新概念二43课(共40张)课件.ppt

1、Hello!Everyone!Lets have a happy class!Lesson 43Lesson 43over the south PoLeover the south PoLeFirst listen and then answer the question.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 thro

2、w out two heavy food sacks so the plane rose to10000 feet.New words and expressions New words and expressions 生词和短语生词和短语 pole n.pole n.（地球的）极（地球的）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.严重的严重的 point n.point n.地点地点 seem v.seem v.似乎似乎 crash v.cras

3、h 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.无尽的无尽的 plain n.plain n.平原平原 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 hi

4、s 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.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 sack

5、s.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.Ask and answer:1.Whe

6、n 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?can Can is

7、 one of the most commonly used modal verbs in English.It can be used to express ability or opportunity,to request or offer permission,and to show possibility or impossibility.Examples:I can ride a horse.ability We can stay with my brother when we are in Paris.opportunity She cannot stay out after 10

8、 PM.permission Can you hand me the stapler?request Any child can grow up to be president.possibility 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:Ext

9、reme 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 Coul

10、d 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 比较can和be able to 表示成功地做了某事时，只能用was/were able to，不能用could。He could swim halfway before he got tired.(not correct)He was able to swim halfway before h

11、e got tired.(correct)can用于表示“能力”时是指现在的能力，过去或将来的能力通常用was/were able to或will/shall be able to表示。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 Exercise 1.T

12、om isnt at school today,because he was _ yesterday.A.in the hospital B.in hospital C.in a hospital D.at hospital2.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.with4.Tim ca

13、nt 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./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 c

14、an play the soccer.(变否定句变否定句)4.She could swim when she was five.(提问提问)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重点句型重点句型He can s

15、ing very well/a little.She cant dance at all.Can you dance?Yes,I can./No,I cant.Could you ride a bike?Yes,he could,No,he couldnt.Can/Could he do?Yes he could./No,he couldnt.What can/could he do?He can/could swim.Whats eleven plus seven?Its eighteen.美国探险家美国探险家 R.E.R.E.伯德在飞越北极伯德在飞越北极3 3年之后，年之后，于于19291

16、929年第一次飞越了南极。虽然开始时伯德年第一次飞越了南极。虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量和他的助手们拍下了飞机下面连绵群山的大量照片，但他们很快就陷入了困境。在有个地方，照片，但他们很快就陷入了困境。在有个地方，飞机似乎肯定要坠毁了。只有在飞至飞机似乎肯定要坠毁了。只有在飞至10,00010,000英英尺的高度时，它才能飞过这些山头。伯德马上尺的高度时，它才能飞过这些山头。伯德马上命令他的助手们把两个沉重的食物袋扔掉，于命令他的助手们把两个沉重的食物袋扔掉，于是飞机可以上升了，它在离山头是飞机可以上升了，它在离山头400400英尺的高英尺的高度飞越了过去。伯德这时知道

17、他能够顺利飞抵度飞越了过去。伯德这时知道他能够顺利飞抵300300英里以外的南极了，因为前面再没有山了。英里以外的南极了，因为前面再没有山了。飞机可以毫无困难地飞过这片茫茫无际的白色飞机可以毫无困难地飞过这片茫茫无际的白色原野！原野！Homework:1.Recite the new words and expressions 2.Do the exercises of lesson43【New words and expressions】生词和短语生词和短语 polen.（地球的）极（地球的）极South Pole 南极南极North Pole 北极北极Pole Star 北极星北极星exp

18、lorern.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)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

19、 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,laidpointn.地点地点point 点点,一般指从飞机上向下看的点一般指从飞机上向下看的点地点地点place,spotdot 点点-atseemv.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

20、 if 看起来似乎看起来似乎Eg.:He seems as if he had never lived in England before.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.plainn.平原平原mountains 高山高山plain girl 平凡的女孩平凡的女孩Eg.:Im a pl

21、ain girl.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。three years after为为 1929的同位语，作插入性的补充说明；的同位语，作插入性的补充说明；REByrd 作作 the American explorer 的同位语。的同位语。（2）for the first time 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”，还可以说，还可以说 this time,last time,next time,another t

22、ime,each time,for the last time等：等：I remind you for the last time that if you dont hurry,youll miss the train.我最后一次提醒你，如果不快点，你会误了火车我最后一次提醒你，如果不快点，你会误了火车的。的。Give him these photos next time you see him.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。虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量照片，虽然开始时伯德和他的助手们拍下了飞机下面连绵群山的大量照片，但他们很快就陷入了困

23、境。但他们很快就陷入了困境。（1）连词）连词though引导的是让步状语从句，其含义为引导的是让步状语从句，其含义为“虽然虽然”、“尽管尽管”。这个从句中的时间状语。这个从句中的时间状语at first被单独用逗号隔开了，被单独用逗号隔开了，它如果按正常的词序应放在从句的末尾，但有可能会引起误解。它如果按正常的词序应放在从句的末尾，但有可能会引起误解。（2）at first与主句中的与主句中的 soon形成时间上的照应，表示先后次序。形成时间上的照应，表示先后次序。（3）take a photograph of 表示表示“拍拍的照片的照片”：He took a photograph of hi

24、s house before he left home.他离家前给他家的房子拍了一张照片。他离家前给他家的房子拍了一张照片。（4）that lay below为为 the mountains的定语从句，的定语从句，that为从句的为从句的主语。主语。（5）run into trouble的含义与的含义与 get into trouble相似，表示相似，表示“陷入陷入困境困境”：Each time he ran into trouble,he asked his parents for help.每当他陷入困境时，他都向他父母求助。每当他陷入困境时，他都向他父母求助。在有个地方，飞机似乎肯定要坠

25、毁了。在有个地方，飞机似乎肯定要坠毁了。（1）at one point在此处可以解释为在此处可以解释为“在在有个地方有个地方”，但它通常的含义为，但它通常的含义为“在某一时在某一时刻刻”，point指时间上的某一点：指时间上的某一点：At one point,he made up his mind to become a painter.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”，真正的主语为，真正的主语为that引导的从句。引导的从句。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：It now looks

26、certain that the meeting is going to be put off.现在似乎可以肯定会议将被推迟。现在似乎可以肯定会议将被推迟。5 it cleared the mountains by 400 feet.它在离山头它在离山头400英尺的高度飞越了过去。英尺的高度飞越了过去。clear在这里表示在这里表示“（不接触地）越过（不接触地）越过”：He cleared 2.10 metres.他跳过了他跳过了2.10米。米。by表示表示“以以之差之差”：I missed the train by ten minutes.我晚了我晚了10分钟，没赶上火车。分钟，没赶上火车。He is younger than me by two years.他比我小两岁。他比我小两岁。for there were no more mountains in sight.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”。in sight表示表示“在看得见的范围内在看得见的范围内”、“在可看在可看见之处见之处”：No man was in sight.一个人也看不见。一个人也看不见。