课时检测训练6 必修第一册 Unit 5 Languages Around the World-【勤径学升】2025年高考英语一轮总复习课时检测训练（人教版）

课时检测训练6必修第一册 UNIT 5 LANGUAGES AROUND THE WORLD 对应答案P38 I,阅读理解 human beings evolved around 300,000 years ago. (2022·新高考I卷)Human speech contains "The set of speech sounds we use has not more than 2,000 different sounds,from the necessarily remained stable since the appearance of common“m”and“a”to the rare clicks of some human beings,but rather the huge variety of southern African languages.But why are certain speech sounds that we find today is the product of sounds more common than others?A ground- a complex interplay of things like biological change breaking,five-year study shows that diet-related and cultural evolution."said Steven Moran,a changes in human bite led to new speech sounds member of the research team. that are now found in half the world's languages. 1.Which aspect of the human speech sound does More than 30 years ago,the scholar Charles Damian Blasi's research focus on? Hockett noted that speech sounds called A.Its variety. B.Its distribution. labiodentals,such as“f"and“v”,were more C.Its quantity. D.Its development. common in the languages of societies that ate 2.Why was it difficult for ancient human adults to softer foods.Now a team of researchers led by produce labiodentals? Damian Blasi at the University of Zurich, A.They had fewer upper teeth than lower teeth. Switzerland.has found how and why this trend B.They could not open and close their lips arose. easily They discovered that the upper and lower C.Their jaws were not conveniently structured. front teeth of ancient human adults were aligned D.Their lower front teeth were not large (对齐)，making it hard to produce labiodentals, enough. which are formed by touching the lower lip to the :3.What is Paragraph 5 mainly about? upper teeth.Later,our jaws changed to an A.Supporting evidence for the research results. overbite structure(结构)，making it easier to B.Potential application of the research findings. produce such sounds. C.A further explanation of the research methods. The team showed that this