English online classes are mainly taught in English, aiming at improving children's practical English ability and enabling them to communicate with others skillfully and express themselves in English. Is this suitable for the fifth-grade children in junior high school who are facing learning pressure? Is the fifth grade English online class effective? The answer to this question is yes, but the specific effect depends on the teaching level of the institution chosen by parents. Generally speaking, English online class has the following advantages for fifth-grade students: First, it can solve pronunciation problems and improve listening; Listening is an important part of traditional examinations in China, but it is difficult for China children to master pronunciation rules and sentence patterns, and listening has become a major item for them. Foreign teachers are used in English online classes, so that children can master the standard pronunciation and improve their listening and speaking skills quickly through actual conversations. For example, the foreign teachers in training institutions are professional and experienced foreign teachers from Britain, the United States and Canada, which can fundamentally guarantee the standard of children's pronunciation and authentic expression. In addition, fluent and authentic spoken English is also the demand of social development. Second, cultivate pure thinking and improve reading and writing ability; Reading and writing are also a major difficulty in children's English test, and the reason for this phenomenon is that children do not have pure English thinking, so it is difficult to skillfully and flexibly use the words, sentence patterns and grammar they have learned, and they just copy them mechanically. Pure and professional foreign teachers from training institutions in Britain, the United States and Canada immerse children in the real context and form pure English thinking through flexible and multi-directional communication, dialogue and reading. Training institutions also have natural spelling classes, reading classes and grammar classes to solve children's learning problems. The basic purpose of English online course is practicality. Through the comprehensive study of listening, speaking, reading and writing, children can firmly master English skills and communicate, study and live more easily. Skilled and authentic practical ability will greatly improve the examination level, so that children can not only calmly cope with the fierce competition in society, but also get high marks and enter the ideal school. Is the fifth grade English online class effective? Long-term study in high-quality professional institutions will certainly have satisfactory results.