2012年4月7日的職稱英語考試一天一天臨近,廣大考生要抓緊時間復習了,小編為大家整理了職稱英語專項練習,祝大家考試順利過關。
Inventor of LED LED的發明者
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 1Oth year that the Lemelson-MIT Program at the Massachusetts Institute of Technology(MIT) has given the award to prominent inventors.
“Anytime 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 Ben Labs.He later went to General Electric, where he invented a switch now widely used in house dimmer switches.
Later, Holonyak started 1ooking into how semiconductors could be used to generate 1ight. But while his colleagues were 1ooking 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 realize 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.
譯文:
當Nick Holonyak著手用半導體合金創造一種新的可視照明設備的時候,同事們都認為他不現實。今天,他發現的發光二極管,或叫LED,使用范圍覆蓋從DVD到機場警鐘的一切東西。他的許多學生繼續著他的工作,發明了交通燈中使用的照明設備和其他的日用技術。
2004年4月23號,Holonyak在華盛頓的一次典禮上被授予麻省理工Lemelson項目的50萬美元的獎金。這是麻省理工的Lemelson—MIT項目第十年頒獎給杰出的發明人。
“任何時候你得了獎,不論是大是小,總是一分驚喜,”Holonyak說。
Holonyak,75歲,是上世紀50年代初期晶體管的發明者John Bardeen的學生。從研究生院畢業之后,Holonyak在Bell實驗室工作。之后去了通用電器公司,在那里他發明了一種開關,現在在家用減光開關中普遍使用。
后來,Holonyak開始研究如何應用半導體發電。當他的同事們正在研究如何發出看不見的光時,他卻想要看得見的光。1962年他發明的LED,現在的持續時間可以比白熾燈泡長十倍,對環境要求更少,更有效。
Holonyak現在是伊利諾斯大學電子、計算機工程和物理專業的教授,他說他預測LED的使用有可能像今天這樣普遍,但沒有意識到它會有多少用途。
“開始的時候你并不知道,你認為你在做一件很重要的事情,你認為它值得做,但是你不能說出要付出多大的代價,什么時候付出,怎樣付出。你并不知道,”他說。
Lemelson—MIT項目同樣授予75歲的Edith Flanigen 10萬美元的終身成就獎,她的工作是創造新一代的“分子篩”,也就是可以通過大小來分離分子。
練習:
1).Holonyak’s colleagues thought he would fail in his research on LEDs at the time when he started it.
A.Right
2).Holonyak believed that his students that were working with him on the project would get the Lemelson-MIT Prize sooner or later.
C.Not mentioned
3).Holonyak was the inventor of the transistor in the early 1950s.
B.Wrong
4).Holonyak believed that LEDs would become very popular in the future.
A.Right
5).Holonyak said that you should not do anything you are not interested in.
C.Not mentioned
6).Edith Flanigen is the only co-inventor of LEDs.
C.Not mentioned
7).The Lemelson-MIT Prize has a history of over 100 years.
B.Wrong
【輔導招生】
【特色班】2013年職稱英語“特色班”網上輔導招生方案 |
【精品班】2013年職稱英語“精品班”網上輔導招生方案 |
【實驗班】2013年職稱英語“實驗班”網上輔導招生方案 |
![]() |
上一篇: 2012年職稱英語考試綜合類模擬練習
學員:chuhero 感謝周涵老師,職稱英語過了。我覺得應該在這里跟老師說聲謝謝,老師的講課很實用,針對性強,是很有學習價值的課程,如果你想通過職稱英語考試,就聽周老師的課程吧。
學員:王仁芝 我去年7月開始差不多從零學起,堅持到考試,考了72分,十分感謝老師及網校的輔導!
學員:lilizhangx 職稱英語通過了!畢業10年了,沒怎么接觸英語,跟著周涵老師學習,一次通過!
學員:張洪杰 首先感謝周涵老師,好多年沒有學習了,經過老師的講解順利過關,這已經出乎我的預料,真的很激動,終于沒讓老師們失望,通過了,很高興。
學員:xsqxxlxzj 十多年沒有學習過英語了,通過職業培訓教育網3個多月的學習,83分通過職稱英語綜合C級考試,非常感謝周涵老師,謝謝您!
學員:best888zhou 畢業以后就沒有翻過英語了,丟了有七年了,雖然以前基礎還不錯,但這次真的是沒有信心,過年后開始復習,用了差不多一個月的時間,B級綜合考了80分,很開心,謝謝周涵老師的細致講解!
1、凡本網注明“來源:正保會計網校”的所有作品,版權均屬正保會計網校所有,未經本網授權不得轉載、鏈接、轉貼或以其他方式使用;已經本網授權的,應在授權范圍內使用,且必須注明“來源:正保會計網校”。違反上述聲明者,本網將追究其法律責任。
2、本網部分資料為網上搜集轉載,均盡力標明作者和出處。對于本網刊載作品涉及版權等問題的,請作者與本網站聯系,本網站核實確認后會盡快予以處理。
本網轉載之作品,并不意味著認同該作品的觀點或真實性。如其他媒體、網站或個人轉載使用,請與著作權人聯系,并自負法律責任。
3、本網站歡迎積極投稿
4、聯系方式:
編輯信箱:tougao@chinaacc.com
電話:010-82319999-2110
Copyright © 2000 - 2024 www.electedteal.com All Rights Reserved. 北京正保會計科技有限公司 版權所有
京B2-20200959 京ICP備20012371號-7 出版物經營許可證 京公網安備 11010802044457號