《When was it invented?》PPT课件22
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《When was it invented?》PPT课件22
Section A Period One
It was made by Bell at first .贝尔（人名）
It used to be like this
It 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 invented
in eighteen seventy-six(1876).
Picture a: Cars were invented in
eighteen eighty-five(1885).
Picture c: The TV was invented around
nineteen twenty-seven(1927).
Picture b: The personal computers
were invented in nineteen seventy-six(1976).
... ... ...
Summaries
modern 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
《When was it invented?》SectionD MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
《When was it invented?》SectionC MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
《When was it invented?》SectionB MP3音频课件 文件内包含本课教学使用的MP3音频文件，非常适用于本课教学。
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