In today’s era, English is exceptionally important to our work and life. The rapid development of Artificial Intelligence has driven the development of various industries, and the education industry is no exception. This study aims to construct a Transformer-based model and apply it to several teaching tasks to improve the quality and efficiency of English teaching. The model integrates the functions of vocabulary teaching, reading teaching, and grammar teaching into one and sets up the roles of teachers, students, and online question-answering platforms to provide students with a personalized and high-quality knowledge learning model. After experimental validation, the model has an advantage over similar benchmark models in terms of model generalization ability, training time, and correct rate.