| Acknowledgements | 第3-4页 |
| Abstract | 第4-5页 |
| 摘要 | 第6-12页 |
| Chapter One Introduction | 第12-15页 |
| 1.1 Research Background | 第12-13页 |
| 1.2 Purpose and significance of the study | 第13-14页 |
| 1.2.1 Purpose of the present study | 第13页 |
| 1.2.2 Significance of the present study | 第13-14页 |
| 1.3 Overall structure of the thesis | 第14-15页 |
| Chapter Two Literature Review | 第15-21页 |
| 2.1 Key terms in the study | 第15-16页 |
| 2.1.1 Definition of POA | 第15-16页 |
| 2.2 Related studies at home and abroad | 第16-18页 |
| 2.2.1 The differences in teaching concept between POA and PPP | 第16-17页 |
| 2.2.2 The differences in teaching procedure between POA and PPP | 第17-18页 |
| 2.3 Studies on POA | 第18-21页 |
| Chapter Three Theoretical bases in the study | 第21-28页 |
| 3.1 Teaching concept | 第21-23页 |
| 3.2 Teaching hypothesis | 第23-24页 |
| 3.3 Teaching process | 第24-28页 |
| Chapter Four Methodology | 第28-39页 |
| 4.1 Research questions | 第28页 |
| 4.2 Subjects | 第28页 |
| 4.3 Instruments | 第28-29页 |
| 4.3.1 Oral tests | 第28-29页 |
| 4.3.2 Interview | 第29页 |
| 4.4 Procedures of the present study | 第29-39页 |
| 4.4.1 Motivating | 第29-33页 |
| 4.4.2 Enabling | 第33-35页 |
| 4.4.3 Assessment of Students | 第35-39页 |
| Chapter Five Results and Discussion | 第39-50页 |
| 5.1 Results of the Quantitative Study | 第39-44页 |
| 5.1.1 Data Collection and Analysis | 第39页 |
| 5.1.2 Results of Pre-test on oral proficiency | 第39-40页 |
| 5.1.3 Results of Pre-test on oral production | 第40-41页 |
| 5.1.4 Results of Post-test on oral proficiency | 第41-42页 |
| 5.1.5 Results of Post-test on oral production | 第42-44页 |
| 5.2 Results of the Qualitative Research | 第44-47页 |
| 5.2.1 Results of the interview | 第44-47页 |
| 5.3 Discussion | 第47-50页 |
| 5.3.1 The teaching effects of POA compared with PPP | 第47页 |
| 5.3.2 The aspects influenced by the implementation of POA | 第47-49页 |
| 5.3.3 The overall evaluation of POA | 第49-50页 |
| Chapter Six Conclusion | 第50-53页 |
| 6.1 Major findings | 第50-51页 |
| 6.2 Pedagogical implications | 第51页 |
| 6.3 Limitations of the present study | 第51-52页 |
| 6.4 Recommendations for further study | 第52-53页 |
| References | 第53-55页 |
| Appendix | 第55-56页 |
