ethnic3 competition， can be interpreted as also including hostility4 toward such ethnic groups as the
Chinese in California and the Jewsin medieval Europe.
11. Such variations in size， shape，chemistry， conduction speed， excitation threshold， and the like as had been demonstrated in nerve cells remained negligible in significance for any
possible correlation5 with the manifold dimensions of mental experience.（5）
难免种类：复杂修饰
译文：像这类已经被在神经细胞中证明的在大小、形状、化学过程、产生的速度、开心阈值及其类似的方面上所发生变化，当他们被用来与大脑的体验以可能的方法联系起来的时候，他们在重要程度上仍然是微不足道的。
讲解：即便是初练难免的人其实也很了解such thing as something如此的语言方法，可是当中间的小东西thing居然变成了一个长达十二个单词的大东西的时候，实在让人搞不清后面的as及其后的something 到底为哪方神圣。再加上以such as 为中心的长主语距离系动词 remain太远，更增加了本句的困难程度。请读者反复阅读，直到读出如此的感觉：顺序阅读原文时，原文好像就是几大块，就仿佛是 such things as a remain negligible in a certain sense.
意群练习：Such variations in size, shape, chemistry, conduction speed, excitation threshold, and the like as
had been deomnstrated in nerve cells remained negligible in significance for any possible correlation
with the manifld dimensions of mental experience.
12. It was possible to demonstrate by other methods refined structural6 differences among neuron types ; however , proof was lacking that the quality of the impulse or its condition was influenced by these differences , which seemed instead to influence the developmental patterning of the neural7 circuits . 大概通过其他办法来证明神经元类型间的细微的结构差异；可是，如此的证据是缺少的，即神经冲动的性质或者状况是受这类差异所影响的，而这类差异看着却可以影响神经互联网的发育模式。
难免种类：复杂修饰、倒装
讲解：与不少人的印象相反，lack从来就不可以作形容词，它只有动词或名词的词性。其形容词的形式是lacking,意思是缺少的、不足的。
本句的在however 之前和之后的两个分句，是两个倒装结构，前一个是小倒装，正常语序是： to demonstrate refined structural differences among neuron types by other methods: however后面是个大倒装，lacking之后的that引导的同位语人名是修饰主语proof的，但由于它太长，所以为了防止头重脚轻，被放到 lacking之后，正常的语序应该是proof that the quality of was lacking
意群练习：It was possible to demonstrate by other methods refined structural differences among neuron types;however, proof was lacking that the quality of the impulse or its condition was influencedx by these differences, which seemed instead to influencthe developmental patterning of the neural circuits.
