押全国卷24—27题 阅读理解B篇记叙文-备战2021年高考英语临考题号押题（全国卷1）

押全国卷第24—27题 阅读理解B篇记叙文 秘籍二 类型题2：推理判断类 题型破解 1 逻辑分析推断隐含意义 解题指导　 1、抓住特定信息进行逆向或正向推理：在原文中确定推理依据的位置或范围后，要善于抓住关键信息去分析判断； 2、.整合全文/段信息进行推断：有时需要在弄懂全文或全段的基础上，整合与题目相关的有效信息去进行综合推断，才能确定最佳选项。无论哪种推断形式必须以文章所提供的事实内容为依据，切忌凭空想象。 [典例]　(2019·全国卷Ⅰ·C篇) As data and identity theft becomes more and more common, the market is growing for biometric (生物测量) 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 (装置) that gets around this problem：a smart keyboard. This smart keyboard precisely measures the cadence (节奏) 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. 解析　D　根据第一段最后一句以及第二段第一句可推知，研究者研发这种智能键盘是为了降低网络安全保护技术的成本。故选D。 29．What makes the invention of the