commonplace adj．普通的
molecular adj．分子的
sieve n．篩
練習(xí)：
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：概括大意與完成句子 （每題1分，共8分）
閱讀下面這篇短文，短文后有2項測試任務(wù)：（1）1---4 題要求從所給的6個選項中為第2--5 段每段選擇1個正確的小標(biāo)題；（2）第5--8題要求從所給的6個選項中選擇4個正確的選項，分別完成每個句子。請將答案涂在答題卡相應(yīng)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．
molecular adj．分子的
sieve n．篩
練習(xí)：
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：概括大意與完成句子 （每題1分，共8分）
閱讀下面這篇短文，短文后有2項測試任務(wù)：（1）1---4 題要求從所給的6個選項中為第2--5 段每段選擇1個正確的小標(biāo)題；（2）第5--8題要求從所給的6個選項中選擇4個正確的選項，分別完成每個句子。請將答案涂在答題卡相應(yīng)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．