Unit 1 Housing Estates and Surroundings Lesson 1 Choosing a Flat Lesson 2 New Housing Esta[eS Lesson 3 Making Our Home Greener Test for Unit l Unit 2 Holidays and FestivaIs Lesson 1 National Holidays Lesson 2 Festivals in China Lesson 3 Christmas Test for Unit 2 Unit 3 Going on-Holiday Lesson 1 Planning for a Holidav Lesson 2 Booking a Package Zour t0 Beijing Lesson 3 Introducing Shanghai