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.
【C15】
选项 A、moved
B、hid
C、revealed
D、adjusted
答案D
解析 该题考查动词词义辨析。moved移动；hid隐藏；revealed揭示；adjusted调整。根据本句主语“实验者”以及后文的宾语“他的头和眼睛”可知，此处表达的意思是实验者将头和眼睛对准某一方向，并且凝视30秒，adjust表示在原来的位置调节某事物的方向或者状态，而move意为将某物进行位置的改变或者移动，adjust符合文意，故选D。
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