Unit 4 When is Easter? Lesson 4 Part B Let’s learn & Look and write学习目标1 、 能 听 、 说 、 读 、 写 twelfth(12th), twentieth(20th), twenty-first(21st), twenty-third(23rd), thirtieth(30th)这五个单词。3、会灵活运用句型 When is Grandpa’s birthday? It’s on October 12th.询问和回答生日的日期...