問題詳情：
As data and identity theft becomes more and more common, the market is growing for biometric(生物測量) technologies—like fingerprint scans—to keep others out of private e-spaces. At present, these technologies are still expensive, though.
Researchers from Georgia Tech say that they have come up with a low-cost device(裝置) that gets around this problem: a smart keyboard. This smart keyboard precisely measures the cadence(節奏) with which one types and the pressure fingers apply to each key. The keyboard could offer a strong layer of security by analyzing things like the force of a user’s typing and the time between key presses. These patterns are unique to each person. Thus, the keyboard can determine people’s identities, and by extension, whether they should be given access to the computer it’s connected to—regardless of whether someone gets the password right.
It also doesn’t require a new type of technology that people aren’t already familiar with. Everybody uses a keyboard and everybody types differently.
In a study describing the technology, the researchers had 100 volunteers type the word “touch” four times using the smart keyboard. Data collected from the device could be used to recognize different participants based on how they typed, with very low error rates. The researchers say that the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive, plastic-like parts. The team hopes to make it to market in the near future.
28．Why do the researchers develop the smart keyboard?
A．To reduce pressure on keys. B．To improve accuracy in typing.
C．To replace the password system. D．To cut the cost of e-space protection.
29．What makes the invention of the smart keyboard possible?
A．Computers are much easier to operate.
B．Fingerprint scanning techniques develop fast.
C．Typing patterns vary from person to person.
D．Data security measures are guaranteed.
30．What do the researchers expect of the smart keyboard?
A．It’ll be environment-friendly. B．It’ll reach consumers soon.
C．It’ll be made of plastics. D．It’ll help speed up typing.
31．Where is this text most likely from?
A．A diary. B．A guidebook C．A novel. D．A magazine.
【回答】
28．D
29．C
30．B
31．D
【解析】
【分析】
這是一篇說明文。數據和身份盜竊變得越來越普遍，而指紋掃描等這些防盜技術仍然很昂貴的。本文介紹了一種新的防止個人身份和數據在電子空間被盜的高科技智能鍵盤，而且這項技術也不貴。
28．細節理解題。根據第一段的At present, these technologies are still expensive, though.和第二段的Researchers from Georgia Tech say that they have come up with a low-cost device that gets around this problem: a smart key board.可知，研究者們開發智能鍵盤是爲了降低e-space保護的成本。故選D。
29．細節理解題。根據第二段的The key board could offer a strong layer of security by analyzing things like the force of a user’s typing and the time between key presses. These patterns are unique to each person. Thus, the keyboard can determine people’s identities可知，用戶打字的力度和按鍵之間的時間是不同的，這使得智能鍵盤能夠識別人。故選C。
30．細節理解題。根據最後一段的The team hopes to make it to market in the near future.可知，研究者們希望智能鍵盤能早日面世。故選B。
31．推理判斷題。本文介紹了一種新的防止個人身份和數據在電子空間被盜的高科技智能鍵盤，由此可推斷本文最有可能來自於一本科學雜誌。故選D。
知識點：科普知識與現代技術
題型：閱讀理解
