Unit 5 The power of nature Period One Warming Up & Reading课件（50张PPT）

课件50张PPT。Unit 5 The Power of Nature 1.绝对的，完美的
2.绝对地，完美地
3.冒险，奇遇
4.担心，焦虑，渴望
5.不安的，忧虑的
6.灰，灰末
7.洗澡，游泳
8.使感到厌烦
9.取消，删去，撤销
10.勇气，胆量
11.不同的，多种多样的
12.多样性，多种多样
13.努力
14.（指火山）爆发，突然发生vi
15.火山爆发，战争等）爆发1.absolute
2.absolutely
3.adventure
4.anxiety
5.anxious
6.ash
7.bathe
8.bore
9.cancel
10.courage
11.diverse
12.diversity
13.effort
14.erupt
15.eruption16.评价，评估，估计
17.使兴奋，使激动
18.难以置信的，奇异的，极好的
19.泉水般地喷出源泉，喷泉
20.保证，担保
21.天堂，天国
22.飓风，风暴
23.给予深刻印象
24.给人深刻印象的
25.小说家16.evaluate
17.excite
18.fantastic
19.fountain
20.guarantee
21.heaven
22.hurricane
23.impress
24.impressive
25.novelist26.惊慌，恐慌
27.可能的/潜在的;潜能/可能性
28.珍贵的，贵重的
29.吞，咽，燕子
30.汗，出汗
31.摇晃，摇动，颤抖
32.台风
33.不幸的，倒霉的
34.不幸地
35.唯一的，独一无二的
36.火山26.panic
27.potential
28.precious
29.swallow
30.sweat
31.tremble
32.typhoon
33.unfortunate
34.unfortunately
35.unique
36.vocanoDo you remember what happened on Dec 26, 2004?Tsunami
[tsu'nɑ:mi]
n. ?海啸 Do you know any other natural disasters ?

earthquakefloodsdroughtTyphoon/HurricaneSandstormthunder/ lightninghurricane /typhoontornado/cyclonevolcano-eruptiontyphoon sandstormfloodearthquaketornadosnowstormtsunamilandslide 泥石流cyclone 旋风hailstorm 冰雹volcanohurricane The power of natureWork with your partners and make a list of natural disasters .2. What do you feel when you see those
pictures?
Have you ever experienced one?
Share you experience and feelings. 3.Have you ever seen a volcano? gasliquidsolidLava(熔岩)vapour水蒸气,
carbon dioxide, nitrogen(氮),sulphur(硫磺), etc.bits of rock and volcanic ash, etc.Can you guess what will be produced after the eruption of volcano?What do you know about volcano?
Do you know how a volcano erupts?volcano-eruptionBoiling rock erupts from the crater;
the lava flows slowly down the mountain. Magma chamber
岩浆室Lava熔岩Crater火山口Ash cloud/volcanic ashMore informationMore about the volcano1. How is a volcano formed?The rocks under the earth become hotter and hotter and erupt from the mountain. Volcano form when hot material from below rises and leaks into the crust(地壳）. The hot material called magma（岩浆）, rising from lower ground, gathers in a reservoir called the magma chamber（岩浆室）. Eventually , but not always, the magma erupts onto the surface and form lava（熔岩. Strong earthquakes accompany rising lava, and the volcano may swell（膨胀） just before an eruption.Background knowledgeNear the oceans.Where is most possible for a volcano
to erupt?An extinct volcano
死火山Haleakala Crater, the largest dormant volcano in the world
Maui, Hawaii
An active volcano3. What types of volcanoes do you know?dormant volcano
休眠火山Dormant volcanoExtinct volcanoMore pictures about volcanoPlease look at the diagram below.
It shows a volcano erupting.Some powerful natural forces we can think of are fire, flood, earthquake, typhoon/cyclone/hurricane, snowstorm, electrical storm, tsunami/ground sea and so on.Ash cloudCraterValcano火山Magma chamberLava
flowWhat qualities are needed for a volcanologist?
Are you suitable for being a volcanologist ?
Answer “yes”or “no” to the following questions.Predicting
(预测) What might be talked about in this text?What is the writer?
When did he first see an eruption? How did it look like?
What was he wearing when getting close to the crater? And what was the result?Skim the text and answer the following questionsWhat is the writer?
When did he first see an eruption? How did it look like?
He is a volcanologist working for the Hawaiian Volcano Observatory. He mainly collects information about Mount Kilauea.It was in the second week after he arrived in Hawaii. It was very bright although it was night. Red lava fountained hundreds of meters into the air and it was a fantastic sight.3. What was he wearing when getting close to the crater? And what was the result?He was wearing white protective suits that covered his whole body, helmets, big boots and special gloves, just like a spaceman. As a result, it made him difficult to walk.1.What’s the main topic of the article?
2. Why is a volcanologist’s job important?
3. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?
4. Why did the scientists have to get close to the volcano after it began erupting?
5. What does the writer find impressive about volcanoes even after studying them for 20 years?
Scan the text and answer the following questionsWhat’s the main topic of the article?The writer expressed his love for his job as a volcanologist and told us one of his unusual experience in Mount Kilauea,Hawaii.2.Why is the author's job important?I have the greatest
job in the worldDanger excites me and
makes me feel alive
Protect people
from the volcano
3. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?
The lava flows down the mountain and can cover up or burn villages in its path. The rocks that erupt from the volcano usually don’t damage anything because no one lives near the crater.
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. What does the writer find impressive about volcanoes even after studying them for 20 years?
The author is impressed by the beauty of the eruption and also by its potential to cause great destruction.What made the author realize that an eruption occurred?His bed
began shakingA strange soundHis bedroom became
as bright as dayRed hot lava was fountaining hundreds of metres into the airAn absolutely fantastic sightMore questionsWhat did the scientists do after the eruption?Put on white protective suits helmets, big bootsDropped
as close as
possible to the craterSlowly made
our way to the
edge of the craterLooked
down into
the red, boiling centreClimbed down
into the crater to collect some lavaGet the main idea of each paragraph.
Paragraph 1:
Paragraph 2:
Paragraph 3:
Paragraph 4:
Paragraph 5:
The writer expresses his love for his job and why he loves it.The writer describes his job and its importance.The writer describes his first sight of a volcano eruption.The writer describes his first closer look at a volcano eruption.The writer states again his love for his work and volcanoes.Part 1(Para 1-2)

Part 2(Para 3-4)

Part 3(Para 5)

The writer’s job and its importance as a volcanologist.The writer’s experience of his first sight of watching the volcano eruptionThe reasons for the writer’s enthusiasm about his job (His love for his job and volcanoes)Find out the main idea of each part What are the main ideas of each part. Boiling rock which erupts from the volcano and crashes back to earth causes less damage.
B. the lava that flows slowly down the
mountain causes far more damage.
C. the eruption is much more exciting to
watch
D. There had been an eruption in the side of
the mountainWhat’s the main idea of para.3 ?Finish the comprehension multiple-choicesThe writer doesn’t mind the occasional danger of his job because ________.A. He travels to unusual places and meets
interesting people from all over the world
B. He likes the different ways of working
C. He thinks his job the most important
D. He is excited about dangers and feels aliveAs a result of the volcanologist’s work,
_________.A. other scientists predict the progress of lava from the volcano
B. many people have been warned to leave their homes
C. the eruption causes less damage
D. the eruption may be prevented breaking outWhy did the volcanologist run out of the house into the back garden ?A. Because his bed began shaking.
B. Because his bedroom suddenly became as bright as day.
C. Because he thought there was an earth-quake in Hawaii.
D. Because he wanted to collect information about the eruption.The light was caused by the red-hot rocks and gas that erupted from the volcano.What does the writer mean by using “lucky” in the sentence “ I was lucky enough to have a much closer look at it. ” ?A.He left much safer on the top while the
other two scientists climbed down into the crater.
B.It was his first sight of an eruption.
C.It was the first time for him to watch the
crater.
D.both B and C.
1. The local clubs are _____________to interest more young people.
2. If you ________ her work _____his, you’ll find hers is much better.
3. Her health once__________good ______rather weak.
4. After having a good rest,we_____________to the next mountain.
5. She ____________ the letter and tore it into
pieces.making an effortcomparewithvaried fromtomade our wayglanced throughFill in the blanks as quickly as you canto complete the sentences. Are you suitable for the job? What kind of person can be a volcanologist?
I think:
He must be brave enough because he must climb into a live volcano to take the temperature of the boiling rock inside.
Interest is the most important. He should show great interest in studying rocks and volcanoes.
He should be interested in travelling to unusual places and like adventure in his life.
He should enjoy working outside because of a lot of work need to be done outdoors.Summary:
Suppose you are a reporter of the 21st Century, and you are interview the writer. Work in pairs and make up a dialogue according to your understanding of the passage.Dialogue production (5m)