Contents.
     I. Introduction_______________________________2.
    II. Theoretical part___________________________4.
    III. Practical part_____________________________32. IV. Conclusion______________________________36. V. Bibliography_____________________________37. VI. Appendix I______________________________39.
    VII. Appendix II_____________________________40.
    VIII. Appendix III____________________________43.
    IX. Appendix IV_____________________________46.
    X. Appendix V ______________________________48.
    XI. Appendix VI_____________________________51.
    XII. Appendix VII____________________________53.
    
    
    
    
    I. Introduction. This diploma paper is the logic continuation of course paper. The choice of a theme of this paper is caused by the small studying of this question by way of teaching it in primary school. The word-formation, as one of branches of lexicon, is a difficult and volumetric question, therefore requires the careful studying. The basic theme of this paper is the question on conversion, as the most productive way of a word-formation however the other kinds of formation of new words: prefix and suffix word-formation, also are mentioned. The special place is allocated for productivity of adjectives of a colourmarking. Having the rather large ability to formation the new words it is interesting the fact, that formed from them by any of ways of a word, it is more often nouns, formed on conversion, have a tendency to enter into the structure of various phraseologies, phraseological word combinations, that speaks about connection between phraseological and word-formation systems of the language.
    The paper consists of two basic parts: theoretical and practical ones, which examine one problems, but from the different corners of sight. The theoretical part includes some subitems. At first it is necessary to tell some words about the term "word", which is the main one in the paper and should be definite. The term "word" is taken to denote the smallest independent unit of speech susceptible of being used in isolation. Also it is impossible to disregard the definition of the field of word-formation. The mention about affix (suffix and prefix) word-formation in the paper is not casual, the conversion is more productive way, in comparison with them, because the formation of new words on conversion is possible practically from any part of speech, including prepositions and proper names. Speaking about the abilities to a word-formation of colourmarking adjectives, it is necessary to note three ways, on which this process passes: The suffix, conversion word-formation and the word addition way , though the more often English language prefers a word combination. Also the formation of derivative verbs on conversion is typical for the English language.
    Having analysed some courses of studying the foreign language it was interesting to find out, that the conversion is not mentioned at all there, though, being one of the most productive ways of a word-formation, could be a good way of updating the child's active and passive vocabulary. Taking into account the opportunities, which are given by the knowledge of this way of formation the new words, it is easy to estimate a role of studying this material at school, it is natural that the beginning of presenting some items of this phenomenon to children is necessary to start from that moment, as soon as the children would have the sufficient lexical base for this purpose. It is possible to consider the third year of training as the most successful moment for the beginning of presenting the essence of this phenomenon to children. For confirmation of this hypothesis three experiments were spent: ascertaining, forming and control ones, with group of children studying the English the third year. By the purpose of all these experiments was to establish: have the children a representation about this phenomenon, can they acquire the offered information, is it possible to develop the skill of using such words in their speech .
    It would be desirable to note the works of some authors, which were used in this work, such as: "English word-formation" by L. Bauer, "The categories and types of present day word-formation" by H. Marchand, "The word-formation abilities of colourmarking adjectives in modern German languages" by M. Jirmunskaya.
    
    II. Theoretical part.
    The term "word".
    
    The term "word" should be defined. It is taken to denote the smallest independent, indivisible unit of speech, susceptible of being used in isolation. A word may have a heavy stress, thought, some never take one. To preceding the 'infinitive' never has a heavy stress, but it is a word as it can be separated from the verbal stem by an adverb (as in to carefully study). A composite may have two heavy stresses so long as it is not analyzable as a syntactic group. There is a marked tendency in English to give prefixes full stress thought they do not exist as independent words. Indivisible composites such as arch-enemy, crypto-communist, unlucky, therefore are morphological units whereas combination, like stone, wall, gold watch, are syntactic groups. As for the criterion of indivisibility, it is said that the article a is a word as IT can interpolate words between article and substantive (a nice man, a very nice man, an exceptionally gifted man). But a as in aglitter can't be separated from the verb stem with which it forms a group and therefore is not a free morpheme (word). ............