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List of Figures List of Abbreviations Chapter 1 Introduction 1.1 Types of enhanced theme constructions 1.2 The existential enhanced theme construction 1.2.1 "The EET construction" as a choice 1.2.2 Four types of EET constructions 1.3 Theoretical orientation 1.4 Objectives and research questions 1.5 Terms used in other studies 1.6 Data and methodology 1.7 The organization of the book Chapter 2 A Review of Previous Studies 2.1 Introduction 2.2 Traditional descriptive approaches 2.2.1 Jespersen (1937/1984, 1945/1965) 2.2.2 Bolinger (1977) 2.2.3 Quirk and Greenbaum (1973) and Quirk et al.(1985) 2.2.4 Huddleston (1984, 1988) 2.2.5 Biber et al.(1999/2000) 2.2.6 Huddleston and Pullum (2002) 2.3 Generative grammar approaches 2.3.1 Chomsky (1981) 2.3.2 Lumsden (1988) 2.3.3 Chomsky (1995) 2.3.4 Han (2001) 2.3.5 Tang (2001) 2.4 Functional approaches 2.4.1 Scottetal(1968) 2.4.2 Dik (1980, 1981) 2.4.3 Hannay (1985) 2.4.4 Young (1980) 2.4.5 Morley (2000) 2.4.6 Kuno and Takami (2004) 2.5 The Madrid Grammar approach 2.6 Concluding remarks Chapter 3 The Existential Enhanced Theme Construction: Towards a Theory-Neutral Description 3.1 Introduction 3.2 Basic characteristics of the construction 3.2.1 There 3.2.2 The Main Verb 3.2.3 Subject-verb agreement and a tentative account 3.2.4 The postverbal nominal group 3.2.5 The post-ngp element 3.3 Summary and conclusion Chapter 4 The Theoretical Framework 4.1 Introduction 4.2 Systemic functional grammar 4.2.1 Scales and categories 4.2.2 System and system network