CHAPTER ONE INTRODUCTION 1.1 The Purpose of the Study 1.2 Research Methodology 1.3 The Organization of the Paper CHAPTER TWO LITERATURE REVIEW 2.1 Basic Concepts of SAT 2.1.1 Philosophical Background of SAT 2.1.2 General Introduction to Speech Act 2.1.3 Austin's Three Kinds of Speech Acts 2.1.4 Searle's Improvements and Implications 2.1.5 Felicity Conditions 2.2 Irony and SAT 2.2.1 Irony and Indirect Speech Act 2.2.2 Irony and Sincerity Principle 2.2.3 Irony and Illocutionary Force 2.2.4 Irony and Perlocutionary Effect CHAPTER THREE A BRIEF SURVEY OF SENSE AND SENSIBILITY, TYPES AND MAIN FEATURES OF LANGUAGE MATERIALS 3.1 A Brief Survey of Sense and Sensibility 3.2 Author's Irony in Sense and Sensibility 3.3 Types of Language Materials 3.3.1 Macro Ironic Speech Acts 3.3.2 Micro Ironic Speech Acts CHAPTER FOUR A USE OF AUSTIN'S AND SEARLE'S SAT 4.1 Three Forms of lnfelicities in Illocutionary Act in Austin's SAT 4.2 Irony and Infelicities in Sense and Sensibility 4.2.1 Void 4.2.2 Breaches 4.2.3 Insincerities 4.3 Irony and Perlocutionary Effect 4.4 Macro Ironic Speech Acts Based on Searle's SAT 4.4.1 Macro Literal Irony 4.4.2 Macro Structural Irony 4.5 Micro Ironic Speech Acts Based on Searle's SAT 4.5.1 Assertive Irony 4.5.2 Directive Irony 4.5.3 Commissive Irony 4.5.4 Expressive Irony CHAPTER FIVE CONCLUSION 5.1 Major Findings 5.2 Limitations and Further Study REFERENCES