| 摘要 | 第1-6页 |
| Abstract | 第6-10页 |
| Chapter 1 Introduction l | 第10-15页 |
| ·Objectives of the Study | 第10-11页 |
| ·Significance of the Study | 第11-13页 |
| ·Research Methods and Questions of the Study | 第13页 |
| ·Scope and Layout of the Study | 第13-15页 |
| Chapter 2 Theoretical Background for the Present Study | 第15-31页 |
| ·The Speech Act Theory | 第15-24页 |
| ·Speech Act of Requests | 第15-16页 |
| ·Request Realization | 第16-17页 |
| ·Request Strategy: a Functional Perspective | 第17-20页 |
| ·Modifications of Requests | 第20-22页 |
| ·Speech Act and Interlanguage Pragmatics | 第22-23页 |
| ·Recent Related Studies on Request Acts | 第23-24页 |
| ·The Politeness Theory | 第24-27页 |
| ·The Politeness Principle | 第25页 |
| ·Politeness in Requests | 第25-27页 |
| ·Recent Related Studies of Politeness in Requests | 第27页 |
| ·International Communication Pragmatics | 第27-31页 |
| ·General Description of International Communication Pragmatics | 第28页 |
| ·'Triple Contextual Categorization'of International Communication | 第28-29页 |
| ·Features of Daily Communication and Academic Exchange | 第29-30页 |
| ·Gradation Principle: Strategy Employment | 第30-31页 |
| Chapter 3 Methodology | 第31-34页 |
| ·Subjects | 第31-32页 |
| ·Instruments and Data Collection | 第32-33页 |
| ·Questionnaire Design | 第33-34页 |
| Chapter 4 Data Analysis | 第34-61页 |
| ·Brief Description of 12 Request Scenarios | 第34-35页 |
| ·English Request Strategy (Head Act) | 第35-40页 |
| ·Four Categories of Request Strategy | 第35-37页 |
| ·Distribution of Direct Request Strategy | 第37-38页 |
| ·Distribution of Conventionally indirect Request Strategy | 第38页 |
| ·The Correlation between Request Strategy and Context | 第38-39页 |
| ·Comparison between Groups in Using Request Strategy | 第39-40页 |
| ·English Request Forms | 第40-44页 |
| ·Formal Means of Requests | 第41-42页 |
| ·Request Perspectives | 第42-43页 |
| ·Modals in Requests | 第43页 |
| ·Attention Getters/Alerters | 第43-44页 |
| ·External Modifications: Supportive Moves | 第44-52页 |
| ·All Categories of Supportive Moves by Group and Context | 第45页 |
| ·Contrastive Analysis of Supportive Moves Across Situations | 第45-51页 |
| ·Summary | 第51-52页 |
| ·Internal Modification: Downgraders/Mitigators | 第52-61页 |
| ·All Categories of Internal Modification by Group and Context | 第52-53页 |
| ·Contrastive Analysis of Downgraders Across Situations | 第53-59页 |
| ·Summary | 第59-61页 |
| Chapter 5 Conclusions and Pedagogical Implications | 第61-66页 |
| ·Major findings and Conclusions | 第61-64页 |
| ·Limitations | 第64页 |
| ·Practical and Pedagogical Implications | 第64-65页 |
| ·Suggestions for Future Research | 第65-66页 |
| References | 第66-70页 |
| Appendix I | 第70-73页 |
| Appendix II | 第73-74页 |
| Publication | 第74-75页 |
| Acknowledgements | 第75-76页 |
| Resume | 第76页 |
