新概念二册Lesson53课课件(共49张).ppt--（课件中不含音视频）

1、 A True StoryA bear went out of the zoo to search his child.Surrounded by so many people,he climbed the electrical pole out of panic(惊慌惊慌).When he reached the top of the pole,he didnt know whtat to do.He decided to get down,but unfortunately,he was killed for touching the wire.Finally,he fallen from

2、 the pole and passed away.What will happen when a snake meet an eagle which is right around a pole and electical wire?What will happen when a snake meet an eagle,right around the wire?They caues a fire.【New words and expressions】（13）hot adj.带电的，充电的带电的，充电的 fireman n.消防队员消防队员 cause v.引起；引起；n.原因原因 exam

3、ine v.检查检查 accidentally adv.意外地，偶然意外地，偶然地地 remains n.尸体，残骸尸体，残骸 wire n.电线电线 volt n.伏特（电压单位）伏特（电压单位）power line 电力线电力线 solve v.解决解决 mystery n.谜（无法接受地谜（无法接受地,解释不了的）解释不了的）snatch v.抓住抓住 spark n.电火花电火花 1.hot adj.带电的带电的,充充电的电的 hot adj.热的；新鲜的；棘热的；新鲜的；棘手的；带电的手的；带电的,充电的充电的 hot-hot-hot 麻辣烫；麻辣烫；hot-wings 辣鸡翅；辣鸡

4、翅；hot dog 热狗热狗 hot-tempered 火暴火暴(脾气脾气)的的 （temper n.脾气）脾气）hot line 热线；热线；hot topic 热门话题热门话题 It sells like a hot cake/cakes.表示一个东表示一个东西的畅销西的畅销,热销热销 best seller 畅销的东西畅销的东西 hot potato 棘手的问题棘手的问题 hot news 最热点的新闻最热点的新闻 2.fireman n.消防队员消防队员 hydrant n.hadrnt消防栓消防栓,消防龙头消防龙头 fire extinguisher kstgw 灭火器灭火器 （ex

5、tinguisher n.熄灭者熄灭者,灭火器）灭火器）extinguishput out 灭火灭火 cause v.&n.引起；原引起；原因因 v.引起引起 cause sth.引起麻烦引起麻烦 Carelessness causes accidents.粗心导致事故粗心导致事故 Pride causes failure.骄傲使人失败骄傲使人失败 cause sb.to do sth.引引起某人做某事起某人做某事,导致某人做某导致某人做某事事 Illness caused him to lose his temper.(lose ones temper 发火发火)n.原因，强调事情发生的直接

6、原因原因，强调事情发生的直接原因(一一个个)because 因为因为 reason 理由，其他各种的理由理由，其他各种的理由(很多个很多个)examine v.检查检查 examine the soil check v.核实核实,核对核对 accidentally adv.意外地意外地,偶然地偶然地(但更趋但更趋向于向于“偶然偶然”的意思的意思)accidentaccidentalaccidentally accident n.事故事故 unexpectedly adv.出乎意料地出乎意料地(更趋向于更趋向于“意外意外”的意思的意思)remains n.尸体尸体,残骸残骸 remains指指d

7、ead body solve v.解决解决 solve the mystery solve the problem snatch v.抓住抓住 catch v.抓，如抓鱼抓，如抓鱼 hold v.握着握着 snatch v.(突然抓起来突然抓起来)强调动作的突然强调动作的突然性性 seize v.抓住抓住(用力用力)seize my arm wire n.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 with a piece of wire.telephone wires 电话线 Electric wires 电线 wirele

8、ss adj.无线的 wireless telegraphy 无线电报volt n.伏特 voltage n.电压,伏特数 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.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 我无法理解计算机是如何工作的。It is beyond my power to understand how the computer

9、 works.【课文讲解课文讲解】1、Hot snake hot snake 触电的蛇触电的蛇 get an electric shock 触触电电 2、At last firemen have put out a big forest fire in California.at last 最后，终于最后，终于 put out a fire 扑灭火扑灭火（put out扑灭，熄灭，关掉）扑灭，熄灭，关掉）Please put the light/fire out.a fire 一场一场(堆堆)火火 3、Since then,they have been trying to find out h

10、ow the fire began.since then 从那时起，到现在为止从那时起，到现在为止 find out （经过研究、努力等）找出，（经过研究、努力等）找出，发现，查出发现，查出（这里（这里find out的宾语是个的宾语是个从句）从句）Ill try and find out the name of the person who saved my life yesterday.4、Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away

11、.broken glass 被打碎的玻璃片被打碎的玻璃片 cigarette ends 烟头烟头 5、They were also quite sure that a cigarette end did not start the fire.be able to 能够能够；be not able to 没有没有能够能够 be sure that 对对很有把握；很有把握；quite sure 相当的把握性相当的把握性 rather adv.相当相当 fairly adv.相当相当,公正地公正地,诚实地诚实地 quite(completely)ratherfairly 程度一个比一个轻程度一个比一

12、个轻 quite a few 颇有几个颇有几个(相当多的相当多的)start a firecause a fire （start vt.使使发生，引起）发生，引起）6、This morning,however,a firemen accidentally discovered the cause.accidentally=by chance 偶然地偶然地 discover本身含有偶然发现（某个已经存本身含有偶然发现（某个已经存在的东西）的含义在的东西）的含义 I dont know who discovered America.7、He noticed the remains of a sna

13、ke 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注意别人没注意的东西 the remains表示表示“尸体，残骸尸体，残骸”，必须用，必须用复数形式：复数形式：The villagers were surprised to see the remains of an aeroplane near the lake.16,000-volt power line 连字符连字符“-”一旦加在两个词之间一旦加在两个词之间,这个词之间就失去这个词之间就失去了加复数的资格了加复

14、数的资格,能够加连字符的概念一能够加连字符的概念一定是做定语定是做定语 wind vt.缠绕，卷在缠绕，卷在上；盘旋，蜿上；盘旋，蜿蜒蜒 vt.缠绕，卷在缠绕，卷在上（常与上（常与around/round连用）连用）Did you wind this piece of wire round the tree?vt.蜿蜒，盘旋蜿蜒，盘旋 wind ones way 蜿蜒而行蜿蜒而行 8、In this way,he was able to solve the mystery.in this way 就这样就这样 9、A bird had snatched up the snake from th

15、e ground and then dropped it on to the wires.had done 先发生的事先发生的事 drop 无意掉下去的无意掉下去的 10、When it did so,it sent sparks down to the ground and these immediately started a fire.do so 这么做这么做 I refuse to do so.我拒绝这么做我拒绝这么做 so常用于一些动词之后，代指前面提过的常用于一些动词之后，代指前面提过的某个动作某个动作/某件事，以免重复某件事，以免重复 I think/believe so.Com

16、prehension 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 caused by?Broken glass or cigarette ends.5 People are careless,arent they?Yes,they are.6

17、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,werent they?(Yes,they were.)10 When was the cause discovered?(This morning.)11 Who discovered it?(A fireman

18、did.)12 Was it what he was looking for?(No,it wasnt.)13 What did he notice?The remains of a snake which was wound round the electric wires of a 16,000-volt power line.【Special Difficulties】Throw to，Throw at and Throw away throw作及物动词主要含义为作及物动词主要含义为“投，掷，抛，投，掷，抛，扔扔”。throw to(sb.)扔给（某人）扔给（某人）He threw th

19、e ball to me and I caught it.throw at 对准某一目标扔对准某一目标扔 The boy threw a stone at the window and broke it.throw away 扔掉，丢弃扔掉，丢弃 Many people throw away cigarette ends carelessly.Cause and Reason cause n.原因，起因；原因，起因；Do you know the cause of the war?What was the cause of the delay?v.使使产生产生/发生，引起发生，引起 cause

20、 sth.导致导致,引起引起 What caused the accident?cause sb.to do sth.导致某人做某导致某人做某事事 reason n.理由，原因理由，原因 Give me your reasons for going there.What was the reason for the delay?作作“原因原因”讲时，讲时，reason与与cause可以互换，可以互换，但但reason与介词与介词for连用；而连用；而cause则与介词则与介词of连用。连用。reason后面通常跟后面通常跟why引导的从句：引导的从句：That was the reason w

21、hy the meeting was put off.v.推理，劝导，说服推理，劝导，说服 reason with sb.劝说劝说(以道理以道理)How can you reason with him when he is so worried?Drop and Fall drop vi.&vt.（使）掉下，（使）落（使）掉下，（使）落下，放下（强调的是不小心掉下来）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

22、落下，（雨、雪）下，降，跌倒，摔倒（强调的是掉下来的概念倒，摔倒（强调的是掉下来的概念,动作）动作）I fell and hurt myself.When leaves fall in autumn,Ill come back.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);

23、wound(1.11);it did so(1.11);sent(1.11);started(1.11)What has happened：have put out(1.1)What has been happening：have been trying to find(1.2)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?Ji

24、ll answered.Were you here at 2.30?Jack went red.Well,he said,I got here 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 b

25、rightly.1.c 根据课文第二行 they have been trying to find out how 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个选择都不够全面。2.d 根据课文第根据课文第10-12行行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 t

26、o the ground and these immediately started a fire 可以判断只有可以判断只有d.a snake which had been dropped on to the wires by a bird 与课文的实际内容相符，只有它是引起火灾与课文的实际内容相符，只有它是引起火灾的原因，其他的原因，其他3个选择都不符合课文的实际内个选择都不符合课文的实际内容。容。3.a 只有a.since最合乎题目意思和语法。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。4

27、.c 本句表示时间的词是本句表示时间的词是often,表示经表示经常性的动作，因此应该用一般现在时。常性的动作，因此应该用一般现在时。a.is causing 是进行时，是进行时，b.has caused 是完成时，是完成时，d.is caused by 是是现在时被动语态，而本句需要主动语态。现在时被动语态，而本句需要主动语态。只有只有c.causes 是一般现在时，第是一般现在时，第3人称单数形式，本句人称单数形式，本句的主语的主语Broken glass 是单数，所以是单数，所以c.最最符合语法，所以选符合语法，所以选c.5.c a.almost certain(几乎肯定几乎肯定)，b.

28、fairly certain(相当肯定相当肯定)，pletely certain(完全肯定完全肯定)，d.nearly certain(几几乎肯定乎肯定)4个选择中只有个选择中只有c.同前一句中的同前一句中的quite sure(十分确信十分确信)意义最接近，所以选意义最接近，所以选c.6.c 只有只有c.succeeded in solving it(成功解决了它成功解决了它)同前一句中的同前一句中的 was able to solve the mystery(解开了这个谜解开了这个谜)的含义相同，的含义相同，所以所以c.是正确答案。是正确答案。其他其他3个选择都与个选择都与前一句意思不符。

29、前一句意思不符。7.d 只有只有d.on是对的是对的,因为它后面的词因为它后面的词是是the ground,表示在地面上表示在地面上,只能用介词只能用介词on.其他其他3个选择都不符合题目意思个选择都不符合题目意思.The snake had been on the ground.这这条蛇在地面上。条蛇在地面上。注意本句说的是在蛇被抓起之前，它在哪注意本句说的是在蛇被抓起之前，它在哪？它在地面上。？它在地面上。8.c a.controlled it(控制了它控制了它)；b.checked it(制止了它制止了它);c.extinguished it(扑灭了它扑灭了它)；d.turned it

30、off(关掉，关关掉，关上它上它)，只有，只有c.extinguished it 与前面与前面一句中的一句中的 put out the fire(把火扑灭把火扑灭)意义相同，所以意义相同，所以选选c.9.d 只有d.this morning 今天早上,是正确的表达方式.其它3个选择都不符合习惯用法,都不是正确的表达方式.所以选d.10.a a.by chance(偶然)，b.chancily(没有这个词)；c.fortunately(幸运地)和d.luckily(侥幸地，幸运地)这4个选择中只有a.by chance 同前一句中的accidentally(偶然地)意义相同，所以选a.11.c 前一句的短语In this way 是用这种方法,本句需要选一个同这一短语含义相符合的短语.a.Thats so 就是如此 b.like this 像这样 d.so 因此,这3个选择都不符合题目意思.只有c.Thats how(那就是.的方法)同In this way 的含义相符合,因为how 相当于the way in which,所以选c.12.c a.taken(拿),b.pulled(拉,拖),c.seized(抓住)和d.carried(携带)4个选择中只有c.seized同前一句的snatched(抓住)意义相同,所以选c.Bye bye!Se!