单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Unit 3Inventors and inventions warming up readingLearning Objectives: to be able to tell the difference between discoveries and inventions know the stages

单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Inventors and inventionsUnit 3 module 8 thepass paper The Four Great Inventions Printing Gunpowder Extension of Foot Thomas Edison invented th

Inventors and Inventions1. ____ isnt Thomas Edisons bulbRecord playerRocketA printing gunpowder