（一）Eye-trackerLetsYouDragandDropFileswithaGlance根据以下的材料回答下列问题：Boredofusinga

共享题干题 （一）Eye-tracker Lets You Drag and Drop Files with a Glance 根据以下的材料回答下列问题： Bored of using a mouse? Soon you'll be able to change stuff on your computer screen-and then move it directly onto your smart phone or tablet (平板电脑 ) -with nothing more than a glance. A system called EyeDrop uses a head-mounted eye tracker that simultaneously records your field of view so it knows where you are looking on the screen. Gazing at an object-a photo, say-and then pressing a key, selects that object. It can then be moved from the screen to a tablet or smart phone just by glancing at the second device, as long as the two are connected wirelessly. "The beauty of using gaze to support this is that our eyes naturally focus on content that we want to acquire," says Jayson Turner, who developed the system with colleagues at Lancaster University, UK. Turner believes EyeDrop would be useful to transfer an interactive map or contact information from a public display to your smartphone or for sharing photos.A button needs to be used to select the object you are looking at otherwise you end up with the "Midas touch" ( 点石成金 ) effect, whereby everything you look at gets selected by your gaze, says Turner. "Imagine if your mouse clicked on everything it pointed at," he says.Christian Holz, a researcher in human-computer interaction at Yahoo Labs in Sunnyvale, California, says the system is a nice take on getting round this fundamental problem of using gaze-tracking to interact. "Eye Drop solves this in a slick ( 灵巧的 ) way by combining it with input on the touch devices we carry with us most of the time anyway and using touch input as a clutching mechanism," he says. "This now allows users to seamlessly (无缝的 ) interact across devices far and close in a very natural manner." While current eye-trackers are rather bulky, mainstream consumer devices are not too far away. Swedish firm Tobii is developing gaze-tracking technology that can be installed in laptops and tablets and is expected to be available to buy next year. And the Google Glass headset is expected to include eye-tracking in the future. Turner says he has also looked at how content can be cut and pasted or drag-and-dropped using a mix of gaze and taps on a touch screen. The system was presented at the Conference on Mobile and Ubiquitous Multimedia in Sweden, last week.1.[不定向选择题]Which of the following statement is tree of eye-trackers for consumer use__________A.They are costly B.They are expected to come out soon C.They are available D.They are installed in Google Glass headset 2.[不定向选择题]The word this in Paragraph 6 refers to__________A.application of gaze-tracking in human-computer interaction B.interaction between human and computer C.generalization of EyeDrop system D.combination of gaze-tracking with input on touch device

1.参考答案：B
参考解析：文章第七段第一句话While current eye-trackers are rather bulky，mainstream consumer devices are not too far away．消费者的设备将不远了，意思就是消费者的设变即将上市，因此选择B。
2.参考答案：D
参考解析：文章第六段第二句Eye Drop solves this in a slick(灵巧的)way by combining it with input on the touch devices we carry with us most of the time anyway and using touch input as a clutching mechanism。可以看出应该选择D，关键词combining。3.[不定向选择题]What is Turner likely to study next?A.How to present the system in publi B.How to get touch screen involve C.How to drag and drop with gaze and tap D.How to cut and paste content from a public displa

这个解释是对的