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1、第七章阅读理解A16年真题全析全解1993年研究生入学考试英语阅读理解APassage1Islanguage,likefood,abasichumanneedwithoutwhichachildatacriticalperiodoflifecanbestarvedanddamaged?JudgingfromthedrasticexperimentofFrederickⅡinthethirteenthcentury,itmaybe.Hopingtodiscoverwhatlanguageachildwouldspeakifh
2、eheardnomothertongue,hetoldthenursestokeepsilent.Alltheinfantsdiedbeforethefirstyear.Butclearlytherewasmorethanlackoflanguagehere.Whatwasmissingwasgoodmothering.Withoutgoodmothering,inthefirstyearoflifeespecially,thecapacitytosurviveisseriouslyaffected.Todaynosuch
3、severelackexistsasthatorderedbyFrederick.Nevertheless,somechildrenarestillbackwardinspeaking.Mostoftenthereasonforthisisthatthemotherisinsensitivetothesignalsoftheinfant,whosebrainisprogrammedtolearnlanguagerapidly.Ifthesesensitiveperiodsareneglected,theidealtimef
4、oracquiringskillspassesandtheymightneverbelearnedsoeasilyagain.Abirdlearnstosingandtoflyrapidlyattherighttime,buttheprocessisslowandhardoncethecriticalstagehaspassed.Expertssuggestthatspeechstagesarereachedinafixedsequenceandataconstantage,buttherearecaseswherespe
5、echhasstartedlateinachildwhoeventuallyturnsouttobeofhighIQ.Attwelveweeksababysmilesandmakesvowel-likesounds;attwelvemonthshecanspeaksimplewordsandunderstandsimplecommands;ateighteenmonthshehasavocabularyofthreetofiftywords.Atthreeheknowsaboutl,000wordswhichhecanpu
6、tintosentences,andatfourhislanguagediffersfromthatofhisparentsinstyleratherthangrammar.Recentevidencesuggeststhataninfantisbornwiththecapacitytospeak.Whatisspecialaboutman’sbrain,comparedwiththatofthemonkey,isthecomplexsystemwhichenablesachildtoconnectthesightandf
7、eelof,say,atoy-bearwiththesoundpattern"toy-bear".Andevenmoreincredibleistheyoungbrain’sabilitytopickoutanorderinlanguagefromthemixtureofsoundaroundhim,toanalyse,tocombineandrecombinethepartsofalanguageinnewways.Butspeechhastobeinduced,andthisdependsoninteractionbe
8、tweenthemotherandthechild,wherethemotherrecognizesthesignalsinthechild’sbabbling(咿呀学语),graspingandsmiling,andrespondstothem.Insensitivityofthemothertoth
