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题型:阅读理解-阅读单选 难度:0.65 引用次数:114 题号:20859768

The 2023 Nobel Prize in Chemistry has been awarded to Moungi G. Bawendi of Massachusetts Institute of Technology, Louis E. Brus of Columbia University, and Alexei I. Ekimov of Nanocrystals Technology Inc. in New York for the discovery and development of quantum dots (量子点).

The three scientists each contributed to a fundamental discovery, according to officials from the Royal Swedish Academy of Sciences, which awards several of the prizes each year. The work they’ve done has already led to new technology in television screens and bio-imaging.

Reached by phone during a press conference early Wednesday morning, Bawendi offered a stream of reactions: “Shocked. Sleepy. Very unexpected. And very honored.”

In a rare event, the winners’ names were leaked to the Swedish media before the official announcement. But Bawendi said he’d been sound asleep, so he didn’t hear anything about it.

Quantum dots are particles (粒子) that are so incredibly small that their size actually starts to affect their properties. For example, blue quantum dots and red quantum dots can be made from the exact same material, with the only difference being the size of the particle itself. (The blue quantum dots are smaller than red ones.)

In fact, changing the size can alter (改变) many different properties beyond just color, which means that quantum dots could be useful for a variety of applications, including building better solar panels and perhaps even creating fuel by using sunlight.

The three scientists will share the prize money of 11 million Swedish kronor (close to$995,000) in equal parts. This is the third science-focused Nobel Prize to be awarded this week. On Tuesday, the physics prize was awarded to Anne L’ Huillier, Pierre Agostini and Ferenc Krausz. And on Monday, Katalin Kariko and Drew Weissman won the prize in physiology or medicine.

Officials plan to announce the literature prize on Thursday, followed by the peace prize on Friday. The economics prize will be awarded on Monday.

1. How did Bawendi feel when receiving the call early Wednesday morning?
A.Angry.B.Surprised.C.Bored.D.Sorry.
2. What causes the difference in color between blue quantum dots and red ones?
A.The size of the particles.B.The difference in materials.
C.The change in shapes.D.The variety of applications.
3. What does the underlined word “This” in paragraph 7 refer to?
A.The 2023 Nobel Prize in physics.B.The 2023 Nobel Prize in medicine.
C.The 2023 Nobel Prize in literature.D.The 2023 Nobel Prize in chemistry.
4. What is the text?
A.A short story.B.A diary entry.C.A news report.D.A research article.
【知识点】 新闻报道 科学家

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【推荐1】Lady Gaga’s latest film became an instant hit over the weekend, helping push theaters to an October ticket-selling record.

A Star Is Born, actor-turned-director Bradley Cooper’s remake of a Hollywood classic in the late 1930s, went beyond the previous expectations of movie analysts by roughly 30 percent.

The original production is such a great Hollywood myth that it’s no wonder Hollywood keeps telling it. Whatever the era, the director or the headliners, it tells the story of two lovers on dramatically different paths: a famous man who’s racing to the bottom and a woman who’s soaring to reach the top.

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This unmasking of Lady Gaga makes her character seem genuine or say natural, a quality that the movie is in favor of and that serves as a kind of everlasting first principle.

1. What does the author think of the new movie?
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C.Ridiculous.D.Amusing.
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2020-02-10更新 | 227次组卷
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【推荐2】A task called “Operation Noah’s Ark” was carried out to cage (装笼子) and ship hundreds of birds off Pine Island in Florida after it was hit hard by Hurricane (飓风) lan.

The government called on people of Pine Island to give up their homes because of damaged roads, including a broken bridge that prevented deliveries of food, gas and other life-supporting supplies.

But Will Peratino and Lauren Stepp did not want to leave and give up their 275 parrots at the Malama Manu Sanctuary. “We would not give them up. I would never leave them. Never,” Stepp told The Associated Press. “If they cannot be fed or watered, they will die. And I can’t live with that.”

The birds had been relying on food donated by wildlife officials since Hurricane lan hit, but the supply of fruit, peanuts and other foods would soon be hard to come by because of the broken bridge and the lack of gas on the island.

Bryan Stern, the founder and leader of Project Dynamo, said his team had saved at least six dogs and three cats before Tuesday’s massive rescue (救援). “Our saved animal numbers are small compared with the number of the 100 cages of parrots that we are about to save,” Stern said, before carrying out the rescue task. “Will and Lauren own the preserve, and their hearts and souls are in the birds. So they’re going through their own suffering from the hurricane and having to rebuild their lives. They lost all kinds of things.”

The volunteers were not about to let that happen. For several hours, the volunteers used nets and their hands to put the birds into cages. “To have every bird safe is a huge task,” Peratino said. “I mean, it’s almost impossible to do. So the help we’ve gotten has been priceless.”

1. Why did the officials ask people to leave the island?
A.The destroyed homes needed rebuilding.B.The parrots no longer needed their help.
C.There were no roads to deliver goods.D.A more powerful hurricane would come.
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4. What did Peratino think of the volunteers’ effort?
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【推荐3】3M and Discovery Education announced Sean Jiang from Gilman School as one of the top ten finalists from across the nation for the 2023 3M Young Scientist Challenge. It’s a competition that encourages students to identify an everyday problem and submit a video showing the science behind the solution he or she came up with.

14-year-old Jiang decided to help those who can’t see. Blind people had a hard time navigationg (导航) objects that are medium to far range. So Jiang wanted to design something to give them a heads-up on obstacles (障碍) that may be incoming.

Jiang’s inspiration came from the powers of the hearing system. “I learned in school that bats and whales are able to use echolocation (回声定位) to help them navigate and just use their sense of hearing and I also saw on YouTube some very skilled blind people that use echolocation to help them walk,” said Jiang.

Jiang started with a virtual reality setting and then made it a reality. His creation uses a depth camera that can detect how close objects are, thus giving enough time to avoid the obstacles. When a blind is walking with the device, the sensor of the depth camera gathers the information regarding the obstacles’ position and distance. Then the AI system in it will turn the distance data into musical sound guidance. This could significantly increase the walking speed of a blind person as well as decrease the number of obstacles they hit.

Some other similar programs were alright at finding objects that were in close range, but Jiang still wanted the blind to experience the world even fuller so they were able to see stuff that was much further away than their circle of reach.

In October, the top ten finalists will compete in person in Minneapolis for the title of “America’s Top Young Scientist” and a $25,000 prize.

1. What’s the main purpose of the 2023 3M Young Scientist Challenge?
A.It is to inspire students to recognize a daily problem and demonstrate the scientific principle behind the solution.
B.It is to help schools select talents.
C.It is to develop students’ teamwork and creativity.
D.It is to encourage students to find problems and build their confidence.
2. What does the underlined word “heads-up” mean in paragraph 2?
A.Raising head.B.Brief report.C.One-on-one match.D.Advance warning.
3. What can we learn about Jiang from the text?
A.He was the champion of the 2023 3M event.
B.He invented technology to remove road obstacles.
C.He sought to assist the blind in walking smoothly.
D.He developed a new navigation app for his school.
4. What is Paragraph 3 mainly about?
A.How did the device help the blind.
B.The source of inspiration for Sean Jiang’s invention.
C.The reason Jiang entered the competition.
D.Jiang’s device’s creation process.
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