An Exciting Job 李娜

Unit5 The power of nature

An Exciting Job  李娜

Learning aims

1.Knowledge aims:

1)To help students learn to read a text about nature power get grasp the main idea.

2)To master some important words and phares

2.Ability aims:

Develop the students reading ability and let them learn to use some reading strategies such as skimming ,scanning ,and so on. 3.Emotional aims:

1)Stimulate the students’ love for nature by getting them to know V olcano

2)Let students realize the importance of protecting nature.

StepⅠBackground information

Kilauea is unique among the world’s volcano e s in that it’s not only one of the most active volcanoes in the world, but it puts out, probably, the highest volume per year of lava of any volcano on the planet. On average, over a thousand gallons of lava come streaming, gushing or oozing out of Kilauea every second, of every day of the year. Kilauea rises just over 4 thousand feet above sea level that’s taller than four Eiffel towers stacked on top of each other but, there’s a lot more depth to Kilauea than meets

the eye. The impressive thing about Kilauea is what we don’t see of it, and there’s about another 18,000 feet of this volcano that goes down below sea level to the ocean floor. So it’s really among one of the largest volcanoes in the world as well.

Kilauea volcano is also one of the most powerful. With temperatures hot enough to melt rock at over 1,500 degrees, Kilauea has the power to do some pretty serious damage. It’s very very destructive to things that already exist on the island of Hawaii, such as trees, wildlife, buildings, anything in the path of this lava will be completely destroyed. Partly because it gets run over by the lava, but most importantly because it’s so hot that it sets everything in its path on fire.

But amazingly, out of Kil auea’s destruction comes creation. What looks like a process of destruction to us as human beings is really the process of island building and growth. And while the rich volcanic soil generates new plant life, the lava oozing into the Pacific also continues to build the island.

Over the last two decades Kilauea has exploded with 55 major eruptions. V olcanologist Mick Kalber said: “The high found eruptions of Kilauea were some of the most amazing things I’ve seen in my life. Fountains going up in the air a thousand, fifteen hundred feet even more. These booms are so loud and the tremendous explosions going up in the air are just so spectacular it takes your breath away.” The lava released in

a major eruption creates searing flows that stretches for miles. “Standing close to a river of lava is really unparalleled in any experience I’ve ever had. It’s this feeling of being alive. Of being close to the earth itself, of feeling the life energy of the planet.”Kalber said. ”

Kilauea is a natural wonder ’cause it’s a place where you can see active eruption taking place, new land being formed. And you can hear actually. You can hear the flows as they’re coming up and the surface cools, it crackles. You can actually approach this volcano, and watch its grandeur and its beauty without getting killed. And that’s, that’s unusual.

For helping to build paradise, Kilauea, one of the world’s most active volcanoes blasts onto our list at number 10.

StepⅡlook at the picture on Page 33 and try to learn something about volcanoes

Step ⅢRecite words and expressions

Step ⅣTranslation

1.Having collected and evaluated the information, I help other scientists

to predict where lava from the volcano will flow next and how fast.

___________________________________________________________ ___________________________________________________________ 2.Having studied volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.

课外阅读材料:

在世界上众多的火山当中,基拉韦厄火山显得十分独特。这不仅因为它是世界上最活跃的火山之一,而且它每年喷发出的火山熔岩量也可能是地球上所有火山中最高的。基拉韦厄火山无时无刻不在活动之中,平均每秒钟喷涌流淌出1000多加仑的炽热熔岩。基拉韦厄火山的海拔高度超过4000英尺,比4个艾菲尔铁塔叠加起来还要高。但火山口下面却更是深不可测。基拉韦厄火山的独特之处是我们看不到的那一部分,这部分深达18000多英尺,从海平面以下伸延至海底。因此,基拉韦厄火山也是世界上最为庞大的火山之一。

基拉韦厄火山还是最具威力的火山之一,其温度高达1500度以上,足以将岩石熔化,造成极其严重的破坏。它会对夏威夷岛上现有的任何东西如树木、野生生物、建筑产生令人难以想像的破坏。火山熔岩流经的一切都将被彻底毁灭。这不仅因为熔岩的吞噬,最主要的是熔岩的温度很高,能沿途引起大火。

然而,令人惊异的是,基拉韦厄火山的破坏过程也是创造的过程。对我们人类而言的这种破坏过程,实际上也是岛屿的形成与发展过程。肥沃的火山灰上长出了新的植物,而涌入太平洋的熔岩也在不断营造这座岛屿。

基拉韦厄火山是一个自然奇观,因为在这里,你可以看到活生生的火山喷发,以及新陆地的形成;你能真切地听到它所发出的阵阵轰鸣、岩流来时的声音及其表面冷却过程中的噼啪声;你还可以亲临观看火山喷发的壮丽景象,无需担心有性命之虞。这确是一种不同寻常的经历。

作为造就夏威夷这个“人间天堂”的功臣,世界上最活跃的火山之一基拉韦厄火山,在十大自然奇观中名列第十

Unit5 The power of nature

教师寄语:Y ou have to believe in yourself. That is the secret of success.---------Charles Chaplin

Learning aims

1.Knowledge aims:

1)To help students learn to read a text about nature power and grasp the main idea of the text.

2)To master some important words and phares

2.Ability aims:

To develop the students reading ability and let them learn to use some reading strategies such as skimming ,scanning and so on. 3.Emotional aims:

1)To s timulate the students’ love for nature by getting them to know volcano

2)To let students realize the importance of protecting nature.

StepⅠLeading—in

1.Can you name some natural diasters?

2.Have you ever seen a volcano?

StepⅡFast reading-----skim to finish the following tasks.

Tip: Read the text quickly and don’t expect to understand every sentence.

Task1: Look through this passage and divide it into three parts

Part 1(Para____)

Part 2(Para ____)

Part 3(Para ___)

Task2: try to find out the main ideas of each part.

Part 1 A:The writer’s experience of watching the volcanic eruption Part 2 B:The writer’s job and its importance

Part 3 C: The reasons for the writer’s enthusiasm about his job. Step ⅢCareful reading

Read the passage carefully again and and answer these questions using complete sentences.

1. Where is Mount Kilauea?

2. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?

3. What caused the writer’s bedroom to become as bright as day even though it was night?

4. Why was it difficult for the writer to walk towards the edge of the crater?

5. What does the writer find impressive about volcanoes even after studying them for many years?

Step ⅣDiscussion

Have you learned a little more about the work of a volcanologist,do you think it is an occupation you would enjoy? Give your reasons.

GroupA Group B

For Against

I like the job. I don’t like the job Step ⅤLanguage points

1.appoint vt.

【课本原句】I _______ _______ ________ a volcanologist working for the HVO twenty years ago.作为一名火山学家,我被派到……

⑴任命,委派用法:appoint sb. (to be)/as

appoint sb. to do sth.

They_______ him_____ captain of the English team.

他们任命他为英格兰队队长。

(2)约定,指定(时间,地点)用法:appoint sth. (for sth.)

They _________ _________ _________ as the time for the meeting.

他们将会议时间定在十点。

2.potential

【课本原句】I am still amazed at their beauty___ ______ ______ ______ ______ to cause great damage.

⑴adj.可能的,潜在的(短语)潜在的危险_____ _________

(2)n.潜力,潜能have the potential to do sth.

Step ⅥQuiz

Step ⅦConsolidation

Today we learnt a passage titled An Exciting Job.The writer’s job is to

travel to 1 places and work 2 people from all over the world. Sometimes working outdoors and sometimes using scientific 3 . Exactly speaking, The writer is 4 as a volcanologist working for the HVO. By collecting and 5 the information about Mount Kilauea, he helps other scientists to predict where lava from the volcano will flow next and how 6 .

He will never forget his first sight of the eruption. He was fast asleep when suddenly his bed began 7 and he heard a trange sound. Having 8 quite a few earthquakes already, he didn’t 9 much notice at first. It was an 10 fantastic sight. After the eruption, they had white protective 11 that covered their whole body . they slowly 12 their way to the edge of the crater to collect some lava for later study.

The writer is as 13 about his job as the day he first started. He is still amazed at the volcanoes’beauty as well as their 14 to cause great damage.

ⅧSummary

ⅨHomewor--------writing

We have learned more about the work of a volcanologist, some students think it is an occupation they would enjoy,.because ……..but others…….please give your reasons.

我们班在学完这篇课文后对火山学家这个职业展开了讨某论:

一些同学认为:

火山学家的工作很重要也很有趣。他们所搜集的信息对我们人类研究地球很有帮助。

另一些同学认为:

火山学家的工作过于危险。由于火山附近很少有人居住,而火山的爆发又不能够预测,所以他们的工作没有什么意义。

Show the video of volcano eruption.

We can enjoy the exciting sight of volcano eruption. But volcano eruption can also bring us a lot of damage. So we need volcanologists to study volc ano and reduce its damage to us. Let’s learn something about volcanologists in the text.

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