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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(用玻璃覆蓋), and layering windows to make them more energy efficient. Smart windows go a step further. They use some chromogenic(發(fā)色的)technologies involving changes of color.
5.Electrochromic(電致色的) windows use electricity to change color. For example, a sheet of glass coated with thin layers of tungsten oxide(氧化鎢)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(電壓)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."
31.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.
參考答案：D
32.The expression "when it comes to" in Paragraph 3 is used to_____.
A.signal the arrival of a guest.
B.indicate the recovery of consciousness.
C.show our understanding of something.
D.introduce a new aspect of a topic.
參考答案：D
33.According to Paragraph 4, smart windows are the windows that_____.
A.are costed.
B.are glazed.
C.have several layers.
D.can change color.
參考答案：D
34.Which paragraph gives an account of the way electrochromic windows changing?
A.Paragraph 5.
B.Paragraph 3.
C.Paragraph 4.
D.Paragraph 6.
參考答案：A
35.A smart windows is smart mainly because_____.
A.it can change its size.
B.it can change its structure.
C.it can change the voltage of electricity.
D.it has a sort of memory.
參考答案：D
2016年職稱(chēng)英語(yǔ)考試真題及答案(匯總)
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