| Abstract | 第1-7页 |
| 摘要 | 第7-10页 |
| List of Tables | 第10-11页 |
| List of Figures | 第11-12页 |
| Chapter 1 Introduction | 第12-15页 |
| ·Needs for the Study | 第12-13页 |
| ·General description of the study | 第13-14页 |
| ·Layout of the Thesis | 第14-15页 |
| Chapter 2 Literature Review | 第15-34页 |
| ·Brief History of Vocabulary Instruction in Language Teaching | 第15-18页 |
| ·Theoretical Foundations of Lexical Approach | 第18-26页 |
| ·Definition of Lexical Chunk | 第18-20页 |
| ·Taxonomy of Lexical Chunks | 第20-23页 |
| ·Psycholinguistic and Cognitive Foundations of Lexical Chunks | 第23-25页 |
| ·Corpus linguistic Analysis of Lexical Chunks | 第25-26页 |
| ·Lexical Approach and Foreign Language Teaching | 第26-31页 |
| ·Principles of Lexical Approach | 第26-28页 |
| ·A Lexical Approach to Writing Teaching | 第28-29页 |
| ·Weakness of Lexical Approach to Language Teaching | 第29-31页 |
| ·Review of Previous Empirical Studies | 第31-34页 |
| ·Empirical Studies Out of China | 第31-32页 |
| ·Empirical Studies in China | 第32-34页 |
| Chapter 3 Research Design | 第34-39页 |
| ·Research Question | 第34-35页 |
| ·Participants | 第35页 |
| ·Teaching Instructions | 第35-38页 |
| ·Teaching Instructions in the Control Group | 第35-36页 |
| ·Teaching Instructions in the Experimental Group | 第36-38页 |
| ·Instruments and Statistical Procedures | 第38-39页 |
| Chapter 4 Data Analysis and Discussion | 第39-50页 |
| ·Analysis of Lexical Approach and Writing Scores | 第39-44页 |
| ·Analysis of Between-group Differences of Writing Scores | 第39-41页 |
| ·Analysis of Within-group Differences of Writing Scores | 第41-44页 |
| ·Analysis of Lexical Chunks in Two Groups' writing | 第44-48页 |
| ·Correlation between Lexical Chunks and Writing Scores | 第48-49页 |
| ·Summary | 第49-50页 |
| Chapter 5 Conclusion | 第50-62页 |
| ·Major Findings of the Present Study | 第50-51页 |
| ·Pedagogical Implications of Lexical Approach | 第51-60页 |
| ·Lexis in Language Teaching | 第51-53页 |
| ·Grammar in the Lexical Approach | 第53-55页 |
| ·Responding to Learners' Errors in Lexical Approach | 第55-57页 |
| ·Teaching Materials in the Lexical Approach | 第57-59页 |
| ·Difficulties in Implementing the Lexical Approach | 第59-60页 |
| ·Limitations of the Study and Suggestions for Future Research | 第60-62页 |
| References | 第62-66页 |
| Appendix | 第66-70页 |
| Two composition topics from TEM 4 used in this study | 第66-67页 |
| Writing scores of EG and CG in two tests | 第67-68页 |
| Lexical chunks employed in participants' writings in EG | 第68-69页 |
| Lexical chunks employed in participants' writings in CG | 第69-70页 |
| Acknowledgements | 第70-71页 |
| 个人简历 | 第71页 |
| 发表的学术论文 | 第71页 |
