| 摘要 | 第1-6页 |
| ABSTRACT | 第6-7页 |
| List of Tables | 第7-8页 |
| List of Figures | 第8-11页 |
| Chapter One Introduction | 第11-13页 |
| ·Significance of the Present Study | 第11页 |
| ·Purpose of the Research | 第11-12页 |
| ·Layout of the Thesis | 第12-13页 |
| Chapter Two Literature Review | 第13-30页 |
| ·Definition of Lexical Phrases | 第13-16页 |
| ·Classification of Lexical Phrases | 第16-22页 |
| ·Functions of Lexical Phrases in Second Language Acquisition | 第22-24页 |
| ·Enhancing Students' Confidence | 第22-23页 |
| ·Improving Students' Pragmatic Competence | 第23-24页 |
| ·Objective and Teaching Requirements of College English | 第24页 |
| ·Previous Studies on Lexical Phrases | 第24-30页 |
| ·Researches Abroad | 第24-28页 |
| ·Researches in China | 第28-30页 |
| Chapter Three Research Methodology | 第30-39页 |
| ·Research Questions | 第30-31页 |
| ·Participant | 第31页 |
| ·Instruments | 第31-33页 |
| ·Written Assignments | 第31-32页 |
| ·Interviews | 第32-33页 |
| ·Data Collection Procedure and Analysis | 第33-39页 |
| ·Building a Corpus of the Participant's Compositions | 第34页 |
| ·Identifying the Lexical Phrases in the Participant's Writings | 第34-36页 |
| ·Determining the Appropriateness of the Lexical Phrases | 第36-38页 |
| ·Interviews with the Participant | 第38-39页 |
| Chapter Four Results and Discussion | 第39-59页 |
| ·Developing Use of Lexical Phrases | 第39-42页 |
| ·Improvement in the Appropriate Use of Lexical Phrases | 第42-48页 |
| ·Confidence of the Participant in Using Lexical Phrases | 第48-51页 |
| ·Acquisition Sources of New Lexical Phrases | 第51-56页 |
| ·Overall Analysis and Discussion of the Acquisition Sources | 第51-55页 |
| ·Explicit and Implicit Sources of Acquisition | 第55-56页 |
| ·General Discussion | 第56-59页 |
| Chapter Five Conclusion | 第59-62页 |
| ·Major Findings | 第59-60页 |
| ·Pedagogical Implications | 第60-61页 |
| ·Limitations | 第61-62页 |
| References | 第62-67页 |
| Appendixes | 第67-70页 |
| Appendix Ⅰ. Excerpts from interview transcriptions | 第67-69页 |
| Appendix Ⅱ. Samples of appropriate and inappropriate lexical phrases judged by the raters | 第69-70页 |
| Acknowledgements | 第70-71页 |
| Resume | 第71页 |
