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1、Unit 5 Unit 5 warming up and readingHave you ever considered how weak humans are compared with volcanohurricane or earthquake?Can you list some natural disasters?earthquakeflooddroughtthunderstormtornadotsunamihurricane /typhoonsandstormsnowstormlandslide山体滑坡山体滑坡 mud-rock flow泥石流volcano-eruptionvolc
2、ano-eruptionGet to know about 火山灰火山灰火山口火山口岩浆岩浆岩浆流岩浆流 The rocks under the earth become _and finally _from the mountain.How is a volcano formed?hotter and hottereruptJoints between the continents.Often near the oceans.Where is most possible for a volcano to erupt?extinct volcano(=one that is no longer
3、 active at all)dormant volcano(=one that is not active at the moment)active volcano(=one that may erupt at any time)What types of volcanoes do you know?Vesuvius volcanoIn August of AD 79,Mount Vesuvius erupted.The entire of the mountain exploded,and a huge black cloud rose into the air.Soon stones a
4、nd hot ash began to fall on Pompeii.When the eruption ended two days later,Pompeii was buried under 20 feet of stones and ashes.Almost all the people were dead.Pompeii,vlknldst Someone who study volcanoes is calledCollect and evaluate information about volcanoes.What kind of things might a volcanolo
5、gist do?Read the passage An Exciting Job quickly and try to get the main idea of the passage.Fast readingWhat is the main idea of the passage?A.An eruption occurred in Hawaii.B.A volcanologists job is exciting.C.A volcanologists exciting job and his first sight of an eruption.D.A sight of an eruptio
6、n is horrible.C C Part 1(Para 1-2)Part 2(Para 3-4)Part 3(Para 5)The writers job and its importance The writers experience of watching the volcanic eruptionThe reasons for the writers enthusiasm about his job.Skimming the text and try to find out main ideas of each part.Part 1(Para 12)1)The writer do
7、esnt mind the occasional danger of his job because _.A.He travels to unusual places and meets interesting people from all over the worldB.He likes the different ways of workingC.He thinks his job the most importantD.He is excited about dangers and feels alive.2)Where is Mount Kilauea?Mount Kilauea i
8、s in Hawaii.D D 3).To be specific,whats the job of the writer?A Collecting information for database about Mount KilaueaB Analyze the informationC Help the villagers to move their home D Help other scientists to predict where lava will flow next and how fast.E Both A and D E E 4)Why is a volcanologis
9、ts job important?Volcanologists study volcanoes so that they can warn people when the volcano is going to erupt and so save many lives.Part two(Para.3-4)1.Which causes far more damage,the boiling 2.rock or the lava?Why?The lava.This is because no one lives near the topof Mount Kilauea where the rock
10、s fall.While the lava that flows slowly like a wave down the Mountain buries everything in its path under themolten rock.2.Why did the strange sound fail to catch the writers attention?A.Because it was a railway train passing my window.B.Because the writer was too tired to notice it.C.Because the wr
11、iter got used to strange sounds after two weeks in Hawaii.D.Because the writer thought it was due to a small earthquake.A.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 informa
12、tion about the eruption.3.What caused the volcanologist to run out of the house into the back garden?4.Why was it difficult for the writer to walk towards the edge of the crater?The writer was wearing special protective clothing that made it difficult to walk.Part three(Para.5)What does the writer f
13、ind 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.Discussion What do you think of volcanologists job?Do you like it,why or why not?dangerous/riskyinterestingchallengingtiringbo
14、ringimportant/vital GoodbyeGoodbyeSearching Reading 1.Analyze the sentence Having collected and evaluated the information,I help other scientists to predict where the lava from the volcano will flow next and how fast.Having collected and evaluated the information是是,在句子中作在句子中作;predict 后是由后是由where 和和h
15、ow引导的两个引导的两个。现在分词短语现在分词短语 时间状语时间状语注:分词完成式作状语强调分词动作发生在句注:分词完成式作状语强调分词动作发生在句子谓语动词之前子谓语动词之前宾语从句宾语从句2.Which sentence in the text can be replaced by the following one.The reason why I dont mind that my job is sometimes dangerous is that danger can be exciting and make me full of energy.I dont mind becaus
16、e danger excites me and makes me feel alive.3.I am still amazed at their beauty as well as the their potential to cause great damage.potential means:A.possibility B.opportunity4.Translate the following sentence into Chinese.Having studied volcanoes now for many years,I am still amazed at their beaut
17、y as well as the their potential to cause great damage.虽然我从事火山很多年了,但是我对火山的壮丽景色以及虽然我从事火山很多年了,但是我对火山的壮丽景色以及它那潜在的巨大破坏力至今仍然感到惊愕不已。它那潜在的巨大破坏力至今仍然感到惊愕不已。ADiscussion Having learnt a little more about the work of a volcanologist,do you think it is an occupation you would enjoy?Discuss your reasons with others in your class.Homework1.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)GoodbyeGoodbye
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