| Acknowledgements | 第1-6页 |
| Abstract(English) | 第6-8页 |
| Abstract(Chinese) | 第8-12页 |
| List of tables and figures | 第12-13页 |
| Acronyms | 第13页 |
| Abbreviations | 第13-14页 |
| Chapter One Introduction | 第14-19页 |
| ·Introduction | 第14-15页 |
| ·Current situations of ELT in higher vocational colleges | 第15-16页 |
| ·Research questions | 第16-17页 |
| ·Significance of the study | 第17页 |
| ·Organization of the thesis | 第17-19页 |
| Chapter Two Literature Review | 第19-33页 |
| ·Introduction | 第19页 |
| ·About questions | 第19-24页 |
| ·Definitions | 第19-20页 |
| ·Functions of questions | 第20-21页 |
| ·Categorization of questions | 第21-22页 |
| ·Questioning strategies | 第22-24页 |
| ·Relevant theories | 第24-30页 |
| ·Humanism | 第24-25页 |
| ·Constructivism | 第25-27页 |
| ·Social interaction & relevant theories about interaction | 第27-30页 |
| ·Previous researches done at home and abroad | 第30-32页 |
| ·Studies done abroad | 第30-31页 |
| ·Studies done at home | 第31-32页 |
| ·Summary | 第32-33页 |
| Chapter Three Research Methodology | 第33-36页 |
| ·Introduction | 第33页 |
| ·Purpose of the study | 第33页 |
| ·Participants | 第33-34页 |
| ·Lesson type | 第34页 |
| ·Instruments | 第34-35页 |
| ·Data collection | 第35页 |
| ·Summary | 第35-36页 |
| Chapter Four Major Findings & Discussions | 第36-61页 |
| ·Introduction | 第36页 |
| ·Results of research question one | 第36-48页 |
| ·Results of classroom observations | 第36-42页 |
| ·Results of the questionnaires | 第42-46页 |
| ·Results of the interviews | 第46-48页 |
| ·Results of research question two | 第48-52页 |
| ·The types of teachers' questioning and their influences on classroom interaction | 第48页 |
| ·Episodes of teachers' questioning strategy | 第48-50页 |
| ·Ways of questioning and the effects on classroom interaction | 第50-52页 |
| ·Findings and Discussions | 第52-56页 |
| ·Teachers' questions tend to be monotonous and lack variety | 第52-53页 |
| ·Teachers hold a good balance of distribution of questions and provide positive feedback | 第53-54页 |
| ·Teachers' questioning strategies need to be improved | 第54页 |
| ·There exists a close correlation between teachers' questioning strategy and classroom interaction | 第54-55页 |
| ·Teachers' insufficient knowledge about relevant theories and questioning affects teachers' awareness and classroom interaction | 第55-56页 |
| ·Suggestions | 第56-60页 |
| ·Teachers are expected to fulfill the multi-dimensional functions of their questions | 第56-57页 |
| ·Teachers are needed to optimize their questioning strategies | 第57-59页 |
| ·Teachers are in need of knowing some relevant knowledge about questioning | 第59页 |
| ·Teachers are expected to improve their teachings by means of peer observation and reflection | 第59页 |
| ·Teachers' awareness of questioning should be strengthened | 第59-60页 |
| ·Summary | 第60-61页 |
| Chapter Five Conclusion | 第61-64页 |
| ·Introduction | 第61页 |
| ·Summary of research findings | 第61页 |
| ·Implications | 第61-62页 |
| ·Limitations | 第62页 |
| ·Recommendations for future research | 第62-64页 |
| Bibliography | 第64-67页 |
| Appendix Ⅰ---Questionnaire(Chinese) | 第67-69页 |
| Appendix Ⅱ---Interview | 第69页 |
