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会计学ThreeformsofwordsⅠ.BlendingForexample,flushisthecombinationofflandush.Fourmajorgroupsofblends2.head+head3.head+word4.word+tailTheoverwhelmingmajorityofblendsarenouns;veryfewerareverbsandadjectivesareevenfewer.Thefewverbsare:telecastfrom(television+broadcast)guestimatefrom(guess+estimate)breathalysefrom(breath+analyse).ThelimiteduseofblendsⅡ.ClappingTosavetime,oneislikelytoclipwordsfrequentlyused.IncateringbusinessTherearefourcommontypesofclipping2.Backclipping3.FrontandbackclippingTipforsomeexchangesofwordse.g.bicycle→bikemicrophone→mikecocacola→cokeperambulator→pramtelevision→tellyThischangeinformandsoundispossiblydotoconvenienceandcasualnessinspeech.Ⅲ.Acronymy★Initialisms1.Lettersrepresentfullwords2.Lettersrepresentconstituentsinacompoundorjustpartsofaword★AcronymsCORE→CongressofRacialEqualitySomeacronymsareformedwiththeinitialletterofthefirstwordplusthewholeofthesecondBothinitialismsandacronymshavebecomeverypopularsincetheSecondWorldWarandThusextremelyproductive.ThisisjustifiedbythenumberofsuchwordscollectedinE.T.Growley’sAcronymsandInitialismsDictionary.The1steditionwhichappearedin1961contains12,000entries;the2ndeditionthatcameoutin1965lists45,000entries;the3rdeditionwhichwaspublishedin1970collects80,000entries,Almosttwicethenumberofthesecondedition.Withtheadvanceoftime,someofthewordsmayfalloutofusewhereasbyfaragreaternumberofwordswillbeadded.AcronymywillundoubtedlyremainanimportantcontributortocontemporaryEnglishvocabulary.ⅣBack-formationthesupposedsuffixes1.Abstractnouns2.Humannouns3.Compoundnounsandothers4.adjectivesWordscreatedthroughback-formationaremostlyverbsStylistically,back-formedwordsarelargelyinformalandsomeofthemhavenotgainedpublicacceptance.Therefore,theyshouldbeusedwithcare.That‘sall