2. 外语
  3. A. function B. warning C. definition D. replacing E. express F. words G. deeds H. interpret I. limitless J. single K. bo

A. function B. warning C. definition D. replacing E. express F. words G. deeds H. interpret I. limitless J. single K. bo

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问题     A. function B. warning C. definition D. replacing E. express
    F. words G. deeds H. interpret I. limitless J. single
    K. boundless L. general M. ordinary N. distinguishes O. different
    A language is a signaling system which operates with symbolic vocal sounds, and which is used by a group of people for the purpose of communication.
    Let’s look at this【C1】______ in more detail because it is language, more than anything else, that【C2】______ man from the rest of the animal world.
    Other animals, it is true, communicate with one another by means of cries: for example, many birds utter【C3】______ calls at the approach of danger, monkeys utter【C4】______ cries, such as expressions of anger, fear and pleasure. But these various means of communication differ in important ways from human language. For instance, animals’ cries do not【C5】______ thoughts and feelings clearly. This means, basically, that they lack structure. They lack the kind of structure that enables us to divide a human utterance into【C6】______.
    We can change an utterance by【C7】______ one word in it with another: a good illustration of this is a soldier who can say, e.g., "tanks approaching from the north", and who can change one word and say "aircraft approaching from the north" or "tanks approaching from the west"; but a bird has a【C8】______alarm cry, which means "danger! "
    This is why the number of signals that an animal can make is very limited: the great tit is a case in point; it has about twenty different calls, whereas in human language the number of possible utterances is【C9】______. It also explains why animal cries are very【C10】______ in meaning.
【C2】
选项
答案N
解析 本句为It is…that．．．强调句型，句中缺少谓语动词。由于该句的主语为强调的成分language，因此空格处应填入第三人称单数形式的动词，词库中只有distinguishes“区分”符合要求。此外，根据常识也知，语言是区分人类和其他动物的标志，因此选N。
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