科目:高中英语 来源:学习高手必修一英语北师版 北师版 题型:050
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科目:高中英语 来源: 题型:阅读理解
第三部分:阅读
第一节:阅读理解(共12小题;每小题2分,满分24分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices(装置)themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”,said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构)of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
1.Which of the following is true of Jae Kwon?
A.He teaches chemistry at MU.
B.He developed a chemical battery.
C.He is working on a nuclear energy source.
D.He made a breakthrough in computer engineering.
2.Jae Kwon gave examples in Paragraph 4_________.
A.to show chemical batteries are widely applied.
B.to introduce nuclear batteries can be safely used.
C.to describe a nuclear-powered system.
D.to introduce various energy sources.
3.Liquid semiconductor is used to _________.
A.get rid of the radioactive waste
B.test the power of nuclear batteries.
C.decrease the size of nuclear batteries
D.reduce the damage to lattice structure.
4.According to Jae Kwon, his nuclear battery _______.
A.uses a solid semiconductor.
B.will soon replace the present ones.
C.could be extremely thin.
D.has passed the final test.
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科目:高中英语 来源:同步题 题型:阅读理解
阅读理解
Batteries can power anything from small sensors to large systems.While scientists are finding ways to
make them smaller but even more powerful, problems can arise when these batteries are much larger
and heavier than the devices themselves.University of Missouri(MU) researchers are developing a
nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density (密度) .”said
Jae Kwon,assistant professor of electrical and computer engineering at MU.“The radioisotope
(放射性同位素)battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery,presently the
size and thickness of a penny,intended to power various micro/nanoelectromechanical
systems(M/NEMS) .Although nuclear batteries can cause concerns,Kwon said they are safe.
“People hear the word‘nuclear'and think of something very dangerous.”he said.“However, nuclear
power sources have already been safely powering a variety of devices, such as pacemakers,space
satellites and underwater systems.”
His new idea is not only in the battery's size, but also in its semiconductor(半导体) .Kwon's battery
uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation
energy can damage the lattice structure(晶体结构)of the solid semiconductor.”Kwon said.“By using a
liquid semiconductor, we believe we can minimize that problem.”
Together with J .David Robertson, chemistry professor and associate director of the MU Research
Reactor, Kwon is working to build and test the battery.In the future, they hope to increase the battery's
power,shrink its size and try with various other materials.Kwon said that the battery could be thinner
than the thickness of human hair.
1 .Which of the following is true of Jae Kwon?________
A. He teaches chemistry at MU.
B .He developed a chemical battery.
C .He is working on a nuclear energy source.
D .He made a breakthrough in computer engineering.
2 .Jae Kwon gave examples in Paragraph 4________.
A .to show chemical batteries are widely applied
B .to indicate nuclear batteries can be safely used
C .to describe a nuclearpowered system
D .to introduce various energy sources
3 .Liquid semiconductor is used to________.
A .get rid of the radioactive waste
B .test the power of nuclear batteries
C .decrease the size of nuclear batteries
D .reduce the damage to lattice structure
4 .According to Jae Kwon,his nuclear battery________.
A .uses a solid semiconductor
B .will soon replace the present ones
C .could be extremely thin
D .has passed the final test
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科目:高中英语 来源:江苏期中题 题型:阅读理解
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科目:高中英语 来源:山东省高考真题 题型:阅读理解
Batteries can power anything from small sensors to large systems. While scientists are finding ways to
make them smaller but even more powerful, problems can arise when these batteries are much larger and
heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy
source that is smaller, lighter and more efficient.
"To provide enough power, we need certain methods with high energy density (密度)", said Jae Kwon,
assistant professor of electrical and computer engineering at MU. "The radioisotope (放射性同位素) battery
can provide power density that is much higher than chemical batteries."
Kwon and his research team have been working on building a small nuclear battery, presently the size and
thickness of a penny, intended to power various micro / nanoelectromechanreal systems (M/NEMS). Although
nuclear batteries can cause concerns, Kwon said they are safe.
"People hear the word 'nuclear' and think of something very dangerous," he said, "However, nuclear power
sources have already been safely powering a variety of devices, such as pace-makers, space satellites and
underwater systems."
His new idea is not only in the battery's size, but also in its semiconductor (半导体). Kwon's battery uses
a liquid semiconductor rather than a solid semiconductor.
"The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy
can damage the lattice structure (晶体结构) of the solid semiconductor," Kwon said, "By using a liquid semicon
ductor, we believe we can minimize that problem."
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor,
Kwon is working to build and test the battery. In the future, they hope to increase the battery's power, shrink
its size and try with various other materials. Kwon said that battery could be thinner than the thickness of
human hair.
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