AcknowledgmentsThanks for giving me this chance to achieve this paper and to makethe conclusion for my four years'education.Through writing thispaper,I have gained more knowledge than I supposed.My sincere thanks are due to my supervisor,Ms.Lv Qianping forhelping me to clarify my thought and sharpen my thinking.Hercorrections and suggestions make me get great progress in writingthis thesis.I am also grateful for her encouragements.Here,I also want to give my thanks to other teachers and myclassmates who have given me much help in the past four years.Thankyou very much.摘要《海狼》是美国20世纪著名作家杰克·伦敦的最重要作品之二。作者描述了拉尔森船长与船员之间的共处与斗争，将拉尔森本性中野蛮的一面和文明的一面生动的展现出来。本文旨在对拉尔森中野蛮的一面和文明的一面及其产生的原因进行分析。拉尔森本性中野蛮的一面主要体现在其人生哲学及其实行的暴行上面：其文明的一面主要体现在他同汉弗莱的交流，对知识的态度以及对爱情的追求上。而导致其本性双重性产生的原因，一方面是出于生存的需要，而另一方面则在于其支配地位的贪欲。通过分析得出结论，拉尔森船长在欲望行为上对自己的放纵是导致自身最终灭亡的原因。人类作为一个生物物种是自然界的一部分，如果没有自然，人类就没有可以呼吸的空气，没有水资源，最后只有走上灭绝的道路。所以，人与自然是相互依存的。同时要求我们在改造和利用自然的过程中，应遵从自然规律。关键词：人性：狼性：弱肉强食AbstractJack London (1876-1916),as a reputed realistic writer in the 20thcentury,wrote one of his the most famous novels named The Sea Wolfattracting large amounts of readers.He depicted the very coexistenceand struggle between Captain Larson and his sailors,and vividlyshowed readers the duality of Captain Larson's nature both in humannature and in wolf instinct.The thesis is focusing on Captain Larson's duality of nature and the analysis of the reasons.ThroughoutLondon's whole novel,Larson's life philosophy and his rudebehaviors show his wolf instinct.On the contrary,Larson'scommunications with the author named Humphrey,his attitudes towardsknowledge and pursuits of love all present the captain'human nature.And the most important reason leading to his duality is mainly,inone aspect,out of needs for survival,and others out of his greedfor the dominant state.With the conclusions drawn by analysis,thereason why Captain Larson was defeated in the final is Larson'sindulgence in his desire and behaviors.Human being,as a biological species,is a part of nature.If thereis not nature,there is no breathing air and no water resources.As aresult,people finally only embark on the road to extinct.So itshould be interdependent between man and nature.Meanwhile,thisrequires us to follow the law of nature during the process oftransforming and utilizing nature.Key words:human nature;wolf instinct;the law of the jungleContents TOC \o "1-3"\u1.Introduction 11.1 Introduction of the Author Bibliography 11.2 Introduction of the Work Bibliography 22.Human Nature in Civilized Society 32.1 Conversation between Larson and I 42.2 Larson's Attitude Toward Knowledge Bibliography 52.3 Larson's Pursuit to Love 73.Wolf Instinct under Savage World Bibliography 93.1 The Life Philosophy of the Captain 103.2 The Brutality of Captain Larson 124.Reasons of the Production of the Duality of Larson's Nature 134.1 Need for Living 134.2 Greed for the Dominant Status 144.3 The Law of the Jungle 155.Conclusion 16Bibliography 17Civilized Savagery -On the Duality of Captain Larson's Nature inThe Sea Wolf1.IntroductionThis part mainly presents the introduction of the author's lifetimeincluding his background information and his works.Apart from this,this part also focuses on introducing his work -The Sea Wolf1.1 Introduction of the AuthorJack London was born on January 12,1876 in San Francisco,known forhis books The Call of the Wild,White Fang and The Sea Wolf.AmongLondon's literature works,he focuses on more about the issues ofthe common's survival and the poor people in lower class.Nevertheless,he is not aimed at writing fanciful imagination butadversity.For the reason that his family was very poor,Jack had to leaveschool at the very young age to earn money for the whole family'sliving.From his earliest youth,he began to support himself even hisfamily with some inglorious and dangerous jobs which the most otherwriters and intellectuals had never experienced in person.Forinstance,he experienced,by the time he was eighteen,the work as acannery worker,jute mill worker,an oyster pirate,seaman and coalshoveler.Being as a member of Coxey's army,he once has been jailedfor thirty days for his vagrant life.Just for his brief time inprison,he decided to educated himself.It was not as impoverished as London's later accounts claimed,London was educated largely with regardless of his family's workingclass.He finished high school in a short time and was admitted intothe University of California.For the reality,he had been writingfor many years,but he became a professional writer after hissearching for gold from 1897 to 1898.In the year 1897,he began toAlaska to find gold.Without getting much gold,he found his ideasfor writing books and stories.With such a strong idea,he went backhis hometown and began his writing career.After his back to SanFrancisco,he threw himself into writing.In 1900,he published hisfirst short story -The Son of Wolf,which made him being known bymany people.In 1903,that he created The Call of Wild made him morepopular.And in 1904,one of his famous long novels-The Sea Wolfwas finished and gained its best seller.His books were graduallypopular among the people of the day,and he became rich and welcomedwhen he was at the age of thirty.Unfortunately,he died young from "gastrointestinal"and failingkidneys for years.He took his own life in 1916.He was then onlyforty years old.Throughout his whole life,he has completed in all19 long novels,over 150 short stories,3 plays and some comments.With his eminent devotion to American literature,Jack London waspraised by American biography novelist Stone who said Jack London isthe father of proletarian literature,which was written in his Sailoron Horseback.Although Jack London has died for so many years,hisworks were greatly welcomed in United States,even all around theworld.We all should respect him.