| Acknowledgements | 第1-5页 |
| Abstract (Chinese) | 第5-6页 |
| Abstract (English) | 第6-10页 |
| Chapter One Introduction | 第10-13页 |
| ·Background of the Study | 第10-12页 |
| ·Purpose and Significance of the Current Research | 第12页 |
| ·Organization of the Study | 第12-13页 |
| Chapter Two Literature Review | 第13-34页 |
| ·Tolerance of Ambiguity | 第13-29页 |
| ·Ambiguity and Ambiguous Situations | 第13-15页 |
| ·Cause of Ambiguity | 第15-17页 |
| ·Definitions of Tolerance of Ambiguity | 第17-21页 |
| ·Definitions of ToA in the Field of Psychology | 第17-19页 |
| ·Definitions of TOA in the Field of SLA | 第19-21页 |
| ·Measurement of Tolerance of Ambiguity | 第21-23页 |
| ·Related Research on Tolerance of Ambiguity | 第23-29页 |
| ·Related Research of TOA in the Field of Psychology | 第23-25页 |
| ·Related Research of TOA in the Field of SLA | 第25-29页 |
| ·Review of Research on Language Learning Strategy | 第29-34页 |
| ·The Relationship between Language Learning Strategy Use and Learning Proficiency | 第29-31页 |
| ·Factors Affecting Strategy Use | 第31-34页 |
| Chapter Three Methodology | 第34-39页 |
| ·Research Questions | 第34页 |
| ·Subjects | 第34-35页 |
| ·Instruments | 第35-37页 |
| ·Instrument of Tolerance of Ambiguity | 第35-36页 |
| ·Instrument of English Learning Strategy | 第36-37页 |
| ·Data Collection | 第37页 |
| ·Analysis Procedures | 第37-39页 |
| Chapter Four Results and Discussions | 第39-55页 |
| ·Tolerance of Ambiguity Scores of All Subjects | 第39-42页 |
| ·Tolerance of Ambiguity and English Learning Strategy Use | 第42-49页 |
| ·Correlation between Tolerance of Ambiguity and English Learning Achievement | 第49-55页 |
| Chapter Five Implications and Suggestions | 第55-62页 |
| ·Major Findings of the Study | 第55-56页 |
| ·Implications of the Study | 第56-61页 |
| ·Limitations and Suggestions for Further Study | 第61-62页 |
| Bibliography | 第62-68页 |
| Appendix Ⅰ Second Language Tolerance of Ambiguity Scale (SLTAS) | 第68-69页 |
| Appendix Ⅱ English Strategy Inventory for Language Learning | 第69-71页 |
