关注公众号，免费领取中小学各科电子课本、学习资料。
点击弹出公众号二维码
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
