B,Different approaches 1,The natural method (direct method):自然法/直接法 Introduction:The Natural Approach was developed by Tracy Terrell and Stephen Krashen,starting in 1977.It came to have a wide influence in language teaching in the United States and around the world.B，Different approaches • 1，The natural method (direct method):自然法/直接法 • Introduction: The Natural Approach was developed by Tracy Terrell and Stephen Krashen, starting in 1977. It came to have a wide influence in language teaching in the United States and around the world