Nearly 6 million people go to see the Mona Lisa every year，many attracted by the mystery of her smile.“It's very interesting that when you' re not looking at her，she seems to be smiling，and then，you look at her and she slops.”said Professor Margaret Livingstone of Harvard University.“It' s because direct vision(视觉)is excellent at picking up detail，but less suited to looking at shadows.Da Vinci painted the smile in shadows.”
However，the actual history of the Mona Lisa is just as mysterious as the smile.Da Vinci himself loved it so much that he always carried it with him，until it was eventually sold to France's King Francis I in 1519.
In 1911，the painting was stolen from the Louvre Museum by a former employee，who took it out of the museum hidden under his coat.He said he planned to return it to Italy.The painting was sent back to France two years later.
During World War II，French men hid the painting in small towns to keep it out of the hands of German forces.
Like many old ladies，the Mona Lisa has some interesting stories to tell.
1．The underlined sentence in the first paragraph means the Mona Lisa________.
A．is losing its value
B．is being damaged after so many years
C．is getting more valuable with years passing
D．will rot away
答案：B 细节理解题。首先，由转折词But判断，本句的意思应和文章前面所说“美貌是永恒的”在意义上相反。后面又介绍说“蒙娜·丽莎”的健康状况随着岁月的流逝而恶化，画的木板变形，因此断定此处的意思是指随着岁月的流逝，名画《蒙娜·丽莎》受到了损坏。
