researchers at stanford university have developed a阅读理解答案

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1、ResearchersatStanfordUniversityhavedevelopeda阅读理解答案　　ResearchersatStanfordUniversityhavedevelopedanewmaterialthatcanmoveheatoutofbuildingsandintospace.Theresearcherssaythematerialcancoolbuildingsevenonhotdays.Thecoolingmaterialisaverythinsheetwithmanylayersthatcouldbeplacedonaroof

2、likesolarpanels.However,insteadofturningsunlightintoenergyassolarpanelsdo,thematerialturnsheatintoinfrared(红外线的)radiation.　　ShanhuiFanisanelectricalengineeringprofessoratStanfordUniversity.Hesaysthatthepanelshavealayerofmaterialthatislikesand.Hesaysthatthepanelsactlikeamirror.They

3、takeheatoutofbuildingsandreflectthelightfromthesun.Hesaysboththeheatandsunlightaresent100kilometersintoouterspace.　　”It’sastructurethatcoolsitselfwithoutelectricityinput,evenunderthesun.So,whatitdoesistobasicallyradiateheattoouterspaceandalsoreflectthesunlightsoitdoesn’tgetheatedu

4、pbythesun.Andthenetresultisyou　　　　getsomethingthatifyouputontheroofwillhaveatemperaturebelowambient(周围的)airtemperaturebyasignificantamount.”　　Thepanelsarecooltothetouch,eveninthesun.Researcherssaytheycanreducetheindoortemperaturetonearly5degreesCelsiusbelowthetemperatureoutside.　　

5、Mr.Fansaysitislikehavingawindowintospace.Hesaystheheatissentdirectlyintospacewithoutincreasingtheairtemperature.Hesaysbuildingsindevelopingcountriesthatdonothaveelectricityorairconditioningcouldusethepanels.”Inareaswhereelectricityisn’talwaysavailable,thereisasignificantpotentialb

6、enefitforstoringmedicineorevenfood.Inmanyofthesesituations,beingabletoreducethetemperatureisimportant.Andthiswouldprovideawaytodoit.”　　Theresearcherssaythemainproblemiscreatingactualcoolingsystemsusingthehigh-techpanels.Theysayitmaybepossibletodevelopacoolingspraythatcouldbeusedon

7、existingsolidstructur　　　　esandtheybelievethecoolingspraytechnologycouldbedevelopedinthenextthreetofiveyears.Theysayasmuchas15percentoftheenergyusedintheUnitedStatesisspentprovidingpowerforairconditioningsystems.　　58．Whichofthefollowingcanbestdescribetheadvantageofthenewdevice?　　an

8、denergy-saving.butdifficulttooper