2011年职称英语理工类教材A级新增文章.doc

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1、2011年职称英语理工类教材A级新增文章:阅读理解第四十五篇　　SomePeopleDoNotTasteSaltLikeOthers　　Low—saltfoodsmaybeharderforsomepeopletolikethanothers，accordingtoastudybyaPennStateCollegeofAgriculturalScienceslfoodscientist．Theresearchindicatesthatgeneticfactorsinfluencesomeofthedifferenceinthelevels

2、ofsaltweliketoeat．　　Thoseconclusionsareimportantbecauserecent，well—publicizedeffortstoreducethesaltcontentinfood2haveleftmanypeoplestrugglingtoacceptfarethatsimplydoesnottasteasgoodtothemasitdoestoothers3，pointedoutJohnHayes，assistantprofessoroffoodscience，whowasleadinves

3、tigator40nthestudy．　　DietshighinsaltCanincreasetheriskofhighbloodpressureandstroke．Thatiswhypublichealthexpertsandfoodcompaniesareworkingtogetheronwaystohelpconsumerslowersaltintakethroughfoodsthatareenjoyabletoeat．Thisstudyincreasesunderstandingofsaltpreferenceandconsump

4、tion．　　Theresearchinvolved87carefullyscreenedparticipantswhosampledsaltyfoodssuchassoupandchips，onmultipleoccasions，spreadoutoverweeks5．Testsubjectswere45：menand42women,reportedlyhealthy，ranginginagefrom20t040years．Thesamplewascomposedofindividualswhowerenotactivelymodify

5、ingtheirdietaryintakeanddidnotsmokecigarettes．Theyratedtheintensityoftasteonacommonlyusedscientificscale，rangingfrombarelydetectabletostrongestsensationofanykind．　　“Mostofuslikethetasteofsalt．However，someindividualseatmoresalt，bothbecausetheylikethetasteofsaltinessmore，an

6、dalsobecauseitisneededtoblockotherunpleasanttastesinfood,”saidHayes.“Supertasters,peoplewhoexperiencetastesmoreintensely,consumemoresaltthannontastersdo.Snackfoodshavesaltinessastheirprimaryflavor,andatleastforthesefoods,moreisbetter,sothesupertastersseemtolikethemmore.”　

7、　However,supertastersalsoneedhigherlevelsofsalttoblockunpleasantbittertastesinfoodssuchascheese，Hayesnoted．“Forexample，cheeseisawonderfulblendofdairyflavorsfromfermentedmilk，butalsobittertastesfromripeningthatareblockedbysalt，”hesaid．“Asupertasterfindslow-saltcheeseunplea

8、santbecausethebitternessistoopronounced6．”　　Hayescitedresearchdonemorethan75yearsagobyachemistna