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  3. Scientists Johan Feenstra and Rob Hayes think they’ve figured out how a process called electrowetting can make paper that can do

Scientists Johan Feenstra and Rob Hayes think they’ve figured out how a process called electrowetting can make paper that can do

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问题     Scientists Johan Feenstra and Rob Hayes think they’ve figured out how a process called electrowetting can make paper that can do anything a videoscreen does. So far, though, all they’ve got to show for their efforts is a tiny piece of e-paper one centimeter square—only 225 pixels, or picture elements. That won’t be nearly enough for headlines and news videos. The only hint of the technology’s potential is a laptop presentation the inventors have set up. It features Professor Snape, Harry Potter’s teacher, holding an electronic newspaper with an embedded video clip. " That’s what we want," says Hayes.
    They’re likely to get it. Late last month in Tokyo, Sony took an important leap in this direction by introducing Librie, an e-book reader. Although it’s available only in black and white, Librie has the most important characteristic of paper: it reflects natural light. That means it can be read on sunny days or viewed from any angle. You can even choose your own font size. Is this finally the beginning of the end of paper?
    The answer is closer to "yes" than you may think. The holdup so far has been user-unfriendly screens, but now e-paper no longer relies on back-lit displays. A reflective display is easy on the eyes, with twice the contrast of computer screens and up to six times the brightness. It uses power only when changing the page, so a battery can last 300 hours. Several firms are competing for leadership. The Philip’s display on Librie uses technology from Massachusetts-based E-Ink Corp. An electric charge moves either black or white capsules to the surface of the page in patterns that form images. Gyricon Media uses rotating balls with one black side and one white side for signs and billboards. Other companies are focusing on improvements in liquid-crystal displays.     The next challenge is to add color. One option for books would be a simple color filter, but that would block two thirds of the light. Guofu Zhou, who runs the E-Ink project for Philips, thinks products with colored ink can be ready for the market within seven years. He’s now focusing on e-paper that can display 16 or more gradations of gray, which would come in handy in medical imaging or to display black-and-white photographs at home.
    Labs around the world are also racing to design a robust yet flexible backing. Philips researchers are working on a technology for laminating E-Ink on a plastic layer instead of glass, which would then roll into a pen-sized tube. A flexible product for mobile phones and digital cameras can be ready in three to five years.  
"The answer is closer to ’ yes’"(Line 1, Paragraph 3)because______.
选项 A、the back-lit displays is already sophisticated
B、the Philip’s display has the latest E-Ink technology
C、Gyricon Media has rotating balls technology
D、the technology barrier is about to be removed
答案D
解析 语义题。由题干直接定位至第三段首句，该句是对第二段末句的问题：这最终意味着纸质书籍开始消失吗?第三段第二句对closer to yes进行解释：目前存在的障碍是让用户感到不舒服的屏幕，但是现在电子纸张已经不再依赖背光显示。反射式显示屏的对比度是电脑屏幕的两倍，亮度是电脑屏幕的六倍，能使眼睛更轻松。可见这里closer to yes的意思是说原来存在的障碍即将消除了，故[D]为答案。第二句只是提到back—lit displays，并没有对其功能进行说明或评价，排除[A]。[B]是对该段第六句The Philip’sdisplay on Librie uses technology from Massachusetts一based E—Ink Corp．的转述，[C]是对倒数第二句中Gyricon Media uses rotating balls的转述，虽然两项的意思表述正确，但由于与首句间隔很远，与该句没有直接关系，故排除。
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