問題詳情：
(2019·全國卷Ⅰ)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 espaces. At present, these technologies are still expensive, though.
Researchers from Georgia Tech say that they have come up with a lowcost 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, plasticlike parts. The team hopes to make it to market in the near future.
篇章導讀：本文是一篇科研報道。來自佐治亞理工學院的研究人員發明了一種智能鍵盤，可以透過分析用戶的打字模式來判斷該用戶是不是安全訪客。
1．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 espace protection.
2．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.
3．What do the researchers expect of the smart keyboard?
A．It'll be environmentfriendly.
B．It'll reach consumers soon.
C．It'll be made of plastics.
D．It'll help speed up typing.
4．Where is this text most likely from?
A．A diary. B．A guidebook.
C．A novel. D．A magazine.
【回答】
1.D 推理判斷題。根據第一段最後一句以及第二段第一句可推知，研究者研發這種智能鍵盤是爲了降低網絡安全保護技術的成本。故選D。
2.C 推理判斷題。題幹問的是“是什麼讓智能鍵盤的發明成爲可能”，也就是問這一發明的核心依據是什麼。根據第二段中的“These patterns are unique to each , the keyboard can determine people's identities ...”可知，正是因爲每個人的打字模式不同，這種智能鍵盤就可以透過分析用戶的打字力度及節奏等來判斷該用戶是不是安全訪客。故選C。
3.B 細節理解題。根據題幹“研究者對於智能鍵盤有什麼期望”可直接定位到最後一段的最後一句話“該團隊希望在不久的將來將智能鍵盤推向市場”。故選B。
4.D 推理判斷題。根據本文的話題“智能鍵盤”以及第二段第一句中的“Researchers from Georgia Tech say that they have come up with a lowcost device ...”，尤其是其中的關鍵詞“Researchers” “lowcost device”等來推斷，這篇文章是一篇科研報道，最有可能出現在雜誌上。故選D。
知識點：科普環保類閱讀
題型：閱讀理解
