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A new study of the brain is helping scientists better understand how humans process language. One of the patients is a woman wit

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问题     A new study of the brain is helping scientists better understand how humans process language. One of the patients is a woman with epilepsy(羊癫风). Doctors are【C1】______Denise Harris to see if she is a good【C2】______for an operation that could stop her seizures. They are monitoring her through wire electrodes【C3】______in her brain.
    But【C4】______she is in the hospital, she is also helping scientists understand【C5】______the brain works with language. The study【C6】______a part of the frontal lobe called Broca’s area. The electrode implants have shown that the area very quickly【C7】______three different language functions. Eric Halgren, one of the main investigators, says they found different【C8】______doing, at different times, different processes all【C9】______a centimeter. The first function deals with【C10】______a word. The second deals with understanding the word’s meaning within a sentence.【C11】______the third lets us speak the word.
    Ned Sahin, a researcher, says scientists【C12】______for some time that traditional explanations for how parts of the brain work need to be【C13】______. One such belief is that there is a【C14】______of language tasks between two very different parts of the brain. One is Broca’s area【C15】______the front. The other is Wernicke’s area【C16】______back in the brain. The belief is that Broca’s area is【C17】______speaking and that Wernicke’s area is responsible for comprehending.【C18】______the new study shows that Broca’s area is【C19】______both speaking and comprehension. He says this shows how parts of the brain【C20】______more than one task.
【C12】
选项 A、have known
B、knew
C、know
D、will know
答案A
解析 语法题。“for some time”属于完成时态标志，因此此题宜采用现在完成时态。
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