文摘
英文文摘
Chapter 1 Introduction
1.1 A Short History of Tense
1.2 Contradiction Between Language Facts and Past Tense Theories
1.3 Attempts to Solve the Problem
1.4 Layout of the Thesis
Chapter 2 Theoretical Background
2.1 A Brief Introduction to Cognitive Grammar
2.2 Image Schema
2.3 Metaphorical Mapping
2.4 Conceptual Blending Theory
2.5 Summary
Chapter 3 Metaphorical Extensions of Past Tense
3.1 Time-as-space Metaphor
3.2 Root Meaning of Past Tense
3.3 Non-past Uses of Past Tense
3.3.1 Back-shift
3.3.2 Hypothetical Past
3.3.3 Attitudinal Past
3.4 Summary
Chapter 4 Non-metaphorical Extensions of Past Tense
4.1 Shifted Use of Past Tense
4.2 Mixed Tense Use
4.3 Summary
Chapter 5 Conclusion
5.1 Significance of the Research
5.2 Issues Worthy of Further Study
Acknowledgements
Bibliography
Articles Published
