Thefactthatblindpeoplecanseethingsusingpartsoftheirbodiesapartfromtheireyesmayhelpustounderstandourfeelingsaboutcolor．Iftheycansensecolordifferencesthenperhapswetooareaffectedbycolorwithoutknowingit．Salesmenhavediscoveredbyexperienceoveralongperiodoftimethatsugarsellsbadlyingreenwrappingsthatbluefoodsareconsiderednotagreeabletothetasteandthatcosmetics（化妆品）shouldneverbepackedinbrown．Thesediscoverieshavegrownintoawholesubjectofcolorpsychology．

Someofourpreferencesareclearlypsychological．Darkblueisthecolorofthenightskyandthereforeconnectedwithcalmwhileyellowisadaycolorconnectedwithenergyandencouragement．Experimentshaveshownthatcolorspartlybecausetheyareconnectedwithpsychologyalsohaveadirecteffectonpeople'smind．Peopleinbrightredsurroundingsshowanincreaseinbreathingspeedheartbeatandbloodpressure．Redisexciting．Purebluehasexactlytheoppositeeffect;itisacalmingcolor．Beingexcitingredwaschosenasthesignalfordangerbutacloserstudyshowsthatabrightyellowcanproduceamorebasicstateofalarmsofireenginesinsomeadvancedareasarenowrushingaroundinbrightyellowcolorsthatstopbusestrucksandcars．

小题1:Thepassagetellsusthatsalesmenhave____．A．triedcolorsonblindpeopleB．foundoutthatcolorsaffectsalesC．developedaspecialsubjectofcolorpsychologyD．discoveredtherelationshipbetweencolorandpsychology小题2:Itcanbeinferredfromthepassagethat___．A．blindpeoplecannotsensecolordifferencesB．foodssellwellingreenorbluewrappingsC．whatcolorwepreferdependsonourstateofmindD．abrightcolorhasexactlytheoppositeeffecttored小题3:Themosteffectivecolorinthepassageforwarningpeopleis____．A．redB．darkblueC．greenD．brightyellow小题4:Ifsomeoneisinanangrymoodwhichcolorisbetterforhimtobecomequiet?A．Red．B．Darkblue．C．Brown．