Unit 8 Natural Disasters 我来学习 Unit 8 Natural Disasters Unit 7 Seasons 我来学习 Unit 7 Seasons Unit 6 Birdwatching 我来学习 Unit 6 Birdwatching Unit 5 Wild animals 我来学习 Unit 5 Wild animals Unit 4 Do it yourself 我来学习 Unit 4 Do it yourself Unit 3 A day out 我来学习 Unit 3 A day out Unit 2 School life 我来学习 Unit 2 School life Unit 1 Friends 我来学习 Unit 1 Friends