一、阅读理解（每小题只有1个选项符合题意，每小题2分，共20分）
A
Leonardo da Vinci began painting the Mona Lisa in 1503. He was working on a special painting for a church at that time, but the church painting was not going well. An Italian business man asked da Vinci to paint a picture of his second wife. This is the woman who can be seen in the Mona Lisa.
All in all the Mona Lisa is a very good example of da Vinci’s works and it satisfied the husband. Da Vinci used darkness and light in a clever way in the painting. Da Vinci loved science and math. Right away a person can see that there is a lot of geometry(几何形状)in the Mona Lisa. The face of the Mona Lisa is made of many circles and round shapes like balls . Even her smile can be seen as a small part of a large circle.
