（一）TheBilingualBrain回答下列问题。WhenKarlKimimmigratedtotheUnitedStatesfromKoreaa

共享题干题 （一）The Bilingual Brain 回答下列问题。 When Karl Kim immigrated to the United States from Korea as a teenager, he had a hard time learning English. Now he speaks it fluently, and he had a unique opportunity to see how our brains adapt to a second language.As a graduate student, Kim worked in the lab of Joy Hirsch, a neuroscientist in New York. Their work led to an important discovery. They found evidence that children and adults don't use the same parts of the brain when they learn a second language. The researchers used an instrument called an MRI( magnetic resonance imaging) scanner to study the brains of two groups of bilingual people. One group consisted of those who had learned a second language as children. The other consisted of people who, like Kim, learned their second language later in life. People from both groups were placed inside the MRI scanner. This allowed Kim and Hirsch to see which parts of the brain were getting more blood and were more active. They asked people from both groups to think about what they had done the day before, first in one language and then the other. They couldn't speak out loud because any movement would disrupt the scanning. Kim and Hirsch looked specifically at two language centers in the brain - Broca's area, which is believed to control speech production, and Wernicke's area, which is thought to process meaning. Kim and Hirsch found that both groups of people used the same part of Wernicke's area no matter what language they were speaking. But their use of Broca's area was different. People who learned a second language as children used the same region in Broca's area for both their first and second languages. People who learned a second language later in life used a different part of Broca's area for their second language. How does Hirsch explain this difference? Hirsch believes that when languageis first being programmed in young children, their brains may mix the sounds and structures of all languages in the same area. Once that programming is complete, the processing of a new language must be taken over by a different part of the brain. A second possibility is simply that we may acquire languages differently as children than we do as adults. Hirsch thinks that mothers teach a baby to speak by using different methods involving touch, sound, and sight. And that is very different from learning a language in a high school or college class.1.[不定向选择题]It can be inferred from the last paragraph that__________A.students do better in high school than in college B.bilingual children will learn better in college classes C.mothers are good language teachers D.it takes more time for adults to learn a second language 2.[不定向选择题]Kad Kim's study showed that__________A.people learn English and Korean in different ways. B.children and adults use the different parts of the brain to learn a second language C.it is not possible for an adult to speak a second language fluently D.people's brain will not change when they learn a second language

1.参考答案：D
参考解析：根据文章最后一段第一句话A second possibility is simply that we may acquire languages differently as children than we do as adults．第二种可能就是我们在小的时候学习的语言不同于我们成年后学习的语言。以及综合全文的内容考虑，我们可以推测大人学习第二种语言可能更慢。
2.参考答案：B
参考解析：根据文章第一段最后一句话They found evidence that children and adults don’t use the same parts of the brain when they learn a second language．他们找到了证据来证明当儿童和成人在学习第二语言时，他们并不使用大脑的同一部位。因此，儿童和年轻人在学习第二语言的时候使用的是不同的大脑区域。3.[不定向选择题]How did kim and Hirsch study the brains of two groups of bilingual people?A.They interviewed them in English and Korean B.They asked them to speak the same language C.They used an MRI scanner to observe their brain D.They asked them to talk about what they had done the day before

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