《When was it invented?》PPT课件22Section A Period OneIt was made by Bell at first .贝尔（人名）It used to be like thisIt is used for watching programs.(节目）[ˈprəʊgræm]It was made of steel and iron [ˈaɪən] 铁Practice the sentences.Picture d: The telephone was inventedin eighteen seventy-six(1876).Picture a: Cars were invented ineighteen eighty-five(1885).Picture c: The TV was invented aroundnineteen twenty-seven(1927).Picture b: The personal computerswere invented in nineteen seventy-six(1976).... ... ...Summariesmodern inventions 现代发明be invented in 在某年、某地发明need to 需要做某事take a history class 上历史课couldn’t afford one 买不起in those days 在过去personal computers 个人电脑关键词：《When was it invented?》教学课件，人教新目标版九年级全一册英语PPT课件下载，九年级英语幻灯片课件下载，《When was it invented?》PPT课件下载，.PPT格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。