Assistant Professor of TEFL, Department of English, Islamic Azad University, Maragheh Branch, Maragheh, Iran.
In light of a large number of admirable attempts which look at scientific discourse from social, dialogic and interpersonal points of view, the propositions which consider scientific discourse as an interactive endeavor are now well-established. By the force of our social constructivist gyrations, we have developed glimpses of a social, cultural and historical dimension in which the discourse of science operates. These glimpses indicate us how much the discourse of science is part of complex webs of human’s social interaction. Recognizing this social, cultural and historical nature, the present paper attempts to highlight the heterogeneity and hybridity of scientific discourse and indicate a number of ways scientific discourse is influenced by non-scientific discourses. Recognition of this hybridity helps the author develop a preliminary framework based on the concept of vertical intertextuality and reveal how modern scientific discourses borrow generic, stylistic and rhetorical conventions of non-scientific discourses. The paper is concluded with some of the implications of the developed perspective for ESP pedagogy and suggesting a number of genre-related, style-related and register-related pedagogic tasks.