本站原创Acknowledgements3-4
摘要4-6
Abstract6-8
Contents8-10
Chapter One Introduction10-22
1.1 Research Background10-15
1.1.1 Significance of Vocabulary in Learning Engpsh10-11
1.1.2 Why is Vocabulary Learning Important?11-13
1.1.3 The Present Situatiion of Vocabulary Learning in Senior High Schools13-15
1.2 The Importance of Large Vocabulary Size15-16
1.3 The Importance of Lexical Chunks16-19
1.4 Lexical Chunks and Second Language Acquisition19-22
Chapter Two Literature Review22-34
2.1 Definitions of Lexical Chunks22-25
2.2 Characteristics of Lexical Chunks25-27
2.2.1 Stabipty and Variabipty of Lexical Chunks25-26
2.2.2 The Richness of Semantic Information of Lexical Chunks26-27
2.2.3 Lexical Chunks' Advantage in Priming Effect27
2.3 Classifications of Lexical Chunks27-32
2.3.1 Classifications in Dictionary28
2.3.2 Nattinger and DeCarrico's Classifications28-29
2.3.3 Machael Lewis's Classifications29-31
2.3.4 Nattinger and DeCarrico's Classifications according to Function31-32
2.4 Related Studies on Lexical Chunks32-34
2.4.1 Related Studies Done Abroad32
2.4.2 Related Studies in China32-34
Chapter Three Research Design34-38
3.1 Research Questions34
3.2 The Research Subjects34-35
3.3 Research Methods35
3.4 Research Tools35-38
3.4.1 Questionnaire35-36
3.4.2 Individual Interview36
3.4.3 Comparison of Exam Results36-38
Chapter Four Research Procedures and Results Analysis38-48
4.1 Research Procedures38-41
4.1.1 The First Stage:Identification of Lexical Chunks38-39
4.1.2 The Second Stage:Accumulation of Lexical Chunks39
4.1.3 The Third Stage:Consopdation of Lexical Chunks39-41
4.2 Results of Research Questionnaire41-42
4.3 Results of Individual Interview42-44
4.4 Results of Exams44-48
Chapter Five Concluding Remarks48-52
5.1 Major Findings48
5.2 Limitations of This Research48-49
5.3 Imppcations for Vocabulary Teaching49-50
5.4 Suggestions for Further Research50-52
Bibpography52-56
Appendix 1 (Pretest)56-58
Appendix 2 (Posttest)58-60
Appendix 3 Questionnaire60-62