简介: 课件33张PPT。Unit 6 When was it invented?Section A Grammar Focus-4c九年级(全)n.冰箱 /frid?/ adj. 低的;矮的 /l?u/ pron. 某人 n. 重要人/'s?mb?di/ v.翻译 /tr?ns'leit/ v.锁上;锁住 n.锁 /l?k/, /la:k/ v. 发出铃声;打电话 /ri?/ n.地震 /'?:(r) θkweik/fr...