第六单元A节(1A-2D)课件(人民教育新目标版)是什么时候发明的

Pair work
Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.
When was the telephone invented?
I think it was invented in 1876.
1.   invent  v. 发明
指经过认识和实践创造出前所未有的事物。
Edison invented the light bulb.
    爱迪生发明了电灯泡。
invention和inventor都是名词, 前者意为“发明”, 后者意为“发明家”。
discover, invent和find都是动词, 它们的词义相近, 但是有区别:
★discover意为“发现”, 指发现某种本来存在,但以前未被发现或未为人所知的事物或现象。
     The lost bike was discovered at the bus stop.
        丢了的自行车发现在公共汽车站那儿。
     Later I discovered that he was so kind.
        后来我发现他如此善良。