Abstract:Abstract,an integral part of a research article,usually follows the pattern of IMRD and some journals requires the OMRC structure.This article discusses the generic motivation of IMRD and OMRC by tracing their respective origins to the problemsolution pattern and the lab report format based on the analysis of samples taken from English research articles.The analysis indicates that IMRD has evolved from SPRE of the problemsolution pattern,and OMRC is the hybrid of IMRD and the lab report format,with IMRD being widely used in comprehensive academic journals or conferences for its flexibility,and OMRC being much easier for the author and the reader to manipulate due to its specific format.The exploration of IMRD and OMRC generic motivation can improve our cognitive understanding of the generic features of both Chinese and English research articles and facilitate the standardization and internationalization of the abstract of Chinese research articles.