出版说明
本书使用说明
Unit1InventionsandInventors
Lesson1TheZipper
Lesson2ThePostageStamp
Lesson3PencilsandPens
Lesson4TheUmbrella
Lesson5TheMetricSystem
WordStudy
ExtensionActivities
VideoHighlights:CNNVideo,AnInternationalStamp-MakingCompany
ActivityPage
DictionaryPage:FingdingAntonyms
Unit2Sports
Lesson1ThaiBoxing
Lesson2SumoWrestling
Lesson3TarahumaraFootRaces
Lesson4OlympicSports
Lesson5Greatathletes
WordStudy
ExtensionActivities
VideoHighlights:CNNVideo,Scrabble-MoreThanaCame
ActivityPage
DictionaryPage:StressandPronunciation
Unit3Food
Lesson1ThePufferFish
Lesson2FoodsfromAroundtheWorld
Lesson3Chocolate
Lesson4TheBlueRevolution
Lesson5Twenty-OneDaysWithoutFood
……
Unit4Mysteries
Unit5Business
UnitQuiz
Vocabulary
SkillsIndex
IrregularVerbs
VideoTranscripts