资源简介

(共20张PPT)
Reading & Vocabulary
DEEP SOUTH
Antarctica is a continent at the bottom of the world. Most of Antarctica is covered in ice. Only a few scientists live there. Antarctica is the highest, the driest, the coldest and the remotest place on the Earth.
Background Information
1.Vocabulary
Finish No 3 and No 4
2.Fast reading to finish No.1 :choose a heading for each paragraph
3. Read the text carefully to finish No.2 on P2
Language Points
1. With annual rainfall close to zero, Antarctica is technically a desert.
Part One: Key Expressions:
with的复合结构作原因状语。“每年的降水量接近为零”
2. ____ a frozen state 处于冰冻状态
in a good /bad state
in
in good /bad condition 处于良好／糟糕的状态
3. On average it is two kilometers thick, but in some places it reaches a depth of five kilometers.
(南极洲)冰层平均厚度为2，000米，但某些地方厚度可以达到5，000米。
The rope is two meters long.
The well is 12 meters deep.
It is a 12-meter-long rope.
5. As a result, it has become a window on the past, and can give researchers lots of useful information.
因此，它已经变成人们了解过去的窗口，可为研究者提供大量有用的信息。
window 窗户，在此引申为“获得信息的渠道。
International news broadcasts provide a window on the world.
4. adapt to its extreme conditions
6. Since most Antarctic rocks are dark in colour, they stand out against the white background and are easy to identify and collect.
因为南极洲的绝大多数岩石是深色的，它们在白色冰雪的背景映衬下格外显眼，也就易于识别和搜集。
The red flag stood against the blue sky.
7. nature reserve 自然保护区
8. prevent the commercial and military use of the continent.
9. in particular
10. keep Antarctica free from…
11. aim to do 旨在..;目的是
Part Two: 课文非谓语动词再现
1. _________(cover) about 14 million square kilometers around the South Pole, it is the fifth largest continent in the world.
Para One :
2. A high mountain range, the Trans-Antarctica range, runs from east to west, _________(cut) the continent in two.
Covering
cutting
现在分词作状语
3. Strong winds _________(drive) by gravity blow from the pole to the coastline, while other winds blow round the coast.
driven
Para Three:
4. Gases and minerals , in the form of volcanic dust ________(trap) in the ice, can tell us a lot about what the world’s climate was like in the past
trapped
过去分词作后置定语
（
）
（
）
Para Five:
5. In 1961, a treaty ________(sign) by 12 countries, including Britain, France, and the USA, made Antarctica the world’s biggest nature reserve.
signed
6. Today countries __________(represent) 80% of the world’s population have signed the treaty.
representing
（ ）
（
）
过去分词作后置定语，修饰treaty
现在分词作后置定语，修饰countries
Part Three: Key Sentence Structures:
*Antarctica was the last continent to be discovered.
*A Norwegian called Carstens Borchgrevink became the first man to set foot on the Antarctica mainland.
固定结构： the+序数词/ 最高级 +n+___________
不定式
莫言是中国第一个赢得诺贝尔文学奖的作家。
Mo Yan is the first author to win the Nobel Prize in Literature in China.
2. Not until the late 18th century did the British explorer James Cook cross the Antarctica Circle.
not until 置于句首，主句用部分倒装
把该句改为下not until 的强调句句型。
It was not until the late 18th century that the British explorer James Cook crossed the Antarctica Circle.
翻译： 直到Alex大学毕业了他才意识到学习英语的重要性。（三种表达方式）
*Alex didn’t realize the importance of learning English until he graduated from the university.
*Not until Alex graduated from the university did he realize the importance of learning English.
*It was not until Alex graduated from the university that he realized the importance of learning English.
3.The aim of the treaty is to prevent the commercial and military use of the continent.
4.In particular, it aims to keep Antarctica free from nuclear tests and radioactive waste;to promote international scientific projects; and to end arguments about who owns the land.
Revision of phrases
1.hold 90% of the ice
2.in a froze state
3.on average
4.reach a depth of ...
5.adapt to its extreme
conditions
6.(a) lack of rainfall
7.be made up of ...
占有90%的冰
冰冻状态
平均地
达到……的深度
适应极端条件
降雨量不足
由……组成
1.in the form of
2. be/get trapped in
3.contain evidence
4. stand out
5. balance land
6.set foot on the mainland
以……形式
被困于……
包含证据
突出，杰出
平衡陆地
踏上大陆
the nature reserve
in particular
aim to do;aim at doing
the symbol of man's efforts
自然保护区
尤其
旨在
人类努力的象征

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