Before war and time destroy more of our important cultural sites, we need to save them in 3-D digita
英语试题 08-10
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(虚拟的), through 3-D scanning, modeling and digital storage. Such projects can be accomplished 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.
12. 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.
13. What is Paragraph 3 mainly about?
A. The function of a laser scanner. B. The reflection of light off an object.
C. The process of making a 3-D model. D. The development of 3-D digital technology.
14. What do we know about the Kasubi Tombs in Uganda?
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.
15. What does the author intend to say through this text?
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.
【答案】
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(虚拟的), through 3-D scanning, modeling and digital storage. Such projects can be accomplished 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.
12. 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.
13. What is Paragraph 3 mainly about?
A. The function of a laser scanner. B. The reflection of light off an object.
C. The process of making a 3-D model. D. The development of 3-D digital technology.
14. What do we know about the Kasubi Tombs in Uganda?
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.
15. What does the author intend to say through this text?
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.
【答案】
苏19057182-3号