2020-2021学年度高一下学期英语单元双基精品试卷 选修七 Unit1 Living well_Unit2 Robots(B）（含答案）

-1106805339725此卷只装订不密封 班级 姓名 准考证号 考场号 座位号 此卷只装订不密封 班级 姓名 准考证号 考场号 座位号 2020-2021学年度高一下学期英语单元双基精品试卷 选修七 Unit1 Living well_Unit2 Robots（B） 阅读理解 A There have been a lot of reports recently surrounding 5G, the next generation of wireless technology for the world. But what is this technology and how might it change our lives? 5G stands for fifth generation, meaning the next step in the development of technology to replace the current 4G system. 4G was the replacement for 3G, which came after 2G, and so on. Earlier “G” systems were designed to improve mobile communication operations. Each new technology brought major improvements in speed and greatly increased network capacity(容量). The new 5G system promises more of the same. However, technology experts say there is a major way that 5G is different from the earlier systems. It will move well beyond mobile network technology to affect many more devices and industries than other “G” versions. Wireless industry groups say 5G will help fuel future “smart cities” by connecting sensor(传感器) networks. 5G is also expected to connect self-driving cars and support new technologies involving virtual reality. Higher 5G speeds could also permit doctors to commonly perform remote medical operations. Factories and businesses could use 5G technology to increase automation and improve the collection of information. Every coin has two sides. Much of the data could contain private details about individuals, businesses or government organizations. The increased data flow would give internet attackers a lot more possibilities to steal and misuse data. In addition, the wider use of a 5G wireless network means any breakdown of the system would have more widespread and severe results. Such difficulties could affect public safety as well as world economic activity. 1. What major effects will 5G have on our lives? A. It will influence more devices and industries. B. It will improve internet speed and network capacity. C. It will be under the control of mobile network technology. D. It will contribute to the mobile communication operations. 2. What can we learn about “smart cities” from the passage? A. Smart city is only based on wireless industry. B. Self-driving cars have been in wide use in smart cities. C. Many smart cities have been built all over the world. D. The development of 5G promotes the construction of smart cities. 3. What is the last paragraph mainly about? A. The function of 5G technology. B. The future of 5G technology. C. The possible risks of 5G technology. D. The advantages of 5G technology. 4. What’s the author’s attitude towards 5G? A. Indifferent. B. Objective. C. Supportive. D. Negative. B Today just as technology changed the face of industry, farms have undergone an “agricultural revolution”. On the farm of today, machines provide almost all the power. One of the most important benefits will be the farm computer. The c ... ...