SectionⅣGrammar——名词性从句的虚拟语气和地点、条件、让步状语从句...

SectionⅤWriting——介绍文化遗产...

SectionⅢIntegratingSkills&CulturalCorner...

SectionⅡIntroduction&ReadingandVocabulary—LanguagePoints...

SectionⅠIntroduction&ReadingandVocabulary—Comprehending...