书本章节选择 Module 4 Great inventions 124 Module 5 Museums 128 Module 6 save our world 132 Module 7 Australia 136 Module 8 Photos 14 Module 9 Cartoon stories.....144 Module 10 Fitness 148 Module 11 Population 152 Module 12 Summer in LA 156 Appendices Language notes.... 160 Guide to Language use 173 Words and expressions 186 Proper names 193 Vacabulary 196 工 reqular verbs.. 2o3