课件51张PPT。 Unit 5 The power of natureUnit 5 The power of natureNature’s power…brainstormearthquakefloodtsunamitornado
(飓风)Typhoon/hurricanesnow slidedroughtGuessing GameWho am I?natural disastermountainfirevolcanoHave you ever
seen a volcano?Step Ⅱ Lead-in volcano-eruptionCollect and evaluate
information about
volcanoes. Volcanologist = volcano + log(y) + istDo you want to be a
volcanologist?An Exciting JobStep Ⅲ ReadingPart 1(Para 1-2)
Part 2(Para 3-4)
Part 3(Para 5) B:The writer’s job and its importance A:The writer’s experience of watching the volcanic eruptionC: The reasons for the writer’s enthusiasm about his job.Look through this passage and try to find out the main ideas of each part.Part one (Para. 1- Para. 2) 1.Why is a volcanologist’s job important?
It can warn people when the volcano is going to erupt and save many lives.Careful reading2.Where is Mount Kilauea?Mount Kilauea is in Hawaii.Part two (Para. 3- Para. 4) Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?
The lava can cover up or burn villages in its path. The rocks from the volcano usually don’t damage anything because no one lives near the crater.
More about the volcano1. How is a volcano formed?The rocks under the earth become hotter and hotter and erupt from the mountain.Please look at the diagram below.
It shows a volcano erupting.volcano eruptionBoiling rock erupts from the crater;
the lava flows slowly down the mountain. Magma chamberLavaCraterAsh cloud/volcanic ash岩浆房 2.What made the author realize that an eruption occurred?My bed
began shakingA strange soundMy bed room became
as bright as dayRed hot lava was fountaining hundreds of metres into the airAn absolutely fantastic sightVolcanoThe Kilauea volcano in Hawaii is perhaps the most active volcano in the world; it is recorded that there’s an eruption almost every four years.2004年6月2日,夏威夷的基拉韦厄活火山(Kilauea caldera)喷出熔岩。 2008年3月18日,夏威夷基拉韦厄(Kilauea)火山喷发,火山灰从出口向外喷散。火山喷发产生的岩屑散布于方圆30公顷,一处深受游客喜爱的观景台也受到岩屑的影响。
这是海拔1277米的基拉韦厄火山主火山口自从1924年以来的首次喷发。 2008年6月17日智利南部柴滕火山爆发。火山喷发出浓重的烟尘,并伴有隆隆的地动声,同时出现了两个新火山口。这座火山从5月2日开始喷发,已迫使4500名居民从柴滕火山附近的一座小村庄撤出。从布兰科(Blanco)河中溢出的水已经对这个村子造成严重破坏,由于有大量火山灰落入河中,河水变得非常粘稠。2008年6月6日,位于印度尼西亚米纳哈萨半岛上的索普坦火山喷出滚滚浓烟。索普坦火山当天开始喷发浓烟和火山灰,高度达2到4公里。 Part three (Para. 5) What does the writer find impressive even after studying volcanoes for more than twenty years? The author is impressed by the beauty of the eruption and also by its potential to cause great damage. 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.1.What’s the main idea of para.3 ?C. The eruption is much more exciting
to watch.
D. There had been an eruption in the
side of the mountain.2. The 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
alive3.As a result of the volcanologist’
work, _________. 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 outA. Because his bed began shaking.
B. Because his bedroom suddenly became as bright as day.
C. Because he thought there was an
earthquake in Hawaii.
D. Because he wanted to collect
information about the eruption.4.Why did the volcanologist's run out of the house into the back garden? 5. 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.6. What does the word “alive” mean in
the sentence “... danger excites me and
makes me feel alive”?
Living or not dead.
B. Active or lively.
C. Continuing.
D. Healthy.7. Why did the writer put on special
clothes to look at the crater?
Because he wanted to take some
special photos.
B. Because he was concerned about his
safety.
C. Because the other two scientists asked
him to.
D. Because he wanted to climb down into
the crater.Near the oceans. 1. Where is it most possible for a
volcano to erupt?Haleakala Crater, the largest dormant volcano in the world
Maui, HawaiiAn active volcano2. What types of volcanoes do you know?A dormant volcanoAn extinct volcano休眠火山 Summary1.The main idea of this passage.
Today, we learnt a passage written by a volcanologist. He describe his work and his first experience of seeing the eruption. He loves his work very much. 2.Language points:
(1)Important words and phrases:
appoint . evaluate . absolutely . suit .
make one’s way. potential.
(2)Important sentences:
a. I was about to go back to sleep when suddenly my bedroom became as bright as day.
b. The other two climbed down into the crater to collect some lava for later study, but this being my first experience ,I stayed at the top and watched them.
Do you like the job?知能提升演练1.She is honest and trustworthy .I think it’s ___ no business of hers.
A . absolutely B. possibly C. unfortunately D. desperately
答案:A
2. We don’t want to ___ him as chairman of the meeting .He is not fit for the position.
A. consider B. pick C. refer D. appoint
答案:D3.—Shall we go there by bus ?
---That __ me fine. Thank you.
A. fits B. matches C. satisfies D. suits
答案:D
4.Because her family was poor, she __her way through college, like washing dishes in the restaurant.
A. made B. worked C. felt D. lost
答案:B
5.Although her ability in art has not yet developed, she has great __as an artist.
A. success B. potential C. victory
D. possibility
答案:B
6.In this city, traditional beliefs__a modern urban lifestyle.
A. go alongside B. go down with C. go by
D. go in for
答案:A
7.The factory is equipped __modern machinery and uses the recent techniques.
A. with B. on C. by D. into
答案:A
8.Upon reaching an __age, children are encouraged, but not forced, to“ leave the nest”.
A. appropriate B. potential C. permanent
D. automatic
答案:A
9.A child has __trust in his mother.
A. complete B. perfect C. absolute
D. thorough
答案:C
10.The meeting ___,they went home.
A. was over B. has over C. is over
D. being over
答案:D
Homework Writing: 80 words (choose one of them)
1).tell your feeling of the power of nature
2) tell whether you will enjoy working as a volcanologist
thank you!