新概念英语第二册53课(40张)(共40张)课件

1、Lesson 53Hot snake单词学习hot fireman cause examine accidentally remains windwire volt power line solve mystery snatch spark adj. 带电的，通电的n. 消防队员v. 引起； n. 原因v. 检查adv. 意外地，偶然地n. 尸体，残骸v. 缠绕n. 电线n. 伏特（电压单位）电力线v. 解决n. 谜v. 抓住n. 电火花hot adj 1）热的，炎热的Strike while the iron is hot. 趁热打铁.hot 炎热的 warm 温暖的 cool 凉爽的 ch

2、illy 寒冷的 cold 寒冷的,严寒的2）调味品辣的辣椒和芥末是辣的.Pepper and mustard are hot. 3）强烈的,激烈的,热烈的.have a hot temper 脾气暴躁a hot potato 棘手或讨厌的事物或情况1.hot adj. 带电的, 充电的adj. 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 temper n. 脾气 hot line 热线；hot topic 热门话题It sells like a hot cake/cakes.

3、表示一个东西的畅销, 热销best seller 畅销的东西hot potato 棘手的问题hot news 最热点的新闻fireman n 消防队员hydrant haidrnt n.消防栓fire extinguisher 灭火器 Extinguish ikstigwiput out 灭火cause 1）V. 引起cause sth : 引起（麻烦）粗心导致事故Carelessness causes accidents. 骄傲使人失败Pride causes failurecause sb to do sth 引起某人做某事, 导致某人做某事2）n. 原因 cause : 强调事情发生的直

4、接原因(一个)reason : 其他各种的理由(很多个)The cause of sth 的起因The reason for sth 的理由 examine1）v. 仔细观察,检查,调查消防队员检查了森林的每一寸土地。The firefighters examined every inch of the forest.2）v. 诊查医生仔细的诊察了病人。The doctor examined his patient carefully 3）v. 考试,测试examine students in Englishn. exam 考试=examination accidentally adv. 意外

5、地,偶然地adj. accidental 意外的,偶然的 反义词 intentional意外死亡an accidental deathaccidentn. 事故,意外车祸a car accidentAccidentally=by chance=by accident我偶然间发现了金矿I found a gold mine by accident. remains1）n. 剩余物,残余物 残汤剩饭the remains of a meal2）n. (古建筑等物)遗址,废墟 圆明园遗址the remains of Yuanmingyuan3）n. 遗体,遗骸 毛主席的遗体被保存在水晶棺材里。The

6、 remains of Chairman Mao were kept well in a crystal coffin.remain1）v. 留下,剩下,遗留大火之后，我的房子里什么也没剩下。After the fire, nothing remained in my house. 要做的事还很多。Much remains to be done. 木已成舟Whats done is done.2）v. 仍是,保持不变他保持沉默。He remained silent. wiren. 金属线，电线 他用一根金属线把筐绑到了自行车上。He tied a basket to the bicycle w

7、ith a piece of wire.telephone wires 电话线Electric wires 电线wireless adj. 无线的 wireless telegraphy 无线电报volt n. 伏特voltage n. 电压,伏特数 power1）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.他的体力在衰退。3）权力,支配力,势力 political power 政治权力not within ones power= beyond ones power 力所不能及我无法理解计

8、算机是如何工作的。It is beyond my power to understand how the computer works.solve v. 解决,解答,回答 =work out解决问题solve a problem解开谜团solve a mystery我们必须解决经济危机。We must solve the economic crisis.n. solution 解决,解答花费了很长时间才找出解决方法。It took a long time to find the solutionsnatch1）v. 抢,夺,掠取 snatch up 抓起来贼把她的包抓起来逃跑了。The thi

9、ef snatched her bag and ran away.在他妈妈刚要看那张纸的时候，他把它夺走了。He snatched the paper as his mother was about to see it.2）v. (趁机)迅速取得,急急忙忙吃完饭 他出其不意,吻了她一下。He snathed a kiss from her.辨析snatch 迅速而有力(粗鲁地)抓住,抢 snatch a chancegrab 抓,抢,抢夺,抓住(热切而拼命地) grab sth from sb/ grab sth from sth grasp 1) 抓住或咬住,抓紧 grasp a chanc

10、e 抓住机会 2)掌握 grasp a languagehold 抓住,握住,托住 现在完成进行时构成：have/has been+doing含义：1）表示从过去某时开始一直持续到现在的动作，并且还将持续下去。2）表示在说话时刻之前到现在正在进行的动作。与现在完成时的区别I have been writing a book.我一直在写一本书。（动作还将继续下去） I have written a book.我已经写了一本书。（动作已经完成） 与现在完成时的联系They have been living in this city for ten years. They have lived in

11、 this city for ten years. 他们在这个城市已经住了10年了。 I have been working here for five years. I have worked here for five years. 我在这里已经工作五年了。 课文讲解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 bro

12、ken glass or by cigarette ends which people carelessly throw away. Yesterday the firemen 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 firemen accidentally discovered the caus

13、e. 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

14、wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire.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 mountainCalifornia=Golden State 黄金州put out 扑灭，熄灭，关掉请把灯关掉。Ple

15、ase 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。Ill try and find out the name of the person who saved my life yesterday.Forest fires are often caused by broken glass

16、 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） Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. be able to 能够 ；be not able to 没有能够They were also quite sure tha

17、t 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)ratherfairly 程度一个比一个轻quite a few 颇有几个(相当多的)start a firecause a fire start vt. 使发生，引起This morning, however, a firemen accidentally discovered the cause.However与but区别：How

18、ever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 dont 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

19、的东西the remains表示“尸体，残骸”，必须用复数形式村民们很惊奇的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？Did you 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 ones way 蜿

20、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 windowIn this way, he was able to solve the mystery.in this way 就这样The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then d

21、ropped it on to the wires. snatched up sth from the ground从地上抓起来drop vt&vi.无意掉下去的,使落下,使掉落她把花瓶掉到了地板上。She dropped the vase on the floor.茶壶从她手里掉了出来。The teapot dropped out of her hand。fall vi. 落下，（雨、雪）下，降，跌倒，摔倒强调的是掉下来的概念, 动作我跌倒了，伤到了我自己。I fell and hurt myself.当秋天叶落的时候，我就会回来。When leaves fall in autumn, Il

22、l come back.他从楼梯上摔下来，把他的腿摔断了。He fell down the stairs and broke his leg.书从桌子上掉到了地上。The book fell from the table to the floor。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.do so 这么做I refuse to do so. 我拒绝这么做so常用于一些动词之

23、后，代指前面提过的某个动作/某件事，以免重复我也这样认为。I think/believe so.start a fire=cause a fire 引起一场大火Comprehension questions1 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

24、 caused by? Broken glass or cigarette ends. 5 People are careless, arent they? Yes, they are. 6 When did the firemen examine the ground? Yesterday. 7 Did they find any broken glass? No, they didnt. 8 Did they think a cigarette end started the fire? No, theydidnt. 9 They were quite sure it didnt, wer

25、ent they?(Yes, they were. )10 When was the cause discovered? (This morning. )11 Who discovered it? (A fireman did. )12 Was it what he was looking for? (No, it wasnt. )【Special Difficulties】 Throw to，Throw at and Throw awaythrow作及物动词主要含义为“投，掷，抛，扔”。throw to (sb.) 扔给（某人） He threw the ball to me and I c

26、aught it.throw at 对准某一目标扔 The boy threw a stone at the window and broke it.throw away 扔掉，丢弃 Many people throw away cigarette ends carelessly.Cause and Reasoncause n. 原因，起因； Do you know the cause of the war?What was the cause of the delay? v. 使产生/发生，引起cause sth. 导致, 引起What caused the accident?cause s

27、b. to do sth. 导致某人做某事reason n. 理由，原因Give me your reasons for going there.What was the reason for the delay?作“原因”讲时，reason与cause可以互换，但reason与介词for连用；而cause则与介词of连用。reason后面通常跟why引导的从句： That was the reason why the meeting was put off. v. 推理，劝导，说服reason with sb. 劝说(以道理) How can you reason with him when he is so worried?Drop and Falldrop vi.&vt. （使）掉下，（使）落下，放下（强调的是不小心掉下来） As he walked past the tree, an apple dropped from it. The waiter dropped a fork.fall vi. 落下，（雨、雪）下，降，跌倒，摔倒（