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题型:阅读理解-阅读单选 难度:0.65 引用次数:152 题号:15071608

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.
2. From Paragraph 3 we learn that ________.
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.
3. 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.
4. 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.

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文章大意:这是一篇说明文。文章主要介绍了机器人未来的发展和对人类生活产生的影响。

【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.
2. How does the author develop the second paragraph?
A.By making comparisons.B.By analyzing the reasons.
C.By listing figures.D.By giving different opinions.
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A.They will help humans earn more money.
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C.They will take over most areas of people’s future life.
D.They may do more good than harm to humans’ future.
4. What does the underlined word “behooves” in the last paragraph probably mean?
A.Origins.B.Applications.C.Choices.D.Challenges.
2022-07-01更新 | 107次组卷
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【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.    1     .

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.     2     . AI will also make the restoration and preservation of existing cultural heritage far easier and is vastly superior to previous methods.

Airborne technology (机载技术) is being increasingly used in the fight to preserve our cultural heritage.     3    

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.    4     , VR technology will gradually become the way that people experience them. We’ll all eventually be able to walk through places, look at (and touch!) artifacts and works of art without ever seeing them with our own eyes.

    5    . Efforts in research, data sharing and project work will need to be pooled internationally. Using the technical expertise of specialist organizations will become ever more important to the sustainable promoting and preserving of the cultural heritage of countries all across the world.

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【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. ”

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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.
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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.
2020-01-29更新 | 240次组卷
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