综合英语Book IV unit 8 Antarctica.ppt

Unit 8 Antarctica,Antarctica,1.Lead-in2.Background 3.Text analysis4.Stylistic analysis5.Oral work6.Homework,Pre-reading question:What are the four oceans and the seven continents in the world?,Indian Ocean,Oceania,Africa,The Pacific Ocean,North America,Asia,Europe,South America,Antarctica,Atlantic Ocean,Arctic Ocean,Lead-in,Pre-reading Question:where is Antarctica?,South America,The Pacific Ocean,Oceania,Africa,The Indian Ocean,The Atlantic Ocean,Antarctica,Lead-in,Brief introduction to Antarctica,The word“Antarctica”came from Greek.,Background,Geography,The fifth-largest continentSurrounded by the Southern Pacific,Atlantic and Indian OceansCovers more than 14 million Km2 1.3 times as large as Europe About 98%is covered by ice sheet about 98%of the worlds ice,Climate,The coldest place on Earthmean temperature is generally about-88,colder than those areas in an equivalent latitude of the Arctic.lowest temperature recorded was-89.2 A frozen desert with little precipitation which is only 200mm,Resources,About 220 kinds of minerals,Such as coal,iron,copper，gold.,Population,There are no permanent residents,but a number of research stations.The number of people conducting and supporting scientific research is about 1000-5000.,A Long History of Exploration,It was first sighted in the early 19th century.Scientists explored only fragments of its coasts by the end of the 19th century.Explorers first reached the South Pole in 1911.The first permanent settlements(scientific stations)were established in the early 1940s.In recent years increasing numbers of tourists have visited Antarctica.,A Long History of Exploration,The earliest explorations of the south polar seas were made in 1772-1775 by a British expedition commanded by Captain James Cook.Exploration of the Antarctic intensified in the 1820s and 1830s.,Donald Gordon Payne,Born in 1924 in LondonBritish novelist and writer of documentariesPen names:James Vance Marshall,Ian Cameron,and Donald Gordon,Major works,The Midnight Sea 1958Walkabout(1959)masterpiece The Lost Ones(1969)The Wind at Morning 1973 The Last Continent 1974White-Out(1999)Riders of the Storm(2002),Whats the main idea of this text?,The text is about Antarctica-why it has not been conquered by man so far and how our“tenure”of it is questionable even today.,Text Analysis,How many parts can the text be divided into?,Part 1(Line 1Line 2):Brief Introduction to Antarctica.,Part 2(Line 11Line 21):The comparison between the Arctic and the Antarctic.,Part 3(Line 22Line 49):Antarctica does not provide the basic essentials to life.,Part 4(Line 50Line 52):The greatest drawback to the unveiling of Antarctica is the nature of the sea.,Text Analysis,Listen to the recording of the text,and discuss with your partner about the similarities and differences between the Arctic and the Antarctic on the following aspects:location,climate,biotic population and human activity.,Text Analysis,Between the Arctic and the Antarctic,Similarities and Differences,Stylistic Analysis,1.Techniques to arouse interest and presenting striking description.,Stating the central theme at the beginningTurning to description and narration as aid to give introduction to Antarctica.Simile:Antarctica-great lantern,2.Concrete data,statistics and facts,Eg.This ice sheet covers 5,500,000 square miles.It averages more than 7,000feet in thickness.It contains more than 90 per cent of the worlds ice and snow.,3.Comparison and contrast,Eg.The Arctic is closely hemmed in by the populated land masses;the Antarctic in contrast is in splendid isolation.It is also the facts the writer use to support his claim that our knowledge about Antarctica.,4.Direct quotations of authorities.Rainfall:less than 5 centimeters a yearWarmth:the coldest place on earth,-88 Degree of stillness:people cannot even stand still in Antarctica.Wind:main and most cruel characteristic is wind.,5.Striking conclusion,giving a final sense of unity.,Eg.Yet climate by itself was not the main drawback to the unveiling Antarctica:an even greater drawback was the nature of the seathe southern oceanwhich surrounds it.,6.Parallel structures,Eg.in this sort of cold,if you try to burn a candle,the flame becomes obscured by a hood of way,if you drop a steel bar,it is likely to shatter like glass,and if you haul up a fish through a hole in the ice,within five,it is frozen so solid that it has to be cut with a saw.,Language points,Word studyparaphrase,the most distinctive feature of our planet is,distinctive:Serving to identify or set apart an individual or group,a distinctive appearance,style,smell Long complex sentences are distinctive of Henry Jamess later style.Alcohol has a very distinctive smell;its quite distinct from the smell of wine.,distinctively adv:distinctively colored distinctiveness n U.,Seen from space,the astronauts tell us,the most distinctive feature of our planet is the ice sheet of Antarctica which“radiates light like a great white lantern across the bottom of the world.”,Task:paraphrase,We learn from the astronauts that if we look“down”from space,we will find the most conspicuous/outstanding characteristics of Earth to be the thick layer of ice which is Antarctic,which sends light over the southernmost part of the southern hemisphere.,It averages more than 7,000 feet in thickness,average:v.find the average of,e.g.He averaged a C.The number of hours I work per work averages out to 40.The rainfall averages 36 inches a year.,Task:Translate 税务局算出他5年内的平均利润为每年3000英镑.,The tax authorities averaged his profit out at 3000 a year over 5 years.,Yet 160 years ago no one had ever set eyes on this vast continent,let alone set foot on it;,Those who claimed to have set eyes on the mysterious savage in the forest all affirmed that the most distinctive feature of the savage was its huge size.,set eyes on 看到set foot on 进入set ones heart on 渴望set ones mind on 决心要set ones teeth on edge 使某人不舒服,Task:Translate 所有那些声称见过神秘野人的人都肯定地认为。野人最显著的特征是巨大的身材,Yet 160 years ago no one had ever set eyes on this vast continent,let alone set foot on it;,I cant drive a car,let alone fly an airplane.,The baby cant even walk,let alone run.He hasnt enough money for food,let alone amusements.There isnt enough room for us,let alone six dogs and a cat.,Task:Translate 我连汽车都不会开，更不用说开飞机了。,Yet 160 years ago no one had ever set eyes on this vast continent,let alone set foot on it;and even today mans tenure of it is unsure and his knowledge comparatively slight.,Task:paraphrase,One hundred and sixty years ago,however,nobody had ever seen this enormous continent,and had certainly not walked on it.Even today whether we can occupy it or not is still uncertain.Further,we know relatively little about it.,tenure:holding of(eg political)office or land or other property,etc.The tenure of the US Presidency is four years.Its becoming increasingly difficult to acquire academic tenure.,In fact their differences outweigh their similarities.,outweigh:To be more significant than;exceed in value or importance.,This outweighs all other considerations.The medical benefits of x-rays far outweigh the risk of having them.,Task:Translate 这个计划的获益超出了它的缺陷。,The benefits of the scheme outweigh the disadvantages.,The Arctic is closely hemmed in by the populated landmasses of Europe,America and Asia;,hem:To surround and shut in;enclose,a valley hemmed in by mountainsHe felt hemmed in by convention.The enemy troops were hemming us in.,Task:Translate 湖四周栽满垂柳。,The lake is hemmed in on all sides by weeping willows.,the Antarctic in contrast is in splendid isolation,divided from the nearest land by vast reaches of the most tempestuous seas on earth.,tempestuous:Of,relating to,or resembling a tempest,tempestuous galesa tempestuous sea a tempestuous relationshipa tempestuous political debate,Task:Translate 北极居住着各族人民。与北极显然不同的是，南极却没有永久性的居民，因为那里的气候不利于人类生存。,The arctic is populated with people of different nationalities.The Antarctic,in contrast,has no permanent residents because the climate there is unfavorable to human survival.,In fact their differences outweigh their similarities.The Arctic is closely hemmed in by the populated landmasses of Europe,America and Asia;the Antarctic in contrast is in splendid isolation,divided from the nearest land by vast reaches of the most tempestuous seas on earth.,Task:paraphrase,The differences between the arctic and the Antarctic are greater than the similarities.The arctic is tightly surrounded by the continents of Europe,America and Asia where there are permanent population;whereas the Antarctic is unconnected to anywhere else,separated from the nearest land by vast areas of the worlds roughest seas.,We are so inclined to think of both the Arctic and Antarctic as cold,Be inclined to:,Im inclined to believe hes innocent.Generally speaking,Im inclined to agree with you.We can go for a walk,if you feel so inclined.,I am inclined to think that there will be strong opposition to our reform plan among quite a few board members.,task:translate 我总觉得相当数量的董事会成员会强烈反对我们的改革计划。,As regards:in regard toe.g.As regards that matter Im quite of your opinion.As regards the second point,we can discuss it at another meeting.As regards the car,I didnt forget to put an advertisement in the paper.,As regards precipitation the southern continent is a desert with an annual fall no greater than the outback of Australia.,task:translate 关于小岛上的饮用水质量问题，据登岛探险家的报道，岛上的水有一种甘甜清新的味道。,As regards the quality of the drinking water on that small island,the explorers who set foot on the island reported that it was sweet,pleasant and refreshing.,In this sort of cold if you try to burn a candle the flame becomes obscured by a hood of wax,v.to make dim or indistinct:e.g.Smog obscured our view.The main theme of the book is obscured by frequent digressions.,obscure:a.out of sight;hiddene.g.an obscure village.an obscure flaw.an obscure poet,In these conditions it was possible to stand for no more than a few seconds,and then only by leaning forward at an angle of 45!,Task:paraphrase,Under such conditions,a person could only stand for a few seconds,and that was by leaning forward to form an angle of 45 with the ground.,Stand:toleratee.g.I dont know if I can stand the waiting any longer.can stand somebody doing somethinge.g.How can you stand Marty coming home late all the time?,It is worth remembering that wind is as injurious to human health as cold;,e.g.Speak not injurious words.Smoking is injurious to health,especially to the lungs.,injurious:causing or likely to cause injury;harmful,Task:translate 我们不能姑息任何人的有害社会秩序的行为，不管他是谁，不管他来自何处。,No matter who he is or where he is from,we cannot tolerate anyones behavior that is injurious to social order.,Small wonder that whereas in the eighteenth and early nineteenth centuries man swiftly explored and occupied the rest of the planet,the southernmost continent remained inviolate.,It is not surprising that although man did not hesitate to explore and take possession of most of the earth in the eighteenth and early nineteenth centuries,the continent in the far south was left untouched.,task:paraphrase,Task:translate 怪不得他们一场一场地输球，他们已经好久没有训练了。,Small wonder they lost the games time and again;they had been out of training for quite some time.,Yet climate by itself was not the main drawback to the unveiling of Antarctica;,unveil a statue 为塑像揭幕e.g.The plan was unveiled with the approval from the Minister.She unveiled her plans for reform.,Unveil:to disclose;reveal,Drawback:a disadvantage of a situation,plan,product etc e.g.Its a great city-the only drawback is the weather.drawback of/to(doing)somethingThe main drawback to these products is that they tend to be too salty.,Yet climate by itself was not the main drawback to the unveiling of Antarctica;,Task:translate 从经济收益方面来考虑，出版学术书籍的主要问题在于这类书籍销量较少，平均每次印刷数量只有数百本而已。,As far as the business profits are concerned,the main drawback of the publication of academic books is that they usually do not sell well,with an average number of only several hundred copies for each painting.,Discuss with your partner and make a conversation about the following topic:Should human beings explore the Antarctic on a large scale and make full use of its resources?,Oral work,1.Write a composition about the topic youve discussed:-Should human beings explore the Antarctic on a large scale and make full use of its resources?2.Finish Exs.in Workbook.,Homework,