| A．Eat out. | B．Stay in. | C．Go to the movies. |
2 . It’s a race against time, as generations of cultural heritage conservators at the Dunhuang Academy make a great effort to protect the artistic charm of the Mogao Caves, a UNESCO World Heritage Site, despite erosion (侵蚀) by sand and wind.
The team is devoted to protecting the 45,000 square meters of murals (壁画) and more than 2,400 painted sculptures of the 735 caves of the site, the construction of which spans about a thousand years, from the 4th century to the 14th century. The cultural relics are the product of the cultural exchanges that took place over centuries on the ancient Silk Road. “Our work, repairing murals and painted sculptures, is to better preserve the caves, which promotes the great Dunhuang spirit of inclusiveness to the world and inspires modern people,” says Su Bomin, director of the Dunhuang Academy.
Commonly seen “diseases” affecting the murals include cracking and flaking, as well as erosion that is caused by changes in temperature and humidity of the caves, and the deposition of salts. To restore a mural requires an all-rounder. Restorers should know painting, master the skills of a mason and have some knowledge of chemistry and physics, to be able to recognize the problems and their corresponding causes and deliver a solution. They must also select proper materials and tools, and conduct experiments, before formally carrying out the restoration and evaluating the effect afterward.
The restoration should respect the original work and aim to maintain the status quo of the murals rather than repainting them. When the restorers find some parts of murals missing or fading away, they never repaint them to create a “perfect” appearance in restoration. “Cultural relics are witnesses of history,” explains Su. “When you pursue the so-called intact (完好无损的) look for artistic reasons, you will lose their key meaning.”
Cave conservation is about continuously solving problems. “It needs a long-term research to better preserve the caves, over a much wider time span that goes beyond our lifetimes,” Su says. But at least, they can keep the current look of the murals for as long as possible.
1. What is the main purpose of paragraph 2?| A．To show the popularity of Dunhuang murals. |
| B．To explain the history of the ancient Silk Road. |
| C．To stress the significance of the restoration work. |
| D．To present the ways of protecting cultural heritage. |
| A．Demanding. | B．Well-paid. | C．Interesting. | D．Creative. |
| A．Spotting the faded murals in time. |
| B．Fixing the missing parts of murals. |
| C．Maintaining the current look of murals. |
| D．Repainting to perfect the appearance of murals. |
| A．The Artistic Charm of Mural Paintings |
| B．The Mural Restoration in the Mogao Caves |
| C．The Successful Experiment on Cave Conservation |
| D．The Role of the Dunhuang Spirit in Chinese Culture |
3 . The exhibit, Digital Dunhuang — Tales of Heaven and Earth, which was held at the Hong Kong Heritage Museum, brought to Hong Kong more than 100 exhibits including the visual murals and other related programs that could allow visitors to learn about the art and history of the Mogao Caves in a fun way.
“Dunhuang was an international city, a place where East met West, on the old Silk Road. So the Mogao Caves, which were completed in a period of over 1,000 years, record the ways of life and beliefs of the different peoples that crossed paths there,” explained Fion Lin of Hong Kong Heritage Museum.
Visitors can now get up close and personal with these faraway treasures without having to step into the caves, thanks to the digitization project of the Dunhuang Academy, a pioneer that has made great progress in the digitization and 3D scanning of the Dunhuang treasures.
“Studies have shown that in a cave, both temperature and CO2 concentration level can rise with 15 tourists inside for ten minutes. As a result, the wall paintings are going to eventually fade. Digital technology has helped to strike a balance between sharing the treasures and protecting them,” said Lin.
However, digitization of the caves faces many challenges such as poor lighting and rough wall surfaces. On average, 40,000 pictures have to be taken to cover 300 m2. Great amount of efforts have been made to piece the pictures together. What the exhibition presented is the result of years of hard work.
During the exhibition period, a mini display on Dunhuang music culture was also being held at the Museum for public participation.
1. What could visitors see at the Digital Dunhuang exhibit?| A．The Mogao Caves. | B．About 40,000 Dunhuang pictures. |
| C．Digital Dunhuang wall paintings. | D．Ancient records of Dunhuang. |
| A．It helps Dunhuang become an international city. |
| B．It lets people better appreciate the Dunhuang art. |
| C．It is effective in cutting the CO₂ level in the caves. |
| D．It attracts more tourists from East and West to Hong Kong. |
| A．They are brightly lit. | B．They are very rough. |
| C．It is very hard to protect them. | D．It is impossible for the tourists to see them. |
| A．In paragraph 2. | B．In paragraph 3. |
| C．In paragraph 4. | D．In paragraph 5. |
