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2025·江西·模拟预测)In a recent study, Keren Papier at the University of Oxford and her colleagues used 16 years of data on more than 540,000 women in the UK. The researchers found that every additional 300 milligrams of calcium () per day was associated with a 17 per cent reduction in risk. “This is the most comprehensive single study ever conducted into the relationship between diet and colorectal cancer (结直肠癌), and it highlights the potential protective role of dairy products, largely due to calcium, in the development of colorectal cancer,” says Papier.

Papier’s study agrees with another recent paper that followed more than 470,000 adults for over 20 years. This similarly found an association between reduced colorectal cancer risk and higher calcium consumption.

A third study, led by Shuji Ogino in Boston, adds to the evidence, but turns the spotlight away from calcium. His team followed some 87,000 women for 40 years and 45,000 men for 30 years. At least two servings of plain yogurt a week, which contained Bifidobacterium bacteria (双歧杆菌), was linked to a 20 per cent lower rate of colorectal cancer.

When it comes to calcium pills, a 2018 report for Cancer Research suggests that they decrease the risk of colorectal cancer, but another study found that they may increase the risk of diseases that may lead to the condition. Given the widespread use of these pills, further research is needed, says Papier.The benefits of Bifidobacterium bacteria are also unknown, says Ogino.

To him, these studies illustrate the complex connection between our diet and cancer risk, with there being no shortcut to health. “If people try to go to a supermarket and buy more plain yogurt, then that’s good, but if they just stop in a day or two, there is no effect.”

People should try to follow all the cancer prevention advice such as being active and not smoking, and “not focus on the potential benefits of one food or one nutrient”, says Mathers, a health expert.

264What did Keren Papier’s study find?

ACalcium from dairy products can cure cancer.

BMore calcium leads to better colorectal cancer fighting.

CThe daily consumption of 300 mg of calcium is necessary.

DExtra calcium consumption is linked to a lower colorectal cancer risk.

265What is the key difference between Papier’s and Ogino’s studies?

AStudy focus. BStudy duration.

CResearch method. DParticipants’ gender.

266What is the best way to prevent cancer according to Mathers?

AFollow experts’ guidelines. BFocus on food and nutrient.

CTake all factors into account. DEmphasize the involvement in sports.

267What would be the best title for this passage?

AYogurt vs. Calcium: Which One Works Better?

BCalcium Pills: Their Role in Cancer Prevention

CColorectal Cancer Risk: How to Reduce It Effectively?

DDiet Choices: Their Impact on Colorectal Cancer Prevention

 

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24-25高三下·安徽安庆·期中)Taylor Swift fans really know how to “Shake It Off” — and shake the ground. Scientists studied how the stadium and ground trembled during one of Swift’s Eras Tour concerts last August. They discovered that dancing fans generated shaking in the ground — earthquake waves that matched the beat of each song. During Swift’s performance of “Shake It Off”, the stands released about as much energy as a magnitude 0.85 earthquake, which is not quite strong enough to be felt by humans.

This isn’t the first time scientists have measured quakes from a stadium. In 2011, Seattle Seahawks fans shook their home stadium with cheers after a stunning touchdown. And last July, Swifties rocked the ground at a Seattle concert. The shaking from those events differs from an earthquake. Earthquakes usually last only a few seconds. A “concert quake” can last several minutes. Besides, the ground also moves in different ways during quakes and concerts. Earthquakes happen when big tectonic (地壳的) plates move around. Those motions perpetually change the ground. In contrast, the shaking caused by crowds “is more like splashing (泼水) in a pool,” explains Gabrielle Tepp, a professor at the California Institute of Technology in Pasadena. “You see the waves coming out, but then once you’re done splashing, it just goes back to normal.” The “concert quake” doesn’t usually deform the Earth.

Tepp and her colleagues used similar instruments to detect earthquakes and concert quakes. In the new study, they set up a portable speaker next to a motion sensor in their lab and turned the speaker volume all the way up. They also played Swift’s “Love Story” at the speakers’ highest volume. Tepp even jumped around near the sensor while dancing to the last chorus. The sensor picked up the quaking which matched that from the concert only when Tepp was jumping around, which suggests that the shaking measured at the concert came from fans jumping and dancing, too.

The findings tell scientists about more than just concert shaking. Understanding how a stadium quakes in response to a large crowd could help make buildings safer, says Golos. “We can also better understand human behavior using such seismic data”, she says. “I think there’s a lot of interesting information hidden in there.”

260What is the function of the first paragraph?

ATo introduce the main argument.

BTo provide background information.

CTo offer a convincing explanation.

DTo conclude the previous findings.

261What does the underlined word “perpetually” mean in paragraph 2?

Arandomly. Bslightly. Cpermanently. Dregularly.

262Why did Tepp and her colleagues conduct the experiment?

ATo test the effectiveness of the motion sensor.

BTo figure out the quake source of the concert.

CTo prove that Taylor Swift’s songs can cause ground-shaking.

DTo study the relationship between music volume and ground-shaking.

263What’s the significance of the research?

AIt guides fans to behave well at a concert.

BIt predicts when and where an earthquake will happen.

CIt improves stage design and sound effect of a concert.

DIt lays a foundation for creating safer architecture.

 

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24-25高二下·湖南郴州·阶段练习)Notice of the School Library

Dear students,

Welcome to the school library! We are glad to provide you with a variety of books and a comfortable reading environment. Here are some important rules and information for you to follow and know.Opening Hours:

●Monday to Friday: 8:00 a.m.-5:00 p.m.

●Saturday: 9:00 a.m.-12:00 p.m.

●Sunday: ClosedBorrowing Rules:

●Each student can borrow up to 5 books at a time.

●The borrowing period is 2 weeks. If you need to keep the books longer, you can renew them once for another 2 weeks.

●Please take good care of the books. If a book is damaged or lost, you will need to pay for it according to its price.Other Services:

●We offer free Wi-Fi in the library. The password is “library2024”.

●There are study rooms available for group discussions. You can book them at the front desk.

●We also have a collection of e-books that you can access through our website.

We hope you enjoy your time in the library and make good use of its resources. If you have any questions, please feel free to ask the librarians.

Thank you for your cooperation!

The School Library

256When is the library open on Saturdays?

A8:00 a.m.-5:00 p.m. B9:00 a.m.-12:00 p.m.

C10:00 a.m.-2:00 p.m. DClosed.

257How many books can a student borrow at most at one time?

A3. B4. C5. D6.

258What should a student do if he/ she wants to keep the borrowed books longer?

ARenew them once for another 2 weeks. BReturn them and borrow again.

CPay for the books. DAsk the librarian for extra days.

259Which of the following is NOT mentioned as a service provided by the library?

AFree Wi-Fi. BStudy rooms for group discussions.

CE-books. DPrinting service.

 

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2025·江西·模拟预测)Recent research on insects trapped in amber has revealed surprising information about male mosquitoes. It has long been known that female mosquitoes are the ones that bite humans and animals to feed on blood. However, the discovery of ancient mosquitoes in amber suggests that male mosquitoes may have also fed on blood in the past.

Amber is formed when tree resin (树脂) hardens and preserves small animals or plants that get stuck in it. Dr. Azar, a paleontologist (古生物学家) at the Nanjing Institute of Geology and Palaeontology, studies amber with the aim of understanding how flowering plants and pollinator (传粉昆虫) insects have evolved together. However, while polishing one of the amber specimens to a thin slice that could be examined under a microscope, he was taken back. He found that two of the specimens were the oldest known fossils from the mosquito family, for their sharp, elongated mouth parts with tiny toothlike bristles (鬃毛).

Further examination of the insects yielded another surprise. These two mosquitoes also had pincerlike organs called claspers, which are used to hold onto females during mating. This finding challenges the belief that only female mosquitoes have mouth parts designed for bloodsucking. Dr. Azar believes that these ancient male mosquitoes may have fed on blood but eventually lost this ability during the evolution of the species when flowering plants appeared.

However, some experts remain skeptical about his assumption. Dale Greenwalt, also a paleontologist at the Smithsonian National Museum of Natural History, finds the idea interesting but controversial. He suggests that further research is needed to confirm if these insects were indeed mosquitoes and if their mouth parts were used for bloodsucking or other.

Despite the ongoing debate, Dr. Greenwalt acknowledges the importance of bold claims like Dr. Azar’s in pushing scientific research forward. He believes that even if some scientists are conservative, those who are not can eventually correct any errors. Only time and further investigation will reveal the truth about these ancient male mosquitoes and their feeding habits.

252According to the passage, what is the main purpose of Dr. Azar’s research on amber specimens?

ATo study the evolution of flowering plants.

BTo identify different species of mosquitoes.

CTo understand the relationship between plants and pollinator insects.

DTo examine the preservation process of insects in amber.

253What does the underlined phrase “taken back” mean in Paragraph 2?

ABeing removed. BBeing astonished.

CBeing reminded of something. DBeing brought to someplace.

254What does the presence of claspers of the examined ancient mosquitoes imply?

AThey belong to the oldest mosquitoes. BThey prove that the mosquitoes are males.

CThey help insects sip nectar from flowers. DThey show that mosquitoes prefer plants.

255What is Dr. Greenwalt’s attitude towards the hypothesis proposed by Dr. Azar?

AHe fully supports Dr. Azar’s findings and believes they are accurate.

BHe thinks it is too risky and lacks sufficient evidence.

CHe agrees to it but believes more research is needed.

DHe is uncertain and suggests waiting for other scientists’ opinions.

 

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2025届湖北省部分学校高三下学期考前信息卷一英语试题(含听力))Your Kids Must Visit These Fun Farms

There are many local farms and animal farms to visit with children in Pennsylvania. Most of these farms are within an hour’s drive from Philadelphia.

The Barn at Springbrook Farm in Unionville:

It sits on 13 acres of open space including grassland, gardens, and natural paths. Their fully accessible Chester County Bank Barn (谷仓) was designed specifically to provide opportunities for children with disabilities to participate in animal-assisted activities.

Cherry Crest Farm in Lancaster County:

Cherry Crest Farm has a ton of interesting things, including animals, corn mazes (迷宫) and so much more. But it also gets very crowded during the peak months and is one of the most expensive farm outings.It would be better to take older kids there but not babies. Still, it has lots of fun.

Linvilla Orchards in Media:

Linvilla has a ton to offer as far as activities for kids — the animals, mini golf, all kinds of festivals, treasure hunt, apple picking and strawberry picking, and a gift shop. It sits right outside of Philadelphia, but once you’re there you’d never know how close to the city you are.

Baily’s Dairy Farm in Pocopson:

It’s perfect for you when you just want to visit a farm with your kids but maybe don’t want to make a whole day of it. Just a great place to visit and it is free except for what you purchase. They have bunnies, ducks, geese, chickens, roosters, cats, cows, goats, and sheep.

249What is a unique feature of the barn at Springbrook Farm?

AFree entry to all the visitors. BServing disabled children specifically.

CThe largest farm near Philadelphia. DThe most diverse range of animals.

250Why might Cherry Crest Farm not be suitable for very young children?

AIt is too far from Philadelphia. BIt is very crowded sometimes.

CIt has age restrictions for entry. DIt lacks activities for young kids.

251What do the last two farms have in common?

ABoth offer mini golf. BBoth have fruit trees.

CBoth are in Unionville. DBoth have places to shop.

 

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2025届湖北省部分学校高三下学期考前信息卷一英语试题(含听力))DeepSeek, a Chinese AI startup founded in 2023, has gained significant popularity, including ranking as the top free app on Apple’s App Store. Eager to understand how DeepSeek measures up against ChatGPT, I conducted a comprehensive comparison between the two platforms.

As for testing the summarization of research paper, I entered the prompt (指令) “Summarize the key findings of the latest AI research paper on multi-modal learning in 150 words.” ChatGPT offered a comprehensive summary of the key findings but did not provide as thorough a response in the number of words required. DeepSeek went beyond the word-limit, but provided a more comprehensive and informative summary of the paper’s key findings, which is slightly better due to its more detailed and specific language.

I also tested how they would solve complex problems. I used the prompt “A train leaves New York at 8:00 am traveling west at 60 mph. Another train leaves Los Angeles at 6:00 am traveling east at 70 mph on the same track. If the distance between New York and Los Angeles is 2,800 miles, at what time will the two trains meet?”

ChatGPT showed the math as it usually does. When the answer came out, I thought for sure that DeepSeek would get the same one and ChatGPT would simply lose for being slower. However, after determining the answer myself, I discovered that ChatGPT got the answer wrong, immediately disqualifying it in this round.

DeepSeek made me literally say, “Wow!” The speed at which the AI came up with the answer was faster than ChatGPT. In fact, it was so fast that I was sure it had made a mistake. After checking the math by hand and even using Claude as a tie breaker, I was able to determine that DeepSeek was the one who got the answer right.

By presenting more prompts to both ChatGPT and DeepSeek, I was able to compare their responses and determine which model performs better in each specific area. While neither AI is perfect, I was able to conclude that DeepSeek was the ultimate winner. It is no wonder that DeepSeek is quickly gaining popularity to the point that the platform is limiting user registration.

245How was DeepSeek’s performance when summarizing?

AIt provided a less comprehensive summary.

BIt followed quite strictly to the word-limit.

CIt used more detailed and specific language.

DIt was disqualified for incorrect information.

246Why did the author initially think DeepSeek had made a mistake according to Paragraph 5?

ABecause its answer was different from ChatGPT’s.

BBecause it provided the answer faster than expected.

CBecause it used more concise answer than ChatGPT.

DBecause its answer was the same as Claude’s calculation.

247What are the author’s criteria for winner?

①Strict limitation to word count. ②The comprehensive summarization ability.

③Detailed and specific language. ④The speed of giving right answers.

A①②③ B①②④ C①③④ D②③④

248What is the main reason for DeepSeek’s recent popularity?

AIt is a new AI startup. BIt limits user registration.

CIt provides better answers. DIt ranks as the top free app.

 

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24-25高二下·新疆乌鲁木齐·期中)Last year, I realized I needed to make a change when I couldn’t even run for the bus without getting out of breath. My doctor warned me about my rising blood pressure and suggested I adopt a healthier lifestyle. Determined to improve, I decided to combine regular exercise with a balanced diet.

I started with simple morning walks, gradually increasing to jogging. At first, it was exhausting, but within weeks I noticed my stamina improving. Meanwhile, I replaced sugary snacks with fruits and swapped white bread for whole grains. The most challenging part was cutting down on takeout, but learning to cook simple, nutritious meals made it easier.

Six months later, the results amazed me. Not only had I lost 8 kilograms, but my blood pressure returned to normal. More importantly, I felt more energetic and confident. This experience taught me that small, consistent changes can lead to significant improvements in health.

234What made the author decide to change his lifestyle?

AA friend’s suggestion BFailing a physical test

CDoctor’s warning about his health DSeeing an inspiring movie

235How did the author begin his exercise routine?

ABy joining a gym BWith morning walks

CThrough swimming lessons DBy hiring a personal trainer

236The word “stamina” (Paragraph 2) most likely means ________.

Aspeed Bendurance Cstrength Dflexibility

237What was the most difficult dietary change for the author?

AEating more vegetables BGiving up takeout food

CDrinking less coffee DAvoiding red meat

 

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24-25高二下·新疆乌鲁木齐·期中)In early April 2025, China’s Ministry of Ecology and Environment (MEE) released the national air quality forecast for the first half of April. Most regions, except Northwest China affected by sandstorms, are expected to have good to moderate air quality. The PM2.5 concentration in cities decreased by 16.4% year-on-year, reflecting progress in pollution control.

Meanwhile, MEE emphasized data authenticity. Jiang Huohua, Director of the Monitoring Department, warned at a press conference: “Fabricated data is more dangerous than no data.” This statement highlights the government’s commitment to transparent environmental governance.

On the international stage, the 11th BRICS Environment Ministers’ Meeting was held in Brasilia on April 3. Discussions focused on sustainable development and climate leadership. Huang Runqiu, China’s Minister of Ecology and Environment, proposed enhancing green technology sharing among member countries to achieve carbon neutrality goals.

Additionally, China’s 2025 Government Work Report prioritizes green transformation. Key tasks include reducing PM2.5 levels by 2.7%, expanding the carbon trading market, and launching zero-carbon industrial parks. These measures aim to balance economic growth with ecological health.

230What is the main purpose of the text?

ATo criticize false environmental data.

BTo introduce April’s environmental policies and actions.

CTo compare air quality in different regions.

DTo advertise international conferences.

231According to the text, which area faced sandstorm challenges in early April 2025?

ASouthern China. BNorthwest China.

CCoastal regions. DCentral cities.

232What did Jiang Huohua stress at the press conference?

AThe success of PM2.5 reduction.

BThe importance of data authenticity.

CThe need for international cooperation.

DThe impact of sandstorms.

233What was a key topic at the BRICS Environment Ministers’ Meeting?

AUrban waste management.

BCarbon neutrality through technology sharing.

CWildlife protection.

DMarine pollution control.

 

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24-25高二下·新疆乌鲁木齐·期中)A DeepSeek Perspective

In the realm of science and technology, artificial intelligence (AI) has emerged as a transformative force, reshaping industries and daily life. DeepSeek, a pioneering company in the AI sector, has been at the forefront of developing advanced technologies that hold the potential to revolutionize various fields. However, as AI continues to advance, it also brings with it a host of challenges and ethical dilemmas that must be carefully navigated.

On the one hand, AI offers numerous benefits. In healthcare, DeepSeek’s AI algorithms can analyze vast amounts of medical data to assist doctors in making more accurate diagnoses and personalized treatment plans. This not only improves patient outcomes but also enhances the efficiency of the healthcare system. In education, AI-driven tools can provide personalized learning experiences, adapting to the individual needs of students and offering targeted support. This can lead to better educational outcomes and a more inclusive learning environment.

Moreover, AI can significantly boost productivity in various industries. By automating repetitive tasks, AI can free up human resources to focus on more creative and strategic activities. This can lead to increased innovation and economic growth. For example, in manufacturing, AI can optimize production processes, reduce waste, and improve product quality.

On the other hand, the rise of AI also poses several challenges. One of the most significant concerns is the potential for job displacement. As AI systems become more capable, they may replace human workers in certain sectors, leading to unemployment and economic instability. Another issue is the ethical use of AI. AI systems are only as unbiased as the data they are trained on, and if the data contains biases, the decisions made by AI could perpetuate or even exacerbate existing inequalities.

Furthermore, there is the question of privacy. With the increasing amount of data collected and analyzed by AI systems, there is a growing risk of personal information being misused or leaked. Ensuring data security and protecting individual privacy are critical issues that must be addressed as AI continues to expand its reach.

In conclusion, while AI offers many benefits, it is essential to approach this technology with a balanced perspective. The potential for AI to improve our lives is immense, but so are the risks if it is not managed responsibly. As we continue to develop and integrate AI into our society, we must prioritize ethical considerations, data security, and the well-being of all individuals.

226What is one major benefit of AI in healthcare mentioned in the passage?

AAI can completely replace doctors.

BAI can help doctors make more accurate diagnoses.

CAI can eliminate the need for medical tests.

DAI can predict future diseases with absolute certainty.

227What is a potential negative impact of AI on employment?

AAI will create more job opportunities in all industries.

BAI will lead to an increase in the number of high-paying jobs.

CAI may cause job displacement in certain industries.

DAI will have no impact on employment.

228Why is the ethical use of AI a concern?

AAI systems are always fair and unbiased.

BAI systems can only make decisions based on biased data.

CAI systems may perpetuate existing inequalities if the data they are trained on is biased.

DAI systems are not capable of making decisions.

229What is the main purpose of the passage?

ATo promote the benefits of AI developed by DeepSeek.

BTo criticize the development of AI by DeepSeek.

CTo discuss the advantages and disadvantages of AI and the need for responsible development.

DTo argue that AI should be banned due to its negative impacts.

 

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