D. scene

　　14. (2016·沈阳模拟)—Did you know any French before you arrived in Washington?

　　—Never　it, actually.

　　A. had I learned B. have I learned

　　C. I learned

　　D. was I learning

　　15. I don’t know how long　will take the workers to build the bridge.

　　A. it B. that

　　C. this

　　D. one

　　Ⅱ. 阅读理解

　　The mystery of Leonardo da Vinci’s famous Mona Lisa painting has been cracked with the help of emotion-recognition software by scientists recently.

　　According to the findings which will be published in the New Scientist, Mona Lisa’s exact emotions were 83 percent happy, 9 percent disgusted, 6 percent fearful, and 2 percent angry.

　　Dr Nicu Sebe, a professor at the University of Amsterdam in the Netherlands, used emotion-recognition software to come up with the exact analysis of Mona Lisa’s emotional state. The software rated features such as the curvature(曲度)of the lips and crinkles around the eyes.

　　The program draws on a database of young female faces to get an average “neutral” expression.

　　The software uses this average expression as the standard for comparisons. Other applications of emotion-recognition software might be to detect terror suspects on the basis of their emotions as well as their physical characteristics.

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