| 中文摘要 | 第4-5页 |
| ABSTRACT | 第5页 |
| CHAPTER ONE INTRODUCTION | 第8-12页 |
| 1.1 RESEARCH BACKGROUND | 第8-10页 |
| 1.1.1 Past studies on Le and their defects | 第8页 |
| 1.1.2 Cognitive Linguistics | 第8-10页 |
| 1.2 AIM AND HYPOTHESES OF THIS DISSERTATION | 第10页 |
| 1.3 GUIDE TO THIS DISSERTATION | 第10-12页 |
| CHAPTER TWO A BRIEF REVIEW ON THE PREVIOUS STUDIES OF LE | 第12-16页 |
| 2.1 THE SYNTACTICAL POSITIONS OF LE | 第12页 |
| 2.2 THE GRAMMATICAL MEANINGS OF LE | 第12-14页 |
| 2.2.1 Le is the tense-aspect marker | 第12-14页 |
| 2.2.2 Le is the symbol of focus | 第14页 |
| 2.3 THE AMBIGUITIES OF LE | 第14-15页 |
| 2.4 SUMMARY | 第15-16页 |
| CHAPTER THREE THE PRINCIPLE OF PROFILING | 第16-26页 |
| 3.1 PROFILING AND THREE DISTINCTIVE NOTIONS | 第16-18页 |
| 3.2 PARAMETERS RELATED TO PROFILING | 第18-21页 |
| 3.2.1 Viewing arrangement | 第18-19页 |
| 3.2.2 Windowing of attention | 第19-20页 |
| 3.2.3 Scope | 第20-21页 |
| 3.3 THE MODE OF OPERATION FOR PROFILING-FIGURE AND GROUND | 第21-25页 |
| 3.3.1 The characters of figure and ground | 第21-22页 |
| 3.3.2 The applications of figure and ground | 第22-23页 |
| 3.3.3 Reference point and its grounding functions | 第23-25页 |
| 3.4 SUMMARY | 第25-26页 |
| CHAPTER FOUR A COGNITIVE ANALYSIS ON THE GRAMMATICAL MEANINGS OF LE | 第26-40页 |
| 4.1 COMPOSITE STRUCTURE OF LE | 第26-27页 |
| 4.2 TO CONFIRM THE GRAMMATICAL MEANINGS OF LE THROUGH ITS PROFILING FUNCTION | 第27-40页 |
| 4.2.1 Le is the tense-aspect marker through its viewing arrangement | 第27-33页 |
| 4.2.2 Le is the symbol of focus through its windowing of attention | 第33-40页 |
| CHAPTER FIVE A COGNITIVE ANALYSIS ON THE AMBIGUITIES OF LE | 第40-50页 |
| 5.1 AMBIGUITIES ARE GENERATED BY THE VIEWING ARRANGEMENT AND ATTENTION | 第40-41页 |
| 5.2 STRUCTURAL AMBIGUITIES OF LE | 第41-43页 |
| 5.3 SEMANTIC AMBIGUITIES OF LE | 第43-44页 |
| 5.4 TENSE-ASPECTUAL AMBIGUITIES OF LE | 第44-46页 |
| 5.5 PRAGMATIC AMBIGUITIES OF LE | 第46-50页 |
| CHAPTER SIX CONCLUSION | 第50-52页 |
| ACKNOLEDGEMENTS | 第52-53页 |
| REFERENCES | 第53-55页 |
| APPENDIX: The list of figures and tables | 第55-56页 |
