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
封面/前言/目录 Unit 1 Winter activities Unit 2 Helping each other Unit 3 Seeing a doctor Unit 4 Mother"s Day Review 1 Unit 5 Occupation Unit 6 Dream job Unit 7 A visit to a middle school Unit 8 Farewell Review 2 Story time Vocabulary
