Gold’s team compared task­switching speeds for younger and older adults，knowing they would find slower speeds in the older population because of previous studies.However，they found that older adults who spoke two languages were able to switch mental activities faster than those didn’t.The study only looked at lifelong bilinguals(会说两种语言的人) defined in study as people speaking a second language daily since they were at least 10 years old.

　　Gold and his team asked 30 people，either bilingual or monolingual(只懂一种语言的人)，to have a series of tests.They found that bilingual people were not only able to switch tasks faster—they had different brain activity than their monolingual peers.

　　Kristina called bilingualism “a beautiful natural experiment”，because people grow up speaking two languages，and studies have shown that they get certain cognitive benefits from switching between languages and determining which to respond with based on what’s going on around them.

　　Gold said he grew up in Montreal，where he spoke French at school and English at home，prompting relatives to question whether his French language immersion would somehow hinder his ability to learn English.

　　“Until very recently，learning a second language in childhood was thought of as dangerous，” he said.“Actually，it’s beneficial.”

　　1．What’s the main idea of the passage?

【（豫皖京闽粤通用）2017届高考英语北师大版一轮复习配套练习：book7 Unit 19《language》（含解析）】相关文章：

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