Do you feel sad? Happy? Angry? You may think that the way you show these emotions is unique. Well, think again. Even the expression of the most personal feelings can be classified, according to Mind Readingame, a DVD displaying every possible human emotion. It demonstrates 412 distinct ways in which we feel the first visual distionary of the human heart.

　　Attempts to classify expressions began in the mid-1800s, when Darwin divided the emtions into six types-anger, fear, sadness, disgust, surprise and enjoyment. _________(46) Every other feeling was thought to derive from Darwin's small group. More complex expressions of emotions were probably learned and therefore more specific to each culture. But now it is believed that many more facial expressions are shared worldwide. _________(47) The Mind Reading DVD is a systematic visual record of these expressions.

　　The project was conceived by a Cambridge professor as an aid for people with autism (孤獨癥), who have difficulty both reading and expressing emotions. But it quickly became apparent that it had broader uses. Actors and teachers, for example, need to understand a wide range of expressions. The professor and his research team first had to define an "emotion" _________(48) Using this definition, 1,512 emotion terms were identified and discussed. This list was eventually reduced to 412, from"afraid" to "wanting".

　　Once these emotions were defined and classified, a DVD seemed the clearest and most efficient way to display them. In Mind Reading, each expression is acted out by six different actors in three seconds. _________(49) The explanation for this is simple: we may find it difficult to describe emotions using words, but we instantly recognise one when we see it on someone's face. " It was really clear when the actors had got it right," says Cathy Collis, who directed the DVD." Although they were given some direstion," says Ms Collis, " the actors were not told which facial muscles they should move. " _________(50) For example, when someone feel contempt, 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. Ekmen has written out a pattern of facial muscular movements to represent each emotion.

　　A. He said that this expression of feeling is universal and recognizable by anyone from any culture .

　　B. Any other method of showing the 412 emotions whould have been far less effective.

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

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

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

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

　　46.A [解析]"He said that this expression of feeling is universal and recognizable by anyone from any culture."他說這種感情的表達普遍存在，可以在任何人和任何文化中找到。上一句列舉了六種表情，而this正是指以上的感情的表達。

　　47.C [解析]"Research has also been done to find out which area of brain read the emotional expressions."人們做了研究以期發(fā)現(xiàn)大腦的哪個區(qū)域讀取表情。該題考察上下文之間的意義關系。

　　48.F [解析]"We thought of trying to describe each emotion, but it whould have been almost impossible to make clear rules of this."我們試圖描述每種情感，但要搞清楚其中的規(guī)律幾乎是不可能的，這就是為什么教授要進行不同表情的研究和界定。

　　49.B [解析]"Any other method of showing the 412 emotions whould have been far less effective."要展示412種表情，其他任何的方法遠沒有它有效。文章接下來給出了理由。

　　50.D [解析]"These particular muscles are difficult to control, and few people can do it."這些特殊的肌肉很難控制，少數(shù)人才能做到這一點。該句前面講到面部肌肉的控制，因此，選D。