声明
Acknowledgements
Abstract
摘要
Contents
List of Tables and Figures
Chapter 1 Introduction
1．1 Research Background
1．2 Aims and Significance of the Research
1．3 Layout of the Thesis
Chapter 2 Literature Review
2．1 Lexieal Chunk
2．1．1 Terminology of Multi-word Unit
2．1．2 Definitions of Lexical Chunk
2．1．3 Classification of Lexical Chunks
2．2 Corpus and Corpus-based Approach
2．2．1 Introduction of Corpus
2．2．2 Corpus-based Approach
2．3 Brief Review of Empirical Studies on Lexical Chunks
Chapter 3 Research Methodology
3．1 Research Objectives and Questions
3．2 Construction of CEAWCL and CEAWNS
3．3 Software Used
3．4 Retrieval of Lexical Chunks
3．4．1 Software Extraction
3．4．2 Manual Filtering
3．5 Data Processing and Analysis
3．6 Summary
Chapter 4 Data Analysis and Discussion
4．1 Comparison in Distribution
4．1．1 Distribution of 3-to-6-word Lexical Chunks in CEAWCL
4．1．2 Comparison of the Distribution of 3-to-6-word Lexical Chunks in CEAWNS with CEAWCL
4．2 Comparison in Structure
4．2．1 Structural Classification of 4-word Lexical Chunks in CEAWCL
4．2．2 Comparison between Structures of 4-word Lexicai Chunks in CEAWCL and CEAWNS
4．3 Pragmatic Functions of 4-word Lexical Chunks in CEAWCL
4．3．1 Functional Classification of 4-word Lexical Chunks in CEAWCL and CEAWNS
4．3．2 Functions of Research-oriented Lexical Chunks in CEAWCL
4．3．3 Functions of Text-oHented Lexicai Chunks in CEAWCL
4．3．4 Functions of Participant-oriented Lexical Chunks in CEAWCL
4．4 Summary
Chapter 5 Conclusion
5．1 Major Findings
5．2 Pedagogic Implications and Suggestions
5．2．1 Implications and Suggestions for Teaching
5．2．2 Implications and Suggestions for Learning
5．3 Limitations and Suggestions for Further Studies
References
Publication
