you can't say for certain that their eyebrows always go down.

　　Someone who has tried to establish such rules is the American, Professor Paul Ekman, who has built a database of how the face moves for every emotion. The face can make 43 distinct muscle movements called"action units". These can be combined into more than 10, 000 visible facial shapes. Ekman has written out a pattem of facial muscular movements to represent each emotion.

　　A. He said that the expression of these feelings was universal and recognizable by anyone, from any culture.

　　B. Any other method of showing all the 412 emotions, such as words, would have been far less effective.

　　C. Research has also been done to find out which areas of the brain read emotional expressions.

　　D. They decided that it was a mental state that could be preceded by "I feel" or "he looks" or "she sounds".

　　E. We thought of trying to describe each emotion, but it would have been almost impossible to make clear rules for this.

　　F. These particular muscles are difficult to control, and few people can do it.

　　第6部分：完形填空（第51~65题，每题1分，共15分）

　　下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。

　　Skin Cancer

　　Melanoma (黑素瘤), the deadliest kind of skin cancer is now the most common cancer in________(51) British women, the country's leading cancer organization said Wednesday. Skin cancer has_______(52) cervical (子宫颈的) cancer as the top cancer striking women in their 20s, according to the latest data from Cancer Research United Kingdom.

　　The trend is particularly _______(53) since younger people are not generally those most susceptible(易患的)to melanoma. Rates of skin cancer are _______(54)highest in people over age75.

　　But experts worry that increasing numbers of younger people being diagnosed with skin cancer could be the _______(55) of a dangerous trend. Women in their 20s make _______(56) a small percentage of all patients diagnos