外研版（2019） 必修第三册 Unit 3 The world of science Developing ideas (课件36张PPT+音频)

draft declaration experiment lightning fiction metal attach flash v. 起草，草拟 n. 声明，宣告 n. （科学）实验 n. 闪电 n. 虚构的事，想象的事 n. 金属 v. 系，绑；贴 n. 闪光 conduct scientific entirely gravity account proof procedure v. 传导（热、电） adj. 科学（上）的 adv. 完全地，彻底地 n. 重力，引力 n. 记述，描述 n. 证明，证据 n. 程序，步骤，手续 * Unit 3 The world of science P4 Developing ideas Before reading Benjamin Franklin Benjamin Franklin (1706-1790) was one of the Founding Fathers of the United States and helped draft the Declaration of Independence. Apart from being a successful statesman, he was also well known as a leading American author, printer and publisher, successful diplomat, creative scientist and inventor. What do you know about him? Who is he? As a scientist, he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity. As an inventor, he was known for the lightning rod, bifocals(双光眼镜), and the Franklin stove, among other inventions. He founded many civic organizations, including the Library Company, Philadelphia's first fire department and the University of Pennsylvania. Read the short introduction to Benjamin Franklin. Game Time! Facts Fiction VS * 1. An egg can bear at least 10