Unit 1 Section 1 Listening Section 2 speaking Section 3 comprehensive reading introduction related knowledge grammar supplement:days on my past supplement:days on my past Section 4 Writing Unit 2 Section 1 Listening Section 2 speaking Section 3 comprehensive reading Hawaii related knowledge grammar supplement Section 4 Writing Unit 3 Section 1 Listening Section 2 speaking Section 3 comprehensive reading shirley temple related knowledge grammar supplement:child lives what he learns Section 4 Writing Unit 4 Section 1 Listening Section 2 speaking Section 3 comprehensive reading Health and fitness related knowledge grammar supplement:how to makr friends ection 4 Writing Unit 5 Section 1 Listening Section 2 speaking Section 3 comprehensive reading fisherman and his wife related knowledge grammar supplement:the little match-girl ection 4 Writing Unit 6 Section 1 Listening Section 2 speaking Section 3 comprehensive reading children`s day related knowledge grammar supplement:the history of santa claus ection 4 Writing Unit 7 Section 1 Listening Section 2 speaking Section 3 comprehensive reading World water shortage related knowledge grammar supplement:greatest extinction since the end of the age of dinosaurs ection 4 Writing Unit 8 Unit 9 Unit 10 Unit 11 Unit 12 Unit 13 Unit 14 Unit 15 Unit 16 Unit 17 Unit 18 Unit 19 Unit 20 Unit 21 Unit 22 Unit 23