| Abstract | 第4-6页 |
| 摘要 | 第7-12页 |
| Introduction | 第12-18页 |
| 0.1 Background of This Thesis | 第12-13页 |
| 0.2 Aims of This Thesis | 第13-14页 |
| 0.3 Method of This Thesis | 第14-15页 |
| 0.4 Organization of the Thesis | 第15-18页 |
| Chapter One Literature Review | 第18-26页 |
| 1.1 Researches of English Conditionals | 第18-22页 |
| 1.1.1 Researches of English Conditionals Abroad | 第18-20页 |
| 1.1.2 Researches of English Conditionals Domestic | 第20-22页 |
| 1.2 Researches of Chinese Conditionals | 第22-23页 |
| 1.3 Comparative Studies between English and Chinese Conditionals | 第23-24页 |
| 1.4 Summary | 第24-26页 |
| Chapter Two Theoretical Foundations | 第26-40页 |
| 2.1 Definition of Grammaticalization | 第26-29页 |
| 2.2 Characteristics of Grammaticalization | 第29-32页 |
| 2.2.1 Unidirection | 第29-30页 |
| 2.2.2 Graduality | 第30-31页 |
| 2.2.3 Generalization | 第31-32页 |
| 2.3 The Mechanisms of Grammaticalization | 第32-35页 |
| 2.3.1 Reanalysis | 第32-33页 |
| 2.3.2 Analogy | 第33-35页 |
| 2.4 Motivations of Grammaticalization | 第35-38页 |
| 2.4.1 Metonymy in Grammaticalization | 第36-37页 |
| 2.4.2 Subjectivization | 第37-38页 |
| 2.5 Summary | 第38-40页 |
| Chapter Three The Diachronic Evolution Process of English Conditionals | 第40-54页 |
| 3.1 The Syntactic Forms of if-Conditionals in Modern English | 第40-41页 |
| 3.2 The Division of English History | 第41-42页 |
| 3.3 Diachronic Evolutional Process of if-Conditionals | 第42-52页 |
| 3.3.1 The Origin and Evolution Path of if-Conditionals | 第42-45页 |
| 3.3.2 Semantic Extension of if-Conditionals | 第45-49页 |
| 3.3.3 The Evolution of Unreal Conditionals | 第49-52页 |
| 3.4 Summary | 第52-54页 |
| Chapter Four The Diachronic Evolution Process of Chinese Conditionals | 第54-70页 |
| 4.1 The Syntactic Forms of ru guo-Conditionals in Modem Chinese | 第54-55页 |
| 4.2 The Diachronic Evolution Process of ru guo-Conditionals | 第55-66页 |
| 4.3 The Motivations and Mechanism of ruguo-Conditionals | 第66-67页 |
| 4.4 Summary | 第67-70页 |
| Chapter Five A Comparative Analysis of Diachronic Evolution of English and Chinese Conditionals | 第70-90页 |
| 5.1 Similarities | 第70-76页 |
| 5.1.1 Similarities in Diachronic Evolutional Process | 第70-72页 |
| 5.1.2 Similarities in Diachronic Evolutional Mechanism | 第72-76页 |
| 5.2 Differences | 第76-81页 |
| 5.2.1 Differences in Diachronic Evolutional Process | 第76-77页 |
| 5.2.2 Differences in Diachronic Evolution Mechanisms | 第77-78页 |
| 5.2.3 Differences in Diachronic Evolution Degree | 第78-81页 |
| 5.3 Cognitive motivations of the Similarities and Differences | 第81-88页 |
| 5.3.1 Subjectivization | 第81-84页 |
| 5.3.2 Metonymy | 第84-88页 |
| 5.4 Summary | 第88-90页 |
| Conclusion | 第90-94页 |
| Bibliography | 第94-102页 |
| Acknowledgements | 第102-104页 |