| Abstract | 第1-5页 |
| 摘要 | 第5-7页 |
| List of Tables | 第7-8页 |
| Abbreviations | 第8-11页 |
| Chapter One Introduction | 第11-15页 |
| ·Background of the Study | 第11-13页 |
| ·Purpose and Significance of the Study | 第13-14页 |
| ·Organization of the Thesis | 第14-15页 |
| Chapter Two Review of Literature | 第15-30页 |
| ·Conception of Tolerance of Ambiguity and Intolerance of Ambiguity | 第15-17页 |
| ·Classification of Tolerance of Ambiguity | 第17-20页 |
| ·Research on TOA in Second Language Acquisition | 第20-24页 |
| ·Differences in Tolerance of Ambiguity between English Majors and non-English Majors | 第24-25页 |
| ·Differences in Tolerance of Ambiguity between High Proficiency Students and Low Proficiency Students | 第25-26页 |
| ·Relationship between Tolerance of Ambiguity and English Learning Proficiency | 第26-30页 |
| Chapter Three Research Methodology | 第30-35页 |
| ·Research Questions | 第30页 |
| ·Subjects | 第30-32页 |
| ·Research Instruments | 第32-33页 |
| ·The Second Language Tolerance of Ambiguity Scale | 第32页 |
| ·English Learning Proficiency Test | 第32-33页 |
| ·Data Collection | 第33-34页 |
| ·Data Analysis | 第34-35页 |
| Chapter Four Results and Discussion | 第35-50页 |
| ·Students’General Tendency in Tolerance of Ambiguity in this Study | 第35-40页 |
| ·Differences in Tolerance of Ambiguity between English-Major Students and non-English Major Students | 第40-43页 |
| ·Differences in Tolerance of Ambiguity between High Proficiency Students and Low Proficiency Students | 第43-46页 |
| ·Relationship between TOA and English Learning Proficiency | 第46-50页 |
| Chapter Five Conclusion | 第50-55页 |
| ·Summary of the Findings in this Study | 第50-51页 |
| ·Implications for English Teaching and Learning | 第51-53页 |
| ·Limitation and Recommendations for Future Research | 第53-55页 |
| References | 第55-60页 |
| Appendix | 第60-62页 |
| Acknowledgement | 第62-63页 |
| 在读期间公开发表论文（著）及科研情况 | 第63页 |
