Paragraph Nine 　One world-famous psychologist proved through his

Paragraph Nine 　One world-famous psychologist proved through his experiments that ananimal rewarded for good behavior will learn much more rapidly and retain what itlearns far more effectively than an animal punished for bad behavior. Later studieshave shown that the same applies to humans. 44. A s_______nature of animals and humans.
【正确答案】：similar
【题目解析】：本段揭示了人与动物在激励下的行为模式具有相似之处。一位世界著名的心理学家通过他的实验证明，一个因良好行为而受到奖励的动物会比一只因坏行为而受到惩罚的动物更有效地学习，并能更有效地记住学习的内容。后来的研究表明，同样的情况也适用于人类。空白处应该填写similar（相似的）。