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. |
A.The size of the particles. | B.The difference in materials. |
C.The change in shapes. | D.The variety of applications. |
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. |
A.A short story. | B.A diary entry. | C.A news report. | D.A research article. |
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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.
Mr Cooper does a lot right in this movie AStarLsBorn, beginning with the casting of Lady Gaga, whose relaxing, naturalistic performance is the key to the movie’s force.
A post-Madonna pop artist was known for her elaborate (精心制作的)makeup and costumes, which she adopted no more here.
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?A.Boring. | B.Recommendable. |
C.Ridiculous. | D.Amusing. |
A.rising | B.competing |
C.advancing | D.performing |
A.The remakes of the movie adopt different plots. |
B.The movie tells the story of two friends on different paths. |
C.Natural performance is considered as the only principle in this movie. |
D.The movie is more impressive than what movie analysts expected. |
A.A Hollywood Movie—A Star Is Born |
B.Lady Gaga Is on the Edge of Potential Oscar Glory |
C.A Latest Film of Lady Gaga Won the Oscar Award |
D.The Box Office of Bradley Cooper’s New Movie |
【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. |
A.To repair their house. | B.To carry out their experiment. |
C.To help with the rescue. | D.To take care of their parrots. |
A.A new home will be built for Peratino and Stepp. |
B.Many more animals need to be saved. |
C.Parrots are more important than other animals. |
D.All animals will be taken away in cages. |
A.It was meaningful. | B.It was not worth the risk. |
C.It encouraged more people to take part. | D.It turned out to be fruitless. |
【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. |
A.Raising head. | B.Brief report. | C.One-on-one match. | D.Advance warning. |
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. |
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. |
【推荐1】The Nobel economics prize was awarded on Monday to Harvard University professor Claudia Goldin for research that has advanced the understanding of the gender (性别) gap in the labor market.
The announcement went a tiny step to closing the Nobel committee’s own gender gap: Goldin is just the third woman to win the prize out of 93 economics laureates (获奖者). She has studied 200 years of women’s participation in the workplace, showing that despite continued economic growth, women’s pay did not continuously catch up to men’s and a divide still exists despite women gaining higher levels of education than men. “I’ve always been an optimist. But when I looked at the numbers, I found in the 1990s, our labor force participation rate for women was the highest in the world, and now it isn’t the highest in the world,” Goldin told The Associated Press.
“Although Goldin’s research does not offer solutions, it allows policymakers to deal with the problem,” said Randi Hjalmarsson, a member of the Nobel committee. “She explains the source of the gap, and how it’s changed over time and how it changes with the stage of development. By finally understanding the problem and calling it by the right name, we will find a solution.”
Goldin, 77, told AP that what happens in people’s homes reflects what happens in the workplace. Women often have to take jobs that allow them to be on call at home—work that often pays less.
“Goldin tried to fill in missing data for her research,” Hjalmarsson said. For parts of history, systematic labor market records did not exist, and, if they did, information about women was missing. “So Goldin had to be a detective to find novel data sources and creative ways to use them to measure these unknowns.”
1. What can we infer from the second paragraph?A.Men gained higher levels of education than women. |
B.The women’s pay caught up to men’s 200 hundreds years ago. |
C.Many women scientists have won the Nobel economics prize these years. |
D.At the late 20th century, American women labor force participation rate was the top. |
A.Randi Hjalmarsson didn’t agree with Goldin. |
B.Most of the women usually prefer to be housewives. |
C.What happens in family life often mirrors that in the workplace. |
D.Goldin’s research offered the policymakers solutions to the problem. |
A.Lack of experience. | B.Lack of support. |
C.Lack of money. | D.Lack of data. |
A.A Solution to the Gender Gap in the Labor Market |
B.Claudia Goldin—a Great Economics Data Detective |
C.The Third Woman Who Wins the Nobel Prize in the World |
D.Nobel Economics Prize Goes to Harvard University Woman Professor |
【推荐2】Thomas Alva Edison (爱迪生)was awarded more patents(专利) on inventions than any other American. When he died in 1931,Americans wondered how they could best show their respect for him .One suggestion was that the nation observe a minute or two of total blackout . All electric power would be shut off in homes,streets,and factories. Perhaps this suggested plan made Americans realize fully what Edison and his inventions mean to them. Electric power was too important to the country. Shutting it off for even a short time would have led to complete confusion. A blackout was out of the question.
On the day of Edison’s funeral(葬礼),many people silently dimmed their lights. In this way they honored the man who had done more than anyone else to put the great force of electricity at his countrymen’s finger tips.
1. This selection says that Thomas Edison________.A.was the only important American inventor |
B.received the first American patent |
C.received more patents than any other American |
D.was the first American inventor |
A.he made the first electric light |
B.electric power was 100 years |
C.the country realized electricity’s importance |
D.he died in 1931 |
A.turn off the lights in factories and schools |
B.observe a few minutes of total silence |
C.dim all electric lights |
D.shut of all electricity for a short time |
A.heard of his death |
B.heard of the plan to honor him |
C.first used electric power |
D.tried to carry out the plan |
【推荐3】A NASA climate research scientist, Cynthia Rosenzweig, who has spent much of her career explaining how global food production must adapt to a changing climate, was awarded the World Food Prize on Thursday.
“We basically cannot solve climate change unless we address the issues of the greenhouse gas emissions from the food system, and we cannot provide food security for all unless we work really hard to develop adaptable agricultural systems,” she told The Associated Press in an interview.
Rosenzweig, who describes herself as a climate impact scientist, grew up in Scarsdale, New York, a suburban area that she said led her to seek out life in the country. Later, she moved to Italy, and developed a passion for agriculture. After returning to the United States, she focused her education on agronomy (农学).
She worked as a graduate student at the Goddard Institute for Space Studies in the early 1980s, when global climate models were beginning to show the effects of human-generated carbon dioxide on the global climate. As the only team member studying agronomy, she researched the impact on food production and has been working since then to answer those questions.
Rosenzweig’s work led to the Environmental Protection Agency’s first prediction of the effects of climate change on the nation’s agricultural regions in the agency’s assessment of the potential effects of climate change on the United States in 1988. She was the first to bring climate change to the attention of the American Society of Agronomy and she organized the first sessions on the issue in the 1980s. The research organization she founded, AgMIP, develops adaptation packages, which could include the use of more drought-tolerant seeds and improved water management practices.
Even the largest agribusiness corporations have shown a willingness to listen. Some models her colleagues have developed show how businesses could be effected by climate change and how they have a role to play in reducing the impact on climate.
“It’s really a global partnership of all the global food systems to come together to restrain climate change and maintain the food security for the planet,” she said.
1. What can we learn from paragraph 2?A.Plants can hardly cause greenhouse gas emissions. |
B.Issues of food security will result in climate change. |
C.Improving food systems will help address climate change. |
D.Some adaptable agricultural systems have been put into use. |
A.Modest. | B.Devoted. | C.Adaptable. | D.Warm-hearted. |
A.Rosenzweig’s contributions. | B.Rosenzweig’s challenges. |
C.Rosenzweig’s expectations. | D.Rosenzweig’s backgrounds. |
A.The models. | B.The practices. |
C.The colleagues. | D.The businesses. |