2. 外语
  3. Some people are better at remembering things than others. Aunt Ida might recall in【S1】______detail what she ate at the Bluebird

Some people are better at remembering things than others. Aunt Ida might recall in【S1】______detail what she ate at the Bluebird

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问题     Some people are better at remembering things than others. Aunt Ida might recall in【S1】______detail what she ate at the Bluebird Restaurant during that【S2】______to Maine in 1978. Cousin Freddie, on the other hand, might not remember what he had for dinner last night.
    The difference may be partly due to a common gene【S3】______that can influence our ability to recall past events.
    Researchers have used state-of-the-art imaging techniques to【S4】______differences in brain activity among individuals with different【S5】______of a gene important in nerve cell formation. They find that variations in a gene called brain-derived neurotrophic factor (BDNF) can determine whether or not a person is good at【S6】______past events.
    "This is a very important study," says Michael I. , Posner of the University of Oregon in Eugene. "It【S7】______a new way of looking at how genes shape the【S8】______networks in the brain. We can see【S9】______differences, and we want to know why these occur. This is about to become a very big field."
    The research is part of a larger effort to understand how genes affect the neural circuits in the brain that control complex behaviors. The technique could also lead to new ways to【S10】______, treat, and prevent many neurological diseases, such as Alzheimer’s and schizophrenia.

A) authentic          B) represents           C) vacation           D) conclude
E) diagnose           F) describe             G) indicated          H) remembering
I) versions           J) behavioral           K) probe              L) vivid
M) neural             N) variation            O) vocation
【S3】
选项
答案N
解析 记性好坏部分原因在于影响我们回忆过去事情的能力的一种基因变化。故选N)。
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大学英语四级

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