| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-11页 |
| Chapter 1 Introduction | 第11-16页 |
| ·Research Background | 第11-13页 |
| ·Significance of the Paper | 第13-14页 |
| ·Layout of the Paper | 第14-16页 |
| Chapter 2 Literature Review | 第16-33页 |
| ·The Definition and Classifications of Causal Connectives | 第16-21页 |
| ·Definition of Causal Connectives | 第16-17页 |
| ·Classifications of Causal Connectives | 第17-21页 |
| ·Corpus linguistics | 第21-26页 |
| ·Basic Information of Corpus linguistics | 第21-23页 |
| ·Diachronic Corpus | 第23-24页 |
| ·Reference Corpus | 第24-25页 |
| ·Corpus-based Approach | 第25-26页 |
| ·Theories in Learner Language | 第26-29页 |
| ·Interlanguage | 第26-27页 |
| ·Contrastive Interlanguage Analysis (CIA) | 第27-28页 |
| ·Error Analysis (EA) | 第28-29页 |
| ·Previous Studies on Causal connectives | 第29-33页 |
| ·Previous Studies Abroad | 第30-31页 |
| ·Previous Studies in China | 第31-33页 |
| Chapter 3 Methodology | 第33-43页 |
| ·Introduction to the Corpora Used in this Study | 第33-35页 |
| ·Diachronic Written Corpus for Chinese English Majors (DWCCEM) | 第33-34页 |
| ·Written Corpus of Native Speakers (NWC) | 第34-35页 |
| ·Research Questions | 第35-37页 |
| ·Data Collection and Processing | 第37-43页 |
| ·Retrieving Tools and Software | 第37-40页 |
| ·Research Procedures | 第40-43页 |
| Chapter 4 Results and Discussion | 第43-76页 |
| ·The Different Overall Frequency of Causal Connectives between DWCCEM andNWC | 第43-46页 |
| ·The Different Range of Causal Connectives in DWCCEM and NWC | 第46-51页 |
| ·The Contrastive Analyses of Causal Adverbs in DWCCEM and NWC | 第51-62页 |
| ·The Most Frequently Used Causal Adverbs | 第51-53页 |
| ·Overused and Underused Causal Adverbs | 第53-54页 |
| ·Positions of Causal Adverbs | 第54-57页 |
| ·Patterns of Causal Adverbs | 第57-60页 |
| ·Improper Use of Causal Adverbs | 第60-62页 |
| ·The Contrastive Analyses of Causal Conjuncts in DWCCEM and NWC | 第62-74页 |
| ·Frequently Used Causal Conjuncts | 第62-64页 |
| ·Overused and Underused Causal Conjuncts | 第64-66页 |
| ·Analysis of “Because” | 第66-74页 |
| ·Pedagogical Implications | 第74-76页 |
| Chapter 5 Conclusion | 第76-79页 |
| Works Cited | 第79-83页 |
| 攻读硕士学位期间发表的论文和取得的科研成果 | 第83页 |
