新概念2-第53课-课件学习教案

1、会计学1新概念新概念(ginin)2-第第53课课-课件课件第一页，共51页。adj. 带电的，通电的带电的，通电的n. 消防队员消防队员v. 引起；引起； n. 原因原因v. 检查检查adv. 意外地，偶然地意外地，偶然地n. 尸体，残骸尸体，残骸v. 缠绕缠绕(chnro)n. 电线电线n. 伏特（电压单位）伏特（电压单位）电力线电力线v. 解决解决n. 谜谜v. 抓住抓住n. 电火花电火花第1页/共51页第二页，共51页。第2页/共51页第三页，共51页。第3页/共51页第四页，共51页。第4页/共51页第五页，共51页。reason : The cause of sth 的起因的起因(

2、qyn)The reason for sth 的理由的理由(lyu)第5页/共51页第六页，共51页。n. exam 考试=examination第6页/共51页第七页，共51页。I found a gold mine by accident.第7页/共51页第八页，共51页。第8页/共51页第九页，共51页。第9页/共51页第十页，共51页。第10页/共51页第十一页，共51页。第11页/共51页第十二页，共51页。第12页/共51页第十三页，共51页。He snathed a kiss from her.第13页/共51页第十四页，共51页。hold 抓住,握住,托住第14页/共51页第十

3、五页，共51页。现在完成现在完成(wn chng)进行时进行时构成：构成：have/has been+doing含义：含义：1）表示从过去某时开始一直持续）表示从过去某时开始一直持续(chx)到到现在的动作，并且还将持续现在的动作，并且还将持续(chx)下去。下去。2）表示在说话时刻之前到现在正在进行的动）表示在说话时刻之前到现在正在进行的动作。作。第15页/共51页第十六页，共51页。与现在与现在(xinzi)完成时的区别完成时的区别I have been writing a book.我一直在写一本书。我一直在写一本书。（动作（动作(dngzu)还将继续下去）还将继续下去） I have

4、written a book.我已经写了一本书。我已经写了一本书。（动作（动作(dngzu)已经完成已经完成第16页/共51页第十七页，共51页。1. At last firemen have put out a big forest fire in California. 消防队员们终于扑灭了加利福尼亚的一场森林(snln)大火。 （1）at last（终于，到底）表示经过一番努力之后。 （2）put out可以表示“扑灭”、“熄灭”、“关掉”等含义： Please put the light/ fire out. 请把灯关掉把火灭掉。 （3）forest虽然是名词，但在句中起形容词的作用，

5、修饰fire。 第17页/共51页第十八页，共51页。2. Since then, they have been trying to find out how the fire began. 从那时起，他们一直试图找出起火从那时起，他们一直试图找出起火(q hu)的原因。的原因。 since then 从那时起，到现在为止从那时起，到现在为止find out （经过（经过(jnggu)研究、努力等）找出，发现，查出研究、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。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 perso

6、n who saved my life yesterday.第18页/共51页第十九页，共51页。3. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. 森林火灾时常由破碎森林火灾时常由破碎(p su)的玻璃或人们随手扔掉的香烟头的玻璃或人们随手扔掉的香烟头引起。引起。 cigarette ends 烟头烟头Throw away 扔掉，丢弃扔掉，丢弃Throw about 随处扔随处扔Throw at 扔向（有目标性）扔向（有目标性）Thr

7、ow to 扔向（无目标性扔向（无目标性第19页/共51页第二十页，共51页。4. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. 昨天，消防队员仔细查看了地面，但未能发现碎玻璃。昨天，消防队员仔细查看了地面，但未能发现碎玻璃。 examine v. 检查，名词形式是检查，名词形式是examination, 通常简写成通常简写成exam, 表表示考试。示考试。 be able to 能够能够(nnggu) ；be not able to 没有能够没有

8、能够(nnggu)第20页/共51页第二十一页，共51页。5. They were also quite sure that a cigarette end did not start the fire. 他们还十分肯定火灾也不是由烟头引起的。他们还十分肯定火灾也不是由烟头引起的。 quite sure 相当相当(xingdng)的把握性的把握性start a firecause a fire start vt. 使使发生，引起发生，引起第21页/共51页第二十二页，共51页。6. This morning, however, a fireman accidentally discovered

9、 the cause. 然而然而(rn r)今天上午，一个消防队员偶然发现了起火的今天上午，一个消防队员偶然发现了起火的原因。原因。 Accidentally 表示事情出乎意料地发生，即表示事情出乎意料地发生，即 “意外地、意外地、偶然地偶然地” discover含有偶然发现（某个已经存在的东西）的意思含有偶然发现（某个已经存在的东西）的意思，在，在discover前面加上前面加上accidentally更加强了更加强了“偶然性偶然性”和和“意外性意外性”。 第22页/共51页第二十三页，共51页。7. he noticed the remains of a snake which was w

10、ound round the electric wires of a 16,.000-volt power line. 他发现了缠绕(chnro)在16，000伏高压线上的一条死蛇。 the remains表示表示“尸体尸体”、“残骸残骸”，必须用复数形式，必须用复数形式wound为为wind的过去分词。的过去分词。wind在这里不表示在这里不表示“蜿蜒蜿蜒(wn yn)”，而表示，而表示“卷在卷在上上”、“缠绕缠绕”，常与，常与aroundround连用：连用： Did you wind this piece of wire round the tree? 是你把这根铁丝缠在树上的吗？是你把

11、这根铁丝缠在树上的吗？ 第23页/共51页第二十四页，共51页。8. In this way, he was able to solve the mystery. The explanation was simple but very unusual. 就这样，他解开就这样，他解开(ji ki)了起火之谜。解释很简单，却了起火之谜。解释很简单，却异乎寻常。异乎寻常。 Solve v. 解决解决 e.g. solve the problem 解决问题解决问题 第24页/共51页第二十五页，共51页。9. A bird had snatched up the snake from the grou

12、nd and then dropped it on to the wires. 一只鸟把蛇从地上抓起来，然后把它扔到了电线上。于是一只鸟把蛇从地上抓起来，然后把它扔到了电线上。于是蛇就缠住了几根电线。蛇就缠住了几根电线。 snatch v. 抓抓 The man snatched her purse and ran. 那人抓起她的钱包就跑。（强调动作很快很猛）那人抓起她的钱包就跑。（强调动作很快很猛） drop & fall a. drop 表示表示 “使落下使落下(lu xi)、使掉落、使掉落”，是及物动词，是及物动词, 带带宾语：宾语： He dropped the bag. b.

13、 fall 表示表示 “掉下、跌倒掉下、跌倒”，是不及物动词，不能带宾语。，是不及物动词，不能带宾语。 He fell down the stairs and broke his leg. 第25页/共51页第二十六页，共51页。10. 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. 于是蛇就缠住了几根电线。当它这样做时，把火花送到于是蛇就缠住了几根电线。当它这样做时，把火花送到

14、了地面，这些火花立刻引起了一场大火。了地面，这些火花立刻引起了一场大火。 When it did so当它这样做时当它这样做时 so常用于一些动词之后，代指前面提过的某个动作某常用于一些动词之后，代指前面提过的某个动作某件事，以免件事，以免(ymin)重复：重复： Has Susan got into University? I believe / think so. 第26页/共51页第二十七页，共51页。本课所需掌握本课所需掌握(zhngw)词组词组: put out in this way since then solve the mystery find out snatch up t

15、hrow away wind round 第27页/共51页第二十八页，共51页。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 caused by? Broken glass or cigarette e

16、nds. 第28页/共51页第二十九页，共51页。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. 第29页/共51页第三十页，共51页。9 They were quite sure it didnt, wer

17、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. )第30页/共51页第三十一页，共51页。13 What did he notice? The remains of a snake which was wound round the electric wires of a 16, 000-volt power li

18、ne. 第31页/共51页第三十二页，共51页。Asking questions：Ask me if T： theres been a big forest fire in California.S：Has there been a big forest fire in California?T：Where ?S：Where has been a big forest fire? 第32页/共51页第三十三页，共51页。1 theres been a big forest fire in California. Where2 firemen have put it out. What / Wh

19、o3 theyve been trying to discover the cause. What / Who4 fires are often caused by broken glass. What by / How / What5 theyre also caused by cigarette ends. What else第33页/共51页第三十四页，共51页。6 the firemen examined the ground yesteday. When /What/ Who7 they looked for broken glass. What8 a fireman discove

20、red the cause accidentally. How / What / Who第34页/共51页第三十五页，共51页。Key to Summary writingNow that firemen have put out a big forest fire in California,they have been trying to discover its cause. There was no evidencethat it was started by broken glass or a cigarette end. However a fireman has just sol

21、ved the mystery. He noticed the remains of a snake which had been dropped by a bird on to some electric wires. In winding itself round the wires, the snake had sent sparks to the ground and this caused the fire.第35页/共51页第三十六页，共51页。Key to KS ExercisesAWhat happened：began(1. 2); examined(1. 4);were no

22、t 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)What has been happening：have been trying to find(1. 2)第36页/共51页第三十七页，共51页。C

23、Jack 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 here five minutes late myself, but you werent here. I came her

24、e 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.第37页/共51页第三十八页，共51页。1. c 2. 根据课文第二行 they have been trying to find out how the fire began 3. 可以判断出只有(zhyu)c. want

25、ed to find out what had caused the fire 4. 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。第38页/共51页第三十九页，共51页。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 to the ground and these immediately started a fire 可以判断只有可以判断只

26、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，只有它是引起与课文的实际内容相符，只有它是引起(ynq)火灾的火灾的原因，其他原因，其他3个选择都不符合课文的实际内容。个选择都不符合课文的实际内容。 第39页/共51页第四十页，共51页。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(duny)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(duny)。第40页/共51页第四十一页，共51页。4.

27、 c 本句表示本句表示(biosh)时间的词是时间的词是often, 表示表示(biosh)经常性的动作，因此应该用一经常性的动作，因此应该用一般现在时。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 是现在是现在时被动语态，而本句需要主动语态。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，本句的主人称单数形式，本句的主语语Broken glass 是单数，所以是单数，所以c.最符合语法最符合语法，所以选，所以选c.第41页/共51页第四十

28、二页，共51页。5. c a. almost certain(几乎肯定几乎肯定)， b. fairly certain(相当肯定相当肯定)，c. completely 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)意义意义(yy)最接近，最接近，所以选所以选c.第42页/共51页第四十三页，共51页。6. c 只有只有c. succeeded in solving it (成功解决成功解决(jiju)了它了它)同前一句中同前一句中的的 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个选择个选择都与前一句意思不符。都与前一句意思不符。第43页/共51页第四十四页，共51页。7. d 只有只有d. on是对的是对的,因为它后面的词是因为它后面的词是the ground,表示在地面上表示在地面上,只能只能(zh nn)用介词用介词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 b