Thematic structure
Thematic structure is a term in linguistics. When people talk, there are purposes in three separable parts of utterances, the act of speech, the propositional content and the thematic structure. Because speaking is cooperative, in order that the speaking can be effective in the conversation, speakers have to pay attention to their listeners’ knowledge, state of mind and level of understanding. Speakers can assume that listeners know or do not know what speakers are talking about.