Grammar Teaching in College English Green Education from Perspective of Cross-Cultural Learning

Grammar lessons also play an important role in English teaching. Under the influence of the new curriculum reform, the traditional teacher-led grammar teaching model has been unable to adapt to the development of the times, nor can it meet the needs of students' language communication, because the traditional grammar teaching focuses on the cultivation of students' comprehensive application ability, rather than on the narration of the cultural connotation of grammar itself. Therefore, this paper analyzed the current situation of grammar teaching under cross-culture through genetic algorithm, and optimized and reformed the problems in grammar teaching according to green education, so as to promote the development of grammar teaching and improve the quality of grammar teaching. The results showed that both the connection weight value and fitness of grammar teaching grow over time. The mean connection weight value was 1.23, the seventh day was 0.22 higher than the first day, the fitness was 0.91, and the seventh day was 0.14 higher than the first day. The learning efficiency and learning interest of students under the green education grammar teaching were much higher than those of the traditional grammar teaching, and the learning efficiency was 9% higher than the traditional one, and the learning interest was 13% higher than that of the traditional one.