必修第1册 UNIT 5 LANGUAGES AROUND THE WORLD-【创新教程】2025年高考英语总复习大一轮课时作业word（人教版）

UNIT 5　LANGUAGES AROUND THE WORLD Ⅰ.阅读 主题：人与社会 体裁：说明文 话题：气候危机加剧了语言的消失 Every 40 days a language dies.This “catastrophic” loss is being intensified by the climate crisis, according to linguists.If nothing is done, conservative estimates suggest half of all the 7,000 languages currently spoken will be extinct by the end of the century. Speakers of minority languages have experienced a long history of persecution (迫害), with the result that by the 1920s half of all indigenous (土著的) languages in Australia, the US, South Africa and Argentina were extinct.The climate crisis is now considered the “final_nail_in_the_coffin” for many indigenous languages and the knowledge they represent. “Languages are already endangered，” says Anastasia Richl, director of the Strathy language unit at Queen's University in Kingston, Ontario.Huge factors are globalization and migration, as communities move to regions where their language is not spoken or valued, according to Richl.“It seems particularly cruel, ” she says，“that most of the world's languages are in parts of the world that are growing unpleasant to people.” Vanuatu, a South Pacific island nation measuring 12, 189 km2, has 110 languages, the highest density (密度) of languages on the planet.It is also one of the countries most at risk of sea level rise.“Many small language communities are on islands and coastlines easily subject to hurricanes and sea level rise，” she says.Others live on lands where rising temperature threatens traditional farming and fishing practices, leading to migration. In response to the crisis, the UN launched the International Decade of Indigenous Languages in 2022.Promoting and conserving languages of indigenous communities is “not only important for them, but for all humanity, ” said Csaba Korosi, the UN general assembly president, urging countries to allow access to education in indigenous languages. 1．What does the underlined phrase “final nail in the coffin” in Paragraph 2 mean? A．The last straw. B．