
| Acknowledgements | 第57页 |
