1 . A team of researchers trained three Rhesus monkeys to associate 26 clearly different symbols consisting of numbers and selective letters with 0-25 drops of water or juice as a reward. The researchers then tested how the monkeys combined—or added—the symbols to get the reward.
Here’s how Harvard Medical School scientist Margaret Livingstone, who led the team, described the experiment: In their cages the monkeys were provided with touch screens. On one part of the screen, a symbol would appear, and on the other side two symbols inside a circle were shown. For example, the number 7 would flash on one side of the screen and the other end would have 9 and 8. If the monkeys touched the left side of the screen they would be rewarded with seven drops of water or juice; if they went for the circle, they would be rewarded with the sum of the numbers—17 in this example.
How did the monkeys get their reward in the experiment?
| A．By drawing a circle. | B．By touching a screen. |
| C．By watching videos. | D．By mixing two drinks. |
2 . Regardless of how famous they are, and despite the star treatment they receive, many celebrities make it a point to give back to charities. Some have even set up their own private foundations. Their widely publicised visits to troubled areas of the world help to raise awareness of issues such as famine and poverty. According to Jane Cooper of Unicef UK, celebrities have a unique ability to reach huge numbers of people, many of whom might not otherwise be engaged in charitable causes. She pointed out that famous faces had played a significant role in raising funds in recent years, and their energies had produced tangible results, such as enabling millions of children in poorer countries to attend school.
But in spite of these successes there is evidence to suggest that celebrity endorsement (代言) may be overrated. In a survey of members of the public to find out if celebrity involvement would encourage people to donate, researchers found that the impact was not as great as previously thought. When shown a list of well-known organisations and famous people who represent them, over half of respondents were unable to match the celebrity with the cause. What’s more, three quarters claimed that they didn’t respond to celebrity endorsement in any way. The survey also showed that a few names did stand out as being associated with particular charities. But the presence of a celebrity in a campaign, was not a significant factor when it came to a decision to donate time or money. Instead, the majority of people contribute because of personal connections in their lives and families which make a charity important to them.
In another study aimed at young people, most participants cited a compelling (无法抗拒的) mission as their main motivation to give. The second most important incentive was if a friend or peer recommended supporting a particular cause. Only two percent of respondents said they were motivated by celebrity endorsement. This seems to contradict the general assumption that teenagers are particularly influenced by famous people. One possible explanation is that there is a general fatigue (疲倦) with celebrity culture. There is also a suspicion that the stars are the one who benefit most when they offer to do charity work. Some critics have accused that celebrities might actually take attention away from issues by attracting more attention than the causes they represent.
So taking all these issues into account, is it time for charities to rethink their campaign strategies and look for alternative ways to reach new audiences? Whichever point of view you favour, there seems to be opportunities for more research into how charity campaigns might develop relationships with celebrities to maximise their potential. This in turn will open up more engagement, and better targeted campaigns-which can only benefit those who really matter — the people and animals that are in need of assistance.
1. What does the underlined word “tangible” in paragraph I probably mean?| A．Definite. | B．Complicated. | C．Limited. | D．Temporary. |
| A．they gain benefit from the charities |
| B．they are forced to finish a necessary task |
| C．they believe in the famous people they like |
| D．they are inspired by the people around them |
| A．what celebrities achieve in doing charities |
| B．How young people react to celebrity culture |
| C．why young people are hardly influenced by celebrities |
| D．who is to blame for taking attention away from charities |
| A．Objective. | B．Positive. |
| C．Negative. | D．Unclear. |
3 . I’m May. high school seniors all around the U. S. scramble (争抢) to get ready for prom. Prom. short for promenade, is a formal dance held by a high school before graduation. It's an important aspect of American school culture because it's the last high-school dance seniors will ever attend.
Prom entails (牵涉) countless traditions. First a guy must ask a girl to go to prom with him. Most guys choose to do special prom proposals in hopes of winning the girl's heart with their creativity. Then he will rent a tuxedo (燕尾服), and the girl will often get their hair, nails and makeup done professionally. That night couples will take pictures, and then they will often take a limousine (豪华轿车) to dinner and to the dance. Several reports state that parents can spend upward of $ 2,000 to give their kids the perfect prom experience.
The history of prom can be traced back to the last half of the 1800s. At that time, American universities and colleges organized dances each year for their graduating students. The purpose was not only to entertain the students but also to prepare them for the wider world by teaching them proper manners for men and women.
Later, high schools took over the prom tradition. In the 1950s, high schools began moving the dance from their gyms to beautiful hotels or country clubs to make the event even more special. Perhaps the most amazing prom took place in 1975, when Susan Ford, the daughter of the country's president, received permission to hold her high school's prom at the White House. So far, no other prom has managed to top that.
1. What does this article mainly explain about prom?| A．Its unusual atmosphere. |
| B．Its present and future. |
| C．Its educational benefits. |
| D．Its customs and roots. |
| A．Their appearance. |
| B．Their possessions. |
| C．Their transportation. |
| D．Their supervisors. |
| A．What marketing plan to use. |
| B．How to behave around others. |
| C．Which food was best to eat. |
| D．When to earn a great degree. |
| A．In an official residence. |
| B．In an international court. |
| C．In a motion picture studio. |
| D．In a modern gallery. |
4 . Future City Competition
Future City starts with a question—how can we make the world a better place? To answer it, 10th, 11th, and 12th grade students imagine, research, design, and build cities of the future that showcase their solution to a citywide sustainability issue. Past topics include Urban Agriculture, Public spaces, and Green energy while the topic of this year is Living on the Moon. Teams will design a futuristic lunar city and provide examples of how the city uses Moon resources to keep its residents safe and healthy.
Participants complete five deliverables: a 1,500-word city essay: a scale model; a project plan; a presentation video; and a virtual/online Q&A session with /judges. Regional winners represent their region at the international Finals. After completing Future City, student participants are not only prepared to be citizens of today’s complex and technical world, but also ready to become the drivers of tomorrow.
What you can learn
This flexible, cross-curricular(跨课程的) educational program gives students an opportunity to do the things that engineers do-identify problems: brainstorm ideas; design solutions; test, retest and build; and share their results. With this at its center, Future City is an engaging way to build students’ 21st century skills. Students participating in Future City also learn how their communities work and become better citizens and develop strong time management and project management skills.
What you need
Future City costs just $25 per organization—and you can register I team or 100. The price always stays the same.
We keep the price affordable so everyone can participate. Not only that, we limit the budget for materials for the City Model and City Presentation to $100 and encourage teams to use recycled materials. You don’t need expensive equipment to excel. Creativity, hard work, and commitment are all you need to get ahead.
Please note: Some regions limit the number of teams an organization can bring to the Regional Competition. Please check with your Regional Coordinator to find out the guidelines in your region.
1. In Future City Competition 2021, students need to ________.| A．complete more than five taskes |
| B．design a city with green energy |
| C．address problems on the moon |
| D．make use of lunar resources |
| A．Designing cities. |
| B．Identifying problems. |
| C．Training better citizens |
| D．Engineering design process |
| A．to be creative and devoted. |
| B．to use the recycled materials. |
| C．to buy some expensive equipment. |
| D．to ask more people to join in your team. |
5 . Independent living at home is the ideal for every aging person. But a fall or other health-threatening incidents can change everything rapidly.
The wearable “panic buttons” introduced in the late 1980s were a great advance. But they only work if people actually wear them and can reach the button in an emergency. Today there are passive wearables that automatically detect falls, and camera-based systems to monitor elder safety.
Coming from a 40-year career in the semiconductor and wireless communication field, Rafi Zack decided to find a better alternative. “People aren’t devoted to wearing small devices 24/7, and camera-based systems are an invasion（侵犯）of privacy,” he points out, “The most challenging aspect is a fall. How fast we can detect a fall matters because the medical situation worsens quickly. Sometimes people stay on the floor for a long time. We have to find out how to solve that problem.”
Zack is a co-founder, CEO and vice president of R&D at EchoCare Technologies which has developed ECHO (Elderly Care Home Observer), a cloud-connected monitor based on radar technology and machine learning.
Because radar sees through walls, one ECHO unit fixed on the ceiling or wall can monitor one person (or two persons, in a future version) in a standard-sized apartment in a senior living facility. The device detects falls, breathing difficulties, drowning in a bathtub and other dangerous events. It gives out warnings to potential health worsening conditions by continuously monitoring and analyzing the person’s location, posture（姿势）, motion and breath. EchoCare tested the device in the United States, Japan, Australia and Israel. ECHO was certified（认证）in 2019 in Japan with the most aging population in the world.
“Bathrooms were the main testing area where about 17,000 deadly accidents happen annually.” said SMK Director and Executive Vice President Tetsuo Hara. “Bathroom makers, home security service providers and nursing homes are highly interested in EchoCare’s solution.” Zack noted, “As more and more elder people live alone as a result of social distancing, there is an increased need to monitor them without the burden of wearables or privacy-invading cameras.”
1. What’s the advantage of ECHO over “panic buttons”?| A．It has camera-based systems. | B．It has been widely accepted. |
| C．It can function without cameras. | D．Its buttons can be easily reached. |
| A．It is designed to send out warnings regularly. |
| B．It monitors dangerous health-related events. |
| C．It was certified in many developed countries. |
| D．It detects more than one person at the same time. |
| A．It’ll become more popular with the elderly. |
| B．It’ll stop 17,000 deaths happening annually. |
| C．It’ll be used in nursing homes and hospitals. |
| D．It’ll help elderly people to live an active life. |
| A．An Advanced Medical Instrument |
| B．A High-tech Monitor for the Elderly |
| C．The Invention of a Healthcare Device |
| D．The Improvement of a Medical Facility |
6 . During the COVID-19 pandemic, Julia began her second year as a first grade teacher in an online classroom. One September afternoon, she received a call from and Cynthia, who was having technical difficulties with her granddaughter's tools for online learning.
Julia immediately knew something was wrong with Cynthia. The two women had spoken many times before, but Julia had never heard she sounded like this. Her words were so jumbled that Julia could barely understand her. Julia called her headmaster, Charlie, who convinced her that he would call and check on Cynthia himself.
Just like Julia, Charlie could barely understand Cynthia. He suspected she might be having a stroke (中风) — he recognized the signs from when his own father had suffered one. Charlie immediately became concerned that Cynthia's two grandchildren, ages six and eight, were probably home alone with her and scared. Charlie asked his office manager to send an ambulance to the grandmother's home.
The quick response from Julia and Charlie saved Cynthia's life. She arrived at the hospital in time to get treatment before long-term damage occurred. Thanks to an extended stay in the hospital, she has regained most of the movement throughout her body except for one hand and a region of her mouth.
“I'm proud of the people I work with, that they responded so quickly and that it did make a difference to Cynthia,” says Julia. “I am so pleased to be part of such a caring community.” But the school's crisis response is only one piece of the community's extraordinary efforts to help Cynthia and her granddaughters. Another family with young children took in the two girls.
Virtual learning has been a challenge across the country, but it's fair to say that it has helped the community grow closer. Many teachers there gave their personal phone numbers to students and families in case they needed extra help. In this case, the exchange was literally life-altering.
1. Cynthia called Julia in order to .| A．complain about the poor contents of online learning |
| B．consult about her granddaughter's academic performance |
| C．seek some help for lack of certain technical knowledge |
| D．volunteer her services as a teacher in an online classroom |
| A．brief |
| B．unclear |
| C．gentle |
| D．impolite |
| A．By recalling his own previous sufferings from the disease. |
| B．By using his professional knowledge to form the judgment. |
| C．By combining Julia's call with the granddaughters' description. |
| D．By identifying the symptoms that a stroke patient may have. |
| A．It has caused much inconvenience to parents. |
| B．It will bring about unavoidable leak of privacy. |
| C．It has provided more benefits than challenges. |
| D．It needs technical guidance to be highly effective. |
7 . The use of AI (artificial intelligence) is becoming more common in many branches of industry and online shopping. Traditional lines of work, such as goods transport and driving, are developing in a similar direction although mainly out of public view. Scientists at the University of Göttingen have now investigated how efficient (高效的) the use of AI can be in the commercial management of trucks.
“Digital applications—as well as machine leaning, a kind of AI—are increasingly applied to operations and courses in the transport area,” explains Professor Matthias Klumpp from the Faculty of Economics. “The question in the commercial area, however, is whether or not this contributes to achieving goals.”
To answer this question, the researchers compared the work efficiency of truck drivers with their main use of AI applications. Looking at trade delivery by truck, they studied three groups: the first drove completely following human decision-making models; the second used a combination of human and machine; and the third depended completely on fully automated decisions.
The researchers found that an intelligent combination of human work and decision-making abilities with AI applications promises the highest transport and driving efficiency. “On average, the second group achieved the most efficient transport trips, with the fewest interventions (干预) and off-course from the best path.” one researcher said, “Clearly, neither a completely human decision-making structure nor a fully automated driving system can promise to meet current goods transport requirements.” The scientists therefore summarized that despite the progress of AI in the field of transportation by truck, human experience and decision-making abilities will still be necessary in the longer term. However, the challenge is that a wide range of training and qualification (资格) needs will come along by working with Al applications, especially for simple goods transport activities.
1. What does Matthias Klumpp focus on?| A．The efficiency of AI. |
| B．The advantages of AI. |
| C．The problems caused by AI. |
| D．The wide applications of AI. |
| A．By providing examples. |
| B．By making comparisons. |
| C．By using different trucks. |
| D．By listing three experiments. |
| A．Al is better at making decisions. |
| B．A balance is needed between human and AI. |
| C．Human will soon be replaced by AI in driving. |
| D．Al applications meet the current requirements. |
| A．The future of transport. |
| B．Artificial intelligence as a co-driver. |
| C．Artificial intelligence-a better choice in driving. |
| D．The strengths of artificial intelligence in transport. |
8 . THE BEST BOOKS OF 2020
In our efforts to increase and spread knowledge, we highly recommend these titles issued this year.
You Never Forget Your First: A Biography of George Washington
Treating the first president’s masculinity (刚毅) as a ‘‘previous conclusion”, historian Alexis Coe explores lesser-known aspects of Washington’s life, from his interest in animal husbandry (畜牧业) to his role as a father figure.
All We Can Save: Truth, Courage, and Solutions for the Climate Crisis
Johnson, a marine biologist and the founder of Ocean Collective, and Wilkinson, the editor in chief of Project Drawdown edited appealing pieces on climate change crafted by 60 women. The collection, All We Can Save, showcases a diverse range of experts, all working to tackle climate issues in powerful ways.
Feasting Wild: In Search of the Last Untamed Food
Gina Rae La Cerva travels the globe in search of some of the planet’s last truly wild foods. Her journey takes her to a place in the Democratic Republic of Congo, where she investigates the “bush meat" trade that is common in the region’s rainforest and results in the illegal hunting of wild animals.
The Man Who Ate Too Much: The Life of James Beard
James Beard Award-winning author, John Birdsall writes this book to show a more complete picture of Beard’s life, examining the cook’s use of coded language in early cookbooks. The language itself is as rich as Beard’s fried chicken.
1. What can we learn from You Never Forget Your First?| A．Washington’s wide interests. |
| B．Washington’s masculinity as a father. |
| C．Some popular aspects of Washington’s life. |
| D．Some unfamiliar aspects of Washington’s life. |
| A．Feasting Wild. | B．All We Can Save. |
| C．You Never Forget Your First. | D．The Man Who Ate Too Much. |
| A．Foods are both mentioned. | B．Both are about traveling. |
| C．Their languages are vivid. | D．Their authors are famous. |
9 . My life as a tax-paying employed person began in middle school, when, for three whole days, I worked on an assembly (装配) line. My best friend Betsy’s father was an executive (管理者) at Hough Bakeries, which, at special festivals, made little rabbit-shaped cakes for all its stores. The plant downtown needed eight kids for temporary help, and the shift (轮班) fell over spring break, during which I had no plans. Cake? I loved cake-icing especially. I’d earn minimum wage. I’d see how a factory worked. My parents thought all of this was a grand idea for a girl like me and called Betsy’s dad with their permission.
Our roles on the line were simple: Place cakes on conveyor belt. Attach icing ears. Apply icing eyes and nose. Remove the cakes from belt; place onto trays. This was harder than it sounds. With your mind wandering, the cakes pile up. As I told my parents that first night, it was all a little more high-pressure than I’d expected. Dad smiled. This was the sort of work that made you appreciate the money you earned, he told me. And if your feet hurt or the minutes felt like hours, well then that was just motivation to keep those grades up and get that college education.
And the icing? We kids were allowed to eat as much as we wanted. By noon the first day, I could barely look at the stuff. To borrow a favorite phrase from my father: The executives weren’t born yesterday.
1. Why did the writer decide to take the job?| A．To earn lots of money. |
| B．To enjoy her spring break. |
| C．To help Betsy’s father temporarily. |
| D．To learn of the operation of the plant. |
| A．The writer found the job simple. |
| B．The job needed great concentration. |
| C．The writer quit the job the first night. |
| D．Father laughed at the writer’s performance. |
| A．Inspiring. | B．Doubtful. | C．Critical. | D．Sympathetic. |
| A．She found the icing ugly. | B．She was tired from the work. |
| C．She had eaten too much icing. | D．She felt depressed with the job. |
10 . A new product from Google may help people solve their sleep problems, but some privacy rights groups are concerned.
Google showed off its newest Nest Hub home assistant device on Tuesday. In addition to recognizing your voice, showing pictures, videos, news and weather, it can also track your sleep. The basic model costs about $100 and the sleep-tracking technology will be available for free for the rest of 2021. The sleep tracker makes Google’s product different from a similar home assistant from Amazon. If you put the Nest Hub beside your bed, it can follow how you sleep. That is because of a new computer chip called Soli, which can sense motion. Some people may like the new technology because they would not have to wear another device to bed. Some companies make products people can wear on their wrist to track their sleep.
Google says the new Nest Hub will create reports each week that show how long and how well a person sleeps. It will also show if they snore, cough or wake up often. The company said it studied 15,000 people over the course of 110,000 nights to develop the technology.
For people who want to know more about their sleep, the device sounds like a good idea. But, people who pay attention to privacy are worried what Google might do with the information it is gathering. Jeff Chester is one of those people. He is the director of the Center for Digital Democracy. “Google’s goal is to monetize every cell of your body,” he said.
Google recently bought FitBit, a company that makes a health tracker people can wear on their wrist. Some technology experts think Google may find a way for the Nest Hub to work with the FitBit.
Google says the sleep tracker has a lot of privacy protections. For example, it will only work if the user turns it on. The company said it will not use a person’s sleep information to try to sell advertising. But Chester said he is not so sure that promise will be kept.
1. Which is true about the Google’s new Nest Hub?| A．It’s the first device to track people’s sleep. |
| B．It has some functions as a home assistant. |
| C．It can be available for free for the rest of 2021. |
| D．It is the same as a health tracker produced by FitBit. |
| A．Because private information may be let out. |
| B．Because the sleeping problems can’t be solved. |
| C．Because sleep may be interrupted. |
| D．Because sleeping reports may be created each week. |
| A．Make money on. | B．Keep track of. | C．Take care of. | D．Give away. |
| A．Google’s New Soli |
| B．Google’s sleep problem solver |
| C．Google’s Newest Nest Hub |
| D．A Sleep Tracker |
