英语口语与写作英语的区别.pptVIP

The definition of Formal language and Informal language A formal language is a set of words, which?is used in “serious” texts and situations. i.e. finite strings of letters, symbols, or tokens. The set from which these letters are taken is called the alphabet over which the language is defined. A formal language is often defined by means of a formal grammar (also called its formation rules); accordingly, words that belong to a formal language are sometimes called well-formed words (or well-formed formulas). Formal languages are studied in computer science and linguistics; the field of formal language theory studies the purely syntactical aspects of such languages (that is, their internal structural patterns). Formal Language When the Formal Language are used? Formal languages are often used as the basis for richer constructs endowed with semantics.For instance, writing an easy, email, and studying in the class. Informal Language Informal language arises out of all those channels that fall outside the formal channels and it is also known as grapevine and?is used in everyday conversations and in personal letters. It is established around the societal affiliation of members of the organization. Informal language does not follow authority lines as in the case of formal language. When the Informal Language are used? Informal language takes place due to the individual needs of the members of an organization and subsists in every organization. Normally, such language is oral and may be expressed even by simple glance, sign or silence. Informal language, is implicit, spontaneous multidimensional and diverse. It oftenly works in group of people, i.e. when one person has some information of interest; he passes it on to his informal group and so on. The degrees of formality or informality in Hull Generally in official or serious situations, the formal English should be used, while in casual or relaxed situations one can use informal English. The degree