1 . Maeve Higgins once set herself a task. The Irish-born comedian wanted to see what life would be like if she stopped laughing at things that weren’t funny. Turns out it wasn’t as easy as she thought. “It was so hard,” she says. “ Laughter is a lubricant (润滑油) and is expected, and it’s really hard not to do it.”
Higgins suggests there’s something particularly special about being part of the shared experience that is live comedy — that curious magic that occurs when people come together specifically to laugh.
Comedy is more than just a pleasant way to pass an evening, humour more than something to amuse. They’re interwoven into our everyday existence. Whether you’re sharing an amusing story at a party or telling a dark joke at a funeral, humour is everywhere. But what is it for? And can humour, as comedy, change how we feel, what we think or even what we do?
As an essential part of human interaction, humour has been on the minds of thinkers for centuries. One of the most enduring theories of humour was put forward by the philosopher Thomas Hobbes. It asserts that humour appears to make fun of the weak and exert superiority. While this is clearly the function of some comedy, it’s far from a complete explanation for the overall purpose of humour.
For some comedians, it’s not just about getting laughs — it’s about changing what we think and maybe even what we do. If there’s one comic who is really typical of this, it’s Josie Long. A social justice activist and a comedian, Long has a reputation for delightful, optimistic humour and storytelling.
As her career has evolved, she has consciously put social and political topics at the heart of her act. She believes that comedians have a role to play in challenging some of the most pressing issues of the day.
British comic Stephen K Amos sells out venues seating thousands, year in, year out. Amos firmly believes that when comics consciously deal with pressing or controversial （有争议的）social issues like racism, they can reach people on a much more meaningful level than that achieved by briefly lifting someone’s mood. And while it may be difficult to quantify, he says, the social and psychological impact of comedy deserves much greater recognition.
The research backs this up. Although the role of comedy is to be entertaining first and foremost, Sharon Lockyer, a sociologist who studies humour, has identified a number of possible other functions. These include challenging stereotypes (刻板印象).
Amos’s work frequently settles the issues of race by challenging stereotypes.”I don’t do things for shock value,” he says. “ I do stuff that matters to me. In the old days it was just about doing jokes. We’ve moved on — people are talking about things that matter. ”
1. What do the first two paragraphs mainly talk about?| A．The benefits of laughing. |
| B．What a comedian’s daily work is about. |
| C．Why Maeve Higgins chose to be a comedian. |
| D．Maeve Higgins’ understanding of the appeal of comedy. |
| A．Protect the weak from the evil. |
| B．Encourage people to be stronger. |
| C．Be determined to improve oneself. |
| D．Show you are better than other people. |
| A．By gradually influencing people’s attitudes. |
| B．By urging politicians to try and solve the issues. |
| C．By quickly yet thoroughly changing people’s thinking. |
| D．By calling on the whole society to pay attention to the issues. |
| A．getting people to laugh |
| B．promoting social progress |
| C．influencing people’s ideas |
| D．making people more productive |
2 . Humans are not the only ones who underwent self-domestication. So did our close relatives, the bonobos, and the species we call our best friend. A tiny proportion of the genome differentiates dogs from wolves, and yet millions of dogs are comfortably curled up in our homes, while wolves move around at the edge of extinction.
When our research group began its work almost 20 years ago, we discovered that dogs also have extraordinary intelligence: they can read our gestures better than any other species. Wolves, in contrast, are mysterious and unpredictable. Their home is the wilderness, and that wilderness is shrinking.
But not so long ago the evolutionary race between dogs and wolves was so close, it was unclear who would win. Dogs, in fact, did not descend from wolves. Instead, dogs and wolves shared a wolflike ancestor.
Folklore supposes that humans brought wolf puppies into camp and domesticated them. Or as wolf expert David Mech wrote in 1974, “Evidently early humans tamed wolves and domesticated them, eventually selectively breeding them and finally developing the domestic dog from them.” But this story has not held up. Taming an animal occurs during its lifetime. Domestication happens over generations and involves changes to the genome.
So how did wolves turn into dogs? Back in the Ice Age, as our human populations grew more sedentary, we probably created more rubbish, which we then dumped outside our camps. These leavings would have included tempting pieces of food for hungry wolves. Not every wolf would have been able to scavenge, however. These animals would have had to be unafraid of humans, and if they displayed any aggression toward us, they would have been killed. After generations of selection for friendliness without intentional selection by humans, this special population of wolves would have begun to take on a different appearance. Coat color, ears, tails: all probably started to change.
Animals that could respond to our gestures and voices would be extremely useful as hunting partners and guards. They would have been valuable as well for their warmth and companionship, and slowly we would have allowed them to move from outside our camps to our firesides. We did not domesticate dogs. The friendliest wolves domesticated themselves.
1. What can be summarized about wolves and dogs from the first three paragraphs?| A．Wolves are smarter than dogs. |
| B．They are very much racially divided. |
| C．They are close relatives but dogs seem to be on the winning side. |
| D．Dogs have made their ways to indoor life while wolves to the wild. |
| A．diverse | B．limited |
| C．living in the same place | D．involving regular migration |
| A．Dogs evolved from wolves. |
| B．Selective breeding developed domestic dogs. |
| C．Taming and domesticating an animal are the same thing. |
| D．Friendliness as a quality translates into an evolutionary strategy. |
| A．From Wolf to Dog | B．Dog: Our Favorite Pet |
| C．An Intentional Domestication | D．A Competition Story between Wolf and Dog |
3 . Light pollution is a significant but overlooked driver of the rapid decline of insect populations, according to the most comprehensive review of the scientific evidence to date.
Artificial light at night can affect every aspect of insects' lives, the researchers said. "We strongly believe artificial light at night — in combination with habitat loss, chemical pollution.invasive (入侵的) species, and climate change — is driving insect declines, " the scientists concluded after assessing more than 150 studies.
Insect population collapses have been reported around the world, and the first global scientific review published in February, said widespread declines threatened to cause a "catastrophic collapse of nature's ecosystems".
There are thought to be millions of insect species, most still unknown to science, and about half are active at night. Those active in the day may also be disturbed by light at night when they are at rest.
The most familiar impact of light pollution is moths (飞蛾) flapping around a bulb, mistaking it for the moon. Some insects use the polarisation of light to find the water they need to breed, as light waves line up after reflecting from a smooth surface. But artificial light can scupper (使泡汤) this. Insects are important prey (猎物) for many species, but light pollution can tip the balance in favour of the predator if it traps insects around lights. Such increases in predation risk were likely to cause the rapid extinction of affected species, the researchers said.
The researchers said most human-caused threats to insects have analogues in nature, such as climate change and invasive species. But light pollution is particularly hard for insects to deal with.
However, unlike other drivers of decline, light pollution is relatively easy to prevent. Simply turning off lights that are not needed is the most obvious action, he said, while making lights motion-activated also cuts light pollution. Shading lights so only the area needed is lit up is important. It is the same with avoiding blue-white lights, which interfere with daily rhythms. LED lights also offer hope as they can be easily tuned to avoid harmful colours and flicker rates.
1. What is discussed in the passage?| A．Causes of declining insect populations. |
| B．Consequences of insect population collapses. |
| C．Light pollution: the key bringer of insect declines. |
| D．Insect declines: the driver of the collapsed ecosystem. |
| A．How light travels in space. |
| B．How light helps insects find food. |
| C．How the food chain is interrelated. |
| D．How light pollution affects insects. |
| A．Selective things. | B．Similar things. | C．Variations. | D．Limitations. |
| A．To offer solutions. |
| B．To give examples. |
| C．To make comparisons. |
| D．To present arguments. |
4 . A shocking news report has revealed that more than one in five species of maple trees faces extinction, warning that 75% of the threatened species are “geographically restricted” in their native regions.
The trees are experiencing a vast decline in habitat, due to urban development, wood harvesting and agricultural expansion. Time is running out for the world's biodiversity. Every recent survey of plants and animals in the wild points to this. This is happening nearly everywhere rarer maples exist. And because of climate change, the narrow habitats that support species at the edges of dry places and at the tops of mountains are quickly disappearing.
The trees can be found in subtropical and tropical regions, as far south as Indonesia. The only species found in the UK, the field maple is not under threat. Not only are the trees a popular attractive feature in parks and public spaces, but they are a key part of the natural ecosystem in woodlands, as well as being an important wood crop in several countries. Although the sugar maple in North America, which produces maple juice, is not endangered, two of the closest relatives to the species are endangered.
The report notes that conserving at-risk species in their natural habitat is the best conservation tactic. But collections in botanical gardens and seed banks-called "ex situ collections" can act as insurance policies against extinction. There are currently 14 species of maple, including four that are critically endangered, which are absent from these types of collections.
One species in Mexico, the Acer binzayedii, is in “desperate need of conservation"”despite only being discovered in 2017. “It is at risk from climate change in its cloud forest habitat and threatened by logging and forest fires while it is also absent from 'ex situ collections',” the report adds. The report recommends developing conservation plans, monitoring species currently not at risk to ensure populations are maintained, and adding those missing maple species to seed banks.
1. What is paragraph 2 mainly about?| A．Action to protect maple trees. | B．The dangerous situation of maple trees. |
| C．Various maple trees' habitats in the world. | D．The conditions for diversity in maple trees. |
| A．They cannot produce juice. | B．They are found in America. |
| C．They are not at risk of extinction. | D．They have two endangered relatives. |
| A．Topic. | B．Approach. | C．Result. | D．Conclusion. |
| A．To offer a proposal. | B．To recommend a product. |
| C．To introduce maple species. | D．To warn people of disasters. |
5 . Every day, it seems that some new algorithm (算法) enables computers to diagnose a disease with unprecedented accuracy, renewing predictions that computer's will soon replace doctors. What if computers could replace patients as well? If virtual humans could have replaced real people in some stages of a coronavirus vaccine trial, it could have sped development of a preventive tool and slowed down the pandemic. Similarly, potential vaccines that weren't likely to work could have been identified early, reducing trial costs and avoiding testing poor vaccine candidates on living volunteers. These are some of the benefits of “in silico medicine”, or the testing of drugs and treatments on virtual organs or body systems to predict how a real person will respond to the therapies.
The modeling begins by feeding anatomical data drawn from noninvasive (非侵入式) high- resolution imaging of an individual's actual organ into a complex mathematical model of the mechanisms that govern that organ's function. Algorithms running on powerful computers resolve the resulting equations and unknowns, generating a virtual organ that looks and behaves like the real thing.
In silico clinical trials are already underway to an extent. Heart Flow Analysis, for instance, enables clinicians to identify CAD (冠心病) based on CT images of a patient's heart. The Heart Flow system uses these images to construct a fluid dynamic model of the blood running through the coronary blood vessels, thereby identifying abnormal conditions and their severity. Without this technology, doctors would need to perform an invasive operation to decide whether and how to intervene. Experimenting on digital models of individual patients can also help personalize therapy for any number of conditions and is already used in diabetes care.
The philosophy behind in silico medicine is not new. The ability to create and simulate the performance of an object under hundreds of operating conditions has been a cornerstone of engineering for decades, such as for designing electronic circuits, airplanes and buildings. Various obstacles remain to its widespread implementation in medical research and development.
The predictive power and reliability of this technology must be confirmed, and that will require several advances. Those include the generation of high quality medical databases from a large, ethnically diverse patient base that has both women and men; improvement of mathematical models to account for the many interacting processes in the body; and further modification of Al methods that were developed mainly for computer-based speech and image recognition and need to be extended to provide biological insights.
In recent years American and European regulators have approved some commercial uses of computer-based diagnostics, but meeting regulatory demands requires considerable time and money. Creating demand for these computer-based diagnostic tools is challenging as well. In silico medicine must be able to deliver cost-effective value for patients, clinicians and health care organizations to accelerate their adoption of the technology.
1. According to the text, “in silico medicine” might help ________.| A．discover the cause of an illness |
| B．quicken the creation of new medicine |
| C．recognize the symptoms of a disease earlier |
| D．avoid including unhealthy volunteers in trials |
| A．works effectively in CAD treatment |
| B．offers personalized therapies to patients |
| C．reduces the chances of invasive operations |
| D．builds models after identifying abnormal conditions |
| A．money and time from the regulators |
| B．replacement of old mathematical models |
| C．more proof of its effectiveness and dependability |
| D．progress in speech and image recognition technology |
| A．Looking to Al to End Experimental Study |
| B．In Silico Medicine Saved Millions of Lives |
| C．Exploring the Future of Algorithm in Medicine |
| D．Virtual Patients Could Revolutionize Medicine |
6 . 
A group of researchers led by Patrick Yu-Wai-Man. an ophthalmologist (眼科医师) at Cambridge University, investigated a new genetic therapy for a form of blindness. Officially, their study was a failure. But it was also a great success, for 29 of the 37 participants reported big improvements in their vision.
The disease in question is Leber Hereditary Optic Neuropathy (LHON)(遗传性视神经病变) .A defective gene leads to sudden and rapid loss of sight, with many sufferers becoming legally blind within a year. It affects between one in 30,000 and one in 50,000 people. Men in their 20s and 30s are particularly at high risk. Since most cases are caused by a mutation (突变) in a single gene, LHON is a good candidate for gene therapy, a form of genetic engineering which aims to replace the defective gene with a working one.
With that in mind. Dr Yu-Wai-Man and his colleagues loaded up a changed virus with a corrected copy of the gene and injected it into their patients' eyes. The researchers controlled the experiment by injecting only one of each patient's eyes--chosen at random--with the virus. The other eye was given a fake injection. Using two eyes in the same patient makes for a perfect control.
The surprise came several months later. The researchers had hoped to see a big improvement in the treated eyes, compared with the untreated ones. They did not, for which the study failed in its primary objective. Instead, in more than three quarters of their patients, they saw significant improvements in both eyes.
On the face of it, that was odd. Only one eye had received the treatment, after all. Follow-up studies in monkeys confirmed what the researchers had suspected. The virus, it seemed, had found a way to travel from one eye to the other, probably via the optic nerve. Tissues and fluids samples from monkeys given the same treatment as the human patients showed viral DNA in both eyes, not just one.
Although it had a happy outcome in this case, the prospect of a gene-therapy virus travelling to places it is not intended to go to might worry regulators. Fortunately, the researchers found no trace of the virus elsewhere in the monkeys’ bodies. And. though the study was technically a failure, its practical success means that an effective treatment for LHON may at last be in reach.
1. LHON is chosen in this study because it________| A．can be easily cured |
| B．affects young males mostly |
| C．is a common disease among people |
| D．results from a mutation in a single gene |
| A．Some participants suffered loss of sight |
| B．The vision of both eyes improved greatly |
| C．All the participants gave positive feedback |
| D．The virus didn’t replace the damaged gene |
| A．confirm the virus travels across eyes |
| B．prove the virus can affect other body parts |
| C．show the effect of the treatment on animals |
| D．highlight regulators' worry about gene-therapy |
| A．The Future of Gene Therapy |
| B．The Blessing for Eye Patients |
| C．Gene Therapy: Eyeball to Eyeball |
| D．Virus Treatment: From Humans to Monkeys |
7 . Most solar panels acquire sunlight from only one side, meaning they can acquire more or less of it depending on where the sun is in the sky. In recent years, they’ve become far more effective typically turning around 22 percent of the light they acquire into energy. In a new study published in the journal Joule on Tuesday, scientists put forth a way to increase that percentage even higher: double-sided solar panels that can move to follow the sun.
Basically, these panels can acquire sun from not only their sun-facing side but also from the light reflected off the ground onto their dark undersides. At the same time, a GPS allows them to move on an axis from east to west in order to always be pointed at a best angle to acquire the sun’s rays. Though double-sided solar panels and sun-following solar panels are both in use currently, models that combine the two technologies aren’t widely available for commercial use, Solar experts predict explosive growth in the market soon, though.
The study authors determined that these two-sided sun-tracking panels produce an average of 35 percent more energy than immobile single-panel systems, and are 16 percent more cost-efficient. That holds true even when accounting for changes in weather conditions.
“This means that investing in double-sided and tracking systems should be a safe bet for the foreseeable future, Carlos Rodriguez-Gallegos,” the study’s lead author said.
The same warnings for solar panels and their effect on the local environment apply to the double-sided, moving systems as well, if not more so. Lead used in solar panels can be one source of local pollution, and Dustin Mulvaney, an associate professor of environmental studies, told Earther in an email double-sided panels could mean “twice as much lead” as traditional solar systems.
Since these new panels are more energy efficient, they could save not only money but also land. That would require restructuring how solar contracts currently work.
1. What does most solar panels rely on to acquire sunlight?| A．The amount of sunlight. | B．The location of the sun. |
| C．The quality of solar panels. | D．The size of solar panels. |
| A．The sun’s rays. | B．The panels’ undersides. |
| C．The double-sided panels | D．The panels’ sun-facing sides. |
| A．Uncertain. | B．Supportive. | C．Doubtful. | D．Subjective. |
| A．Double-Sided Solar Panels that Follow the Sun | B．Advantages of the Double-Sided Solar Panels |
| C．Application of the Double-Sided Solar Panels | D．New Trends of Double-Sided Solar Panels |
8 . While it's not impossible for birds to fly in the rain, they usually choose not to. You may see birds fly for a few seconds in poor weather, but most of them prefer to stay put on rainy days.
Why does rain make it harder for birds to fly? You might imagine that moving through the air while being pelted by raindrops would be pretty unpleasant. However, it's not the rain itself that makes flying difficult. Instead, birds are influenced by the drop in the air pressure that comes with most rainstorms. When pressure drops, the air is less thick, which makes it harder for birds to fly. Moving through the sky in areas of low air pressure takes a lot of energy.
Most birds need to eat several times a day—rain or no rain. Luckily, most birds' feathers（羽毛）are highly waterproof（防水的）, protecting the skin beneath. Many birds can also make oil that they can spread over their feathers to further protect themselves from the rain. Most birds don't like rain. In fact, in a 2010 study, a team of researchers studied birds living in a Costa Rican rainforest. They found that the birds had higher levels of stress hormone（应激激素）on rainy days. That may not surprise you. After all, many animals feel stressed out during storms. Pet owners often find that rain and thunder make their animals nervous. Some animals are so strongly influenced by nature that they almost seem to forecast the future.
No one really knows how many birds die during a storm or series of storms. But the number is certainly higher than usual. They fly into trees or windows; they get lost over the ocean or a large lake; their food sources are made more difficult to get but, at the same time, they need more food to get warm. However, if rain continues for some time, birds will have to challenge the storm.
1. What makes it harder for birds to fly in the rain?| A．The wet air. | B．Food shortage. |
| C．Raindrops. | D．The low air pressure. |
| A．Cleaned. | B．Hit. |
| C．Frightened. | D．Protected. |
| A．Why birds can fly in the rain |
| B．How birds are influenced by rain. |
| C．How birds survive long rainy days. |
| D．Why birds' feathers are waterproof. |
| A．Birds will develop the ability to fly in the rain |
| B．Birds fly only when necessary on rainy days. |
| C．Birds have nowhere to hide in rainstorms. |
| D．Birds need less food on rainy days. |
9 . In an incredible display of compassion and kindness, a man from Turkey was spotted trying to warm a pigeon in the most creative way.
Sabahattin Yılmaz was at home one chilly day. After a rain shower had passed, he noticed something landed on the sill (窗台) outside his window—a cold and wet pigeon. The animal was trembling and soaked; it clearly didn’t have the chance to seek shelter before the rain began. Feeling for the poor pigeon, Yılmaz thought of a way to dry him off.
Rather than pick him up and take him inside to warm up, Yılmaz plugged in a hairdryer and used it to dry off the bird. Little did he know that his neighbor captured the whole moment on video. In the video, Yılmaz can be seen leaning out of his window. He was stretching his arm as far as he can so the hot air can reach the pigeon. The bird willingly let the man warm him up, crouching (蹲伏) to let his outer feathers dry.
Yılmaz told the media that he spent about fifteen minutes drying off the bird. He said he had just opened his window when he saw the pigeon around the corner of the sill. He described it as wet and “about to freeze” from the cold and rainy weather.
After fifteen minutes, Yılmaz gave the pigeon birdseed, which he ate happily. However, the bird remained wet still. “I saw that it was still there so I warmed it up again, after the pigeon recovered again, and after eating a good amount of seed, it flew away,” Yılmaz recalled.
He also didn’t know that he was being recorded at the time and that the video was shared online. He simply did it out of the kindness of his heart. “The pigeon is a living creature and deserved to continue living, that is why I did it,” he said.
1. What is the text mainly about?| A．An online video about a pigeon became a hit. |
| B．A man warmed up a wet and cold pigeon. |
| C．A man invented a creative way to help birds. |
| D．A man lives in harmony with a pigeon. |
| A．It was scared and flew away. |
| B．It was annoyed and refused his help. |
| C．It was ready to accept his assistance. |
| D．It was happy to settle in his home. |
| A．A man was filming Yılmaz’s kindness. |
| B．A pigeon was jumping back and forth when dried off. |
| C．Yılmaz was warming a pigeon in a novel way. |
| D．Yilmaz was stretching his arms to catch a pigeon. |
| A．Indifferent but creative. | B．Patient and ambitious. |
| C．Talented but careless. | D．Sympathetic and warm-hearted. |
10 . It’s time for bed, the lights are out, and yet you’re wide awake. You do eventually manage to fall asleep, but even then, it’s a very shallow, restless sort of sleep.
Now more research suggests you needn’t look further than outside your window and at the moon for the cause of this sleeplessness. However, in a surprising twist, the findings weren’t entirely what the researchers expected. While we know that humans are a species ruled by light, the “lunar phase effect” (月相效应) affects sleep even when artificial sources of light are accounted for.
Rather than people staying up later and sleeping less during the full moon, it was just before the full moon that sleep was shorter and lighter. “It turns out that the nights before the full moon are the ones that have most of the moonlight during the first half of the night,” said Horacio Iglesia, a professor of biology at the University of Washington in The Guardian. The opposite was true just before the new moon — people tended to sleep more and go to bed earlier.
Ninety-eight participants across three Indigenous communities in Argentina wore wrist monitors tracking sleep patterns over the course of one to two months. While one community had no access to electricity, the second community had limited access, and the third community was located in an urban setting with full access to electricity.
The study also found that this lunar phase effect on sleep also appeared to have greater impact on people who had more limited access to electricity. In every community, participants’ peak (高峰) sleepless period occurred in the three to five days leading up to the full moon night, while the opposite was true for the new moon, the study authors found.
Wanting further insight, the researchers compared their data to the results of a similar study of 464 Seattle-based students at the University of Washington. The findings proved consistent.
This research supports the view that try as we may, we can’t ever fully get away from some forces of nature.
1. What makes it hard for people to fall asleep?| A．Visual distance. | B．Faded light. |
| C．Artificial light. | D．Bright moonlight. |
| A．Before the full moon. | B．During the full moon. |
| C．Before the new moon. | D．During the new moon. |
| A．The third community slept least during the new moon. |
| B．Lunar phase effect affected the first community more. |
| C．Peak sleepless period often happened at the same night |
| D．The result of the research differed from previous ones. |
| A．Shallow Sleep Does Harm to Health | B．The Moon Affects Our Sleep Cycles |
| C．People Live in Harmony with Nature | D．Sleep Patterns Differ from Each Other |
