2022届中考英语阅读话题：5G技术 （共5篇含答案解析）

2022届中考英语阅读话题分类练：5G技术
一、阅读单选
If you look at the top of your phone, you’ll usually see a little symbol that says 3G or 4G. The “G” stands for the “generation of your mobile network. But these symbols will become things of the past after 5G fully arrives.
On March 30th, 2019, Shanghai vice-mayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone, CGTN reported. Shanghai has also become the first city in China to start testing 5G networks.
Now, 4G takes about 100 to 200 milliseconds (毫秒) to send and receive data (数据). But 5G will get it down to 1 millisecond or less. This big change will not only make our mobile Internet faster. It can be used in many other ways as well.
For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problem — lag. When the car “sees” an obstacle (障碍物), it sends this information to a data center and receives instructions. However, It takes time to send and receive this information. With this kind of lag, the cars might crash (撞击) because they don’t receive instructions in time. With 5G, this lag will be greatly lowered, according to CNN.
5G could also be used to power the Internet of Things (IoT). This refers to a large online network that connects all things and people. Fast Internet speeds will be the key to developing this technology. For example, with IoT under 5G, your refrigerator could automatically (自动地) place an order online for eggs when it finds that there are no eggs left inside.
All in all, 5G will shape every type of technology that it touches. And you won’t have to wait too long for that to happen.
1．From Paragraph 2, we can know that ________.
A．5G is widely used in Shanghai B．it took lots of efforts to test 5G
C．China is working on its 5G networks D．5G would make it possible to take videos
2．The underlined word “lag” probably means “________” in Chinese.
A．迷路 B．延迟 C．暂停 D．耗电
3．The refrigerator is mentioned to ________.
A．describe the importance of IoT B．encourage people to try the new product
C．introduce how to use the Internet of Things D．show 5G would make IoT more powerful
4．Which of the following would be the best title of the passage
A．Can 5G Go Far B．5G Is on the Way
C．Is 5G Changing Our Life D．China Is Leading the World in 5G
If you look at the top of your phone, you will usually see a little symbol that says 3G or 4G. The “G” stands for the “generation（代）” of your mobile network（网络）. The 5G mobile network is 100 times faster compared with the 4G mobile network.
In recent years, China pays great attention to the use of 5G. On March 30th, 2019, Shanghai vice-mayor（副市长）Wu Qing made the first 5G video call on a Huawei Mate 10 smartphone, CGTN reported. Shanghai is also the first city in China to start testing the 5G network.
5G will not just bring faster mobile Internet. People can use it for many other things, too. For example, 5G will help to make self-driving cars safer. Today’s self-driving test cars have one problem-the lag（滞后）. When the car “sees” an obstacle, it sends this information to a data（数据）center and gets instructions（指示）. However, it takes time to send and get this information. With this kind of lag, the car accident might happen because the car doesn’t get instructions in time. With 5G, this lag will be greatly reduced（减少）and make the cars safer.
5G could also be used to make the Internet of Things(IOT) stronger. This refers to a large online network that connects（ 联系）all things and people. For example, with the IOT, your fridge could order eggs online when it finds there are no eggs left inside. How amazing!
5．In which city was 5G tested for the first time in China
A．Beijing. B．Shanghai. C．Shenzhen.
6．We can learn from the story that ________.
A．China will pay little attention to the use of 5G
B．there will be no difference between phones
C．the 5G mobile network is much faster than the 4G mobile network
7．The writer uses self-driving as an example to ________.
A．tell us how 5G’s fast speed（速度）can be helpful
B．show us how fast self-driving cars are
C．tell us the possible dangers of self-driving cars
8．The underlined word “obstacle” in Para. 3 means ________ in Chinese.
A．障碍物 B．警告 C．目标
9．According to the story, the IOT is ________.
A．a robot that can do housework
B．a large online store where you can buy anything you want
C．a large online network that connects everything and everyone
There is much heated discussion today about 5G. Your Internet experience is not pleasant when the net speed is too slow — it takes so long to open a web page and the talk show you’re watching stops every few minutes. But soon it could be a thing of the past. On June 3, 2020, the Chinese government announced (宣布) that 5G services would be provided around the country.
5G is the 5th generation network. It is a new network after 1G, 2G, 3G and 4G and it can connect everyone and everything together. 5G speed can be very fast. In the near future, 5G network will cover many cities in China.
5G will make self-driving cars possible. For safety, self-driving cars need super-fast data transmission (传输) to communicate with their nearby environment. 5G is just what makes self-driving cars achieve this. Even airplanes will become “smart” in the near future. Passengers will be able to use 5G networks in the air to connect to the Internet or order food and drinks.
5G will be a big help for students who take online classes. In the world, many people live in poor areas where there are no schools. But with 5G, this will change. Students all over the world will be able to see places like the Great Wall without leaving their rooms.
In addition, 5G will be used in hospitals. It will be easier for doctors to care for patients who live far away by 5G.
However, 5G has its own weaknesses. According to China National Radio, though 5G will make our lives easier, it will not be perfect. For one thing, 5G will not “travel” far. On 4G networks, you can be 10 kilometers away from the nearest transmission centre and connect the Internet easily. But 5G will only cover about 300 meters. And in order to use 5G, we will have to buy new products specifically designed for 5G that are expensive at present.
10．The underlined word “it” in Paragraph 1 refers to ______.
A．the talk show B．the slow net speed C．the web page D．the heated discussion
11．According to the passage, 5G will make ______ possible in people’s life.
①online classes ②self-driving cars ③“smart” airplanes ④hospitals without doctors
A．①②③ B．①②④ C．①③④ D．②③④
12．Paragraph 6 is mainly about the ______ of 5G.
A．products B．networks C．centers D．disadvantages
13．What’s the purpose of the passage
A．To show 5G is perfect. B．To give an introduction of 5G.
C．To call on people to use 5G. D．To explain how 5G becomes popular.
If you look at the top of your phone, you’ll usually see a small symbol that shows 3G or 4G. The “G” means the “generation (代)” of your mobile network. But they will become history after 5G network fully arrives.
In recent years, China makes great achievement in 5G network. Now it’s making efforts to popularize the business use of 5G. Shanghai is the first city in China to start testing 5G networks. On March 30, 2019, Wu Qing, one of the leaders of Shanghai, made the first 5G video call with Huawei Mate Smartphone.
5G allows people download and upload data faster than ever before. It is 100 times faster than 4G mobile network. But 5G doesn’t just bring faster mobile Internet. People can use it for many other things as well. For example, 5G can make self driving cars safer.
Today’s self driving cars have one problem-time lag (滞后). When a self driving car “sees” an obstacle (障碍物), it sends this information to data center and receives instructions. However, it takes time to do that. That’s the time lag. With this kind of lag, the car might have an accident because it doesn’t receive instructions in time. But with 5G, the self driving car can receive instructions more quickly.
5G can also be used to power the Internet of Things (IoT). This refers to a large online network that connects all things and people. Fast Internet speeds will be the key to developing this technology. For example, with IoT, your smart fridge could order eggs online when it notices that there are no eggs left inside.
14．What is true about 5G
A．5G can only make mobile Internet faster. B．The first city in China to do 5G test is Shanghai.
C．5G network has been fully used in China. D．5G network is 10 times faster than 3G network.
15．Why does the writer use self driving cars as an example
A．To explain how self driving cars work.
B．To show us how important self driving cars are.
C．To tell about the possible dangers of self driving cars.
D．To explain how 5G’s fast speed can be helpful.
16．What can we learn from the passage
A．China supports the development of 5G network. B．There are no differences between 3G and 4G.
C．There will be no car accidents. D．The 5G network can control fridges, TVs and other appliances.
17．Where can you probably read this article
A．In a science magazine. B．In a historical novel.
C．In a fashion magazine. D．In a story book.
Science week is coming. It is from May 20 to May 24. Welcome to it.
Black Holes On April 10, people around the world got their first look at a real black hole. Want to know more Come and enjoy a film about black holes at 3 p.m. on Thursday in the school hall.
5G is coming! Come and experience what it is like! Time: 2:30 p.m.—4:30 p.m. Day: Monday Place: Science Center. Teachers: Miss Yang, Mr Zhu
Why can’t we grow to be 3 meters Speaker: Doctor Hu Time: 9:00 a.m.—11:00 a.m. Day: Friday Place: Biology Lab Two
3D-printed products must bring you different feelings! Time: 8:20 a.m.—10:20 a.m. Day: Tuesday Place: Computer Room Four Teacher: Mr Wang
18．You can enjoy a film ________ on Thursday afternoon.A．in the school hall B．in Computer Room Four
C．in Biology Lab Two D．in Science Center.
19．From2:30 p.m.—4:30 p.m. on Monday, you can ________.
A．enjoy 3D-printed products B．watch a film
C．listen to a talk D．experience what 5G is like
20．Maybe it is from ________.
A．a notice B．a survey C．a map D．a diary
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参考答案：
1．C
2．B
3．D
4．B
【解析】
【分析】
本文主要讲述了5G时代即将到来，这不仅仅带来更快的移动互联网，人们还可以很好地将其用于许多其他事情。
1．
推理判断题。根据“On March 30th, 2019, Shanghai vice-mayor Wu Qing made the first 5G video call on a Huawei Mate X smartphone, CGTN reported. Shanghai has also become the first city in China to start testing 5G networks.”可知，本段主要介绍了上海已经开始测试5G网络，即中国已经开始致力于自己的5G网络．故选C。
2．
词义猜测题。根据“When the car ‘sees’ an obstacle, it sends this information to a data center and receives instructions.”及“With this kind of lag, the cars might crash because they don’t receive instructions in time.”可知，自动驾驶汽车会向数据中心传送信息，同时接受指令，如果不能及时接受数据中心发出的指令，车辆可能会发生碰撞事故，所以此处划线部分单词lag意为“延迟”。故选B。
3．
推理判断题，根据“5G could also be used to power the Internet of Things (IOT).”可知提到冰箱是为了显示5G将使物联网更加强大。故选D。
4．
标题归纳题。本文主要讲述了5G时代即将到来，这不仅仅带来更快的移动互联网，人们还可以很好地将其用于许多其他事情。结合“All in all, 5G will shape every type of technology that it touches. And you won’t have to wait too long for that to happen.”可知5G将会影响涉及科技的每个领域，你不会等太久的，它会发生的，用“5G Is on the Way”做标题最合适。故选B。
5．B
6．C
7．A
8．A
9．C
【解析】
【分析】
这是一篇说明文，文章讲述5G网络的意义和优势。
5．
细节理解题。根据“Shanghai is also the first city in China to start testing the 5G network.”可知，上海也是中国第一个开始测试5G网络的城市。故选B。
6．
推理判断题。根据“The 5G mobile network is 100 times faster compared with the 4G mobile network.”可知，5G移动网络比4G移动网络快100倍。 故选C。
7．
细节理解题。根据“For example, 5G will help to make self-driving cars safer.”可知，5G将有助于使自动驾驶汽车更安全。故选A。
8．
词句猜测题。根据“When the car ‘sees’ an obstacle, it sends this information to a data center and gets instructions.”可知，当汽车“看到”障碍物时，它会把这个信息发送到数据中心，并得到指示，obstacle的意思是“障碍物”，故选A。
9．
细节理解题。根据“5G could also be used to make the Internet of Things (IOT) stronger. This refers to a large online network that connectsall things and people.”可知，IOT指的是一个连接所有人和事的大型在线网络。故选C。
10．B
11．A
12．D
13．B
【解析】
【分析】
本文是一篇说明文，介绍了5G这一新技术，其优点及其缺点。
10．
词句猜测题。根据原文“Your Internet experience is not pleasant when the net speed is too slow … But soon it could be a thing of the past”可知，此处it指代的是上文提到的网速慢的现象。故选B。
11．
细节理解题。根据原文“5G will make self-driving cars possible … Even airplanes will become “smart” in the near future … 5G will be a big help for students who take online classes … 5G will be used in hospitals. It will be easier for doctors to care for patients”可知，5G不会让医院没有医生，故④可排除，故①②③正确，故选A。
12．
主旨大意题。通读第六段可知，本段主要说的是5G的缺点。故选D。
13．
主旨大意题。通读全文可知，本文是一篇说明文，介绍了5G这一新技术，其优点及其缺点。故选B。
14．B
15．D
16．A
17．A
【解析】
【分析】
本文是一篇说明文。文章主要介绍了什么是5G，这个新的技术会给我们的生活带来哪些变化。
14．
细节理解题。根据文章第二段中的“Shanghai is the first city in China to start testing 5G networks”可知，上海成为中国第一个开始测试5G网络的城市，故选B。
15．
推理判断题。根据文章第三段中的“But 5G doesn’t just bring faster mobile Internet. People can use it for many other things as well. For example, 5G can make self driving cars safer”可知，作者用自动驾驶汽车作为例子，告诉我们5G网络的使用不仅是给我们带来更快的移动网络，它的快速还有很多其他的用途，故选D。
16．
细节理解题。根据文章第二段中的“Now it’s making efforts to popularize the business use of 5G”可知，现在中国正在努力推广5G的商业应用，所以A项说法正确，故选A。
17．
推理判断题。通读全文可知，文章主要介绍了5G网络会给我们的生活带来哪些变化，所以最有可能在科学杂志上读到这篇文章，故选A。
18．A
19．D
20．A
【解析】
【分析】
本文是一篇应用文。主要介绍了科学周将要展示的科学内容。
18．
细节理解题。根据“Come and enjoy a film about black holes at 3 p.m. on Thursday in the school hall.”可知，星期四下午3点到学校礼堂来欣赏一场关于黑洞的电影。故选A。
19．
细节理解题。根据“Time: 2:30 p.m.—4:30 p.m.”；“Day: Monday”以及“5G is coming! Come and experience what it is like!”可知，5G来了！来体验一下吧！故选D。
20．
推理判断题。根据“Science week is coming. It is from May 20 to May 24.Welcome to it.”可知，科学周就要到了，因此这有可能是关于科学周内容的一个通知。故选A。
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