In the traditional English teaching practice

the teaching mode of teachers’ concentrated teaching and students’ passive learning has been popular for a long time. The advantage of traditional teaching mode lies in its complete knowledge system and thorough explanation

which is beneficial for students to receive rich knowledge in a limited time and to process

comb and digest it according to their own learning ability and learning needs. However

in the traditional teaching mode

learners are deeply limited by teaching time and space

and the feasibility of teaching students in accordance with their aptitude is difficult to accomplish. With the development of the Internet and the popularity of various mobile learning terminals

a blended teaching mode

which combines teachers’ traditional teaching advantages with students’ autonomous learning on the mobile internet platform

came into being. The blended teaching mode optimizes the combination of diversified teaching strategies and methods

and plays an important role in college teaching

especially in the teaching of English audio-visual courses.