| ABSTRACT | 第1-6页 |
| 摘要 | 第6-12页 |
| Chapter 1 Introduction | 第12-19页 |
| ·Purpose of the Study | 第12-13页 |
| ·Needs of the Study | 第13-18页 |
| ·The Significance of Lexical Chunks in English Use | 第14-16页 |
| ·The Limitations of Previous Studies in China | 第16-17页 |
| ·The Promising Direction Offered by Chunk Teaching | 第17-18页 |
| ·Organization of the Thesis | 第18-19页 |
| Chapter 2 Literature Review | 第19-37页 |
| ·Introduction | 第19页 |
| ·A General Understanding of Lexical Chunks | 第19-21页 |
| ·Theoretical Basis for Lexical Chunk | 第21-26页 |
| ·The Formulaic Aspect of Language | 第21-22页 |
| ·The Psycholinguistic Explanations for Lexical Chunks | 第22-23页 |
| ·Theories of Language Processing | 第23-25页 |
| ·Open-Choice Principle and Idiom Principle | 第24页 |
| ·Rule-Based System and Example-Based System | 第24-25页 |
| ·Theories of Learning Concerning Lexical Chunks | 第25-26页 |
| ·Analytic and Gestalt Types of Learning | 第25-26页 |
| ·System-Learning and Item-Learning | 第26页 |
| ·The Central Role of Chunks in Language Learning and Teaching | 第26-33页 |
| ·Introduction | 第27页 |
| ·Basic Units in Language Production and Comprehension | 第27-29页 |
| ·Ideal Units in Language Teaching and Learning | 第29-33页 |
| ·Promoting Native-Like Linguistic Performance | 第29-30页 |
| ·Balancing Linguistic and Pragmatic Competence | 第30-31页 |
| ·Helping Intemalizing Syntactic Rules | 第31-32页 |
| ·Realizing Discourse Functions | 第32-33页 |
| ·Attempts to Integrating Lexical Chunks into Teaching | 第33-35页 |
| ·Lexical Syllabus | 第33-34页 |
| ·Lexical Phrases | 第34页 |
| ·Lexical Approach | 第34-35页 |
| ·Summary | 第35-37页 |
| Chapter 3 Methodology | 第37-47页 |
| ·Introduction | 第37页 |
| ·Subjects | 第37-38页 |
| ·Instruments | 第38-42页 |
| ·Corpus | 第38-39页 |
| ·The Spoken English Test | 第39-40页 |
| ·Criteria for Identification and Categorization of Lexical Chunks | 第40-42页 |
| ·Identification of Lexical Chunks | 第40-41页 |
| ·Categorization of Lexical Chunks | 第41-42页 |
| ·Data Collection | 第42-45页 |
| ·Data Analysis | 第45-47页 |
| Chapter 4 Results and Discussion | 第47-62页 |
| ·Introduction | 第47页 |
| ·Statistical Analysis and Results | 第47-58页 |
| ·The Difference of Chunk Use between Two Groups | 第47-53页 |
| ·T-Test between Two Groups in Task Ⅱ | 第47-50页 |
| ·T-Test between Two Groups in Task Ⅲ | 第50-52页 |
| ·Discussion of the Results | 第52-53页 |
| ·The Difference of Chunk Use between Two Task Types | 第53-55页 |
| ·The Comparison between Two Types of Lexical Chunks | 第55-58页 |
| ·Characteristics and Deficiencies of Chunk Use | 第58-61页 |
| ·A Lack of Chunk Competence | 第58-59页 |
| ·Overuse or Repetition of Some Chunks | 第59-60页 |
| ·Simplicity of Chunk Use | 第60-61页 |
| ·Summary | 第61-62页 |
| Chapter 5 Conclusion and Implications | 第62-68页 |
| ·Conclusion of the Study | 第62页 |
| ·Pedagogical Implications of this Study | 第62-65页 |
| ·Attaching More Attention to Chunk Teaching | 第62-63页 |
| ·Raising Learners' Awareness of Chunks | 第63-64页 |
| ·Teaching Chunks with Authentic Material | 第64-65页 |
| ·Suggested Activities to Integrating Lexical Chunks into Teaching | 第65-67页 |
| ·Discovering the Use of Lexical Chunks through Comparison | 第65-66页 |
| ·Teaching Lexical Chunks through Context | 第66页 |
| ·Using Corpora and Concordances in Chunk Teaching | 第66-67页 |
| ·Recommendations for Further Study | 第67-68页 |
| Acknowledgements | 第68-69页 |
| References | 第69-72页 |
| Appendix A | 第72-73页 |
| Appendix B | 第73-75页 |
| 攻读学位期间的研究成果 | 第75页 |
