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Quantum （量子） computers have been on my mind a lot lately.A friend has been sending me articles on how quantum computers might help solve some of the biggest challenges we face as humans.I've also had exchanges with two quantum-computing experts.One is computer scientist Chris Johnson who I see as someone who helps keep the field honest.The other is physicist Philip Taylor.
   For decades，quantum computing has been little more than a laboratory curiosity.Now，big tech companies have invested in quantum computing，as have many smaller ones.According to Business Weekly，quantum machines could help us "cure cancer，and even take steps to turn climate change in the opposite direction." This is the sort of hype （炒作） that annoys Johnson.He worries that researchers are making promises they can't keep. "What's new，" Johnson wrote， "is that millions of dollars are now potentially available to quantum computing researchers."
   As quantum computing attracts more attention and funding，researchers may mislead investors，journalists，the public and，worst of all，themselves about their work's potential.If researchers can't keep their promises，excitement might give way to doubt，disappointment and anger，Johnson warns.Lots of other technologies have gone through stages of excitement.But something about quantum computing makes it especially prone to hype，Johnson suggests，perhaps because "'quantum' stands for something cool you shouldn't be able to understand." And that brings me back to Taylor，who suggested that I read his book Q for Quantum.
   After I read the book，Taylor patiently answered my questions about it.He also answered my questions about PyQuantum，the firm he co-founded in 2016.Taylor shares Johnson's concerns about hype，but he says those concerns do not apply to PyQuantum.
   The company，he says，is closer than any other firm "by a very large margin （幅度）" to building a "useful" quantum computer，one that "solves an impactful problem that we would not have been able to solve otherwise." He adds， "People will naturally discount my opinions，but I have spent a lot of time quantitatively comparing what we are doing with others."
   Could PyQuantum really be leading all the competition "by a wide margin"，as Taylor claims？I don't know.I'm certainly not going to advise my friend or anyone else to invest in quantum computers.But I trust Taylor，just as I trust Johnson.

（1）Regarding Johnson's concerns，the author feels
A
A
.
A．sympathetic
B．unconcerned
C．doubtful
D．excited
（2）What leads to Taylor's optimism about quantum computing？
C
C

A．His dominance in physics
B．The competition in the field.
C．His confidence in PyQuantum.
D．The investment of tech companies.
（3）What does the underlined word "prone" in Paragraph 3 most probably mean？
A
A

A．Open.
B．Cool.
C．Useful.
D．Resistant.
（4）Which would be the best title for the passage？
D
D

A．Is Johnson More Competent Than Taylor？
B．Is Quantum Computing Redefining Technology？
C．Will Quantum Computers Ever Come into Being？
D．Will Quantum Computing Ever Live Up to Its Hype？

【考點】科技；說明文．

【答案】A；C；A；D

【解答】

【點評】

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發(fā)布：2024/4/20 14:35:0組卷：202引用：9難度：0.5

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   Von Ahn says that when he founded DuoLingo he decided to find a way for people to learn a language for free.Free use of languages was something he had a personal interest in addressing：he grew up in Guatemala，where he was surrounded by people all trying to learn English，half of whom were failing to do so and a lot of whom could not afford it.
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（1）What can we say about DuoLingo after its launch？

A．It is used by entire US schools.
B．It costs 30 dollars to download.
C．It changes the use of languages.
D．It makes education more enjoyable.
（2）Why does the author mention Von Ahn in paragraph 3？

A．To show his poverty in childhood.
B．To explain why he founded the app.
C．To prove he was interested in the app.
D．To find out how he designed the app.
（3）What change does DuoLingo bring to language learners？

A．They can master a language faster.
B．They become language fans totally.
C．They can learn in a low-cost way.
D．They can now use it to kill some time.
（4）Which of the following can be the best title for the text？

A．Reasons for Learning a Language
B．How to Learn a Language Online
C．The Development of a Language App
D．Mastering a Language with DuoLingo
發(fā)布：2024/10/31 3:30:1組卷：22引用：4難度：0.3
解析
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（1）How do the drones play a part in farming？

A．Spread the seeds.
B．Work at high altitudes.
C．Improve the working efficiency.
D．Provide early warning in wheat fields.
（2）What does "It" underlined in paragraph 4 refer to？

A．The information.
B．The sensor.
C．The humidity.
D．The robot.
（3）With the help of the advanced technology，farmers can enjoy many benefits EXCEPT

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A．a(chǎn)pplying big data platform
B．a(chǎn)voiding the use of pesticides
C．producing high-quality plants
D．using huge amounts of energy in winter
（4）Where is the text most likely to come from？

A．A book on eating habits.
B．A magazine about high-tech agriculture.
C．An article on the introduction to drones.
D．An environmental conservation booklet.
發(fā)布：2024/7/27 8:0:9組卷：2引用：1難度：0.5
解析
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   Scientists used high-powered lasers to create pairs of shockwaves through a kind of plastic.The plastic is made from hydrogen and carbon，much like methane.The shockwaves created high pressure and heat，like that inside Uranus and Neptune.
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   The diamonds created in the lab were tiny，only a few nanometers（納米）wide.Scientists believe that diamonds would be much larger within Neptune and Uranus.Then they might slowly sink toward the planet's center because of gravity.

（1）What factors are needed to form diamonds？

A．Icy water and gases.
B．Hydrogen and carbon.
C．Extreme heat and pressure.
D．High-powered lasers.
（2）What does the underlined word mean in the last paragraph？

A．Unsuccessful.
B．Natural.
C．Real.
D．Small.
（3）How did scientists prove the theory of forming diamond？

A．By giving examples.
B．By doing experiments.
C．By explaining statistical data.
D．By stating argument.
（4）What can be referred from the text？

A．There are many high-powered lasers in Neptune and Uranus.
B．Scientists long believe that there are diamonds inside Neptune and Uranus.
C．The shockwaves inside Neptune and Uranus crate high pressure and heat.
D．Deep inside Neptune and Uranus could be full of diamonds.
發(fā)布：2024/9/19 9:0:8組卷：5引用：2難度：0.5
解析

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