• 1、Engineers in the UK are going to build a new satellite____to track solar storms.
    A、designed B、designing C、to design D、having designed
  • 2、The children are encouraged to follow their natural____,and learn about what interests them.
    A、curiosity B、balance C、defence D、limitation
  • 3、Deng Jiaxian was one of the 23 scientists who____awarded for their extraordinary contributions to China's"two bombs,one satellite"project.
    A、was B、were C、has D、have
  • 4、____virtual reality becomes more accessible,many schools are setting up virtual science labs.
    A、As B、Until C、Unless D、Although
  • 5、—Let me try,captain!I won't let you down.

    —OK,Paul!____.

    A、You got me wrong B、It is your time to shine C、You must be kidding D、Mind your own business
  • 6、阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。

    Jack looked out of the car window when he and his mom passed their old neighborhood. His fingers tapped nervously on his backpack as his mom told him the moving company had found some lost boxes from their recent move, and she could get them that afternoon.

    A feeling of hope rose in Jack' s heart. He asked quietly if Big Dog might be in the boxes. Grandpa had bought the treasured toy dog for him at the fair three years before. Though now eight years old, Jack still needed his old friend back on the shelf above his bed, which had been empty since they moved.

    His mom said she wasn't sure. Her voice trembled as she added that the photo albums were confirmed lost by the company — all those precious pictures of festive occasions, birthday celebrations, and family gatherings were gone. Jack recognized that voice, the one that she used when trying to be strong. He knew what the albums meant to her. She promised to check the boxes carefully before picking him up, giving his shoulder a comforting pat (轻拍)。

    All day at school, Jack found it hard to sit still, his eyes constantly darting (瞟) to the clock. During math class, he missed Big Dog's lovely eyes. At lunch, he recalled Grandma's warm hug and bright smile from those lost photos. On the playground, his mind wandered back to the joy of their whole family together-laughing and running along the beach under a clear blue sky.

    As the art class bell finally rang, Mr. Light announced, "Today you are free to draw anything you wish." Jack stared at the blank paper, memories rushing back. The sad face of his mom popped up and then an idea came to him — maybe he could find a new way to save those memories.

    注意:

    (1)续写词数应为150个左右;

    (2)请按如下格式在答题纸的相应位置作答。

    He knew what he could draw.

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    After school, Jack rushed to his mom, with the drawing in his hand.

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  • 7、假定你是李华,你的英国朋友Chris计划拍摄Taste of China短视频系列推介中国美食,他想从"Famous Dishes"和"Street Snacks"两个拍摄主题中选择其一,现征求你的意见。请给Chris写一封邮件表达你的看法,内容包括:

    (1)你的选择;

    (2)说明理由。

    注意:

    (1)写作词数应为80个左右;

    (2)请按如下格式在答题纸的相应位置作答。

    Dear Chris,

    I'm thrilled about your Taste of China series!

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Yours,

    Li Hua

  • 8、阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

    Ben Davy has never been to China, but the Australian history teacher knows one of the country's top attractions is its Terracotta Warriors. So when a major exhibition on the life-sized clay figures opened in Perth, Davy waited with (excite) at the front of the long line at WA Museum Boola Bardip.

    The remarkable treasures (journey) to Perth in late June 2025 for the Terracotta Warriors: Legacy of the First Emperor exhibition. Recognized as the most significant event of its kind in the Australian state, the exhibition runs until February 22, 2026, (feature) more than 225 exceptional ancient Chinese items of the Qin Dynasty (221-206 BC), nearly half of have never left China before.

    During their visit, audiences can examine the warrior figures alongside rare objects of art, everyday life and ancient (ceremony). The experience is enhanced by cutting-edge multimedia that brings ancient stories life and offers breathtaking insights into the mysteries of the emperor's tomb, which remains untouched to this day.

    This exhibition, the fruit of long-term Sino-Australian cooperation, enables global audiences (engage) directly with China's ancient heritage. Set to welcome 180,000 visitors, it invites viewers to appreciate the (art) and technological achievements of ancient China, to reflect on how China's past informs its present.

    For Davy, opening-day wait was well worth the effort, just as the exhibition continues to amaze visitors today.

  • 9、​​​​​​​It was a cool Autumn night at London's Bridewell Centre. Emma Li's heart1 as the audience filled the seats. Her play Beyond Crossroads was about to begin.

    Working with five partners from Europe, Singapore and China, Emma was both producer and leading2. On top of rehearsing (排练) her lines, she had to3 budgets and promotion, which was incredibly4.

    The performance aims to explore cross-cultural works5 East and West influences, bringing6 stories to the international stage. Beyond Crossroads draws on Emma's personal experiences, reflecting on the growth and7 of cross-cultural youth. It tells the story of how a Chinese student Annie, whose family runs a large supermarket named Crossroads in London,8 between pursuing a law career and the expectation to take over the family business. The supermarket, Crossroads, is central to the play: a business9 from Annie's grandfather and a point of10 between personal ambition and family legacy (传承). The show captures the11 of young people facing family expectations and future decisions.

    In the final12 of the play, when Annie confidently appeared in a(n)13 wearing a lawyer's gown (袍), thunderous applause erupted throughout the theater. "This is my life! I think I should get to think what I really want," the audience kept saying, which inspired Emma a lot and she decided to continue bringing more14 cross-cultural stories to the stage.

    For Emma Li, the message of the play remains clear: it is about the15 to listen to your own heart, whether it leads you down a familiar path or an entirely new one.

    (1)
    A 、sank B 、raced C 、stopped D 、ached
    (2)
    A 、dancer B 、director C 、actress D 、manager
    (3)
    A 、ignore B 、limit C 、avoid D 、handle
    (4)
    A 、exciting B 、challenging C 、inviting D 、disappointing
    (5)
    A 、composing B 、considering C 、combining D 、comparing
    (6)
    A 、authentic B 、traditional C 、fictional D 、popular
    (7)
    A 、fears B 、regrets C 、choices D 、secrets
    (8)
    A 、distinguishes B 、balances C 、switches D 、struggles
    (9)
    A 、hung up B 、passed down C 、left behind D 、worked out
    (10)
    A 、conflict B 、understanding C 、communication D 、agreement
    (11)
    A 、joy B 、confidence C 、trouble D 、dilemma
    (12)
    A 、sight B 、setting C 、scene D 、shot
    (13)
    A 、courtroom B 、supermarket C 、apartment D 、store
    (14)
    A 、interesting B 、meaningful C 、fresh D 、local
    (15)
    A 、right B 、chance C 、ability D 、courage
  • 10、
    A Cleaner-Artist: Working to Live, Creating to Thrive

    At 5 am, 59-year-old Wang Liyun has already begun her morning reading. At 6 am, she is at work, cleaning office buildings. Within the daily routine of wiping windows and polishing stairs, she has created works such as "Broom and Starry Sky" and written poems like "The Weight of Dust."

    Even as she bends low to sweep away dust, she tries to show-through her words and paintings-what it means to live with courage, optimism, and burning passion. "Every corner I clean holds my dignity," she said, "while creating brings me great joy."

    Born into a Hunan farming family, Wang left high school early and hold various jobs. In 2017, after her daughter graduated, Wang followed her inner calling. Then in early 2020, carrying all her savings, she arrived in Beijing and became a cleaner in an office building. She carefully cleaned her assigned areas on weekdays, and then withdrew to a tiny tool room during breaks to read and paint. "Reading makes me energetic," she noted.

    Two years later, a video of her painting in that tool room went viral, bringing her into the public eye. Despite the attention, Wang still remains calm and clear-headed, committing herself to a simple life and continuing her creation. Since 2023, Wang has published three nonfiction collections and her first full-length novel.

    "I never separate dreams from day or night. I walk and dream, head held high. Painting to me is colored poetry; writing is even freer, full of imagination," Wang shared. Apart from her essential cleaning work, reading, writing and painting are the focal points of her schedule. For her, cleaning sustains her body but art lifts her soul.

    A. She traveled to Fujian alone to learn painting.

    B. This philosophy is reflected in her daily routine.

    C. However, her true passion always lay in creative expression.

    D. As a result, she became known online as the"cleaner-artist".

    E. She believes that hard work is the key to achieving one's goals.

    F. During her lunch break, she uses every spare moment to draw or write.

    G. Wang proves how one can live a fulfilling life within an ordinary routine.

  • 11、Colorful songbirds known as honeycreepers were once common in Hawaii. However, these native creatures are now struggling to survive because of avian malaria, a deadly disease spread by invasive (侵袭的) mosquitoes. Of the more than 50 species that once lived throughout the islands, just 17 remain today.

    Now, scientists have come up with a clever plan to help the birds. They are using drones to drop thousands of lab-grown, non-biting male mosquitoes engineered to carry a type of bacteria called Wolbachia that acts as mosquito birth control. When these special males mate with wild females, the resulting eggs will not hatch, which should reduce the overall mosquito population and give the birds a much-needed break.

    Since the "Birds, Not Mosquitoes" (BNM) project was started in 2023, over 40 million such mosquitoes have been released. Most of the mosquito drops have been made from helicopters. But recently, scientists began experimenting with eight-foot-long drones. A drone can't carry as many mosquitoes as a helicopter can — just 23,000 compared to 250,000 — but it's safer, because it doesn't require any humans to be on board. Drones are also easier to arrange at a moment's notice, which is a major benefit in an area with often unpredictable weather.

    The mosquitoes are being dropped inside small capsules. Each capsule contains roughly 1,000 males, which are kept alive inside a temperature-controlled transport box attached to the drone. Once released, they "fall to the forest floor where they provide protection to the mosquitoes until they're ready to fly away," says Adam Knox, a drone pilot involved in the project. "The capsules then begin to break down once exposed to wind and rain," he adds.

    This technique, previously used against human diseases, marks its first wildlife-saving application. With climate change pushing mosquitoes to higher altitudes — the last shelter for honeycreepers, time is running out. Several of the remaining honeycreeper species are highly endangered. Some die after a single bite from an infected mosquito. Thus, curbing the mosquito population with methods like the BNM project may be the birds' only chance to survive.

    (1)、What can be learnt about honeycreepers from paragraph 1?
    A、They spread avian malaria to mosquitoes. B、A mosquito-borne disease threatens them. C、Thirty-three species of them have died out. D、They are losing habitats to native creatures.
    (2)、What led to the shift to a new carrier in the project?
    A、Its success in previous similar projects. B、Its expanded carrying capacity and range. C、Its superior operational safety and flexibility. D、Its adaptability to various weather conditions.
    (3)、What does paragraph 4 mainly talk about?
    A、How to protect mosquitoes from diseases. B、How to deliver the lab-grown mosquitoes. C、How to lessen the project's impact on nature. D、How to control the temperature of containers.
    (4)、What does the underlined word "curbing" in the last paragraph mean?
    A、Wiping out. B、Keeping track of. C、Coexisting with. D、Keeping under control.
  • 12、As part of its series to prepare students for the future, Stanford University has invited Mike, a 2024 graduate, to share his views. Currently working as a development analyst at an affordable housing organization serving communities in California and Seattle, Mike brings his story to the table.

    Growing up in affordable housing with his family, Mike felt the benefits of a stable living environment. But he saw other people — relatives and friends — who were constantly moving, living in overcrowded apartments, and even being priced out and having to move elsewhere. That made him realize housing is an important issue and drove him to be a part of addressing those challenges that cities face.

    Since he started the job in February, Mike has cooperated with local governments to develop plans to construct and fund new affordable housing. His work involves understanding complex policies, researching partnerships and analyzing land suitability. "It is really interdisciplinary, as it connects policy, urban design, and social needs. I'm learning new things every day. Affordable housing is a way to make cities more sustainable, not just economically but also environmentally, by shortening journeys to work or building energy-efficient houses. It motivates me to know that this hard work will eventually result in people being housed, which has widespread effects in communities and families," he notes.

    Fortunately, the great courses taken in university have prepared him for his role, everything from real estate law to real estate development and finance through the civil engineering department. "The courses are probably the most relevant to what I am doing now, helping me understand my own experience and think about how I want to channel that into a career," he mentions.

    For students interested in pursuing a similar path, Mike stresses taking project-based courses is helpful. He also urges students to apply to career-building programs due to more opportunities for guidance, work experience and networking with other people who may be their future colleagues.

    (1)、What primarily inspired Mike to work on affordable housing?
    A、His college courses. B、His green values. C、His career ambition. D、His housing experience.
    (2)、Which of the following words can best describe Mike's job?
    A、Demanding but rewarding. B、Routine but influential. C、Independent and profitable. D、Specialized and eco-focused.
    (3)、What does Mike intend to do according to the last paragraph?
    A、To promote courses. B、To highlight challenges. C、To stimulate interest. D、To provide suggestions.
    (4)、From which section of a magazine is the text probably taken?
    A、Campus Life. B、Career Insights. C、Social Issues. D、Academic Features.
  • 13、The gradual return of the private buyer to the new car market helped to push up sales as number plates changed in March.

    Most car buyers in March also changed their preferences for vehicle types, with a particular focus on how the vehicles are powered. Electric vehicles, including fully electric cars and hybrids, are gaining significant popularity. Sales of petrol cars now account for less than half of the market. While the government policymakers have pushed people to buy fully electric zero-emission (排放) cars, many consumers appear to choose hybrids instead, which are partly battery-powered but also carry petrol engines. With the growing popularity, the sales of hybrids now are on the rise. Here is the pie chart illustrating the sales proportion of vehicle types in March 2025.

    Sales of fully electric cars hit a new monthly record, up to about 69,000 in March 2025, yet their market share dropped to just over 20% for the first quarter, as the popularity of hybrids grew even faster. That is a crucial number, because car makers have to sell 28 percent of their cars as zero-emission models in 2025 or face fines of up to £15,000 for every car they fail to sell to meet the government's requirement.

    Nick, an analyst in the local auto industry, believes electric car sales are being artificially increased, mainly because car makers are cutting prices just to hit their sales targets. Meanwhile, many people rushed to buy cars before a new tax on expensive cars started this week.

    "Car makers remain committed to the market decarbonisation (碳减排) that the country and the environment demand but we need sustained growth, not a short-term bubble (泡沫) driven by unsustainable discounting and drivers rushing to avoid higher taxes," said Nick. He also believed that the government policymakers should consider the "natural demand" for electric cars.

    (1)、What was the percentage of electric vehicles sales in March 2025?
    A、19%. B、45%. C、28%. D、20%.
    (2)、What is the major reason for the increase in electric car sales according to Nick?
    A、A new tax on cars. B、The change of number plates. C、The reduction of car prices. D、Policies pushing for electric cars.
    (3)、What will Nick agree with about the government's electric car policy?
    A、Ignoring the decarbonisation. B、Strengthening the discounting policy. C、Taking the market needs into account. D、Setting a lower zero-emission sales standard.
  • 14、阅读下面材料,根据其内容和所给段落开头语续写两段,使之构成一篇完整的短文。

    Born and raised in the US, I often heard my father talk about the history, ancient traditions and warm-hearted people of his homeland — China. When he shared those, his eyes always lit up, which planted a seed of curiosity in my heart. At 18, I went to China as an exchange student, eager to explore the country he loved. I had thought the journey would be easy, yet cultural gaps soon made me feel lost and out of place.

    Those subtle differences between my life in the US and here soon made daily life feel like a series of small challenges. Every morning when I walked into the classroom, classmates would lean over and ask, "Did you sleep well last night?" or "What did you have for breakfast?" I'd freeze for a second, not knowing how to respond. In the US, we'd just nod and say "Hi" without digging into such personal details. I'd mumble a quick "Fine" and hurry to my seat, not knowing the "right" ways to reply.

    I also struggled with the use of chopsticks and misread a classmate's kind reminder as a criticism. All these small discomforts piled up, leaving me confused and lonely. One night, I couldn't hold back anymore and called my father, pouring out all my frustration and confusion. He gently said, "It's not about fitting in, but understanding."

    Hearing his words, I realized what matters. I decided to embrace Chinese culture with an open heart. I turned to my father for more stories about his hometown, spending 30 minutes every morning learning Chinese characters. My Chinese friends taught me how to use chopsticks properly, took me to try local snacks, and explained the meaning behind some idioms.

    注意:

    (1)续写词数应为150左右;

    (2)请按如下格式在答题卡的相应位置作答。

    Gradually, I came to understand Chinese culture.

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Back in the US, I couldn't wait to share this experience with my classmates.

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  • 15、假定你是李华。你的外国朋友Chris在社交媒体上看到你分享的班级三月活动照片,发邮件表示好奇。请你用英语给他回复一封邮件,内容包括:

    1.简述一项春日主题活动及其具体细节;

    2.活动的意义和启发。

    注意:

    (1)写作词数应为80个左右;

    (2)请按如下格式在答题卡的相应位置作答。

    Dear Chris,

    __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Best wishes,

    Li Hua

  • 16、阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

    Peking opera (be) one of China's most treasured cultural heritages over the past 200 years. In an era dominated by digital entertainment, the ancient art is experiencing a remarkable return, thanks to the (devote) of young performers like Zhang Wanting. This actress shows the combination of centuries-old tradition with modern appeal, (demonstrate) how classical art forms can remain relevant today.

    Zhang's command of the "chair trick", a (represent) move of the Song School, stands for the strict training required in this art form. This trick, involves complex balancing and posing on a narrow chair handle, demands years of hard practice and represents the highest level of physical control and art expression in Peking opera.

    Despite facing fierce competition from modern forms of entertainment, Peking opera continues to attract audiences through (it) unique mix of music, body movement, dance, and acrobatics (杂技). Young (art) like Zhang are at the forefront (前沿) of this cultural preservation, adding fresh understanding to traditional techniques (ensure) the continued value and appeal.

    The lasting charm of Peking opera lies not just in its great displays of skill, in its ability to convey deep emotions through special performance. As Zhang and her peers show, the art form's capacity to evolve while keeping its core traditions is the key its survival and growth in the digital age.

  • 17、​​​​​​​"Do you remember me?" That Friday email came 34 years after we first met. "I think of you often," I replied. How could I1 Andrea? She was the 8-year-old girl I met on the night of a 1990 plane2. That evening changed us both.

    3 to the hospital, I found the emergency room4 with an unknown number of survivors, some crying, some5 and others staring blankly in sorrow. In the ICU, an injured girl6, "Am I going to die?" "No," I replied. With a look of7 that I'll never forget, she asked, "May I go to sleep?" I nodded.

    During her hospital stay, I brought her picture books and sat with her through nightmares. She often held my hand8, afraid I'd leave. One night, she drew me a small flower on a napkin and smiled, "This is for you, so you never forget me." Gradually, we formed a deep9.

    I visited her three times daily. She would call out my name — "Fornari!" at the10 of me. After11, she returned to her homeland. Nine years later, at 17, she visited me and12 her dream — to help children as I had helped her —13 by the care she'd received.

    Years later, she emailed me: "I thought of how I fell out of the sky, and how you14 me." We spoke on video for 30 minutes. I was left feeling humbled and grateful for having connection with this child. As a doctor, I often wonder whether I've made a15 in patients' lives. With Andrea, I know.

    (1)
    A 、believe B 、forget C 、recognize D 、accept
    (2)
    A 、trip B 、route C 、crash D 、delay
    (3)
    A 、Rushing B 、Wandering C 、Calling D 、Sending
    (4)
    A 、equipped B 、packed C 、covered D 、dotted
    (5)
    A 、laughing B 、jumping C 、running D 、weeping
    (6)
    A 、shouted B 、remarked C 、whispered D 、announced
    (7)
    A 、confusion B 、fear C 、sadness D 、relief
    (8)
    A 、gently B 、slightly C 、tightly D 、happily
    (9)
    A 、insight B 、bond C 、agreement D 、gap
    (10)
    A 、sight B 、thought C 、sound D 、call
    (11)
    A 、treatment B 、research C 、operation D 、recovery
    (12)
    A 、realized B 、remembered C 、shared D 、achieved
    (13)
    A 、inspired B 、moved C 、persuaded D 、reminded
    (14)
    A 、caught B 、saw C 、taught D 、found
    (15)
    A 、decision B 、choice C 、mistake D 、difference
  • 18、
    Reading: A Secret to Health and Long Life

    Are you looking for a simple habit that can transform your health? You may know the joy of reading, but there are even more unexpected ways reading will positively affect your body and mind.

    Studies prove regular book readers live nearly two years longer than non-readers. Reading lowers stress and provides a sense of social connection, both vital for healthy aging. Reading books for more than 3.5 hours per week is linked to a 20% lower risk of death. Even 15 minutes of reading before bed can calm your nervous system, helping you sleep better and live longer.

    ● You can boost brain power with daily reading.

    Reading builds mental strength, which helps protect your brain to resist age-related decline. It also sharpens working memory, attention, and empathy by placing you in different characters' lives. Treat reading like everyday exercise — just 10 to 30 minutes a day strengthens mental skills over time.

    ● You can start reading from birth for lifelong health.

    Reading aloud with babies and young children helps their brains grow and reduces harmful stress. Doctors and nurses should encourage shared reading beginning from birth as a cost-effective, evidence-based strategy to lay the foundation for lifelong health. Children who see books as comfort and connection often carry the habit into adulthood.

    ● You can make reading a simple habit.

    The secret to getting the most from reading is doing it often, not reading a lot at once. Choose books you truly love, schedule short reading time, and remember — it is never too late to start. Each page is an investment in a longer, healthier life — start today.

    A. The benefits of reading begin early.

    B. Reading may be just the thing you need.

    C. You can live longer by reading regularly.

    D. You can read as much as possible every day.

    E. Experts agree that small, enjoyable daily routines matter most.

    F. The more you challenge yourself with books, the healthier you become.

    G. This daily mental workout protects your brain and boosts focus and strength.

  • 19、Have you ever wondered if animals "see the world" in the same way we do? According to a new study, the answer is no — not only do animals perceive their surroundings differently, but they also experience time itself at greatly different speeds. The research studied 237 animal species and found that an animal's lifestyle strongly influences how fast it processes visual information.

    The speed of visual perception (感知) is measured using a universal standard called "critical flicker fusion (CFF)", which refers to the fastest rate at which a flickering light can be seen as separate flashes, not a continuous light. For instance, humans can perceive flicker (闪烁) up to about 60 flashes per second, while some birds and insects can detect over 200 flashes. That means they see the world in much finer detail in terms of time, almost like watching slow motion.

    The study uncovered several key findings. Flying species tend to have the fastest visual processing — about twice as fast as non-flying animals. Predators (捕食者) that chase fast-moving prey also have quicker vision compared to animals feeding on slow or stationary food. In addition, animals active in bright daylight generally have faster vision than those living in dark or deep-water environments. These differences are not random. Scientists believe they are shaped by evolution to match each animal's ecological needs. Undoubtedly, faster visual processing brings great survival benefits: it allows animals to react instantly when flying, hunting or escaping. However, it comes with a high cost, as rapid neural processing consumes huge amounts of energy.

    The findings also raise concerns about the impacts of artificial lights, which flicker at rates invisible to humans but may disturb animals with fast visual system by affecting their hunting success, navigation, and predator-prey interactions.

    "Understanding how animals perceive time helps us understand how they behave, evolve, and respond to environmental change," said lead author Dr Haarlem. "It also reminds us that the world we experience is just one version of many."

    (1)、What is CFF according to the text?
    A、The point of light invisible to animals. B、The number of light flashes per second. C、The frequency of light flickering in nature. D、The standard for visual perception speed.
    (2)、Which of the animals processes visual information fastest?
    A、An eagle. B、A fish. C、A snake. D、A tiger.
    (3)、What negative effect may artificial lights have on animals?
    A、They make all animals lose their way. B、They prevent animals from hunting. C、They disturb animals' survival activities. D、They do harm to animals' visual system.
    (4)、What do Dr Haarlem's words imply?
    A、Humans perceive time in the most advanced way. B、The real world is far more diverse than humans perceive. C、Animals experience the world in the same way as humans do. D、Animals' perception of time decides their living environment.
  • 20、Plastic has earned its bad reputation due to pollution, yet it remains fundamental to modern life — from medicine and electronics to transportation. Its production, however, relies on fossil fuels and contributes to climate change.

    Bioplastics, often seen as a green alternative, present their own challenges. They typically require industrial treatment to break down, and their production process often results in more carbon emissions than traditional plastics. Growing crops for bioplastics also consumes resources like water and fertilizers, which can lead to water pollution. Furthermore, mixing bioplastics with regular recycling can ruin streams, rivers and oceans.

    A more promising solution is emerging: making plastic from carbon dioxide (CO2). "Instead of using fossil fuel, you can turn the industry on its head by using waste carbon dioxide," says Professor Peter Styring, who researches this technology. This approach not only reduces fossil fuel use but also helps lower greenhouse gas emissions by using captured CO2.

    Scientists are developing special helpers to transform CO2 into various plastics. For example, companies are already producing polyurethane foam (聚氨酯泡沫)using CO2 as a raw material. These new materials are just as good as or even better than the quality of conventional plastics in some aspects, such as flame resistance. Economically, using cheaper CO2 instead of traditional raw materials could save millions.

    Research continues to expand the possibilities. Some teams are aiming at producing ethylene — a key ingredient for half the world's plastics — from CO2, water, and electricity. Others are developing safer, sugar-based plastics for medical use. While large-scale commercial production may take years, this innovative path offers a potential route to more sustainable plastics, addressing both waste and climate concerns.

    (1)、What is a disadvantage of bioplastics?
    A、Higher production costs. B、Higher carbon footprint. C、Complex recycling process. D、Limited product applications.
    (2)、What can be inferred about plastics made from CO2?
    A、They're the cheapest option available. B、Their quality is worse than traditional plastics. C、Their production technology is fully developed. D、They bring environmental and economic benefits.
    (3)、Why is "ethylene" mentioned in the text?
    A、To detail its chemical properties. B、To show its environmental harm. C、To highlight a key research target. D、To compare it with polyurethane.
    (4)、What can be a suitable title for the text?
    A、Problems of Bioplastics B、Future of Carbon Dioxide Use C、New Path for Plastic Production D、Ending Our Dependence on Plastic
上一页 12 13 14 15 16 下一页 跳转