Unit1 生活知识
1 Buy Things at a Supermarket
2 At the Zoo
3 Watching TV
4 That's a Problem
5 Books On “How to…”
Unit2 科学知识
1 Air
2 It's a Shadow
3 Light and Shadow
4 Trains
5 Man's Brain
Unit3 生物知识
1 Kangaroos
2 Strong Ants
3 A Crow Drinks Water
4 Owls
5 Can Animals Be Made to Work for Us?
Unit4 气候知识
1 The Sun and the Moon
2 Four Seasons
3 The Weather in England
4 The Worst Storm
5 Water
Unit5 旅游知识
1 The Leaning Tower of Pisa
2 Language Problems in a Foreign Country
3 Get Ready for Hiking
4 Welcome to Guilin
5 A Great Vacation
Unit6 语言知识
1 A French Student
2 Guess a New Word
3 How to Learn Chinese in US Schools?
4 What's a White Lie?
5 How to Make Your Vocabulary Bigger?
Unit7 节日风俗
1 The Halloween
2 Christmas Eve
3 The Spring Festival
4 Christmas Day
5 Lucky Numbers
Unit8 地理知识
1 The Sea
2 The USA
3 Australia
4 The North of Canada
答案
