新概念英语第二册53课PPT课件.ppt

Language points At last firemen have put out a big forest fire in California. at last 最后，终于，过程很艰难。 他们终于翻过了这座大山。 At last they climbed over the mountain． California=Golden State 黄金州 put out 扑灭，熄灭，关掉 请把灯关掉。 Please put the light out. make a fire 生火 start a fire 引起火灾 Since then, they have been trying to find out how the fire began. since then 从那时起，到现在为止 find out （经过研究、努力等）找出，发现，查出…… 我会试着查出昨天救了我的人的名字。 I’ll try and find out the name of the person who saved my life yesterday. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. cigarette ends 烟头 throw away 扔掉，丢弃 throw about 随处扔 throw at 扔向（有目标性） throw to 扔向（无目标性） They were also quite sure that a cigarette end did not start the fire. be sure that 对……很有把握； quite sure 相当的把握性 rather adv. 相当 fairly adv. 相当, 公正地, 诚实地 quite(＝completely)－rather－fairly 程度一个比一个轻 quite a few 颇有几个(相当多的) start a fire＝cause a fire start vt. 使……发生，引起 This morning, however, a firemen accidentally discovered the cause. However与but区别： However要接逗号，再加句子。 But直接与句子相连。 accidentally =by chance 偶然地 discover 偶然发现（某个已经存在的东西） Invent 发明（以前没有的东西） 我不知道谁发现的美洲。 I don’t know who discovered America. 你知道起火原因吗？ Do you know the cause of the fire? He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. notice 注意别人没注意的东西 the remains表示“尸体，残骸”，必须用复数形式 村民们很惊奇地看到在湖的旁边有一架飞机的残骸。 The villagers were surprised to see the remains of an aeroplane near the lake. wind vt. 1)vt. 缠绕，卷在……上（常与around/round连用） 你介意我把这段电线缠在树上吗？ Do you mind if I wind this piece of wire round the tree? 2) vt. 蜿蜒，盘旋 一条小径沿著山谷蜿蜒而上。 A path wound up the valley. wind one‘s way 蜿蜒、迂回而行 他们在狭窄的山谷中迂回前进 They wound their way through the narrow valley. 3）转动（把手等），拧紧 wind up ones watch 上紧某人手表的发条 把 (车子的) 窗子摇下 wind down a window The explanation was simple but very unusual. A bird had snatched up the snake from the ground and