新概念第二册第43课

1、Lesson 43Lesson 43over the south PoLeover the south PoLe F Four oceans in the world the Pacific Oceanthe Indian Oceanthe Arctic OceanAthe AtlanticOceanNew words and expressionsNew words and expressions 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.

2、 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. 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. 无尽的无尽的 plain n. plain n. 平原平原First 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

3、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.Ask and answer:1. When did the man successfully fly over the South Pole for the first time ?2.Who succ

4、essfully 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?1.The American explorer, R. E. Byrd, successfully flew over the North Pole first time.2.

5、 Byrd and his were able to bake a lot of photographs of the mountains that lay below.3.The plane could only get over the mountains if it rose to 10,000 miles.4. After Byrd ordered his men to throw out two heavy food sacks, the plane was able to rise. In 1929, three years after his flight over the No

6、rth 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 wo

7、uld 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 feet. Byrd now knew that he would be able to reach the South Pole which was 300 miles away, f

8、or there were no more mountains in sight. The aircraft was able to fly over the endless white plains without difficulty. can “can is 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 impo

9、ssibility.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 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 abilit

10、y 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

11、 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 C

12、orrect can 和和be able to的区别的区别 can与与be able to 用法上的区别用法上的区别 口语中口语中, can 与与be able to在用法上既有相同的在用法上既有相同的一方面一方面, 又有不同的地方又有不同的地方,这是应该引起注意这是应该引起注意的。当它们表示能力的时候，是同义的。如：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表示过去通过努力终于做成了某事要用be abl

13、e to，而不能用而不能用can。如：。如： I was able to swim to the bank after the boat turned over. can 和和be able to 都可以表示能力都可以表示能力.can泛指一般的能泛指一般的能力力,而且只有两种形式而且只有两种形式,即即:can, could be able to 则主要指具体做到了某件事的能力，其则主要指具体做到了某件事的能力，其形式主要是靠形式主要是靠be 发生变化，所以形式比发生变化，所以形式比can 多可多可以说：以说： I can swim. I am able to swim. 但是不能说：但是不能说

14、： All the people could escape from the big fire in time. 只能说：只能说： All the people were able to escape from the fire in time. can能表猜测，能表猜测，be able to不能。不能。can的这种的这种用法主要用于疑问句和否定句。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. 其肯定形式是其肯

15、定形式是must be。如。如: It must be our teacher who is knocking at the door.Sum up the language points Phrases 1.能做某事能做某事:be able to 2.飞越飞越:flight over = fly over 3.第一次第一次:for the first time 4.首先首先:at first 5.拍照拍照:take a photograph = take a picture 6.大量的大量的:a great many of 7.陷入困境陷入困境:run into trouble = get

16、into trouble 8.在某一个地方在某一个地方:at one point 9.似乎肯定似乎肯定:It seems certain that 10.丢弃丢弃:throw out 11.在视线中在视线中:in sight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19291929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

17、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！1.美国探险家美国探险家 RE伯德在

18、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次次飞越了南极。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的的同位语，作插入性的补充说明；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”，this time, last time, next time, another time, each time, for the last tim

19、e等：等： 我最后一次提醒你，如果你不快点，你就会赶不上火车的。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。下次你见到他的时候，把这些照片给他。 Give him these photos next time you see him. 2. 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境。片，但他们很快就陷

20、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 his hous

21、e 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。3.在有个地方，飞机似乎肯定要坠毁了。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