| Acknowledgements | 第1-4页 |
| Abstract | 第4-7页 |
| Chapter Ⅰ Introduction | 第7-11页 |
| ·The Importance and Difficulty of Speaking | 第7-8页 |
| ·Communication and Communicative Competence | 第8-9页 |
| ·Overview of the Thesis | 第9-11页 |
| Chapter Ⅱ Second Language Acquisition Theory | 第11-22页 |
| ·The Historical Background of SLA | 第11-12页 |
| ·The Different Theories on Language Learning | 第12-22页 |
| ·Input Hypothesis | 第12-14页 |
| ·Output Hypothesis | 第14-16页 |
| ·Interaction Hypothesis | 第16-19页 |
| ·The Relationships among These Three Hypotheses | 第19-21页 |
| ·Implications of These Three Hypotheses | 第21-22页 |
| Chapter Ⅲ The Brief Literature Review | 第22-35页 |
| ·Classroom Interaction and Second Language Acquisition | 第22-24页 |
| ·The Literature Review of Previous Research | 第24-33页 |
| ·Student-Student Interaction | 第25-28页 |
| ·Speaking Activities with Information Gap or with no Information Gap | 第28-33页 |
| ·The Orientation of the Present Research | 第33-35页 |
| Chapter Ⅳ The Present Research | 第35-53页 |
| ·Questionnaire Design | 第35页 |
| ·Procedure | 第35-36页 |
| ·Subjects | 第36页 |
| ·Data Description and Analysis | 第36-53页 |
| ·Data Description about the Students' Questionnaire | 第36-44页 |
| ·The Four Basic Skills: Listening, Speaking, Reading,Writing | 第36-38页 |
| ·The Forms and Effects of Classroom Speaking Activities | 第38-40页 |
| ·The Group Size and Organization of Classroom Speaking Activities | 第40-42页 |
| ·The Active Participation in Classroom Speaking Activities | 第42-44页 |
| ·Data Description about the Teachers' Questionnaire | 第44-53页 |
| ·The Four Basic Skills: Listening, Speaking, Reading, Writing | 第44-46页 |
| ·The Forms and Effectiveness of Classroom Speaking Activities | 第46-48页 |
| ·The Group Size and Organization of Classroom Speaking Activities | 第48-50页 |
| ·The Active Participation in Classroom Speaking Activities | 第50-53页 |
| Chapter Ⅴ Data Discussion | 第53-58页 |
| ·Discussion about the Weakest Skill: Speaking | 第53-54页 |
| ·Discussion about the Effects of Classroom Speaking Activities | 第54-55页 |
| ·Discussion about the Grouping and Negotiation of Meaning | 第55-58页 |
| Chapter Ⅵ Conclusion and Further Research | 第58-65页 |
| ·Summary of Findings | 第58-59页 |
| ·Pedagogical Implications | 第59-62页 |
| ·More Opportunities for Student-Student Interaction | 第59-60页 |
| ·Implementation and Organization of Classroom Speaking Activities | 第60-61页 |
| ·Students'Actual Participation | 第61-62页 |
| ·Suggestions for Further Research | 第62-65页 |
| References | 第65-72页 |
| Appendix 1: Questionnaire for Non-English Major Students | 第72-75页 |
| Appendix 2: Questionnaire for English Teachers | 第75-77页 |
| Appendix 3: The Pre-Activity with Information Gap | 第77-82页 |
