| 摘要 | 第1-5页 |
| Abstract | 第5-8页 |
| Chapter 1 Introduction | 第8-12页 |
| ·Need for the Study | 第8-10页 |
| ·Objectives of Study | 第10页 |
| ·Research Questions and Hypotheses | 第10-11页 |
| ·Structure of Thesis | 第11-12页 |
| Chapter Two Literature Review of Category Theories | 第12-30页 |
| ·Category and Categorization | 第12-13页 |
| ·Development of Category Theories | 第13-17页 |
| ·Theory of Levels of Categorization | 第17-22页 |
| ·Value of Theory of Levels of Categorization in Vocabulary Teaching and Learning | 第22-30页 |
| Chapter Three Research Methodology | 第30-37页 |
| ·Objective | 第30-31页 |
| ·Instrument | 第31-33页 |
| ·A Questionnaire about Vocabulary Learning | 第31-32页 |
| ·The Teaching Vocabulary Used in Experiments | 第32-33页 |
| ·Procedures of Two Retention Experiments | 第33-35页 |
| ·Subjects | 第33页 |
| ·Pretest | 第33页 |
| ·Experiment Ⅰ | 第33-34页 |
| ·Experiment Ⅱ | 第34页 |
| ·Posttest | 第34-35页 |
| ·Interview | 第35页 |
| ·Data Collection | 第35-37页 |
| Chapter Four Data Analysis and Discussions | 第37-46页 |
| ·Analysis about the Questionnaire | 第37-40页 |
| ·Attitudes of Vocabulary Acquisition | 第37-38页 |
| ·Problems of Vocabulary Learning | 第38-39页 |
| ·Causes of These Problems | 第39-40页 |
| ·Contrastive Analysis of the Experiments | 第40-43页 |
| ·Implications for Vocabulary Teaching | 第43-46页 |
| ·Attaching Importance to the Teaching of Basic-level Vocabulary | 第43-44页 |
| ·Memorizing Words According to Semantic Network of Basic-level Terms | 第44页 |
| ·Semantic Aggregation and Segmentation Strategy | 第44-46页 |
| Chapter Five Conclusion | 第46-49页 |
| ·General Findings | 第46-47页 |
| ·Significance of Study | 第47-48页 |
| ·Limitation of Study and Suggestions of Future Research | 第48-49页 |
| References | 第49-51页 |
| Appendix One | 第51-52页 |
| Appendix Two | 第52-53页 |
| Appendix Three | 第53-56页 |
| Acknowledgment | 第56页 |
