首页
登录
职称英语
Smart Windows 1.Windows not only let
Smart Windows 1.Windows not only let
资格题库
2022-08-02
64
问题
Smart Windows 1.Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between easily. 2."It took us a long time to figure out what a window really is," says Claes Granqvist. He's a professor of solid-state physics at Uppsala University in Sweden. "It's contact with the outside world. You have to have visual contact with the surrounding world to feel well." So, windows and natural light are important for improving the way people feel when they're stuck indoors. 3.Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it's hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing cold air, which can feel so refreshing(使人清新的), actually suck up enormous amounts of electricity in buildings around the world. 4.Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing(用玻璃覆盖), and layering windows to make them more energy efficient. Smart windows go a step further. They use some chromogenic(发色的)technologies involving changes of color. 5.Electrochromic(电致色的) windows use electricity to change color. For example, a sheet of glass coated with thin layers of tungsten oxide(氧化钨)works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage(电压)is decreased, the window darkens until it's completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark. 6.One important feature that makes a smart window so smart is that it has a sort of "memory". All it takes is a small shock of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different."文章(31~35)Which of the following values of windows is NOT mentioned?A.They let light in to brighten the house.B.They let light in to heat the house.C.They let us have visual contact with the surrounding world.D.They let us think about the outside world.
选项
A.They let light in to brighten the house.
B.They let light in to heat the house.
C.They let us have visual contact with the surrounding world.
D.They let us think about the outside world.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/1493311.html
本试题收录于:
理工B题库理工类分类
理工B
理工类
相关试题推荐
Severalwindowshadbeensmashed.A:clean
Severalwindowshadbeensmashed.A:clean
Asmartwindowsissmartmainlybecause_
AccordingtoParagraph4,smartwindows
SmartWindows 1.Windowsnotonlylet
Severalwindowshadbeensmashed.A:broke
Infinedays,you'dbetteropenwindowst
随机试题
WhydosomanyAmericansdistrustwhattheyreadintheirnewspapers?TheAm
StudyStylesYouknowwhetheryou’reamorning
______thesameopportunity,heissuretosucceed.A、GivingB、TogiveC、GivenD、
[originaltext]W:Jim,Icanseethatyousimplycouldn’tgiveupsmoking.M:No
[originaltext]IfyouplantoremainintheUnitedStatesforanylengthof
下列有关木材的叙述中,正确的是( )。A.水曲柳属针叶木材 B.木材使用前需
下列保险费不得在所得税前扣除的是()。A.企业参加的财产保险 B.为投资
项目经理部对竣工工程成本核算的目的是()。A.考核项目管理绩效 B.寻
甲亢术前加服碘剂的主要目的是( )。A.减少甲状腺素释放 B.减少甲状腺血供
建设法的主体由()构成。A.法律、行政法规、部门规章、地方规章 B.建设法律、
最新回复
(
0
)