Broadcom MASTERS® (Math, Applied Science, Technology and Engineering for Rising Stars), a program of Society for Science & the Public, is a national science competition for middle school students. Here are four award winners this year.
Rachel Bergey, 14, in Harleysville, Pennsylvania, won the $10,000 Lemelson Award for Invention, awarded by The Lemelson Foundation to a young inventor creating promising solutions to real-world problems. Rachel developed a trap made of tinfoil (锡纸) and netting for the Spotted Lanternflfly (斑点灯笼蝇), a species causing damage to trees in Pennsylvania.
Alaina Gassler, 14, in West Grove, Pennsylvania, won the $25,000 Samueli Foundation Prize for her project reducing blind spots in cars. She designed a system that can display anything that might block the driver’s line of sight. Alaina was inspired to create her device after seeing her mother struggle with blind spots in their family automobile.
Sidor Clare, 14, in Sandy, Utah, won the $10,000 Marconi/Samueli Award for Innovation, an honor made possible by Samueli’s generous donation of his 2012 Marconi Society Prize Award.
Sidor developed bricks that could one day be made on Mars, so that humans would not be required to bring building materials in order to build there.
Alexis MacAvoy, 14, in Hillsborough, California, won the $10,000 Robert Wood Johnson Foundation Award for Health Advancement, recognizing her hard work and excellent performance in health-related fields. Alexis designed a water filter (过滤器) using carbon to remove heavy metals from water.
The winners were selected by a group of distinguished scientists, engineers and educators. Each winner’s school will receive $1,000 from Broadcom MASTERS® to benefit their science programs.
1. Why did Rachel invent a trap?A.To catch Spotted Lanternflies. | B.To prevent traffic accidents. |
C.To beautify Pennsylvania. | D.To grow green plants. |
A.Rachel Bergey’s. | B.Alaina Gassler’s. |
C.Sidor Clare’s. | D.Alexis MacAvoy’s. |
A.She was encouraged by other scientists. | B.She paid more attention to health. |
C.She was a productive inventor. | D.She received the largest award. |
相似题推荐
请看下面5个人的要求:
1. Anna is a busy college teacher only free on Sunday.She is very worried about her parents’ health. She hopes to find some better ways to improve her parents’health condition,but not medicine.
2. Mary is a student in Oxford University and she has a wide interest.She is especially interested in visiting some places and dressing up herself.
3. Rain has won the first prize in the National Youth Music Contest.So his classmates are asking him to find a place to hold the party for celebration and fun.
4.Jane has got up too early to meet her son from abroad at the airport.On such a cold winter early morning,what she needs is some hot drinks to warm herself.
5.Sam is a nice boy and does well in all his college subjects except English.Now he has made up his mind to improve English because he has to pass CET Band-4.
阅读下列材料, 从所给的六个选项(A, B,C, D, E, F)中, 选出符合各个小题要求的最佳选项,并在答题卡上将该项涂黑。
A.Sandwich Side & Café
This is the best place to enjoy wide choices.Do you want to enjoy our freshly-made sandwiches? Or we will offer you quick prepared hot drinks and dishes.Here you can find a complete service and great value for fun.
B.A Comfortable Wailing Bar
You’ll find us near the entrance to the airport waiting room.This is an official restaurant.where you can be served with several kinds of hot drinks and dishes while hoping to meet Somebody patiently.
C.A Lecture of Science & Health
Is it possible to beat high blood pressure without drugs? The answer is“Yes”,according to the researcher at Johns Hopkins medical centre.This weekend.Dr.Alan will tell you how these people reduce their blood pressure in an easy and healthy way.
D.A Visit to Kensington Palace
Birthplace of Queen Victoria,this royal(皇家)palace is open to the public for the first time.You can have a look at some Royal Dress Collection,including clothing dressed by Diana Princess.
E.An Introduction to Website
This Website provides hundreds of pages of free English learning materials.There are many levels from low beginner to high beginner,from many English jokes to formal test papers.You certainly can find what you need.
F.A Carriage(马车)Ride
Take a trip around Home Park in a horse-drawn carriage.Riders begin and end in Home Park at the entrance by the East Front Gardens.20 minutes of the whole period.It depends on the weather condition.
【推荐2】The signs appeared practically overnight. They’d been planted everywhere—in front of homes, along sidewalks, around the local high school. Each featured just a few uplifting words in simple black type: “Don’t Give Up,” “You Are Worthy of Love,” “Your Mistakes Do Not Define You.” The high school in Newberg, Oregon, had lost four students and three former graduates to kill themselves that year, so the town of 25, 000 instantly understood the messages.
Amy Wolff had done so, in part, because she’d lost her own teenage brother in an accident about 20 years earlier. It was compassion (同情) for compassion’s sake.
Yet as Wolff saw the deep emotion her sign inspired in her neighbors, she decided to step forward to share her message publicly. Instantly, her inbox was flooded with requests for more signs. Since then, the Don’t Give Up Movement has spread from Newberg to the hearts and yards of people in every state. Wolff charges only the cost of materials and shipping. “It’s a terrible business decision if we wanted to function like a business,” she says.
Chrisanne Moger commented on one of the movement’s posts about the need for one particular sign, “We’re All in This Together.” She thought it would really speak to a world huddling together under the cloud of COVID-19. Wolff agreed, and she received 750 orders within a week of its creation. A mother in Colorado, unable to travel during the quarantine (隔离), contacted the organization after her stepson’s sudden death. “I saw one of your signs recently and it was a touching message from above to hang on.” she wrote.
Aware of the added emotional challenges isolation brings, the Don’t Give Up Movement has since offered to send handwritten letters of support to anyone in quarantine who needs it.
1. Why did the signs suddenly appear everywhere in Newberg?A.They featured some inspiring words. |
B.The high school had lost several students. |
C.They conveyed simple messages. |
D.The outbreak of COVID-19 scared people. |
A.It is a non-profit organization. |
B.It met all requests of neighbors. |
C.It gradually won the hearts of people. |
D.It was started in honor of Amy’s brother. |
A.They bring emotional challenges. |
B.They offer great encouragement. |
C.They provide information for COVID-19. |
D.They improve interpersonal relationships. |
A.She’s active and open-minded. | B.She’s talkative and sociable. |
C.She’s decisive and ambitious. | D.She’s selfless and devoted. |
【推荐3】Living with Alzheimer’s (老年痴呆症), Lata, an 83-year-old lady finds focus and inspiration in tribal art, and the only memories she is left with — her childhood.
Young Lata attended an English school in Mumbai.
However, her happy days didn’t last long.
Four years ago, she was diagnosed with Alzheimer’s which has affected her short-term memory.
A.She still cooks three meals a day. |
B.Doctors’ advice was to keep her engaged. |
C.Her other constant support has been her husband. |
D.It is very important to make the home comfortable. |
E.She frequently talks about her childhood memories. |
F.Her father passed away before she could complete her education. |
G.She had a keen interest in music and art despite having no formal training. |
【推荐1】Richard Browning has been attracted by flight ever since his father took him into the hills to fly gliders (滑翔机). He has certainly been an adventurer. Richard took it upon himself to develop his own jet suit and began to experiment with some of his friends. He made quick progress. In 2017, he felt confident enough to start a company called Gravity Industries that could make jet suits. It took 15 months to develop the very first one.
Five very small jet engines are built into the jet suit. These are powered by kerosene (煤油). Two engines are located on the pilot’s arms and one is placed on the back. Each engine weighs less than two kilos and can produce 22 kilos of thrust (推力).
The pilot is able to control the direction and speed of the flight. He does this by small movements of the arms which require hours of practice. One wrong move and you could end up falling to the ground.
Richard is not only in charge of his company; he is also the chief test pilot. He has spent hours and hours perfecting the correct moves to create a perfect flight. He was able to enter the Guinness Book of World Records in 2017 when he became the fastest man in a jet suit and flew at 51 kilometres per hour. Since then, he has presented his jet suit at 60 events in 20 different countries around the world. More recently, he flew alongside Brighton Pier on the south coast of England at 136 kilometres per hour!
The objective of Richard’s company has been to build a suit which members of the public can buy. The first went on sale in a department store in 2018 for f 340, 000. If you want to jet around your own hometown, it’s time to start saving—or to work for Richard Browning.
1. What do we know about Richard?A.He was absorbed in flight. | B.He is no stranger to misfortune. |
C.He is slow in making up his mind. | D.He started his company with his father. |
A.It is easy to control. | B.It is the lightest in the world. |
C.It consists of two engines. | D.It leads the world in its field. |
A.It’ll be much faster. | B.It’ll save more energy. |
C.It’ll reach ordinary customers soon. | D.It’ll ease his hometown’s heavy traffic. |
A.Being good is different from being great. | B.He who makes no mistakes makes nothing. |
C.One cannot succeed without time and practice. | D.Luck, talent and friendship help to achieve success. |
【推荐2】Far away, in a forest outside Oslo, Norway, 1,000 newly planted trees are growing. Ninety-nine years from now, the full-size trees will be cut down and used to make paper. The paper will be used to make copies of an unusual book. The book will have 100 authors finish it over the course of 100 years. Exactly what's inside the book will remain secret until 2114.
The forest and the book are part of the Future Library. Scottish artist Katie Paterson began the project last year. “We're asking one writer a year to give a story,” Paterson said. The subject, the style, the kind, and the length are up to the author. However, Paterson has two important rules. The first is that each author has one year to write the story. The second is that they mustn't publish it in any form.
What's the point of asking authors to write stories that readers alive today will never get to enjoy? For Paterson, the Future Library is about letting people think about the future. She said, “It's about developing an artwork that's not just for now but for a future generation.”
Paterson got the idea for the project while drawing tree rings in a notebook. “I make a quick connection(关联)between the rings and paper, chapters(篇章), and a book,” she said. Paterson wondered if she could grow “a kind of future forest that would become a small library of books”.
The idea seemed so difficult that she set it aside. But a few years later, Paterson had the opportunity to take part in a programme called Slow Space. Organizers were looking for amazing projects designed to unfold(展现) over time. Paterson's was one of the three chosen programmes.
1. The trees were planted to_______.A.build a future library | B.make a book in the future |
C.help protect the environment | D.encourage people to write stories |
A.It will have 100 stories. | B.It will not be published. |
C.No one is allowed to copy it. | D.Its stories are only about the future. |
A.Why Paterson started the project. |
B.The importance of Paterson's project. |
C.What the Future Library will be used for. |
D.How Paterson got the idea for the project. |
A.difficult | B.useless | C.wonderful | D.strange |
【推荐3】Diamonds have long been one of the nature’s most valuable creations. Since the dawn of humanity, their beauty, strength and resilience have attracted many people. Their creation normally takes billions of years, huge pressure and extremely hot temperatures.
But one international team of scientists is defying nature — successfully producing the beautiful mineral in a laboratory at room temperature, and within only minutes. Scientists at the Australian National University(ANU), RMIT University, the University of Sydney and Oak Ridge National Laboratory, published their new findings in the journal Small.
Co-authors announced that they used high pressure “equivalent of 640 African elephants on the tip of one ballet shoe” to create two types of diamonds: the kind found on an engagement ring and Lonsdaleite, a type of diamond found in nature at the site of meteorite impacts.
Laboratories have produced diamonds since 1954. The jewels are usually created by subjecting carbon to intense pressure and heat. Now, for the first time, the dazzling mineral is being made at room temperature.
“Natural diamonds are usually formed over billions of years, about 150 kilometers deep in the Earth where there are high pressures and temperatures above 1,000 degrees Celsius,” Jodie Bradby, an ANU physics professor and co-lead researcher, stated in an ANU press release.
“The twist in the story is how we apply the pressure,” she continued. “As well as very high pressures, we allow the carbon to also experience something called ‘shear’ — which is like a twisting or sliding force. We think this allows the carbon atoms to move into place and form Lonsdaleite and regular diamond.”
Using advanced techniques, Dougal McCulloch, a physics professor at RMIT who also co-led the research, and his team captured slices from the samples to better understand both types of diamonds.
“Seeing these little ‘rivers’ of Lonsdaleite and regular diamonds for the first time was just amazing and really helps us understand how they might form,” stated McCulloch.
1. What can be learned about diamonds?A.Two types of them alone exist in nature. | B.640 African elephants equal a diamond. |
C.Everyone dreams about possessing them. | D.They are considered a masterpiece of nature. |
A.Rejecting. | B.Resisting. | C.Challenging. | D.Copying. |
A.Time. | B.Pressure. | C.Temperature. | D.Depth. |
A.It is surprising to see so many diamonds at a time. |
B.Diamonds can be made without any natural force. |
C.Diamonds can be produced more than people wish. |
D.How diamonds formed exactly was uncertain before. |
【推荐1】Podcasts recommended by Reader's Digest
The Last Days Of Vincent Van Gogh
The bright, sunny colors of Dutch painter Vincent Van Gogh's canvases may cover his tragic ending. But his last years and final days would also see him create much of the dramatic and amazing art that made him a legend.
I Will Teach You A Language
Learning a new language? Get your language learning questions answered by Oily Richards, who speaks 8 languages. Whatever is holding you back on the path to fluency, tune in twice a week to get your regular language learning tips and motivation.
Unsung Science
TV presenter David Pogue, a six-time Emmy winner, takes you behind the scenes into the worlds of the people who have made great achievements in science, technology, transport, food and health - who reveal their first inspirations, journeys and the times they almost gave up.
What Happened To You?
Oprah Winfrey and renowned brain expert Dr. Bruce Perry discuss the impact of our childhoods and how healing should begin with the way we phrase our questions. Rather than asking “What's wrong with you?", try "What happened to you?”
How to get podcasts(播客)?
To listen on the web: In a search engine, look them up and click on the play button.
To download: Download an app such as Podcatchers or iTunes and simply search by title.
To listen to RD talks: Go to www.rdasia.com/podcasts and click on the play button.
1. Who created a podcast for language learners?
A.Dr. Bruce Perry. | B.David Pogue. |
C.Oprah Winfrey. | D.Oily Richards. |
A.The Last Days Of Vincent Van Gogh |
B.I Will Teach You A Language |
C.Unsung Science |
D.What Happened To You? |
A.By talking to experts. | B.By referring to the web. |
C.By watching TV. | D.By reading a paper magazine. |
Today is the beginning of the next stage in your life. We head off to your new home at Stanford. Where do I start in telling you how proud I feel to be called Mummy by you? We've laughed at how you burst into this world with a scowl on your face, how determined you have always been right from feeding yourself to making big decisions for your life. There were days during your illness that I wasn't sure you had the will to make it. Telling you that you needed to want to get better was the hardest and yet the greatest day. From that day you took responsibility and decided you wanted to beat anorexia (厌食症).
I don't think I've ever felt so proud of you as when you came home to say that you wanted to go to West Africa between school and university. You chose to go alone, and to raise the money yourself.You have such strength of character and determination. It is at times hard to believe that you are only 18. You experienced something in that month that few dare experience in a lifetime.
So, Viv, here are my words of wisdom to you as you start your next big adventure. The world is a beautiful place but often a few things can make it seem difficult. God's temple is made of love. It's man's temple that is built of stones. Open your heart to goodness and never ever let negative people or thoughts take hold of you. As Minor Myers put it, “Go into the world and do well. But more importantly, go into the world and do good.”
It is true that with every passing day, I will grow older and weaker. A day may come when I will become forgetful. But even then, you with your bright smile, will light up my heart.
Your
Alo
1. What can be learned from the first paragraph?A.Viv was once a trouble maker. |
B.Viv is a freshman in Stanford. |
C.Viv relies on her parents a lot. |
D.Viv was defeated by anorexia. |
A.To do what others dare not. |
B.To show her determination. |
C.To get money for school fees. |
D.To go on an adventure by herself. |
A.To be a positive and kind person. |
B.To avoid the negative part of life. |
C.To be cautious of coldhearted people. |
D.To explore the beauty of the world. |
A.Amused and thankful. |
B.Pleased and satisfied. |
C.Cheerful and relieved. |
D.Concerned and anxious. |
Six months’ preparation in Denmark: Africa studies, team work combined with social work with risk group teenagers.
Six months’ community work in Malawi in People to People Projects: Child Aid, HIV/AIDS Fights and Teacher Training.
Qualifications: 18 years old, hard working and social engagement
Please contact us by e-mail: takeaction@ betterworld.com
Part-time Work with Exchange Students
YOUTH International is a non-profit high school foreign exchange student organization. We welcome teenagers from over 80 countries worldwide and provide host families. The Community Representative is a part-time position designed for people with a strong desire to do something rewarding in the community and earn some extra money.
Applicants best suited for this work should enjoy teenagers, have a strong interest in cross-cultural communication and feel comfortable networking. Full training and support will be provided through branch offices throughout the US. Positions available in most states.
If interested, please e-mail staff@youth.org or call 888-123-9872.
International Summer Job
Hi, I’m an ESL student in China. I’m 20, quiet and polite, and I speak reasonable English. I’m looking for a summer job in an English-speaking country. I can teach Chinese or do house and garden work and cook Chinese dishes. Can anybody offer me a job? I don’t need to earn much, just enough in two months(July-August)to pay for my return ticket to China. My goal is to improve my English and see a bit more of the world.
My e-mail is: ram3462@hotmail.com.
Call for Native Speaker of English
I am looking for native speakers of English to join in an experiment. This experiment is carried out over the Internet. You don’t need any specific knowledge other than understanding and speaking English at a native level. The first task will take you around 15 minutes. After this task, you can decide whether you want to continue the experiment. The tasks involve reading texts and designing questions and answers.
If you are willing to help me, then please e-mail us: club3804@hotmail.com.
1. Where will Jack, a volunteer, receive the training before he is sent to work in Malawi?A.In some local offices in the US. | B.In an ESL organization in China. |
C.In an exchange student centre in Africa. | D.In a preparation program in Denmark. |
A.One who has a strong desire to improve his or her English. |
B.One who hopes to take action in fighting against diseases. |
C.One who enjoys working with teenagers from different countries. |
D.One who wants to earn some pocket money in the program. |
A.To provide language exercises. | B.To do some housework. |
C.To offer advice on Child Aid. | D.To interview people online. |