2. 外语
  3. Language is one of the defining characters of our species, but we know virtually nothing about where it came from. "We have a lo

Language is one of the defining characters of our species, but we know virtually nothing about where it came from. "We have a lo

admin2013-09-16  21
问题     Language is one of the defining characters of our species, but we know virtually nothing about where it came from. "We have a lot of【C1】______, but we don’t have a lot of data, " admits Gary Marcus at New York University, U. S.
    The biological basis of【C2】______people speak, listen and comprehend—and how all of this mental equipment evolved—is【C3】______mysterious. Researchers can study animals to gain insights【C4】______many psychological abilities, but this is not possible with language as no animal【C5】______systems are anywhere near as【C6】______as ours.
    "【C7】______we know it’s【C8】______to humans and it evolved quickly, " says Marcus. We developed the skill after we split from our last common ancestor seven million years ago. 【C9】______he says, language probably【C10】______as recently as the last few hundred thousand years.
    It has been difficult to【C11】______data, but developmental studies could provide new【C12】______, he believes. So-called knockout studies, where mice are genetically modified to lack certain genes, have helped tease out the【C13】______of certain mental abilities and many genetic disorders. Though such experiments are not ethically【C14】______in humans, detailed observational studies on people with naturally-occurring genetic mutations(基因突变)related to language, could provide【C15】______data, says Marcus.
    A systematic collection of such studies would help us【C16】______which parts of language share an origin【C17】______other mental abilities and which parts have evolved【C18】______. For example, sufferers of William’s syndrome have difficulty【C19】______the world and understanding why things happen—yet they have near-normal linguistic abilities. On the other hand, autistic people have【C20】______understanding what other people have on their minds and this can also affect linguistic abilities.  
【C7】
选项 A、In case
B、In short
C、In the beginning
D、In consequence
答案B
解析 逻辑衔接题。此处意为“简而言之，我们清楚语言是人类独有的”，故选in short，意为“简而言之”。
转载请注明原文地址:https://kaotiyun.com/show/Ra97777K
0

大学英语六级

相关试题推荐
随机试题
最新回复(0)