1 . According to a new study， teens focus on rewards and have a hard time learning to avoid punishment or consider the consequences of alternative actions.
University College London researchers compared how teens and adults learn to make choices based on the available information. They tracked the way in which 18 volunteers aged 12-17 and 20 volunteers aged 18-32 completed tasks in which they had to choose between abstract symbols.
Each symbol was consistently associated with a fixed chance of a reward, punishment, or no outcome. As the trial progressed ， participants learned which symbols were likely to lead to each outcome and adjusted their choices accordingly. Teens and adults were equally good at learning to choose symbols associated with reward， but teens were less good at avoiding symbols associated with punishment. Adults also performed significantly better when they were told what would have happened if they had chosen the other symbol after each choice， while teens did not appear to take this information into account.
“From this experimental lab study we can draw conclusions about learning during the teen years. We find that teens and adults learn in different ways， something that might be relevant to education," said lead author Dr. Stefano Palminteri. " Unlike adults, teens are not so good at learning to adjust their choices to avoid punishment. This suggests that incentive systems based on reward rather than punishment may be more effective for this age group. Additionally, we found that teens did not learn from being shown what would have happened if they made alternative choices."
To interpret the results, the researchers developed computational models of learning and ran simulations （模拟）applying them to the results of the study. The first was a simple model, one that learned from rewards, and the second model added to this by also learning from the option that was not chosen. The third model was the most complete and took the full context into account, with equal weight given to punishment avoidance and reward seeking. For example, obtaining no outcome rather than losing a point is weighted equally to gaining a point rather than having no outcome.
Comparing the experimental data to the models, the team found that teens" behavior followed the simple reward-based model while adults" behavior matched the complete, contextual model. “Our study suggests that teens are more receptive to rewards than they are to punishments of equal value, ” said senior author Dr. Sarah-Jayne Blakemore. “As a result, it may be useful for parents and teachers to frame things in more positive terms.”
1. It can be learned from the study that .| A．adults made choices faster than teens |
| B．adults understood rewards better than teens |
| C．teens reacted better to reward than punishment |
| D．teens were aware of the outcome of each choice |
| A．They reflected people’s strong desire for punishment avoidance. |
| B．They gave circumstances different degrees of consideration. |
| C．They paid equal attention to reward and punishment. |
| D．They shaped the behavior of people at different ages. |
| A．accustomed | B．opposed |
| C．sympathetic | D．responsive |
| A．“If you insist on doing things in this way， you will lose ten points. " |
| B．“If we had talked about this earlier， you wouldn’t have made the mistake. " |
| C．“ If you hand in your assignment ahead of time， you will get an extra bonus." |
| D．“If you want to approach a problem differently ， you can talk to your parents. " |
2 . In the magnificent range of mountains of northern California, 42 radio telescopes point towards the stars, scanning for signs of life. The Search for Extraterrestrial Intelligence （SETI） Institute has been listening for a signal here since it was founded in 1984. Jill Tarter, its co — founder, says the programmed aim is not just to communicate with remote civilisations. It is also to remind human beings of its own modest, fragile （脆弱的）place in the universe. Thus, for the first time, SETI is cocking its ear towards Earth to look for a signal that can be sent into space to represent the species.
Felipe Perez Santiago, a Mexican musician and composer, has an idea of what might work.Since songs, like the human voices, are common to all languages and nations, he and Ms. Tarter have designed the “Earthling Project”-a call to people everywhere to upload extracts （精华）of song that he plans to melt into a collective human chorus. An initial composition will be launched into space this summer, recorded on a virtually indestructible disk. Future plans and dreams include an eventual landing on Mars.
Human music has been sent to the heavens in 1977. Distant beings can in theory already enjoy Peruvian panpipes, a Navajo chant, Bach, Beethoven and more. But no previous offering, and perhaps no composition undertaken anywhere, has tried to encompass the entire diversity of human song.
Mr. Santiago says he is thrilled about bringing together contributors from around the globe. Unlike other recordings sent into space, says Mr. Santiago, “Everyone's invited. You don't have to be one of the main composers of our history like Beethoven, just someone singing in their shower.” Download the “Earthling Project" app, sing up to three songs of 30 seconds each, and your voice will be sent into the sky.
1. Why does SETI look for a signal to be sent into space?| A．To stand for species on the earth. |
| B．To scan for other liveable planets. |
| C．To respond to the call of the universe. |
| D．To stress the importance of the earth. |
| A．It is a world music organization. |
| B．It intends to create a human chorus. |
| C．It tries to develop a universal language. |
| D．It aims to search for signals from space. |
| A．Include. | B．Appreciate. |
| C．Work out. | D．Relate to. |
| A．To inspire people to become composers. |
| B．To call on people to protect our planet. |
| C．To encourage people to explore space. |
| D．To invite people to join a programme. |
3 . Every year, thousands of teenagers participate in programs at their local art museums. But do any of them remember their time at museum events later in life? A new report suggests that the answer is yes – and finds that alumni (毕业生) of arts-based museum programs credit them with changing the course of their lives, even years after the experience.
The Whitney Museum of American Art, the Walker Art Center and the Museum of Contemporary Art, Los Angeles recently asked researchers to conduct a study to find out how effective their long-standing teen art programs really are. They involved over 300 former participants of four programs for teens that have been in existence since the 1990s. Alumni, whose current ages range from 18 to 36, were invited to find out how they viewed their participation years after the fact.
Among the alumni surveyed, 75 percent of alumni rated the teen program experience as the most favorable influence on their own lives, beating family, school and their neighborhoods. Nearly 55 percent thought that it was one of the most important experiences they’d ever had, regardless of age. And two-thirds said that they were often in situations where their experience in museums affected their actions or thoughts.
It turns out that participating in art programs also helps keep teens enthusiastic about arts even after they reach adulthood: 96 percent of participants had visited an art museum within the last two years, and 68 percent had visited an art museum five or more times within the last two years. Thirty-two percent of program alumni work in the arts as adults.
Though the study is the first of its kind to explore the influence of teen-specific art programs in museums, it reflects other research on the important benefits of engaging with the arts. A decade of surveys by the National Endowment for the Arts found that childhood experience with the arts is significantly associated with their income and educational attainment as adults. Other studies have linked arts education to everything from lower drop-out rates to improvement in critical (批判性的)thinking skills.
1. What does the underlined phrase “the experience” in Paragraph 1 refer to?| A．Joining in childhood art programs. |
| B．Shifting the course of children’s life. |
| C．Memorizing the time at museum events. |
| D．Conducting arts-based museum programs. |
| A．The aim of the study. |
| B．The result of the study. |
| C．The method of the study. |
| D．The process of the study. |
| A．No other studies about the benefits of arts exist. |
| B．Love for arts may keep long in kids’ whole life. |
| C．Age matters in how people view their art experiences. |
| D．Most kids participating in art programs will work in arts. |
| A．How can Art be Connected to Our Life? |
| B．Can Art Education Affect Our Income? |
| C．Should Kids Walk into Art Museums? |
| D．What Should Art Museums do for Kids? |
4 . Described as the world’s most environmentally friendly protein（蛋白质）, Solein is made by applying electricity to water to release bubbles of carbon dioxide and hydrogen. Living microbes (微生物) are then added to the liquid to feed on the carbon dioxide and hydrogen bubbles and produce the Solein, which is then dried to make the powder. It’s a chemical change process similar to beer brewing. The dried Solein has a protein content of 50 percent and looks and tastes just like wheat flour.
“It is a completely new kind of food, a new kind of protein, different to all the food on the market today in how it is produced as it does not need agriculture.” Dr Pasi Vainikka, the chief manager of Solar Foods told The Guardian. The process used to produce Solein—changing hydrogen and carbon dioxide is amazing, as the wonder food can be produced anywhere in the world. It’s also 10 time-efficient than photosynthesis (光合作用), and 10 to 100 times more environment and climate-friendly in water use than animal or plant-based food production.
“Solein also contains all the essential amino acid (氨基酸),but because it is produced using carbon and electricity, it does not require large amounts of land to produce, ” the Solar Foods website explains. “Another unique characteristic of Solein is that it is able to take carbon directly from carbon dioxide without needing a source of sugar.”
While Solar Foods does not expect Solein to challenge conventional protein production methods in the next two decades, it does expect it to become a “new harvest” for humanity, which is significant considering so far we have only relied on plants and animals for sustenance. The Helsinki-based company plans to open its first Solein factory at the end of 2021 and increase production to two billion meals per year by 2022.
1. Why is Solein described as environmentally friendly?| A．Because it is man-made by using electricity. |
| B．Because it contains all the nutrition people need. |
| C．Because it is made consuming less land and energy. |
| D．Because it is produced from water and carbon dioxide. |
| A．It’ll have a rewarding future. |
| B．It’ll reach consumers in 2020. |
| C．It’ll challenge traditional protein production. |
| D．It’ll be a complete replacement for plants and animals. |
| A．survival | B．food |
| C．material | D．support |
| A．A textbook. | B．A novel. |
| C．A magazine. | D．A brochure. |
5 . Last week, Vodafone started a test of the UK’s first full 5G service, available for use by businesses in Salford. It is part of its plan to trial the technology in seven UK cities. But what can we expect from the next generation of mobile technology?
One thing we will see in the preparation for the test is lots of tricks with the new tech. Earlier this year, operators paid almost £1.4 billion for the 5G wavelengths, and to compensate for that cash, they will need to catch the eye of consumers. In September, Vodafone used its bit of the range to display the UK’s first hologram (全息) call. The Manchester City captain Steph Houghton appeared as a hologram in Newbury. It isn’t all holograms, however: 5G will offer faster internet access. with Ofcom (英国通讯管理局) suggesting that video that takes a minute to download on 4G will be available in just a second.
The wider application is to support connected equipment on the “internet of things” -not just the internet-enabled fridge that can reorder your milk for you, but the network that will enable driverless cars and delivery drones (无人机) to communicate with each other.
Prof William Webb has warned that the technology could be a case of the emperor’s new clothes. Much of the speed increase, he claims, could have been achieved by putting more money in the 4G network, rather than a new technology. Other different voices have suggested that a focus on rolling out wider rural broadband access and addressing current network coverage would be more beneficial to the UK as a whole.
Obviously, 5G will also bring a cost to consumers. It requires a handset for both 5G and 4G, and the first 5G-enabled smart phones are expected in the coming year. With the slow pace of network rollout so far, it is likely that consumers will end up upgrading to a new 5G phone well before 5G becomes widely available in the next couple of years.
1. Why does Prof William Webb say “the technology could be a case of the emperor’s new clothes”?| A．He is in favor of the application of the new technology. |
| B．5G will bring a cost to consumers in their daily life. |
| C．5G helps people communicate better with each other. |
| D．He prefers more money to be spent on 4G networks. |
| A．making a speech to | B．trying to solve |
| C．managing to decrease | D．responding to |
| A．it’ll take several years to make 5G accessible to the public in the UK |
| B．5G service shows huge development potential and a broad market |
| C．customers are eager to use 5G smart phones instead of 4G ones |
| D．it’s probable that 5G network rollout is speeding up in Britain |
| A．Vodafone is successful in spreading the 5G service. |
| B．Steph Houghton appeared as a hologram by 4G . |
| C．The application of 5G will make life much easier. |
| D．5G phones are available in rural areas of the UK. |
6 . Dogs can’t speak, but their brains respond to spoken words. Every dog owner knows that saying “Good dog!” in a happy, high voice will make their pet joyfully wag its tail. That made scientists curious: What exactly happens in your dog’s brain when it hears praise, and is it similar to the way our own brain processes such information?
When a person gets others’ compliment, the more primitive, subcortical auditory regions (皮层下听觉区) first reacts to the intonation — the emotional force of spoken words. Next, the brain taps the more recently evolved auditory cortex (听觉皮层) to figure out the meaning of the words, which is learned.
In 2016, a team of scientists discovered that dogs’ brains, like those of humans, compute the intonation and meaning of a word separately — although dogs use their right brain to do so, whereas we use our left one. Still, a puzzle remained: Do their brains go through the same steps to process approval?
It’s an important question, because dogs are a speechless species, yet they respond correctly to our words. For instance, some dogs are capable of recognising thousands of names of individual objects, and can link each name to a specific object.
When the scientists studied scans of the brains of pet dogs, they found that theirs, like ours, process the sounds of spoken words in this manner — analyzing first the emotional component with the older region of the brain, the subcortical regions, and then the words’ meaning with the newer part, the cortex.
See why dogs are so successful at partnering with us? Dogs and humans last shared a common ancestor some 100 million years ago, so it’s likely that our brains respond to sounds in a similar way. As domesticated animals that have evolved alongside humans for the past 10,000 years, dogs make special use of it to process human emotions. You know, what we say really matters to dogs!
1. Which of the following can replace the underlined word “compliment”?| A．Reply. | B．Praise. | C．Warning. | D．Advice. |
| A．Linking it to an object. | B．Analyzing the emotion. |
| C．Working out its meaning. | D．Tapping the auditory cortex. |
| A．By comparing opinions. | B．By raising examples. |
| C．By providing answers to questions. | D．By analyzing causes and effects. |
| A．Dogs—good listeners |
| B．Dogs—perfect partners |
| C．Dogs and humans share a common ancestor actually |
| D．Dogs understand spoken words the same way we do |
7 . Chemical engineers at UNSW Sydney have found a way to make "green" ammonia (氨) from air, water and renewable electricity. In a paper published in Energy and Environmental Science, the authors say that ammonia synthesis (合成法) was one of the critical achievements of the 20th century. When used in fusiliers that significantly increase the output of food crops, it enabled agriculture to sustain an ever-expanding global population.
But since the beginning of the 1900s when it was first employed, production of ammonia has been energy intensive- requiring temperatures higher than 400℃ and pressures greater than 200 atm-and all powered by fossil fuels. Dr. Emma Lovell, a co author on the paper from UNSW, says the traditional way to make ammonia- known as the Haber- Bosch process- is only cost-effective when it is produced on a massive scale due to the huge amounts of energy and expensive materials required and it produces more CO2 than any other chemical-making reaction.
“In addition to the big carbon footprint left by the Haber Bosch process, having to produce millions of tons of ammonia in centralised locations means even more energy is required to transport it around the world, not to mention the risks that go with storing large amounts of it in the one place,” says Dr. Lovell. “And we saw tragically in Beirut recently how potentially dangerous storing ammonium nitrate (硝酸盐) can be. ”
Dr. Lovell and her colleagues therefore looked at how to produce it cheaply, on a smaller scale and using renewable energy. Their new production method does not rely on fossil fuel resources, nor give of CO2.
“And once it becomes available commercially, the technology could be used to produce ammonia directly on site and on demand- farmers could even do this on location using our technology to make fertilisers- which means we negate the need for storage and transport There's a huge benefit to society as well as the health of the planet,”Dr. Lovell says.
1. What do we know about the Haver-Bosch process?| A．It does harm to the earth. |
| B．It requires green materials. |
| C．It uses less energy and is cheap. |
| D．It transforms fossil fuels into ammonia. |
| A．To remind people to protect the environment. |
| B．To give an example of the risk in ammonia storage. |
| C．To convince farmers to transport ammonia elsewhere. |
| D．To stress the choice of a proper centralised location. |
| A．Inspect. | B．Avoid. | C．Suit. | D．Accept. |
| A．To solve a problem. | B．To explain a process. |
| C．To advocate a theory. | D．To introduce a method. |
8 . As we enter into adulthood and continue to navigate everything that comes with it—work, kids, mortgage, you know—our childhood starts to feel further and further away.
Research shows that major issues in adulthood—from addiction and anxiety to compulsive overeating and relationship issues—can be better understood, and resolved, by looking back toward our childhood.
For anyone who experienced trauma (创伤) in their early years, those feelings can resurface later in life, explains Diane Young, a senior mental doctor at South Pacific Private.
“Many of us who see ourselves as ‘successful’ adults don’t relate our current behaviors and values to childhood experiences, until something becomes problematic and a professional connects it back—this can often be a light-bulb moment. Childhood is where we learn how to relate, where we develop our sense of self-worth and our interpersonal skills, so even minor forms of trauma, abuse or neglect can have an outsize influence later on in life,” Young says.
Want to know about how childhood experiences can affect your adult relationships? Here, Young helps us connect the dots between our past and our present.
How is childhood trauma defined?
“It is any experience that has a negative impact and is overwhelming to the child. It includes abandonment, neglect, divorce, death, being raised in a family with addicted parents or parents suffering with mental health issues. Some families can look perfect on the outside, but may be common with painful and destructive relational patterns that have long-lasting consequences.”
How can you recognize that you have a problem and that it’s linked to past events?
“When the behavior, substance or emotions seem to have control of you, rather than you having control of them—that’s a key sign that you have a problem. When thinking about the past, you will do everything to not feel the pain, fear or shame of those experiences. Other signs include feeling on ‘high alert’ all the time, having flashbacks, experiencing high levels of anxiety, codependent relationships and low self-esteem.”
How can someone break the habit of repeating past negative behaviors?
“Reach out for help—usually this is from a partner, friend or family member. And make the call to a mental health professional—a therapist, or an adviser. There is help available if you reach out.”
1. The passage mainly focuses on the fact that ________.| A．childhood and adulthood is closely related |
| B．childhood has slight influence upon adulthood |
| C．childhood’s negative experiences are unavoidable |
| D．adulthood has a cure for childhood’s behaviors |
| A．repeat | B．rediscover | C．reappear | D．recover |
| A．adulthood is someway a reflection of childhood |
| B．a successful person is one without problems in childhood |
| C．childhood experiences are most important throughout lifetime |
| D．adulthood experiences have little to do with childhood |
| A．Problematic families always have painful and destructive consequences on children. |
| B．South Pacific Private is an organization that deals with childhood mental health issues like trauma. |
| C．A light-bulb moment is when a person experiences most troublesome moment. |
| D．When you experience high levels of anxiety, it’s a key sign that you suffer a trauma. |
9 . Communities across the world are starting to ban facial recognition technologies. The efforts are well intentioned, but banning facial recognition is the wrong way to fight against modern surveillance （监 视）.Generally, modern mass surveillance has three broad components: identification, correlation and discrimination.
Facial recognition is a technology that can be used to identify people without their consent. Once we are identified, the data about who we are and what we are doing can be correlated with other data. This might be movement data, which can be used to "follow” us as we move throughout our day. It can be purchasing data, Internet browsing data, or data about who we talk to via email or text. It might be data about our income, ethnicity, lifestyle, profession and interests. There is an entire industry of data brokers who make a living by selling our data without our consent.
It's not just that they know who we are; it's that they correlate what they know about us to create profiles about who we are and what our interests are. The whole purpose of this process is for companies to treat individuals differently. We are shown different ads on the Internet and receive different offers for credit cards. In the future, we might be treated differently when we walk into a store, just as we currently are when we visit websites.
It doesn't matter which technology is used to identify people. What's important is that we can be consistently identified over time. We might be completely anonymous （匿名的）in a system that uses unique cookies to track us as we browse the Internet, but the same process of correlation and discrimination still occurs.
Regulating this system means addressing all three steps of the process. A ban on facial recognition won't make any difference. The problem is that we are being identified without our knowledge or consent, and society needs rules about when that is permissible.
Similarly, we need rules about how our data can be combined with other data, and then bought and sold without our knowledge or consent. The data broker industry is almost entirely unregulated now. Reasonable laws would prevent the worst of their abuses.
Finally, we need better rules about when and how it is permissible for companies to discriminate. Discrimination based on protected characteristics like race and gender is already illegal, but those rules are ineffectual against the current technologies of surveillance and control. When people can be identified and their data correlated at a speed and scale previously unseen, we need new rules.
Today, facial recognition technologies are receiving the force of the tech backlash （抵制），but focusing on them misses the point. We need to have a serious conversation about all the technologies of identification, correlation and discrimination, and decide how much we want to be spied on and what sorts of influence we want them to have over our lives.
1. According to Para. 2, with facial recognition _______.| A．one’s lifestyle changes greatly |
| B．one's email content is disclosed |
| C．one's profiles are updated in time |
| D．one's personal information is released |
| A．discrimination based on new tech surveillance is illegal |
| B．different browsing data bring in different advertisements |
| C．using mobiles anonymously keeps us from being correlated |
| D．data brokers control the current technologies of surveillance |
| A．people's concern over their safety |
| B．the nature of the surveillance society |
| C．proper regulation of mass surveillance |
| D．the importance of identification technology |
| A．call for banning facial recognition technologies |
| B．advocate the urgent need for changes in related laws |
| C．inform readers of the disadvantages of facial recognition |
| D．evaluate three broad components in modem mass surveillance |
10 . Deciding to get her money's worth out of the wedding dress on which she spent over $1,000, an Australian woman has been wearing her wedding dress, a year after her wedding.
43-year-old Tammy Hall adopted a new lifestyle-anti-consumerism (反消费主义) lifestyle in 2016, after a trip to India opened her eyes to how much we as a society consumed. She decided not to buy any new clothes or footwear for a whole year after she returned home to Adelaide, in Southern Australia, and she managed to make it.
But last year, as her wedding day approached, she faced a dilemma. She wanted to look good on the most important day of her life, but how could she spend a small fortune on the wedding dress she would only wear on that day?
"In the end I decided that if I was going to get a wedding dress, I'd make sure I could get my money's worth," Hall tells PA Real Life.
"The first time I wore it after the wedding was to vote in the Australian election in early 2019," the 43-year-old adds. "Since then, it's been to all sorts of places. Wearing it on a crowded train was especially funny, but I've worn it to do housework, to football games and to the gym."
Hall says that she has gotten some strange looks from people, but no irritating comments. It may have something to do with the fact that the dress is not the fanciest, but she believes people are just too reserved to say anything. Anyway, she doesn't really care, because she knows she has to hit the goal she has set and wearing the dress multiple times is the most reasonable way she could think of to make the most of her wedding dress.
Hall now plans to wear her wedding dress on a trip to Iceland that she and her partner will take next summer.
1. Why did Tammy Hall adopt a new lifestyle?| A．To adapt herself to Indian life. | B．To cut down her consumption. |
| C．To save money for her next trip. | D．To get prepared for her wedding. |
| A．She brought fun to people with it. | B．She tried to wear it to earn money. |
| C．She wore it repeatedly in daily life. | D．She got it exchanged again and again. |
| A．Thrilling. | B．Annoying. |
| C．Amusing. | D．Confusing. |
| A．She is determined to turn her ideas into practice. |
| B．She values her wedding dress less than her trips. |
| C．She has been struggling to make the ends meet. |
| D．She has influenced people's lifestyle widely. |
