云南省部分学校2025-2026学年高二上学期8月联考 英语试卷（PDF版，含答案，无听力原文及音频）

26.What does Galinat think of the relocation of the library
A.Wasteful.
B.Risky
C.Indifferent.
D.Innovative.
27.What does the underlined part "Library magic"mean in the last paragraph
A.The future of the library.
B.The library's importance.
C.The wonder of the move.
D.The community's unity.
C
Researchers studying the brains of songbirds have found that aging influences the gene
expressions that control the birds'song.The finding could lead to earlier diagnoses and better
treatments for human neurodegenerative(神经变性的)disorders such as Parkinson's disease
and Alzheimer's disease,which affect vocal production in their early stages.
The study found that networks of interacting genes,in a region of the bird's brain
involved with singing,dramatically change as the bird ages.At the center of these networks
are"hub genes(key control genes)"that drive activity of many other genes.A better
understanding of the hub genes could be crucial to developing treatments for age-related
disorders.
Zebra finches(斑胸草雀)，native to australia,have a strikingly similar-looking brain to
humans',particularly the brain movement-control area,which is used for motor function,
including speech.The finches also develop their birdsong by copying their parents and other
birds around them-the same way humans learn to speak.
Perhaps most importantly to researchers,the birdsong is also a measurable marker for
changes in the brain,enabling scientists to track changes in sound height,volume,and
strength.Researchers recorded the songs of 36 birds,ranging widely in age,and studied how
the genes associated with singing began to behave differently as the birds grew older.
"There is some hopeful news in that the bird is still able to produce the song behavior,
even with the genetic changes,and it suggests that there are also some ways that the bird is
adapting to what's going on in the brain,"says Miller,an associate professor in the
neuroscience department."This might offer recovery methods for humans."
Miller says she hopes further research can shed more light on the changes to the hub
genes as the finches age.
28.What role do hub genes play in the gene networks
A.They are direct age-related genes.
B.They stay unchanged as birds age.
C.They make other genes function.
D.They offer treatment to disorders.
29.What primarily makes finches suitable for brain aging research
A.Their brain structure.
B.Their singing ability.
C.Their relation to human.
D.Their way of learning.
30.How did the researchers measure changes in the birdsong
A.By observing the birds'daily activities.
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