... describing and analyzing grammatical and lexical cohesive devices in the course book of EC for second year students in Faculty of Chemistry at HNUE The findings are expected to be applied to the teaching ... the teaching and learning of EC SCOPE OF THE STUDY Within the framework of a minor M .A thesis, the study just mainly focuses on grammatical and lexical cohesive devices, their frequency of occurrence, ... contains six units, from unit to unit We take six reading texts from these six units as written discourses of EC from which we analyze grammatical and lexical cohesive devices AIMS OF THE STUDY The...