美国习语的定义（英文的）

English idiom is a highly developed language,So Ke Lin period, English linguist in the Preamble of the English the idiom gathering said: “in standard spoken and written English today, idiom is an Universal and essential element. And it is used with care, and ornaments and it enriches the language.” the definition of idiom was given by the Oxford English Dictionary is that a peculiarity of phraseology approved by usage of language and often have a special signification other than its grammatical or logical one. In reference to the definition of idiom, some other people also show their opinions:W.J.Ball,A practical Guide to colloquial Idioms: “the use of familiar words in an unfamiliar sense” Adam Makkai, A Dictionary of American Idioms:” The assigning of a new meaning to a group of words which already have their own meaning “.Logan Pearsall Smith, “words ,idioms, and phrase, which transgress either the laws of grammar or the laws of logic” .A.P.Cowie&R.Mackin, Oxford Dictionary of Current Idiomatic English: “a combination of two or more words which function as a unite of meaning “.Long man Group Ltd. Long man Dictionary of English Idioms: “a fixed group of words with a special different meaning from the meaning of the separate words”. Another definition given by Longman’s English idiom Dictionary is “a fixed phrase, which has peculiar meaning, and the meaning is not the total of every singular meaning of the word added simply”. Every thing is changing in every minute and there is no exception for English idioms. With the deeply understanding of its own culture and language itself, the meaning of English idioms is changing too. It’s not only the simple adding of each word. It’s the combination of a country’s culture, Life and its background of society. How we can make difference between the idiom and not idiom? Frankly, there is no obvious difference between them. The meanings of most idioms are complex and difficult to be understood. That is because that idiom has its own idiomaticity, and idiom’s own scope is wide .it includes slang, proverb, allusions, similes, metaphors and collocations. McMordie, a linguist thinks that Idiomaticity arises from peculiar uses of particular words, and also particular phrases or turns of expression which from longtime usage, and has become stereotyped in English .So the only way we can use them well is that we acknowledge the features of the idioms. 虽然繁杂了点，也请看看，是否能够解决问题。