题目内容
How fast might your mobile phone network be in the future? After 3G and 4G, 5G is on the way. 5G (from “the fifth-generation mobile networks”) is the latest generation of mobile communications, including extreme high bandwidth(宽带), low latency(低延时), and high density(高密度) connections. According to Science Daily, 5G tests are expected to start in 2019 in the US and by 2020 in the UK. China has already tested 5G in10 big cities and announced the start of 5G this year.
As a result of the increased size of networks, data transfer will be much faster and more reliable.5G is expected to be 10 to 100 times faster than the average speed of the current 4G network. It may enable many new uses that are impossible on older networks. For example, you can download a film within just 3 seconds. This used to take a few minutes with a 4G network. In addition, there will be enough capacity(容量) for everyone to chat on social media and watch movies on their phones. Scientists say 5G will help the development of self-driving cars and the “5G man-like robot”as well. Most importantly, 5G will help us build the Internet of things(IoT,物联网). loT connects everyday devices to the Internet. People can control their devices remotely. For example, on a hot summer’s day, you could tum on your air conditioning with loT before you go home. All of these things need very fast Internet speeds.5G will be the key.
Every single day, our technology seems to shift up a level. Some big companies like Huawei and Samsung have started to deliver. 5G products. 5G technology is becoming reality, It will make some unimagined changes. Let’s wait and see what it brings.
1.What does the sentence“5G is on the way” mean according to Paragraph One?
A.China, the US and the UK are expected to start 5G in 2019 and 2020.
B.3G, 4G and 5G are the newest generation of mobile communications.
C.China has already used 5G in ten big cities and will use 6G next year.
D.5G will be 10-100 times bigger than 4G network at the present time.
2.What is the second paragraph mainly about?
A.5G may enable many new uses. B.The importance of 5G's company.
C.New inventions of 5G company. D.The huge capacity 5G will bring.
3.What great change will there be with 5G?
A.Man-like robots will be invented. B.Self-driving cars will be seen. ..
C.The Internet of things will be built. D.The Electronic keys will be found.
4.Where can you read the passage?
A.In a picture book. B.In a science magazine.
C.In a page of sports. D.In a book review.
