| Acknowledgements | 第5-6页 |
| Abstract | 第6页 |
| 摘要 | 第7-12页 |
| Chapter 1 Introduction | 第12-15页 |
| 1.1 Background and Need of the study | 第12-13页 |
| 1.2 Significance and Purpose of the study | 第13页 |
| 1.3 General structure of the Thesis | 第13-15页 |
| Chapter 2 Literature Review | 第15-31页 |
| 2.1 Lexical Chunks | 第15-22页 |
| 2.1.1 Definition of Lexical Chunks | 第15-18页 |
| 2.1.2 Classification of Lexical Chunks | 第18-20页 |
| 2.1.3 Indexes for Oral Production | 第20-22页 |
| 2.2 Theory of this Empirical Research | 第22-27页 |
| 2.2.1 Two Principles | 第22-23页 |
| 2.2.2 The Lexical Approach | 第23-27页 |
| 2.3 Related Studies | 第27-31页 |
| 2.3.1 Related Studies in the West | 第27-28页 |
| 2.3.2 Related Studies in China | 第28-31页 |
| Chapter 3 Methodology | 第31-40页 |
| 3.1 Research Questions | 第31页 |
| 3.2 Participants | 第31-32页 |
| 3.3 Instruments | 第32-34页 |
| 3.3.1 Measurements | 第32-33页 |
| 3.3.2 Interview | 第33-34页 |
| 3.4 Data Collection | 第34-35页 |
| 3.5 Data Processing and Analysis | 第35-40页 |
| 3.5.1 Multi-checking | 第35页 |
| 3.5.2 Data Cleaning | 第35-37页 |
| 3.5.3 Identifying Lexical Chunks | 第37-38页 |
| 3.5.4 Arranging Lexical Chunks | 第38-40页 |
| Chapter Four Results and Discussion | 第40-52页 |
| 4.1 Correlation between Chinese EFL learners’ Use of Chunks and Their OralProduction in TEM-4 | 第40-46页 |
| 4.1.1 Relationship between Chinese EFL learners’ Use of Lexical Chunks and theFluency of Their Oral Production in TEM-4 | 第41-43页 |
| 4.1.2 Relationship between Chinese EFL learners’ Use of Lexical Chunks and theAccuracy of their Oral Production in TEM-4 | 第43-44页 |
| 4.1.3 Relationship between Chinese EFL learners’ Use of Lexical Chunks and theGrammatical Complexity of Their Oral Production in TEM-4 | 第44-46页 |
| 4.2 Differences in Chinese EFL learners’ Use of Chunks of Different types in TheirOral Production in TEM-4 | 第46-49页 |
| 4.3 Differences in Chinese EFL learners’ Use of Chunks between High Achievers andLow Achievers | 第49-52页 |
| Chapter Five Conclusion | 第52-56页 |
| 5.1 Major Findings | 第52-53页 |
| 5.2 Pedagogical Implications | 第53-54页 |
| 5.3 Limitations and Suggestions for Future Study | 第54-56页 |
| References | 第56-61页 |
| Appendix I: Performance of the high and low achievers | 第61-63页 |
| Appendix II: Lists of Students’ Types of LC | 第63-64页 |
| Appendix III: Interview Schedule | 第64-65页 |
| Appendix IIII: Sample transcripts | 第65-67页 |
