Chapter One　Introduction

1.1　Theoretical backgrounds of the present study

1.2　The objectives of the present study

1.3　The organization of the book

Chapter Two　The Notion of Context Revisited

2.1 Introduction

2.2　The socio-cultural approach to context of situation

2.2.1　The concept of context in pragmatics

2.2.1.1　Leech's view of speech situation

2.2.1.2　van Dijk's notion of context

2.2.1.3　Hymes'concept of speech situation:SPEAKING

2.2.1.4 Lyons'context of utterance

2.2.1.5 Gazdar's view of context

2.2.2 Context in Systemic Functional Linguistics

2.2.2.1 Context of situation in the pre-Halliday era(1):Malinowski's view

2.2.2.2 Context of situation in the pre-Halliday era(2):Firth's view

2.2.2.3 Context of situation as a socio-semiotic construct:the notion in SFL

2.3 The cognitive approach to the notion of context

2.3.1 Context as cognitive representation of the conceptual interaction

2.3.2 Context as domain

2.3.3 Context as frame

2.3.4 Context as script

2.4 The notion of context of situation in SFL revisited

2.4.1 Field of discourse

2.4.2 Tenor of discourse

2.4.3 Mode of discourse

2.5 Summary

Chapter Three Language Functions and Their Realizations

3.1 Introduction

3.2 Traditional views of language functions

3.2.1 Jakobson's categorization of language functions

3.2.2 Hymes'model of language functions

3.2.3 Brown＆Yule's dichotomy

3.3 Metafunctions and their grammatical realizations

3.3.1 The ideational metafunction and its grammatical realization

3.3.1.1 Classification of processes

3.3.1.2 Internal structure of the process

3.3.2 The interpersonal metafunction and its grammatical realization

3.3.2.1 Mood

3.3.2.2 Modality

3.3.3 The textual metafunction and its realization

3.3.3.1 Structural resources

3.3.3.2 Non-structural resources:cohesive devices

3.4 Rethinking linguistic realizations of metafunctions

3.4.1 The ideational metafunction and its lexical realization

3.4.2 The interpersonal metafunction and its other realizations

3.4.3 The textual metafunction and nominalization

3.5 Summary

Chapter Four CMH Hypothesis Revisited

4.1 Introduction

4.2 CMH hypothesis

4.3 Field of discourse and ideational metafunction

4.3.1 Action-based vs. reflection-based fields

4.3.2 Specialized vs. non-specialized fields

4.3.3 Institutionalized vs. non-institutionalized fields

4.4 Tenor of discourse and interpersonal metafunction

4.4.1 Social distance and interpersonal metafunction

4.4.2 Affective involvement and interpersonal metafunction

4.4.3 Power and interpersonal metafunction

4.5 Mode of discourse and textual netafunction

4.5.1 Spontaneity and textual metafunction

4.5.2 Spatial/temporal distance and textual metafunction

4.5.3 Semiotic role and textual metafunction

4.6 Rethinking CMH Hypothesis

4.7 Summary

Chapter Five Interaction between Contextual Variables

5.1 Introduction

5.2 Impact of field upon tenor

5.2.1 Impact of subject matter upon tenor

5.2.2 Impact of arena upon tenor

5.2.3 Impact of semantic domain upon tenor

5.3 Impact of field upon mode

5.3.1 Impact of subject matter upon mode

5.3.2 Impact of arena upon mode

5.3.3 Impact of semantic domain upon mode

5.4 Impact of tenor upon field

5.4.1 Impact of social distance upon field

5.4.2 Impact of power upon field

5.4.3 Impact of affective involvement upon field

5.5 Impact of tenor upon mode

5.5.1 Impact of affective involvement upon mode

5.5.2 Impact of social distance upon mode

5.6 Impact of mode upon field

5.6.1 Impact of semiotic role upon field

5.6.2 Impact of spatial/temporal distance upon field

5.6.3 Impact of channel upon field

5.7 Impact of mode upon tenor

5.7.1 Impact of spontaneity upon tenor

5.7.2 Impact of genre upon tenor

5.8 Summary

Chapter Six CMH Hypothesis Revised:Multivariate Relation-ships between Contextual Variables and Metafunctions

6.1 Introduction

6.2 Impact of field upon interpersonal choices

6.2.1 Impact of field upon the selection of vocatives

6.2.2 Impact of field upon code-switching

6.2.3 Impact of field upon choices in mood

6.2.4 Impact of field upon choices in modality

6.3 Impact of field upon textual choices

6.3.1 Impact of field upon choices in the Thematic structure

6.3.2 Impact of field upon nominalization

6.4 Impact of tenor upon ideational choices

6.4.1 Impact of tenor upon the selection of the process per se

6.4.2 Impact of tenor upon the choice of participants and circumstances

6.5 Impact of tenor upon textual choices

6.5.1 Impact of tenor upon the employment of nominalization

6.5.2 Impact of tenor upon thematic choices

6.6 Impact of mode upon ideational choices

6.6.1 Impact of spontaneity upon ideational choices

6.6.2 Impact of the semiotic role of text upon ideational choices

6.7 Impact of mode upon interpersonal choices

6.7.1 Impact of spontaneity upon the choice of marked mood structures

6.7.2 Impact of spontaneity upon the choice of partial mood structures

6.8 Summary

Chapter Seven Conclusions

Bibliography

Appendix Ⅰ Specialized discourses selected for analysis

Appendix Ⅱ Non-specialized discourses selected for analysis