《When was it invented?》PPT課件22
Section A Period One
It was made by Bell at first .貝爾（人名）
It used to be like this
It is used for watching programs.(節(jié)目）[ˈprəʊgræm]
It was made of steel and iron [ˈaɪən] 鐵
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 現(xiàn)代發(fā)明
be invented in 在某年、某地發(fā)明
need to 需要做某事
take a history class 上歷史課
couldn’t afford one 買不起
in those days 在過去
personal computers 個人電腦
關(guān)鍵詞：《When was it invented?》教學(xué)課件，人教新目標(biāo)版九年級全一冊英語PPT課件下載，九年級英語幻燈片課件下載，《When was it invented?》PPT課件下載，.PPT格式；
