6200933223111

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WHAT EVER YOU WANT. YOU MUST LOOK AT IT

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6200933223111

  1. 1. English Lexicology Morphological Structure of English Words Week 3: Mar. 10, 2009 Instructor: Liu Hongyong
  2. 2. Morpheme ( 语素) <ul><li>The morpheme is the smallest meaningful unit of language. (lexical and grammatical meaning) A morpheme must have a meaning, and it is the smallest unit of meaning (the smallest sound-meaning union which cannot be further analyzed into smaller units) </li></ul>
  3. 3. Morpheme <ul><li>The word lady can be divided into two syllables (la.dy), but it consists of just one morpheme, because a syllable has nothing to do with meaning. </li></ul><ul><li>The word disagreeable can be divided into five syllables (dis.a.gree.a.ble), but it consists of only three morphemes (dis+agree+able). </li></ul><ul><li>The word books contains only one syllable, but it consists of two morphemes (book+s) (Notice: the morpheme – s has a grammatical meaning [Plural]) </li></ul>
  4. 4. The internal structure of words <ul><li>Words can have an internal structure, i.e. they are decomposable into smaller meaningful parts. These smallest meaningful units we call morphemes. </li></ul><ul><li>read+er re+read en+able dark+en </li></ul><ul><li>Mary+ ’s print+ ed cat+ s go+ es </li></ul>Lexical or Grammatical Genitive case Past tense Plural marker 3rd singular Present-tense grammatical/inflectional morpheme
  5. 5. <ul><li>books /-s/ </li></ul><ul><li>pigs /-z/ </li></ul><ul><li>boxes /-iz/ </li></ul><ul><li>A morph is a physical form representing a certain morpheme in a language. </li></ul><ul><li>Sometimes different morphs may represent the same morpheme; i.e., a morpheme may take different forms. If so, they are called allomorphs of that morpheme. </li></ul>Morpheme, Morph, Allomorph two different spelling forms , and three different phonological forms, but these different forms represent the same grammatical meaning [Plural])
  6. 6. Complementary Distribution <ul><li>Allom orphs are morphs in complementary distribution ; i.e. they are never found in identical contexts. </li></ul><ul><li>The choice of allomorph used in a given context is normally based on the properties of the neighboring sounds. </li></ul><ul><li>Example: The third person singular verb suffix and the plural nominal suffix –s in English </li></ul>[s] [z] [iz] morpheme morph morph morph allomorphs /s/
  7. 7. Complementary Distribution <ul><li>morpheme </li></ul><ul><li>‘ negative morpheme in- ’ </li></ul><ul><li>morph1: im morph2: in morph3: in </li></ul><ul><li>im possible in decent in complete </li></ul><ul><li>[imp---] [ind---] [i ŋk ---] </li></ul>bilabial stop velar nasal alveolar stop allomorphs bilabial nasal alveolar stop velar stop
  8. 8. Classification of Morphemes <ul><li>Morphemes can be classified in various ways. </li></ul><ul><li>free or bound </li></ul><ul><li>root or affix </li></ul><ul><li>inflectional or derivational </li></ul>
  9. 9. Free and Bound Morphemes <ul><li>We can divide reader into read and –er . However, we cannot split read into smaller morphemes. This means that the word read is itself a single morpheme. A morpheme which can stand alone as a word is called a free morpheme . By contrast, -er has to combine with other morphemes. So it is a bound morpheme . </li></ul>
  10. 10. Root , stems & a ffix es nature natur al natur al ist natur al ist ic natur al ism un natur al Stems: root plus affixes affixes : bound morphemes which attach to roots or stems. Root /base : the basic morpheme which provide s the central meaning in a word simple word Complex Word
  11. 11. root/base affix Stem complex word Stem affix . . . .
  12. 12. bound root morphemes <ul><li>-ceive: </li></ul><ul><li>receive; </li></ul><ul><li>perceive; </li></ul><ul><li>conceive; </li></ul><ul><li>deceive </li></ul><ul><li>-mit: </li></ul><ul><li>permit; </li></ul><ul><li>commit; </li></ul><ul><li>transmit; </li></ul><ul><li>admit; </li></ul><ul><li>remit; </li></ul><ul><li>submit </li></ul>All mophemes are bound or free. Affixes are bound morphemes. Root morphemes, can be bound or free. ceive was once a word in Latin ‘to take’, but in Modern English, it is no longer a word, so it is not a free morpheme. (friend)ship, re(do), (sad)ly… Affix (per)ceive, (re)mit, (homo)geneous,… dog, cat, run, school… Root Bound Free
  13. 13. Example of bound root <ul><li>revive </li></ul><ul><li>vitamin </li></ul><ul><li>vital </li></ul><ul><li>vivacious </li></ul><ul><li>vivid </li></ul>viv-id: having the quality of life re-vive: to live again, to bring back to life vit-amin: life medicine Latin root viv-/vit- meaning “life” or “to live”. vit-al: full of life viv-acious: full of life
  14. 14. Inflectional and Derivational Morphemes <ul><li>Affixes can be divided into i nflectional morphemes and d erivational morphemes. This reflects two major morphological (word building) processes: </li></ul>Derivation Inflection Helps to make new lexical words Helps to ‘wrap’ lexical words for various grammatical functions
  15. 15. Inflectional Morphemes <ul><li>Inflectional morphemes do not change grammatical category of the base to which they are attached. They do not change the meaning of the base . They only carry relevant grammatical information , e.g. plural . Thus, book and books are both nouns referring to the same kind of entity. </li></ul><ul><li>The number of inflectional affixes is small and fixed. NO new ones have been added since 1500. </li></ul>
  16. 16. Examples of Inflectional Affixes tall-er comparative Adj -er tall-est superlative Adj -est walk-ing progressive V -ing walk-ed past tense V -ed sleep-s 3 rd singular present tense V -s book-s plural N -s Example Function Stem Suffix
  17. 17. Derivational Morphemes <ul><li>Derivational morphemes form new words </li></ul><ul><ul><li>either by changing the meaning of the base to which they are attached </li></ul></ul><ul><ul><li>kind ~ un kind; obey ~ dis obey </li></ul></ul><ul><ul><li> accurate ~ in accurate; act ~ re act </li></ul></ul><ul><ul><li> cigar ~ cigar ette ; book ~ book let </li></ul></ul><ul><ul><li>or by changing the grammatical category (part of speech) of the base </li></ul></ul><ul><ul><li>kind ~ kind ly ; act ~ act ive ~ act ivity </li></ul></ul><ul><ul><li>able ~ en able; damp ~ damp en </li></ul></ul><ul><ul><li> care ~ care ful ; dark ~ dark ness </li></ul></ul>
  18. 18. E xamples of Derivational Affixes e nc our age V N en- ex-wife N N ex- rewrite V V re- dishonest Adj Adj dis- dis-like V V dis- untie V V un- unkind Adj Adj un- inaccurate Adj Adj in- E xample Grammatical category of output Grammatical category of base Prefix read-er N V -er refus-al N V -al care-ful Adj N -ful power-less Adj N -less poet -ic Adj N -ic beauti-fy V N - fy leader -ship N N -ship child-hood N N -hood E xample Grammatical category of output Grammatical category of base Suffix
  19. 19. Sum: Inflection and Derivation <ul><li>Derivational morphemes are used to create new lexical items ( lexemes ). </li></ul><ul><li>Inflectional morphemes only contribute to the inflectional paradigm of the lexemes , which lists all the word-forms of the lexeme. </li></ul>morpheme free free root bound bound root inflectional affixes derivational affixes affixes
  20. 20. Conclusion <ul><li>Words are composed of morphemes. </li></ul><ul><li>A morpheme is the minimal meaningful unit, possessing both sound and meaning. </li></ul><ul><li>An allomorph is any of the variant forms of a morpheme. </li></ul><ul><li>Morphemes can be classified into free morphemes and bound morphemes, roots and affixes, inflectional and derivational. </li></ul><ul><li>The concept of morpheme is important in explaining word-formation processes. In English the most central and productive word-formation processes are compounding and affixation. Compounding refers to the word-formation process of combining two free morphemes, and affixation refers to the word-formation process of adding affixes to roots. </li></ul>

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