Yellow or pink flowers？ The green or blue sweater？ We make decisions about color all the t

ime. Now, scientists are starting to figure【C1】______ why we like the colors we do. It is our experiences that determine which colors we prefer,【C2】______a new study, which was the first to【C3】______ test the long-suspected idea that people like the colors of the things they like. In their【C4】______ to understand why people like certain colors, scientists have【C5】______on evolution. The main theory is that we like colors that are【C6】______ to things that are healthy and promote survival. A blue sky, for example, indicates calm weather, which【C7】______ explain why blue tends to be a (n)【C8】______ color across cultures. Dark yellows and oranges,【C9】______, invoke urine, vomit and rotting food.【C10】______expected, there is usually a drop in preference【C11】______ these colors in studies around the world. 【C12】______ those general trends, there are wide-ranging differences among individuals about which colors they like. As part of a【C13】______of experiments, the researchers showed slide shows of colored objects to a group of【C14】______. They found that people preferred whichever color had been linked to the【C15】______ images they saw, whether red or green. In another【C16】______ study, the researchers found that Berkeley students who【C17】______ highest in school spirit had the strongest preferences for blue and gold, their schools colors, and the most【C18】______ for red and white, the colors of their rival Stanford. Spirited Stanford students showed the opposite【C19】______, suggesting that social connections can influence which colors we like at different times in our lives. People are generally interested in the subtle differences between people and what has【C20】______ that. Color provides a tool to understand why we like some things more than others.

【C1】

A．away

B．up

C．out

D．around