2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)物理试题

2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)物理试题于2025-12-24发布，目前已经汇总了2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)物理试题的各科答案和试卷，更多试卷答案请关注本网站。

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2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)历史试题

2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)历史试题

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.
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.
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 a complex interplay of things like biological change and cultural evolution,” said Steven Moran,a member of the research team.
8.Which aspect of the human speech sound does Damián Blasi's research focus on
Its variety. Its distribution.

4、2026届河南省高三年级TOP二十名校调研 二(26-X-308C)历史试题

1、2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)历史试题

4、2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)语文试题

3、2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)生物试题

4、2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)英语试题

【答案】A
【知识点】牛顿第二定律；电场线；电势能；电势
【解析】【解答】A．两点电荷连线中垂线上，电场强度大小可能先增大后减小、一直增大或一直减小。由，加速度可能先增大后减小，故A正确；
B． 图像斜率表示加速度，若加速度先增大后减小，斜率应先增大后减小，而图中斜率变化不符合，故B错误；
C．物块从到，电场力做正功，电势能应一直减小，不会先增后减，故C错误；
D．离正电荷越近电势越高，从到电势应逐渐升高，而非降低，故D错误。
故答案为：A。

2026届河南省高三年级TOP二十名校调研考试二(26-X-308C)化学答案