课件28张PPT。 Unit 5 The power of natureUnit 5 the power of natureWarming up and Reading a volcanic eruptionWhat is the topic of the video?A volcano is one of the greatest natural disasters. It causes a lot of damage.Volcanic eruption can cause fire and destroy everything in the path of lava, such as roads, buildings, wildlife and so on.Volcanic eruption can cause air pollution and alter the climate of the earth .
Many flights are cancelled due to the
ash cloud.What do you know about volcano?
Do you know how a volcano erupts?
Let’s have a quiz!
active volcanoHow many types of volcanoes are there on earth?dormant volcanoextinct volcanoA. 1
B. 2
C. 3C 2. Name these parts of the volcano.
Ash cloudLavaCratermolten rock erupts from the crater; The lava flows slowly down the mountain. 3.What will be produced after the eruption of volcano?
A. Lava
B. Volcanic ash
C. Bits of rock
D. fire A B C D Besides these, there are vapour, carbon dioxide, nitrogen(氮), sulphur(硫磺), and so on.4.Who will climb into a live volcano to measure the temperature of the boiling rock inside?Scientists, especially volcanologists!5. What do you think of volcanologists’ job?
dangerousinterestingchallengingtiringboringimportantmeaningfulReading
An Exciting JobIt is written by a volcanologist.1.Does the author love his job ?How do you know? Find out some words or phrases to support your idea.
2. Which mountain does the author study? Where is it?
Yes, he likes his job.
“the greatest job, never bored, danger excites me and makes me feel alive”Fast reading Mount KilaueaIt’s in Hawaii. Para 1: Para 2: Para 3: Para 4: Para 5:The author describes his first sight of a volcanic eruption.The author states again his love
for his work and volcanoes.The author describes his first closer look at a volcanic eruption.The author expresses his love for his job and why he loves it.The author describes his job and
its importance. Match each paragraph with its main ideacareful reading 2. Why is a volcanologist’s job important?Para. 1- Para. 2 1. What is the author’s main job?Collecting and evaluating information about Mount Kilauea.Helping other scientists to predict where lava from the volcano will flow next and how fast.Volcanologists study volcanoes so that they can warn people when the volcano is going to erupt and so save many lives.Para. 3Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?
What made the author realize that an eruption occurred?careful reading 1. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption ? Because no one lives near the top of Mount Kilauea.
Because the eruption is not powerful at all.
Because the lava flows slowly down the mountain and buries everything in its path.
Both A and C D 2.What made the
author realize that
an eruption
occurred ?my bed began shakinga strange
soundmy bedroom
became as bright as day.an absolutely
fantastic sightred hot lava was
fountaining hundreds of meters into the airPara. 4 What does the author mean by using ‘lucky’ in the sentence ‘I was lucky enough to have a much closer look at it’? (L30)
What is the volcanologist wearing when getting close to the crater?
3. Why did the scientists have to get close to the volcano after it began erupting?
careful reading 1. What does the author mean by using ‘lucky’ in the sentence ‘I was lucky enough to have a much closer look at it’?
A He felt 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 D 2. What is the volcanologist wearing when getting close to the crater?
3. Why did the scientists have to get close to the volcano after it began erupting?
He is wearing white protective suits that covered his whole body, helmets, big boots and special gloves, just like a spaceman.The scientists needed to collect some lava for later study.
Para. 5What does the author find impressive about volcanoes even after studying them for many years? The author is impressed by the beauty of the eruption and also by its potential to cause great damage.careful reading discussionAfter reading the passage, you may have a better understanding of the job as a volcanologist. 1.Would you like to be a volcanologist? Why or why not?
2.Are you suitable for this job?
3.What kind of person can be a volcanologist?(Discuss your reasons in a group of four.)cautious, enthusiastic, brave, smart, careful, calm, helpful, strong, determined, out-going, optimistic, unselfish, courageous, patient, healthy, passionate …What kind of person can be a volcanologist? A volcanologist who is… can…A volcanologist should …. because….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.HomeworkFind out words, expressions and sentences which you think are useful, important or difficult to understand.
Finish exercises in Learning about Language. (Ex. 1, 2)
Fill the proper words in the blank .
I have the _________ job in the world. I work _______as well as outside. What's more, I can meet different ______ people and travel to _________places. Though it’s ___________ I still enjoy it. My main job is to ________information about Mount Kilauea, which helps scientists _________where lava from the volcano will flow next and how fast. By doing this, we can _____many lives.greatestinsidelocalunusualdangerouscollectpredictsaveconsolidation I still remember my first sight of an _________. I heard a _________ sound and my bed was shaking, like a railway train passing my window. My bedroom became as _______as day. I rushed into the back garden, and saw red hot lava ____________hundreds of metres into the air. The next day I was _____ enough to have a closer look at it. Two scientists and I were sent to collect some lava for later_______. We were dropped as close as possible to the _______ that had been formed during the eruption.eruptionstrangebrightfountainingluckystudycrater To protect ourselves, we all had special clothes, which made us look like___________. It wasn’t very easy to walk in these clothes, and we slowly
______ ___ ___to the edge of the crater and looked down into the red, boiling center. Though I was a little afraid, I wanted to climb down into the______ to collect some lava. But this being my______ experience, I could only stayed at the top and watched the two scientists. It has been more than twenty years since I began to study volcanoes. I am just as _____________about my job as the day I first started it.spacemenmade our waycraterfirstenthusiastic
