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question 11 to 15 are based on the following passage: in the same way that a child must be able to move his arms and legs before he can learn to walk, the child must physiologically be capable of producing and experiencing particular emotions before these emotions can be modified through learning. psychologists have found that there are two basic processes by which learning takes place. one kind of learning is called classical conditioning. this occurs when one event or stimulus is consistently paired with, or followed by, a reward or punishment, it is through classical conditioning that a child learns to associate his mothers face and voice with happiness and love, for he learns that this person provides food and comfort. negative emotions are learned in a similar fashion. 注：logically 生理的`，mental / phycological 心理的 修改、改变；pair with 伴随 is ...that 强调介词状语结构 ●分类型文章：1.分为几类就是文章主题 2.抓住各类主体词/基本特征词（通常为动词） 3.多余段落通常例证某一类 the second kind of learning is called operant conditioning. this occurs when an inspanidual learns to do things that produce rewards in his environment and learns not to do things that produce punis