| Abstract | 第3-4页 |
| 摘要 | 第5-9页 |
| Chapter One Introduction | 第9-12页 |
| 1.1 Background of the Study | 第9-10页 |
| 1.2 Purpose and Significance of the Study | 第10-11页 |
| 1.3 Organization of the Thesis | 第11-12页 |
| Chapter Two Literature Review | 第12-28页 |
| 2.1 Tolerance of Ambiguity in Vocabulary Learning | 第12-23页 |
| 2.1.1 Definition of Tolerance of Ambiguity (TOA) | 第12-13页 |
| 2.1.2 Measurement of Tolerance of Ambiguity | 第13-14页 |
| 2.1.3 Previous Researches on TOA abroad | 第14-16页 |
| 2.1.4 Previous Researches on TOA at home | 第16-21页 |
| 2.1.5 Ambiguity in Vocabulary Learning | 第21-23页 |
| 2.2 Vocabulary Learning Strategy (VLS) | 第23-24页 |
| 2.2.1 Definition of Vocabulary Learning Strategy | 第23页 |
| 2.2.2 The Classification of Vocabulary Learning Strategy | 第23-24页 |
| 2.3 Researches on Tolerance of Ambiguity and Vocabulary Learning Strategy.. | 第24-25页 |
| 2.4 Vocabulary Size | 第25-27页 |
| 2.5 Summary | 第27-28页 |
| Chapter Three Methodology | 第28-32页 |
| 3.1 Research Questions | 第28页 |
| 3.2 Research Subjects | 第28页 |
| 3.3 Research Instruments | 第28-31页 |
| 3.3.1 Questionnaires | 第28-29页 |
| 3.3.2 Vocabulary Level Test | 第29-30页 |
| 3.3.3 Semi-structured Interview | 第30-31页 |
| 3.4 Data Collection and Analysis | 第31-32页 |
| Chapter Four Results and Discussion | 第32-52页 |
| 4.1 Reliability and Validity of the Questionnaire | 第32-33页 |
| 4.2 General Description of TOA in Vocabulary Learning and Vocabulary Learning Strategy | 第33-41页 |
| 4.2.1 Differences in VLS among different Levels of TOA in Vocabulary Learning | 第37-40页 |
| 4.2.2 Differences in Vocabulary Size among different Levels of TOA in Vocabulary Learning | 第40-41页 |
| 4.3 Relationship between Middle School Students’ TOA in Vocabulary Learning and Vocabulary Learning Strategy | 第41-44页 |
| 4.4 Relationship between Middle School Students’ TOA in Vocabulary Learning and Vocabulary Size | 第44-46页 |
| 4.5 Correlation among middle school students’ TOA in Vocabulary Learning,Vocabulary Learning Strategy and Vocabulary Size | 第46-52页 |
| Chapter Five Conclusions | 第52-55页 |
| 5.1 Major Findings | 第52-53页 |
| 5.2 Pedagogical Implications | 第53-54页 |
| 5.3 Limitations and Suggestions for the Study | 第54-55页 |
| Bibliography | 第55-60页 |
| Appendix Ⅰ: 第二语言学习中的词汇歧义容忍度问卷 | 第60-61页 |
| Appendix Ⅱ:初中英语词汇学习策略调查问卷 | 第61-65页 |
| Appendix Ⅲ:Vocabulary Level Test | 第65-68页 |
| Appendix Ⅳ: Questions of Semi Interview | 第68-69页 |
| Acknowledgements | 第69页 |
