Substitution as a Device of Grammatical Cohesion in English Contexts

The present study set out to investigate the effect of teaching substitution as a kind of grammatical cohesion on the true identification of confusing substitution elements with cohesive or non-cohesive roles in different contexts and also the production of modal, reporting and conditional contexts through clausal substitution acquaintance. to this end, the following procedures were taken. first 120 male and female efl students were selected from iranshahr azad university. having administered the language proficiency test, researchers selected 80 students as intermediate subjects according to their toefl band scores. first, pretests of cohesion identification (substitution) and production of modal, reporting and conditional environments were administered to both control and experimental groups. then, the experimental group was exposed to the teaching of the above-said above-mentioned cohesive device. finally, post-tests of substitution elements’ identification and modal, reporting and conditional contexts’ production through clausal substitution familiarity were administered. the results showed that cohesive device treatment helped students on the true identification of substitution elements. another finding proved that efl students might have no difficulty in learning certain rules or classification of rules and application of their clausal substitution knowledge in creating modal, reporting and conditional contexts. our findings can have implications for the field of language learning and teaching.