摘要：The present study aimed to find out the interpersonal theme, its types and its relation to students' level of language proficiency. For this aim, ninety male and female students majoring in English language translation in Abadan Islamic Azad University were selected. They were divided into three groups- elementary, intermediate, and advance students. The three groups also sat for a homogeneity test (Fowler & Coe, 1976). Then three pictorial stories were used for gathering the data from the students. The data were analyzed based on Halliday (1994) models of thematic organization. The result showed small decrease in the use of this theme types moving from elementary to advance students indicating the more factual nature of advance students compositions. The findings of this study are applicable in teaching writing skill.
