Identification of the central unit of argumentative texts in the context of examinations
Abstract
This study aims to investigate criteria for the identification of the central unit of argumentative texts in the context of university entrance examinations. The results of a previous study on argumentative answers produced by entrance examinations candidates are compared with the results obtained from the application of the same criteria to a corpus formed by argumentative essays produced by Brazilian National High School Exam (Exame Nacional do Ensino Médio - Enem) candidates. The theoretical and methodological apparatus used was the Rhetorical Structure Theory, a descriptive theory that studies textual organization through implicit relations established between the parts of the text. Unlike argumentative answers, in which the central unit appears at the beginning of most texts, the most common position of the central unit in argumentative essays is between 20% and 30% of the length of the text. This organizational difference is due to the fact that, in argumentative answers, the text producer must start the text answering the question, whereas in argumentative essays, creating a background with relevant information is necessary to situate the reader with respect to the theme of the text. Another important feature in the search for a pattern is the frequency of certain words used in the central units. Nouns and adjectives used in the question show high frequency, since candidates tend to use these words in order to ensure that they meet the theme requested. The more subjective character of the answer in the argumentative answer genre favors the use of evidential verbs expressing propositional attitude (“believe” and “think”), acting as the matrix of the sentence in which the answer is given. In argumentative essays, the point of view is more objective, which does not favor the use of such verbs.
Keywords: central unit, argumentative essays, argumentative answers.
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