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名词复数加s与es规则1)单数名词加s:students,apples,bags,trees,books,brothers.2)以s、x、sh、ch结尾的名词加es:glasses,boxes,brushes,matches.3)以辅音字母加y结尾的名词,变y为i加es:cities,babies,enemies.4)以f或fe结尾的名词,多数变f为v加es:wives,knives.但有些词只加s:roofs,proofs,chiefs.5)以o结尾的名词,有些加es:Negroes,heroes,tomatoes,potatoes.其它加s:radios,zoos,pianos,photos.6)不规则名词:foot→feet,goose→geese,tooth→teeth,child→children,man→men,woman→women,sheep→sheep,deer→deer,mouse→mice.7)某些外来词变复数:datum→data,medium→media,bacterium→bacteria,curriculum→curricula,criterion→criteria,phenomenon→phenomena.(um/on→a)analysis→analyses,basis→bases,crisis→crises,diagnosis→diagnoses.(is→es)8)复合名词变复数:以不可数名词结尾的复合名词无复数形式,如:homework.以man或woman为前缀的复合名词变复数,前后两个名词都变复数,如:manservant→menservants,womanstudentwomenstudents.其它复合名词变复数:grownup→grownups,brotherinlaw→brothersinlaw,standby→standsby.9)复合形容词做定语时,其中的名词保持单数:asixyearoldboy,atwohundredpagebook10)以ch结尾的名词变复数是加es还是加s,是由ch的发音决定的.10.1stomach(胃),matriarch(女家长,女族长),monarch(君主),czech(捷克人)这几个词的复数形式是stomachs,matriarchs,monarchs,czechs,其复数形式都是直接加s,其中-ch都是读作/k/10.2当ch发音为/t/、/d3/时,复数应在词尾加es,e.g.:benches/bentz/(长凳),branches/‘bra:ntz/(树枝、支部),torches[tɔːtʃz](火炬),sandwiches['sæn(d)wɪdʒ;-wɪtʃ](三明治)
本文标题:名词复数加s和es
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