Unit 6 When was it invented?第1 Section A 1a～2d一、听录音或根据音标朗读词汇表中P.41～P.42：heel～mention共12个词。并在课文中划出来。 二、根据汉语写出下列短语，并在课文中划出来。1被发明6在黑暗中2在1876年7改变鞋子的风格3有特殊鞋跟的鞋子8乐意效劳4由……发明9在日生活中5用来做……10不同类型发明的先驱者们自主探究I think the TV was invented before the car. 我想电视是在汽车之前被发明的。【解读】句中invent 作动词，意为“发明”，指发明以前从来未存在过的东西。was invented 是一般过去时的被动语态，结构为was/were + 及物动词的过去分词。【举例】（1）Edison invented the light bulb in 1879. 爱迪生在1879年发明了电灯。（2）The light bulb was invented by Edison in 1879. 电灯是在1879年被爱迪生发明的。（3）Such books are written for children. 这类书是为儿童写的。 【练习】根据中文完成句子。（1）蔡伦发明了造纸术。Cai Lun the making. （2）计算器是在1971年被发明。The calculator 1971. （3）电话是由贝尔发明的。The telephone Bell.2. When was the telephone invented? 电话是什么时候被发明的？ Who was it invented by? 它是由谁发明的？【解读】这两个是一般过去时的被动语态的特殊疑问句，其结构是“疑问词+be动词+主语+动词的过去分词+其他？”【举例】（1）—When were the plants watered? 这些植物什么时候被浇水的？ —They were watered yesterday morning. 他们是昨天早上被浇水的。（2）—Who were they watered by? 他们是由谁浇水的？—They were watered by the students from Class 3.他们是由三班的学生浇水的。【练习】单项选择 （1）—Who invented the television? —It was |
