2. 外语
  3. Humans like to regard themselves as exceptional. Many philosophers believe humans are the only【C1】______which understands that o

Humans like to regard themselves as exceptional. Many philosophers believe humans are the only【C1】______which understands that o

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问题     Humans like to regard themselves as exceptional. Many philosophers believe humans are the only【C1】______which understands that others have their own personal thoughts. That understanding is known in the【C2】______as having a " theory of mind, " and it is considered the【C3】______to such cherished human【C4】______as sympathy and deception.
    Biologists have learned to treat such【C5】______with caution. Bernd Heinrich and Thomas Bugn-yar describe an experiment they have carried out【C6】______ravens.
    【C7】______to gaze is reckoned to be a good【C8】______of the development of theory of mind in human children.【C9】______about 18 months, most children are able to follow the gaze of another person , and【C10】______things about the gazer from it. Failure to【C11】______this trick is an early symptom of autism, a syndrome whose main underlying feature is a(n) 【C12】______to understand that other people have【C13】______too.
    To【C14】______whether ravens could follow gaze, Dr Heinrich used six six-month-old hand-reared ravens. The birds were set, one at a time, on a perch on one side of a room divided by a barrier. An experimenter in front of the barrier【C15】______his head and eyes in a particular【C16】______and gazed for 10 seconds before looking【C17】______. Dr Heinrich found that all the birds were able to follow the gaze of the experimenters, even【C18】______the barrier. In the【C19】______case, the curious birds either jumped down from the perch and walked around the barrier to have a【C20】______or leapt on top of it and peered over.
【C20】
选项 A、look
B、rest
C、try
D、taste
答案A
解析 该题考查名词词义辨析。look看；rest休息；try尝试；taste品尝。根据前文“所有的渡鸦都能够追随实验者的目光，有些好奇的渡鸦甚至能越过障碍物”以及后文“跳上障碍物，并从上面俯视”可知，渡鸦跳下木杆或走到障碍物周围是为了看到实验者的目光所指向的方向，have a look意为“看一眼”，故选A。
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