组卷网 > 初中英语综合库 > 主题 > 人与社会 > 科普知识与现代技术 > 信息技术
题型:阅读理解-单选 难度:0.65 引用次数:617 题号:10579658

Do you know 5G? It is the fifth generation(代)of mobile network technology. These new networks are coming.

China just issued commercial licenses(发放商用牌照)for 5G on June 6, 2019. This means that China's telecom companies will be able to offer 5G networks for mobile phone users.

Each mobile network generation is faster and more powerful than the one before it. 1G let us talk to each other. 2G let us send messages. 3G gave us data(数据)and the Internet. And 4G made all of these things faster. What's special about 5G?

5G has a very short delay between sending and receiving information. Now, 4G takes about 100 to 200 milliseconds(毫秒)to send and receive data. But 5G will get it down to 1 millisecond or less-this is almost real-time.

'This big change will not only make our mobile Internet faster,but also deeply change our lives. Read on to find out how.

5G + entertainment(娱乐)


5G networks are about 100 times faster than 4G. This means you can download a movie in seconds using 5G.

Also, virtual reality(VR)games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

5G + transport

5C will also bring us safer self-driving cars. These cars can send signals(信号)to each other. They also talk to traffic lights and road sensors(传感器). 5G will allow cars to react(反应)even faster than human drivers.

5G + smart homes

5G also makes the Internet of things possible. Internet of things is a large network that connects everything to the Internet. Smart homes are part of it.

For example, your toaster can automatically(自动地)start making breakfast after your alarm rings. And if its sensor feels the air becoming dry, a smart sprinkler(洒水器)could water your plants by itself.

1. What's the writer's purpose in writing the third paragraph?
A.To explain 5G is the best of all.
B.To share his knowledge about 5G.
C.To encourage people to use the new network technology.
D.To show the development of mobile network technology.
2. What does the underlined word “delay” in paragraph 4 mean in Chinese?
A.卡顿B.延时C.暂停D.掉线
3. Which of the following ways is not mentioned that 5G will change people's lives?
A.Health careB.Entertainment.C.Transport.D.Smart homes.
4. What will people do possibly with 5G according to the passage?
A.Download a movie in minutes.
B.Put everything onto the Internet.
C.Make self-driving cars safer.
D.Make food more easily and faster.
5. What's the main idea of the passage?
A.5G will change our lives in many ways.
B.Mobile networks are changing for better.
C.5G will make the Internet of things possible.
D.5G networks for mobile phone users are coming.

相似题推荐

阅读理解-单选(约320词) | 适中 (0.65)
名校

【推荐1】Scientists are not alone in the fight against the novel coronavirus (新型冠状病毒), as new technologies and innovative (创新的) products are giving them a hand. Here are some examples.

Big date(大数据)

Our smartphones send data to telecom companies (电信公司) around the clock, telling these companies where we have been and where we are going. Chinese telecom companies provide governments with this data. They use the data to track (追踪) traffic flows among different provinces and cities. By tracking how many people are coming and going out of Wuhan, the center of the outbreak, telecom companies can send warnings to areas that are being visited by large numbers of people from Wuhan.

Drones (无人机)

Drones have played a major role in disinfection (消毒) and preventing cross-infection (交叉感染) in crowded places like hospitals, railway stations and airports.

Police officers use drones to give warnings. For example, if people gather in large groups or do not wear masks, drones with cameras can record and send images of these people in real time to control rooms. The drones will then warn these people.

Robots

Robots are good helpers on the frontlines. They are used at hospitals to offer medical advice, deliver drugs or meals, act like guides, perform disinfection, measure patients' body temperatures and do other repetitive work. In this way, robots can not only help greatly reduce the burden for medical workers, but also reduce the risk of cross-infection. They have also been used in public places like train stations and airports to check temperatures.

1. The technologies and innovative products are mentioned in the passage EXCEPT ________.
A.big dataB.robotsC.dronesD.telephone
2. According to the second paragraph, what is the right order of the followings?
a. Smartphones send data to telecom companies.          
b. Telecom companies can send warnings.
c. Telecom companies provide data for governments.       
d. Governments track traffic flows with data.
A.c-a-d-bB.a-c-d-bC.d-c-a-bD.d-a-c-b
3. Drones have played a major role in crowded places like ________.
A.offices, railway stations and airportsB.hospitals, waiting rooms and airports
C.hospitals, railway stations and airportsD.hospitals, railway stations and dining halls
4. The passage is mainly about ________.
A.a new kind of smartphonesB.the technologies and innovative products
C.disinfection and preventing cross-infectionD.scientists and medical workers
2021-01-28更新 | 182次组卷
阅读理解-单选(约180词) | 适中 (0.65)
文章大意:本文是一篇说明文。文章介绍了4个可以让人生活变得更好、更轻松的应用程序。

【推荐2】

Sleep Cycle helps your body get an ideal rest by monitoring(监测)your sleeping patterns and waking you up when it senses that it’s the best time. The app is free for the basic functions(功能)but you should pay for some other services.

Coach. me is a kind of app that allows users to connect and encourage each other to keep new habits. This app enables anyone to have many responsible partners while forming new habits. The app is found both on Android and Apple Store for free.

Khan Academy is an app for all parents wishing to give their children good education from a young age. The app offers different topics ranging from science to maths. The app is free to download on your iPhone, iPad or Android smartphone.

Daily Yoga is an app to help you fit in a few minutes for simple yoga exercises. You may spend ten minutes or so and do a few yoga poses as instructed(指令)by the app. It is free on the Apple Store.

1. ________ is an app for solving sleep problems.
A.Sleep CycleB.Coach. meC.Khan AcademyD.Daily Yoga
2. People can ________ by using Daily Yoga.
A.get an ideal restB.do a few yoga poses
C.buy things onlineD.form new habits
3. The passage is mainly about ________.
A.the ways of getting some useful appsB.the life some useful apps bring people
C.the introduction of some useful appsD.the reasons why people use apps
2023-05-20更新 | 18次组卷
阅读理解-单选(约150词) | 适中 (0.65)
文章大意:本文介绍了赏云协会。

【推荐3】

The Cloud Collector’s Handbook
       This book is handy to carry around. It is written by Gavin Pretor Pinney, the founder (创始人) of the Cloud Appreciation Society (协会) in the UK. You can write down different things in it, such as when and where you spot (发现) a kind of cloud.
The Cloud Appreciation Society Website
     The society started in 2005 and now it has cloud spotters from 120 countries and regions. They often post their cloud photos on the website. You can talk with other spotters about the photos there.
Cloud Spotter
       The app’s library can help you learn about the 40 different kinds of clouds. When you post cloud photos, you can get “stars”. You can also compete with other cloud lovers worldwide.

1. When did the Cloud Appreciation Society start?
A.In 2006.B.19 years ago.C.In 2015.
2. “Cloud Spotter” is ________.
A.a bookB.a websiteC.an app
3. Which of the following is TRUE?
A.You can compete with other cloud lovers in the book.
B.You can talk with other spotters about the photos on the website.
C.The app’s library can help you learn about fourteen different kinds of clouds.
2024-05-10更新 | 12次组卷
共计 平均难度:一般