Part 1 Background Knowledge

Part 2 Language Points

Unit 13 Healthy eating

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 14 Festivals

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Part 1 Background Knowledge

Part 2 Language Points

Unit 15 The necklace

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 16 Scientists at work

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 17 Great women

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 18 New Zealand

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6　Key and Hint

Part 2 Language Points

Part 1 Background Knowledge

Unit 19 Modern agriculture

Part 3 Typical Problems

Part 4　Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 20 Humour

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 21 Body language

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint

Unit 22 A world of fun

Part 1 Background Knowledge

Part 2 Language Points

Part 3 Typical Problems

Part 4 Grammar Items

Part 5 Synchronous Test

Part 6 Key and Hint