Recently, the world has witnessed a trend toward internationalization in higher education and increasingly widespread use of English as a medium for instruction (EMI) at the tertiary level of education in non-native English-speaking countries. As a result, academic English speaking and listening skills have become as important as academic English reading and writing skills for non-native English-speaking students. Therefore, although written genres are still the primary focus of research in the field of English for Academic Purposes (EAP), spoken genres have also gained far more research interest in this field. Among the various spoken genres in EAP, lectures have been considered the most prominent format of instructional activity in higher education worldwide (Bamford, 2005; Fortanet, 2004a), hence have attracted a great amount of research attention.
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