新概念二册53课课件

1、Lesson 53 Hot snake 共五十页A True Story共五十页A bear went out of the zoo to search his child. Surrounded by so many people , he climbed the electrical pole out of panic(惊慌(jnghung).共五十页When he reached the top of the pole, he didnt know whtat to do.共五十页He decided to get down, but unfortunately, he was kill

2、ed for touching the wire.共五十页Finally, he fallen from the pole and passed away.共五十页What will happen when a snake meet an eagle which is right around a pole and electical wire ?共五十页What will happen when a snake meet an eagle, right around the wire ?They caues a fire.共五十页【New words and expressions】（13）

3、 hot adj. 带电的，充电的fireman n. 消防队员cause v. 引起； n. 原因(yunyn)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 v. 解决mystery n. 谜（无法接受地, 解释不了的）snatch v. 抓住spark n. 电火花共五十页1.hot adj. 带电的, 充电的hot adj. 热的；新鲜(xn xin)的；棘手的；带电的, 充电的hot-hot-hot 麻辣烫；hot-wings 辣鸡翅

4、；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. 表示一个东西的畅销, 热销共五十页best seller 畅销的东西hot potato 棘手(jshu)的问题hot news 最热点的新闻2.fireman n. 消防队员hydrant n. hadrnt消防栓, 消防龙头fire extinguisher kstgw 灭火器 （extinguisher n. 熄灭者, 灭火器）extinguishput out 灭火共五十页caus

5、e v.& n. 引起(ynq)；原因 v. 引起cause sth. 引起麻烦Carelessness causes accidents. 粗心导致事故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Illness caused him to lose his temper. (lose ones temper 发火)共五十页 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)examine v. 检查examine the soilcheck v.

6、核实(hsh), 核对共五十页accidentally adv. 意外地, 偶然地 (但更趋向于 “偶然” 的意思)accidentaccidentalaccidentallyaccident n. 事故unexpectedly adv. 出乎意料地(更趋向于 “意外” 的意思)remains n. 尸体(sht), 残骸remains指dead body共五十页solve v. 解决solve the mysterysolve the problemsnatch v. 抓住catch v. 抓，如抓鱼hold v. 握着snatch v. (突然抓起来)强调(qing dio)动作的突然性s

7、eize v. 抓住(用力)seize my arm共五十页 wiren. 金属线，电线 他用一根(y n)金属线把筐绑到了自行车上。He tied a basket to the bicycle with 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,伏特数共五十页 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

8、 is failing.他的体力在衰退(shuitu)。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算机是如何工作的。It is beyond my power to understand how the computer works.共五十页【课文讲解】1、Hot snakehot snake 触电的蛇get an electric shock 触电2、At last firemen have put out a big forest fire in Californi

9、a.at last 最后，终于(zhngy)put out a fire 扑灭火（put out扑灭，熄灭，关掉） Please put the light/fire out.a fire 一场(堆)火共五十页3、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(ynji)、努力等）找出，发现，查出（这里find out的宾语是个从句） Ill try and find out the name of the person who saved

10、my life yesterday.共五十页4、Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away.broken glass 被打碎的玻璃片cigarette ends 烟头5、They were also quite sure that a cigarette end did not start the fire.be able to 能够(nnggu) ；be not able to 没有能够be sure that 对很有把握；quite

11、 sure 相当的把握性共五十页rather adv. 相当fairly adv. 相当, 公正地, 诚实(chng sh)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）共五十页6、This morning, however, a firemen accidentally discovered the cause.accidentally =by chance 偶然地discover本身含有(hn yu)偶然发现（某个已经存在的东西）

12、的含义 I dont know who discovered America.7、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： 共五十页The villagers were surprised to see the remains of an aeroplane near the lake.16,000-volt power line 连字符“

13、-” 一旦加在两个词之间, 这个词之间就失去了加复数的资格, 能够加连字符的概念一定(ydng)是做定语共五十页wind vt. 缠绕，卷在上；盘旋(pnxun)，蜿蜒 vt. 缠绕，卷在上（常与around/round连用）Did you wind this piece of wire round the tree? vt. 蜿蜒，盘旋wind ones way 蜿蜒而行 8、In this way, he was able to solve the mystery.in this way 就这样共五十页9、A bird had snatched up the snake from the

14、ground and then dropped it on to the wires.had done 先发生(fshng)的事drop 无意掉下去的10、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常用于一些动词之后，代指前面提过的某个动作/某件事，以免重复 I think/believe so.共五十页Comprehension questions1 Where was there a bi

15、g 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. 共五十页5 People are careless, arent they? Yes, they are. 6 When did the firemen exam

16、ine 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. 共五十页9 They were quite sure it didnt, werent they?(Yes, they were. )10 When was the cause discovered? (This morning. )11 Who discovered it? (A fireman did. )1

17、2 Was it what he was looking for? (No, it wasnt. )共五十页13 What did he notice? The remains of a snake which was wound round the electric wires of a 16, 000-volt power line. 共五十页【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

18、 and I caught it.throw at 对准某一目标(mbio)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.共五十页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(dozh), 引起What cau

19、sed the accident?cause sb. to do sth. 导致某人做某事共五十页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(ky)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)

20、How can you reason with him when he is so worried?共五十页Drop and Falldrop vi.&vt. （使）掉下，（使）落下，放下(fn xi)（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（强调的是掉下来的概念, 动作） I fell and hurt myself. When leaves fall in autumn, Ill come ba

21、ck.共五十页Key to KS ExercisesAWhat happened：began(1. 2); examined(1. 4);were not able tofind(1. 5); did not start(1. 6); discovered (1. 7); noticed(1.8);was wound(1. 8); was able to s olve(1. 9);dropped(1. 10); wound(1.11);it did so(1. 11); sent(1. 11);started (1. 11)What has happened：have put out(1. 1

22、)What has been happening：have been trying to find(1. 2)共五十页CJack looked at his watch for the twentieth time. Suddenly Jill arrived. Ive been waiting for over an hour, he said angrily. You never come on time. Oh, is that so?Jill answered. Were you here at 2. 30? Jack went red. Well, he said, I got he

23、re five minutes late myself, but you werent here. I came here at exactly 2. 30, Jill said, and I waited for five minutes, but you didnt come. What have you been doing since then? Jack asked. Ive just been to the hairdressers，Jill answered brightly.共五十页c 根据课文第二行 they have been trying to find out how

24、the fire began 可以判断出只有c. wanted to find out what had caused the fire 最能说明消防队员仔细查看地面的原因，其他3个选择(xunz)都不够全面。共五十页2. d 根据课文第10-12行A bird had snatched up the snake from the ground and then dropped it on to the wires When it I did so, it sent sparks down to the ground and these immediately started a fire 可

25、以判断(pndun)只有d. a snake which had been dropped on to the wires by a bird 与课文的实际内容相符，只有它是引起火灾的原因，其他3个选择都不符合课文的实际内容。 共五十页3. a 只有a. since最合乎(hh)题目意思和语法。因为本句是现在完成进行时，只有since引导的时间短语最适合于完成进行时态，表示“自从以来”，所以应该选a.其他3个选择都不能引导合适的时间短语。共五十页4. c 本句表示时间的词是often, 表示经常性的动作，因此应该(ynggi)用一般现在时。 a. is causing 是进行时，b. has

26、caused 是完成时，d. is caused by 是现在时被动语态，而本句需要主动语态。 只有c. causes 是一般现在时，第3人称单数形式，本句的主语Broken glass 是单数，所以c.最符合语法，所以选c.共五十页5. c a. almost certain(几乎肯定)， b. fairly certain(相当肯定)，c. completely certain(完全肯定)， d. nearly certain(几乎肯定)4个选择中只有c. 同前一句中的quite sure(十分(shfn)确信)意义最接近，所以选c.共五十页6. c 只有c. succeeded in s

27、olving it (成功解决了它)同前一句中的 was able to solve the mystery (解开(ji ki)了这个谜)的含义相同，所以c.是正确答案。 其他3个选择都与前一句意思不符。共五十页7. d 只有d. on是对的,因为它后面(hu mian)的词是the ground,表示在地面上,只能用介词on.其他3个选择都不符合题目意思.The snake had been on the ground.这条蛇在地面上。 注意本句说的是在蛇被抓起之前，它在哪？它在地面上。共五十页8. c a. controlled it (控制了它)；b. checked it (制止了它); c. extinguished it (扑灭了它)；d. turned it off (关掉，关上它)，只有(zhyu)c. extinguished it 与前面一句中的 put