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					The US has already lost more than a third of the native languages that existed before European colonisation, and the remaining 192 are classed by UNESCO as ranging between unsafe and extinct. 出自-2016年6月听力原文
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					Quite often, educators tell families of children who are learning English as a second language to speak only English, and not their native language, at home. 出自-2013年12月阅读原文
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					Moreover, the underlying message is that the family's native language is not important or valued 出自-2013年12月阅读原文
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					Native low-skilled workers suffer most from the competition of foreign labor. 出自-2011年6月阅读原文
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					Why do native low-skilled workers suffer most from illegal immigration 出自-2011年6月阅读原文
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					What is the chief concern of native high-skilled, better-educated employees about the inflow of immigrants? 出自-2011年6月阅读原文
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					The graduation rates for blacks, Latinos, and Native Americans lag far behind the graduation rates for whites and Asians. 出自-2011年6月阅读原文
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					It has brought English into homes and pushed out traditional storytelling and family time together, accelerating the extinction of native languages. 2016年6月六级真题(第一套)听力 Section B
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					Native plants are coming back, and the fox once again bound about carefree. 2018年12月六级真题(第三套)阅读 Section A
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					The grapes are originally native to Croatia, but this winery is in eastern Italy. 2018年6月六级真题(第二套)听力 Section A
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					within a few generations, most had forgotten their native tongues. 2016年6月六级真题(第一套)听力 Section B