Writing is one of the four basic skills students are required to master in foreign language studies,and an important way of language output.However,the teaching of English writing in college is deficient.In the English writings of college students,the lack of structural cohesion and semantic coherence is common.The theme-rheme theory is about discourse cohesion.Proper use of themes and thematic progession patterns qualifies cohesion and clear thoughts of a discourse and the variety of sentence patterns.Therefore,the theme-rheme theory plays an important role in writing teaching.
