2. 外语
  3. A facial expression results from one or more motions or positions of the muscles of the face. These movements【C1】______ the emot

A facial expression results from one or more motions or positions of the muscles of the face. These movements【C1】______ the emot

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问题     A facial expression results from one or more motions or positions of the muscles of the face. These movements【C1】______ the emotional state of the individual to observers. Facial expressions are a form of nonverbal communication. They are a【C2】______ means of expressing social information among humans, but also occur【C3】______most other mammals and some other animal species. Facial expressions and their significance in the【C4】______ can, to some extent, vary between cultures. People’s expressions are often shaped by artists.
Through this method, one’s spirit can be showed【C5】______.
    Humans can【C6】______a facial expression as a voluntary action. However, because expressions are closely【C7】______ to emotion, they are more often involuntary. It can be nearly impossible to avoid expressions for certain emotions, even when it would be strongly【C8】______to do so: a person who is trying to avoid【C9】______ to an individual he or she finds highly unattractive might【C10】______ show a brief expression of disgust before being able to reassume a【C11】______ expression. The close link between emotion and expression can also work in the other direction.【C12】______some researchers have observed in some cases, voluntarily assuming an expression can actually cause the associated emotion.
    Some expressions can be accurately【C13】______ even between members of different species—anger and extreme contentment【C14】______ the primary examples. Others, however, are difficult to understand even in familiar individuals. For instance, disgust and fear can be tough to tell【C15】______.
    Because faces have only a limited range of movement, expressions【C16】______fairly minuscule differences in the proportion and relative position of facial features, and reading them requires considerable【C17】______. Some faces are often【C18】______ read as expressing some emotion, even when they are neutral, because their proportions naturally【C19】______ those another face would【C20】______assume when emoting.
【C14】
选项 A、be
B、is
C、to be
D、being
答案D
解析 独立主格题。句意同上。此处考查be动词的现在分词being在独立主格结构里的运用。独立主格结构可作状语，表示时间、条件、原因、伴随等情况。这时如果分词逻辑上的主语和句子主语不一致，则可以在分词前面加上名词或代词，使它有自己的主语，这就构成了独立主格结构。例如：so manymembers being absent，the meeting had to be put off．(由于如此多的成员缺席，所以会议推迟。)
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