文档介绍：Lexicology- Chapter 2 ? Morphological Structure and Word- Formation I. ponent parts of a word ? Morpheme: the smallest significant element, in terms of grammatical and lexical analysis. of morphemes ? Structurally: free morpheme and bound morpheme (OR: content morpheme and grammatical morpheme) ? Semantically: root and affixational morphemes ? Root morpheme: Anglo-Saxon origin and foreign origin ? Affixational morpheme: inflectional and derivational morpheme ? : Inflectional morphemes (8) ? : Derivational morphemes: prefix and suffix III. Allomorhs ?. Plural forms of nouns ? N. + {pl.-s} {s, z, is, iz , d, i:, ai, } ? Past tense verbs IV. Word-formation ? Affixation: prefixes and suffixes ? Conversion: n. ---- v. or v. ---- n. ? (composition) ? Back formation: editor---edit ? Abbreviation ( shortening): Clipping , initialism , acronyms ? Blending ?