A B S T R A C T This article examines the thematic structure and progression of an extract of a spontaneous conversation using the inference-boundary model (an amended version of the Hallidayan theme-rheme framework) and the thematic progression framework of Daneš. This article argues that equal attention should be paid to both thematic and rhematic progression. Insofar as rheme carries the body of the message, it would be tremendously helpful for us to gain an understanding of the patterned behaviour of the rhematic element and how theme and rheme together shape the message in the unfolding discourse. The article also examines the different patterns of theme-rheme development in the extract. The boxed, gapped, holistic, and multiple developments, including their variant forms, are presented and discussed.K E Y W O R D S : conversation, inference-boundary model, rheme, thematic progression, theme
A RT I C L E 701Discourse Studies