| Abstract | 第5-6页 |
| 摘要 | 第7-11页 |
| Chapter One Introduction | 第11-16页 |
| 1.1 Research Background of the Study | 第11-13页 |
| 1.2 Purpose of the Current Study | 第13-14页 |
| 1.3 Significance of the Current Study | 第14页 |
| 1.4 Layout of the Current Research | 第14-16页 |
| Chapter Two Literature Review | 第16-35页 |
| 2.1 Tolerance of Ambiguity | 第16-22页 |
| 2.1.1 Definition of Tolerance of Ambiguity | 第16-18页 |
| 2.1.2 Tolerance of Ambiguity Measurement | 第18-20页 |
| 2.1.3 Tolerance of Ambiguity and Language Learning Strategy Use | 第20页 |
| 2.1.4 Correlation with the Four Language Learning Skills in Second Language Teaching | 第20-22页 |
| 2.1.5 Further Implications of Tolerance of Ambiguity Research | 第22页 |
| 2.2 Learned Helplessness | 第22-33页 |
| 2.2.1 Definition of Learned Helplessness | 第22-24页 |
| 2.2.2 Psychological Peculiarity of Learned Helplessness | 第24-25页 |
| 2.2.3 The causes of Learned Helplessness | 第25-28页 |
| 2.2.4 Measurement of Learned Helplessness | 第28-29页 |
| 2.2.5 Learned Helplessness in Academic Domain | 第29-33页 |
| 2.3 The Empirical Theory Basis for the Combination of Learned Helplessness andAmbiguity Tolerance | 第33-35页 |
| Chapter Three The Present Research | 第35-39页 |
| 3.1 Research Questions and Purposes | 第35页 |
| 3.2 Participants | 第35页 |
| 3.3 Instruments | 第35-37页 |
| 3.3.1 Second Language Tolerance of Ambiguity Scale | 第36页 |
| 3.3.2 Learned Helplessness Scale | 第36页 |
| 3.3.3 Students’ interview | 第36-37页 |
| 3.3.4 English proficiency test | 第37页 |
| 3.4 Procedures | 第37-39页 |
| 3.4.1 Data Collection | 第37-38页 |
| 3.4.2 Data Analysis | 第38-39页 |
| Chapter Four Results Analysis and Discussion | 第39-58页 |
| 4.1 Students’ Overall Tendency of Tolerance of Ambiguity | 第39-43页 |
| 4.2 Students’ Overall Tendency of Learned Helplessness | 第43-47页 |
| 4.3 Differences of Learned Helplessness Between the Three Levels of Ambiguity Tolerance | 第47-53页 |
| 4.4 Mediating Effects of Learned Helplessness in the Relationship between Tolerance of Ambiguity and English Achievement | 第53-58页 |
| Chapter Five Conclusion | 第58-63页 |
| 5.1 A Summary of the Findings | 第58-59页 |
| 5.2 Implications of the Present Research | 第59-61页 |
| 5.3 Limitations of the Research | 第61-63页 |
| Acknowledgements | 第63-64页 |
| Appendix I | 第64-66页 |
| Appendix II | 第66-68页 |
| Appendix III | 第68-69页 |
| Appendix V | 第69-77页 |
| Bibliography | 第77-81页 |
