封面
声明
英文摘要
中文摘要
目录
List of Tables
List of Figures
Introduction
1 Literature Review
1.1 Theoretical background
1.2 Previous studies
2 Methodology
2.1 Data collection
2.2 Data analysis
3 Results and Discussion
3.1 Frequency and proportion of personal and impersonal authorial
3.2 Discourse functions of personal authorial and impersonal
3.3 Summary
Conclusion
参考文献
致谢
Appendix I Research articles in the L1 corpus
Appendix II Research articles in L2 corpus
Appendix III Tagging system in L1 and L2 corpus