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 One My School Lesson One Lesson Two Review One Unit Two My Classes Lesson Three Lesson Four Review Two Unit Three In the Library Lesson Five Lesson Six Review Three Unit Four Weekdays Lesson Seven Lesson Eight Review Four Unit Five The Weekend Lesson Nine Lesson Ten Review Five Unit Six My Daily Routine Lesson Eleven Lesson Twelve Review Six Words and Expressions in Each Unit Word List
