2022年高考英语真题阅读理解CD篇二次开发学案-2024届高三英语一轮复习

2022新高考1卷D篇语法填空 Human speech contains more than 2,000 different sounds, from the common “m” and “a” 1._____ 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 2._____________ are now found in half the world’s languages. More than 30 years ago, the scholar Charles Hockett noted that speech sounds called labiodentals(唇齿音), such as “f” and “v”, were more common in the languages of societies that ate softer foods. Now a team of researchers 3.______(lead) by Damián Blasi at the University of Zurich, Switzerland, has found how and why this trend 4.__________(arise). They discovered that the upper and lower front teeth of ancient human adults were aligned (对齐), 5.__________(make) it hard to produce labiodentals, which 6._______________(form) by touching the lower lip to the upper teeth. Later, our jaws changed to an overbite structure, making it easier 7._______________(produce) such sounds. The team showed that this change in bite was connected 8._______ 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 9.______________(remarkable) during the last few thousand years. These sounds are still not found in the languages of many hunter-gatherer people today. 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 10.________________(necessary) remained stable since the appearance of human beings, but rather the huge 11.____________(various) of speech sounds that we find today is the product of a complex int