Doyou know 5G? It is the fifth generation(代) of mobile network technology. These-组卷网

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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.

【小题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.

【小题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

【小题3】5G will change people’s lives in many ways EXCEPT _________.

A．entertainment

B．transportation

C．smart homes

D．health

【小题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.

【小题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.

2020·山东淄博·二模

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The Internet is shaping our lives. We already have online shopping services and mobile payment. However, this is just a start. The world’s leading tech companies are planning to build smarter online communities. 【小题1】 It was held in Wuzhen, Zhejiang last year. The development of artificial intelligence(AI, 人工智能) was a hot topic at the conference. If a machine can learn and solve problems as humans do, it can be called AI.

The company Alibaba uses AI technology in its unmanned supermarket in Wuzhen. There is no salesperson in the supermarket, just a tablet on a desk that says “please smile”. 【小题2】 The bigger you smile, the more discounts(折扣) you get. Payment is done automatically through your Alipay account. When you first enter the supermarket, the supermarket’s AI recognizes your face and your account.

There is also AI that can read lips. 【小题3】 It recognizes your mouth’s movements and turns them into voice or text messages. This could be very useful when you are trying to talk to someone on your phone in a noisy place. Police could also use the technology to help them find criminal suspects by lip-reading recordings from video cameras.

【小题4】 Microsoft’s chatbot XiaoIce can not only provide useful information, but also chat with people like a real friend. XiaoIce has a WeChat account. After following the account, users can start talking with her. 【小题5】 She keeps improving herself by talking with users.

These technologies are being put into wider use. We may see a smarter world and better lives in the near future.

A．She knows when to comfort you or tell jokes.

B．They discussed this at the World Internet Conference.

C．AI technology will take jobs away from humans one day.

D．Sougou brought its lip-reading system to the conference.

E．If you smile, it will give you a special discount for your goods.

F．Another type of AI focuses on understanding human emotions.

Almost two-thirds of all adults now surf the Internet. We spend more and more of our time looking at computer screens. The question is whether this behaviour is driving human beings apart or bringing us together. Will the Internet make the world a happier or less happy place?
The social scientist Robert Putnam said, “I think people are still not sure about whether the Internet is going to be a kind of telephone for making connections with other real people, or a television, that is yet one more screen in front of us. I'm also doubtful about a complete virtual (虚拟的) community – that is the idea you can be best friends with someone that you don't even know.”
However, all is not lost. Research in the UK has shown that people who surf the Internet have more friends than those who do not. Robert Putnam says the key is in mixing the real and virtual experience.
The huge growth in e-mails, blogs and messenger services has created a host of new social networks which defy geography. Teenagers, especially, increasingly keep in touch with friends online but they are also developing new relationships with people who may share an interest but live on the other side of the world.
A new innovation (创新) is the creation of virtual worlds which promise a social life in virtual space. Second Life is an Internet community with a population of more than 100,000 real people. Each member of the community controls a 3-dimensional puppet (三维木偶) called an avatar which show their personality. They can then take part in many kinds of social activities – parties, dancing classes and shows.
Could this be the answer to social loneliness in the real world?
Aleks Krotoski, a video games inventor, says the Internet offers new possibilities: “These virtual spaces are able to create happiness between people. There's so much socially in these places now. It's very much about a place to go to events, meet people or just chat. I can imagine that this kind of thing is what the Internet is going to be like in the future. It will be like a 3-dimensional space that actually looks very much like the real world.”
【小题1】According to Robert Putnam, ______.

A．the Internet is a device to connect with real friends

B．more people surf the Internet now to make more friends

C．we had better make friends in both real and virtual worlds

D．you can find your best friend in complete virtual communities

【小题2】The underlined word “defy” in Paragraph 4 probably means ______.

【小题3】We can infer from the passage that ______.

A．all Internet communities will be 3-dimensional in the future

B．people can have social life in virtual spaces like real world

C．virtual spaces will be the only way to create happiness

D．Second Life will never make people feel lonely

【小题4】What is the best title for the passage?

A．Does happiness live in virtual spaces?

B．Are teenagers getting closer to each other?

C．Do video games help with social loneliness?

D．Do virtual communities look like real world?

AI (人工智能) makes our lives easier and better. Let's see the amazing AI.

Cool driverless bus A bus door opens and you get on. Wait, where is the driver? Here is a new kind of driverless bus called Apolong. It can seat 14 people and doesn't need a driver. The bus follows traffic rules. It stops every time it sees a stop light.	Your close friend Hi, everyone. I'm Xiaoice, a chatbot (聊天机器人). I speak like a 17-year-old girl. If you feel lonely, you can talk with me. I'm good at singing, writing poems and telling stories. I want to be your friend!
World's first AI anchor Hey, look! The famous Chinese anchor (主播) Qiu Hao is reporting the news for us. But, is " he" really Qiu Hao? The answer is "no". This is the world's first AI anchor. It looks and speaks just like a real person. It speaks both Chinese and English. It can work 24 hours without any mistakes. The AI anchor joins Xinhua's reporting team. You might see it on TV soon.	Popular AI artist This beautiful painting was at an auction (拍卖) in 2018. It sold for about 3,000,000 yuan! But it is not a work by a famous painter, such as Vincent van Gogh. It was painted by an AI artist. Three Frenchmen created the AI. The AI artist studied over 15,000 paintings. In this way, it learned to paint. Now it is among the most popular artists in the world.