题目内容：

Time, wars and natural disasters have a bad effect on the artistic and cultural objects in the world. More than 1,000 years ago, a fire destroyed the  Library of Alexandria in Egypt. In 1755, an earthquake destroyed Ribeira Palace in Lisbon, Portugal, along with artworks inside. In modern times, the Taliban destroyed the huge Bamiyan Buddhas in Afghanistan.

    As we all know, museums play an important part in our daily liv es. They store evidence of culture and history and exhibit great works. A major goal of most museums in the world is to make sure that important historical objects do not disappear forever. The Uffizi Gallery in Florence, Italy, holds 1,250 pieces of ancient Greek and Roman sculpture. These objects have inspired artists and historians for many years. So the museum is working to make a complete and permanent (永久的) record of the artworks.

    The project is an effort of both the museum and the scientists from Indiana University in the United States. The team is using technology to create digital copies (数字复制品) of Uffizi’s ancient sculptures.

    The process is called photogrammetry (摄影制图法). At one time, this process was slow and expensive. But not anymore, said Professor Robert Frischer. He said photogrammetry is now much faster and cheaper. Now they can gather the 3-D data on a life-size sculpture in half an hour and they can process the data just in a couple of hours.

    The images allow the viewer to examine the sculpture from all sides. And when the viewer zooms in (用变焦距镜头放大), the image becomes clearer. The Uffizi hopes to have the collection completed and available on the Internet by 2020.

1.What can we learn about the world’s artworks?

A. Some of them have been destroyed.

B. They were destroyed by accident.

C. They were not protected by humans.

D. Most of them are kept in Afghanistan now.

2.Why do Uffizi Gallery and Indiana University work together?

A. To build the largest museum.

B. To create long-lasting artworks.

C. To introduce some ancient sculpture.

D. To encourage more artists and historians.

3.What can we learn about photogrammetry?

A. It is still expensive.

B. It is a time-saving step now.

C. It does great harm to the artworks.

D. It was invented by Robert Frischer.