Unit 6 When was it invented?Section A 1 (1a-2d)一、教学目标: 1. 语言知识目标:1) 能掌握以下单词: heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention 能掌握以下句型:① —When was the telephone invented? —I think it was invented in 1876. ② —...