Lesson 53 hot snakes（课件）新概念英语第二册

53.Hot Snake 触电的蛇 At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the fire- men examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning,however, a fireman accidentally dis-covered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire. New words and expressions hot adj. 带电的，充电的 a hot wire高压电线 热的 麻辣烫： hot-hot-hot 辣鸡翅： hot-wings hot-line :热线 hot topic :热门话题 hot potato :烫手山芋（喻指棘手的问题） hot dog :热狗 ★fireman　n. 消防队员 [mæn] firemen 复数 [men] ★cause　v. 引起； n. 原因 n: What is the cause of failure? v: cause sth.: 引起麻烦 What causes the failure? cause sb to do sth. :导致某人做某事 Illness caused him to lose the game. Because 因为 be cause ★examine　v. 检查 examine sth. examination n. physical examination 身体检查 ★accidentally　adv. 意外地，偶然地 accident : n. 事故 accident-accidental-accidentally I met my favorite singer star accidentally. ★remains　n. 尸体，残骸 dead body corpse [kɔ:ps] remain:遗迹；剩余物 ★wire　n. 电线 electric wire ★volt　n. 伏特（电压单位） ★power line　电力线 ★solve　v. 解决 solve the mystery(迷) solve the problem ★mystery　['mistəri] n. 谜,神秘 ★snatch　v. 抓住 snatch up 夺取，抓取 ★spark　n. 火花 electric spark 电火花 Questions 1.What are forest fires often caused by? 2.What caused the fire? 1.Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. 2.A bird had snatched up the snake