新概念第二册lesson53市公开课一等奖百校联赛获奖课件.pptx

Lesson 53Hot snake第1页hot adj 1）热，酷热）热，酷热Strike while the iron is hot.趁热打铁趁热打铁.2）调味品辣）调味品辣辣椒和芥末是辣辣椒和芥末是辣.Pepper and mustard are hot.3）强烈）强烈,激烈激烈,热烈热烈.have a hot temper 脾气急躁脾气急躁a hot potato 棘手或讨厌事物或情况棘手或讨厌事物或情况第2页cause 1）V.引发引发cause sth:引发（麻烦）引发（麻烦）粗心造成事故粗心造成事故Carelessness causes accidents.骄傲使人失败骄傲使人失败Pride causes failurecarelessness第3页 examine1）v.仔细观察仔细观察,检验检验,调查调查消防队员检验了森林每一寸土地。消防队员检验了森林每一寸土地。The firefighters examined every inch of the forest.2）v.诊查诊查医生仔细诊察了病人。医生仔细诊察了病人。The doctor examined his patient carefully 3）v.考试考试,测试测试examine students in Englishn.exam 考试考试=examination第4页 accidentally adv.意外地意外地,偶然地偶然地n.accident 事故事故,意外意外 a car accidentadj.accidental 意外意外,偶然偶然 意外死亡意外死亡an accidental death第5页 remains1）n.剩下物剩下物,残余物残余物 残汤剩饭残汤剩饭the remains of a meal2）n.(古建筑等物古建筑等物)遗址遗址,废墟废墟 圆明园遗址圆明园遗址the remains of Yuanmingyuan3）n.遗体遗体,遗骸遗骸 毛主席遗体被保留在水晶棺材里。毛主席遗体被保留在水晶棺材里。The remains of Chairman Mao were kept well in a crystal coffin.第6页remain1）v.留下留下,剩下剩下,遗留遗留大火之后，我房子里什么也没剩下。大火之后，我房子里什么也没剩下。After the fire,nothing remained in my house.要做事还很多。要做事还很多。2）v.仍是仍是,保持不变保持不变他保持缄默。他保持缄默。He remained silent.第7页 wire n.金属线，电线金属线，电线 telephone wires 电话线电话线Electric wires 电线电线wireless adj.无线无线 第8页 power1）电力，动力）电力，动力 electric power 电力电力water power 水力水力2）力）力,能力能力 （自然体力、智力）（自然体力、智力）His power is failing.他体力在衰退。他体力在衰退。3）权力）权力,势力势力 within ones power beyond ones power 第9页solve v.处理处理,解答解答,回答回答 =work outsolve a problem我们必须处理经济危机。我们必须处理经济危机。We must solve the economic crisis.n.solution 处理处理,解答解答花费了很长时间才找出处理方法。花费了很长时间才找出处理方法。It took a long time to find the solution第10页Listen and answer questions1.Have firemen put out the big fire?2.What are forest fires often caused by?3.Who discovered the cause of the bid fire?4.Where did the snake wind itself?第11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一场森林大火。消防队员们终于扑灭了加利福尼亚一场森林大火。atlast（终于，到底）表示经过一番努力之后。putout能够表示“扑灭”、“熄灭”、“关掉”Pleaseputthelight/fireout.请把灯关掉把火灭掉。Farwaterdoesnotput out nearfire.谚远水救不了近火。第12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原因。从那时起，他们一直试图找出起火原因。sincethen从那时起，到现在为止findout（经过研究、努力等）找出，发觉，查出Weshallfind out thetruthearlyorlate.我们迟早会查明事实真相。Goandfind out thetruthtoreportbackquickly.立刻查明事实真相回来汇报。我会试着查出昨天救了我人名字。Illtryandfind out thenameofthepersonwhosavedmylifeyesterday.第13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玻璃或人们随手扔掉香烟头引发。森林火灾时常由破碎玻璃或人们随手扔掉香烟头引发。becausedby由所引发Hisdeathwascaused byahighfever.他死亡是由高烧引发。Theaccidentwascaused bythedrunkdriver.事故是由酒后驾车司机造成。cigarette ends 烟头烟头which 引导是引导是定语从句定语从句第14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，但未能发觉碎玻璃。昨天，消防队员仔细查看了地面，但未能发觉碎玻璃。be able to 能够能够；be not able to 没有能够没有能够Thedoctorswerenot able totreatthisdisease.医生治不了这种病。Iamsorry,Iamnot able tohelpyou.对不起，我无法帮助您。Iwasnot able togetintouchwithyouyesterday.我昨天无法和你联络上。他现在没方法接你电话。He isnot able totakeyourcallatthemoment.我无法回答您问题。Iamnot able tohelpyouwithyourquestions.第15页5.They were also quite sure that a cigarette end did not start the fire.他们还十分必定火灾也不是由烟头引发。他们还十分必定火灾也不是由烟头引发。be sure 确定确定Be suretosweeptheroomclean.一定要把房间清扫洁净。Iam sureyouwouldgetalongverywellwithhim.我相信你一定会跟他相处得很好。Onethingis sure;hecanthavegonefar.有一点是必定，他不可能走得很远。Sheis suretopasstheexamination.她一定会经过考试。start a firecause a fire 引发怒灾引发怒灾 第16页6.This morning,however,a fireman accidentally discovered the cause.然而今天早晨，一个消防队员偶然发觉了起火原因。然而今天早晨，一个消防队员偶然发觉了起火原因。discover 发觉（偶然发觉某个已经存在东西）发觉（偶然发觉某个已经存在东西）Theydiscoverthatthenewteacherisverystrict.他们发觉新来老师非常严格。Hewassurprisedtodiscoverthathisbestfriendhadturnedtraitor.他诧异地发觉他最好朋友竟成了叛徒。IdonotdiscoverthatuntilIgotopay.我去付钱时候才发觉。第17页snatch1）v.抢抢,夺夺,掠取掠取 snatch up 抓起来抓起来贼把她包抓起来逃跑了。贼把她包抓起来逃跑了。The thief snatched her bag and ran away.在他妈妈刚要看那张纸时候，他把它夺走了。在他妈妈刚要看那张纸时候，他把它夺走了。He snatched the paper as his mother was about to see it.2）v.(趁机趁机)快速取得快速取得,急急忙忙吃完饭急急忙忙吃完饭 他出其不意他出其不意,吻了她一下。吻了她一下。He snathed a kiss from her.第18页辨析辨析snatch 快速而有力快速而有力(粗鲁地粗鲁地)抓住抓住,抢抢 snatch a chancegrab 抓抓,抢抢,抢夺抢夺,抓住抓住(热切而拼命地热切而拼命地)grab sth from sb/grab sth from sth grasp 1)抓住或咬住抓住或咬住,抓紧抓紧 grasp a chance 抓住机会抓住机会 2)掌握掌握 grasp a languagehold 抓住抓住,握住握住,托住托住 第19页现在完成进行时现在完成进行时组成：组成：have/has been+doing含义：含义：1）表示从过去某时开始一直连续到现在动）表示从过去某时开始一直连续到现在动作，而且还将连续下去。作，而且还将连续下去。2）表示在说话时刻之前到现在正在进行动）表示在说话时刻之前到现在正在进行动作。作。第20页与现在完成时区分与现在完成时区分I have been writing a book.我一直在写一本书。我一直在写一本书。（动作还将继续下去）（动作还将继续下去）I have written a book.我已经写了一本书。我已经写了一本书。（动作已经完成（动作已经完成第21页7.henoticedtheremainsofasnakewhichwaswoundroundtheelectricwiresofa16,.000-voltpowerline.他发觉了缠绕在16，000伏高压线上一条死蛇。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过去分词。过去分词。wind在这里不表示在这里不表示“蜿蜒蜿蜒”，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吗？是你把这根铁丝缠在树上吗？第22页8.In this way,he was able to solve the mystery.The explanation was simple but very unusual.就这么，他解开了起火之谜。解释很简单，却异就这么，他解开了起火之谜。解释很简单，却异乎寻常。乎寻常。Solve v.处理处理 solve the problem 处理问题处理问题 第23页9.A bird had snatched up the snake from the ground 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。是蛇就缠住了几根电线。snatch v.抓抓 The man snatched her purse and ran.那人抓起她钱包就跑。（强调动作很快很猛）那人抓起她钱包就跑。（强调动作很快很猛）drop&fall a.drop 表示表示“使落下、使掉落使落下、使掉落”，是及物动词，是及物动词,带宾语：带宾语：He dropped the bag.b.fall 表示表示“掉下、跌倒掉下、跌倒”，是不及物动词，不能带宾，是不及物动词，不能带宾语。语。He fell down the stairs and broke his leg.第24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。当它这么做时，把火花送到了于是蛇就缠住了几根电线。当它这么做时，把火花送到了地面，这些火花立刻引发了一场大火。地面，这些火花立刻引发了一场大火。When it did so当它这么做时当它这么做时 so惯用于一些动词之后，代指前面提过某个动作某件事，惯用于一些动词之后，代指前面提过某个动作某件事，以免重复：以免重复：Has Susan got into University?I believe/think so.第25页本课所需掌握词组本课所需掌握词组:put out in this way since then solve the mystery find out snatch up throw away wind round 第26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,they didnt.第27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.)12 Was it what he was looking for?(No,it wasnt.)第28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.第29页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?第30页1 theres been a big forest fire in California.Where2 firemen have put it out.What/Who3 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31页6 the firemen examined the ground yesteday.When/What/Who7 they looked for broken glass.What8 a fireman discovered the cause accidentally.How/What/Who第32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 solved 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33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)What has been happening：have been trying to find(1.2)第34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 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 brightly.第35页1.c依据课文第二行theyhavebeentryingtofindouthowthefirebegan能够判断出只有c.wantedtofindoutwhathadcausedthefire最能说明消防队员仔细查看地面原因，其它3个选择都不够全方面。第36页2.d 依据课文第依据课文第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 能够判断只有能够判断只有d.a snake which had been dropped on to the wires by a bird 与课文实际内容相符，只有它是引发火灾原因，与课文实际内容相符，只有它是引发火灾原因，其它其它3个选择都不符合课文实际内容。个选择都不符合课文实际内容。第37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.其它3个选择都不能引导适当时间短语。第38页4.c 本句表示时间词是本句表示时间词是often,表示经常表示经常性动作，所以应该用普通现在时。性动作，所以应该用普通现在时。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 是普通现在时，第是普通现在时，第3人称单数形式，本句人称单数形式，本句主语主语Broken glass 是单数，所以是单数，所以c.最符最符合语法，所以选合语法，所以选c.第39页5.c a.almost certain(几乎必定几乎必定)，b.fairly certain(相当必定相当必定)，pletely certain(完全必定完全必定)，d.nearly certain(几几乎必定乎必定)4个选择中只有个选择中只有c.同前一句中同前一句中quite sure(十分确信十分确信)意义最靠近，所以选意义最靠近，所以选c.第40页6.c 只有只有c.succeeded in solving it(成功处理了它成功处理了它)同前一句中同前一句中 was able to solve the mystery(解开了这个谜解开了这个谜)含义相同，所含义相同，所以以c.是正确答案。是正确答案。其它其它3个选择都与前个选择都与前一句意思不符。一句意思不符。第41页7.d 只有只有d.on是正确是正确,因为它后面词是因为它后面词是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.其它其它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。注意本句说是在蛇被抓起之前，它在哪？注意本句说是在蛇被抓起之前，它在哪？它在地面上。它在地面上。第42页8.c a.controlled it(控制了它控制了它)；b.checked it(阻止了它阻止了它);c.extinguished it(扑灭了它扑灭了它)；d.turned it 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一句中 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.第43页9.d只有d.thismorning今天早上,是正确表示方式.其它3个选择都不符合习惯使用方法,都不是正确表示方式.所以选d.第44页10.aa.bychance(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.bychance同前一句中accidentally(偶然地)意义相同，所以选a.第45页11.c前一句短语Inthisway是用这种方法,本句需要选一个同这一短语含义相符合短语.a.Thatsso就是如此b.likethis像这么d.so所以,这3个选择都不符合题目意思.只有c.Thatshow(那就是.方法)同Inthisway含义相符合,因为how相当于thewayinwhich,所以选c.第46页12.ca.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snatched(抓住)意义相同,所以选c.第47页第48页