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题型:阅读理解-阅读单选 难度:0.65 引用次数:150 题号:12607478

If you live in a city, then it's easy to take internet connectivity for granted, but in more rural areas,it is a different story. Connectivity is uneven. As of 2018, the last time figures were published, seven per cent of rural households could not access broadband faster than lOmbps,despite the average speed in cities being 52mbps. Around the wcrld, there are still huge areas of territory, from deserts to oceans, that the internet is still yet to reach.

But the urban/rural divide could be set to disappear over the next few years thanks to rocket company Spacex and an astonishingly ambitious project called Starlink. The aim is to use thousands of satellites in orbit above our heads to deliver broadband-comparable internet speeds to literally everywhere on Earth, with no need for expensive wires, transmitters or other infrastructure on the ground. Claims have been made that it could reach speeds of up to lGbps, which is 20 times faster than what most British homes receive today.

Spacex will need to launch thousands of satellites to fully complete the network over the Earth. At present, there are only around 2,000 or so other satellites in Lower Earth Orbit in total. So if Starlink's ambitions are realised, it could double or triple the number of satellites in orbit.   So far, just over 700 have been successfully launched by the company and the first internet connections using the system are already being tested.

It is likely that over the next few years, Starlink could begin to offer ground-station satellite receivers that will connect to' the satellites and then, in turn. you could connect your computer or phone to that   However, not everyone loves Starlink. There is one drawback to having so many satellites in orbit around the Earth : they risk making life a lot more difficult for astronomers

Ultimately though, for all of the protestations, it is surely unavoidable that Starlink, will become an essential part of Earth's telecommunications backbone. The obvious usefulness of such a network 'would be just too exciting for governments, businesses ,and individuals to resist. The urban/rural digital divide will no longer exist.

1. The word "uneven" in Para. 1 is closest in meaning to         .
A.variousB.slow
C.accessibleD.unbalanced
2. What's the purpose of Starlink?
A.To launch satellites in orbit over our head.
B.To use satellites to deliver internet connection to almost the whole world.
C.To reach speeds of up to 1Gbps.
D.To offer ground-station satellite receivers.
3. What's the author's attitude toward Starlink?
A.Skeptical.B.Favorable.
C.Disapproving.D.Ambiguous.
4. What can we infer from the passage?
A.Spacex has launched l,400 satellites in orbit.
B.We can have phones directly connect to the satellites now
C.All people don't love Starlink.
D.Governments, businesses and individuals resist such a network.

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阅读理解-阅读单选(约260词) | 适中 (0.65)
真题
【推荐1】Passage 1
The Information Highway is the road that links computer users to a large number of on-line services: the Web, e-mail, and software, to mention just a few. Not long ago, the information Highway was a new road, with not many users. Now, everyone seems to want to take a drive, with over 30 million families connected worldwide. Not surprisingly, this well-traveled highway is starting to look like a well-traveled highway. Traffic jams can cause many serious problems, forcing the system to close down for repair. Naturally, accidents will happen on such a crowded road, and usually victims are some files, gone forever. Then, of course, there’s Mr. Cool, with his new broad-band connection, who speeds down the highway faster than most of us can go. But don’t trick yourself; he pays for that speeding.
Passage 2
Want to know more about global warming and how you can help prevent it? Doctor Herman Friedman, who is considered a leading expert on the subject, will speak at Grayson Hall next Friday. Friedman studied environmental science at three well-known universities around the world before becoming a professor in the subject. He has also traveled around the world observing environmental concerns. The gradual bleaching (变白) of the Grate Barrier Reef, which came into the public eye in 2002, is his latest interest. Signed copies of his colorful book, which was published just last month, will be on sale after his talk.
1. The Information Highway _________.
A.appeals to a large number of users
B.is crowded with car drivers
C.offers just a few on-line services
D.is free from traffic accidents
2. How does Mr. Cool manage to travel the Information Highway so fast?
A.By storing fewer files.
B.By repairing the system.
C.By buying a better computer.
D.By using a broad-band connection.
3. What can be learned from Passage 2?
A.There will be a book show at Grayson Hall.
B.Friedman is now studying the Great Barrier Reef.
C.There will be a talk on global warming this week.
D.Friedman is a leading expert on computer science.
4. Passage 2 is most probably     .
A.a poster about a lecture
B.an ad for a new book
C.a note to a doctor in a university
D.an introduction to a professor
2016-12-13更新 | 213次组卷
阅读理解-阅读单选(约370词) | 适中 (0.65)
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【推荐2】China will continue to improve its policies and beef up support to speed up commercial use of the 5G network, an official with the country’s top industry regulator said on Tuesday.

Wen Ku, a spokesman for the Ministry of Industry and Information Technology, said the ministry will continue to support the development of the super-fast fifth-generation wireless technology by telecom carriers and encourage local authorities to come up with more support policies.

Chen Zhaoxiong, vice-minister of Industry and Technology, said that the development of the 5G network could give rise to massive opportunities in industrial growth and job creation. The ministry will make continuous efforts to promote the use of 1000Mb broadband connections and expand the coverage of fiber-optical broadband services, he said. Meanwhile, the ministry will upgrade telecom networks and operation systems by the end of November to ensure that mobile phone users nationwide can switch service carriers without changing phone numbers, he said. He explained that it could require substantial (大量的) efforts as it involved the upgrading of operation systems of a total of 1.6 billion users in the country.

In the meantime, a “floor-price” will be set for low-income and elderly populations to further promote mobile networks, he said. In order to better protect the rights of consumers, the number of service packages offered by the telecom carriers will be trimmed(削减)by more than 15 percent this year, according to Wen. Carriers are also required to make public all their service packages and make them all available for the users, he added. “We will step up investigations on wrongdoings so that consumers can see their telecom bill plain and clear,” he said.

China has expanded the download speed of mobile broadband sixfold compared with five years ago, while the charges for broadband connections and mobile Internet were down by 90 percent, according to the Ministry of Industry and Information Technology.

China’s digital economy reached a total volume of 31 trillion yuan ($4.5 trillion), or 34.8 percent of its GDP, in 2018, according to the ministry.

1. Which of the following best explains “beef up” underlined in Paragraph 1?
A.Obtain.B.Focus.C.Attract.D.Strengthen.
2. According to Paragraph 4, Chen Zhaoxiong’s attitude towards the 5G network is ______.
A.uncaringB.doubtfulC.positiveD.negative
3. What can you know about the 5G network from the text?
A.Its development could bring more chances in job creation.
B.Its charges are higher than former networks.
C.It is already widely used in commerce.
D.Its download speed is sixfold faster than former networks.
4. What can be a suitable title for the text?
A.The Advantages of 5G Network
B.Efforts Made for 5G Network
C.Concerns for 5G Network
D.The Rapid Development of 5G Network
2020-04-07更新 | 154次组卷
阅读理解-阅读单选(约340词) | 适中 (0.65)
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【推荐3】One of the biggest ideas in computer technology is cloud computing. The system is changing the way information is kept. It uses a group of computers or servers to store information instead of one. The data floats around like clouds instead of being saved on any computer. It means computers can be smaller than ever and store practically unlimited amounts of information. No longer are bulky computers needed because all the information is in the clouds.

So when will cloud computing start affecting the way you use computers? You may not have noticed, but it already has. Facebook, Amazon, Twitter and many other sites all run on cloud computing. Cloud computing is really useful. You can use it to access the same file at work at home or in other countries on different computers. There may even be environmental benefits, too. Gmail, which uses cloud computing, says that the system saves a lot of energy.

However, potential problems do exist such as losing information and not being able to access certain files when the internet is down. Also, some companies charge fees for their cloud computing services. Another major problem is security. If all your Information is out there in the cloud and not safely stored on your own computer or laptop, it may be possible for other people to access it. More and more of our personal information is in danger of being stolen. Therefore, it is important to be careful and to find ways of making the information secure.

More and more companies are starting up and offering cloud computing. Will the company be reliable? What will happen to your data if the company goes out of business? There are real worries. Even so, for those interested in computing technology, one thing is for certain ---the future in the clouds is going to be very exciting.

1. How does the author describe the data?
A.It needs only a single server.
B.It is a cloud floating around computers.
C.It makes computers become smaller.
D.It improves the computer’s function.
2. What can we learn from the passage?
A.Cloud computing will come into use soon.
B.Files will be entered when the Internet is down.
C.Personal information may be lost if not kept properly.
D.Companies will enjoy free cloud computing services.
3. What’s the author’s attitude towards cloud computing?
A.Worried.B.Positive.
C.Unclear.D.Cautious.
4. The purpose of the passage is                .
A.to introduce cloud computing to us
B.to talk about the way computers change
C.to warn us to be careful to use computers
D.to tell us how to access information on other computers
2020-06-13更新 | 79次组卷
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