Chapter 1 Introduction
1.1 Motivations for the book
1.2 Research objectives
1.3 Outline of the book

Chapter 2 Critical Discussion of the Previous Studies on Learner Language
2.1 Changes in current linguistic and SLA research
2.2 Main features of CLC data
2.3 Methodological approaches to CLC research
2.4 Studies based on learner corpora
2.5 Conversation analysis
2.6 Communicative competence
2.7 Conclusion

Chapter 3 Defining Oral Communicative Ability
3.1 Features of oral communication
3.2 Accuracy, fluency and appropriacy
3.3 Four essential components
3.4 Conclusion

Chapter 4 Research Methodology
4.1 The COLSEC
4.2 The data in the book
4.3 Methods for data extraction and processing
4.4 Summary

Chapter 5 Findings and Analysis (1)：Productive Vocabulary Size and the Ability to Use PCs
5.1 Productive vocabulary size
5.2 The ability to use PCs
5.3 Summary

Chapter 6 Findings and Analysis (2): the Ability to Manipulate Schemata
6.1 Introduction
6.2 Key words for the Use of Computers
6.3 Key words for Going on Tour
6.4 Discussion and conclusion

Chapter 7 Findings and Analysis (3): Pragmatic Competence and Strategic Competence
7.1 Pragmatic markers
7.2 Interruptions and overlaps
7.3 Strategies for taking, holding and yielding turns
7.4 Reactive tokens
7.5 Summary

Chapter 8 Conclusion
8.1 Summary of findings
8.2 Implications for pedagogy
8.3 Limitations of the book
8.4 Directions for further researches

Appendices
Appendix A An error classification system
Appendix B Error types in three groups
Appendix C Collocates of IMPROVE in the position of n in the pattern V n from the SBNC
Appendix D Collocates of KNOWLEDGE in the pattern v N from the SBNC
References