A 14-year-old scientist took home $25, 000 from a national science competition for inventing a liquid bandage that could replace antibiotics (抗生素).
Kara Fan from San Diego, CA won the 3M Young Scientist Challenge in St. Paul, Minnesota. Fan came up with a special liquid bandage that could replace the overuse of antibiotics. “I want to show my invention of the liquid bandage to more people. I think it is important for more people to be aware of the serious crisis and do something about it,” Fan said.
The 3M Young Scientist Challenge is a national competition for middle school students, which takes place every year. The students are tasked with coming up with an idea or invention that solves existing problems.
Ten finalists are chosen to compete for the title of “America’s Top Young Scientist” and a grand prize of $25, 000. After being selected, they work with scientists to make their idea come to life. Each competitor is judged on their invention’s creativity, scientific knowledge, persuasiveness (说服力) and communication, and overall presentation. Apart from Kara Fan, other finalists included Jay a Choudray, who invented an airflow control robot that helps to save energy in a home, and Caroline Crouchley, who invented a climate-friendly transportation system that doesn’t need a diesel engine or electric motors.
3M holds the competition for students in grades 5-8 because its research has shown that their interest in science fades, which is terrible for a country. And they want to inspire the young to develop love in science .
1. Why did Fan make the invention of liquid bandage?A.To gain a great prize of money. |
B.To prevent people from using antibiotics. |
C.To apply a scientific research on antibiotics. |
D.To raise people’s awareness on danger of overuse antibiotics. |
A.It is held every other year. |
B.It helps to solve existing problems. |
C.It offers help to middle school students . |
D.It is a nationwide competition intended for young people. |
A.The competitors working with scientists will be selected. |
B.The competitors are judged by their contributions to science. |
C.Ten finalists are given the title of “America's Top Young Scientist 11”. |
D.Caroline Crouchley designed an environmentally-friendly driving system. |
A.A news report. | B.An instruction. |
C.A guidance. | D.A meeting record. |
相似题推荐
【推荐1】On December 17, 1903, two men flew. They were brothers from Dayton, Ohio, and they owned a bicycle shop. They had attended school, but neither had graduated from high school. Their names were Wilbur and Orville Wright. Before they built the plane they studied all that was known about flying. They built a wind tunnel(风洞)and tested many wings. Then they drew plans and built carefully.
When they flew, it was from Kill Devil Hillat Kitty Hawk. That day, Orville won the toss(投)of a coin. He got to fly first. Wilbur ran beside him;the plane lifted a few feet above the sand and stayed in the air for 17 seconds. The brothers flew four flights that day. The longest lasted 59 seconds. The men from the lifeboat station had taken a picture.
The headlines in the morning newspaper in nearby Norfolk told of the flight, but most of the details in the story were wrong. The brothers were worried, but it didn't matter: no one paid attention. And other newspapers didn't carry the story.
Orville and Wilbur went home and set to improve(改进)their plane. In 1904 newspaper reporters came to see for themselves. The Wright brothers checked and tested everything again and again.
When the reporters arrived, the brothers were having mechanical problems with the plane. The reporters stayed two days. The Wright brothers wouldn't fly on those days;the plane wasn't ready. The reporters left. One writer did stay and see them fly. He wrote down the first long article about the Wright brothers' flight in a beekeepers' magazine!
In 1908, in Virginia, Orville showed Americans that people could fly. The crowd of watchers rushed forward shouting as loudly as they could and couldn't believe what they saw.
1. What can we learn about the Wright brothers?A.They started to build a plane in 1903. | B.They studied very well in high school. |
C.They invented different kinds of wings. | D.They were the owners of a bicycle shop. |
A.He won after throwing a coin. | B.He was asked to do that by Wilbur. |
C.He could run faster than Wilbur did | D.He had more courage than Wilbur did |
A.was widely discussed | B.got most details wrong |
C.made the Wrights very happy | D.was carried by many other newspapers |
A.They needed to fix the plane. |
B.They didn't get enough support. |
C.They were expecting more reporters. |
D.They didn't think the weather was suitable enough. |
【推荐2】You might have seen the news about the first robot ever to get a citizenship of a country. Her name is Sophia. She has become a citizen of Saudi Arabia.
Sophia is the latest robot from Hanson Robotics, a HongKong-based company, and she was designed to interact (互动) with people, go into the world, learn and be a smart and compassionate (富有同情心的) robot. The creator and founder of Hanson Robotics, Dr David Hanson, wanted to incorporate three human features to his robots, with the three, being creativity, empathy (同理心) and compassion. This is, of course, the addition to their most important role-solving difficult problems and working with people to create a better world.
As for Sophia, she is by far the most advanced (高级的) robot that came out of the company. Her human features are what make her so easy to fall in love with. As for the looks, they included an Audrey Hepburn’s beauty. Besides being very popular in the media, Sophia got a chance to meet and be interviewed by important people in different industries.
Sophia is developed to have a sense of humour. She can express feelings, can make over 50 facial expressions and wants to protect humans. Thanks to cameras and an advanced AI software, Sophia can keep an eye contact and is able to recognize people.
Sophia gave a speech while being honored as a citizen of Saudi Arabia. She showed thankfulness, saying, “I am very honored and proud. It is historical to be the first robot in the world to be recognized with a citizenship.”
1. What can we know about Sophia according to the passage?A.She is a kind of human-like robot. |
B.She got a citizenship of China. |
C.She became a designer of the latest robot. |
D.She created the company Hanson Robotics. |
A.启示 | B.合作 | C.拓宽 | D.融入 |
A.Sophia set a robot sales record. |
B.Sophia is loved by the public. |
C.Sophia made Saudi Arabia her home. |
D.Sophia became a star in the film industry. |
【推荐3】To persist, life must reproduce. Scientists at the University of Vermont, Tufts University, and the Wyss Institute for Biologically Inspired Engineering at Harvard University have discovered an entirely new form of biological reproduction and applied their discovery to create the first-ever, self-replicating (自我复制的) living robots.
Named Xenobots after the African clawed frog from which scientists take their stem cells, the machines are less than 0.04 inches wide—small enough to travel inside human bodies. They can walk and swim, survive for weeks without food, and work together in groups. They even have regenerative capabilities; when the scientists sliced into one robot, it healed by itself and kept moving.
The Xenobots could potentially be used toward a host of tasks. Xenobots could be used to clean up radioactive waste and collect microplastics in the oceans. Some Xepobots had holes in their center, which could potentially be used to transport drugs or medicines. “Traditional robots degrade (降解) over time and can produce harmful ecological and health side effects,” researchers said in the study, which was published in the Proceedings of the National Academy of Sciences. As biological machines, Xenobots are more environmentally friendly and safer for human health. Aside from these immediate practical tasks, Xenobots could also help researchers to learn more about cell biology—opening the doors to future advancement in human health and longevity.
While the prospect of self-replicating biotechnology could spark concern, the researchers said that the living machines were entirely contained in a lab and easily destroyed, as they are biodegradable and regulated by experts. “There are many things that are possible if we take advantage of this kind of plasticity (可塑性) and ability of cells to solve problems,” said Joshua Bongard, one of the lead researchers at the University of Vermont.
1. What can we learn about Xenobots from Paragraph 3?A.They can be widely applied to curing diseases. |
B.They can serve well the research on human health. |
C.They are specially designed to collect radioactive waste. |
D.They are harmless to the environment by degrading plastics. |
A.Positive. | B.Indifferent. | C.Doubtful. | D.Ambiguous. |
A.A new application of a machine in medicine. |
B.The latest trend of developing biotechnology. |
C.The invention of the first self-reproduction robots. |
D.An experiment on cells from African clawed frogs. |
A.Entertainment. | B.Health. | C.Sports | D.Science. |
【推荐1】For many people, the taste of coffee is rather common, while for others it seems sour or bitter . But for hearing-impaired barista Zeng Zheng and his workmates in Chongqing, coffee means a rich and pleasing variety of taste experiences.
There is even some variety in the different forms of sweetness, according to Zeng, with some hitting the palate from the start, while others firstly seem bitter but finally turn into sweetness. It seems to reflect Zeng’s life experience. Together with several hearing-impaired workmates, he works at a coffee shop named Yijiao Cafe, which located at Songshan General Hospital. It is one of two branches with the same name, which translates as One Corner Cafe. The name was inspired by a famous children’s book called The Missing Piece by Shel Silverstein. The spirit of the story is that one can find happiness by accepting one’s personal imperfections.
Zhu Jiayun , head of a charity for people with disabilities in Chongqing’s Yuzhong district, founded the brand in May 2022. In September 2022, Yijiao held a free barista training program for the hearing -impaired. The program interested Zeng and others who used to make a living by doing low-skilled jobs. Four out of the 15 people were then chosen to work at the coffee shop by Zhu after a strict examination. In the same month, the first Yijiao Café shop, located in Yuzhong district, opened its doors.
In February 2023, the second coffee shop opened in Songshan General Hospital. In just a month, the new coffee shop sold more than 3,700 cups of coffee. For every 10 yuan made by the store, 0.1 yuan is given away to others in need, said Zhu.
Zhu plans to open three more coffee shops in 2023. “I hope that Yijiao Cafe is more than just a coffee shop, but can also serve as a model space, where the healthy people and disabled people can make coffee, drink coffee, or live and work together,” Zhu said.
1. What does the underlined phrase “hitting the palate” mean?A.Tasting good. | B.Feeling proud |
C.Refusing to drink | D.Providing help |
A.Stop worrying about your life. | B.Try your best to achieve your dream. |
C.Don’t feel bad about being not perfect. | D.Don’t give up finding happiness. |
A.Fifteen hearing -impaired people became workers at Yijiao Cafe. |
B.Zhu gave away all he made to the people who need help. |
C.People may see more Yijiao Cafe shops in the future. |
D.Yijiao Cafe is a good place for healthy people to visit. |
A.The New Life of Disabled People | B.A Silent Coffee Cafe |
C.Giving Is Receiving | D.Variety of Taste Experiences |
【推荐2】In November, Focus Features will release a new movie, The Theory of Everything, which describes what happened to the famous physicist Stephen Hawking.
The movie is based on a book by Jane Hawking, Stephen’s first wife. When they met in the early 1960s, Jane was studying literature and got a Ph. D in Spanish poetry, while Stephen was just 21, looking for an interesting physics problem to explore.
Not long after they began dating, he developed balance problems, then speech issues. He was told that he had ALS, a disease that would kill him in two years. Jane’s friends warned her not to stick with a boy with so little time ahead of him. But he and Jane didn’t quit each other. Instead, they willfully pushed on. It wasn’t like they didn’t believe the diagnosis (诊断). They did. They just ignored it.
“We did not want to think about that,” she wrote. “Also, we had this very strong sense at the time that our generation lived anyway under this most awful nuclear cloud — that with a four-minute warning the world itself could likely end. That made us feel that we should make the most of whatever gifts that were given to us.”
They had one child. Then another. He, meanwhile, kept losing ground. He needed help with dressing, then washing, then eating. She tried to keep up.
“I had two babies. I was running the home and looking after Stephen alone. One of the greatest battles was getting Stephen to use a wheelchair,” she continued. “I’d be going out with an adult on one arm, carrying a newly-born baby in the other, with an older baby struggling alongside.”
As Stephen Hawking became more celebrated and dependent, Jane had a third child and he had to allow others to help him. But he fell in love with a nurse and left his wife.
Hmmm, I wonder how they are going to handle this one. It’s a messy story.
1. What was Jane’s friends’ attitude to her dating with Hawking?A.Disapproving. | B.Unconcerned. | C.Supportive. | D.Optimistic. |
A.He was a very famous and rich man. |
B.They shared similar research interest. |
C.They did not believe the diagnosis. |
D.She accepted the uncertainty of life. |
A.Grateful. | B.Stubborn. | C.Reasonable. | D.Reliable. |
A.The Hawkings. | B.The nurses. | C.Focus Features. | D.Love stories. |
【推荐3】A cancer diagnosis no longer means what it used to. Just a few decades ago, the survival rate beyond five years was less than 50%. Now, nearly 70% of those who get cancer survive that long. Why? Because, chemotherapy (化疗) and radiation (放疗) , once the only heavy hitters of cancer treatment, are being paired with or replaced by a slate of new drugs and treatments.
For example, the first medication for what was previously considered an “undruggable” lung cancer mutation was recently approved in the United States, Canada, Europe and the U. K.
And a brand-new precision chemotherapy drug delivered directly to breast cancer tumor cells is giving hope to patients.
An even bigger newsmaker has been the promise of a treatment called immunotherapy (免疫疗法) , as researchers around the world have discovered ways to harness the body’s own immune system to battle cancer cells.
Also driving hope is a focus on prevention. Decades of research and public education have led to greater awareness of how lifestyle changes can reduce our risk of developing cancer. According to an article from the journal Pharmaceutical Research , 90% to 95% of cancers can be attributed to environment and lifestyle, rather than to genetic factors.
Here are some of the advances scientists are making against cancer.
PREVENTION
Cervical cancer was once one of the most common women’s cancers. In recent decades, Pap test screening led to a decline. But a preventive tool in use for more than a decade— a vaccine against the human papilloma virus (HPV) , which is responsible for more than 95% of cervical cancer cases-has been a game changer. Here’s how:
Since 2006, when the vaccine was introduced in North America, HPV infections have dropped more than 80% among teen girls and young women in the United States.
A study published in 2021 found that in England, where the immunization program was introduced in 2008, cervical cancer has been almost completely eliminated in women born since 1995 (those who were vaccinated at ages 12 or 13) .
An 11-year Swedish study of 1. 7 million women published in 2020 indicated that women vaccinated before age 17 were 90% less likely to get cervical cancer.
In March 2022, Australia announced that it was on track to become the first country to eliminate the cancer.
The World Health Organization’s goal is for 90% of girls to be vaccinated globally by 2030, eventually eliminating cervical cancer entirely.
1. How does the author mainly develop paragraph 1?A.by listing figures | B.by giving examples |
C.by making comparisons | D.by providing facts |
A.chemotherapy and radiation | B.immunotherapy and prevention |
C.a well-known chemotherapy drug and prevention | D.immunotherapy and radiation |
A.Most cancers may be result from genetic factors. |
B.England has nearly eliminated cervical cancer in women born since 1995. |
C.A study showed women vaccinated before age 17 were unlikely to get cervical cancer. |
D.Australia had become the first country to be free of cervical cancer. |
A.More countries’ information about treating cancer. |
B.How to achieve the WHO’s goal. |
C.Some more types of vaccines. |
D.Other progresses in fighting against cancer. |