Abstract
Since 1976, especially when Halliday and Hasan published Cohesion in English,
linguists at home and aboard have done many studies on the textual coherence in all-
round way from perspectives of semantics, pragmatics and cognition. As a result,
fruitful achievements on textual coherence have been obtained; the appearance of
thematic structure and thematic progression has opened a new field for language
study,especially for discourse analysis and textual coherence. Theme-rheme theory
and thematic progression have also drawn more attention among linguistics in China.
Some language educators have tried to apply thematic structure and thematic
progression patterns to foreign language teaching; and some of them have already
made preliminary achievements in discourse analysis and reading comprehension.
Based on these achievements, some linguists have made research on thematic
progression and textual coherence. They assume that the teaching of thematic
progression might exert positive influence on improving the coherent degree of
college students’ English writings. However, up to now, most studies are just staying
at the theoretic level; few have come to put it into practice. Also as far as the present
practice is concerned, the introduction of experimental methods is too general to guide
the teaching practice; and the experimental methods are not scientific enough so that
the result would lack reliability to some extent.
Studies on theme and rheme were sparked off from the concept of theme and
rheme proposed by Mathesius in the year of 1939. Since then, many linguists,
particularly those from the Prague School, have done many studies in such a field. In
1970, Danes,a Czechoslovak linguist among them made analysis of the concept of
coherence from the perspective of thematic structure and thematic progression.
Thematic structure theory studies a text as a unit of transferring information. It
doesn’t focus on these sentences but on those patterns and principles among these
sentences. Therefore, it can be introduced in English learning and teaching. Since
English writing is one of the most important skills in English learning, which can well
evaluate a student’s English level. Students who have no idea about theme and rheme
just write what they have thought and imagined in the process of English writing. As a
result, abundant passages and paragraphs appear unnatural and loose. It is suggested
that in our teaching of English writing, such a research product should be adopted and
new thinking approaches should be introduced. We should develop the connotation