河北省2025-2026学年第一学期中段调研检测卷七年级英语（冀教版）答案

河北省2025-2026学年第一学期中段调研检测卷七年级英语（冀教版）答案正在持续更新，目前2025衡水金卷先享题答案网为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

B. By changing the birds’ sound height of songs.C. By comparing songs to human vocal patternsD. By recording songs of birds of varying ages.31. Which factor of songbirds can bring hope to humans in resisting aging?A. Their genetic changes.B. Their ability to adapt to aging.C. Their changes to the hub genes.D. Their act of producing the song.DIn 1807，the German naturalist Alexander Humboldt made a famous drawing ofChimborazo volcano in Ecuador. One side was green with clouds; the other had species namesat different heights. It's a reminder of the richness of life a single mountain can hold.Recent studies show mountains often have more species than plains and jungles nearby.Though covering only 25% of Earth's land (excluding Antarctica)，mountains are home to87 % of species. But biodiversity varies wildly from one mountain to the next, which has beendifficult to explain. Some scientists have called this “Humboldt's mystery"Now, a new paper published in the journal Science suggests that the very process ofmountain formation might be the cause of this phenomenon—the rate andstrength ofgeological uplift determine how rocks, river channels, and microclimates divide the land intodifferent parts, and how many different ecological regions will form. The authors found thatthehigher the mountain andthefaster the uplift rate,the greater thebiodiversitythat themountains possess.To measure how the rise of a mountain range influences evolution (进化)，researchersran a series of mountainbuilding simulations（模拟），where they placed a population of 100individuals of a single species of rodent（啮齿动物）on a plain and watched how they spreadand adapted under different rates of land,rising over the span of 2O million years.The teamchose rodents as they're sensitive to habitat changes and diverse in mountain ecosystems withfossil records. The simulation could be adjusted for other species.As simulated mountains rose, animals moved to new habitats and some got separated.This led to new species over time. Species variety was linked to mountain rising speed andheight, and this pattern held even when model data changed.An outside expert said this study elegantly showed mountain uplift and geography's bigAtlas Mountains have lower diversity. Earth's outer layer movements may shape creatureadaptation and evolution over millions ofyears.32. Why was the famous drawing of Chimborazo volcano mentioned in paragraph 1?A. To introduce the topic.B. To describe the drawing.C. To show respect for the painter.D.Toprovetherichnessofmountains33. What makes “Humboldt's mystery” puzzling?A. Slow evolution of species.B. Plains having more species.C.Limitedmountainfossilrecords.D. Varying biodiversity across mountains.【高二英语第6页(共10页)】