spelling rule(单词拼写规则,全文英文)

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1、NounPluralFormationSpellingRuleExamplesExceptionsToformthepluralofmostnouns,simplyadd-scat>catsdog>dogs SurvivingOldEnglishpluralforms:deer>deer;sheep>sheep;ox>oxen;man>men;woman>women;child>children;brother(inareligioussense)>brethren;foot>feet;tooth>teeth.Somecompoundnouns:passer

2、-by>passers-by;mother-in-law>mothers-in-law.Pluralformsofnotfullynaturalizedforeignwords:chateau>chateaux;crisis>crises;formula>formulae;index>indices;stimulus>stimuliPluralformsofmetricabbreviations:100km(kilometres)60g(grams)2.5l(litres)Notethatwithnon-metricmeasurementspluralsis

3、optional:60lbor60lbsToformthepluralofnounsendingins,sh,ss,z,xorch,add-es tofacilitatepronunciationgas>gasesdish>dishesboss>bossesbox>boxeswatch>watches  Toformthepluralofnounsendinginyprecededbyaconsonant,changetheytoaniandthenadd-eslady>ladiesbaby>babiesstrawberry>strawberrieslabo

4、ratory>laboratories lay-by>lay-bys(BrE);stand-by>stand-bysFamilynames:Mr.&Mrs.Brady>TheBradysToformthepluralofanumberoflongestablishedEnglishnounsendinginforfe(butnotfforffe!)changethef toavandthenadd-eshalf>halvesleaf>leaveslife>livesknife>knives Mostothernounsendinginforfesimplya

5、dd-sasusual,buttherearesomecasesinwhichthe-vespluralformationisoptional: belief>beliefs;chief>chiefs;handkerchief>handkerchiefs(butnotehandkerchievesisanoptioninBritishEnglish);safe>safesCautionisadvisedand,ifindoubt,consultadictionary.Toformthepluralofimportednounsendinginoandlong

6、establishedinEnglish,add-escargo>cargoesdomino>dominoesecho>echoesembargo>embargoeshero>heroespotato>potatoestomato>tomatoestornado>tornadoestorpedo>torpedoesveto>vetoesForlessnaturalizednounsendingino,add-sonly:kilo>kilos;piano>pianos;kimono>kimonos;radio>radiosInafewcasesthe-espl

7、uralformationisoptional.Wheninanydoubt,consultyourdictionary!archipelago>archipelagos/archipelagoesfiasco>fiascos/fiascoeshalo>halos/haloesmango>mangos/mangoesDroppingandDoublingofLettersSpellingRuleExamplesExceptionsAfinalsilenteisusuallydroppedbeforeaddingasuffixbeginningwithavow

8、el-able Itisnotsoeasytopre