新目标 九年级 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 Unit 9 When was it invented? Section B Period 1 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 crispy and salty Describe how food tastes. 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 sour 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 sweet 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 sweet 【最新】九年级英语 Unit9Section B 2课件 人教新目标版 课件 Listening (2a, 2b: P71) 1.The potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes werent thin e
