Unit 1 How do you study for a test? 1
Unit 2 I used to be afraid of the dark 25
Unit 3 Teenagers should be allowed to choose their own clothes 48
Unit 4 What would you do? 70
Unit 5 It must belong to Carla 93
Units 1～5 自测题 116
Unit 6 I like music that I can dance to 128
Unit 7 Where would you like to visit? 152
Unit 8 I'll help clean up the city parks 177
Unit 9 When was it invented? 202
Unit 10 By the time I got outside,the bus had already left 227
Units 6～10 自测题 250
Unit 11 Could you please tell me where the restrooms are? 263
Unit 12 You're supposed to shake hands 284
Unit 13 Rainy days make me sad 309
Unit 14 Have you packed yet? 332
Unit 15 We're trying to save the manatees! 355
Units 11～15 自测题 377
参考答案解析 390