In recent years, more and more questions have been raised about the idea that a sentence alone can fully analyze the semantics without considering the context. When we talk about the acceptability of a sentence, we immediately and naturally think of the context in which the sentence can be used correctly. In the current English classroom teaching, teachers follow the traditional teaching procedures too much: first give detailed explanations, and then carry out mechanical exercises. The lack of flexible teaching methods and the creation of contexts affects the improvement of students’ communicative ability. During my long-term learning of English, I have considered the following questions: how to make use of the function of context to make English learning diverse and challenging; how to create a variety of practical forms, such as creating a way to make students interested and able to participate in learning, in order to improve students’ language communication ability. This paper analyzes the current situation of English teaching, expounds the concept and classification of context and language application, summarizes the applied linguistics theory and related theory, and analyzes the context of English linguistics horizon function and application. This study combines context with English learning, and English learning “how to create and use context,” so as to improve students’ communicative competence.