ContentsAbstract...................................................................................................................I摘 要...................................................................................................................IIIntroduction............................................................................................................11 Overview of Context Theory...............................................................................31.1 Definition of Context Theory.......................................................................31.2 Classifications of Context Theory................................................................41.3 Principles of Context Theory in Vocabulary Teaching................................52 Existing Problems and Causes in English Vocabulary Teaching in Senior High School.....................................................................................................................92.1 Problems.......................................................................................................92.2 Causes.........................................................................................................103 Application of Context-based Vocabulary Teaching in Senior High School....133.1 Application of Context Theory in Vocabulary Presenting.........................133.2 Application of Context Theory in Vocabulary Consolidation...................20Conclusion............................................................................................................29Bibliography.........................................................................................................31Acknowledgments................................................................................................33AbstractVocabulary is the basis of learning language. Only by mastering a large number of vocabularies and being pr...