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1、09年職稱英語理工類閱讀理解模擬試題SmartWindow????Windowsnotonlyletlightintocutdownanelectricityuseforlighting,butthelightcomingthroughthewindowalsoprovidesheat.However,windowsarenotsomethingpeopletypicallyassociatewithbeingacuttingedge1technology.Researchersarenowworkingonnewtechnologies
2、thatenableaw?indowtoquicklychangefromcleartodarkandanywhereinbetweenwithaflipofaswitch2.????“Ittookusalongtimetofigureoutwhatawindowreallyis,”saysClaesGranqvist.He’saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.“It’scontactwiththeoutsideworld.Youhavetohavevis
3、ualcontactwiththesurroundingworldtofeelwell.”So,windowsandnaturallightareimportantforimprovingthewaypeoplefeelwhenthey’restuckindoors.Yet,windowsaretheweaklinkinabuildingwhenitcomestoenergyandtemperaturecontrol.Inthewinter,coldairleaksin.Whenit’shotandsunny,sunlightstream
4、sin.Allofthissunlightcarrieslotsofheatandenergy.Andallofthisextraheatforcespeopletoturnontheirairconditioners.Producingblastsofcoldair,whichcanfeelsorefreshing,actuallysuckupenormousamountsofelectricityinbuildingsaroundtheworld.轉(zhuǎn)自學(xué)易網(wǎng)www.studyez.com轉(zhuǎn)自學(xué)易網(wǎng)www.studyez.com????
5、Windowshavebeenamajorfocusofenergyresearchforalongtime.Overtheyears,scientistshavecomeupwithavarietyofstrategiesforcoating,glazing,andlayeringwindowstomakethemmoreenergyefficient.Smartwindowsgoastepfurther.Theyusechromogenictechnologieswhichinvolvechangesofcolor.Electroch
6、romicwindowsuseelectricitytochangecolor.Forexample,asheetofglasscoatedwiththinlayersofchemicalcompoundsuchastungstenoxideworksabitlikeabattery.Tungstenoxideisclearwhenanelectricchargeisappliedanddarkwhenthechargeisremoved,thatis,whentheamountofvoltageisdecreased,thewindow
7、darkensuntilit’scompletelydarkafterallelectricityistakenaway.Soapplyingavoltagedetermineswhetherthewindowlooksclearordark.轉(zhuǎn)自學(xué)易網(wǎng)www.studyez.com?????Oneimportantfeaturethatmakesasmartwindowsosmartisthatithasasortof“memory.”Allittakesisasmalljoltofvoltagetoturnthewindowfromo
8、nestatetotheother.Then,itstaysthatway.Transitionstakeanywherefrom10secondstoafewminutes,dependin
