| 中文摘要 | 第3-5页 |
| ABSTRACT | 第5-7页 |
| Chapter I Introduction | 第13-16页 |
| 1.The research background | 第13页 |
| 2.The research purpose and significance | 第13-14页 |
| 3. The framework of the thesis | 第14-16页 |
| Chapter II Literature review | 第16-26页 |
| 1.The key terms of writing | 第16-17页 |
| 1.1 The definition of writing | 第16-17页 |
| 1.2 The importance of writing | 第17页 |
| 2.The key terms of lexical chunks | 第17-22页 |
| 2.1 The definition of lexical chunks | 第18-19页 |
| 2.2 The classifications of lexical chunks | 第19-22页 |
| 3. Relevant researches at home and abroad | 第22-26页 |
| 3.1 The relevant researches abroad | 第22-23页 |
| 3.2 The relevant researches at home | 第23-26页 |
| Chapter III Schema-based lexical chunks approach | 第26-38页 |
| 1. The key terms of schema theory | 第26-28页 |
| 1.1 The definition of schema | 第26-27页 |
| 1.2 The classifications of schema | 第27页 |
| 1.3 The relation between schema theory and writing | 第27-28页 |
| 2.The concept of schema-based lexical chunks approach | 第28-30页 |
| 3. The written discourse | 第30-38页 |
| 3.1 Discourse cohesion | 第31-35页 |
| 3.2 Discourse coherence | 第35-38页 |
| Chapter IV Methodology | 第38-51页 |
| 1. Research hypotheses | 第38页 |
| 2. Research subjects | 第38-39页 |
| 3.Research instrument | 第39-41页 |
| 3.1 Two tests | 第39-40页 |
| 3.2 Interview | 第40-41页 |
| 4.Experiment | 第41-51页 |
| 4.1 Develop students’ awareness of schema-based lexical chunks | 第41页 |
| 4.2 Experimental procedures | 第41-51页 |
| Chapter V Result and discussion | 第51-61页 |
| 1.Data analysis of pretest and post test | 第51-59页 |
| 1.1 The comparison of writing scores between CG and EG in pretest | 第51-52页 |
| 1.2 The comparison of writing scores between CG and EG in post test | 第52-53页 |
| 1.3 The comparison of writing score between EG and CG in pretestand post test | 第53-55页 |
| 1.4 The comparison of lexical chunks numbers between CG and EG inpretest and post test | 第55-56页 |
| 1.5 The correlation of writing scores and the number of lexical chunks | 第56-57页 |
| 1.6 Cohesion and coherence of CG and EG in pretest and post test | 第57-59页 |
| 2.The analysis of interview | 第59-60页 |
| 3.The summary of this chapter | 第60-61页 |
| Chapter VI Conclusion | 第61-65页 |
| 1.Major findings of the study | 第61-62页 |
| 2.The implications and suggestions of the research | 第62-64页 |
| 2.1 Pay attention to the cultivation of students' self-study ability50 | 第62-63页 |
| 2.2 Pay attention to the cultivation of students' lexical chunks output | 第63页 |
| 2.3 Pay attention to grammar analysis | 第63-64页 |
| 3.The limitations of the research | 第64-65页 |
| References | 第65-68页 |
| Appendix I Pre-test paper | 第68-69页 |
| Appendix II Post-test paper | 第69-70页 |
| Appendix III Marking Criterion of the NMET Writing Paper | 第70-72页 |
| Appendix IV Interview | 第72-73页 |
| Appendix V Writing samples | 第73-75页 |
| Acknowledgment | 第75页 |
