Davyon Johnson, an 11-year-old boy, was honored by his community after saving two lives in one day. On Dec. 9, a choking student tripped into the classroom
2 . In the United Arab Emirates (UAE), water is more valuable than oil. To support its citizens, the nation relies on expensive campaigns of cloud seeding from aircraft, which spray particles(喷洒微粒) into passing clouds to make rainfall.
But according to Oliver Branch, a climate scientist, there may be another method to stir up a rainmaker: with city-size solar farms that create their own weather. The heat from dark solar panels can cause updrafts that sometimes lead to rainstorms, providing water for local people. “Maybe it’s not science fiction that we can produce this effect,” says Branch, who led the work.
Few studies have examined how renewable energy might shift weather patterns. In 2020, Branch found that incredibly large solar farms, taking up more than 1 million square kilometers in the Sahara desert, could boost local rainfall. But the reward would come with a cost, the researchers found: By altering wind patterns, the solar farms would push tropical rain bands north. That’s not good news for the Amazon areas.
To find more, researchers turned to a weather model that can account for land surface changes. They modeled the solar farms as nearly black fields that absorbed 95%of the sunlight, surrounded by relatively reflective sand. When the solar farms reached 15 square kilometers, they found, the increased heat they absorbed appreciably increased the updrafts, or convection, that drive cloud formation.
Hacking convection wasn’t enough, however: damp air was also needed. When conditions were ripe, the model also found, a 20-square-kilometer solar field would increase a storm’s total rainfall by nearly 600,000 cubic meters. If such rainstorms occurred 10 times in one summer, they would provide enough water to support more than 30,000 people for a year.
Solar farms in China and elsewhere are nearly big enough, Branch says. If they were built in the right spots, it wouldn’t take much to darken the panels and to plant dark crops between panel rows. Still they’re trying to improve the realism of their solar panel simulations by cross-checking them with field measurements at existing solar farms.
The UAE “is committed to studying the potentially dynamic strategies, such as optimizing convection,” says Alya Al, director of the UAE’s Research Program. For now, she adds, the UAE is deeply committed to its cloud seeding program, carrying out some 300 missions each year.
1. In his study, Branch attempts to produce rainfall ________.| A．by way of updrafts formed on solar farms | B．by spraying particles into passing clouds |
| C．by means of relatively reflective sand | D．by planting dark crops |
| A．the ripe conditions for building a solar farm |
| B．the realistic size of a solar farm for rainfall increase |
| C．the annual amount of water consumption in the UAE |
| D．the heat absorption rate of the solar panels in the black fields |
| A．It is not supported by the director. | B．It needs great investment if applied. |
| C．It remains to be further tested in practice. | D．It has promoted cloud seeding in the UAE. |
Family values are a set of principles and beliefs that a family agrees upon, such as emphasizing the importance of honest behaviors or valuing effort and persistence in achieving goals. They are fundamental and determine how members of a home interact with each other and with the world.
Family values determine what you think is important and what is good. These values can help you stay consistent when making decisions in everyday life, especially in moments of uncertainty. This is particularly true when you’re going to make quick decisions based on an emotional reaction. For example, if honesty and communication are your important family values, you’re more likely to approach conflicts with an open mind and a willing heart to talk through issues. When finding your family member has lied to you, instead of acting thoughtlessly, you know what to do—have a talk sincerely.
Family values serve as a guiding force within the home, but their impact extends far beyond, shaping societal norms and behaviors. For example, if several families plant generosity in their values, the next generation will grow up to be more generous. As a result, adults in this generation are more likely to take other people’s needs into consideration when making difficult choices. They become positive contributors to the society, developing an atmosphere of care and consideration that enhances communal well-being.
Great influence as it has, family values are not taught consciously. Often, they get passed down without being noticed. Those values don’t ever get questioned. Whether you’ve outlined them or not, they’re present. And once you take ownership of those values, you can shape them to be in line with what you expect your family to be.
1. What are family values?2. How can family values help to make decisions in everyday life?
3. Please decide which part is false in the following statement, then underline it and explain why.
Family values have great influence within the home, but they have nothing to do with shaping common behaviors and rules in a society.
4. Please share one of your family values and explain how it influences you. (In about 40 words)
When a severe car crash occurs on a deserted road, the injured may not rely on nearby witnesses to call the emergency services. Now many modern smartphones
The Port of Shanghai has been the busiest in the world for 14 years running after
Before some of the greatest explorers in history were born, Vikings had already navigated (航海) their way around the world. But with no
7 . The Happy Hitchhiker (徒步者)
Several years ago, I decided to visit my best friend, who lived in Napier.
As I walked along a tree-lined country road, I
He laughed and asked if I
Opotiki was a further 25 km away, so I
After dinner we all
The next morning I woke to a cup of tea and a nice hot breakfast. I thanked them for their care, when the lady handed me a sandwich saying that it should
| A．Whether | B．Once | C．Because | D．Although |
| A．brave | B．funny | C．lucky | D．clever |
| A．supposed | B．explained | C．discovered | D．wondered |
| A．blocked | B．headed | C．pointed | D．expected |
| A．named | B．left | C．meant | D．passed |
| A．road | B．weather | C．town | D．night |
| A．followed | B．directed | C．invited | D．promised |
| A．looked | B．chatted | C．waited | D．guessed |
| A．keep | B．join | C．mind | D．stop |
| A．intelligence | B．eagerness | C．honesty | D．kindness |
8 . A recent global study, which surveyed 10,000 young people from 10 countries, showed that nearly 60 percent of them were extremely worried about the future state of the planet. The report, which was published in The Lancet, also showed that nearly half of the respondents said that such distress affected them daily, and three quarters agreed with the statement that “the future is frightening.” This, along with many other studies, shows clearly that climate change is not just a threat to the environment that we inhabit. It also poses a very real threat to our emotional well-being. Psychologists have categorized these feelings of grief and worry about the current climate emergency, a common occurrence among youth today, under the label of “eco-anxiety”.
Eco-anxiety doesn’t just affect young people. It also affects researchers who work in climate and ecological science, burdened by the reality depicted by their findings, and it affects the most economically marginalized (边缘化的) across the globe, who bear the damaging impacts of climate breakdown.
In 2024, eco-anxiety will rise to become one of the leading causes of mental health problems. The reasons are obvious. Scientists estimate that the world is likely to breach safe limits of temperature rise above pre-industrial levels for the first time by 2027.
In recent years, we’ve seen wildfires tear through Canada and Greece, and summer floods ruin regions in Pakistan that are home to nearly 33 million people. Studies have shown that those impacted by air pollution and rising temperatures are more likely to experience psychological distress.
To make matters worse, facing climate crisis, our political class is not offering strong leadership. The COP28 conference in Dubai will be headed by an oil and gas company executive. In the UK, the government is backtracking on its green commitments.
Fortunately, greater levels of eco-anxiety will also offer an avenue for resolving the climate crisis directly. According to Caroline Hickman, a researcher on eco-anxiety from the University of Bath, anyone experiencing eco-anxiety is displaying entirely natural and rational reactions to the climate crisis. This is why, in 2024, we will also see more people around the world join the fight for climate justice and seek jobs that prioritize environmental sustainability. Campaigners will put increased pressure on fossil fuel industries and the governments to rapidly abandon the usage of polluting coal, oil, and gas.
It’s now clear that not only are these industries the main causes for the climate crisis, they are also responsible for the mental health crisis, which is starting to affect most of us. Eco-anxiety is not something we will defeat with therapy, but something we will tackle by taking action.
1. What can we learn from the passage?| A．The cause of eco-anxiety is emotions existing in our mind. |
| B．People in developed countries are more likely to suffer from eco-anxiety. |
| C．Eco-anxiety is a new kind of psychological disease due to climate change. |
| D．The author is disappointed about government behaviour towards climate crisis. |
| A．Break. | B．Reach. | C．Raise. | D．Affect. |
| A．puzzled | B．favourable | C．suspicious | D．unconcerned |
| A．Who Is to Blame for Eco-anxiety? |
| B．How Should You See Eco-anxiety? |
| C．How Will Eco-anxiety Be Resolved? |
| D．Why Do People Suffer from Eco-anxiety? |
9 . Artificial intelligence is almost twice as accurate as a biopsy (活组织检查) at judging the aggressiveness of some cancers, experts say. Cancer kills 10 million people globally every year, according to the WHO. But for patients the disease can be prevented if detected instantly and dealt with quickly.
A recent study suggested an AI algorithm (算法) was far better than a biopsy at correctly grading the aggressiveness of sarcomas (肉瘤), a rare form of cancer. Researchers hope AI will improve outcomes for patients by giving doctors a more accurate way of grading tumours (肿瘤). Because high-grade tumours can indicate aggressive disease, the tool could help ensure those high-risk patients are identified more quickly and treated instantly. Low-risk patients could also be spared unnecessary treatments, follow-up scans and hospital visits.
Researchers say the algorithm could be applied to other types of cancer in future. The team specifically looked at retroperitoneal sarcomas, which develop at the back of the abdomen and are difficult to diagnose (诊断) and treat due to their location. They used CT scans from 170 patients with the two most common forms of retroperitoneal sarcoma — leiomyosarcoma and liposarcoma. Using data from these scans they created an AI algorithm, which was then tested on 89 patients in other countries. In grading how aggressive the tumour was, the technology was accurate in 82% of the cases, while biopsies were 44%.
AI could also recognize leiomyosarcoma and liposarcoma in 84% of sarcomas tested, while radiologists were able to identify them in 65% of the cases. Christina Messiou, the study leader, said: “We’re incredibly excited by the potential of this state-of-the-art technology, which could lead to patients having better outcomes through faster diagnosis. As patients with retroperitoneal sarcoma are routinely scanned with CT, we hope this tool will eventually be used globally, ensuring that not just specialist centres can reliably identify and grade the disease.”
Richard Davison, chief executive of Sarcoma UK, said the results looked “very promising”. He added: “People are more likely to survive sarcoma if diagnosed early. One in six people with sarcoma cancer wait more than a year to receive an accurate diagnosis, so any research that helps patients receive better treatment and support is welcome.”
1. According to the passage, AI is capable of .| A．grading the risk of sarcomas |
| B．measuring the scale of sarcomas |
| C．providing cancer treatment for clinicians |
| D．classifying cancers with its advanced algorithm |
| A．More sarcomas can be detected with the help of AI. |
| B．Biopsies will be replaced by AI algorithm in identifying cancers. |
| C．More patients suffering from cancers will benefit from AI algorithm. |
| D．AI algorithm has been applied in hospitals for detecting most cancers. |
| A．AI has a profound market in curing cancers. |
| B．New treatments for sarcomas are well underway. |
| C．AI helps identify high-risk and low-risk patients. |
| D．AI does better in assessing some types of sarcomas. |
10 . 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 |
