Monday, 23 September 2013

Agnate Variants Manifesting Expansion: Textual Differences

Thematic Status Of Expansion: Cohesively & Tactically Related Clauses

Halliday & Matthiessen (2004: 601):
While a conjunction group with a structural conjunction such as so or because as Head is obligatorily thematic, there is a choice for conjunction groups with a cohesive conjunction such as consequently as Head.

Thematic Status Of Expansion: Hypotactic Nexus

Halliday & Matthiessen (2004: 602):
In a hypotactic nexus, there is a further textual contrast that is not open to cohesive sequences and paratactic nexuses: the dependent b clause […] may be either thematic or rhematic within the clause nexus.

Thematic Status Of Expansion: Simple Clause

Halliday & Matthiessen (2004: 602):
When the domain of manifestation of expansion is a simple clause, the potential textual status of the manifestation […] depends on how it is manifested — (1) as minor Process within a prepositional phrase serving as a circumstance […], (2) as Process, or (3) as Thing within a nominal group serving as a participant in a circumstantial relational clause.

Thematic Status Of Expansion: Minor Process Within A Prepositional Phrase Serving As A Circumstance

Halliday & Matthiessen (2004: 602):
When it is manifested within a circumstance of Cause [eg], the cause may be given the status of either Theme or Rheme…

Thematic Status Of Expansion: Process

Halliday & Matthiessen (2004: 602):
When the causal [eg] relation is manifested as Process (either in a hypotactic verbal group complex in a clause of any process type, or as the nuclear process in a circumstantial relational clause), its textual status will most likely be rhematic.  More specifically, it is likely to be (part of) the transition between Theme and New.

Thematic Status Of Expansion: Thing Within A Nominal Group Serving As A Participant In A Circumstantial Relational Clause

Halliday & Matthiessen (2004: 602):
When the cause [eg] is manifested as Thing in a nominal group serving as a participant, it will have the thematic status assigned to that nominal group as a whole — either thematic or rhematic.  But in addition, it will be within the domain of operation of another textual system — the system of reference.  This means that it is given textual status as a discourse referent — either recoverable (identifiable) or non-recoverable (non-identifiable), and that it can be tracked in the development of the discourse.