An empirical study of the speech act of definition in science lectures found that definitions signposted the logical/discourse structure of the lecture, helped to maintain comprehension as discourse progressed, and were often clustered together in discourse. (14 references) (Author/CB)

Presents a range of insights that can be gained for English for Academic Purposes (EAP) listening comprehension pedagogy from the analysis of an authentic lecture. Notes that the salient features identified in the lecture are absent from academic listening textbooks surveyed and argues that EAP listening instructors need to supplement their texts…