| Acknowledgements | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第7-14页 |
| Chapter One Introduction | 第14-17页 |
| 1.1 Research Background | 第14-15页 |
| 1.2 Purposes and Significance of the Study | 第15-16页 |
| 1.3 Overall Structure of the Thesis | 第16-17页 |
| Chapter Two Literature Reviews | 第17-30页 |
| 2.1 Key Terms and Basic Concepts | 第17-21页 |
| 2.1.1 Prototype | 第17页 |
| 2.1.2 Fuzziness and Family Resemblance | 第17-18页 |
| 2.1.3 Prototypical Members and Non-prototypical Members | 第18页 |
| 2.1.4 Tense | 第18-21页 |
| 2.1.4.1 Classification of Tense | 第19-20页 |
| 2.1.4.2 Definition of Present Perfect Tense | 第20页 |
| 2.1.4.3 Comparison among Present Perfect Tense, Past Tense and Present Tense | 第20-21页 |
| 2.2 Theoretical Framework for the Present Studies | 第21-28页 |
| 2.2.1 Prototype Theory | 第21-24页 |
| 2.2.1.1 Classical Theory of Categorization----Aristotle | 第22页 |
| 2.2.1.2 Development of Cognitive Prototype Theory | 第22-24页 |
| 2.2.2 SER Theory | 第24-28页 |
| 2.2.2.1 The Interpretation of Tense and Aspect | 第24-26页 |
| 2.2.2.2 Application of SER Theory to present perfect tense Teaching | 第26-28页 |
| 2.3 Previous Studies at Home and Abroad | 第28-30页 |
| 2.3.1 Related Researches Abroad | 第28-29页 |
| 2.3.2 Related Researches at Home | 第29-30页 |
| Chapter Three Research Methodology | 第30-41页 |
| 3.1 Research Questions | 第30页 |
| 3.2 Research Designs | 第30-39页 |
| 3.2.1 Qualitative Research Design | 第31-32页 |
| 3.2.1.1 Subjects | 第31页 |
| 3.2.1.2 Instruments | 第31页 |
| 3.2.1.3 Research Procedures | 第31-32页 |
| 3.2.2 Quantitative Research Design | 第32-39页 |
| 3.2.2.1 Subjects | 第32页 |
| 3.2.2.2 Instruments | 第32-33页 |
| 3.2.2.3 Teaching Procedures | 第33-39页 |
| 3.3 Data Collection | 第39页 |
| 3.4 Data Analysis | 第39-41页 |
| Chapter Four Results and Discussions | 第41-50页 |
| 4.1 Results and Discussions of the Learning Effect on Present Perfect Tense | 第41-44页 |
| 4.1.1 The Effect on the Prototypical Uses of Present Perfect Tense | 第42-43页 |
| 4.1.2 The Effect on the Non-prototypical Uses of Present Perfect Tense | 第43-44页 |
| 4.2 Results and Discussions of Learning Effect of Present Perfect Tense for Different Levelsof Senior High School Students | 第44-50页 |
| 4.2.1 The Effect on Low-level Students' Learning | 第45-46页 |
| 4.2.2 The Effect on Medium-level Students' Learning | 第46-47页 |
| 4.2.3 The Effect on High-level Students' Learning | 第47-50页 |
| Chapter Five Conclusion | 第50-53页 |
| 5.1 Major Findings | 第50-51页 |
| 5.2 Pedagogical Implications | 第51-52页 |
| 5.3 Limitations of the Present Study | 第52页 |
| 5.4 Suggestions for the Future Study | 第52-53页 |
| References | 第53-56页 |
| Appendix Ⅰ | 第56-57页 |
| Appendix Ⅱ | 第57-61页 |
| Appendix Ⅲ | 第61-64页 |
| Appendix Ⅳ | 第64-69页 |
