The task of analyzing social trends faced by ideological and political courses in universities has shifted from a single perspective response to evidence identification, value judgment, and expression transformation in complex discourse fields. This article takes the “two combinations” as the methodological mainline, focusing on the classroom transformation relationship between the basic principles of Marxism, China’s specific reality, and excellent traditional Chinese culture, and constructs a social trend analysis model of “direction anchoring, reality verification, cultural translation, and feedback generation”. The study used 6 natural classes from an applied undergraduate university as observation samples, and compiled 236 pre – and post test paired questionnaires, 708 student task texts, 536 classroom questions, and 324 case analysis records. The teaching research corpus was formed by combining public policy texts, textbook units, and typical online discourse materials. The outcome indicated that the experiment group which utilized the “two combinations” coupling route had better performance than the traditional teaching group and the ordinary case discussion group on the aspects of accuracy for recognizing social tendencies, proof drawing, text conversion and value identification. The overall distinguishing score went up from 58.6 marks to 82.5 marks, therefore it has a rising of 23.9 marks. Research indicates that “two combinations” can put theoretical viewpoints, practical explanations and cultural resources into operable classroom methods, therefore promoting the relevance, explanation ability and education effect of ideological and political courses in the aspect of differentiating social trends. The merit of this approach lies in the transformation of abstract doctrines into annotatable text collections, performable assignments, and re-inspectable assessments, which enables teachers that they find the origins of students’ puzzles in complicated internet discussions, and based on this, complete theoretical explanations, factual verification, and expression revisions.
