专题04 阅读理解（人类语音变化） -备战2023年高考英语母题题源解密（新高考）

专题04 人类语音变化 阅读理解 备战2023年高考英语母题题源解密（新高考） CONTENT 1.母题呈现 2.母题解密 文章分析 命题规律 备考建议 2 备战2023年高考英语母题题源解密 01 母题呈现 Human speech contains more than 2,000 different sounds, from the common "m" and "a" to the rare clicks of some southern African languages. But why are certain sounds more common than others? A ground-breaking, five-year study shows that diet-related changes in human bite led to new speech sounds that are now found in half the world's languages. More than 30 years ago, the scholar Charles Hockett noted that speech sounds called labiodentals, such as "f" and "v", were more common in the languages of societies that ate softer foods. Now a team of researchers led by Damián Blasi at the University of Zurich, Switzerland, has found how and why this trend arose. 2023年普通高等学校招生全国统一考试（新高考Ⅰ卷） They discovered that the upper and lower front teeth of ancient human adults were aligned（对齐）, making it hard to produce labiodentals, which are formed by touching the lower lip to the upper teeth. Later, our jaws changed to an overbite structure（结构）, making it easier to produce such sounds. The team showed that this change in bite was connected with the development of agriculture in the Neolithic period. Food became easier to chew at this point. The jawbone didn't have to do as much work and so didn't grow to be so large. Analyses of a language database also confirmed that there was a global change in the sound of world languages after the Neolithic age, with the use of "f" and "v" increasing remarkably during the last few thousand years. These sounds are still not found in the languages of many hunter-gatherer people today. 2023年普通高等学校招生全国统一考试（新高考Ⅰ卷） This research overturns the popular view that all human speech sounds were present when human beings evolved around 300,000 years ago. "The set of speech sounds we use has not necessarily remained stable since the appearance of human beings, but rather the huge variety of speech sounds that we find today is the product of