Uma análise da estrutura retórica de um gênero em português: a comunicação em VHF a bordo de navios

Abstract

This study identifies and analyzes the rhetorical structure of VHF communications among ships, based on John Swales model CARS (Create a Research Space)(1990), originally made for the analysis of introductions in research articles ; the sea jargon used in the construction of the transmissions and the communicative purposes underlying them and the most recurrent lexical elements in this oral genre, based on the concepts of Halliday and Hasan (1976, 1989) and Marcuschi (1992, 2002), especially the repetitions found in the texts. The VHF communications describe five types of basic procedures: Exchange, Broadcast, Distress, Urgency and Safety. This study was conducted based on the analysis of thirty seven simulated texts of VHF communications which were translated into Protuguese, using a standardized vocabulary in that language. The texts were taken from course books and manuals used by Deck Officers at the Merchant Marine Academy. Moreover, four interviews were conducted with four professionals specialized in Nautical Sciences in order to confirm some hypothesis on the importance of communication on board ships and the use of the sea jargon. The analysis of the messages shows mandatory and optional elements in the transmissions and suggests that the variations in the structures are primarily lexical. The results also show that each movement possesses its own set of functions that are carried out by lexical and grammatical choices.