文档介绍：1Articlesandone,alittle/afew,this,that1a/an(theindefinitearticle)Theformaisusedbeforeawordbeginningwithaconsonant,oravowelwithaconsonantsound:amanahatauniversityaEuropeanaone-waystreetTheformanisusedbeforewordsbeginningwithavowel(a,e,i,o,u)orwordsbeginningwithamuteh:anappleanislandanuncleanegganonionanhourorindividuallettersspokenwithavowelsound:anL-plateanMPanSOSan'x'a/anisthesameforallgenders:amanawomananactoranactressatable2Useofa/ana/anisused:ABeforeasingularnounwhichiscountable()whenitismentionedforthefirsttimeandrepresentsnoparticularpersonorthing:/-:Acarmustbeinsured=Allcars/=Allchildrenneed/:':alotofacoupleagreatmanyadozen(butonedozenisalsopossible)agreatdealofEWithcertainnumbersahundredathousand(See349)Beforehalfwhenhalffollowsawholenumberll/2kilos=oneandahalfkilosorakiloandahalfBut1/2kg=halfakilo(noabeforehalf),thougha+half+nounissometimespossibleahalfholidayahalfportionahalfshareWith1/31/4,1/5etcaisusualathird,aquarteretc,butoneisalsopossible(See350)FInexpressionsofprice,speed,ratioetc5pakilo£1ametresixtykilometresanhourlOpadozenfourtimesaday(Herea/an=per)GInexclamationsbeforesingular,countablenounsSuchalongqueue'Whataprettygirl'ButSuchlongqueues'Whatprettygirls'(Pluralnouns,sonoarticleSee3)HacanbeplacedbeforeMr/Mrs/Miss+surnameaMrSmithaMrsSmithaMissSmithaMrSmithmeans'amancalledSmith'andimpliesthatheisastrangertothespeakerMrSmith,withouta,impliesthatthespeakerknowsMrSmithorknowsofhisexistence(Forthedifferencebetweena/anandone,see4Forafewandalittle,see5)3Omissionofa/ana/anisomittedABeforepluralnounsa/,andofaneggiseggsBBeforeuncountablenouns(see13)CBeforenamesofmeals,exceptwhentheseareprecededbyanadjectiveWehavebre