试题题干
The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.
One world-famous psychologist proved through his experiments that an animal rewarded for good behavior will learn much more rapidly and retain what it learns far more effectively than an animal punished for bad behavior. Later studies have shown that the same applies to humans.
A （） nature of animals and humans.
参考答案
正确答案：
试题解析
形容词修饰名词，nature是名词，所以需要填形容词。本段主要讲述的是动物和人相似的特性。一位世界著名的心理学家通过实验证实，与表现不好受到惩罚的动物相比，被奖励表现好的动物会学得更快，并且对所学的记得更加有效。之后的研究显示人类也同样适用此发现。similar相似的。