资源简介

(共36张PPT)
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What do you know about the South Pole
penguins
iceberg
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美国探险家理查德·伊夫林·伯德 (Richard Evelyn Byrd)是一名经历了一战的美国海军飞行员。一战后，他发明了空中六分仪和风速修正仪，成为了当时世界上领航水平最强的人。1926年5月9日，在驾驶“约瑟芬·福特号”飞机历经15.5小时后，伯德宣布自己飞越了北极，成为“人类（差点儿）飞越北极第一人”。1929年11月28日，伯徳和另外两人前往南极，并在11月29日返航，耗时19小时，成为人类飞越南极第一人，回国后被授予海军少将军衔。
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他的一生曾5次率队进行南极探险，绘制了超过 500,000 平方英里的南极大陆地图（几乎可以说南极地图的绝大部分都是他带人绘制的），期间甚至创造了独自一人在南极待了5个月，熬过了南极冬天－50～－60℃的壮举（获救时已经冻伤，并且遭遇一氧化碳中毒，奄奄一息，之后他把这段经历写成了一本书：《独处》）
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Lesson 43
Over the south pole
飞越南极
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pole 1. 极
Pole Star 北极星
the South Pole 南极；
the North Pole 北极
2.电极，磁极
the positive pole
the negative pole
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flight n. 飞行 航班
eg. All flights are cancelled because of the fog.
fly v. 飞
fly ----flew----flown
fly n 苍蝇
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explorer n. 探险家, 探测者, 探测器
explore v.探险, 探测, 探究
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,没有生命保障)
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lie (lay-lain)
① vi. 处于,位于(+地点)
The town lies to the east of London.
② vi. 躺，（平）卧
stay in bed = lie in bed
③ vt. 撒谎
You lied. = You lied to me.
liar n. 骗子
④ n.谎言
tell a lie 撒谎
a white lie 善意的谎言
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lay （laid,laid）
① vt. 放,放置
lay the table 摆放餐桌
② vt. 下蛋, 产卵
lay an egg 下一个蛋
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★seem v. 似乎，看起来
seem + as if 看起来似乎……
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 be
He seems to be rich.
seem that… 看起来似乎……
It seems that he is rich.
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clear v. 越过
(凌空、不接触地)越过, 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.
clear up 天空放晴
clear away 消除
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the south pole 南极
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flight飞行
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explorer 探险家
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sack 袋子
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clear 越过
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endless plain
Watch the video and answer
the following question
-How was the plane able to clear the mountains
Language Points
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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.
1) for the first time 第一次
this time，last time，next time，another time，each time，for the last time
同位语
同位语
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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.
成功地做
许多
遇到麻烦，陷入困境
1) take a photograph of… 拍……的照片
他给他的房子照了张照片。
He took a photograph of his house.
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.
一开始
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At one point, it seemed certain that their plane would crash.
1) at one point 在某一地方
point也指时间上的某一点, 在某一时刻
eg. 他曾一度下决心要当个画家。
At one point, he made up his mind to become a painter.
2) it为先行主语，真正的主语为that引导的从句。
eg .会议似乎肯定将被推迟。
It seems certain that the meeting is going to be put off.
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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.
1) rise to … 上升至……
2) by表示“相差，以……之差”
eg. 我晚了10分钟，没赶上火车。
I missed the train by ten minutes.
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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.
定语从句
“因为”
“在视野之内”
No man was in sight.
一个人也看不见。
Key structures
关键句型
can / be able to
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1.can和could
can和could都可以表示“请求允许做某事”，can比较生硬，用于和自己同等的人或是熟悉的朋友。而could相对比较客气，显得更加礼貌，同时也反映出请求者的犹豫不决。
Can I use your telephone
Could I use your telephone
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2. can和be able to
can和be able to都可以解释为“能够、可以”。可以表示“有能力来做某事、有时间来做某事，有办法来完成某事”等等。
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can通常用于现在时和过去时
be able to可以用于更多时态
He will come if he can.
=He will come if he is able to.
I can see you tomorrow.
＝I’ll be able to see you tomorrow.
（将来时使用will be able to结构）
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I couldn’t understand him.
=I wasn’t able to understand him.
（过去时使用was/were able to结构）
当我们要表示一个动作在过去成功的完成的时候，我们必须使用was able to，而不能使用could。
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以下句子中不能用could
Special Difficulties
难点
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at last
at home
at once
at present
at times
at a loss
at first
Multiple choice questions
1-6 bbaadd
7-10 accdac
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