Our physics professor was struggling to draw the class into discussion of Archimede's principle of water displacement. He told us that Archimede noticed that when he got into a pool at the public bathhouse, the water rose spilling over the edge. Excited at his discovery, he ran down the street yelling, "Eureka, eureka!" The instructor asked if anyone knew what that meant. One student stood up and answered, "I'm naked ! I'm naked!" Notes: (1) draw the class into discussion引导全班讨论 (2) principle n.原理 (3) displacement n. 排水量 (4) spill v.（指液体或粉末）溢出；洒出 (5) yell v.叫；喊 Exercises: 根据短文回答下列问题： ① What subject did the prefer teach? ②Z How was he trying to draw the class into discussion? ③ Where was Archimede having a bath? ④ What did he notice when Archimede was having a bath? ⑤ What does "eureka" mean? 109.奇猜异想 我们的物理教授千方百计引导我们讨论阿基米德的排水原理。他告诉我们阿基米德去公共浴池洗澡，他进入池子，发现水涨高了，溢出池沿。他对这一发现十分激动，跑到街上高叫：“Eureka，Eureka！”教授问我们谁知道他喊的是什么意思。 一个学生站起来答道：“我光屁股啦，我光屁股啦！” 练习参考答案： ① Physics. ② He told a story about Achimede. ③ At the public bathhouse. ④ He noticed that when he got into the pool, the water rose spilling over the edge. ⑤ It means "I have found it"