| Chapter One Theoretical Background | 第8-14页 |
| 1.1 The acquisition-learning hypothesis | 第9页 |
| 1.2 The natural order hypothesis | 第9-10页 |
| 1.3 The monitor hypothesis | 第10-11页 |
| 1.4 The input hypothesis | 第11-12页 |
| 1.5 The affective filter hypothesis | 第12-14页 |
| Chapter Two Input Hypothesis and Output Hypothesis | 第14-33页 |
| 2.1 Comprehension-based theories and second language acquisition | 第14-19页 |
| 2.1.1 Krashen's input hypothesis | 第14-16页 |
| 2.1.2 Interaction input hypothesis | 第16-18页 |
| 2.1.3 Acculturation hypothesis | 第18-19页 |
| 2.2 Production-based theories and second language acquisition | 第19-27页 |
| 2.2.1 Criticism on Krashen's theory | 第19-22页 |
| 2.2.2 Output hypothesis | 第22-27页 |
| 2.3 Comprehension and production | 第27-33页 |
| 2.3.1 Input precedes output | 第28-30页 |
| 2.3.2 Output supplements input | 第30-33页 |
| Chapter Three The Roles at Different Language Stages | 第33-45页 |
| 3.1 At the language developing stage | 第33-38页 |
| 3.1.1 The goal of oral teaching | 第33-35页 |
| 3.1.2 The role of teacher | 第35-37页 |
| 3.1.3 The role of grammar | 第37-38页 |
| 3.2 At the language developed stage | 第38-45页 |
| 3.2.1 The role of communication | 第39-40页 |
| 3.2.2 The role of low affective filter | 第40-44页 |
| 3.2.3 The role of three functions of output | 第44-45页 |
| Chapter Four Activities at Different Language Stages | 第45-58页 |
| 4.1 Activities at language developing stage | 第45-49页 |
| 4.2 Activities at language developed stage | 第49-58页 |
| Conclusion | 第58-59页 |
| Bibliography | 第59-61页 |
| Abstract (English) | 第61页 |
| Abstract (Chinese) | 第63-64页 |
