Reviewing literature reveals that identifying generic structure of research articles (RAs) in different fields of study, especially ESP, has received much attention. The major purpose behind such trends of research has been raising researchers' awareness of the common conventions in writing RAs. Along with this universal trend, a lot of genre…

The Appraisal Theory includes three subsystems of evaluation; Attitude, Engagement, and Graduation. This study focuses on Graduation subsystem which is used by writers to amplify or diminish the scope of these two subsystems. It consists of Focus and Force options. Focus expressions are usually non-gradable they tend to sharpen or soften the…