安徽省安庆市第二中学2023-2024学年高二下学期期中考试英语试题（PDF版，含解析，含听力原文，无音频）

25.What can we learn about the author at his mid-20s
A.There was a shift in his perspective
B.He regarded a squirrel as a bad sign.
C.He began to miss the days before 17
D.A sense of responsibility grew in him.
26.What did the author harvest from gardening
A.A colorful life.
B.Friends'respect.
C.Creative ideas.
D.A sense of belonging.
27.The question at the end is intended to stimulate the readers to consider
A.their own sources of growth
B.the importance of gardening
C.the output of the growing plants
D.their favorite flowers and vegetables
D
The rechargeable lithiumion (battery market is worth more than 50 billion.Lithiumion
batteries,whose demand continues to go up day by day,are used in a wide range of electronic devices.They
are made of four main components,and cathode (is one of them.The cathode's active material type is
what determines the capacity of a battery.
A recent study,led by Wang Yan,a material scientist of Worcester Polytechnic Institute,finds that
lithium-ion batteries made with recycled cathodes work better than those with new cathodes.
"The battery industry is expected to grow sharply in the next decade.This high demand has led
companies to go to extremes,like increasing deep-sea mining,to gain access to the minerals used in
lithium-ion batteries,"Wang said."Mining minerals will have environmental impacts.Recycling spent
lithium-ion batteries offers a way out."
But until now,the prospect of using recycled materials in lithium-ion batteries has some manufacturers
(worrying that it could impact performance.Thus,lithium-ion batteries are still not widely recycled.
Aware of decreasing resources and environmental impact,Wang and other researchers set out to find a way
to make recycling lithium-ion batteries economically practical.Through experiments,they could recover
more than 90%of the key metals from spent batteries.These recovered metals became the basis of the new
recycled battery's cathode's active material.
In tests between Wang's team's recycled batteries and brand-new batteries of the same composition,the
recycled batteries outperform the new ones in their ability to maintain capacity.It took 11,600 charge cycles
for recycled cathode batteries to lose 30 percent of their original capacity.That was about 50 percent better
than the 7,600 observed cycles for new cathode batteries,the team reported.Those thousands of extra cycles
could translate into years of better battery performance,even after repeated use and recharging.
高二英语试题第6页（共8页）