Before war and time destroy more of our important cultural sites, we need to save them in 3-D digital libraries. Across 163 different countries, 1,000 natural and cultural historic places make up our most precious human heritage, which UNESCO calls World Heritage Sites.
We lose a little of that heritage every day. War, climate change and pollution have a bad effect, as do wind and rain. The $4 million a year that UNESCO spends on preservation is not nearly enough to take care of even the four dozen sites considered at approaching risk of being lost forever. Now there’s a better choice. New digital-conservation technologies let us hold on to them, at least virtually (虚拟地), through 3-D scanning, modeling and digital storage. Such projects can be accomplished (完成) through cooperation between governments, universities, industry and non-profit organizations.
To make a 3-D model, a laser (激光) scanner bounces light off an object and records the results. To reproduce every corner and opening, the scanner collects overlapping (重叠的) images from all possible angles. A computer then sews them together into one large surface image and draws lines from one point to another to create a wire-frame model. High-resolution digital cameras add color and texture. When fully put together, the models can be viewed, printed or operated.
These scans do more than preserve a memory in a database. With highly accurate measurements, archaeologists (考古学家) can find hidden passages or reveal ancient engineering tricks. School kids can explore places they might otherwise never see. And when a site is destroyed, the scans can even be used to reconstruct what was there. That has already happened for one World Heritage Site, the Kasubi Tombs in Uganda. Built of wood in 1882, they were destroyed by fire in 2010 and rebuilt in 2014, based in large part on 3-D models made in 2009. More than 100 World Heritage Sites have been already preserved as 3-D models, and conservationists are racing to record as many more as possible.
1. How does the author show the necessity for 3-D digital libraries in the first two paragraphs?A.By listing the threats to our human heritage. |
B.By introducing some damaged historical sites. |
C.By quoting some experts’ views on heritage protection. |
D.By explaining UNESCO’s research on World Heritage Sites. |
A.The function of a laser scanner is to add color and texture to the image. |
B.The reflection of light off an object is recorded in a computer. |
C.The process of making a 3-D model is successfully carried out with the help of a laser scanner, a computer and high-resolution digital cameras. |
D.High-resolution digital cameras make the models viewable, printable, and operable. |
A.It is metal-framed. |
B.It is still in its original condition. |
C.It was once destroyed in an earthquake. |
D.It was reconstructed thanks to 3-D models. |
A.Never ignore the destructive power of war. |
B.Take action to reduce pollution in historic places. |
C.Take advantage of 3-D technology to keep history. |
D.Invest more money to preserve World Heritage Sites. |
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【推荐1】When we talk about robots, we may immediately think of sci-fi-inspired humanoid machines. While they primarily remain mythical (神话的), there are numerous more types of robots in use today. Robots differ from other machines in how they interact with the world. They have the ability to change their surroundings and respond to the world around them based on their actions. Yet, as we’ve seen, they’re not yet good for all areas of life. Will this, however, change in the future?
By the mid-2030s, business network PwC expects that robots will have automated up to 30% of occupations. According to some projections, the global stock of robots might reach 20 million by 2030, with automated labor displacing (替换) up to 51 million people in the next ten years. While robots are unlikely to take over the world, we may expect to see more of them in our everyday lives.
Robots are transforming the world by assisting people in performing tasks more efficiently and in ways that were previously impossible. Robots help with disaster response, improve physical abilities, serve in sectors that require human connection, and permit exploration beyond Earth’s borders. Robots are having a generally positive impact on the globe. They may be replacing some human employment, but they also improve efficiency, which improves economic activity, which in turn creates more opportunities for humans to develop new ways to earn money.
Machines and robots with the ability to learn could have an even wider range of behooves. Robots that can adapt to their surroundings, learn new procedures, and change their behavior in the future will be better suitable for more complicated activities. Robots have the potential to improve our lives in the long run. They may be able to improve healthcare and make transportation more efficient, in addition to shouldering the strain of physically demanding or repetitive work.
1. What makes robots different from other machines?A.The way they respond to the world. |
B.The surroundings they can adapt to. |
C.The diversity of their types and effects. |
D.The important role they play in the world. |
A.By making comparisons. | B.By analyzing the reasons. |
C.By listing figures. | D.By giving different opinions. |
A.They will help humans earn more money. |
B.They can free humans from housework completely. |
C.They will take over most areas of people’s future life. |
D.They may do more good than harm to humans’ future. |
A.Origins. | B.Applications. | C.Choices. | D.Challenges. |
【推荐2】Wherever we go, we are surrounded by history. Across the globe, cultural heritage (遗产) is passed down through the generations. Yet, we fight a never-ending and very expensive war to preserve it for the future. And today, it is under attack as never before. Technology is often seen as something that destroys the past.
Creating copies via 2D images is extremely laborious and time-consuming. AI technologies are being used to do all the required sourcing, allowing lots of images to be cross-referenced and stored in hours.
Airborne technology (机载技术) is being increasingly used in the fight to preserve our cultural heritage.
LiDAR (Light Detection and Ranging) has already been used to reveal over 60, 000 Mayan structures that were lying undiscovered in the jungles of Guatemala, without needing a single boot on the ground. Drones (无人机) are also being used to document and monitor huge areas and remove the need for all that costly manpower.
Human interaction with the most important sites and architecture is doing a great deal of harm. Virtual Reality (VR) technology will play a leading role in preserving our cultural heritage in the coming years.
A.It is being used to save and find it |
B.Technology has shaped conflict in several ways |
C.But it is now the most essential weapon in the battle |
D.Our cultural heritage will be protected via technology |
E.This will enable even better and more accurate copies to be created |
F.As more cultural heritage sites and objects are digitally mapped and recorded |
G.When it measures distances by hitting a target and analyzing the reflected light |
【推荐3】Whether paired with a bottle of nice red wine or a burger, cheese can be a delicious treat. But it is not perhaps, the ideal material to use in printing — unless you are a team of nutritional scientists. One group of researchers used 3D printing to create a cheese. And the cheese could provide a valuable insight for engineers who are still developing materials for 3D printing.
A team from the school of food and nutritional sciences at University College Cork (UCC) conducted a series of tests evaluating the 3D-printed cheese. 3D printing materials need to be fluid (液态) enough to flow but also capable of setting into a definite shape or structure.
After melting the cheese at 75°C (167°F) for 12 minutes, the UCC team then ran it through a modified commercial 3D printer. The machine, which usually prints with plastic, was fitted with a syringe (注射器) to allow it to print with the melted cheese.
The UCC team used several techniques to examine the effects of the 3D printing process on their cheese. They compared the 3D-printed results to processed cheese that had been melted and then cooled, as well as another sample that was left untouched. Cheese that was 3D printed was 45% to 49% softer than the processed cheese, the researchers said. They also discovered that 3D-printed cheese was a little darker in colour and more fluid when melted, though it melted at about the same temperature as processed cheese.
Dr Kelly and his colleagues are now testing other types of dairy products which can be 3D-printed. Dr Kelly said, “We are using mixtures of milk proteins at present to build a product, perhaps a high-protein snack, and designing recipes which might work best for a 3D printer. ”
1. What problems are the engineers facing in 3D printing a cheese?A.They don't have proper material. |
B.They can't find a bottle of nice red wine or a burger. |
C.They can't make the cheese very delicious. |
D.They know much less than nutritional scientists. |
A.They raised the temperature to 75°C. |
B.They added a syringe to the printer. |
C.They bought some cheese to paint it. |
D.They evaluated the 3D-printed cheese. |
A.It melts more easily. | B.It tastes more delicious. |
C.It costs less money. | D.It is much softer. |
A.Publish a report on their research. |
B.Invent a new 3D printer. |
C.3D print more milk food. |
D.Make more cheese with their machine. |
But popularity might be the destruction of such archaeological treasures.Take Tutankhamun’s tomb in the Valley of the Kings for example.It lay untouched for more than 3,000 years until the British archaeologist Howard Carter uncovered it in 1922.Now more than 1,000 people a day walk through it.
But as more and more people visit, the temperature and humidity inside the tomb change.As a result, the beautifully decorated plaster is coming away from the rock.
In order to preserve its heritage, a replica (复制品) of the monument is being opened about 1 kilometer away from the actual burial site.Specialists have recorded every detail of Tutankhamun’s tomb and used the data to recreate it.
Adam Lowe from the organization behind the project says the copy is identical to the original.He believes visitors will want to become part of the force that protects it rather than a force that is leading to its destruction.So they won’t mind seeing a replica.
But for historian Tom Holland, a copy is still a copy.He believes that although preservation is important, there is something unique about places like Tutankhamun’s tomb.He says it was built by people who believed in the world of the spirits, the dead and the supernatural.You don’t have to believe in a god or gods to feel a place is consecrated (使圣化) and has a particular quality that can’t be reproduced.
What about you? Would you visit a replica of a monument rather than the original to help preserve it?
1. What may account for the destruction of some archaeological treasures like Tutankhamun’s tomb?
A.Climate change. |
B.Copies. |
C.Popularity. |
D.Thieves. |
A.Decorating the monument again. |
B.Building a replica of the monument. |
C.Limiting the number of visitors. |
D.Moving the tomb away from the actual site. |
A.superior |
B.Sensitive |
C.Exposed |
D.similar |
A.some unique ancient places can’t simply be replaced by replicas |
B.visitors are advised to see replicas because preservation is first |
C.ancient civilizations are consecrated and can’t be redecorated |
D.visitors to ancient civilizations must believe in a god or gods |
【推荐2】Have you ever had the urge to open a book and stick your nose straight into the pages? The smell of old books can refresh any book lovers. We don’t know why, but it is just pleasant to us.
Describing the smell can be a challenge. And mere adjectives will likely be of little use to future generations of historians trying to document, understand or reproduce the scent of slowly decaying books. Now, that task may have just gotten easier thanks to the Historic Book Odor Wheel.
In one experiment, researchers asked visitors at the historic library to characterize the scents they smelled. All the visitors selected words like “woody”, “smoky” and “earthy” from the list, and described the smell’s intensity and perceived pleasantness. In another experiment, the study authors presented visitors to the Birmingham Museum with eight smells — one of which was an unlabeled historic book scent and seven were non-bookish, such as coffee, chocolate, fish market and dirty clothes. The researchers then had those museum goers describe the historic book smell.
The top two responses? Chocolate and coffee. “You tend to use familiar associations to describe smells when they are unlabeled,” study author Cecilia Bembibre says.
The team even analyzed the volatile organic compounds (VOCs) (挥发性有机化合物) in the book and the library. Using the data from the chemical analysis and visitors’ smell descriptions, the researchers created the Historic Book Odor Wheel to document the “historic library smell”. Main categories, such as “sweet/spicy”, fill the inner circle of the wheel; descriptors, such as “chocolate/cream”, fill the middle; and the chemical compounds likely to be the smelly source, like furfural, fill the outer circle. The researchers want the book odor wheel to be a tool that “untrained noses” can use to identify smells and the compounds causing them, which could address conservators’ concerns about material composition and historic paper conservation. And hopefully, smells of the past can be reproduced in the lab someday and museums and historians can use it to reconstruct a past we can no longer smell.
1. What is mainly talked about in the first paragraph?A.An strange reading habit. | B.Fascination for smells of books. |
C.Addiction to reading books. | D.A dislike for smelling books. |
A.By referring to familiar items. | B.By using adjectives to label them. |
C.By analysing chemical compounds. | D.By connecting them with food smells. |
A.To record historic library smells. | B.To identify smells and compounds. |
C.To remove the conservators’ worries. | D.To put different scents into different libraries. |
A.Creating a whole new scent. | B.Improving the people’s sense of smell. |
C.Restoring smells of historic documents. | D.Extracting components of “old book smell”. |
【推荐3】The traditional British pub is part of the scenery of British life. At a recent count, there are around 50000 of them in the UK, some of which date back to as far as the 5th and 6th centuries. The oldest---Ye Olde Fighting Cocks in St. Albans---was established in 795.
Because of their abundance, the names pubs take were designed to be memorable---but more than that, they were designed to be visual. Outside any traditional pub worthy of its title, you’ll find a hanging signboard with a unique illustration(插图)that represents the name of the business. The practice is so well established that even new pubs copy it. But why do they exist at all?
The first British pub signs were created in the 12th century and were simple representations of beer containers and other brewing-related equipment used to inform passersby that establishments sold beer. This was Britain in the dark ages, when education was in short supply. Since most of the population were unable to read, pub signs were used to inform would-be customers that they could find a drink inside.
The earliest uses of pub names would reference the sign directly. People would arrange to meet “at the sign of the Eagle and Child” rather than “at the Eagle and Child.”
Today the tradition remains unchanged largely out of respect for the past, but many pub signs do have some functionality. Remote country pubs often use signboards to point the way to their doors from more trafficked(可贩卖的)paths. It’s a part of British culture that’s rapidly disappearing---more than 20,000 pubs have closed since 1980—but for now there are still more than enough around that you can take a moment to appreciate the history and symbolism behind a pub’s sign the next time you see one.
1. What is special about British pub signs?A.They copy famous art | B.They show British life |
C.They have unique pictures | D.They include the history of the pub |
A.inspire passersby | B.inform passersby |
C.educate passersby | D.entertain passersby |
A.size | B.style |
C.material | D.purpose |
A.The history of British pubs |
B.The importance of British pub signs |
C.Why British pubs have illustrated signs |
D.Why British pubs are unpopular nowadays |
【推荐1】Scholars and researchers have tried to discover what personality characteristics go along with success in intercultural experiences. Their findings have often been unclear or incomplete. But three characteristics stand out in their reports: patience, a sense of humour, and the awareness of being unclear.
Patience, of course, is the ability to keep calm even when things do not go as one wants them to, or hopes they will, or has been sure they will. Impatience sometimes brings improvements in relations with other people, but usually it does not.
A person with a sense of humour is less likely to take things too seriously and more ready to see the humour in her own reactions. The value of a sense of humour really needs to be paid more attention to.
“The awareness of being unclear” is a more difficult concept than patience or a sense of humour. Foreigners often find themselves in situations that are unclear to the newcomers. That is, they do not know what is happening in the situation. Perhaps they do not understand the local language well enough, or they do not know how some system or organisation works, or they can’t be sure of different people’s roles in what is going on. “It’s like I just got here from the moon,” a Chinese graduate student who newly arrived in the United States said. “Things are just so different here.”
1. The passage mainly tells us _________.A.that it’s not easy to travel abroad |
B.that humour is very important in communication |
C.three characteristics in dealing with foreigners successfully |
D.three main ways useful for communicating with foreigners |
A.Patience. |
B.The awareness of being unclear. |
C.The sense of humour. |
D.Understanding each other. |
A.knowing the meaning of an exact situation |
B.not stating clearly what happens |
C.the ability to keep calm |
D.being aware of the unclear situation |
【推荐2】Consider the following statement: “My husband bought me a pink Lamborghini...” The correct way to finish the sentence, according to some, is not showing appreciation or acting excited, but to complain about the pricy gift. If you say, “The color is so ugly, men have such bad taste!” Congratulations, you have mastered the “Versailles (凡尔赛) literature.”
The term has nothing to do with the French palace nor with literature. It came from the Japanese manga series “The Rose of Versailles” and was coined by a Chinese influencer earlier this year. This new kind of bragging (吹嘘) is called humblebragging, the psychology behind which is to be recognized for one's successes and be liked by others at the same time. “The humblebragger recognizes that it's hard to be liked and be a showoff at the same time,” said psychologist Dr. Susan KraussWhitbourne at the University of Massachusetts Amherst.
In an article titled “Why people hate humblebragging” published in Psychology Today, Whitbourne noted that the humblebrag is a “strategy in pursuit of respect” because it draws attention to one's accomplishments, but in a roundabout (迂回的) fashion.
However, studies on social media users show that humblebragging, as a self-promotion strategy does not work. In the essay, “Humblebragging: A distinct-and ineffective-self-presentation strategy,” researcher Ovul Sezer concluded from his research that humblebraggers are perceived more negatively than straight braggers due to the former's insincerity. “The critical factor telling these strategies was sincerity. People don't like braggers, but they at least see them as more sincere than humblebraggers.”
“So, next time if you hear ‘My husband bought me a pink Lamborghini. The color is so ugly, men have such bad taste!’. Just pretend you don’t get whatever it is they try to show off.” a Zhihu user advised others on how to respond to a “pretentious narcissist”, “Respond with genuine sympathy for their complaint.”
1. Which of the following can replace the example in Paragraph 1?A.“I didn’t even have one look at my paper. I’m so over.” |
B.“I have eaten nothing today, but I'm heavier than yesterday.” |
C.“My husband bought me another Chanel purse. I love it so much.” |
D.“I don’t even remember buying a house. My memory is really failing with age.” |
A.Because they're really successful. |
B.Because they want to show their complaint. |
C.Because they want to be liked while bragging. |
D.Because they always want to be the center of the topic. |
A.Humblebraggers are dishonest |
B.Straight braggers are popular with us. |
C.Straight braggers are cleverer than humblebraggers. |
D.Humblebraggers' insincerity accounts for their unpopularity. |
A.How to avoid humblebragging. | B.Who might be a humblebragger. |
C.How to fight a humblebragger back. | D.What might hurt a humblebragger. |
Their cheery song brightens many a winter's day. But robins are in danger of wearing themselves out by singing too much. Robins are singing all night一as well as during the day, British-based researchers say.
David Dominoni, of Glasgow University, said that light from street lamps, take away signs and homes is affecting the birds' biological clocks, leading to them being wide awake when they should be asleep.
Dr Dominoni, who is putting cameras inside nesting boxes to track sleeping patterns, said lack of sleep could put the birds’ health at risk. His study shows that when robins are exposed to light at night in the lab, it leads to some genes being active at the wrong time of day. And the more birds are exposed to light, the more active they are at night.
He told people at a conference, "There have been a couple of studies suggesting they are increasing their song output at night and during the day they are still singing. Singing is a costly behaviour and it takes energy. So by increasing their song output, there might be some costs of energy."
And it is not just robins that are being kept awake by artificial light. Blackbirds and seagulls are also being more nocturnal. Dr Dominoni said, "In Glasgow where I live, gulls are a serious problem. I have people coming to me saying `You are the bird expert. Can you help us kill these gulls?'.During the breeding(繁殖)season, between April and June, they are very active at night and very noisy and people can't sleep."
Although Dr Dominoni has only studied light pollution, other research concluded that robins living in noisy cities have started to sing at night to make themselves heard over loud noise.
However, some birds thrive(兴旺)in noisy environments. A study from California Polytechnic University found more hummingbirds in areas with heavy industrial machinery. It is thought that they are capitalising on their predators(天敌)fleeing to quieter areas.
1. According to Dr Dominoni's study, what cause robins to sing so much?
A.The breeding season. |
B.The light in modern life |
C.The dangerous environment. |
D.The noise from heavy machinery. |
A.The environment might be polluted. |
B.The birds' health might be damaged. |
C.The industry cost might be increased. |
D.The people's hearing might be affected. |
A.Active at night. | B.Inactive at night. |
C.Active during the day. | D.Inactive during the day. |
A.Because there are fewer dangers. |
B.Because there is more food to eat. |
C.Because there is less light pollution |
D.Because there are more places to take shelter. |