四川省宜宾县双龙镇初级中学校九年级英语上册Unit6WhenwasitinventedSectionB1a-1ePeriod4导学案无答案新版人教新目标板

Unit 6 When was it inventedSection B 【学习目标】1.掌握重点单词和短语：crispy, salty, sour, customer, by mistake, in