| INTRODUCTION | 第1-13页 |
| PART ONE: DEFINING INCIDENTAL VOCABULARY ACQUISITION | 第13-26页 |
| 1． VOCABULARY ACQUISITION | 第13-15页 |
| 2． INCIDENTAL VOCABULARY ACQUISITION | 第15-21页 |
| a． A definition for incidental vocabulary learning | 第15-16页 |
| b． Incidental versus intentional learning | 第16-18页 |
| c． Implicit/explicit learning versus incidental/intentional learning | 第18-19页 |
| d． dustin;lng the necessity for incidental vocabulary learning | 第19-21页 |
| 3． A CONSTRUCT OF TASK-INDUCED INVOLVEMENT IN INCIDENTAL VOCABULARY ACQUISITION | 第21-26页 |
| a． Involvement | 第22-23页 |
| b． Involvement Load | 第23-24页 |
| c． Task-induced involvement load | 第24-26页 |
| PART TWO: LITERATURE REVIEW | 第26-51页 |
| 1． CONNECTIONISM AND SECOND LANGUAGE VOCABULARY | 第27-29页 |
| 2． DEPTH OF PROCESSING | 第29-31页 |
| 3． ROLE OF CONSCIOUSNESS IN SLA | 第31-39页 |
| a． Tomlin and Villa's Attentional construct | 第32-34页 |
| b． Michael Long's Focus On Form | 第34-35页 |
| c． Sharwood-Smith's input enhancement | 第35-36页 |
| d． Schmidt's noticing hypothesis | 第36-39页 |
| 4． TASK-BASED INSTRUCTION | 第39-43页 |
| a． A Definition of task-based instruction | 第39-40页 |
| b． Implementation of task-based instruction | 第40页 |
| c． Skehen's principles for task-based instruction implementation | 第40-43页 |
| 5． AFFECTIVE ASPECTS OF L2 LEARNING | 第43-50页 |
| a． Some influential approaches to motivation and SL learning | 第44-45页 |
| b． Affect and Cognition | 第45-47页 |
| c． Keller's education-oriented motivational construct | 第47-50页 |
| 6． SUMMARY | 第50-51页 |
| PART THREE: AN EMPIRICAL STUDY | 第51-73页 |
| 1． OBJECTIVES OF THE EXPERIMENT | 第51-53页 |
| 2． EXPERIMENT DESIGN | 第53-59页 |
| 3． RESULTS | 第59-66页 |
| 4． DISCUSSION | 第66-73页 |
| Objectives achieved | 第66-67页 |
| Limitations and further research | 第67-73页 |
| CONCLUSION | 第73-76页 |
| REFERENCES | 第76-78页 |
| APPENDIXES | 第78-100页 |
