We all know we shouldnt judge p_______（A） based on their looks. Beauty is only skin-deep. But its hard to ignore the way a person looks. Something about attractive people makes us want to watch them. We cant take our eyes off a good-looking actor， actress or model. As such， beauty has power over us. But what is b_______ （1）？

There is no simple answer. Researchers have， however， begun probing what features make an individual attractive to others.

R_______ （2） have found that there may be a practical side to our obsession with beauty and have turned up some answers. Such as symmetry. Faces that we deem attractive tend to be symmetrical. Attractive faces also are average.

In a symmetrical face， the left and right sides look like each other. Theyre not perfect mirror images. But our eyes read faces with similar proportions on both sides as symmetrical. Peoples faces usually only differ subtly in symmetry. S_______ （B） looks normal to us. And we then like it.

Everyones face is slightly a symmetrical， but in different ways. This averageness refers to how similar a face looks to most other faces in a population. Average faces are a mathematical a_______ （C） of most peoples features. And， in g_______ （D）， people find such faces quite attractive.

For example， the distance between the centers of a womans eyes affects whether she is considered beautiful. People find her most attractive when that d_______ （E） is just under half of the width of the face. Just as important is the distance between a womans eyes and mouth. It should be just over one-third the h_______ （F） of her face. Both those distances match the population average， or are close to it.

Believe it or not， symmetry and averageness are the two important f_______（3） that make peoples faces more a_______ （4）.

（A， B， C， D， E， F FOR CROSS， 1， 2， 3， 4 FOR DOWN. The first letters of the absents were given.）

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