xx职称英语补全短文【2018年职称英语卫生类补全短文模
拟习题及答案（4）】
The Bilingual Brain
When Karl Kim immigrated to the United States from Korea s 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. ____1____ They found evidence that children and adults don%use the same parts of the brain when they learn a second language.
The researchers used an instrument called an MRI（ magic resonance imaging） scanner to study the brains of two groups of bilingual people. ____2____ . 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\speak out loud because any movement would disrupt the scanning.
Kim and Hirsch looked specifically at two language centers in the brain - Broca\speech production,and Wernicke\process meaning. Kim and Hirsch found that both groups of people used the same part of Wernicke\they were speaking. ____3____
People who learned a second language as children used the same region in Broca\languages. People who learned a second language later in life used a different part of Broca\area for their second language. ____4____ Hirsch believes that when language is 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 plete,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. ____5____ 练习：
A But their use of Broca\
B One group consisted of those who had learned a second language as children.
C How does Hirsch explain this difference？
D We use special parts of the brain for language learning.
E And that is very different from learning a language in a high school or college class.
F Their work led to an important discovery.
答案与题解：
xx职称英语补全短文【2018年职称英语卫生类补全短文模拟习题及答案(4)】
