新概念英語(yǔ)第二冊(cè)課件Lesson53(共50張PPT)

1、Lesson 53Hot snake單詞學(xué)習(xí)hot fireman cause examine accidentally remains windwire volt power line solve mystery snatch spark adj. 帶電的，通電的n. 消防隊(duì)員v. 引起； n. 原因v. 檢查adv. 意外地，偶然地n. 尸體，殘骸v. 纏繞n. 電線n. 伏特（電壓?jiǎn)挝唬╇娏€v. 解決n. 謎v. 抓住n. 電火花hot adj 1）熱的，炎熱的Strike while the iron is hot. 趁熱打鐵.hot 炎熱的 warm 溫暖的 cool 涼爽的 ch

2、illy 寒冷的 cold 寒冷的,嚴(yán)寒的2）調(diào)味品辣的辣椒和芥末是辣的.Pepper and mustard are hot. 3）強(qiáng)烈的,激烈的,熱烈的.have a hot temper 脾氣暴躁a hot potato 棘手或討厭的事物或情況fireman=firefighter n 消防隊(duì)員hydrant haidrnt n.消防栓fire extinguisher 滅火器 Extinguish ikstigwiput out 滅火cause 1）V. 引起cause sth : 引起（麻煩）粗心導(dǎo)致事故Carelessness causes accidents. 驕傲使人失敗Pri

3、de causes failurecause sb to do sth 引起某人做某事, 導(dǎo)致某人做某事2）n. 原因 cause : 強(qiáng)調(diào)事情發(fā)生的直接原因(一個(gè))reason : 其他各種的理由(很多個(gè))be caused by某事由引起 carelessness examine1）v. 仔細(xì)觀察,檢查,調(diào)查消防隊(duì)員檢查了森林的每一寸土地。The firefighters examined every inch of the forest.2）v. 診查醫(yī)生仔細(xì)的診察了病人。The doctor examined his patient carefully 3）v. 考試,測(cè)試examin

4、e students in Englishn. exam 考試=examination accidentally adv. 意外地,偶然地adj. accidental 意外的,偶然的 意外死亡an accidental deathaccidentn. 事故,意外車禍a car accidentAccidentally=by chance=by accident我偶然間發(fā)現(xiàn)了金礦I found a gold mine by accident / accidentally.1. At last firemen have put out a big forest fire in Californi

5、a. 消防隊(duì)員們終于撲滅了加利福尼亞的一場(chǎng)森林大火。 at last（終于，到底）表示經(jīng)過(guò)一番努力之后。put out可以表示“撲滅”、“熄滅”、“關(guān)掉”P(pán)lease put the light/ fire out. 請(qǐng)把燈關(guān)掉把火滅掉。Far water does not put out near fire.諺遠(yuǎn)水救不了近火。2. Since then, they have been trying to find out how the fire began. 從那時(shí)起，他們一直試圖找出起火的原因。 since then 從那時(shí)起，到現(xiàn)在為止find out （經(jīng)過(guò)研究、努力等）找出，發(fā)現(xiàn)，

6、查出We shall find out the truth early or late.我們遲早會(huì)查明事實(shí)真相。Go and find out the truth to report back quickly.立刻查明事實(shí)真相回來(lái)匯報(bào)。我會(huì)試著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.3. Forest fires are often caused by broken glass or by cigarette ends which people carelessly

7、 throw away. 森林火災(zāi)時(shí)常由破碎的玻璃或人們隨手扔掉的香煙頭引起。 be caused by 由所引起His death was caused by a high fever.他的死亡是由高燒引起的。The accident was caused by the drunk driver.事故是由酒后駕車的司機(jī)造成的。cigarette ends 煙頭which 引導(dǎo)的是定語(yǔ)從句4. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. 昨天，消

8、防隊(duì)員仔細(xì)查看了地面，但未能發(fā)現(xiàn)碎玻璃。 be able to 能夠 ；be not able to 沒(méi)有能夠The doctors were not able to treat this disease.醫(yī)生治不了這種病。I am sorry, I am not able to help you.對(duì)不起，我無(wú)法幫助您。I was not able to get in touch with you yesterday.我昨天無(wú)法和你聯(lián)絡(luò)上。他現(xiàn)在沒(méi)辦法接你的電話。He is not able to take your call at the moment.我無(wú)法回答您的問(wèn)題。I am not

9、able to help you with your questions.5. They were also quite sure that a cigarette end did not start the fire. 他們還十分肯定火災(zāi)也不是由煙頭引起的。 be sure 確定Be sure to sweep the room clean.一定要把房間打掃干凈。I am sure you would get along very well with him.我相信你一定會(huì)跟他相處得很好。One thing is sure; he cant have gone far.有一點(diǎn)是肯定的，他不可

10、能走得很遠(yuǎn)。She is sure to pass the examination.她一定會(huì)通過(guò)考試。start a firecause a fire 引發(fā)火災(zāi) 6. This morning, however, a fireman accidentally discovered the cause. 然而今天上午，一個(gè)消防隊(duì)員偶然發(fā)現(xiàn)了起火的原因。 discover 發(fā)現(xiàn)（偶然發(fā)現(xiàn)某個(gè)已經(jīng)存在的東西）They discover that the new teacher is very strict.他們發(fā)現(xiàn)新來(lái)的老師非常嚴(yán)格。He was surprised to discover that

11、 his best friend had turned traitor.他驚訝地發(fā)現(xiàn)他最好的朋友竟成了叛徒。I do not discover that until I go to pay.我去付錢(qián)的時(shí)候才發(fā)現(xiàn)。 remains1）n. 剩余物,殘余物 殘湯剩飯the remains of a meal2）n. (古建筑等物)遺址,廢墟 圓明園遺址the remains of Yuanmingyuan3）n. 遺體,遺骸 毛主席的遺體被保存在水晶棺材里。The remains of Chairman Mao were kept well in a crystal coffin.remain1）

12、v. 留下,剩下,遺留大火之后，我的房子里什么也沒(méi)剩下。After the fire, nothing remained in my house. 要做的事還很多。Much remains to be done. 木已成舟Whats done is done.2）v. 仍是,保持不變他保持沉默。He remained silent. wiren. 金屬線，電線 他用一根金屬線把筐綁到了自行車上。He tied a basket to the bicycle with a piece of wire.telephone wires 電話線Electric wires 電線wireless adj

13、. 無(wú)線的 wireless telegraphy 無(wú)線電報(bào)volt n. 伏特voltage n. 電壓,伏特?cái)?shù) power1）電力，動(dòng)力 electric power 電力water power 水力2）力,能力 （自然的體力、智力）His power is failing.他的體力在衰退。3）權(quán)力,支配力,勢(shì)力 political power 政治權(quán)力not within ones power= beyond ones power 力所不能及我無(wú)法理解計(jì)算機(jī)是如何工作的。It is beyond my power to understand how the computer works.

14、solve v. 解決,解答,回答 =work out解決問(wèn)題solve a problem解開(kāi)謎團(tuán)solve a mystery我們必須解決經(jīng)濟(jì)危機(jī)。We must solve the economic crisis.n. solution 解決,解答花費(fèi)了很長(zhǎng)時(shí)間才找出解決方法。It took a long time to find the solutionsnatch1）v. 搶,奪,掠取 snatch up 抓起來(lái)賊把她的包抓起來(lái)逃跑了。The thief snatched her bag and ran away.在他媽媽剛要看那張紙的時(shí)候，他把它奪走了。He snatched th

15、e paper as his mother was about to see it.2）v. (趁機(jī))迅速取得,急急忙忙吃完飯 他出其不意,吻了她一下。He snathed a kiss from her.辨析snatch 迅速而有力(粗魯?shù)?抓住,搶 snatch a chancegrab 抓,搶,搶奪,抓住(熱切而拼命地) grab sth from sb/ grab sth from sth grasp 1) 抓住或咬住,抓緊 grasp a chance 抓住機(jī)會(huì) 2)掌握 grasp a languagehold 抓住,握住,托住 現(xiàn)在完成進(jìn)行時(shí)構(gòu)成：have/has been+do

16、ing含義：1）表示從過(guò)去某時(shí)開(kāi)始一直持續(xù)到現(xiàn)在的動(dòng)作，并且還將持續(xù)下去。2）表示在說(shuō)話時(shí)刻之前到現(xiàn)在正在進(jìn)行的動(dòng)作。與現(xiàn)在完成時(shí)的區(qū)別I have been writing a book.我一直在寫(xiě)一本書(shū)。（動(dòng)作還將繼續(xù)下去） I have written a book.我已經(jīng)寫(xiě)了一本書(shū)。（動(dòng)作已經(jīng)完成7. he noticed the remains of a snake which was wound round the electric wires of a 16,.000-volt power line. 他發(fā)現(xiàn)了纏繞在16，000伏高壓線上的一條死蛇。 the remains表示“

17、尸體”、“殘骸”，必須用復(fù)數(shù)形式wound為wind的過(guò)去分詞。wind在這里不表示“蜿蜒”，而表示“卷在上”、“纏繞”，常與aroundround連用： Did you wind this piece of wire round the tree? 是你把這根鐵絲纏在樹(shù)上的嗎？ 8. In this way, he was able to solve the mystery. The explanation was simple but very unusual. 就這樣，他解開(kāi)了起火之謎。解釋很簡(jiǎn)單，卻異乎尋常。 Solve v. 解決 solve the problem 解決問(wèn)題 9.

18、A bird had snatched up the snake from the ground and then dropped it on to the wires. 一只鳥(niǎo)把蛇從地上抓起來(lái)，然后把它扔到了電線上。于是蛇就纏住了幾根電線。 snatch v. 抓 The man snatched her purse and ran. 那人抓起她的錢(qián)包就跑。（強(qiáng)調(diào)動(dòng)作很快很猛） drop & fall a. drop 表示 “使落下、使掉落”，是及物動(dòng)詞, 帶賓語(yǔ)： He dropped the bag. b. fall 表示 “掉下、跌倒”，是不及物動(dòng)詞，不能帶賓語(yǔ)。 He fell do

19、wn the stairs and broke his leg. 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. 于是蛇就纏住了幾根電線。當(dāng)它這樣做時(shí)，把火花送到了地面，這些火花立刻引起了一場(chǎng)大火。 When it did so當(dāng)它這樣做時(shí) so常用于一些動(dòng)詞之后，代指前面提過(guò)的某個(gè)動(dòng)作某件事，以免重復(fù)： Has Susan got into University? I

20、believe / think so. 本課所需掌握詞組: put out in this way since then solve the mystery find out snatch up throw away wind round 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 f

21、ire began. 4 What are forest fires often 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, theydid

22、nt. 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. )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 1

23、6, 000-volt power line. Asking questions：Ask me ifT： 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? 1 theres been a big forest fire in California. Where2 firemen have put it out. What / Who3 theyve been trying

24、to discover the cause. What / Who4 fires are often caused by broken glass. What by / How / What5 theyre also caused by cigarette ends. What else6 the firemen examined the ground yesteday. When /What/ Who7 they looked for broken glass. What8 a fireman discovered the cause accidentally. How / What / W

25、hoKey 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 solved the mystery. He noticed the remains of a snake which had b

26、een 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.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 woun

27、d(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)CJack looked at his watch for the twentieth time. Suddenly Jill arrived. Ive been waiting for over an h

28、our, 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 here at exactly 2. 30, Jill said, and I waited for five minutes, but you didnt come. What have you been d

29、oing since then? Jack asked. Ive just been to the hairdressers，Jill answered brightly.c 根據(jù)課文第二行 they have been trying to find out how the fire began 可以判斷出只有c. wanted to find out what had caused the fire 最能說(shuō)明消防隊(duì)員仔細(xì)查看地面的原因，其他3個(gè)選擇都不夠全面。2. d 根據(jù)課文第10-12行A bird had snatched up the snake from the ground an

30、d 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 可以判斷只有d. a snake which had been dropped on to the wires by a bird 與課文的實(shí)際內(nèi)容相符，只有它是引起火災(zāi)的原因，其他3個(gè)選擇都不符合課文的實(shí)際內(nèi)容。 3. a 只有a. since最合乎題目意思和語(yǔ)法。因?yàn)楸揪涫乾F(xiàn)在完成進(jìn)行時(shí)，只有since引導(dǎo)的時(shí)間短語(yǔ)最適合于完成進(jìn)行時(shí)態(tài)，表示“自從以來(lái)”，所以應(yīng)該選a.其他3個(gè)選擇都不能引導(dǎo)合適的時(shí)間短語(yǔ)。4. c 本句表示時(shí)間的詞是often, 表示經(jīng)常性的動(dòng)作，因此應(yīng)該用一般現(xiàn)在時(shí)。 a. is causing 是進(jìn)行時(shí)，b. has caused 是完成時(shí)，d. is caused by 是現(xiàn)在時(shí)被動(dòng)語(yǔ)態(tài)，而本句需要主動(dòng)語(yǔ)態(tài)。 只有c. causes 是一般現(xiàn)在時(shí)，第3人稱單數(shù)形式，本句的主語(yǔ)Broken glass 是單數(shù)，所以c.最符合語(yǔ)法，所以選c.5. c a. almost certain(幾乎肯定)， b. fairly certain(相當(dāng)