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1、第三单元 单元知识结构Topic（话题）interesting events趣事Functions（功能）talk about past events谈论过去tell a story讲故事Structures（语法结构）adverbial clauses with when，while以when，while引导的状语从句questions and statements with past progressive用过去进行时问答Past tense过去时态Target language（语言目标）What were you doing when the UFO arrived?不明飞行物来到时你
2、在做什么?I was sitting in the barbers chair.我正座在理发椅上。The barber was cutting my hair.理发师正在给我理发。While he was buying souvenirs，a girl called the police.在他买纪念品时，一名女子报了警。Vocabulary（基本词汇）past过去的，in front of在前面，bathroom浴室，bedroom卧室，kitchen厨房，barber shop理发店，cut hair理发，alien外星人，flight飞行，surprised惊奇的；jump down跳下来，shout大叫，action行动，run away跑开，anywhere到处，happen发生，in hospital住院，at the doctors在医院，parade游行，lantern灯笼，magical有魔力的，chase追赶；追逐，arrow箭，protect防御，rabbit兔子，gaze凝视
