1.But because Colonial Williamsburg offers not a segment of the history of a fine art, but a model of an ongoing community, it is intelligible and interesting to nearly everybody.
[句子主干] Williamsburg offers not a segment„.. but a model„
[语法难点] 主要语法结构是not---but---，难点在于后面的限定成分，segment of the history of a fine art，model of an ongoing community。
[句子翻译] 由于殖民时代的威廉斯堡呈现的不是极品艺术的某一片段，而是呈现一个正在进行的艺术模型，它对每个人来说几乎都是可以理解和有趣的。
2.(1)That such radical adaptations can occur demands a view of the brain as dynamic and active rather than programmed and static, (2)a supremely efficient adaptive system geared for evolution and change, (3)ceaselessly adapting to the needs of the organism----its need, above all, to construct a coherent self and world, whatever defects or disorders of brain function befall it.
[句子主干] that„demands a view of„.rather than„..，
[语法难点] 将此句话分为三部分，第一部分首先是That引导的主语从句，rather than连接两个对比：dynamic and active和programmed and static，第二部分以及第三部分都是对第一部分“radical adaptations”的补充和说明
[句子翻译] 剧烈的适应可能会发生，这要求我们把大脑看作是动态的，活跃的，以及无比有效的适应性系统，这个系统适应变化和发展，永无止境地调整自己以适应生物体的需要(它首要的需要是构建和谐的自身与环境，无论什么大脑缺陷和疾病降临在它头上)，而不是把它看作是预先编制好的，静态的系统。
3.This sense of the brain’s remarkable plasticity , its capacity for the most striking adaptations, not the least in the special(and often desperate) circumstances of neural or sensory mishap , has come to dominate my own perception of my patients and their lives.
[句子主干] This sense of plasticity„. has come to dominate my„.
[语法难点] 在句子的主干之间插入很长的限定成分，its capacity for the most striking adaptations, not the least in the special(and often desperate) circumstances of neural or sensory mishap都是对the brain’s remarkable plasticity的补充说明。
[句子翻译] 大脑有非同寻常的可塑性，它不仅仅在特定的(常常令人绝望的)神经或者感觉灾难下有惊人的调整能力，这一认识支配了我对病人和他们生活的看法。
