| Acknowledgements | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第7-12页 |
| Chapter 1 Introduction | 第12-16页 |
| 1.1 Background | 第12-14页 |
| 1.2 Significance | 第14页 |
| 1.3 Layout of the Thesis | 第14-16页 |
| Chapter 2 Literature Review | 第16-27页 |
| 2.1 Ambiguity Tolerance and its Development | 第16-20页 |
| 2.1.1 Definition of Ambiguity | 第16-17页 |
| 2.1.2 Definition and Development of Ambiguity Tolerance | 第17-19页 |
| 2.1.3 Measurement of AT | 第19-20页 |
| 2.2 Related studies on AT both at home and abroad | 第20-27页 |
| 2.2.1 Related studies on AT in psychological field | 第20-21页 |
| 2.2.2 Related Studies in SLA field | 第21-23页 |
| 2.2.3 Related Studies on AT in SLA at home | 第23-26页 |
| 2.2.4 Limitations of previous studies | 第26-27页 |
| Chapter 3 Research Methodology | 第27-35页 |
| 3.1 Research questions | 第27-28页 |
| 3.2 Research subjects | 第28-29页 |
| 3.3 Instruments | 第29-31页 |
| 3.3.1 Second Language Tolerance of Ambiguity Scale (SLTAS) | 第29-30页 |
| 3.3.2 Model and genuine tests of TEM-8 | 第30-31页 |
| 3.3.3 The semi-structured interview | 第31页 |
| 3.4 Procedure | 第31-35页 |
| Chapter 4 Data Analysis and Discussion | 第35-66页 |
| 4.1 Data analysis of overall conditions of AT | 第35-39页 |
| 4.1.1 Descriptive analysis of total scores | 第35-36页 |
| 4.1.2 The commonly used classification method | 第36-38页 |
| 4.1.3 K-means cluster analysis | 第38页 |
| 4.1.4 Analysis of variance (ANOVA) | 第38-39页 |
| 4.2 Data analysis of AT in different skills | 第39-52页 |
| 4.2.1 AT in reading | 第39-42页 |
| 4.2.2 AT in Listening | 第42-44页 |
| 4.2.3 AT in writing | 第44-45页 |
| 4.2.4 AT in speaking | 第45-47页 |
| 4.2.5 AT in vocabulary | 第47-49页 |
| 4.2.6 AT in grammar | 第49-51页 |
| 4.2.7 A comprehensive comparison of subjects' performance in AT in different skills | 第51-52页 |
| 4.3 Data analysis of gender difference | 第52-53页 |
| 4.4 Data analysis of correlation between AT and different skills | 第53-61页 |
| 4.4.1 Correlation between AT and reading | 第54-55页 |
| 4.4.2 Correlation between AT and listening | 第55-56页 |
| 4.4.3 Correlation between AT and writing | 第56-58页 |
| 4.4.4 Correlation between AT and translation | 第58-59页 |
| 4.4.5 Correlation between AT and cultural knowledge | 第59-60页 |
| 4.4.6 Correlation between AT and general performance | 第60-61页 |
| 4.5 Conclusion of the interview results | 第61-63页 |
| 4.6 Discussion | 第63-66页 |
| Chapter 5 Conclusion | 第66-70页 |
| 5.1 Summary | 第66-67页 |
| 5.2 Pedagogical implications | 第67-68页 |
| 5.3 Limitations and suggestions for further research | 第68-70页 |
| References | 第70-75页 |
| Appendix Ⅰ The Modified Version of SLTAS | 第75-77页 |
| Appendix Ⅱ Interview questions on ambiguity tolerance | 第77页 |
