Unit1Animals
Unit2Languages
Unit3CommonPeople
Unit4CountriesandCultures
Unit5Entertainment
Unit6FamousPeople
Unit7FestivalsandHolidays
Unit8Food
Unit9Friends
Unit10InterestingStories
Unit11Inter
Unit12Music
Unit13SchoolLife
Unit14SignsandAdvertisements
Unit15AmazingThings
Unit16Disasters
Unit17Environment
Unit18ExplorationsandAdventures
Unit19FantasyTales
Unit20Future
Unit21Health
Unit22InnerWorld
Unit23Inventions
Unit24LifeAttitudes
Unit25WorldTravel
Unit26Mysteries
Unit27Plants
Unit28Space
参考答案