Unit 3 The Internet单元话题阅读理解练习-2025-2026学年高一英语人教版必修第二册

Unit 3 The Internet 单元话题阅读理解 Unit 3 The Internet单元话题：互联网与科技 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 Three Helpful Math Apps for Kids and Teens If your child needs help with math homework, wants to improve their exam grades, or just needs some extra practice while preparing for the SAT, it helps to have every possible tool at their disposal. Getting started is often half the challenge. Our guide on how to study for a math test can help them jump right into preparation mode. Here are some recommended apps: Microsoft Math Solver There is comfort in knowing that the math app your child is using comes from one of the biggest and most well-known companies and brands in the world. Microsoft Math Solver not only offers the ability to “scan (扫描) and solve” problems and even write them out by hand, but the app also provides step-by-step explanations, fun games, and more. Khan Academy App This app has over 47,000 practice problems. Users can choose from practice exercises, instructional videos, and interactive (互动的) challenges. Khan Academy also offers many other academic resources across different subjects. Through the app, kids and teens can access content ranging from elementary math to college-level material. Splash Math For math help in grades K-5, Splash Math offers a variety of resources and games to build the foundational skills students will need. Kids will love interacting with colorful characters and mastering fun challenges as they become more confident mathematicians. 1．What is a selling point of Microsoft Math Solver? A．It trains hands-on ability. B．It supports photo upload. C．It grades based on steps. D．It offers game-like challenges. 2．Why might Khan Academy App have so many users? A．It attracts many educators. B．It has instructional videos. C．It covers all grade levels. D．It teaches more than math. 3．What do the three apps have in common? A．Problem-solving tasks. B．Interactive exercises. C．Various ways of learning. D．Fun marketing strategies. 【答案】1．B 2．D 3．C 【导语】这是一篇说明文。介绍了三款适合儿童和青少年的数学学习类应用，分别说明了各应用的特点与优势。 1．细节理解题。根据Microsoft Math Solver部分““scan (扫描) and solve” problems (扫描解题)”可知，通过扫描(拍照)题目来解题，这是其主要卖点之一。故选B项。 2．推理判断题。根据Khan Academy App部分“Khan Academy also offers many other academic resources across different subjects. (Khan Academy还提供许多其他学科的学术资源)”可知，该应用不仅涵盖数学，还提供其他学科的资源，这可能是吸引大量用户的原因。故选D项。 3．推理判断题。Microsoft Math Solver提供““scan (扫描) and solve” problems and even write them out by hand (扫描解题、手写输入)”及“step-by-step explanations, fun games (分步解释，有趣的游戏)”；Khan Academy App提供“practice exercises, instructional videos, and interactive (互动的) challenges (练习题、教学视频、互动挑战)”；Splash Math提供“a variety of resources and games (各种资源和游戏)”。由此可知，三款应用都提供了多种不同的学习方式。故选C项。 Part of STEM learning is seeing and doing, and then recording and analyzing the results. But not all online or homeschool programs are set up to accommodate science experiments or other STEM learning activities. Let’s take a look at a few mind-blowing labs that can help bring STEM topics alive for your child’s online school experience. Weather Laboratories To make learning about weather accessible and fun, the National Oceanic and Atmospheric Administration (NOAA) created a lot of informative weather activities and virtual labs they recommend for students and educators. In fact, their weather science content for kids features a Weather Lab application that allows middle school students to predict weather patterns, and learn what happens when ocean currents and air masses interact. Simulations (模拟) for Science and Math It is a project of the University of Colorado Boulder and one of the richest single databases of online science interactives and virtual labs. Investigate more than 150 physics, chemistry, math, biology, and Earth science topics. Available in dozens of languages, the interactives are searchable by grade level, subject, and accessibility. Space Exploration Simulations The National Aeronautics and Space Administration (NASA) features many STEM learning activities for students in grades K-12. The interactive simulations are also gamified and make learning engaging and fun for your child. The app allows users to explore the universe and unlock stories of trailblazing scientists and their contributions to space exploration and science. Space Chemistry Workshop How do different substances react in special space conditions? Space Chemistry Workshop is the best place to observe how metals rust under simulated space radiation. It is fun! The chemical principles come alive in Space Chemistry Workshop! 1．Who are the intended readers? A．Parents. B．Students. C．Teachers. D．Researchers. 2．What makes Simulations for Science and Math different from the other labs? A．It covers the most subjects. B．It has a translation center. C．It offers gamified learning experiences. D．It provides multiple tools for recording. 3．Which lab allows visitors to learn about scientists’ contributions to space exploration? A．Weather Laboratories B．Simulations for Science and Math C．Space Exploration Simulations D．Space Chemistry Workshop 【答案】1．A 2．A 3．C 【导语】这是一篇应用文。介绍了几个适合线上/家庭教育的STEM实验平台，帮助孩子在线学习，直观体验STEM知识。 1．推理判断题。根据第一段“Let’s take a look at a few mind-blowing labs that can help bring STEM topics alive for your child’s online school experience. (让我们来看看一些令人兴奋的实验室，它们可以帮助你的孩子在网上学校体验到生动的STEM主题)”可知，文章的目标读者是家长。故选A项。 2．细节理解题。根据Simulations (模拟) for Science and Math部分“It is a project of the University of Colorado Boulder and one of the richest single databases of online science interactives and virtual labs. Investigate more than 150 physics, chemistry, math, biology, and Earth science topics. (它是科罗拉多大学博尔德分校的一个项目，也是在线科学互动和虚拟实验室最丰富的单一数据库之一。涵盖超过150个物理、化学、数学、生物和地球科学主题)”可知，它的特点是数据丰富、覆盖学科多。故选A项。 3．细节理解题。根据Space Exploration Simulations部分“The app allows users to explore the universe and unlock stories of trailblazing scientists and their contributions to space exploration and science. (该应用程序允许用户探索宇宙，了解开创性科学家的故事及其对太空探索和科学的贡献)”可知，能让使用者了解科学家在太空探索中贡献的是Space Exploration Simulations这一平台。故选C项。 A new draft rule has been released in China to make the online world safer. The rule requires that serious damage to important computer systems or the theft of key data must be reported to internet authorities quickly. The main goal of this policy is to reduce potential harm and better protect the nation’s critical digital infrastructure. The rule clearly defines what is considered an “extremely serious” cybersecurity event. This includes a complete stoppage of key information systems for six hours or more. It is also seen as extremely serious if a cyberattack leads to the leakage of a huge amount of personal information or affects the daily lives of a large part of a province’s population. Furthermore, if major government or news websites are inaccessible for over 24 hours due to attacks, they fall into this most serious category. For these extremely serious cases, the related companies must report to the authorities within one hour. The report should be more than just a simple notice. It must contain a detailed description of the event, including its duration and impact. The rule also demands a first study of the incident, providing information on possible attackers, the methods they used, and any system weaknesses they took advantage of. This helps authorities understand and respond to the threat more effectively. Companies that fail to report or provide false information will face punishment. The new rule also encourages any individual or social organization to report cybersecurity problems they discover. This policy is part of China’s broader efforts to strengthen online safety. In recent years, the country has already passed specific laws and its police have worked harder to fight against cybercrime, showing a strong commitment to building a safer digital environment for everyone. 1．What does the passage aim to do? A．To describe a new cybersecurity rule. B．To warn people about the dangers of hackers. C．To explain how to steal crucial data. D．To introduce the history of the internet. 2．What can be inferred from the new rule about reporting incidents? A．Companies are expected to handle all cyberattacks alone. B．The government values detailed and timely information. C．Most companies are already very good at reporting. D．Reporting is only necessary for government websites. 3．What is required in the incident report for an extremely serious case according to the passage? A．The exact names of the attackers. B．The company’s future business plans. C．A study of the attack methods and weaknesses. D．The amount of money lost in the incident. 4．Why does the government encourage the public to report cybersecurity issues? A．To create a shared sense of responsibility. B．To prove that the public is more knowledgeable. C．To reduce the workload of the police. D．To make it easier to catch specific companies. 【答案】1．A 2．B 3．C 4．A 【导语】本文是一篇说明文。文章主要介绍中国新发布的网络安全管理新规及相关要求和意义。 1．推理判断题。根据第一段中“A new draft rule has been released in China to make the online world safer.(中国发布了一项新的规章草案，旨在让网络世界更加安全) ”以及全文对新规内容、要求的阐述可知，文章旨在介绍这项新的网络安全规章。故选A项。 2．推理判断题。根据第三段中“For these extremely serious cases, the related companies must report to the authorities within one hour. The report should be more than just a simple notice. It must contain a detailed description of the event, including its duration and impact.(对于这些特别严重的情况，相关企业必须在一小时内向主管部门报告。这份报告不应只是一份简单的通知，必须包含对事件的详细描述，包括事件持续时间和造成的影响) ”可知，政府重视报告的时效性和详尽程度。故选B项。 3．细节理解题。根据第三段中“The rule also demands a first study of the incident, providing information on possible attackers, the methods they used, and any system weaknesses they took advantage of.(该规章还要求对事件进行初步分析，提供可能的攻击者、他们使用的攻击手段以及被利用的系统漏洞等相关信息)”可知，特别严重事件的报告需要包含对攻击手段和系统漏洞的分析。故选C项。 4．推理判断题。根据第四段中“The new rule also encourages any individual or social organization to report cybersecurity problems they discover. This policy is part of China’s broader efforts to strengthen online safety.(这项新规还鼓励任何个人和社会组织报告发现网络安全问题。该政策是中国加强网络安全这一更大举措的一部分) ”可知，政府鼓励公众举报是为了凝聚全社会的力量，建立共同的责任意识，从而更好地维护网络安全。故选A项。 A joint team from Peking University (PKU) and City University of Hong Kong has developed a groundbreaking photonic chip (光子芯片), which contributes to an ultra-wideband system (超宽带系统) capable of high-speed, frequency-tunable wireless transmission — a world-first achievement that is expected to enhance the reliability and efficiency of future 6G networks. What makes this chip special is its ability to cover an extremely wide frequency range — from 0.5 GHz to 115 GHz. This means a single chip can handle multiple frequency bands that previously required several separate devices. Its transmission speed can go beyond 120 gigabits per second, fast enough to download multiple high-definition movies in just one second. What makes this chip even more remarkable is its intelligence: it can automatically detect which frequency bands are crowded and switch to less busy ones. “This technology is like building a super-wide highway where electronic signals are vehicles and frequency bands are lanes (车道)”, explained Wang Xingjun, deputy dean of the School of Electronics at PKU. Previously, signals were crowded into one or two lanes, but now many lanes are available. If one lane is blocked, signals can switch flexibly to another, ensuring faster and smoother communication, Wang said. This breakthrough is based on Thin-Film Lithium Niobate (薄膜铌酸锂), a special material that allows the chip to process signals efficiently while reducing power consumption, solving a key problem in the development of practical 6G systems. Experiments have demonstrated that the system is capable of achieving wireless transmission rates higher than 100 Gbps, which is sufficient to stream 1,000 8K ultra-high-definition videos at the same time. It means that future 6G networks are expected to support cutting-edge applications such as remote surgery and advanced virtual reality, as well as provide connections from the deep sea to outer space. Currently, the research team is aiming to minimize its size, weight and power consumption. This progress showcases China’s growing strength in next-generation communication technology and brings us one step closer to the 6G era. 1．What is a key advantage of this new photonic chip? A．Lower production costs. B．Supports from universities. C．A broad frequency coverage. D．Maximized energy efficiency. 2．How does the author illustrate the chip’s intelligence? A．By comparing it to a flexible road system. B．By describing its application in communication. C．By listing its advantages over traditional devices. D．By explaining its role in energy consumption. 3．What does this progress indicate about China? A．Its economic competitiveness. B．Its leadership in 6G development. C．Its focus on international cooperation. D．Its efforts in cutting power consumption. 4．What’s the purpose of this passage? A．To explain challenges ahead in 6G network. B．To introduce a new chip for 6G communication. C．To compare differences between 5G and 6G networks. D．To discuss China’s attempts in global chip production. 【答案】1．C 2．A 3．B 4．B 【导语】这是一篇说明文。文章主要说明了北大与香港城大联合研发出全球首款超宽带光子芯片，频率覆盖广、传输速度快且具智能切换功能，助力6G发展，彰显中国下一代通信技术实力。 1．细节理解题。根据第二段“What makes this chip special is its ability to cover an extremely wide frequency range — from 0.5 GHz to 15 GHz.(这款芯片的独特之处在于其能够覆盖极其宽广的频率范围——从0.5GHz到15GHz )”可知，这种新型光子芯片的主要优势是频率覆盖范围广。故选C。 2．推理判断题。根据第三段“What makes this chip even more remarkable is its intelligence: it can automatically detect which frequency bands are crowded and switch to less busy ones. “This technology is like building a super-wide highway where electronic signals are vehicles and frequency bands are lanes”, explained Wang Xingjun, deputy dean of the School of Electronics at PKU. Previously, signals were crowded into one or two lanes, but now many lanes are available. If one lane is blocked, signals can switch flexibly to another, ensuring faster and smoother communication,Wang said.(这款芯片之所以更加出色，还在于其智能化的特点：它能够自动检测哪些频段使用率高，并切换到使用率较低的频段。北京大学电子学院副院长王兴军解释道：“这项技术就像修建了一条超宽的高速公路，电子信号就是车辆，而频段就是车道。”以前，信号只能挤在一条或两条车道上，但现在有了许多车道可供选择。如果一条车道堵塞了，信号可以灵活地切换到另一条车道，从而确保通信速度更快、更顺畅，王说道)”可知，作者通过将其与灵活的交通系统进行对比阐释芯片的智能性。故选A。 3．细节理解题。根据最后一段“This progress showcases China’s growing strength in next-generation communication technology and brings us one step closer to the 6G era.(这一进展彰显了中国在下一代通信技术方面不断增强的实力，并使我们离6G时代又迈进了一步)”可知，这一进展表明了中国在6G发展方面的领先地位。故选B。 4．推理判断题。根据第一段“A joint team from Peking University (PKU) and City University of Hong Kong has developed a groundbreaking photonic chip, which contributes to an ultra-wideband system capable of high-speed, frequency-tunable wireless transmission — a world-first achievement that is expected to enhance the reliability and efficiency of future 6G networks.(北京大学与香港城市大学联合团队研发出一款具有开创性意义的光子芯片，该芯片助力构建了一套超宽带系统，可实现高速、频率可调的无线传输 —— 这一全球首创成果有望提升未来6G网络的可靠性与效率)”结合文章主要说明了北大与香港城大联合研发出全球首款超宽带光子芯片，频率覆盖广、传输速度快且具智能切换功能，助力6G发展，彰显中国下一代通信技术实力。可知，这篇文章的目的是介绍一种用于6G通信的新芯片。故选B。 You really can make free phone calls using the Internet. Google Meet Google Meet is an app-to-app calling service that works across desktop and mobile platforms. Video meetings are encrypted (加密), it also supports audio calls, and you can form massive group calls with up to 100 people. What’s more appealing is that Google Meet displays real-time captions (字幕) as the other person is speaking. Google Voice Google Voice is one of the best ways to make a call over the Internet. You get a real phone number, so you can make free calls to an actual phone number. Free calls you make with Google Voice must be to numbers in the United States or Canada, and they’re limited to three hours. However, you can continue to make a free call to the same number over and over again. WhatsApp Meta-owned WhatsApp is a popular texting app with hundreds of millions of users. However, you can also call your WhatsApp friends right from the app using only your Internet connection. You just need to confirm your phone number to get started. Once you’re using the app, you can start a new conversation to clearly see which of your contacts are also using WhatsApp, and then you can call them for free no matter where in the world they’re located. Group calls can include as many as 32 people. 1．What is a feature of Google Meet? A．You can see what the speaker says. B．It can be used for free anywhere in the world. C．No password is needed to attend online meetings. D．Over 100 people can attend online meetings meantime. 2．Which of the following apps is limited to certain areas? A．Google Meet. B．Signal. C．Google Voice. D．WhatsApp. 3．In what section of a newspaper will the text probably appear? A．Health. B．Environment. C．Education. D．Technology. 【答案】1．A 2．C 3．D 【导语】这是一篇说明文。文章以简明扼要的方式介绍了几款能够实现互联网免费通话的服务应用，分别列举了它们的主要特点和功能。 1．细节理解题。由Google Meet部分中的“What’s more appealing is that Google Meet display s real-time captions (字幕) as the other person is speaking.(更吸引人的是，Google Meet在对方说话的同时，还能实时显示字幕。)”可知，Google Meet的一个特点是它可以显示说话者正在说什么的实时字幕。故选A项。 2．细节理解题。由Google Voice部分中的“Free calls you make with Google Voice must be to numbers in the United States or Canada, and they’re limited to three hours.(你用谷歌语音拨打的免费电话必须是在美国或加拿大的号码，而且通话时间限制在三个小时以内。)”可知，Google Voice的免费通话功能限制在北美地区，即美国和加拿大。故选C项。 3．推理判断题。通读全文，尤其是由文章第一段“You really can make free phone calls using the Internet. (你真的可以用互联网打免费电话。)”可知，本文主要介绍了四款可以利用互联网进行免费通话的应用程序，内容涉及技术产品及其功能，因此最有可能出现在报纸的科技版块。故选D项。 In recent years, China’s express delivery industry has experienced remarkable growth. This service has become an essential part of daily life for millions of people. It operates through a well-organized system that moves packages from sellers to buyers efficiently. Both urban and rural residents now enjoy equal access to goods from all over the country through this network. The delivery process begins when a customer places an order. The seller then prepares the item for shipment by packing it securely. A delivery worker collects the package and transports it to a nearby processing center, where workers and machines organize the parcels based on their final addresses. This careful organization ensures that each package reaches the right city and neighborhood. Modern technology plays a crucial role in making delivery services efficient. Companies employ advanced systems to monitor packages throughout their journey. Customers receive special numbers that let them follow their package’s progress online. In major processing centers, automated equipment can process huge quantities of parcels daily. These technological solutions help maintain reliable service standards. The express delivery industry provides significant advantages to the community. It enables online shopping platforms to function smoothly, giving people access to numerous products. The sector also employs many people as delivery workers and warehouse staff. Additionally, it helps businesses in less developed regions reach customers in major urban centers, promoting balanced economic development across different areas. 1．What does the underlined word “essential” in the first paragraph mean? A．unnecessary B．difficult C．important D．expensive 2．What is the main purpose of the processing center? A．To pack the items B．To take orders from customers C．To arrange packages by destination D．To help customers track packages 3．What does the third paragraph mainly talk about? A．Technology reduces service quality. B．Technology improves delivery efficiency. C．Packages are easily traced offline. D．Automated equipment can lower the packaging cost. 4．What can be a suitable title for the text? A．How to Shop Online B．The Development of Chinese Technology C．China’s Express Delivery System D．Finding Jobs in Delivery Services 【答案】1．C 2．C 3．B 4．C 【导语】本文是一篇说明文。本文介绍了中国快递业的显著发展，包括其作为日常生活重要部分的地位、高效的运作流程、现代科技在提升效率中的作用，以及对社区、就业和区域经济平衡的积极影响。 1．词句猜测题。根据第一段中的“In recent years, China’s express delivery industry has experienced remarkable growth. This service has become an essential part of daily life for millions of people. It operates through a well-organized system that moves packages from sellers to buyers efficiently. (近年来，中国快递业实现了显著增长。这项服务已成为数百万民众日常生活中必不可少的一部分。它通过一套组织完善的系统运作，将包裹从卖家高效地送达买家手中。)”可知，结合快递业的增长趋势和其高效服务的特点，可推断“essential”意为“重要的”，与“important”含义一致。故选C项。 2．细节理解题。根据第二段中的“A delivery worker collects the package and transports it to a nearby processing center, where workers and machines organize the parcels based on their final addresses. (快递员收取包裹后，将其运至附近的处理中心，在那里工作人员和机器会根据包裹的最终地址对其进行整理。)”可知，处理中心的主要用途是根据目的地整理包裹。故选C项。 3．主旨大意题。根据第三段中的“Modern technology plays a crucial role in making delivery services efficient. Companies employ advanced systems to monitor packages throughout their journey. Customers receive special numbers that let them follow their package’s progress online. In major processing centers, automated equipment can process huge quantities of parcels daily. These technological solutions help maintain reliable service standards. (现代科技在提升快递服务效率方面发挥着关键作用。企业采用先进系统全程监控包裹运输过程。消费者会收到专属单号，可在线追踪包裹动态。在大型处理中心，自动化设备每日可处理大量包裹。这些科技方案有助于维持可靠的服务标准。)”可知，整段围绕“科技如何提升快递效率”展开，核心内容是科技对快递效率的改善作用。故选B项。 4．主旨大意题。通读全文，第一段介绍中国快递业的发展与重要性，第二段阐述快递运作流程，第三段说明科技对快递的助力，第四段提及快递业的社会优势，所有内容均围绕“中国快递系统”展开，所以“中国快递系统”能全面概括文章核心，适合作为标题。故选C项。 In recent years, smart watches have become more and more popular among people of all ages. These small, wrist-worn devices (设备) are not just for telling time-they are like mini computers on your arm, offering a wide range of useful features. One of the most important functions (功能) of a smart watch is health tracking. Many smart watches can measure your heart rate, count your steps, and even monitor your sleep quality. For example, if you go for a run, the watch can record how far you run and how many calories you burn. This helps people stay healthy by letting them know more about their daily activities. Smart watches also make communication easier. You can receive calls, text messages, and social media notifications directly on your watch. This means you don’t have to take out your phone every time it rings or vibrates, which is especially convenient when you’re busy, like when you’re driving or exercising. However, smart watches also have some downsides. Some people worry about their battery life-most smart watches need to be charged every day. Others say that using a smart watch too much may distract them from studying or working. Also, the price of a good smart watch can be quite high, which makes it not affordable for everyone. Despite these small problems, smart watches are still a great invention. They make our lives more convenient and help us take better care of our health. As technology improves, we can expect smart watches to become even more useful in the future. 1．How does the author introduce the topic of smart watches in the first two paragraphs? A．By comparing them with traditional watches. B．By listing the main things they can do. C．By describing their popularity among the youth. D．By explaining how they are built. 2．Which of the following is NOT a health-tracking function of smart watches? A．Measuring heart rate. B．Counting steps. C．Recording phone calls. D．Monitoring sleep quality 3．The underlined word “distract” in Paragraph 4 probably means ________. A．to make someone lose confidence B．to take someone’s attention away C．to encourage someone to work harder D．to make someone feel relaxed 4．What is the author’s overall attitude toward smart watches? A．doubtful. B．unsupported. C．balanced. D．indifferent. 【答案】1．B 2．C 3．B 4．C 【导语】本文是一篇说明文，主要介绍了智能手表的功能、优缺点及未来发展趋势。 1．推理判断题。根据第一段“These small, wrist-worn devices (设备) are not just for telling time-they are like mini computers on your arm, offering a wide range of useful features.(这些小巧的腕戴式设备不仅用于显示时间，它们更像是你手臂上的微型电脑，具备多种实用功能)”及第二段对健康追踪功能的具体列举，可知作者是通过列举智能手表的主要功能来引入主题的，故选B。 2．细节理解题。根据第二段“Many smart watches can measure your heart rate, count your steps, and even monitor your sleep quality.(许多智能手表能够测量您的心率、计算您的步数，甚至还能监测您的睡眠质量)”可知，A、B、D项均为健康追踪功能。C项“记录通话”属于通信功能，与健康追踪无关。故选C。 3．词句猜测题。根据第四段“Some people worry about their battery life-most smart watches need to be charged every day.(有些人担心其电池续航能力——大多数智能手表都需要每天充电)”以及划线词所在句“using a smart watch too much may distract them from studying or working”可知，此处描述使用智能手表的缺点，即，过度使用智能手表可能会让人无法专注于学习或工作，因此“distract”意为“转移注意力”。故选B。 4．推理判断题。作者在文中既详细描述了智能手表的优点，如健康追踪、便利通信，也客观指出了其缺点，如电池续航、可能使人分心、价格高昂，最后在承认不足的基础上仍肯定其为伟大发明，体现了一种客观、平衡的态度。故选C。 Ariel Procaccia has always been fascinated by big questions and hard problems. As a teenager, his favorite book was A Brief History of Time, which explores deep questions about the universe. Today, Procaccia is a computer scientist at Harvard University, where he designs computer algorithms that tackle some big problems that directly affect people’s lives. One of Procaccia’s favorite projects is Spliddit. Org. It’s a free website that helps people divide stuff in a way that mathematically guarantees fairness. For example, one of the apps on Spliddit is a rental division. Say a few roommates rent an apartment and have different preferences for rooms. The goal is to assign the rooms and divide the rent in a way that each roommate gets the best deal. By now, Spliddit has been used by thousands of people. Procaccia is especially excited about their work on algorithms for selecting community committee representatives tasked with discussing important issues and making recommendations for policymakers. They’re randomly selected from volunteers. But the random selection needs to be done in a way that leads to a community committee that looks like the overall population. For example, there’s usually a similar number of men and women. Meanwhile, every volunteer has to have an impartial chance of participating in the community committee. Procaccia and his partners developed an algorithm that balances these needs. As a professor, Procaccia works closely with amazing graduate students. Over a typical five-year Ph.D．, a special, lifelong bond is formed. Professors and their students often speak of each other as “academic children” and “academic parents.” And as someone who has three actual children, Procaccia thinks there’s a lot of truth to that, especially when his students succeed and achieve their goals. Procaccia believes that much of computer science is essentially about finding the best ways to solve problems. With that kind of toolbox, he says, almost any challenge becomes approachable. So even for those who think computers aren’t their thing, computer science just might be. 1．What is the goal of Procaccia’s work? A．To develop mathematical tools for fun. B．To explore questions about the universe. C．To serve people with algorithms. D．To write a popular-science book. 2．What does the underlined word “impartial” in paragraph 3 mean? A．Fair. B．Unexpected. C．Unmatched. D．Limited. 3．How does Procaccia view the relationship with his students according to paragraph 4? A．It’s similar to family bonds. B．It’s strict professional cooperation. C．It’s a typical teacher-student bond. D．It’s a five-year challenging journey. 4．What’s Procaccia’s attitude toward computer science? A．He thinks it’s too difficult for most people. B．He sees it as a problem-solving tool in life. C．He believes it’s mainly about programming. D．He emphasizes theory over real-life applications. 【答案】1．C 2．A 3．A 4．B 【导语】本文是一篇说明文。文章聚焦于哈佛大学计算机科学家Ariel Procaccia的工作与理念。文章通过具体案例阐明其核心追求：利用算法解决直接影响人们生活的现实问题。 1．细节理解题。根据原文第一段“Today, Procaccia is a computer scientist at Harvard University, where he designs computer algorithms that tackle some big problems that directly affect people’s lives.(如今，Procaccia是哈佛大学的计算机科学家，他设计的计算机算法旨在解决一些直接影响人们生活的重大问题。)” 可知，Procaccia的工作目标是用算法为人们服务，解决实际问题。故选C。 2．词义猜测题。根据原文第三段“But the random selection needs to be done in a way that leads to a community committee that looks like the overall population. For example, there’s usually a similar number of men and women. Meanwhile, every volunteer has to have an impartial chance of participating in the community committee.(但随机选择需要以一种让社区委员会具有整体人口代表性的方式进行。例如，男性和女性的人数通常相近。同时，每位志愿者都必须有impartial机会参与社区委员会。)” 可知，前文强调选择需体现人口代表性（如男女比例均衡），核心是“公平”，因此“impartial”意为 “公平的”。故选A。 3．细节理解题。根据原文第四段“Professors and their students often speak of each other as “academic children” and “academic parents.” And as someone who has three actual children, Procaccia thinks there’s a lot of truth to that, especially when his students succeed and achieve their goals.(教授和学生们经常称彼此为 “学术子女” 和 “学术父母”。作为三个亲生孩子的父亲，Procaccia认为这很有道理，尤其是当他的学生成功并实现他们的目标时。)” 可知，Procaccia认为他与学生的关系类似于家庭纽带的关系。故选A。 4．推理判断题。根据原文第五段“Procaccia believes that much of computer science is essentially about finding the best ways to solve problems.(Procaccia认为，计算机科学在很大程度上本质上是关于寻找解决问题的最佳方法。)” 可知，他将计算机科学视为生活中解决问题的工具。故选B。 重难语篇提升练 Surgical students are less capable than their ancestors because they spend too much time with screens and not enough with physical materials. These claims from Roger Kneebone, professor of surgical education at Imperial College London, were widely reported last week. According to Kneebone, today’s students lack the dexterity that is important for sewing, cutting and stitching. He argues that this is because, instead of taking part in creative subjects that involve manual work during their school education, “a lot of things are reduced to swiping on a two-dimensional flat screen”. There hasn’t been much research into the effects of smartphones on surgical skills. However, one 2012 study found no statistically significant change in digital dexterity among frequent smartphone users, and it did find a significant improvement in reaction time. If anything, says Pete Etchells, a psychologist at Bath Spa University, UK, the use of digital technology of any kind — rather than smartphones specifically — is linked with a higher level of surgical skill. One 2007 study, for example, found that young surgeons who played a lot of video games made fewer errors in surgery and worked faster than those who didn’t. A randomized, controlled trial in 2012 found that surgery simulators(模拟) were less effective at training surgeons than just letting them play on games consoles. These were small studies that merely found modest effects, warns Etchells, but they don’t paint a picture of digital technology damaging the core skills of surgery. More broadly, says Andrew Przybylski of the Oxford Internet Institute, UK, Kneebone’s concerns and the resulting coverage are part of a wider reaction to the role of technology in our lives. Around a decade ago, we anticipated that digital experiences could lead to improvements in various kinds of real-world competence, such as brain-training games enhancing cognitive performance or video games boosting surgical dexterity. “As those hopes haven’t materialized, we rightly feel disappointed,” says Przybylski. There is also a society-wide fear about new technologies, which is often unfounded. Przybylski’s own work has found that, contrary to widespread concern around technology and young people, screen time seems to have a small, positive effect on teenagers in all but the most extreme of cases. “Collective anxiety about the role of smartphones, and social media companies, fuel this sort of fear of technology,” he says. Ultimately, Kneebone may turn out to be right that the decline in crafts and handiwork at school is reducing the quality of the surgical student intake. But there seems little evidence of it yet. In fact, it is probably a positive thing that our youngest surgeons are digitally literate. In the very near future, a surgeon’s ability to interact with technology — be that surgical robots or augmented reality — will become increasingly important. 1．What does the underlined word dexterity mean? A．Power of concentration. B．Experience of performing surgery. C．Capacity to use words or mind. D．Skills related to hand work. 2．What can we learn from the studies mentioned in Paragraph 3 and 4? A．People are confident that video games will boost cognitive performance. B．Surgeons won’t be less skillful when exposed to digital technology. C．Digital applications except smartphones strengthen surgical skills. D．Most surgeons are modest about their improved working efficiency. 3．The perceived decline of medical students’ surgical competence is due to___________. A．people’s fear about technology that is backed up by scientific evidence B．people’s failure to see the positive effects of digital technology emerge C．the increased time teenagers spent using smartphones and social media D．the decreased access to handiwork and crafts required in medical school 4．Which of the following may serve as the best title for this passage? A．Surgical Skills, Need Enhancing? B．Digital Devices, Enhance Reaction Time? C．Surgeons, Be Trained as Digital Natives? D．Screen Time, Bad for Young Surgeons? 【答案】1．D 2．B 3．B 4．D 【导语】这是一篇议论文。本文讨论了关于现代外科学生是否因过多使用电子设备而缺乏手术所需的手工技能的争议。Roger Kneebone教授认为，学生因减少手工活动而技能下降，但研究表明数字技术（如电子游戏）可能反而提升手术表现；同时讲述了相关争议背后的社会与认知原因。但从长远来看，数字素养对未来外科医生可能越来越重要。 1．词义猜测题。根据后文的定语从句“that is important for sewing, cutting and stitching(这对缝纫、切割和缝合很重要)”可知，句中“sewing(缝纫)”，“cutting(切割)”，“stitching(缝合)” 均为外科手术中手工操作相关动作，因此可推知，“dexterity”应指向“手术中与手工操作相关的能力”。故选D项。 2．推理判断题。文章第三段的研究“However, one 2012 study found no statistically significant change in digital dexterity among frequent smartphone users, and it did find a significant improvement in reaction time.(然而，2012年的一项研究发现，经常使用智能手机的人在数字灵巧度方面没有出现统计学上的显著变化，但反应时间确实有显著提高。)”发现频繁使用智能手机对数字灵巧度无负面影响，反而提升反应速度；同时结合第四段研究“One 2007 study, for example, found that young surgeons who played a lot of video games made fewer errors in surgery and worked faster than those who didn’t. A randomized, controlled trial in 2012 found that surgery simulators were less effective at training surgeons than just letting them play on games consoles.(例如，2007年的一项研究发现，经常玩电子游戏的年轻外科医生在手术中出现的失误更少，操作速度也比不玩电子游戏的医生更快。2012年的一项随机对照试验则表明，手术模拟器在培养外科医生方面的效果，不如仅仅让他们玩游戏机。)”可知，2007年研究显示玩电子游戏的外科医生手术错误更少、速度更快；2012年试验表明手术模拟器效果不如游戏机训练。由此推知，这些研究均指向数字技术未损害外科技能，即，外科医生接触数字技术后并不会变得技术能力下降。故选B项。 3．细节理解题。根据文章第五段内容“Around a decade ago, we anticipated that digital experiences could lead to improvements in various kinds of real-world competence, such as brain-training games enhancing cognitive performance or video games boosting surgical dexterity. ‘As those hopes haven’t materialized, we rightly feel disappointed,’ says Przybylski.(大约十年前，我们曾预期数字体验能够促进各种实际能力的提升，比如脑力训练游戏能够提高认知能力，或者视频游戏能够增强手术技能。但“由于这些期望并未实现，我们理所当然地感到失望。”Przybylski说道。)”可知，担忧源于对技术作用的过度期待落空，即，这种“能力下降”的认知主要源于人们未看到技术积极效果显现的失望。故选B项。 4．主旨大意题。通过阅读文章内容可知，文章首段内容“Surgical students are less capable than their ancestors because they spend too much time with screens and not enough with physical materials. These claims from Roger Kneebone, professor of surgical education at Imperial College London, were widely reported last week.(外科专业学生的能力不如前辈，因为他们花太多时间在屏幕上，而在实物操作上投入的时间不足。伦敦帝国理工学院外科教育教授Roger Kneebone的这些说法上周得到了广泛报道。)”提出了Roger Kneebone的观点“屏幕时间损害外科学生技能”，却在第三段“However, one 2012 study found no statistically significant change in digital dexterity among frequent smartphone users, and it did find a significant improvement in reaction time.(然而，2012 年的一项研究发现，经常使用智能手机的人在数字灵巧度方面没有出现统计学上的显著变化，但反应时间确实有显著提高。)”，第四段“These were small studies that merely found modest effects, warns Etchells, but they don’t paint a picture of digital technology damaging the core skills of surgery.(Etchells警告说，这些只是小型研究，只发现了适度的影响，但它们并没有描绘出数字技术损害手术核心技能的画面。)”用“研究发现”进行了反驳。由此可知，文章核心围绕Kneebone 的观点“屏幕时间有害外科技能”为话题，用“研究”反驳展开，主旨是“探讨屏幕时间对年轻外科医生的影响是否负面”。D项“Screen Time, Bad for Young Surgeons?(屏幕时间对年轻外科医生有害吗？)”贴合主旨要义，可作最佳标题。故选D项。 Recently, a research team from Shanghai-based Fudan University has developed the world’s first full-featured, 2D flash chip enabled by system integration, marking a milestone in the engineering of 2D electronic devices. This breakthrough integrates the ultrafast 2D flash memory device with a mature silicon (硅)-based complementary metal oxide (氧化物) semiconductor, or CMOS technology, providing a model to accelerate the transition of next-generation disruptive (颠覆性的) devices from research to application. However, the process of industrializing disruptive innovations for system-level applications often takes a prolonged time. The team from Fudan University’s State Key Laboratory of Integrated Chips and Systems strategically integrated their 2D flash technology into the industry’s CMOS platform, providing a way to turn the concept of the 2D electronics device into a complex system application. A core challenge for the team was how to integrate the 2D materials with CMOS technology without compromising performance. The surface of a CMOS circuit is quite rough due to the underlying components, while the 2D semiconductor materials are only 1 to 3 atoms thick. Such materials can easily break if they are directly placed on CMOS circuits. “This is like looking at Shanghai from space. It seems flat, but within the city, there are buildings of varying heights — over 400 meters, 100 meters, or just a few dozen meters. If you lay a thin film over the city, the film itself would not be flat,” said Zhou, adding that this explains why researchers worldwide in 2D semiconductors can only process materials on extremely flat native substrates so far. In their research, the team decided to start with 2D materials that innerly possess a certain degree of flexibility. By employing a modular integration approach, the scientists fabricated the 2D memory circuits on the mature CMOS circuits and used high-density (密度) interconnection technology for communication between different modules. This innovative core process allows for the tight coupling of 2D materials with CMOS substrates (基底) at the atomic scale. “This research represents a ‘source technology’ in China’s integrated circuit field, allowing the country to take the lead in next generation core storage technologies,” said Zhou. 1．What’s the significance of the newly-developed 2D flash chip? A．It will support advancing information technology to a new era. B．It will be a key process model between vision and application. C．It may boost application of the next-generation disruptive devices. D．It aims to turn the concept of 2D electronics device more complex. 2．What’s the purpose of the example in Paragraph 5? A．To prove that Shanghai is not flat within the city. B．To prove that micro views are different from the macro (宏观的) ones. C．To illustrate the importance of flat substrates in material processing. D．To reveal the delicateness of the 2D semiconductor materials. 3．What can be learnt from Paragraph 6? A．The problem was fixed through changing the flexibility of the material. B．Creative techniques were used to attach the material to the atomic scale. C．Combining 2D circuits with CMOS leads to efficient connections between modules. D．The modular integration approach is the only nuclear part mentioned in the process. 4．What’s the best title of the passage? A．China Takes the Lead in Core Storage Technologies. B．Disruptive Devices Are Applied for the First Time Globally. C．Chinese Scientists Achieved in Circuit Advancing. D．Breakthrough in 2D Flash Chip Achieved. 【答案】1．C 2．C 3．B 4．D 【导语】本文是一篇说明文。主要介绍复旦大学研究团队研发出全球首款全功能二维闪存芯片的技术突破、核心挑战及重要意义。 1．细节理解题。根据第二段中的“This breakthrough integrates the ultrafast 2D flash memory device with a mature silicon (硅)-based complementary metal oxide (氧化物) semiconductor, or CMOS technology, providing a model to accelerate the transition of next-generation disruptive (颠覆性的) devices from research to application.(这一突破将超高速二维闪存器件与成熟的硅基互补金属氧化物半导体（CMOS）技术相结合，为加速下一代颠覆性器件从研发到应用的转型提供了范例。)”可知，该芯片的核心意义是为下一代颠覆性器件的应用转型提供支持，即推动其应用落地。选C项。 2．推理判断题。根据第五段““This is like looking at Shanghai from space. It seems flat, but within the city, there are buildings of varying heights — over 400 meters, 100 meters, or just a few dozen meters. If you lay a thin film over the city, the film itself would not be flat,” said Zhou, adding that this explains why researchers worldwide in 2D semiconductors can only process materials on extremely flat native substrates so far.(“这就像从太空俯瞰上海 —— 表面看似平坦，但城市内部却有高低各异的建筑，有的超过 400 米，有的100米，还有的只有几十米。如果在这座城市上空铺一层薄膜，这层膜本身肯定无法保持平整。” 周教授解释道，并补充说，这也正是目前全球范围内的二维半导体研究人员只能在极其平整的原生基底上加工材料的原因)”可知，周教授用“从太空看上海看似平坦，实则有高低建筑，薄胶片无法平整覆盖”的例子，是为了通俗地说明“二维材料需要平整基底才能加工”的核心逻辑，即平整基底在材料加工中的重要性。故选C项。 3．细节理解题。根据第六段中的“By employing a modular integration approach, the scientists fabricated the 2D memory circuits on the mature CMOS circuits and used high-density (密度) interconnection technology for communication between different modules. This innovative core process allows for the tight coupling of 2D materials with CMOS substrates (基底) at the atomic scale.(通过采用模块化集成方法，科学家们在成熟的CMOS电路上制造了二维存储电路，并使用高密度互连技术实现不同模块间的通信。这一创新的核心工艺使二维材料与CMOS基底在原子尺度上实现紧密耦合。)”可知，研究团队通过创新技术（模块化集成、高密度互连）实现了二维材料与基底的原子级结合。故选B项。 4．主旨大意题。通读全文，第一段核心信息为“复旦大学研发出全球首款全功能二维闪存芯片，标志着二维电子器件工程的里程碑”，后文围绕该技术突破的意义、面临的挑战及解决方案展开。短文的最佳标题为D选项“二维闪存芯片的技术突破”。故选D项。 学科网（北京）股份有限公司 $ Unit 3 The Internet 单元话题阅读理解 Unit 3 The Internet单元话题：互联网与科技 本资料共10篇专题训练，从上到下依次按照难度分为基础语篇巩固练和重难语篇提升练 基础语篇巩固练 Three Helpful Math Apps for Kids and Teens If your child needs help with math homework, wants to improve their exam grades, or just needs some extra practice while preparing for the SAT, it helps to have every possible tool at their disposal. Getting started is often half the challenge. Our guide on how to study for a math test can help them jump right into preparation mode. Here are some recommended apps: Microsoft Math Solver There is comfort in knowing that the math app your child is using comes from one of the biggest and most well-known companies and brands in the world. Microsoft Math Solver not only offers the ability to “scan (扫描) and solve” problems and even write them out by hand, but the app also provides step-by-step explanations, fun games, and more. Khan Academy App This app has over 47,000 practice problems. Users can choose from practice exercises, instructional videos, and interactive (互动的) challenges. Khan Academy also offers many other academic resources across different subjects. Through the app, kids and teens can access content ranging from elementary math to college-level material. Splash Math For math help in grades K-5, Splash Math offers a variety of resources and games to build the foundational skills students will need. Kids will love interacting with colorful characters and mastering fun challenges as they become more confident mathematicians. 1．What is a selling point of Microsoft Math Solver? A．It trains hands-on ability. B．It supports photo upload. C．It grades based on steps. D．It offers game-like challenges. 2．Why might Khan Academy App have so many users? A．It attracts many educators. B．It has instructional videos. C．It covers all grade levels. D．It teaches more than math. 3．What do the three apps have in common? A．Problem-solving tasks. B．Interactive exercises. C．Various ways of learning. D．Fun marketing strategies. Part of STEM learning is seeing and doing, and then recording and analyzing the results. But not all online or homeschool programs are set up to accommodate science experiments or other STEM learning activities. Let’s take a look at a few mind-blowing labs that can help bring STEM topics alive for your child’s online school experience. Weather Laboratories To make learning about weather accessible and fun, the National Oceanic and Atmospheric Administration (NOAA) created a lot of informative weather activities and virtual labs they recommend for students and educators. In fact, their weather science content for kids features a Weather Lab application that allows middle school students to predict weather patterns, and learn what happens when ocean currents and air masses interact. Simulations (模拟) for Science and Math It is a project of the University of Colorado Boulder and one of the richest single databases of online science interactives and virtual labs. Investigate more than 150 physics, chemistry, math, biology, and Earth science topics. Available in dozens of languages, the interactives are searchable by grade level, subject, and accessibility. Space Exploration Simulations The National Aeronautics and Space Administration (NASA) features many STEM learning activities for students in grades K-12. The interactive simulations are also gamified and make learning engaging and fun for your child. The app allows users to explore the universe and unlock stories of trailblazing scientists and their contributions to space exploration and science. Space Chemistry Workshop How do different substances react in special space conditions? Space Chemistry Workshop is the best place to observe how metals rust under simulated space radiation. It is fun! The chemical principles come alive in Space Chemistry Workshop! 1．Who are the intended readers? A．Parents. B．Students. C．Teachers. D．Researchers. 2．What makes Simulations for Science and Math different from the other labs? A．It covers the most subjects. B．It has a translation center. C．It offers gamified learning experiences. D．It provides multiple tools for recording. 3．Which lab allows visitors to learn about scientists’ contributions to space exploration? A．Weather Laboratories B．Simulations for Science and Math C．Space Exploration Simulations D．Space Chemistry Workshop A new draft rule has been released in China to make the online world safer. The rule requires that serious damage to important computer systems or the theft of key data must be reported to internet authorities quickly. The main goal of this policy is to reduce potential harm and better protect the nation’s critical digital infrastructure. The rule clearly defines what is considered an “extremely serious” cybersecurity event. This includes a complete stoppage of key information systems for six hours or more. It is also seen as extremely serious if a cyberattack leads to the leakage of a huge amount of personal information or affects the daily lives of a large part of a province’s population. Furthermore, if major government or news websites are inaccessible for over 24 hours due to attacks, they fall into this most serious category. For these extremely serious cases, the related companies must report to the authorities within one hour. The report should be more than just a simple notice. It must contain a detailed description of the event, including its duration and impact. The rule also demands a first study of the incident, providing information on possible attackers, the methods they used, and any system weaknesses they took advantage of. This helps authorities understand and respond to the threat more effectively. Companies that fail to report or provide false information will face punishment. The new rule also encourages any individual or social organization to report cybersecurity problems they discover. This policy is part of China’s broader efforts to strengthen online safety. In recent years, the country has already passed specific laws and its police have worked harder to fight against cybercrime, showing a strong commitment to building a safer digital environment for everyone. 1．What does the passage aim to do? A．To describe a new cybersecurity rule. B．To warn people about the dangers of hackers. C．To explain how to steal crucial data. D．To introduce the history of the internet. 2．What can be inferred from the new rule about reporting incidents? A．Companies are expected to handle all cyberattacks alone. B．The government values detailed and timely information. C．Most companies are already very good at reporting. D．Reporting is only necessary for government websites. 3．What is required in the incident report for an extremely serious case according to the passage? A．The exact names of the attackers. B．The company’s future business plans. C．A study of the attack methods and weaknesses. D．The amount of money lost in the incident. 4．Why does the government encourage the public to report cybersecurity issues? A．To create a shared sense of responsibility. B．To prove that the public is more knowledgeable. C．To reduce the workload of the police. D．To make it easier to catch specific companies. A joint team from Peking University (PKU) and City University of Hong Kong has developed a groundbreaking photonic chip (光子芯片), which contributes to an ultra-wideband system (超宽带系统) capable of high-speed, frequency-tunable wireless transmission — a world-first achievement that is expected to enhance the reliability and efficiency of future 6G networks. What makes this chip special is its ability to cover an extremely wide frequency range — from 0.5 GHz to 115 GHz. This means a single chip can handle multiple frequency bands that previously required several separate devices. Its transmission speed can go beyond 120 gigabits per second, fast enough to download multiple high-definition movies in just one second. What makes this chip even more remarkable is its intelligence: it can automatically detect which frequency bands are crowded and switch to less busy ones. “This technology is like building a super-wide highway where electronic signals are vehicles and frequency bands are lanes (车道)”, explained Wang Xingjun, deputy dean of the School of Electronics at PKU. Previously, signals were crowded into one or two lanes, but now many lanes are available. If one lane is blocked, signals can switch flexibly to another, ensuring faster and smoother communication, Wang said. This breakthrough is based on Thin-Film Lithium Niobate (薄膜铌酸锂), a special material that allows the chip to process signals efficiently while reducing power consumption, solving a key problem in the development of practical 6G systems. Experiments have demonstrated that the system is capable of achieving wireless transmission rates higher than 100 Gbps, which is sufficient to stream 1,000 8K ultra-high-definition videos at the same time. It means that future 6G networks are expected to support cutting-edge applications such as remote surgery and advanced virtual reality, as well as provide connections from the deep sea to outer space. Currently, the research team is aiming to minimize its size, weight and power consumption. This progress showcases China’s growing strength in next-generation communication technology and brings us one step closer to the 6G era. 1．What is a key advantage of this new photonic chip? A．Lower production costs. B．Supports from universities. C．A broad frequency coverage. D．Maximized energy efficiency. 2．How does the author illustrate the chip’s intelligence? A．By comparing it to a flexible road system. B．By describing its application in communication. C．By listing its advantages over traditional devices. D．By explaining its role in energy consumption. 3．What does this progress indicate about China? A．Its economic competitiveness. B．Its leadership in 6G development. C．Its focus on international cooperation. D．Its efforts in cutting power consumption. 4．What’s the purpose of this passage? A．To explain challenges ahead in 6G network. B．To introduce a new chip for 6G communication. C．To compare differences between 5G and 6G networks. D．To discuss China’s attempts in global chip production. You really can make free phone calls using the Internet. Google Meet Google Meet is an app-to-app calling service that works across desktop and mobile platforms. Video meetings are encrypted (加密), it also supports audio calls, and you can form massive group calls with up to 100 people. What’s more appealing is that Google Meet displays real-time captions (字幕) as the other person is speaking. Google Voice Google Voice is one of the best ways to make a call over the Internet. You get a real phone number, so you can make free calls to an actual phone number. Free calls you make with Google Voice must be to numbers in the United States or Canada, and they’re limited to three hours. However, you can continue to make a free call to the same number over and over again. WhatsApp Meta-owned WhatsApp is a popular texting app with hundreds of millions of users. However, you can also call your WhatsApp friends right from the app using only your Internet connection. You just need to confirm your phone number to get started. Once you’re using the app, you can start a new conversation to clearly see which of your contacts are also using WhatsApp, and then you can call them for free no matter where in the world they’re located. Group calls can include as many as 32 people. 1．What is a feature of Google Meet? A．You can see what the speaker says. B．It can be used for free anywhere in the world. C．No password is needed to attend online meetings. D．Over 100 people can attend online meetings meantime. 2．Which of the following apps is limited to certain areas? A．Google Meet. B．Signal. C．Google Voice. D．WhatsApp. 3．In what section of a newspaper will the text probably appear? A．Health. B．Environment. C．Education. D．Technology. In recent years, China’s express delivery industry has experienced remarkable growth. This service has become an essential part of daily life for millions of people. It operates through a well-organized system that moves packages from sellers to buyers efficiently. Both urban and rural residents now enjoy equal access to goods from all over the country through this network. The delivery process begins when a customer places an order. The seller then prepares the item for shipment by packing it securely. A delivery worker collects the package and transports it to a nearby processing center, where workers and machines organize the parcels based on their final addresses. This careful organization ensures that each package reaches the right city and neighborhood. Modern technology plays a crucial role in making delivery services efficient. Companies employ advanced systems to monitor packages throughout their journey. Customers receive special numbers that let them follow their package’s progress online. In major processing centers, automated equipment can process huge quantities of parcels daily. These technological solutions help maintain reliable service standards. The express delivery industry provides significant advantages to the community. It enables online shopping platforms to function smoothly, giving people access to numerous products. The sector also employs many people as delivery workers and warehouse staff. Additionally, it helps businesses in less developed regions reach customers in major urban centers, promoting balanced economic development across different areas. 1．What does the underlined word “essential” in the first paragraph mean? A．unnecessary B．difficult C．important D．expensive 2．What is the main purpose of the processing center? A．To pack the items B．To take orders from customers C．To arrange packages by destination D．To help customers track packages 3．What does the third paragraph mainly talk about? A．Technology reduces service quality. B．Technology improves delivery efficiency. C．Packages are easily traced offline. D．Automated equipment can lower the packaging cost. 4．What can be a suitable title for the text? A．How to Shop Online B．The Development of Chinese Technology C．China’s Express Delivery System D．Finding Jobs in Delivery Services In recent years, smart watches have become more and more popular among people of all ages. These small, wrist-worn devices (设备) are not just for telling time-they are like mini computers on your arm, offering a wide range of useful features. One of the most important functions (功能) of a smart watch is health tracking. Many smart watches can measure your heart rate, count your steps, and even monitor your sleep quality. For example, if you go for a run, the watch can record how far you run and how many calories you burn. This helps people stay healthy by letting them know more about their daily activities. Smart watches also make communication easier. You can receive calls, text messages, and social media notifications directly on your watch. This means you don’t have to take out your phone every time it rings or vibrates, which is especially convenient when you’re busy, like when you’re driving or exercising. However, smart watches also have some downsides. Some people worry about their battery life-most smart watches need to be charged every day. Others say that using a smart watch too much may distract them from studying or working. Also, the price of a good smart watch can be quite high, which makes it not affordable for everyone. Despite these small problems, smart watches are still a great invention. They make our lives more convenient and help us take better care of our health. As technology improves, we can expect smart watches to become even more useful in the future. 1．How does the author introduce the topic of smart watches in the first two paragraphs? A．By comparing them with traditional watches. B．By listing the main things they can do. C．By describing their popularity among the youth. D．By explaining how they are built. 2．Which of the following is NOT a health-tracking function of smart watches? A．Measuring heart rate. B．Counting steps. C．Recording phone calls. D．Monitoring sleep quality 3．The underlined word “distract” in Paragraph 4 probably means ________. A．to make someone lose confidence B．to take someone’s attention away C．to encourage someone to work harder D．to make someone feel relaxed 4．What is the author’s overall attitude toward smart watches? A．doubtful. B．unsupported. C．balanced. D．indifferent. Ariel Procaccia has always been fascinated by big questions and hard problems. As a teenager, his favorite book was A Brief History of Time, which explores deep questions about the universe. Today, Procaccia is a computer scientist at Harvard University, where he designs computer algorithms that tackle some big problems that directly affect people’s lives. One of Procaccia’s favorite projects is Spliddit. Org. It’s a free website that helps people divide stuff in a way that mathematically guarantees fairness. For example, one of the apps on Spliddit is a rental division. Say a few roommates rent an apartment and have different preferences for rooms. The goal is to assign the rooms and divide the rent in a way that each roommate gets the best deal. By now, Spliddit has been used by thousands of people. Procaccia is especially excited about their work on algorithms for selecting community committee representatives tasked with discussing important issues and making recommendations for policymakers. They’re randomly selected from volunteers. But the random selection needs to be done in a way that leads to a community committee that looks like the overall population. For example, there’s usually a similar number of men and women. Meanwhile, every volunteer has to have an impartial chance of participating in the community committee. Procaccia and his partners developed an algorithm that balances these needs. As a professor, Procaccia works closely with amazing graduate students. Over a typical five-year Ph.D．, a special, lifelong bond is formed. Professors and their students often speak of each other as “academic children” and “academic parents.” And as someone who has three actual children, Procaccia thinks there’s a lot of truth to that, especially when his students succeed and achieve their goals. Procaccia believes that much of computer science is essentially about finding the best ways to solve problems. With that kind of toolbox, he says, almost any challenge becomes approachable. So even for those who think computers aren’t their thing, computer science just might be. 1．What is the goal of Procaccia’s work? A．To develop mathematical tools for fun. B．To explore questions about the universe. C．To serve people with algorithms. D．To write a popular-science book. 2．What does the underlined word “impartial” in paragraph 3 mean? A．Fair. B．Unexpected. C．Unmatched. D．Limited. 3．How does Procaccia view the relationship with his students according to paragraph 4? A．It’s similar to family bonds. B．It’s strict professional cooperation. C．It’s a typical teacher-student bond. D．It’s a five-year challenging journey. 4．What’s Procaccia’s attitude toward computer science? A．He thinks it’s too difficult for most people. B．He sees it as a problem-solving tool in life. C．He believes it’s mainly about programming. D．He emphasizes theory over real-life applications. 重难语篇提升练 Surgical students are less capable than their ancestors because they spend too much time with screens and not enough with physical materials. These claims from Roger Kneebone, professor of surgical education at Imperial College London, were widely reported last week. According to Kneebone, today’s students lack the dexterity that is important for sewing, cutting and stitching. He argues that this is because, instead of taking part in creative subjects that involve manual work during their school education, “a lot of things are reduced to swiping on a two-dimensional flat screen”. There hasn’t been much research into the effects of smartphones on surgical skills. However, one 2012 study found no statistically significant change in digital dexterity among frequent smartphone users, and it did find a significant improvement in reaction time. If anything, says Pete Etchells, a psychologist at Bath Spa University, UK, the use of digital technology of any kind — rather than smartphones specifically — is linked with a higher level of surgical skill. One 2007 study, for example, found that young surgeons who played a lot of video games made fewer errors in surgery and worked faster than those who didn’t. A randomized, controlled trial in 2012 found that surgery simulators(模拟) were less effective at training surgeons than just letting them play on games consoles. These were small studies that merely found modest effects, warns Etchells, but they don’t paint a picture of digital technology damaging the core skills of surgery. More broadly, says Andrew Przybylski of the Oxford Internet Institute, UK, Kneebone’s concerns and the resulting coverage are part of a wider reaction to the role of technology in our lives. Around a decade ago, we anticipated that digital experiences could lead to improvements in various kinds of real-world competence, such as brain-training games enhancing cognitive performance or video games boosting surgical dexterity. “As those hopes haven’t materialized, we rightly feel disappointed,” says Przybylski. There is also a society-wide fear about new technologies, which is often unfounded. Przybylski’s own work has found that, contrary to widespread concern around technology and young people, screen time seems to have a small, positive effect on teenagers in all but the most extreme of cases. “Collective anxiety about the role of smartphones, and social media companies, fuel this sort of fear of technology,” he says. Ultimately, Kneebone may turn out to be right that the decline in crafts and handiwork at school is reducing the quality of the surgical student intake. But there seems little evidence of it yet. In fact, it is probably a positive thing that our youngest surgeons are digitally literate. In the very near future, a surgeon’s ability to interact with technology — be that surgical robots or augmented reality — will become increasingly important. 1．What does the underlined word dexterity mean? A．Power of concentration. B．Experience of performing surgery. C．Capacity to use words or mind. D．Skills related to hand work. 2．What can we learn from the studies mentioned in Paragraph 3 and 4? A．People are confident that video games will boost cognitive performance. B．Surgeons won’t be less skillful when exposed to digital technology. C．Digital applications except smartphones strengthen surgical skills. D．Most surgeons are modest about their improved working efficiency. 3．The perceived decline of medical students’ surgical competence is due to___________. A．people’s fear about technology that is backed up by scientific evidence B．people’s failure to see the positive effects of digital technology emerge C．the increased time teenagers spent using smartphones and social media D．the decreased access to handiwork and crafts required in medical school 4．Which of the following may serve as the best title for this passage? A．Surgical Skills, Need Enhancing? B．Digital Devices, Enhance Reaction Time? C．Surgeons, Be Trained as Digital Natives? D．Screen Time, Bad for Young Surgeons? Recently, a research team from Shanghai-based Fudan University has developed the world’s first full-featured, 2D flash chip enabled by system integration, marking a milestone in the engineering of 2D electronic devices. This breakthrough integrates the ultrafast 2D flash memory device with a mature silicon (硅)-based complementary metal oxide (氧化物) semiconductor, or CMOS technology, providing a model to accelerate the transition of next-generation disruptive (颠覆性的) devices from research to application. However, the process of industrializing disruptive innovations for system-level applications often takes a prolonged time. The team from Fudan University’s State Key Laboratory of Integrated Chips and Systems strategically integrated their 2D flash technology into the industry’s CMOS platform, providing a way to turn the concept of the 2D electronics device into a complex system application. A core challenge for the team was how to integrate the 2D materials with CMOS technology without compromising performance. The surface of a CMOS circuit is quite rough due to the underlying components, while the 2D semiconductor materials are only 1 to 3 atoms thick. Such materials can easily break if they are directly placed on CMOS circuits. “This is like looking at Shanghai from space. It seems flat, but within the city, there are buildings of varying heights — over 400 meters, 100 meters, or just a few dozen meters. If you lay a thin film over the city, the film itself would not be flat,” said Zhou, adding that this explains why researchers worldwide in 2D semiconductors can only process materials on extremely flat native substrates so far. In their research, the team decided to start with 2D materials that innerly possess a certain degree of flexibility. By employing a modular integration approach, the scientists fabricated the 2D memory circuits on the mature CMOS circuits and used high-density (密度) interconnection technology for communication between different modules. This innovative core process allows for the tight coupling of 2D materials with CMOS substrates (基底) at the atomic scale. “This research represents a ‘source technology’ in China’s integrated circuit field, allowing the country to take the lead in next generation core storage technologies,” said Zhou. 1．What’s the significance of the newly-developed 2D flash chip? A．It will support advancing information technology to a new era. B．It will be a key process model between vision and application. C．It may boost application of the next-generation disruptive devices. D．It aims to turn the concept of 2D electronics device more complex. 2．What’s the purpose of the example in Paragraph 5? A．To prove that Shanghai is not flat within the city. B．To prove that micro views are different from the macro (宏观的) ones. C．To illustrate the importance of flat substrates in material processing. D．To reveal the delicateness of the 2D semiconductor materials. 3．What can be learnt from Paragraph 6? A．The problem was fixed through changing the flexibility of the material. B．Creative techniques were used to attach the material to the atomic scale. C．Combining 2D circuits with CMOS leads to efficient connections between modules. D．The modular integration approach is the only nuclear part mentioned in the process. 4．What’s the best title of the passage? A．China Takes the Lead in Core Storage Technologies. B．Disruptive Devices Are Applied for the First Time Globally. C．Chinese Scientists Achieved in Circuit Advancing. D．Breakthrough in 2D Flash Chip Achieved. 学科网（北京）股份有限公司 $