新概念二册 Lesson 53课课件.ppt

【New words and expressions】 hot adj. 带电的，充电的 fireman n. 消防队员 cause v. 引起； n. 原因 examine v. 检查 accidentally adv. 意外地，偶然地 remains n. 尸体，残骸 wire n. 电线 volt n. 伏特（电压单位） power line n. 电力线 solve v. 解决 mystery n. 谜（无法接受地, 解释不了的） snatch v. 抓住 spark n. 电火花 ★hot adj. 带电的, 充电的 hot adj. 热的；辣的； hot dog 热狗 hot line 热线； hot topic 热门话题 It sells like a hot cake. ★cause v. n. 引起；导致；原因 cause sth. 引起…… Pride causes failure. 骄傲使人失败 cause sb. to do sth. 引起某人做某事, 导致某人做某事 ★accidentally adv. 意外地, 偶然地 accident－accidental－accidentally accident n. 事故 ★remains n. 尸体, 残骸 remains指dead body ★ wire n. 金属线，电线 telephone wires 电话线 electric wires 电线 wireless adj. 无线的 wireless telegraphy 无线电报 ★ power 1）电力，动力 electric power 电力 water power 水力 2）力,能力 （自然的体力、智力） His power is failing. 3）权力,支配力,势力 come into power 掌权 Comprehension questions 1 Where was there a big forest fire? In California. 2 Have firemen put it out? Yes, they have. 3 What have they been trying to find out since then? How the fire began. 4 What are forest fires often caused by? Broken glass or cigarette ends. 5. What caused the fire this time? 1、Hot snake hot snake 触电的蛇 2、At last firemen have put out a big forest fire in California. at last 最后，终于 put out扑灭，熄灭， 3、Since then, they have been trying to find out how the fire began. since then, 从那时起 find out 找出，查出…… 4、Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. broken glass 碎玻璃片 cigarette ends 烟头 throw away 扔掉 5、They were also quite sure that a cigarette end did not start the fire. be sure that +句子 确定，确信； start a fire=cause a fire 引起火灾 6、This morning, however, a firemen accidentally discovered the cause. accidentally =by chance 偶然地 7、He noticed