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2014年职称英语 阅读判断(1) Inventor of LED

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-02-13 23:23
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2021年2月13日发(作者:periodically)


第一篇






Inventor of LED



When Nick Holonyak set out to create a new kind of visible lighting using semiconductor alloys, his colleagues


thought he was unrealistic. Today, his discovery of light- emitting diodes, or


LEDs, are used in everything from


DVDs to alarm clocks to airports. Dozens of his students have continued his work, developing lighting used in


traffic lights and other everyday technology.



On April 23, 2004, Holonyak received the $$500,000 Lemelson-MIT Prize at a ceremony in Washington. This


marks the 10th year that the Lemelson- MIT Program at the Massachusetts Institute of Technology (MIT) has


given the award to prominent inventors.



“Any time you get an award, big or little


, it’s always a surprise.” Holonyak said.



Holonyak, 75, was a student of John Bardeen, an inventor of the transistor, in the early 1950s. After graduate


school


, Holonyak worked at Bell Labs. He later went to General Electric


, where he invented a switch now


widely used in house dimmer switches


.



Later, Holonyak started looking into how semiconductors could be used to generate light. But while his colleagues


were looking at how to generate invisible light, he wanted to generate visible light. The LEDs he invented in 1962


now last about 10 times longer than incandescent bulbs, and are more environmentally friendly and cost effective.



Holonyak, now a professor of electrical and computer engineering and physics at the University of Illinois, said he


suspected that LEDs would become as commonplace as they are today, but didn’t re


alize how many uses they


would have.



“You don’t know in the beginning. You think you’re doing something important, you think it’s worth doing, but


you really can’t tell what the big payoff is going to be, and when, and how. You just don’t know.” he said.



The Lemelson-MIT Program also recognized Edith Flanigen, 75, with the $$100,000 Lemelson-MIT Lifetime


Achievement Award for her work on a new generation of “molecular sieves,” that can separate molecules by size.


词汇:



semiconductor /


5semikEn5dQktE


/ n.


半导体



incandescent /


7inkAn5desnt


/ adj.


白炽的



alloy /


5AlCi


/


n.


合金



bulb /


bQlb


/ n.


灯泡



emit /


i5mit


/ v.


发射,发出



commonplace /


5kCmEnpleis


/ adj.


普通的



diode /


5daiEud


/ n.


二极管



molecular /


molecular


/ adj.


分子的



dim /


dim


/ adj.


灯光昏暗的



sieve /


siv


/ n.


筛注释:



1. or


:即



2. big or little


:不论是大是小



3. after graduate school


:从研究生院毕业之后



4. General Electric


:通用电气公司



5. house dimmer switches


:家用减光开关练习:


< br>5


3


4


2


1

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-


-


-


-


-


-


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