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.