1 . What’s the first thing you remember doing? It could be playing with your friends at school, or going to a birthday party and eating amazing cake.
It’s a strange concept to grasp, but according to research, about four out of ten of us invent our first childhood memory. Rather than having experienced something, we could have fabricated a fake memory from videos or photos we’ve seen. We could have been influenced by a story recounted to us that spurs our minds on to adopt someone else’s memory as our own.
So why do we create fake memories? Some experts believe that there is a clear desire for a sense of self and having a cohesive (连贯的) story of our existence.
So, the next time someone says they have a clear memory from when they were one or even before just remember that while it could be true, there’s a chance they just invented it at some point in their lives.
| A．But why don’t we have clear memories from that age? |
| B．It happens to everyone no matter how educated he or she is. |
| C．This is possibly due to the rapid creation of brain cells in our early years. |
| D．We often talk about these memories with our families as if it were what happened yesterday. |
| E．Creating memories can fill in the gaps giving us a more complete structure for our early lives. |
| F．Most of us have a treasured early memory of our childhood, but can we really believe those vivid memories? |
| G．What it means is that memories of our younger years, especially before the age of two, may be inaccurate, or entirely false. |
2 . Beauty and Well-being Benefits of Handed Massage Guns
What are they?Originally beloved by athletes, massage guns are gaining popularity as a stress or pain-relieving tool. A quick and convenient alternative to a traditional deep-tissue massage, many offer detachable heads to target calves, ankles or the top s of shoulders, available in a range of sizes and speeds.
What are the supposed benefits?If you often find yourself aching after the gym or a long day of work, a massage gun may well be your new best friend. Sending pulses at a steady frequency that is difficult to achieve manually, they allow you to target a specific area of tightness, loosening lactic acid buildup muscle and allowing for greater mobility and muscle flexibility. Even if you’re not so physically active, a couple of minutes of regular massaging can do wonders for your complexion.
Through vibration frequency, the movement of a massage gun will encourage blood and lymphatic (淋巴的) circulation, giving a new vibrancy and comfort to skin as toxins (毒素) drain out and oxygen flows through. If you’ve been feeling heavy or struggling to unwind, massage guns are also thought to be a useful tool in the rehabilitation (康复) of depression, anxiety, digestive disorders and stress-related insomnia.
Do they actually work?Once you get used to the quiet humming noise, the swift, targeted relief a gun can offer more than justifies the initial spend. Leading the market is the Lola, a lightweight handheld gun in a sleek matte finish with four speeds that tucks easily into the pocket of an overnight bag. The key is to operate within your own comfort-be sure to fit the adjustable heads firmly and work through the speed functions slowly, building up to higher pressures only if necessary. While concerns about suitability for specific conditions or injuries should always be discussed with a doctor, the massage gun is certainly proof that both internal and external beauty can be achieved by listening that little bit closer to our bodies.
1. What is not the supposed benefits of handed massage guns?| A．To target a specific area of tightness. |
| B．To allow for greater mobility and muscle flexibility. |
| C．To encourage blood and lymphatic circulation. |
| D．To help lactic acid build up in muscles. |
| A．Many offer fixed heads to target diverse muscles. |
| B．The initial spend is too high to be justified by their functions. |
| C．They can help rehabilitate people with depression and anxiety. |
| D．Their suitability for specific conditions and injuries is certain. |
| A．To show the beauty and well-being benefits of handed massage guns. |
| B．To inform us the availability of different sizes of handed massage guns. |
| C．To share with us the popularity of handed massage guns among athletes. |
| D．To compare handed massage guns with doctors on suitability for injuries. |
Balancing Trees and CO2
Tree planting used to be regarded as an effective means of reducing climate change. Perhaps it’s time for us to rethink this practice. Trees pull CO2 from the air. This effectively removes CO2 from the atmosphere. But trees only hold onto CO2 as long as they’re alive. Once they die, trees decay (腐烂) and release that CO2 back into the atmosphere.
Recent studies have found that trees around the world are growing faster than ever. The rise of CO2, mainly due to burning fossil fuels, is probably driving that rapid growth, said Roel Brienen, a forest ecologist at the University of Leeds, UK. High levels of CO2 are increasing temperatures, which in turn speeds tree growth in those areas, he added.
The faster trees grow, the faster they store carbon. It seems like good news. However, it is known that fast-growing tree species, in general, live shorter lives than their slow-growing relatives.
In order to see whether the growth-lifespan trade-off (生长与寿命之间的权衡) is a universal phenomenon, Brienen and his colleagues analyzed over 210,000 individual tree ring records of 110 tree species from more than 79,000 sites worldwide. They found that, in almost all habitats and all sites, faster-growing tree species died younger than slow-growing species, and even within a species, the trade-off between growth and life span held strong.
The team also created a computer program that modeled a forest and tweaked (微量调整) the growth of the trees in this model. Early on, it showed that “the forest could hold more carbon as the trees grew faster”, Brienen reported. But after 20 years, these trees started dying and losing this extra carbon again. “We must understand that the only solution to bringing down CO2 levels is to stop emitting (排放) it into the atmosphere,” said Brienen.
1. What does “this practice” in Para.1 refer to?2. Why are trees around the world growing faster than ever?
3. Read the following statement, underline the false part of it and explain the reason. The team has found that the faster trees grow, the faster they store CO2, and the longer lives they live.
4. Please briefly present what you can do in daily life to reduce the emission of CO2.（about 40 words）
4 . A video circulated on social media earlier this year, showing a tourist opening the door of a vehicle, reaching out an arm and attempting to stroke a passing lion. The lion shrugged the tourist off, but it could have easily gone horribly wrong.
Reckless behaviour around wildlife risks the safety of both people and animals. People risk being attacked, mauled (撕咬) and possibly killed, while animals can be harmed, removed or even put down, regardless of whether they were only defending themselves. Animal attacks can also cast a destination in a negative light, causing temporary closures or scaring off visitors. All just so someone could boast that they had stroked a lion or captured a moment on a camera phone.
“Tourists are getting more and more reckless around wildlife and the source of the problem is social media.” says wildlife photographer Anette Mosshachers. “People risking their lives or doing stupid things with wildlife are after ‘likes’ and followers, something to show off on social media,” says Mossbacher. “The greater the risk, the more ‘likes’ they get. With some clients, it seems like a sickness or addiction.”
Yet social media is not entirely to blame. People have always taken risks for an experience. Foolish behavior and a tendency to get cocky around dangerous animals must have been around since the dawn of humanity. A hunger for attention online might drive some of the current madness, but some individuals might be trying to recreate a piece of the action they have seen on television. Perhaps the adrenaline (肾上腺激素) rush when close to wild animals causes a disappearance of common sense.
“There’s a worrying lack of awareness that animals several times our size, weight, speed and strength can easily hurt us,” says wildlife photographer David Lloyd. “I don’t think parks are doing enough to raise awareness. Tourists need to know how their presence can affect wildlife. A good example is cheetahs (猎豹) on vehicle rooftops. It may be a thrill for the bystanders, but the consequences if a mother cheetah falls off would be severe. She would no longer be able to hunt, so her cubs could easily starve.”
“People aren’t getting the education about why they need to stay away from wildlife, including avoiding diseases, keeping people secure and letting wildlife be wild,” says Philip Muruthi, vice president of species conservation and science for the African Wildlife Foundation. “We need to educate tourists through signs, pamphlets and frontline drivers. We should stick to guidelines, and there needs to be enforcement through the law.”
1. What can we learn about reckless behaviour around wildlife?| A．It may get animals killed for defending themselves. |
| B．It may bring more profits to a tourist destination. |
| C．It enables tourists to get intimate with animals. |
| D．It harms tourists more than animals. |
| A．sympathetic | B．disapproving | C．indifferent | D．doubtful |
| A．over-sensitive. | B．over-confident | C．over-frightened. | D．over-shocked. |
| A．Punishment rather than education can stop people taking silly risks around wildlife. |
| B．Parks are expected to take more responsibilities for educating tourists. |
| C．More regulation of the tourist industry is the key to raising tourists’ awareness. |
| D．Raising tourists’ awareness means stressing the danger of animals to them. |
5 . Small batteries are big problems, but nobody really pays attention to where they end up. Researchers at the Cellulose & Wood Materials Laboratory are working to address this problem. Their new research paper describes a water-activated paper battery developed from environmentally friendly materials that could eventually present a sustainable alternative to the more harmful batteries common in low-power devices.
The paper battery has the same key components as standard batteries but packages them differently. Like a typical chemical battery, it has a positively charged side called a cathode, a negatively charged side called an anode, and a conductive material called an electrolyte (电解质) between the two. A traditional battery’s components are enclosed in plastic and metal; in the new battery, the anode and cathode are inks printed onto the front and back of a piece of paper. That paper is filled with salt, which dissolves (溶解) when the paper is dampened with water. The resulting saltwater solution acts as the electrolyte.
Sustainable materials were a precondition for the researchers, who considered only safe and plentiful ingredients to create their device. “We were fairly confident that we would have something that would work in the end, but developing these materials and ink systems is challenging,” says Gustav Nyström, senior author of the study.
After trying hundreds of formulations for the battery components, the researchers settled on a graphite ink to make the cathode, a zinc ink for the anode, and salt-filled paper to create the electrolyte.
When the paper is dry, the battery is shelf-stable. Add just a couple of drops of water, however, and the salt dissolves, allowing electrons to flow. Once the paper is dampened, the battery activates within 20 seconds. The new battery’s operating performance declines as the paper dries. When the scientists re-wet the paper during testing, the battery regained functionality and lasted an hour before beginning to dry out again.
Although the researchers demonstrated that their battery could power an alarm clock, the paper batteries are unlikely to replace standard ones on store shelves. Nyström envisions a future where these paper batteries could make their way into products within the next two to five years. “The performance that you see on this device, I think, is enough for a lot of other applications already,” he says. It is mostly a matter of increasing production and integrating the batteries into systems such as diagnostic tests and environmental sensors.”
1. How is the paper battery similar to the standard battery?| A．The key components are environmentally friendly. |
| B．They are both packaged in plastic and metal. |
| C．They both have two charged sides and an electrolyte. |
| D．Both batteries can operate for only an hour. |
| A．Heating the salt | B．Charging the electrons |
| C．Drying out the battery | D．Wetting the paper |
| A．major technological breakthrough will be made in the near future |
| B．all home appliances will be powered by paper batteries |
| C．the future for a wide application of paper batteries is not far off |
| D．paper batteries will have longer shelf life than traditional ones |
6 . The Land Under the Sea
Ten thousand years ago, as the last ice age ended, sea levels around the world were far lower than they are today. Much of the land under both the North Sea to the east of Britain and the English Channel which now separates France and Britain was part of a huge region of forests and grassy plains. Then the climate gradually became warmer and the water trapped in large masses of ice was released.
Now the development of advanced sonar (声纳) technology, known as bathymetry, is making it possible to study this flooded landscape in extraordinary detail. A special echo (回声) sounder is fixed to the bottom of a survey ship and it makes wide sweeps across the seabed. While previous technology has only been able to produce two-dimensional images, bathymetry can now use computers, satellite-positioning equipment and special software to create accurate and remarkably detailed maps. For the first time, an ancient riverbed jumps out of the three-dimensional image. The site of pre-historic settlements can now be pinpointed.
According to expert Linda Andrews, this technological development is of huge significance. “We now have the ability to map the seabed as accurately as we can map dry land,” she says.
Once bathymetric techniques have identified sites where people might have built their homes and villages, divers can be sent down to investigate further. Robot submarines (潜艇) can also be used, and researchers hope they will find stone tools and wood from houses as proof of human activity. The idea shared by many people in Britain of their country as a natural island kingdom will be challenged by the findings: Britain has been inhabited for about 500,000 years and much of this time it has been linked on and off to continental Europe. It remains to be seen how far this new awareness is taken on board, however.
In fact, the use of bathymetry will not be limited to the study of lost landscapes and ancient settlements. It will also be vital in finding ships that have been destroyed in accidents. In addition, commercial applications are a real possibility. Aggregates (骨材) for the construction industry are becoming increasingly expensive, and bathymetry can be used to identify suitable sites for digging for this material. Mapping the seabed will also identify places where rare plants and shellfish are living. Digging at such sites should be prevented, either to work for a profit or to make deeper waterways for massive container ships.
1. How does bathymetry work?| A．It has an echo sounder placed on the seabed. |
| B．It makes use of a number of different devices. |
| C．It produces two-dimensional images of the sea floor. |
| D．It bases its calculations on the location of construction sites. |
| A．attract investment in the research under the sea |
| B．inspire people to take an interest in modern technology |
| C．adapt the attitudes of the British to their country’s history |
| D．receive confirmation of rebuilding ancient man-made objects |
| A．identify new species of plants and animals | B．provide the precise location of sunken ships |
| C．evaluate the cost of seeking certain resources | D．promote the development of deeper waterways |
7 . When you get in a car, you expect it will have functioning brakes. When you pick up medicine at the drugstore, you expect it won’t be polluted. But it wasn’t always like this. The safety of these products was terrible when they first came to market. It took much research and regulation to figure out how users can enjoy the benefits of these products without getting harmed.
Social media risks are everywhere. The dangers that algorithms designed to maximize attention represent to teens have become impossible to ignore. Other product design elements, often called “dark patterns,” designed to keep people using for longer, also appear to tip young users into social media overuse.
Despite these efforts, two things are clear. First, online safety problems are leading to real, offline suffering. Second, social media companies can’t, or won’t, solve these safety problems on their own.
| A．And those problems aren’t going away. |
| B．The current issues aren’t really about offline suffering. |
| C．Platforms already have systems to remove violent or harmful content. |
| D．Similarly, social media needs product safety standards to keep users safe. |
| E．It’s time we should require social media to take safety seriously, for everyone’s sake. |
| F．Internet platforms, however, have shifted blame on the consumers whenever criticized. |
| G．Some authorities are taking steps to hold social media platforms accountable for the content. |
8 . Researchers hope brain implants will one day help people with aphasia(失语症) to get their voice back—and maybe even to sing. Now, for the first time, scientists have demonstrated that the brain’s electrical activity can be decoded and used to reconstruct music.
A new study analyzed data from 29 people monitored for epileptic seizures(癫痫发作), using electrodes(电极) on the surface of their brain. As participants listened to a selected song, electrodes captured brain activity related to musical elements, such as tone, rhythm, and lyrics. Employing machine learning, Robert Knight from UC Berkeley and his colleagues reconstructed what the participants were hearing and published their study results. The paper is the first to suggest that scientists can “listen secretly to” the brain to synthesize(合成) music.
To turn brain activity data into musical sound, researchers trained an artificial intelligence (AI)model to decode data captured from thousands of electrodes that were attached to the participants as they listened to the song while undergoing surgery. Once the brain data were fed through the model, the music returned. The model also revealed some brain parts responding to different musical features of the song.
Although the findings focused on music, the researchers expect their results to be most useful for translating brain waves into human speech. Ludovic Bellier, the study’s lead author, explains that speech, regardless of language, has small melodic differences—tempo, stress, accents, and intonation—known as prosody(韵律). These elements carry meaning that we can’t communicate with words alone. He hopes the model will improve brain-computer interfaces (BCI), assistive devices that record speech-associated brain waves and use algorithms to reconstruct intended messages. This technology, still in its infancy, could help people who have lost the ability to speak because of aphasia.
Future research should investigate whether these models can be expanded from music that participants have heard to imagined internal speech. If a brain-computer interface could recreate someone’s speech with the prosody and emotional weight found in music, it could offer a richer communication experience beyond mere words.
Several barriers remain before we can put this technology in the hands—or brains— of patients. The current model relies on surgical implants. As recording techniques improve, the hope is to gather data non-invasively, possibly using ultrasensitive electrodes. However, under current technologies, this approach might result in a lower speed of decoding into natural speech. The researchers also hope to improve the playback clarity by packing the electrodes closer together on the brain’s surface, enabling an even more detailed look at the electrical symphony the brain produces.
| A．Electrodes can analyze musical elements. |
| B．The decoding of brain data helps recreate music. |
| C．Machine learning greatly enhances brain activity. |
| D．The AI model monitors music-responsive brain regions. |
| A．The prosody of speech. | B．The collection of brain waves. |
| C．The emotional weight of music. | D．The reconstruction of information. |
| A．Unlocking the Secrets of Melodic Mind | B．Brain Symphony: Synthesized Human Speech |
| C．BCI Brings Hope to People with Aphasia | D．Remarkable Journey: Decoding Brain with AI |
As a kid, I dreamed of becoming a marine biologist and I lived out this fantasy by setting up aquariums(鱼缸) at home. Then, at 20, I was introduced to photographer David Liittschwager, who hired me to help him with a magazine assignment on marine life.
David’s assignment was to document the amazing biodiversity found in the ocean. My role was to collect species for him to photograph. Every night, I would cast a floating lamp. Like moths drawn to a flame, mysterious creatures would emerge from the depths in search of this light. I’d then set up aquariums to house them as they waited for David to take their shot.
Those evenings made me feel as if I were on another planet. I had never imagined such strange life-forms could exist in our oceans. But I didn’t grasp the true magic of what was in front of me until I saw the photographs David took.
The biggest surprise was his image of a baby flounder. I caught this fish by accident. Only later did I notice its two tiny eyeballs staring back at me. But David’s photograph of this flounder revealed a universe of detail that even my eager eyes had missed. His macro lens magnified its ribs. The lightning-fast exposure froze its motion. A precisely aimed light released the rainbow hidden in its skin. And the black background removed all distractions to focus our attention on the quiet beauty at hand.
Years after that project, I was snorkeling(潜水) on a shallow reef. Out of the darkness, another baby flounder emerged and settled on my mask. This time I knew what to look for. Before working for David, I had assumed the goal of photography was simply to reproduce an observation so that others could share the same experience. It had never occurred to me that photography could expand our visual perception and therefore teach us to see the world anew.
2. Why was David’s image of a baby flounder the biggest surprise to the author?
3. Please decide which part is false in the following statement, then underline it and explain why.
▶Encountering a baby flounder while snorkeling deepened the author’s understanding that photography could reproduce an observation.
4. What can help you see the world anew?(In about 40 words)
10 . “Assume you are wrong.” The advice came from Brian Nosek, a psychology professor, who was offering a strategy for pursuing better science.
To understand the context for Nosek’s advice, we need to take a step back to the nature of science itself. You see despite what many of us learned in elementary school, there is no single scientific method. Just as scientific theories become elaborated and change, so do scientific methods.
But methodological reform hasn’t come without some fretting and friction. Nasty things have been said by and about methodological reformers. Few people like having the value of their life’s work called into question. On the other side, few people are good at voicing criticisms in kind and constructive ways. So, part of the challenge is figuring out how to bake critical self-reflection into the culture of science itself, so it unfolds as a welcome and integrated part of the process, and not an embarrassing sideshow.
What Nosek recommended was a strategy for changing the way we offer and respond to critique. Assuming you are right might be a motivating force, sustaining the enormous effort that conducting scientific work requires. But it also makes it easy to interpret criticisms as personal attacks. Beginning, instead, from the assumption you are wrong, a criticism is easier to interpret as a constructive suggestion for how to be less wrong — a goal that your critic presumably shares.
One worry about this approach is that it could be demoralizing for scientists. Striving to be less wrong might be a less effective motivation than the promise of being right. Another concern is that a strategy that works well within science could backfire when it comes to communicating science with the public. Without an appreciation for how science works, it’s easy to take uncertainty or disagreements as marks against science, when in fact they reflect some of the very features of science that make it our best approach to reaching reliable conclusions about the world. Science is reliable because it responds to evidence: as the quantity and quality of our evidence improves, our theories can and should change, too.
Despite these worries, I like Nosek’s suggestion because it builds in cognitive humility along with a sense that we can do better. It also builds in a sense of community — we’re all in the same boat when it comes to falling short of getting things right.
Unfortunately, this still leaves us with an untested hypothesis (假说): that assuming one is wrong can change community norms for the better, and ultimately support better science and even, perhaps, better decisions in life. I don’t know if that’s true. In fact, I should probably assume that it’s wrong. But with the benefit of the scientific community and our best methodological tools, I hope we can get it less wrong, together.
1. What can we learn from Paragraph 3?| A．Reformers tend to devalue researchers’ work. |
| B．Scientists are unwilling to express kind criticisms. |
| C．People hold wrong assumptions about the culture of science. |
| D．The scientific community should practice critical self-reflection. |
| A．the enormous efforts of scientists at work | B．the reliability of potential research results |
| C．the public’s passion for scientific findings | D．the improvement in the quality of evidence |
| A．discouraging | B．ineffective | C．unfair | D．misleading |
| A．doubtful but sincere | B．disapproving but soft |
| C．authoritative and direct | D．reflective and humorous |
