Data Analysis of College English Speculative Reading Teaching Based on Multimodal Teaching Theory in a Complex Cross-Cultural Environment

With the continuous rise of my country's international status, the cultivation of students' cross-cultural thinking ability has become an important goal of college English teaching. Since the twentieth century, theories about critical thinking ability have been abundant, and how to improve students' critical thinking ability is also a hotspot of reform. In foreign countries, there are rich teaching models, but in China, it is still a major problem to be solved to cultivate students' speculative ability through specific teaching methods. How teachers' classroom teaching is related to the cultivation of speculative ability. In addition to having direct application significance for teachers to realize the cultivation of speculative ability in routine teaching, the research on these issues is conducive to opening the “black box” of classroom instruction. The most crucial tasks in teaching speculative reading and cross-cultural education in today's college English curriculum are the only means of enhancing students' critical thinking and cross-cultural communication skills. This paper analyses, researches, and applies the diagnostic evaluation model using data gathered during system usage. In order to enhance the diagnostic evaluation function of the college English diagnostic practice system and the associated test paper generation algorithm, the author then designs and implements two test recommendation algorithms in accordance with the diagnostic evaluation model.