文档介绍：Chapter3MorphologicalstructureofEnglishwordsObjectives:Discussmorphemes,theirclassificationandidentification;Explaintherelationshipbetweenmorphemesandword-formationTeachingfocus:DefinitionofmorphemesDefinitionofallomorphsTypesofTypesofmorphemesfreemorphemeboundmorphemeDefinitionsofroot,?。:icororthographicstringsorsegmentswhichrealizemorphemesaretermed‘morphs’.语素的语音或拼写法的体现叫形素。Morphsareactualspoken,。Whatisanallomorph?。ForexampleWhenthepluralmarker{s}isaddedtocat,dog,andhorse,itispronounceddifferentlyas/-s,-z,-iz/andthushasthreephonologicalforms;thethreeformsarejustthevariantsofthesamemorpheme{s},{s}. applyingtoaffixesonlyContent/ ,它有完整的意义,在句中充当一个自由的语法单位。.,man,wind,open,,只能依附于其他语素上以构成词或担当一定的语法功能。Freemorphemesareallroots/freeroots,whicharecapableofbeingusedaswordsorasword-,也叫自由词根,能用作词或作为构成新词的构词要素。Boundmorphemesconsistofeitherroots(boundroots)(粘着词根)和词缀。.,boundroot:-dict-,-ced-affix:-ion,-ist,-ic