声明
Acknowledgements
Abstract
摘要
Contents
List of Abbreviations
Chapter One Introduction
1.1 The Background of the Study
1.2 Necessity and Significance of the Study
1.3 Objectives of the Study
1.4 Organization of the Thesis
Chapter Two Literature Review
2.1 Introduction
2.1.1 Definition of PBL
2.1.2 Characteristics of PBL
2.1.3 Objectives of PBL
2.2 Theoretical Frameworks for PBL
2.2.1 Constructivism Theory
2.2.2 Humanism Theory
2.3 Previous Researches on PBL
2.4 Summary
Chapter Three Research Methodology
3.1 Research Questions
3.2 Subjects
3.3 Research Instruments
3.3.1 Questionnaires
3.3.2 Tests
3.3.3 Interviews
3.4 Treatment
3.4.1 Teaching in the Experimental Group
3.4.2 Teaching in the Control Class
3.5 Data Collection and Analysis Procedure
Chapter Four Results and Discussion
4.1 Effect of PBL on Students’ Oral English Competence
4.1.1 The Effect of PBL on Students’ Competence in Passage Reading
4.1.2 The Effect of PBL on Students’ Competence in Talking About a Given Topic and Making a Dialogue about a Given Situation
4.2 The Effect of PBL on Students’ Learning Initiative
4.2.1 The Effect of PBL on Stimulating Students’ Learning Interest and Autonomy
4.2.2 The Effect of PBL on Students’ Confidence and Anxiety
Chapter Five Conclusion
5.1 Major Findings of the Study
5.1.1 PBL Improves the Students’ Oral English Competence
5.1.2 PBL Stimulates Students’ Learning Initiative
5.2 Implications of the Study
5.3 Limitations of the Study and Suggestions for Further Research
References
Appendices
Appendix A Pre-q uestionnaire
Appendix B Post-questionnaire
Appendix C Pre-test Paper
Appendix D Post-test Paper
Appendix E 四六级口语考试评分标准
Appendix F 前测后测成绩
Appendix F Students’ Interview
Publications