Question

8．Why Blue LED Lights Won the Nobel
The 2014Nobel Prize in physics went to three scientists who gave lighting a big change by inventing blue LED lights．A big change in lighting efficiency is under way around the world．
Save and green
LEDs use less energy than other forms of lighting．A typical LED bulb（燈泡） can produce around 83lumens per watt-a measure of how much brightness you can get from a unit of electrical power-much more efficient than other lighting facilities．
LEDs produce light by passing electric current through a semiconductor，while traditional bulbs pass current through a wire．The wasted heat energy is chiefly why traditional bulbs are so much less efficient．
LEDs also last about 30times longer than traditional bulbs，and many LED bulb products promise up to 25，000hours of use-more than 17years if you used one for about four hours a day．
Lighting the world
The lighting transformation is not only in homes．LEDs are also being used for street lights，public holiday and decorative displays，commercial buildings，and other large energy users．
Car lighting is another application where LEDs are making progress．LEDs used to be used only for daytime running lights，but now many new cars have LED headlights for night-time use．
LEDs also hold promise for bringing light to the more than 1.5billion people around the world without access to electricity，the Royal Swedish Academy of Sciences noted．Indeed，several proposed solutions to energy poverty include the distribution of LED lights，particularly solar-powered ones．
Digital displays
Without blue LEDs，the world wouldn't have back-lit smart phones，TV and computer LCD screens，blu-ray（藍光） players，many forms of lighting，and countless other products．
In the electronics industry，LEDs provide back lighting for LCD screens in many smart phones，laptops，and televisions．The LEDs are more energy efficient and allow for very thin displays．
Blu-ray players use blue LED lasers（激光） to read data off a digital optical disc．When these systems switched from using an infrared（紅外線） laser to a blue LED laser，it became possible to store five to 10times as much data．
LEDs are now being explored for their potential uses to transmit（傳送） data from the Internet across open space，similar to WiFi．Such a system could transmit a lot more data than WiFi alone．This high bandwidth is possible because LEDs can turn on and off millions of times per second．
The rise of LED lighting came at a time when people were just starting to be concerned about global warming．Because of LEDs'energy efficiency，using them for the world's lighting would affect environmental protection in a positive way．
Why Blue LED Lights Won the Nobel

The reason why blue LED lights won the 2014 Nobel Prize in physics is that they are to （81）resultin big changes in lighting．
Save and green	（82）Comparedwith other forms of lighting，LEDs are much more efficient because of the different ways they pass electric current． What's more，LED bulbs can be （83）used30 times longer than traditional bulbs．
Lighting the world	（84）Apart/Asidefrom household applications of LED bulbs，they can also be used as street lights and car headlights．
	Because of their high efficiency，LEDs，especially solar-powered ones，（85）promiseto light areas without access to electricity．
Digital displays	Many smart phones，laptops and televisions use LEDs to back-light their LCD （86）screens．
	By using blue LED lasers，blu-ray players are likely to store （87）moredata．
	People are now exploring more （88）potentialuses of LEDs such as transmitting data．
（89）Conclusion	LED lighting will have a positive （90）impact/influence/effecton environmental protection．

Answer 1

分析 本文是一篇任務型閱讀，文章用了"總-分-總"的結(jié)構(gòu)，開篇介紹了"藍色發(fā)光二極管"獲得諾貝爾物理學獎的原因是因為它為照明領(lǐng)域的發(fā)展帶來了根本性轉(zhuǎn)變．接下來講述了"藍色發(fā)光二極管"的優(yōu)點：節(jié)能和綠色、點亮世界、用于電子顯示．最后總結(jié)：LED燈會對環(huán)境產(chǎn)生積極的影響．

解答 81．result 82．Compared   83．used    84．Apart/Aside        85．promise
86．screens 87．more   88．potential    89．Conclusion   90．impact/influence/effect
81．result信息提取題．根據(jù)Why Blue LED Lights Won the Nobel部分中的：The 2014 Nobel Prize in physics went to three scientists who gave lighting a big change by inventing blue LED lights．可知"藍色發(fā)光二極管"獲得諾貝爾物理學獎的原因-它為照明領(lǐng)域的發(fā)展帶來了根本性轉(zhuǎn)變．result in的意思是：引起，導致．故該處填result．
82．Compared信息轉(zhuǎn)換題．根據(jù)Save and green部分中的：LEDs produce light by passing electric current through a semiconductor，while traditional bulbs pass current through a wire．The wasted heat energy is chiefly why traditional bulbs are so much less efficient．可知與其他形式的照明相比，LED的效率更高，因為它們傳遞電流的方式不同．be compared with的意思是：和…相比．故該處填Compared．
83．used原詞再現(xiàn)題．根據(jù)Save and green部分中的：LEDs also last about 30times longer than traditional bulbs，和if you used one for about four hours a day．LED燈泡可以使用的時間是傳統(tǒng)燈泡的30倍．故該處填used．
84．Apart/Aside詞語轉(zhuǎn)換題．根據(jù)Lighting the world部分中的：The lighting transformation is not only in homes．LEDs are also being used for street lights，public holiday and decorative displays，commercial buildings，and other large energy users．可知照明改造不僅可以用于家里，LED也可用路燈照明、公共假日、裝飾、商用建筑和其他大型能源用戶．而apart/aside from的意思是：除了…之外．故該處填Apart/Aside．    
85．promise信息提取題．根據(jù)Lighting the world部分中的：LEDs also hold promise for bringing light to the more than 1.5billion people around the world without access to electricity．可知LED也有望給世界各地超過15億沒有用上電的人帶來光明．故該處填promise．
86．screens原詞再現(xiàn)題．根據(jù)Digital displays部分中的：Without blue LEDs，the world wouldn't have back-lit smart phones，TV and computer LCD screens，可知沒有藍光LED，世界就不會有背光的智能手機、電視和電腦液晶屏．故該處填screens．
87．more信息轉(zhuǎn)換題．根據(jù)Digital displays部分中的：it became possible to store five to 10times as much data．可知它使存儲5到10倍的數(shù)據(jù)成為可能．即藍色激光二極管可能儲存更多的（more）數(shù)據(jù)．故該處填more． 
88．potential原詞再現(xiàn)題．根據(jù)Digital displays部分中的：LEDs are now being explored for their potential uses to transmit（傳送） data from the Internet across open space，similar to WiFi．可知目前人們正在探索LED從互聯(lián)網(wǎng)傳送數(shù)據(jù)到開放的空間的潛在用途，類似于WiFi．故該處填potential．  
89．Conclusion歸納詞填空．右邊的內(nèi)容是對文章的總結(jié)．conclusion的意思是總結(jié)．故該處填Conclusion．  
90．impact/influence/effect詞性轉(zhuǎn)換題．根據(jù)最后一段Because of LEDs'energy efficiency，using them for the world's lighting would affect environmental protection in a positive way．可知由于LED的能源效率，所以用它們照明時會對環(huán)境產(chǎn)生積極的影響．a(chǎn)ffect是動詞，此處填名詞．have a positive impact/influence/effect的意思是：對…有積極的影響．故該處填impact/influence/effect．

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