| ACKNOWLEDGEMENTS | 第5-6页 |
| abstract | 第6-7页 |
| 摘要 | 第8-13页 |
| CHAPTER Ⅰ INTRODUCTION | 第13-19页 |
| 1.1 Research Background | 第13-16页 |
| 1.2 Research Purposes | 第16页 |
| 1.3 Significance of Research | 第16-17页 |
| 1.4 Framework of the Paper | 第17-19页 |
| CHAPTER Ⅱ LITERATURE REVIEW | 第19-38页 |
| 2.1 Core Concepts | 第19-22页 |
| 2.1.1 Incidental Vocabulary Acquisition | 第19-21页 |
| 2.1.2 Glosses | 第21-22页 |
| 2.2 Theoretical Bases for the Study | 第22-28页 |
| 2.2.1 Krashen's Language Input Hypothesis | 第22-24页 |
| 2.2.2 The Depth of Processing Theory | 第24-26页 |
| 2.2.3 The Involvement Load Hypothesis | 第26-28页 |
| 2.3 Influencing Factors of Incidental Vocabulary Acquisition | 第28-34页 |
| 2.3.1 Learner factors | 第29-32页 |
| 2.3.1.1 Learners' reading ability and familiarity with the topic | 第29-30页 |
| 2.3.1.2 The vocabulary size of L2 learners | 第30-31页 |
| 2.3.1.3 Learners' ability of guessing new words | 第31-32页 |
| 2.3.2 Reading material factors | 第32-34页 |
| 2.3.2.1 The proportion of the new words in the text | 第32页 |
| 2.3.2.2 The frequency of new words appearing in the text | 第32-33页 |
| 2.3.2.3 Reading tasks | 第33-34页 |
| 2.4 The Related Studies | 第34-38页 |
| 2.4.1 Empirical studies on single and multiple-choice glosses | 第34-36页 |
| 2.4.2 Empirical studies on the L1 and L2 glosses | 第36-38页 |
| CHAPTER Ⅲ RESEARCH METHOD | 第38-47页 |
| 3.1 Research Questions | 第38页 |
| 3.2 Research Assumptions | 第38-39页 |
| 3.3 Research Subjects | 第39-40页 |
| 3.4 Research Instruments | 第40-44页 |
| 3.4.1 Reading comprehensions and target vocabularies | 第40-42页 |
| 3.4.2 The scoring criteria | 第42-44页 |
| 3.5 Research Methods | 第44-47页 |
| 3.5.1 Documentary research method | 第44页 |
| 3.5.2 Experimental method | 第44-47页 |
| CHAPTER Ⅳ RESULTS AND DISCUSSION | 第47-56页 |
| 4.1 Results of Data Analyses | 第47-52页 |
| 4.1.1 Results of the incidental vocabulary test | 第47-48页 |
| 4.1.2 Results of the delayed test | 第48-50页 |
| 4.1.3 A Comparison of drop rates in the two tests | 第50-51页 |
| 4.1.4 Differences in the incidental vocabulary acquisition among grades | 第51-52页 |
| 4.2 Discussion | 第52-56页 |
| CHAPTER Ⅴ CONCLUSION | 第56-62页 |
| 5.1 Major Findings | 第56-57页 |
| 5.2 Implications for Pedagogy | 第57-59页 |
| 5.3 Limitations of the Study and Suggestions for Future Researches | 第59-62页 |
| REFERENCES | 第62-68页 |
| APPENDICES | 第68-84页 |
| Appendix Ⅰ Reading Materials and Vocabulary Tests in Grade Seven | 第68-73页 |
| Appendix Ⅱ Reading Materials and Vocabulary Tests in Grade Eight | 第73-79页 |
| Appendix Ⅲ Reading Materials and Vocabulary Tests in Grade Nine | 第79-84页 |
