新概念英语第二册43课ppt课件.pptx

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1、,Lesson 43,Over the south pole,单词学习,pole flight explorer lie serious point seem crash sack clear aircraft endless plain,n.（地球的）极n. 飞行n. 探险家v. 处于adj. 严重的n. 地点v. 似乎v. 坠毁n. 袋子v. 越过n. 飞机adj. 无尽的n. 平原,ole n.（地球的）极the South Pole 南极the North Pole 北极Pole Star 北极星explorer n. 探险家, 探测者, 探测器explore v.探险, 探测, 探究

2、exploration n.(科研相关)探险,探求,开发adventure n.冒险(追求刺激)venture n. 冒险(为了财富),lie v. 处于 vi. 处于,位于(+地点)现在这条山脉正位于我们的下面。The mountains lie below us now.小镇位于伦敦的东部The town lies to the east of London. vi. 躺，（平）卧躺在床上stay in bed = lie in bed当我坐在篝火旁的时候，我的狗躺在我的旁边。While I sat by the fire, my dog lay beside me. vt. 撒谎tell

3、 a lie 撒谎You lied. = You lied to me.你骗人! 你撒谎! You,liar! 你, 骗子! n.谎言,seem v. 似乎，看起来seem + as if 看起来似乎他看起来似乎以前从来没有在英国居住过。He seems as if he had never lived in England before.seem + adj. 他看起来很有钱。He seems rich.seem to beHe seems to be rich.seem that 看起来似乎It seems that he is rich.,clear v. 越过(凌空、不接触地)越过,

4、跳过，没有接触面的飞跃飞跃山峰clear the mountain那匹马越过了栅栏The horse cleared the fence. over adv. 越过(距离)go over飞跃plain n. 平原plain girl 平凡的女孩, crashv. 坠毁crash(从上向下掉)aircrash 空难strike 撞击clash 撞击,冲突,听录音，然后回答以下问题。 How was the plane able to clear the mountains?,The American explorer ordered his men to throw out two heavy

5、food sacks so the plane rose to10000 feet.,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 be

6、low, 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 sacks.,The plane was then able to rise and it cleared the mountains by 400 f

7、eet. 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.,课文讲解,1、In 1929, three years after his flight over the North Pole, the American explorer

8、, R.E. Byrd, successfully flew over the South Pole for the first time.for the first time 第一次time表示“次，回”，还可以说this time，last time，next time，another time，each time，for the last time我最后一次提醒你，如果你不快点，你就会赶不上火车的。 I remind you for the last time that if you dont hurry, youll miss the train.下次你见到他的时候，把这些照片给他。

9、Give him these photos next time you see him.,（1）这句话包含两个同位语。three years after为 1929的同位语，作插入性的补充说明；REByrd 作 the American explorer 的同位语。,2、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.连词though引导让步状语从句，其

10、含义是“虽然，尽管”。它永远不与but连用。can.可能性（只用于现在式和过去式）be able to.可能性,成功地做（可用于各种时态）take a photograph of 拍的照片在他离开家之前，他给他的房子照了张照片。He took a photograph of his house before he left home.run into trouble = get into trouble 遇到麻烦，陷入困境每次他遇到困难了，他都向父母寻求帮助。Each time he ran into trouble, he asked his parents for help.,3、At o

11、ne point, it seemed certain that their plane would crash.at one point 在某一地方，在某一时刻（point也指时间上的某一点）他曾一度下决心要当个画家。 At one point, he made up his mind to become a painter.it为先行主语，真正的主语为that引导的从句。it作先行主语时经常与seem，appear，look等连用：现在似乎可以肯定会议将被推迟。 It now looks certain that the meeting is going to be put off.,4、

12、It could only get over the mountains if it rose to 10,000 feet.rise to 上升至5、The plane was then able to rise and it cleared the mountains by 400 feet.by表示“相差，以之差”的意思我晚了10分钟，没赶上火车。 I missed the train by ten minutes. 他比我小两岁。 He is younger than me by two years.,for there were no more mountains in sight.

13、 因为前面再没有山了。for表示“因为”。 in sight表示“在看得见的范围内”、“在可看见之处”：No man was in sight.一个人也看不见。,Can 和be able to的区别,can与be able to 用法上的区别口语中, can 与be able to在用法上既有相同的一方面, 又有不同的地方,这是应该引起注意的。当它们表示能力的时候，是同义的。如：He can speak two foreign languages.He is able to speak two foreign languages.,表示过去通过努力终于做成了某事要用be able to，而不能

14、用can。如： I was able to swim to the bank after the boat turned over.can 和be able to 都可以表示能力.can泛指一般的能力,而且只有两种形式,即:can, couldbe able to 则主要指具体做到了某件事的能力，其形式主要是靠be 发生变化，所以形式比can 多可以说：I can swim. I am able to swim. 但是不能说：All the people could escape from the big fire in time. 只能说：All the people were able t

15、o escape from the fire in time.,can能表猜测，be able to不能。can的这种用法主要用于疑问句和否定句。Somebody is knocking at the door. Who can it be?It cant be our teacher who is knocking at the door.其肯定形式是must be。如:It must be our teacher who is knocking at the door.,. be able to 后边接动词不定式表示一种实际情况时，其否定形式不是be not able to，而是canno

16、t。如：Were you able to catch the first bus yesterday morning?No, I couldnt.7. 一般说来, be able to 后边的动词不定式没有被动语态。如:Im sure he is able to correct his mistakes in grammar.不说: *Im sure his mistakes are able to be corrected by him.,Homework,1.听课文30分钟2.朗读背诵43课，3.抄写43课单词每个1遍,翻译1遍，默1遍完成课后43课课后练习4.听写第43课，错词51115.总结归纳can和be able to的用法,