必修1 Unit 2 English around the world-【优化探究】2024高考英语一轮复习高考总复习配套课件（人教版 老教材 老高考）

一轮· 英语 * 必备知识 自主梳理 核心考点 互动探究 跟踪检测 巩固提升 课时作业 即时演练 一轮· 英语 * 必备知识 自主梳理 核心考点 互动探究 跟踪检测 巩固提升 课时作业 即时演练 精读真题提素养/主题下的高考拓展运用 (2018·全国Ⅰ卷) Languages have been coming and going for thousands of years，but in recent times there has been less coming and a lot more going.When the world was still populated by hunter­gatherers，small，tightly knit (联系) groups developed their own patterns of speech independent of each other.Some language experts believe that 10,000 years ago，when the world had just five to ten million people，they spoke perhaps 12,000 languages between them. 一轮· 英语 * 必备知识 自主梳理 核心考点 互动探究 跟踪检测 巩固提升 课时作业 即时演练 Soon afterwards，many of those people started settling down to become farmers，and their languages too became more settled and fewer in number.In recent centuries，trade，industrialisation，the development of the nation­state and the spread of universal compulsory education，especially globalisation and better communications in the past few decades，all have caused many languages to disappear，and _________ languages such as English，Spanish and Chinese are increasingly taking over. dominant 一轮· 英语 * 必备知识 自主梳理 核心考点 互动探究 跟踪检测 巩固提升 课时作业 即时演练 At present，the world has about 6,800 languages.The distribution of these languages is hugely uneven.The general rule is that mild zones have relatively few languages，often spoken by many people，while hot，wet zones have lots，often spoken by small numbers.Europe has only around 200 languages；the Americas about 1,000；Africa 2,400；and Asia and the Pacific perhaps 3,200，of which Papua New Guinea alone accounts for well over 800.The median number (中位数) of speakers is a mere 6,000，which means that half the world's languages are spoken by fewer people than that. 一轮· 英语 * 必备知识 自主梳理 核心考点 互动探究 跟踪检测 巩固提升 课时作业 即时演练 Already well over 400 of the total of 6,800 languages are close to extinction (消亡)，with only a few elderly speakers left.Pick，at random，Busuu in Cameroon (eight remaining speakers)，Chiapaneco in Mexico (150)，Lipan