Unit 1 The summer holidays

Unit 2 In the lab

Unit 3 American English

Unit 4 Travel

Unit 5 Why do you do that?

Unit 6 A new factory

Unit 7 Earthquakes

Unit 8 Mainly revision

Unit 9 Computers

Unit 10 Sports

Unit 11 Country music

Unit 12 English programmes

Unit 13 Abraham Lincoln

Unit 14 Mainly revision

Unit 15 Healthy eating

Unit 16 Fire

Unit 17 Nature

Unit 18 The necklace

Unit 19 Jobs

Unit 20 Mainly revision

Unit 21 Karl Marx

Unit 22 Britain and Ireland

Unit 23 Rescuing the temple

Unit 24 The science of faming

Unit 25 At the conference

Unit 26 Mainly revision