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34.What is the significance of the study
A.It makes metal-air batteries available.B.It promises a greener energy future.
C.It helps cut costs of iron-based catalysts.D.It removes the concern about energy security.
35.What would be the best title for the text
A.Metal-Air Batteries:The Next Hit
B.Iron Over Platinum:China's Breakthrough
C.Why Fuel Cells Become Vital to Achieving Climate Goals
D.How an Innovative Structure Replaces Traditional Fuel Cells
第二节（共5小题；每小题2.5分，满分12.5分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项
涂黑。选项中有两项为多余选项。
Sleeplessness may be far worse than a passing annoyance.36 A study published on
Wednesday in Neurology identifies a troubling link:Older people who have chronic insomnia(
appear more likely to experience speedy aging of the brain.
The research involved 2,750 cognitively()healthy adults with an average age of 70.The
participants were followed on average for 5.6 years.37 The data showed that 14 percent of
those with chronic insomnia developed mild cognitive impairment()while 10 percent of those
who did not have chronic insomnia did.
Researchers say that difference is significant in such a study.Diego Z.Carvalho,a sleep
medicine specialist at the Mayo Clinic and lead author of the study,said the work supports growing
evidence that poor sleep,as early as in midlife,may lead to neurodegeneration(神经退化).
However,he noted that the study shows only an association and not causation."It could also be
that poor sleep early on can be an indicator of cognitive decline,"Carvalho said."38"
In recent years,research on sleep and brain health has increased.39 A landmark 2021
study published in JAMA Neurology found that sleeping more or less than the ideal range of seven to
eight hours was connected to cognitive difficulties.Sleeping less than six hours or more than nine
hours was also tied to other health issues,including higher body mass index and increased
symptoms of depression.
40 Instead,it should be considered a crucial long-term investment in brain health and a
defense against cognitive decline.Prioritizing and improving sleep may be one of the most
significant steps we can take to prepare for our cognitive future.
A.When it comes to sleep,the more,the better.
B.It gradually damages memory and mental sharpness.
C.But it's very hard to fully figure out their relationship.
D.They were regularly tested on their cognitive function.
E.Given that,sleep should no longer be viewed as a flexible option.
F.If confirmed,they could help shape strategies to preserve brain health.
G.As a result,more evidence reveals important links between sleep and health.
第三部分语言运用（共两节，满分30分）
第一节（共15小题；每小题1分，满分15分）
阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最
佳选项，并在答题卡上将该项涂黑。
At 44,I never thought I'd dive headfirst-literally-into learning to swim.Yet,here I was.I
showed up for my first lesson,feeling 41 in my son's old goggles()and a bathing suit
more suitable for hanging around.It turned out that the coach and my classmates were 42.
They told me by breaking the process down into 43 steps:first floating,then gliding,then
kicking.By the end of my first class,I had not only learned the basics but also 44 something
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