【正文】 objects, ideas require new words to describe them. With the development of media, a lot of slang words are created and widely spread. Such as ‘sit’(situation edy), ‘chat show’(talk show), ‘bomb’(failure)etc. we can also take the modern science and technology as an example, ‘bird’(the satellite of dispatch), ‘chip head’(enthusiast of puter). Similarly, creation of slang occurs in other fields, such as sports, campus and so on. So the development of all aspects of society gives tremendous amount birth to the slang. Finally, American slang is quickly appearing and expanding under the abovementioned backgrounds. The existence of language is restricted by cultural context of society and sentiment of the speaker.Chapter3 The Function of American Slangs Social Function Strengthen the Internal Cohesion.Slang is language within a particular society, are often used in peer or gang, it reflects the internal members of the equality and harmonious relationships. Different social groups use their own unique argot or jargon. Such as: a box (= a piano), a number (= a tune), to swing (= to play well) is a jazz lover39。s immigrants maintain their own beliefs, customs, and even language. In their view, the unfair treatment to any other cultures could result in the loss of humanity of members that make up cultural groups. They also believe that if those minorities blending the traditional with the whole munity, then people with different cultural backgrounds are able to enjoy a full harmonious society which is full of equality and good wishes. National brand form the United States to a multicultural groups country, and cultural borrowing will inevitably lead to linguistic borrowing, therefore, foreign language and American English slang will continue to increase. In addition, within the framework of mainstream culture, there are many subcultural groups. The differences between Socioeconomic status groups and educational background that make up the decision of the differences between way of thinking and values of the group members, people39。s stolen goods to the sales site for samples.Some American slangs from the political sphere. A lot of slangs related to politic are fostered by Powerful American political system and a large number of political events. As these slangs with very high concern of usage, and some of them have entered the ranks of the daily standard language. Such as: baby kisses mean that politicians who are good at public speaking to win over the hearts and minds. Some slang from various professions. . military, universities and schools are conducive to a large number of . production areas. For example: flag means give a person F. that some a person whose some a homework is failing.In United States, the colorful culture of social such as ball games and sports, fast food , film and television also contributed to a lot of slangs. Since the invention of television, since the popular TV show is wele, this has generated a lot of this related to the slang. Such as: couch potato are those who sit all day watching TV fans. Language Itself Linguistic Analysis Slang as a language, it only lives in human society during its use. ① It is people need to interact generated. Slang is the jargon of social overlap between popular culture and then overlap (is mon parts, and the mon part is a powerful tool to municate with them). It meets the exchange of different sectors of the needs of people, so its appearance is inevitable. ② language as the development of human society is gradually improving. Social Development is the Motive of the Development of Language.Meyer (A. Meillet) think that the language of variation is the result of social change, only a causal relationship between them is sometimes direct, but in most cases is indirect。 slang just like the jeans which has been widely accepted by most of Americans. Although the jeans can not be worn into the magnificent party, it is pleasurable, fortable, free and has been popular in the whole America even the world. It is the myth in the capricious fashion circle. Slang is the myth in the language kingdom just as jeans.Chapter 2 The Origins of American Slangs BackgroundThere is a long history with the introduction of language, also with slang, but the American English slang, according to research DICKSON, since the Mayflower brand ship. 1620, English Puritans took this ship across the Atlantic to North America, New World, in America39。 ‘sweat’ bees ‘trouble’ as a slang word from its original meaning ‘liquid which es out through your skin when you are hot or frightened’ as a standard English。 slang is black words or incision. Langwen Modern Advanced English Dictionary will be defined slang as very informal language that includes new and sometimes not polite words and meaning, is often used among particular groups of people and is used, not used in serious speech or writing. The more authoritative and objective definition is offered by The oxford English Dictionary, “l(fā)anguage of a highly colloquial type, considered as below the level of standard educated speech, and consisting either of new words or of current employed in some special sense.”。 especially of a class understanding of idioms, such as military slang, prison slang. The definition of World Book Dictionary English on the slang as follows: (1) slang usually refers to the popular new time is not long, vulgar, and popular word, phrase or meaning. Slang is usually very vivid and expressive, often used between friends in casual conversation, it can not be presentable and acceptable in formal speech or article。 but today, as a highly colloquial speech which has bee the most colorful and vivid member of the family of languages. “The vocabulary of an ordinary America generally is estimated at 10,00020,000 words…according to my conservative estimation about 2,000 words are slang.”(Chapman, ) The number shows the important status of slang in American English