备战 2022 中考英语完形填空话题分类训练 (中考真题+各地模拟题) 专题 42 5G 技术 Passage 1 （2021·陕西）第二节：阅读下面一篇短文，理解大意，然后从各小题的四个选项中选 出一个最佳答案，使短文连贯完整。 Technology is developing fast and it has become an important part of our life. Then what will the world be 1 3-D food will be in the future? 2 delicious and nutritious (有营养的). We can use 3-D printers (打 印机) to print some basic materials. And we can go further. It is quite convenient. Scientists believe that we just need to turn on a printer in the kitchen and then we can enjoy our favorite food 3 we like. 5G network will 4 many more people to get information. Big companies like China Mobile and China Unicom will start to offer 5G. speed 10 to 20 times faster than 4G. 5 that 5G promises download (下载) 6 , we can download a film within just 1 second. But with 4G network, it takes a few minutes. There 7 much bandwidth (带宽) and we can get unlimited information. Underwater cities will provide more space. The earth is becoming 8 crowded. We may turn to underwater homes, which will be built as low as 15 kilometers below the sea. And the different temperatures at the different depths of the sea can be used to provide power for the homes. Space tour will be quite easy. For us common people on the earth, the dream of traveling around space will 9 . In the coming years, spacecraft will be 10 buses, trains and planes. We can leave our home and enter space to take an adventure（冒险）. And even we will get used to living there. 1．A．like B．for C．on D．from 2．A．all B．both C．either D．each 3．A．whatever B．however C．whenever D．wherever 4．A．give B．get C．take D．allow 5．A．It said B．It is said C．It is spoken D．It speaks 6．A．First of all B．All in all C．For example D．By mistakes 7．A．will have B．will be C．have D．has 8．A．much B．more and more C．less and less D．fewer and B．come out C．come up D．come down C．as long as D．as popular as fewer 9．A．come true 10．A．so popular as B．more popular as Passage 2 （2020·全国·九年级二模） China is running ahead in 5G. Last month, the Shanghai Hongqiao Railway Station 11 the world’s first “5G railway station”. Now it 12 only 20 seconds to download a long movie there. We are moving closer and closer to the 5G world. However, the new technology is still 13 to most of us. What is 5G, after all? The first feature of 5G is obvious — it is will not only be faster than the current 4G networks. It will 15 14 . 5G be much faster than the broadband(宽带) connection we have at home! The first 5G modem(调制解调器) of the IT company Qualcomm supports the up to 5 gigabytes(千兆字节) per second. Most of us have never experienced 16 of 17 close to that speed. And we are only talking about the first generation of 5G modems. Future modems are likely to be even faster. 18 5G is not all about speed. Have you ever been to a large event where your data(数 据) connection slowed down? That is 19 4G networks can only support a certain number of devices(装置、设备) per square kilometer. 5G networks will be able to do much 20 . They can support up to a million devices per square kilometer. Now, you begin to 21 why 5G is a huge upgrade over 4G. The technology is not just for the smart phone. It has a strong 22 on every connected device. 23 5G self-driving cars will be able to communicate with the world around them as quickly as possible. They will be 24 able to be independent. Wearables(可穿戴设备), PCs and smart home appliances will be 25 as well. Are you looking forward to it? 11．A．described B．became C．connected D．caused 12．A．takes B．spends C．costs D．pays 13．A．successful B．harmful C．strange D．good 14．A．fast B．slow C．common D．unusual 15．A．too B．either C．also D．neither 16．A．task B．speed C．weight D．height 17．A．anything B．something C．nobody D．anybody 18．A．So B．But C．And D．Or 19．A．while B．since C．because D．whether 20．A．better B．worse C．well D．bad 21．A．mention B．understand C．doubt D．prove 22．A．chance B．level C．influence D．mind 23．A．With B．From C．For D．To 24．A．completely B．simply C．mostly D．nearly 25．A．discovered B．happened C．improved D．begun Passage 3 （2021·辽宁·模拟预测）Homes get smarter. Most of us spend all day at school or work. After a long and busy day, all we want to do is return to a 26 home. Smart technology can turn any home Smart homes have been for technology 27 a nicer place to live. 28 . Scottish company Pico Electronics invented a type of 29 X10 in 1975. With X10,householddevices (家用装置),such as lights and