相关试卷

内容包括：

1．阐述现象；2．分析危害；3．提出建议。

注意：

1．词数不少于80；2．可适当加入细节，使内容充实、行文连贯。

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The ancient practice of stargazing, which (date) back to prehistoric times, has long fascinated humanity. Early civilizations, from the Babylonian astrologers charting constellations to the Polynesian sailors reading the night sky, relied on celestial observations (navigate) vast oceans and track seasonal changes that governed their agricultural cycles. Even today, as cities glow with artificial light, the allure of distant stars continues to draw both amateur sky-watchers and seasoned scientists.

A recent study, (conduct) by a team of astronomers at the University of Edinburgh over the course of five years, suggests that certain stars in the Orion Arm of the Milky Way (emit) radiation with unexpected frequencies for over a millennium. This phenomenon, cause remains unknown despite countless simulations, challenges existing theories about how stars evolve over time — particularly those in the later stages of their life cycles.

Dr. Eleanor Hart, who led the research, explained in a press conference: "We're observing patterns no computer model has predicted. It's as if the stars are communicating in a language (we) have yet to decode, sending signals that shift in ways we can't fully explain." Her team's findings, published in last month's International Journal of Astrophysics, have sparked intense debates in academic circles, with some experts questioning the accuracy of the data collection methods.

To address these doubts, researchers plan to replicate the experiment using advanced telescopes stationed at remote observatories in Chile's Atacama Desert, (hope) to collect data that will either confirm their initial conclusions or shed light on alternative explanations. "The universe is far more intricate than we once imagined," Dr. Hart noted in her latest paper. "Every breakthrough only reveals how much more there is to learn."

By next year, when the new high-resolution imaging system is fully operational, they (install) a state-of-the-art observatory in the Andes Mountains, where thin air and minimal light pollution create optimal conditions for studying faint stellar emissions. This facility is expected to revolutionize our understanding of cosmic radiation patterns, potentially unlocking secrets that have puzzled astronomers for decades.

Dr. Carlos Mendez, who led the expedition, spent weeks meticulously brushing away debris, his hands2 with a mix of excitement and caution.

The creature's skull, adorned with elongated horns, suggested it was a herbivore, yet its leg bones indicated a3 gait typically associated with predators.

This contradiction4 the research team. "We're looking at an evolutionary anomaly," Dr. Mendez noted, as he examined a5 of the rib cage under a microscope.

Local villagers, initially6 about the dig, soon grew curious. Children would peer over the excavation site's fence, their eyes wide with wonder as scientists7 more bones.

By the end of the third month, the team had8 a partial skeleton that spanned over six meters. Radiocarbon dating revealed the fossil was 75 million years old, a period when South America's ecosystem was undergoing dramatic9.

Dr. Mendez hypothesized that the dinosaur's unique traits were an adaptation to10 environmental conditions. Peer reviews initially11 the findings, citing inconsistencies in dating methods. But additional tests12 the original conclusions, prompting a flurry of research papers.

"This discovery rewrites our understanding of Cretaceous biodiversity," said Dr. Eliza Torres, a renowned paleontologist. The fossil, now on display at Buenos Aires' Natural History Museum, continues to13 visitors.

School groups gather around it, listening intently as guides explain how such a creature could have14 in prehistoric Patagonia. For scientists, it remains a puzzle — one that may15 our knowledge of dinosaur evolution for decades to come.

Reading is a fundamental skill that enriches our knowledge and broadens our perspectives. However, many people struggle to maintain consistent reading habits. With the right strategies, anyone can become a regular reader and enjoy the benefits it brings.

. Before you start, think about what you want to gain from reading. Do you want to learn new skills, explore different cultures, or simply relax? Your goals will help you choose the right books and stay motivated. For example, if you aim to improve your vocabulary, you might focus on literary classics or non-fiction works with rich language.

Create a reading schedule that fits your daily routine.. It could be 20 minutes in the morning before work, 15 minutes during your lunch break, or half an hour before bed. Consistency is more important than the amount of time you spend reading each day. Set a reminder on your phone or mark your reading time on a calendar to help you stick to the schedule.

Choose the right reading environment.. Some people prefer quiet places like libraries or their home study, while others enjoy reading in cafes with soft background music. Make sure your reading space is comfortable — have a good chair, proper lighting, and keep distractions like phones or TVs to a minimum.

Take notes while reading to enhance comprehension.. Write down key ideas, unfamiliar words, or questions that come to mind. You can use a notebook, sticky notes, or digital tools like e-readers with note-taking features. Reviewing your notes later will help you remember what you've read.

Finally, celebrate your progress.. Whether you finish a book, reach a reading goal, or discover a new favorite author, take time to acknowledge your achievement. Reward yourself with a trip to a bookstore, a new bookmark, or simply the satisfaction of knowing you're building a valuable habit.

A. Set clear reading goals

B. This makes reading more interactive and social

C. Everyone has different preferences for where they read best

D. Reading in short, regular sessions is more effective than long, occasional ones

E. Keeping track of your reading journey can motivate you to keep going

F. Not every book will resonate with you, and that's perfectly normal

G. This helps you engage actively with the text and retain information better

The core principles of ecotourism include minimizing environmental damage, respecting local cultures, and supporting conservation efforts. Travelers engaging in ecotourism activities typically visit protected areas such as national parks, wildlife reserves, or remote communities. They participate in activities like bird watching, hiking, or learning about traditional crafts from local residents. These experiences not only allow travelers to connect with nature but also contribute to the preservation of fragile ecosystems.

One successful example of ecotourism is the Galapagos Islands in Ecuador. Faced with threats from over-tourism in the 20th century, the government implemented strict regulations to protect the unique wildlife and landscapes. Today, visitors to the Galapagos must follow designated routes, be accompanied by certified guides, and pay a conservation fee that funds environmental protection projects. This approach has helped maintain the islands' biodiversity while providing income for local communities through tourism.

Another example is Costa Rica, often regarded as a leader in ecotourism. The country has transformed its natural resources into a sustainable tourism industry, with over 25% of its land protected in national parks and reserves. Tourists can explore rainforests, observe sea turtles nesting, or stay in eco-lodges that use renewable energy and support local farmers. This model has not only preserved Costa Rica's natural beauty but also reduced poverty in rural areas by creating jobs in tourism.

However, ecotourism is not without challenges. Some destinations market themselves as "eco-friendly" without implementing meaningful conservation measures, a practice known as "greenwashing." Travelers must be cautious and research companies before booking to ensure their tourism dollars support genuine environmental and community initiatives.

Additionally, even well-managed ecotourism can have negative impacts if visitor numbers exceed the carrying capacity of an area, leading to habitat disturbance or increased waste.

To practice responsible ecotourism, experts recommend choosing small-scale, locally owned accommodations, participating in guided tours led by local experts, and following the "leave no trace" principle by taking all trash with you and avoiding damage to plants and wildlife. By making informed choices, travelers can enjoy meaningful experiences while helping to protect the planet for future generations.

One of the most promising applications of AI in healthcare is medical imaging analysis. Machine learning algorithms can now identify patterns in X-rays, MRIs, and CT scans with accuracy comparable to trained radiologists. In a 2023 study published in The Lancet Digital Health, an AI system correctly detected early-stage lung cancer in 94% of cases, outperforming human experts by 8 percentage points. This technology enables faster diagnosis, especially in regions where radiologists are scarce, allowing patients to receive timely treatment.

AI is also accelerating drug discovery. Traditional drug development can take over a decade and cost billions of dollars, with a high failure rate. By analyzing large datasets of molecular structures and biological interactions, AI models can predict how potential drugs will interact with the human body, reducing the need for expensive laboratory experiments. For example, British pharmaceutical company Benevolent AI used AI to identify a potential treatment for amyotrophic lateral sclerosis (ALS) in just 12 months, a process that would typically take five to seven years.

Despite these advancements, several challenges hinder the widespread adoption of AI in healthcare. Data privacy is a major concern. Medical records contain sensitive personal information, and using this data to train AI systems raises risks of breaches or misuse. In 2022, a major healthcare provider suffered a data leak that exposed the medical records of over 1 million patients, many of which were being used to develop AI diagnostic tools.

Another challenge is algorithmic bias. AI systems learn from historical data, which may reflect existing inequalities in healthcare. For instance, an AI tool designed to predict patient risk of heart disease was found to underestimate the risk for female patients because the training data included more male patients. Such biases can lead to incorrect diagnoses or unequal access to treatment.

Additionally, integrating AI into existing healthcare workflows remains difficult. Many hospitals use outdated IT systems that cannot easily connect with AI tools, requiring significant investment in infrastructure. Healthcare professionals also need training to effectively use AI technologies, as over-reliance on algorithms without human oversight could compromise patient safety.

Looking forward, the potential of AI in healthcare is undeniable, but realizing this potential requires collaboration between technologists, healthcare providers, and policymakers. By establishing clear regulations for data privacy, addressing algorithmic bias through diverse training data, and investing in infrastructure and training, we can ensure that AI serves as a tool to enhance, rather than replace, human healthcare expertise.

But at the age of 14, a disaster struck. Lila fell during a practice session and broke her ankle. The doctor told her she might never dance again. Heartbroken, Lila threw away her ballet shoes and stopped attending her dance classes. She spent her days in her room, reading books and avoiding her friends. Her mother tried to encourage her, but Lila refused to talk about dancing.

Two years later, Lila's school announced a talent show. Her best friend, Mia, begged her to participate. "You don't have to dance," Mia said. "You could sing or play the piano." But Lila shook her head. She had lost interest in everything related to performing.

One afternoon, while cleaning out the attic, Lila found an old box of her mother's dance videos. Curious, she put one in the DVD player. There was her mother, young and graceful, performing on a big stage. Lila watched, tears streaming down her face. She remembered how happy dancing used to make her.

The next day, Lila went to see her former dance teacher, Ms. Sandra. "I want to try again," she said nervously. Ms. Sandra smiled. "I've been waiting for you to say that. Your ankle has healed, but we'll take it slow."

For months, Lila practiced for hours every day. It was painful at first, and she fell many times. But she refused to quit. Mia came to every practice, cheering her on. Her mother helped her stretch and massaged her ankle after each session.

On the day of the talent show, Lila stood backstage, her hands shaking. When her name was called, she took a deep breath and walked onto the stage. The music started, and she began to dance. At first, she felt nervous, but as she moved, all her fears disappeared. She danced with all her heart, just like she used to.

When the music stopped, the audience erupted in applause. Lila bowed, tears of joy in her eyes. Her mother and Mia were standing at the front, clapping and smiling proudly. After the show, Ms. Sandra hugged her. "You didn't just dance tonight, Lila. You showed everyone what courage looks like."

Lila knew then that some dreams are worth fighting for, no matter how many times life knocks you down.

Ancient Egyptian Treasures

Explore over 50 artifacts from ancient Egypt, including mummy masks and stone carvings. The exhibition runs from October 1st to October 20th. Tickets cost $5 for adults and $8 for students, but you can get a $2 discount if you book online three days in advance. Guided tours are available daily at 11:00 am and 2:00 pm, but tours require booking at least 24 hours ahead at the museum's information desk. Photography is not allowed in this exhibition.

Modern Art Revolution

This exhibition features works by 20th-century artists like Picasso and Dali. It opens on October 5th and ends on November 10th. Admission is free for all visitors, but you must wear a visitor badge which can be collected at the entrance. There will be a workshop on October 15th where participants can try painting in the modern style. The workshop is limited to 20 people, so sign up when you arrive. Cameras are permitted but without flash.

Natural History Wonders

Discover dinosaur fossils, rare minerals, and animal specimens from around the world. The exhibition starts on October 8th and lasts until October 31st. Children under 12 must be accompanied by an adult, and group visits ( over 10 people) need to be registered a week before. A special "Night at the Museum" event will be held on October 22nd, with tickets available from October 1st.

When my daughters reached the third and fourth grades, I sometimes allowed them to walk to and from school alone if the weather permitted. One warm spring day, a small friend followed them home after school. This friend had short legs and long floppy ears, with a furry coat and tiny spots across her nose. She was the cutest puppy I had ever seen and my girls begged me to keep her.

She was not more than twelve weeks old. She had no identifying marks of any sort. I didn't know what to do. I thought about running an ad in the lost and found but I really didn't want to. It would break the kids' hearts if someone should show up. Besides, her owners should have watched her more closely, I thought.

By the end of the week she was part of our family. She was very clever and good with the girls. The Following week something told me to check the lost and found section in the local paper. One particular ad caught my attention and my heart sank at what I read. Someone was searching for a lost puppy near our grade school. They sounded desperate. My hand shook. I could not ask myself to pick up the phone.

Instead, I pretend I hadn't seen the ad. I quickly put the paper aside and tried to ignore it. I never say anything about it to the kids or my husband.

By now we had named the puppy. She looked like a Molly, so we called her Molly. She followed the girls everywhere they went. When they went outside, she was one step behind them. When they did housework she was there to help.

There was only one problem with this perfect dog: my conscience (良心) was bothering me. I knew in my heart I had to call that number and see if our Molly was the puppy they were desperately looking for.

注意：

1. 所续写短文的词数应为150左右；

2. 续写部分分为两段，每段开头语已为你写好。

Paragraph 1:

With mixed feelings, I finally picked up the phone.

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Paragraph 2:

Opening the door, I saw a woman with a little girl sitting in a small wheelchair.

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1. 时间、地点；

2. 表演形式；

3. 报名方式。

注意：

1. 写作词数应为80左右；

2. 请按如下格式在答题卡的相应位置作答。

Notice

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The Students'Union

Chinese scientists have recently developed a new form of technology, can quickly and accurately measure the sensory qualities of pumpkins. This achievement, (make) by researchers from the Hefei Institutes of Physical Science, combines two advanced technologies, Near-Infrared Spectroscopy (NIRS) and Hyperspectral Imaging (HSI) .

(traditional) , pumpkin quality evaluation proved a slow and subjective process, with farmers often relying on cooking and tasting (measure) sweetness and other relevant factors. new method, however, allows for a more objective evaluation by analyzing critical elements like starch (淀粉) and moisture content.

In their efforts to develop this new type of technology, the team (collect) 97 pumpkin samples from 34 different pumpkins. (use) NIRS and HSI methods, they created predictive models to assess sensory quality based on the starch and moisture content in each pumpkin.

According the researchers, their current experiments are based on sliced pumpkins, while the new technique can also test quality without damaging the pumpkin.

Moreover, a researcher said that this technology could (apply) to other fruits and vegetables as well. "We are currently developing customized solutions based on specific (requirement) . For example, companies could use it to check sugar content in apples or vitamin levels in oranges. "