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Unit 1 We love nature
　　Lesson 1 Planting trees
　　Lesson 2 Talking about squirrels
　　Lesson 3 A book about animals
　　Self-assessment
Unit 2 Four seasons
　　Lesson 1 Seasons and clothes
　　Lesson 2 Seasons and months
　　Lesson 3 Seasons and culture
　　Self-assessment
Unit 3 A birthday party
　　Lesson 1 Coming to my party
　　Lesson 2 Buying a present
　　Lesson 3 Having a birthday party
　　Self-assessment