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1、2012高考英语：阅读理解课堂练学案（24）PassageTwenty-six(SensoryEvaluationofFood) APolishproverbclaimsthatfish,totasteright,shouldthreetimes—inwater,inbutterandinwine.Theearlyeffortsofthebasicscientistsinthefoodindustryweredirectedatimprovingthepreparation,preservation,anddistributionofsafeandnutritiousfood.O
2、urmemoriesofcertainfoodstuffseatenduringtheWorldWarIIsuggestthat,althoughthesemighthavebeensafeandnutritious,theycertainlydidnottasterightnorweretheyparticularlyappetizinginappearanceorsmell.Thisneglectofthesensoryappealoffoodsishappilybecomingathingofthepast.Bow,inthebook“PrinciplesofSensoryE
3、valuationofFood,”theauthorshopethatitwillbeusefultofoodtechnologistsinindustryandalsotoothersengagedinresearchintoproblemofsensoryevaluationoffoods.Anattempthasclearlybeenmaketocollecteverypossiblepieceofinformation,whichmightbeuseful,morethanonethousandfivehundredreferencesbeingquoted.Asaresu
4、lt,thebookseemsatfirstsighttobeanexhaustiveandcriticallyusefulreviewoftheliterature.Thisitcertainlyis,butthisisbynomeansisitsonlyachievement,fortherearemanysuggestionsforfurtherlinesofresearch,andthediscursivepassagesarecrisplyprovocativeofnewideasandnewwaysoflookingatestablishedfindings. Ofp
5、articularinterestistheweightgiventothepsychologicalaspectsofperception,bothobjectivelyandsubjectively.Therelationbetweenstimuliandperceptioniswellcovered,andincludesavaluablediscussionoftheusesanddisadvantagesoftheWeberfractionofdifferences.Itisinterestingtofindthatinspiteofmanyattemptstosepar
6、ateanddefinethemodalitiesoftaste,nothingbetterhasbeenachievedthanthefamiliarclassificationintosweet,soursaltyandbitter.Noristhereasyetanyclear-cutevidenceofthephysiologicalnatureofthetastestimulus.Withregardtosmell,systemsofclassificationareoflittlevaluebecauseoftheextraordinarysensitivityofth
7、enoseandbecausetheresponsetothestimulusissosubjective.Theauthorssuggestthataclassificationbasedonthesize,shapeandelectronicstatusofthemoleculeinvolvedmeritsfurtherinvestigation,asdoesthetheoreticalpropositionthatweakphysicalbindingofthe
