Contents

Unit 15 Healthy eating

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 16 Fire!

Part 1 Language Points

Part 2 Synchronons Test

Part 3 Explanation and Key

Unit 17　Nature

Part 1　Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 18 The necklae

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 19 Jobs

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 20 Mainly revision

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 21 Karl Marx

Part 1 Language Points

Part 2 Synnchronous Test

Part 3 Explanatior and Key

Unit 22 Britain and Ireland

Part 1 Language Foints

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 23 　Rescuing the temple

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 24 The science of farming

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 25 At the conference

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key

Unit 26 Mainly revision

Part 1 Language Points

Part 2 Synchronous Test

Part 3 Explanation and Key