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:49 题号:10919856

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 6th. This means that China’s telecom companies were soon 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 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 big change will not only make our mobile Internet faster, but also deeply change our lives. Read on to find out how.

5G + entertainment

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

5G + transportation

5G 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 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, if the sensor feels the air becoming dry, a smart sprinkler(洒水器) could water your plants by itself.

1. What happened on the sixth day of June according to the passage?
A.5G came into use.
B.China issued commercial licenses.
C.Mobile phone users could talk to each other.
D.4G received information more slowly than 3G.
2. What does the underlined word “delay” in Paragraph 4 probably mean in Chinese?
A.延时B.删除C.断开D.终止
3. 5G will change people’s lives in many ways EXCEPT _________.
A.entertainmentB.transportationC.smart homesD.health
4. Which of the following is NOT true according to the passage?
A.5G can make human drivers react faster than cars.
B.We can download a movie faster with 5G.
C.The plants can be watered by a smart sprinkler itself with 5G.
D.5G is faster and more powerful than 4G.
5. What’s the main idea of the passage?
A.Mobile phone users can use 5G networks.
B.Each mobile network generation has their own advantages.
C.5G will change our lives in many ways.
D.5G will bring us safer self-driving cars.

相似题推荐

阅读理解-单选(约260词) | 适中 (0.65)
文章大意:本文介绍了使用电脑的好处以及在使用中出现的问题,指出电脑真的会给人们带来麻烦还是会给人们带来幸福将由人们自己决定。

【推荐1】Computers are becoming more and more important in our life. With the development of science and technology (科技) they have grown smaller and smaller. There are many kinds of computers, such as personal computers and supercomputers

Computers are very useful in life. For example, we can use them to send messages to friends by email. What’s more, we can also use them to share information with others through the World Wide Web, so others can know it. Computers make us relaxed. We can listen to music or play games on them. Computers can help people to save much time to do much work. They can also help people to work out many problems easily. Now, our country asks students to learn to use computers because computers are used everywhere.

Today more and more families have computers. Parents buy computers for their children. They hope computers can help them improve their studies in school. However, many children use computers to play games, watch videos or listen to music. In this way, computers cannot help children to study but make them fall behind. So computers are locked (被锁住) in boxes by parents.

In some other countries, some scientists dislike computers. They say computers let millions of people lose their jobs or bring them a lot of trouble. Will computers really bring trouble to people or can they bring people happiness? It will be decided by today’s students themselves!

1. What has become of computers according to the text?
A.Bigger and bigger.B.Smaller and smaller.
C.Heavier and heavier.D.More and more special.
2. What does the second paragraph mainly talk about?
A.How to use computers to talk with others.B.The uses of computers in our life.
C.How to spend free time on computers.D.The funny results of using computers.
3. Why do parents lock computers in boxes?
A.Computers are almost useless to them at home.
B.They think computers are bad for their children’s eyes.
C.They’re afraid their children may use computers incorrectly (不正确地).
D.They don’t want to spend much time on computers at home.
4. Why do some scientists NOT like computers?
A.They think computers are dangerous to people.
B.They think computers will make people out of work.
C.They think computers cannot do things well sometimes.
D.They think computers make people become lazy.
2023-12-24更新 | 54次组卷
阅读理解-单选(约290词) | 适中 (0.65)

【推荐2】In the US, a new video app called TikTok has become very popular. It's a free social media (社交媒体) app that is used to make short videos with a mobile phone.

My friends and I have been using Instagram and Snapchat for a while, but my parents have had mixed feelings about allowing me to use social media (社交媒体). However, they finally gave in when I proved that I was able to manage my time wisely and get my homework done. I also promised that I would not spend a lot of time on it. I really didn't want to miss out on this fun and trendy platform (平台). I have made three TikTok videos so far and one of them got over 2,000 views within a few days.

Every mid-October, my school has homecoming, which is an annual tradition of welcoming back old schoolmates and celebrating school spirit. The Student Council also organises a week of events to celebrate homecoming.

Making TikTok videos became one of the events this year. Many of us made TikTok videos. Our Student Council chose the top five funniest videos. The winning videos were played on a big screen during a school meeting and our school's headmaster awarded (授予) the first place winner. I made a TikTok video with a couple of friends. Although it didn't win, I enjoyed the process since my video showed my creativity.

On a recent trip to Chicago, a popular food truck in front of a well-known university was providing food and it was given by TikTok! As I enjoyed the free food, I couldn't stop wondering what the next popular media might be.

1. Which of the following correctly describes TikTok?
A.It is a video app for mobile phones.
B.It is a new-born mobile phone.
C.It is more popular than Instagram.
D.It can be used to do homework.
2. The writer can use social media only if ________.
A.he helps his parents do housework
B.it doesn't influence his studies
C.his TikTok videos become popular online
D.he joins a video club in his school
3. What do we know from Paragraphs 3 and 4?
A.Homecoming lasted for a month in the author's school.
B.Students made TikTok videos to celebrate homecoming.
C.Making short videos is a tradition in the author's school.
D.The author's video won first prize in a contest.
4. Which of the following is mainly talked about in the passage?
A.Why TikTok has become popular.
B.How to make the best TikTok videos.
C.The changing trends in social media.
D.The author's experience of using TikTok.
2021-03-05更新 | 71次组卷
阅读理解-单选(约180词) | 适中 (0.65)
真题

【推荐3】Nowadays there seems to be an app for everything. And mobile apps have been a part of our life. The following apps are part of the most popular apps.


Ctrip:
It can be the best helper when you feel it hard to buy the train or airline tickets. You can buy tickets anywhere at anytime.

Ximalaya Reading:
It has lots of books, including poems, short stories, novels and even fairy tales for children. We can download book recordings and listen to them. It has more than 1 million valuable resources( 资源).

Baby Bus:
It is a very good friend for children under three years old. Kids can learn to speak and draw pictures with the help of this app.

World Heroes:
It may help you learn more English words while you’re playing games, so if you have problems remembering the new words when you learn English, use it!

1. Ctrip is a useful APP for _______.
A.buying ticketsB.learning EnglishC.playing games
2. Ximalaya Reading has ________ valuable resources.
A.one millionB.over one millionC.less than one million
3. Kids can ________ with the help of Baby Bus.
A.learn to speakB.draw picturesC.Both A and B
4. If you want to learn more English words while playing games, you’d better choose ________.
A.CtripB.Ximalaya ReadingC.World Heroes
5. What’s the best title of this material?
A.Introduction of mobile App for reading.
B.Introduction of some popular mobile apps.
C.Introduction of mobile apps for learning English.
2021-10-21更新 | 47次组卷
共计 平均难度:一般