| Acknowledgements | 第4-5页 |
| Abstract (English version) | 第5页 |
| Abstract (Chinese version) | 第6-9页 |
| Chapter 1 Introduction | 第9-12页 |
| Chapter 2 Characteristics and General Pragmatic Principles of In-Class Language | 第12-19页 |
| 2.1. Definition and Difference of In-Class Language | 第12-13页 |
| 2.1.1. Definition | 第12页 |
| 2.1.2. Difference | 第12-13页 |
| 2.2. Characteristics of In-Class Language | 第13-16页 |
| 2.2.1. The Particular Quality of Communication | 第13页 |
| 2.2.2. Oral Prepared Language of Formality and Informality | 第13-14页 |
| 2.2.3. The Combination of Written and Oral Language Style | 第14-15页 |
| 2.2.4. The Quality of Science | 第15页 |
| 2.2.5. Chaudron's Views | 第15-16页 |
| 2.3. General Pragmatic Principles of In-Class Language | 第16-19页 |
| 2.3.1. Expression Principle of In-Class Language | 第17-18页 |
| 2.3.2. Comprehension Principle of In-Class Language | 第18-19页 |
| Chapter 3 Speech Act Theory by Austin-Searle | 第19-28页 |
| 3.1. Austin's Contribution to the Theory | 第19-22页 |
| 3.1.1. Performative Verbs | 第19-21页 |
| 3.1.2. Locutionary, Illocutionary, Perlocutionary Acts | 第21-22页 |
| 3.2. Searle's Contribution to the Theory | 第22-28页 |
| 3.2.1. Searle's Classification of Performative Acts | 第22-25页 |
| 3.2.2. Indirect Speech | 第25-28页 |
| Chapter 4 Forms and Functions of In-Class Language under Speech Act Theory | 第28-36页 |
| 4.1. Directing and the Function | 第28-30页 |
| 4.2. Greetings and the Function | 第30-32页 |
| 4.3. Questioning and the Function | 第32-33页 |
| 4.4. Stating and the Function | 第33-34页 |
| 4.5. Commenting and the Function | 第34-36页 |
| Chapter 5 Investigation and Analysis of Speech Acts of In-Class Language | 第36-42页 |
| 5.1. Speech Act Analysis of In-Class Language at Level 1 | 第36-37页 |
| 5.2. Speech Act Analysis of In-Class Language at Level 2 | 第37-38页 |
| 5.3. Analysis of the Illocutionary Act of Teachers and Students | 第38-40页 |
| 5.4. Analysis of the Perlocutionary Act of In-Class Language | 第40-42页 |
| Chapter 6 Conclusion | 第42-44页 |
| Bibliography | 第44-45页 |
