62) The behavioral sciences have been slow to change partly because the explanatory items often seem to be directly observed and partly because other kinds of explanations have been hard to find.　　句子分析：　　第一、句子可以拆分为三段：The behavioral sciences have been slow to change/partly because the explanatory items often seem to be directly observed and/partly because other kinds of explanations have been hard to find.　　第二、句子的主干结构是：主句+两个并列关系的原因状语从句之所以……，部分是因为……，部分是因为……　　第三、词的处理：　　the explanatory items 用以解释的要素(内容，项目)　　other kinds of explanations 其他解释方式完整的译文：　　62)行为科学之所以发展缓慢，部分原因是用来解释行为的依据似乎往往是直接观察到的，部分原因是其他的解释方式一直难以找到。　

　63) The role of natural selection in evolution was formulated only a little more than a hundred years ago, and the selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be recognized and studied.　　句子分析：　　第一、句子可以拆分为四段：The role of natural selection in evolution/was formulated only a little more than a hundred years ago, /and the selective role of the environment in shaping and maintaining the behavior of the individual/is only beginning to be recognized and studied.　　第二、句子的主干结构是两个表示时间对比的并列句The role of...was formulated only..., and the selective role of...is only beginning to...每一个句子的主语都比较长，都是名词+介词短语结构。　　第三、词的处理：　　in evolution 在演化中　　formulated 阐述；表述；解释；论证　　shaping 形成(造就)　　maintaining 保持，维护　　recognized 认可，承认　　完整的译文：　　63)自然选择在进化中的作用仅在一百多年前才得以阐明，而环境在塑造和保持个体行为时的选择作用则刚刚开始被认识和研究。　　

64) They are the possessions of the autonomous (self-governing) man of traditional theory, and they're essential to practices in which a person is held responsible for his conduct and given credit for his achievements.　　句子分析：　　第一、句子可以拆分为三段：They are the possessions of the autonomous (self-governing) man of traditional theory, /and they're essential to practices/in which a person is held responsible for his conduct and given credit for his achievements.　　第二、句子的结构：　　1)主干结构是两个并列句They are the possessions of ... and they're essential to...　　2)in which...是practices的定语从句。　　第三、词的处理：　　They 它们(自由与尊严)，代词做主语　　possessions 所有物　　autonomous (self-governing) 自主行为的；自我管理的；自我约束的　　practices 实践活动　　is held responsible for 对……负责　　given credit for 认可；赞誉；给予肯定　　完整的译文：　　64)自由和尊严(它们)是传统理论定义的自主人所拥有的，是要求一个人对自己的行为负责并因其业绩而给予肯定的必不可少的前提。