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听力文稿 ( Transcript )
I'd never held a fossil skull in my hands, and I was by no means an expert on teeth. But it worked pretty well, and it transmitted to me a sense of excitement which I'll remember this instance.
I, at over forty, having spent a lifetime on doing abstract mathematics about the shapes of things, suddenly saw my knowledge reach back two million years and shine a searchlight into the history of man. That was phenomenal. And from that moment, I was totally committed to thinking about what makes man what he is, in the scientific work that I have done since then, the literature that I've written and in these programs.
I don't know how the Taung baby began life, but to me, it still remains the primordial infant from which the whole adventure of man began. The human baby, the human-being is a mosaic of animal and angel. For example, the reflex that makes the baby kick is already there in the womb, every mother knows that. And it's there in all vertebrates, here, at eleven month, it urges the baby to crawl, that brings in new movements. And they then lay down and consolidate the pathways in the brain, the cerebellum, that will form a whole repertoire of subtle complex movements and make them second nature dream. Now the cerebellum is in control, all that the conscious mind has to do is to issue the command and at fourteen month the command is stand.
primordial adj. Being or happening first in sequence of time; original. 原始的，最早的，在时间顺序上最早形成或发生的；原始的
mosaicn. An individual exhibiting mosaicism. 嵌合体, 一种个体的展示性镶嵌现象
vertebrate n. A member of the subphylum Vertebrata, a primary division of the phylum Chordata that includes the fishes, amphibians, reptiles, birds, and mammals, all of which are characterized by a segmented spinal column and a distinct, well-differentiated head.脊椎动物
crawl vi 爬；爬行 ex: The baby crawled towards his mother. 婴孩向他妈妈爬去。
consolidate vt. To unite into one system or whole; combine: 合并,把…联合起来或统一
cerebellum n. pl. cerebellums; or cerebella, 小脑
repertoire n. The range or number of skills, aptitudes, or special accomplishments of a particular person or group. 全部本领某人或某团体的一系列技艺、才能或特殊的成就
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