新概念二册53课课件(共38张PPT).ppt

forest fire;What may cause the forest on fire? What will be the possible results/effects? What can be done to prevent forest fires?;Causes of forest fire ;a forest fire caused by the drought in Guizhou Province inMarch 5th;Terrible effects of forest fire;preventive measures;preventive measures;A True Story;A bear went out of the zoo to search for his child. Surrounded by so many people , he climbed the electrical pole out of panic(惊慌).;When he reached the top of the pole, he didn’t know what to do.;He decided to get down, but unfortunately, he was killed for touching the wire.;Finally, he fell from the pole and was burned to death.;What will happen when an eagle throws a snake right around an electrical pole and electrical wire ?;【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 电力线 solve vt. 解决 mystery n. 谜（无法接受地, 解释不了的）mysterious adj. snatch v. 抓住 spark n. 电火花;Lesson 53  Hot snake ;Careful reading;1.★hot adj. 带电的, 充电的;热的；新鲜的；棘手的；带电的, 充电的 hot-hot-hot 麻辣烫； hot-wings 辣鸡翅； hot dog 热狗 hot-tempered 火暴(脾气)的 hot line 热线； hot topic 热门话题 a hot cake 畅销, 热销 =best seller 畅销的东西; 2.★fireman n. 消防队员 hydrant n. [?ha?dr?nt]消防栓, 消防龙头 fire extinguisher [?k?st??gw???] 灭火器 （extinguisher n. 熄灭者, 灭火器） extinguish＝put out a big fire 灭火;3. Have been doing;4.★ look for /find/find out find out （经过研究、努力等）找出，发现，查出……（这里find out的宾语是个从句） I’ll try and find out the name of the person who saved my life yesterday. 科学家们尚未发现生命是如何开始的。 Scientists haven’t found out how life began.;5. 【Special Difficulties】 ★cause v. n. 引起；原因 ① v. 引起 cause sth. /be caused by 引起麻烦 Pride causes failure. 骄傲使人失败 The accident is caused by carelessness. 事故由粗心导致 cause sb. to do sth. 导致某人做某事 Illness caused him to lose his temper. (lose one’s temper 发火);② n. 原因，强调事情发生的直接原因(一个) because 因为 reason 理由，其他各种的理由(很多个) ;reason ① n. 理由，原因