简介:TheonethingthatmostinterfereswithEnglishasaSecondLanguagelearner’sreadingisunknownvocabulary.Thisreferstoanywordwhichblocksthereaders’understandingintheirprocessofreading.Whenreading,onewillinevitablymeetunknownvocabularynomatterhowlargeone’smentallexiconis.Oftenthedensityofunfamiliarwordsinreadingmakesthereaderfeelgreatlyfrustratedandgiveupintheend,forhehasalreadylosthistrainofthoughtwhenlookingupwordsinthedictionary.Itisclearthattoogreatadensityofunknownlexicalitemsslowsdownthereadingspeedwhichleadstopoorcomprehensionofthetext.Ofcourse,one’sknowledgeofEnglishvocabularyisboundtobelimited;butisthereawayonecanefficientlycopewiththeunknownwordsonecomesacrossinreadingwithouthavingtostopandlookthemupinthedictionary.