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题型:阅读理解-阅读单选 难度:0.65 引用次数:54 题号:12341205

All over the globe and in some of the world's most prestigious art galleries and museums there is always one form of artwork that you'll find gracing the walls-watercolors.

Creating artwork using watercolors is one of the most popular ways of capturing beautiful scenery, painting life-like portraits and studying still-life objects. However, an unfortunate side effect of using watercolors is that they begin to fade over time, and as the years go by there is a risk of these masterpieces being lost to us forever. But just how do we prevent these wonderful paintings from disappearing? Well, thanks to the advances of modern technology, we now have the ability to scan watercolors, capturing every detail of them in the process and then saving them in a digital form.

Not only does this help to preserve the artwork in a very modern way, but when these digital captures are uploaded to a website, it offers the public more chances to appreciate them. One such website is Water colour World, which is one of the many organizations supported by Javad Marandi, one of the Joint Chairs of the Marendi Foundation which helps to provide opportunities in education, and supports some of the most vulnerable communities in the United Kingdom, as well as art and cultural initiatives. Scanning watercolors is certainly a lot more advanced than the usual scanning you might be more familiar with. Keeping the liveliness of the painting, the depths of the colors requires the correct equipment, software and a great eye for detail.

If you're an artist and you'd like to digitize (数字化) your watercolors through scanning, or if you're generally interested in how it's achieved, we've broken down the process below to give you a better idea of how art is transformed from paint to pixels (像素)!

1. What is the disadvantage of watercolor paintings?
A.They are easy to be stolen.B.They can't last a long term.
C.They make people unfortunate.D.They are only about natural scenery.
2. How can we make digital scanned water colors more available to people?
A.By capturing every detail.B.By educating community citizens.
C.By moving them to a website.D.By supporting more organizations.
3. What can he inferred about scanning watercolors according to Paragraph 3?
A.It is quite demanding.
B.It helps to preserve the artwork.
C.It is simpler than usual scanning.
D.It is invented by Watercolor World.
4. What will be probably mentioned in the following paragraph?
A.How watercolors are digitized.
B.Why paints need to be transformed.
C.How the idea of scanning came into being.
D.What watercolors will become through scanning.

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文章大意:这是一篇说明文。主要介绍了一款最新设计——可以制作、烹饪菜肴的3D食物打印机。

【推荐1】Tomorrow’s food experts’ menus could feature items prepared with complex cooking techniques and presentation—all at the push of a button. Columbia University mechanical engineers have designed a 3-D printer that can produce and cook dishes at the same time with details at the millimeter scale.

The proof-of-concept design, described in Science of Food, combines a multiwavelength laser cooker, roughly the size of five smartphones put together, with a microwave-oven-sized food printer. Beyond applying complex substance and presentation designs, this type of software-controlled setup could someday scan a QR code to automatically prepare dishes adapted to individual eating habits and dietary requirements, says Blutinger, lead author of the paper and a digital-cooking researcher at Columbia.

The new technology is “astounding”, says Megan Ross, a food scientist who studies 3-D printing at Ireland’s University College Cork and was not involved in the study. Ross notes that the design is still at an early stage and that many technical challenges still remain, such as preventing cross contamination (交叉污染) between layers of uncooked and cooked meat. Still, Ross is impressed by the device’s ability to produce foods outside the kingdom of traditional cooking. “Is this going to be sold in shops everywhere in the next few years? No,” she says. “But everyone has to start somewhere.”

Compared with 3-D-printed chicken cooked in a traditional oven, the laser-cooked chicken had nearly twice as much weight and size, the researchers found. “That chicken is going to be juicy,” says Liam Macleod, a Denver-based chef (厨师) and former 3-D food printing specialist at the Culinary Institute of America who was not involved in the study. Macleod does not think such technology will ever replace chefs, but it might “add a tool to their collection” to deliver a new sensory experience. “Cooking is a skill set that has been practiced and perfected for thousands of years,” he says. “It’s very exciting to come up with something new and unique that people haven’t experienced yet.”

1. What do we know about the technology?
A.It’s improved from a previous one.
B.It has received popularity in the US.
C.It is easy to operate.
D.It will come into the market soon.
2. What is Ross’s opinion towards the new technology?
A.FavorableB.UnconcernedC.DoubtfulD.Unfavorable
3. What does Macleod think about the technology?
A.It will probably replace cooks in the future.
B.The food produced will save much space.
C.It will not stand the test of time.
D.It will be of great help to cooks.
4. What can be a suitable title for the text?
A.An Improved Food System
B.Laser-Focused Chef
C.3-D Food Printer Invented
D.Juicy Chicken:Are You For It?
2023-06-28更新 | 67次组卷
阅读理解-阅读单选(约320词) | 适中 (0.65)
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【推荐2】To persist, life must reproduce. Scientists at the University of Vermont, Tufts University, and the Wyss Institute for Biologically Inspired Engineering at Harvard University have discovered an entirely new form of biological reproduction and applied their discovery to create the first-ever, self-replicating (自我复制的) living robots.

Named Xenobots after the African clawed frog from which scientists take their stem cells, the machines are less than 0.04 inches wide——small enough to travel inside human bodies. They can walk and swim, survive for weeks without food, and work together in groups. They even have regenerative capabilities; when the scientists sliced into one robot, it healed by itself and kept moving.

The Xenobots could potentially be used toward a host of tasks. Xenobots could be used to clean up radioactive waste and collect microplastics in the oceans. Some Xenobots had holes in their center, which could potentially be used to transport drugs or medicines. Traditional robots “degrade (降解) over time and can produce harmful ecological and health side effects," researchers said in the study, which was published in the Proceedings of the National Academy of Sciences. As biological machines, Xenobots are more environmentally friendly and safer for human health. Aside from these immediate practical tasks, Xenobots could also help researchers to learn more about cell biology——opening the doors to future advancement in human health and longevity.

While the prospect of self-replicating biotechnology could spark concern, the researchers said that the living machines were entirely contained in a lab and easily destroyed, as they are biodegradable and regulated by experts."There are many things that are possible if we take advantage of this kind of plasticity (可塑性) and ability of cells to solve problems,”said Joshua Bongard, one of the lead researchers at the university of Vermont.

1. Which of the following best explains “regenerative” underlined in paragraph 2?
A.Fighting disease.B.Recovering and growing again.
C.Self-cleaning regularlyD.Replacing old cells
2. What can we learn about Xenobots from paragraph 3?
A.They can be widely applied to cure diseases.
B.They are harmless to the environment by degrading plastics.
C.They are specially designed to collect radioactive waste.
D.They can serve well the research on human health.
3. What is Bongar's attitude towards the self-replicating biotechnology?
A.Doubtful.B.Indifferent.C.Positive.D.Ambiguous.
4. What does the text mainly talk about?
A.The invention of the first self-reproduction robots.
B.An application of a machine in medicine.
C.The trend of developing biotechnology.
D.An experiment on African clawed frogs.
2022-03-14更新 | 78次组卷
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【推荐3】Booking your next vacation to space with out-of-this-world views could soon be a reality. Orbital Assembly Corporation announced two new station concepts designed with space tourism accommodations. One of the stations, called Pioneer, could orbit Earth as early as 2025.

The Gateway Foundation circulated ideas for a space hotel in 2019. The goal of the stations is to run a space business park that can serve as a home away from home with room for offices and tourists. Orbital Assembly was founded by the Gateway Foundation team as a way to help make these dreams come true.

The proposed Pioneer station can accommodate 28 people. The second station, Voyager, scheduled to open in 2027, can hold up to 400 people. “The goal has always been to make it possible for large numbers of people to live, work and thrive in space,” says Orbital Assembly’s COO Tim Alatorre.

Both stations look like a wheel and will feature artificial gravity that allows guests to move comfortably on each station. Pioneer features five modules built around the rotating “Gravity Ring” architecture design. Tourists may still feel some weightlessness but will also be able to drink out of a cup and won’t have to be tied to a bed to sleep. The gravity works similar to how a spinning bucket pushes the water out to the sides of the bucket and stays in place, Alatorre explains. Near the middle of the station, there will be no artificial gravity, but gravity gradually increases further away from the center.

While the Pioneer station will be smaller than Voyager, guests can still shower, eat and drink sitting down in areas with gravity. Each station is furnished like luxury hotels on Earth. Voyager will feature a restaurant and suites with views of Earth.

A significant barrier to space travel is the cost. However, Orbital Assembly expects tourists to seek a trek into space as space travel eventually becomes less expensive. “We envision our Pioneer and Voyager space stations as the ultimate ecotourism destinations. Once people get to space, it will change their perspective about Earth,” Alatorre says. “Space travel is still at its early stage, and we’re excited to do our part to push it forward to help improve life on Earth.”

1. What is the goal of the Pioneer and Voyager space stations?
A.To revolutionize space travel.
B.To serve as luxury hotels in space.
C.To offer a unique and immersive experience.
D.To enable large scale living and working in space.
2. What do the Pioneer and Voyager stations have in common?
A.Open time.B.Artificial gravity.
C.Suites with views.D.Passenger capacity.
3. What can we learn from paragraph 4?
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B.The gravity is weak in the central point of the station.
C.The gravity operates like a spinning bucket keeping water inside.
D.The “Gravity Ring” on Pioneer is the same with that on Voyager.
4. What can be a suitable title for the text?
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B.Overcoming the Barrier: Pioneer and Voyager Stations
C.Space Hotels for Humans: Pioneer and Voyager Stations
D.Luxury Travel Destinations: Pioneer and Voyager Stations
2023-10-31更新 | 69次组卷
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