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職稱英語理工類C級補(bǔ)全短文練習(xí)及答案
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'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. 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'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. 3
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. 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 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. 5 A But their use of Broca's area was different.
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.FBACE
練習(xí)：
A But their use of Broca's area was different.
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.
答案與題解：
1.F根據(jù)本空的后一句：They found evidence that children and adults don’t use the same parts of the brain when they learn a second language.其中they found evidence與discovery相互應(yīng)。
2.B 依據(jù)本空的后一句The other consisted of people who，like Kim，learned their second language later in life.one…the other是一固定搭配，用來比較同類事物。
3.A整段講的是Kim他們對大腦的兩個(gè)語言中心的分析，得出兩組被試都用Wernicke’s area中同一地帶，緊接著該談被試們使用Broca's area的情況。
4.C本段的開頭談到孩子學(xué)習(xí)第_和第二語言都用Broca’s area相同的地帶;而成人學(xué)習(xí)第二語言時(shí)使用Broca’s area不同的地帶。后面都是Hirsch對這一現(xiàn)象的解釋;He believes….根據(jù)上下文C是恰當(dāng)?shù)摹?/p>
5.E該句是全文的結(jié)束語。本段前兩句都講成年人與小孩習(xí)得語言的不同，Hirsch認(rèn)為，母親教小孩說話用不同于成人的方法，比如用觸摸、聲音和情景。Different是一關(guān)鍵詞，所以，我們在中學(xué)和大學(xué)課堂學(xué)語言的方法和母親教孩予的方法是不同的。
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