in a complex society there are many jobs which must be done to keep the society running smoothly.
there must be many kinds of factory workers, salesmen, mechanics, policemen, firemen, miners, secretaries, bookkeepers, bus drivers and many other workers.
all these people are important to the comfort and safety of our everyday lives.
2017届高三一轮复习课件（广东版）必修4 Unit4 Body language
2017届高三一轮复习课件（广东版）选修6 Unit3 A healthy life
2017届高三一轮复习课件（广东版）必修2 Unit5 Music
2017届高三英语一轮复习课件（安徽用）M3_Unit 7 The Sea（2）
2017届高三一轮复习课件（广东版）必修5 Unit3 Life in the future
2017届高三一轮复习课件（广东版）必修3 Unit1 Festivals around the world
2017届高三英语一轮复习课件（安徽用）M8_Unit 22 Environmental Protection
2017届高三一轮复习课件（广东版）必修1 Unit1 Friendship
2017届高三一轮复习课件（广东版）必修1 Unit5 Nelson Mandela-a modern hero
2017届高三英语一轮复习课件（安徽用）M6_Unit 17 Laughter
2017届高考英语一轮复习课件：Book3 Unit 4（人教版必修3）
2017届高三英语一轮复习课件（安徽用）M3_Unit 8 Adventure（1）
2017届高三英语一轮复习课件（安徽用）M1_Unit 3 Celebration
2017届高三英语一轮复习课件（安徽用）M3_Unit 8 Adventure（2）
2017届高三英语一轮复习课件（安徽用）M8_Unit 24 Society
2017届高三一轮复习课件（广东版）必修1 Unit2 English around the world
2017届高三英语一轮复习课件（安徽用）M3_Unit 7 The Sea（1）
2017届高三英语一轮复习课件（安徽用）M8_Unit 23 Conflict
2017届高三英语一轮复习课件（安徽用）M6_Unit 16 Stories
2017届高三英语一轮复习课件（安徽用）M7_Unit 19 Language
2017届高三英语一轮复习课件（安徽用）M7_Unit 20 New Frontiers
2017届高三英语一轮复习课件（安徽用）考点14 It的用法
2017届高考英语一轮复习课件：Book3 Unit 3 （人教版必修3）
2017届高三英语一轮复习课件（安徽用）M2_Unit 5 Rhythm
2017届高三英语一轮复习课件（安徽用）M4_Unit 11 The Media
2017届高三一轮复习课件（广东版）必修1 Unit3 Travel journal
2017届高三英语一轮复习课件（安徽用）M4_Unit 10 Money（1）
2017届高三一轮复习课件（广东版）必修2 Unit1 Culture relics
2017届高三一轮复习课件（广东版）必修5 Unit4 Making the news
2017届高三一轮复习课件（广东版）必修3 Unit3 The Million Pound Bank Note