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Ŀ¼£ºContents

Chapter One Introduction 1
1.1 Need for the Study 1
1.2 Significance of the Study 3
1.3 Organization of the Thesis 4
Chapter Two Literature Review 6
2.1 Incidental Vocabulary Acquisition 6
2.1.1 Definitions of Incidental Vocabulary Acquisition 6
2.1.2 Advantages and Disadvantages of Incidental Vocabulary Acquisition 8
2.1.3 Summary 10
2.2 Incidental Vocabulary Acquisition and L2 Reading 10
2.2.1 Incidental Vocabulary Acquisition through L2 Reading 11
2.2.2 Advantages and Disadvantages of Incidental Vocabulary Acquisition through L2
Reading 13
2.2.3 Summary 15
2.3 Factors Influencing Incidental Vocabulary Acquisition through L2 Reading 16
2.3.1 Learner Factors 16
2.3.2 Text Factors 18
2.3.3 Lexicon Factors 18
2.3.4 Context Factors 20
2.3.5 Summary 21
2.4 Ways to Enhance Incidental Vocabulary Acquisition 21
2.5 Glosses 23
2.5.1 Definitions of Glosses 23
2.5.2 Types of Glosses 24
2.5.3 Functions of glosses 25
2.5.4 Summary 26
2.6 Previous Studies on Effects of Glosses on Incidental Vocabulary Acquisition through
Reading 27
2.6.1 Effects of Glosses in Different Languages on Incidental Vocabulary Acquisition 27
2.6.2 Effects of Glosses with Different Numbers on Incidental Vocabulary Acquisition 31
2.6.3 Effects of Glosses in Different Positions on Incidental Vocabulary Acquisition 35
2.6.4 Limitations of the Previous Studies 38
2.6.5 Summary 41
2.7 Theoretical Framework 41
2.7.1 Theory of Depth Processing 41
2.7.2 Involvement Load Hypothesis 43
2.7.3 Noticing Hypothesis 45
2.7.4 Input Hypothesis 46
2.7.5 Output Hypothesis 47
2.7.6 Summary 48
2.8 Summary 48
Chapter Three Research Design 49
3.1 Reading Material 49
3.2 Time for the Delayed Vocabulary Test 50
3.3. Evaluation of Learners’ Language Proficiency 51
3.4 Assessment of Incident Vocabulary Acquisition 52
3.5 Summary 54
Chapter Four Empirical Study I 55
4.1 Methodology 55
4.1.1 Research Questions 55
4.1.2 Participants 55
4.1.3 Target Words 56
4.1.4 Date Collection 57
4.2 Data Analysis and Results 57
4.2.1 Relationship between Leaners’ Language Proficiency and Reading Comprehension 57
4.2.1.1 Reading Comprehension under Four Glossing Conditions 57
4.2.1.2 Effects of Learners’ Language Proficiency on Reading Comprehension 60
4.2.2 Relationship between Learners’ Language Proficiency and Incidental Vocabulary Acquisition 62
4.2.2.1 Results of the Immediate Vocabulary Test 62
4.2.2.2 Results of the Delayed Vocabulary Test 66
4.2.2.3 Differences between Two Vocabulary Tests 70
4.3 Discussion 74
4.4 Summary 79
Chapter Five Empirical Study II 80
5.1 Methodology 80
5.1.1 Research Questions 80
5.1.2 Participants 80
5.1.3 Target Words 81
5.1.4 Date Collection 82
5.2 Data Analysis and Results 82
5.2.1 Relationship between Learners’ Language Proficiency and Reading Comprehension 82
5.2.1.1 Reading Comprehension under Two Glossing Conditions 83
5.2.1.2 Effects of Learners’ Language Proficiency on Reading Comprehension 84
5.2.2 Relationship between Learners’ Language Proficiency and Incidental Vocabulary Acquisition 85
5.2.2.1 Results of the Immediate Vocabulary Test 85
5.2.2.2 Results of the Delayed Vocabulary Test 87
5.2.2.3 Differences between Two Vocabulary Tests 89
5.3 Discussion 92
5.4 Summary 96
Chapter Six Empirical Study III 97
6.1 Methodology 97
6.1.1 Research Questions 97
6.1.2 Participants 97
6.1.3 Target Words 98
6.1.4 Data Collection 99
6.2 Data Analysis and Results 99
6.2.1 Relationship between Learners’ Language Proficiency and Reading Comprehension 99
6.2.1.1 Reading Comprehension under Four Glossing Conditions 99
6.2.1.2 Effects of Learners’ Language Proficiency on Reading Comprehension 102
6.2.2 Relationship between Learners’ Language Proficiency and Incidental Vocabulary Acquisition 103
6.2.2.1 Results of the Immediate Vocabulary Test 103
6.2.2.2 Results of the Delayed Vocabulary Test 106
6.2.2.3 Differences between Two Vocabulary Tests 110
6.3 Discussion 113
6.4 Summary 118
Chapter Seven Conclusion 119
7.1 Major Findings of the Research 119
7.2 Implications of the Research 124
7.3 Limitations of the Research 127
7.4 Suggestions for the Future Research 127
References 129
Appendices 138