Unit4EarthquakesThefirstperiodTheanalysisofteachingmaterials（教材分析）:Vocabularyandsomeimportantsentencepatternsplayanimportant...
TeachingreferenceUnitFourThesecondperiod:TeachingContentsanalysis（教材分析）:1.Somesentencesforthestudentstorecite.2.Theotherhalf...
