阅读下面这篇短文，短文后列出了七个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请在答题卡上把A涂黑；如果该句提供的是错误信息，请在答题卡上把B涂黑；如果该句的信息文章中没有提及，请在答题卡上把C涂黑
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 1Oth year that the Lemelson-MIT Program at the Massachusetts Institute of Technology fMIT has given the award to prominent inventors．
“Anytime you get an award．big or little．it’s always a surprise．”Holonyrak 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$1 00，000
Lemelson-MIT Lifetime Achievement Award for her work on a new generation of“molecular sieves，”that can separate molecules by size．
词汇：
semiconductor n．半导体
alloy n．合金
diode n．二极管
incandescent adj．白炽的
bulb n．灯泡
commonplace adj．普通的
molecular adj．分子的
sieve n．筛
练习：
1．Holonyak’s colleagues thought he would fail in his research on LEDs at the time when he started it．
A．Right B．Wrong C．Not mentioned
2．Holonyak believed that his students that were working with him on the project would get the Lemelson．MIT Prize sooner or later．
A。Right B．Wrong C．Not mentioned
3．Holonyak was the inventor of the transistor in the early 1950s．
A．Right B．Wrong C．Not mentioned
4．Holonyak believed that LEDs would become very popular in the future．
A．Right B．Wrong C．Not mentioned
5．Holonyak said that you should not do anything you are not interested in．
A．Right B．Wrong C．Not mentioned
6． Edith Flanigen is the only co-inventor of LEDs．
A．Right B．Wrong C．Not mentioned
7．The Lemelson-MIT Prize has a history of over 100 years．
A．right B．Wrong C．Not mentioned
第三部分：概括大意与完成句子 （每题1分，共8分）
阅读下面这篇短文，短文后有2项测试任务：（1）1---4 题要求从所给的6个选项中为第2--5 段每段选择1个正确的小标题；（2）第5--8题要求从所给的6个选项中选择4个正确的选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。
Soot and Snow：a Hot Combination
l New research from NASA scientists suggests emissions of black soot alter the way sunlight reflects off snow．According to a computer simulation，black soot may be responsible for 25 percent of observed global warming over the past century．
2 Soot in the higher latitudes of the Earth。where ice is more common，absorbs more of the sun’s energy and warmth than an icy, white background．Dark-colored black carbon，or soot，absorbs sunlight，while lighter colored ice reflects sunlight．
3 Soot in areas with snow and ice may play all important role in climate change．Als0，if snow and ice covered areas begin melting。the warming effect increases，as the soot becomes more concentrated on the snow surface．“This provides a positive feedback，as glaciers and ice sheet smelt,they tend to get even dirtier,” said Dr．James Hansen，a researcher at NASA's Goddard Institute for Space Studies，NewYork．
4 Hansen found soot’s effect on snow albedo(solar energy reflected back to space)，which may be contributing to trends toward early springs in the Northern Hemisphere，such as thinning Arctic sea ice，melting glaciers and permafrost．Soot also is believed to play a role in changes in the atmosphere above the oceans and land．
5 “Black carbon reduces the amount of energy reflected by snow back into space，thus heating the snow surface more than if there were no black carbon~，”Hansen said．Soot’s increased absorption of solar energy is especially effective in warming the world’s climate. “This forcing is unusually effective，causing twice as much global warming as a carbon．dioxide forcing of the same magnitude，”Hansen noted．
6 Hansen cautioned．although the role of soot in altering global climate is substantial，it does not alter the fact that greenhouse gases are the primary cause of climate warming during the past century．Such gases are expected to be the largest climate forcing f10r也e rest of this century．
7 The researchers found that observed warming in the Northern Hemisphere was 1arge in the winter and spring at middle and high latitudes．These observations were consistent with the researchers’ climate model simulations，which showed some of the largest warming effects occurred when there were heavy snow cover and sufficient sunlight．
词汇：
soot n．煤烟，煤灰
emission n．释放，散发，排放
simulation v．模拟
latitude n．纬度
glacier n．冰川，冰河
albedo n．反照率
permafrost n．永冻层
forcing n．温室作用
dioxide n．二氧化物
magnitude n．量，大小
练习：
1．Paragraph 3____________
2．Paragraph 4____________
3．Paragraph 6____________
4．Paragraph 7____________
5．In the twentieth century，soot____________
6．Hansen cautioned that greenhouse gases____________
7. Black soot covered snow and ice____________
8．A soot forcing is unusually effective，which____________
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