新概念3课省公共课一等奖全国赛课获奖课件.pptx

lesson 43 lesson 43over the south Poleover the south Pole第1页can/cant/could/couldntI can dance the disco.I cant perform ballet.I could row a boat one year ago.I couldnt swim when I was four.fly kites/make model planes/take photos/sing English songs.Review 第2页First listen and then answer the question.第3页听录音，然后回答以下问题。听录音，然后回答以下问题。How was the plane able to How was the plane able to clear the mountains?clear the mountains?The American explorer ordered his men to throw out two heavy food sacks so the plane rose to10000 feet.第4页New words and expressions New words and expressions 生词和短语生词和短语pole n.pole n.（地球）极（地球）极flight n.flight n.飞行飞行explorer n.explorer n.探险家探险家lie v.lie v.处于处于serious adj.serious adj.严重严重point n.point n.地点地点seem v.seem v.似乎似乎crash v.crash v.坠毁坠毁sack n.sack n.袋子袋子clear v.clear v.越过越过aircraft n.aircraft n.飞机飞机endless adj.endless adj.无尽无尽plain n.plain n.平原平原第5页Ask and answer:1.When did the man successfully fly over the South Pole for the first time?2.Who successfully flew over the South pole for the first time?3.Would the plane crash?4.How did they clear the mountain?5.Why did Byrd now know that he would be able to reach the South Pole?6.Was there any difficulties?第6页 In 1929,three years after his flight over the North Pole,the American explorer,R.E.Byrd,successfully flew over the South Pole for the first time.Though,at first,Byrd and his men were able to take a great many photographs of the mountains that lay below,they soon ran into serious trouble.At one point,it seemed certain that their plane would crash.第7页It could only get over the mountains if it rose to 10,000 feet.Byrd at once ordered his men to throw out two heavy food sacks.The plane was then able to rise and it cleared the mountains by 400 feet.Byrd now knew that he would be able to reach the South Pole which was 300 miles away,for there were no more mountains in sight.The aircraft was able to fly over the endless white plains without difficulty.第8页canCanisoneofthemostcommonlyusedmodalverbsinEnglish.Itcanbeusedtoexpressabilityoropportunity,torequestorofferpermission,andtoshowpossibilityorimpossibility.Examples:Icanrideahorse.abilityWecanstaywithmybrotherwhenweareinParis.opportunityShecannotstayoutafter10PM.permission Canyouhandmethestapler?requestAnychildcangrowuptobepresident.possibility第9页Could Could is used to express possibility or past ability as well as to make suggestions and requests.Could is also commonly used in conditional sentences as the conditional form of can.Examples:Extreme rain could cause the river to flood the city.possibility Nancy could ski like a pro by the age of 11.past ability You could see a movie or go out to dinner.suggestion Could I use your computer to email my boss?request We could go on the trip if I didnt have to work this weekend.conditional Could cannot be used in positive sentences in which you describe a momentary or one-time ability.e.g.Yesterday,I could lift the couch by myself.Not Correct 第10页比较can和beableto表示成功地做了某事时，只能用was/wereableto，不能用could。Hecouldswimhalfwaybeforehegottired.(notcorrect)Hewasabletoswimhalfwaybeforehegottired.(correct)can用于表示“能力”时是指现在能力，过去或未来能力通惯用was/wereableto或will/shallbeableto表示。第11页Sum up the language points习惯用语习惯用语:dance the disco/perform ballet/take photos /word out/taketo/row a boat/be good at/sing songs/fly a kite/make model planes/be in hospital/have a good time语法知识语法知识:情态动词情态动词:can/cant第12页【New words and expressions】生词和短语生词和短语 polen.（地球）极（地球）极South Pole 南极南极North Pole 北极北极Pole Star 北极星北极星第13页liev.处于处于tell a lie 撒谎撒谎lie n.谎言谎言;lie v.撒谎撒谎 Eg.:You lied.You,liar!lie,lied,lied 撒谎撒谎lie/lai/,lay/lei/,lain/lein/处于处于,位于位于stay in bed/lie in bed 躺在床上躺在床上in bed 介词短语介词短语,lie vi.lie 现在分词现在分词-lyinglay v.放放,放置放置;lay an egg下一个蛋下一个蛋lay vt.lay sth.放放,放置放置lay,laid,laid第14页explorern.探险家探险家explore v.探险探险exploration n.(科研相关科研相关)探险探险,探求探求,开发开发adventuren.冒险冒险(追求刺激追求刺激)venture n.冒险冒险(为了财富为了财富,没有生命保障没有生命保障)第15页seemv.似乎，看起来seem+asif看起来似乎他看起来似乎以前从来没有在英国居住过。HeseemsasifhehadneverlivedinEnglandbefore.seem+adj.他看起来很有钱。Heseemsrich.seemtobeHeseemstoberich.seemthat看起来似乎Itseemsthatheisrich.第16页clearv.越过(凌空、不接触地)越过,跳过，没有接触面飞跃飞跃山峰clearthemountain那匹马越过了栅栏Thehorseclearedthefence.overadv.越过(距离)goover飞跃plainn.平原plaingirl平凡女孩第17页lay是动词lie过去式。表示“处于什么位置”。lie与lay区分：（1）lie作“躺，卧、处于（位置）”解时，过去式为：lay,过去分词为：lain；（2）lie作“撒谎”解时，过去式为：lied,过去分词为：lied；（3）lay可作“放，摆，搁；产卵”解，其过去式和过去分词均为：laid【例】Thebooksstill_whereI_themamonthago.A:lie,laidB:lay,laidC:lied,lainDlain,lied此题选B。这句话意思是：上个月前我“放”在那书现在还“躺”在那里。第18页pointn.地点地点point 点点,普通指从飞机上向下看点普通指从飞机上向下看点地点地点place,spotdot 点点-at第19页seemv.似乎似乎seem+as ifseem+adv.seem to beseem that.Eg.:He seems rich.He seems to be rich.It seems that he is rich.it seems that.看起来似乎看起来似乎.seem as if 看起来似乎看起来似乎Eg.:He seems as if he had never lived in England before.第20页crashv.坠毁坠毁crash(从上向下掉从上向下掉)aircrash 空难空难strike 撞击撞击clash 撞击撞击,冲突冲突clearv.越过越过over越过越过(距离距离)clear(凌空凌空)越过越过go over飞跃飞跃clear the mountain 飞跃山峰飞跃山峰The horse cleared the fense.第21页plainn.平原平原mountains 高山高山plain girl 平凡女孩平凡女孩Eg.:Im a plain girl.第22页课文讲解1、In1929,threeyearsafterhisflightovertheNorthPole,theAmericanexplorer,R.E.Byrd,successfullyflewovertheSouthPoleforthefirsttime.forthefirsttime第一次time表示“次，回”，还能够说thistime，lasttime，nexttime，anothertime，eachtime，forthelasttime我最终一次提醒你，假如你不快点，你就会赶不上火车。Iremindyouforthelasttimethatifyoudonthurry,youllmissthetrain.下次你见到他时候，把这些照片给他。Givehimthesephotosnexttimeyouseehim.第23页（1）这句话包含两个同位语。threeyearsafter为1929同位语，作插入性补充说明；REByrd作theAmericanexplorer同位语。第24页2、Though,atfirst,Byrdandhismenwereabletotakeagreatmanyphotographsofthemountainsthatlaybelow,theysoonranintoserioustrouble.连词though引导让步状语从句，其含义是“即使，尽管”。它永远不与but连用。can.可能性（只用于现在式和过去式）beableto.可能性,成功地做（可用于各种时态）takeaphotographof拍照片在他离开家之前，他给他房子照了张照片。Hetookaphotographofhishousebeforehelefthome.runintotrouble=getintotrouble碰到麻烦，陷入困境每次他碰到困难了，他都向父母寻求帮助。Eachtimeheranintotrouble,heaskedhisparentsforhelp.第25页3、Atonepoint,itseemedcertainthattheirplanewouldcrash.atonepoint在某一地方，在某一时刻（point也指时间上某一点）他曾一度下决心要当个画家。Atonepoint,hemadeuphismindtobecomeapainter.it为先行主语，真正主语为that引导从句。it作先行主语时经常与seem，appear，look等连用：现在似乎能够必定会议将被推迟。Itnowlookscertainthatthemeetingisgoingtobeputoff.第26页4、Itcouldonlygetoverthemountainsifitroseto10,000feet.riseto上升至5、Theplanewasthenabletoriseanditclearedthemountainsby400feet.by表示“相差，以之差”意思我晚了10分钟，没赶上火车。Imissedthetrainbytenminutes.他比我小两岁。Heisyoungerthanmebytwoyears.第27页fortherewerenomoremountainsinsight.因为前面再没有山了。for表示“因为”。insight表示“在看得见范围内”、“在可看见之处”：Nomanwasinsight.一个人也看不见。第28页Can和beableto区分can与beableto使用方法上区分口语中,can与beableto在使用方法上现有相同首先,又有不一样地方,这是应该引发注意。当它们表示能力时候，是同义。如：Hecanspeaktwoforeignlanguages.Heisabletospeaktwoforeignlanguages.第29页表示过去经过努力终于做成了某事要用beableto，而不能用can。如：Iwasabletoswimtothebankaftertheboatturnedover.can和beableto都能够表示能力.can泛指普通能力,而且只有两种形式,即:can,couldbeableto则主要指详细做到了某件事能力，其形式主要是靠be发生改变，所以形式比can多能够说：Icanswim.Iamabletoswim.不过不能说：Allthepeoplecouldescapefromthebigfireintime.只能说：Allthepeoplewereabletoescapefromthefireintime.第30页can能表猜测，beableto不能。can这种使用方法主要用于疑问句和否定句。Somebodyisknockingatthedoor.Whocanitbe?Itcantbeourteacherwhoisknockingatthedoor.其必定形式是mustbe。如:Itmustbeourteacherwhoisknockingatthedoor.第31页.beableto后边接动词不定式表示一个实际情况时，其否定形式不是benotableto，而是cannot。如：Wereyouabletocatchthefirstbusyesterdaymorning?No,Icouldnt.7.普通说来,beableto后边动词不定式没有被动语态。如:Imsureheisabletocorrecthismistakesingrammar.不说:*Imsurehismistakesareabletobecorrectedbyhim.第32页美国探险家美国探险家RE伯德在飞越北极伯德在飞越北极3年之后，于年之后，于1929年第年第1次飞越了南极。次飞越了南极。（1）这句话包含两个同位语。）这句话包含两个同位语。threeyearsafter为为1929同位语，作插入性补充说明；同位语，作插入性补充说明；REByrd作作theAmericanexplorer同位语。同位语。（2）forthefirsttime表示表示“第一次第一次”，time在这里表示在这里表示“次次”、“回回”，还能够说，还能够说thistime,lasttime,nexttime,anothertime,eachtime,forthelasttime等：等：Iremindyouforthelasttimethatifyoudonthurry,youllmissthetrain.我最终一次提醒你，假如不快点，你会误了火车。我最终一次提醒你，假如不快点，你会误了火车。Givehimthesephotosnexttimeyouseehim.下次你见到他时把这些相片给他。下次你见到他时把这些相片给他。第33页 即使开始时伯德和他助手们拍下了飞机下面连绵群山大量照片，但即使开始时伯德和他助手们拍下了飞机下面连绵群山大量照片，但他们很快就陷入了困境。他们很快就陷入了困境。（1）连词）连词though引导是让步状语从句，其含义为引导是让步状语从句，其含义为“即使即使”、“尽管尽管”。这个从句中时间状语。这个从句中时间状语at first被单独用逗号隔开了，被单独用逗号隔开了，它假如按正常词序应放在从句末尾，但有可能会引发误解。它假如按正常词序应放在从句末尾，但有可能会引发误解。（2）at first与主句中与主句中 soon形成时间上照应，表示先后次序。形成时间上照应，表示先后次序。（3）take a photograph of 表示表示“拍拍照片照片”：He took a photograph of his house before he left home.他离家前给他家房子拍了一张照片。他离家前给他家房子拍了一张照片。（4）that lay below为为 the mountains定语从句，定语从句，that为从句主语。为从句主语。（5）run into trouble含义与含义与 get into trouble相同，表示相同，表示“陷入困境陷入困境”：Each time he ran into trouble,he asked his parents for help.每当他陷入困境时，他都向他父母求援。每当他陷入困境时，他都向他父母求援。第34页在有个地方，飞机似乎必定要坠毁了。在有个地方，飞机似乎必定要坠毁了。（1）atonepoint在此处能够解释为在此处能够解释为“在有个地方在有个地方”，但它通常含义为，但它通常含义为“在某一在某一时刻时刻”，point指时间上某一点：指时间上某一点：Atonepoint,hemadeuphismindtobecomeapainter.他曾一度下决心要当个画家。他曾一度下决心要当个画家。（2）it为为“先行主语先行主语”，真正主语为，真正主语为that引导从句。引导从句。it作先行主语时经常与作先行主语时经常与seem，appear，look等连用：等连用：Itnowlookscertainthatthemeetingisgoingtobeputoff.现在似乎能够必定会议将被推迟。现在似乎能够必定会议将被推迟。第35页5itclearedthemountainsby400feet.它在离山头它在离山头400英尺高度飞越了过去。英尺高度飞越了过去。clear在这里表示在这里表示“（不接触地）越过（不接触地）越过”：Hecleared2.10metres.他跳过了他跳过了2.10米。米。by表示表示“以以之差之差”：Imissedthetrainbytenminutes.我晚了我晚了10分钟，没赶上火车。分钟，没赶上火车。Heisyoungerthanmebytwoyears.他比我小两岁。他比我小两岁。第36页fortherewerenomoremountainsinsight.因为前面因为前面再没有山了。再没有山了。for表示表示“因为因为”。insight表示表示“在看得见范围内在看得见范围内”、“在可看见在可看见之处之处”：Nomanwasinsight.一个人也看不见。一个人也看不见。第37页2.He _ play the piano now,but he_ play the piano two years ago.A.could;can B.can;couldnt C.can;could D.can;cant3.I bought a doll for Mary _ a birthday present.A.as B.at C.to D.with第38页Exercise 1.Tom isnt at school today,because he was _ yesterday.A.in the hospital B.in hospital C.in a hospital D.at hospital第39页4.Tim cant play _ piano,but he can play _ tennis.A./;the B.the;/C./;/D.the;the5.Can you skate?_,I can.A.Of course B.Sorry C.No D./第40页Jane cant use a computer.No,I cant.I dont think he can play the soccer.When could she swim?句型转换句型转换1.Jane can use a computer.(改为否定句改为否定句)2.Can you draw.(作否定回答作否定回答)3.I think he can play the soccer.(变否定句变否定句)4.She could swim when she was five.(提提问问)第41页第42页