Document

The Power of
Nature
Warming up and reading
From chan
Questions :
• Do you think the power of nature is
huge?
• Can you name some other natural
disaster? (Please work with your partners
and make a list of natural disasters which you
have known.)
earthquake
hurricane
/typhoon
tsunami
mud-rock flow
snowstorm
hailstorm
thunder/
lightning
sandstorm
flood
drought
volcanoeruption
What do you know about volcano?
Ash cloud/volcanic ash
Crater
Lava
Boiling rock erupts from the
crater;
the lava flows slowly down the
mountain.
Magma chamber
1.How is a volcano formed?
The rocks under the earth
becomes hotter and hotter and
erupted from the mountain.
2.Where is the most possible place
that a volcano may erupt?
Near the oceans.
Guess: what kind of things a
volcanologist might do. (Please work
with partners and write your guess down.)
Read through the passage quickly to
Unit 5
An Exciting Job
Fast reading
Read the text fast and answer the questions
1. What is the writer and does he
like his job?
He is a volcanologist
And he likes his job very much.
2. What is Mount Kilauea?
It is one of the most active
Volcano in Hawaii.
3. What is the volcanologist wearing
when getting close to the crater?
He is wearing white
protective suits that
covered his whole
body, helmets, big
boots and special
gloves, just like a
spaceman.
Careful-reading
• Read the passage carefully and answer:
• 1.Why is the author's job important?
I have the greatest
job in the world
Danger excites me and
makes me feel alive
Protect people
from the volcano
2. Read the third paragragh about
the first sight of volcano eruption
• What made the author realize that an
eruption occurred?
My bed
began shaking
A strange sound
My bed
room became
as bright as day
• What did the writer see and what did
he think of it?
Red hot lava was
fountaining hundreds
of metres into the air
An absolutely
fantastic sight
3. What caused the writer’s bedroom to become
as bright as day even though it was night?
The light was caused by the red-hot
rocks and gas that erupted from the volcano.
4. Why did the scientists have to get close to the
volcano after it began erupting?
The scientists needed to get samples of
the lava so they could study them.
5. Why was it difficult for the writer to walk
towards the edge of the crater?
The author was wearing special protective
clothing that made it difficult to walk.
Get the main idea of each paragraph
Para 1
The writer describes his job and its
importance.
The writer expresses his love for his job
Para 2 and why he loves it.
Para 3
The writer describes his first sight of a
volcano eruption.
Para 4
The writer describes his first closer look
at a volcano eruption.
Para 5
The writer states again his love for his
work and volcanoes.
Now listen to the radio carefully, and
choose the best answers.
1. What’s the main idea of the text?
A
A. Seeing the volcano with the volcanologist’s own eyes
B. Working outdoors
C. Working for the HVO
D. Helping other scientists
2. Did the writer experience an eruption ?
A. Yes
B. No
C. Certainly
D. I’m afraid not
A
3. What jobs does the writer do in the text?
C
A. Watching the volcano
B. Moving the people’s house
C. Collecting information about Mount Kilauea
D. Saving many lives
4. What natural disaster did you experience?
A. An earthquake
B. A hurricane
C. A volcano
D. never
D
Discussion:
Having learnt a little more about the
work of a volcanologist.
1. what skills should a volcanologist
have?
2. do you think it is an occupation you
would enjoy? Discuss your reasons
with others in your class.
Assignment (Homework)
1. Find out words, expressions
and sentences which you
think are useful, important or
difficult to understand.
2.Finish exercises in Learning
about language.(Ex 1, 2)
Do you want to know more
knowledge about Volcano?
volcano
• 火山爆发原因--------地球内部充满着炽热的岩浆。在极大
的压力下，岩浆便会从薄弱的地方冲破地壳，喷涌而出，
造成火山爆发。
• 分类------ 火山可分活火山、死火山和休眠火山。前面讲
到的坦博拉火山和夏威夷群岛上的火山，现在还在活动，
这就是活火山。死火山是指史前有过活动，但历史上无喷
发记载的火山。我国境内的600多座火山，大都是死火山。
有些火山在历史上有过活动的记载，但后来一直没有活动，
这种火山就称作休眠火山。休眠火山可能会突然“醒来”，
成为活火山。
• 后果----- 猛烈的火山爆发会吞噬、摧毁大片土地，把大批
生命、财产烧为灰烬。可是令人惊讶的是，火山所在地往
往是人烟稠密的地区，日本的那须火山和富士火山周围就
是这样。原来，火山喷发出来的火山灰是很好的天然肥料，
富士山地区的桑树长得特别好，有利于养蚕业；维苏威火
山地区则盛产葡萄。火山地区景象奇特，往往成为旅游胜
地。
• 预报----在人类能够控制火山活动之前，加强预报是防止
火山灾害的唯一办法。科学家对火山爆发问题的研究，常
常得益于动、植物的某种突然变化。许多动物往往在火山
爆发之前就纷纷逃离远去，似乎知识大祸即将临头。印度
尼西亚爪哇岛上有一种奇特的植物，在火山爆发之前会开
An extinct volcano
dormant volcano
An active volcano
Mount Vesuvius 维苏威火山
This mountain has erupted more
than 50 times since the eruption
in 79 A.D., when it buried
Pompeii and its sister city,
Herculaneum.
After Pompeii was buried and
lost to history, the volcano
continued to erupt every 100
years until about 1037 A.D.,
when it entered a 600-year
period of quiescence.
In 1631, the volcano killed an
additional 4000 unsuspecting
inhabitants.
Mount Kilauea基拉韦厄火山
It is Hawaii's youngest and yet
most active volcano. It first
erupted in January 1983 and has
been active ever since.
In the past 245 years there
have been 62 eruptions... That's
about an eruption every four
years.
Mt. Kilauea is a shield volcanothe largest types of volcanoes in
the world and have fluid lava and
are basically, just broad slopes.
2007-5-25 夏威夷：基拉韦厄火山喷发
2.What will be produced after the
eruption of volcano?
gas
liquid
vapour水蒸气,
carbon dioxide,
nitrogen(氮),
sulphur(硫磺), etc.
Lava(熔岩)
solid
bits of rock and
volcanic ash,
etc.
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