Closed learning is a very systematic English learning mode. Generally speaking, you will learn from the basics, make up the basic knowledge you didn't master in those years, and then build a knowledge network for you, such as vocabulary, grammar, oral English and listening, and learn from each other in all directions, and finally form a learning network for you. Secondly, closed English learning allows you to let go of all distractions in your life and work. Without these distractions, you can learn English without any distractions. Only in this state of inner peace is it the most ideal state to learn English, because you can concentrate on learning English, and it is often easy to succeed if you concentrate on doing one thing. Finally, learning English in this closed atmosphere is easy to get more study partners and comrades-in-arms, and everyone can learn English together.

The advantages of online courses are to break through space restrictions, save traffic time and learn English at home; However, it can only be taught through words or videos, lacking real communication experience, and there will still be a gap with practical application; There is basically only one-way communication in class, and students lack exercise opportunities and cannot realize real classroom interaction; It is difficult to form a system because of the short class hours. In teaching, it may give students a feeling of browsing; Due to the huge number of students that institutions need to face, it is difficult for teachers to track the learning situation of each student;