As for the students, they have learned English for several years, so they have accumulated some pronunciation knowledge, but they may be lacking in the differences of some similar sound, and they sometimes can’t distinguish the sound by themself. So it is very important for the teacher to lead them to the rules and let them to find the rules, which can both help them to improve the ability study on their own and master the knowledge the same time.In this way, students can learn pronunciation well.