2021九年级英语全册 Unit 6 When was it invented单元词句梳理Section B (1a-1e)课件（新版）人教新目标版.ppt

Unit 6When was it invented?单元词句梳理Section B（1a-1e）必背单词 1.sour adj.酸的；有酸味的2.customer n.顾客；客户必背短语 3._错误地4._最后by mistakein the end 必背句子 5.The customer said they were not salty enough.顾客说它们不够咸。6.George wanted to make the customer happy.乔治想让顾客满意。