• 1、Neil Dancer, ________ parents are both teachers, won first prize in the competition.
    A、whom B、whose C、which D、that
  • 2、Alice, as well as her parents, ________ to Greece for their holiday in the coming holiday.
    A、are flying B、fly C、flew D、is flying
  • 3、Social problems in modern society are mounting.
    A、攀升 B、攀登 C、山峰 D、安装
  • 4、The average adult man burns 1,500 to 2,000 calories per day.
    A、平均数 B、平均的 C、中等的 D、普通的,平常的
  • 5、We should recognize strengths in others and show due respect for them.
    A、到期的 B、预期的 C、应有的 D、因为,由于
  • 6、Emperor Qinshihuang united the seven major states into one unified country.
    A、主修,专攻 B、重大的,主要的 C、主修科目 D、专业
  • 7、She decided to apply for the job after learning about the company's excellent benefits and culture.
    A、申请 B、应用 C、涂抹 D、用力压
  • 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。

    A few years back, I enjoyed my summer vacation at New York's Harriman State Park with a good friend. The place we were going to was the beautiful Lake Sebago. It was certainly a nice place with tent platforms, a number of kayaks and swimming areas. It was very (convenience) for us to fish there.

    As soon as we reached the best nearby fishing spot, my friend began unloading the baggage, and passed me a fishing pole. There was a piece of red cloth that was attached it. I positioned the pole in what I considered (be) the perfect place and attempted to cast (扔) the line in the water. After just a few failed attempts, I finally had it down. Soon a 10-inch bluegill (蓝腮太阳鱼) caught it. Feeling excited but nervous, I thought that I was capable of (pull) it up though it was quite (challenge). The water was rather shallow (浅), so the fish wasn't able to sink down or actually run with the line. Even though it jumped out of the water several times during my struggle with this very first fish, I was still able to hold on patiently.

    At this time, my friend began running around the dock like a child madly in search of something. I never realized what that reaction was about until he shouted at me with an excited look on his face, "Hey, man, congratulations to you. You are (absolute) great. This is the biggest fish that (catch) by us since half a year ago. "

    I caught a total of six fish that day. Since then, I've come to appreciate the magical feeling of casting a line and then waiting, expecting to see the fish that I might meet with at the end of my pole. There are many benefits from fishing beside a lake or a river. It is both an (recreate) and an entertainment. I am never fed with such an outdoor activity.

  • 9、It was a freezing winter day when a space heater caused a fire in a high-rise apartment building. The fire was small, but it1 huge heavy smoke. Because a broken fire door was left2, it took just minutes for the entire building to become a death3 for the people inside.     

    Before firefighters' arrival, people4 to evacuate the smoking building. Single mother-of-two Kristin was one of the hundreds of people5 to get out of the building. As she tried to carry her two young children down the crowded6 from her apartment, a stranger appeared out of nowhere and asked if she needed7. The man is Francis, who lived on the building's top floor. He was running for his8 and when he saw Kristin and her daughters he9 that he couldn't just leave them there to struggle for themselves.10, he picked 3-year-old Kween up and took off down the stairs quickly.11 helped Kristin and her other child12 it out not long after Francis and Kween got out. Kristin couldn't13 what could have happened if Francis hadn't stopped to help.

    Many people might have been so14 by the fire that they might just care about themselves15 danger, but this man kept his eyes open and didn't hesitate (犹豫) to lend a hand.

    (1)
    A 、experienced B 、prevented C 、produced D 、attracted
    (2)
    A 、open B 、closed C 、behind D 、alone
    (3)
    A 、march B 、game C 、blow D 、trap
    (4)
    A 、attempted B 、failed C 、happened D 、continued
    (5)
    A 、struggling B 、waiting C 、shouting D 、refusing
    (6)
    A 、corner B 、room C 、windows D 、stairs
    (7)
    A 、advice B 、help C 、shelter D 、escape
    (8)
    A 、job B 、life C 、meal D 、freedom
    (9)
    A 、remembered B 、wondered C 、realized D 、feared
    (10)
    A 、However B 、Therefore C 、Anyhow D 、Besides
    (11)
    A 、Policemen B 、Soldiers C 、Officials D 、Firefighters
    (12)
    A 、work B 、check C 、stick D 、make
    (13)
    A 、imagine B 、sense C 、express D 、bear
    (14)
    A 、excited B 、frightened C 、annoyed D 、confused
    (15)
    A 、in place of B 、in spite of C 、in case of D 、in face of
  • 10、Mountain

    A mountain is a landform that rises high above its surroundings. Taller than a hill, it usually has steep slopes and a rounded or sharp peak. Mountains are rarely found alone. Lines of ranges form mountain belts.

    Some mountains were formed by the activity of volcanoes. Scientists believe that most volcanic mountains are made up of rock that melted deep within earth. The rock rose through Earth's surface, or crust. It then flowed onto the surface in the form of lava. Volcanic mountains are typically steep. Mount Fuji in Japan, Mount Kilimanjaro in Africa, and Mount Rainier in the United States are examples of volcanic mountains.

    Other mountains were formed by movements within Earth's crust. The theory called plate tectonics explains this type of mountain building. Earth's crust is divided into huge pieces called plates, which move very slowly. The continents sit on top of the plates and move with them. At times the plates strike against each other, forcing the rock upward. The Himalayas of Asia are an example of this type of mountain chain.

    Mountain ranges are natural barriers to travel. Roads are difficult to build across them. Railroads need expensive tunnels to cross even low mountains. They often form borders between countries.

    Life is hard in mountain lands. The high places of the world are cold and have little soil, making farming difficult. Skiing and climbing are popular mountain sports.

    A. Groups of mountains are called ranges.

    B. However, many mountain areas are vacation spots.

    C. The lava, along with volcanic dust, built up to form mountains.

    D. These colder climates strongly affect the ecosystems of mountains.

    E. Thus the continental crust is normally much thicker under mountains.

    F. Therefore mountain ranges tend to divide the people on either side of them.

    G. They were formed when a plate carrying India struck against the Asian plate.

  • 11、I start every summer with the best of intentions:to attack one big book from the past, a classic that I was supposed to have read when young and ambitious. Often the pairings of books and settings have been purely accidental: "Moby Dick" on a three-day cross-country train trip: "The Magic Mountain" in a New England beachside cottage with no locks on the doors, no telephones or televisions in the rooms, and little to do beyond row on the salt pond. Attempting "The Man Without Qualities" on a return to Hawaii, my native state, however, was less fruitful: I made it through one and a quarter volumes (册), then decided that I'd got the point and went swimming instead.

    But this summer I find myself at a loss. I'm not quite interested in Balzac, say, or "Tristram Shandy." There's always War and Peace, which I've covered some distance several times, only to get bogged down in the "War" part, set it aside for a while, and realize that I have to start over from the beginning again, having forgotten everyone's name and social rank. How appealing to simply fall back on a favorite-once more into "The Waves" or "Justine," which feels almost like cheating, too exciting and too much fun to properly belong in serious literature.

    And then there's Stendhal's "The Red and the Black," which happens to be the name of my favorite cocktail (鸡尾酒) of the summer, created by Michael Cecconi at Savoy and BackForty. It is easy to drink, and knocking back three or four seems like such a delightful idea. Cecconi's theory: "I take whatever's fresh at the green market and turn it into liquid." The result is a pure shot of afternoon in the park, making one feel cheerful and peaceful all at once, lying on uncut grass with eyes shut, sun beating through the lids...

    (1)、What can we infer about the author from the first paragraph?
    A、He has a cottage in New England. B、He shows talents for literature. C、He enjoys reading when traveling. D、He admires a lot of great writers.
    (2)、What do the underlined words "get bogged down" in paragraph 2 mean?
    A、Get confused. B、Be carried away. C、Be interrupted. D、Make no progress.
    (3)、Why does the author say reading his favorite books feels like cheating?
    A、He finishes them quickly. B、He should read something serious. C、He barely understands them. D、He has read them many times before.
    (4)、What can be a suitable title for the text?
    A、The Books of Summer B、My Summer Holidays C、To Read or Not to Read D、It's Never Too Late to Read
  • 12、For quite some time I have had an interest in the situation of the homeless. I have read about it,prayed over it,and have done small things to help. But feeling that I could,and should,do more to make a difference,I concluded that living as a homeless man-at least for a very brief period-was the best way to understand what it's like to have no place to call home.

    I decided that St. Vincent de Paul Catholic Church would be my first stop. Since the church opens its basement to homeless people every Friday for a hot meal,St. Vincent's was symbolically a very good place to start my day as a homeless man.

    After praying before the Blessed Sacrament,I hit the subfreezing streets with no money. I got into a line of men,women and children waiting to be admitted into the dining room where a free hot meal is served every day.

    From there I walked to Health Care for the Homeless—an organization dedicated to providing free medical care to people who have no permanent residence. Inside were about 75 homeless women and men waiting to be seen by a nurse. There I spoke with an older man who had serious family problems that caused his homelessness.

    Next,I stopped at a hotel and fast food restaurant asking if they were hiring. From there I walked the streets of downtown Baltimore asking people for a little loose change to buy a cup of coffee. I politely approached approximately 35 people. About 30 of them ignored me,and said they didn't have any money,or simply said no. But five people did offer me a small donation. I explained what I was doing,and thankfully declined their generosity.

    Later that night,as I walked back to my vehicle,I realized that I was a richer person for having lived one day as a homeless man. I thought about the homeless men and women I encountered,and their problems.

    (1)、Why did the author decide to make a start from the church?
    A、Only it offered the homeless a hot meal. B、It impressed the author in many ways. C、It had a routine of opening to the homeless. D、Many homeless people were allowed to live in the basement.
    (2)、What did the author do while he was in Health Care for the Homeless?
    A、He had a word with a homeless man. B、He helped an older man with family problems. C、He knew it was too miserable to have no money. D、He had a hot meal with some women and children.
    (3)、What can we infer from the fifth paragraph?
    A、The author worked a few hours in the restaurant. B、People should have cared about the homeless more. C、No food restaurants agreed to hire a homeless man. D、Very few people looked down upon the homeless.
    (4)、What would the author most probably do in the future?
    A、He would treasure what he had got in life. B、He would spend more time with the homeless. C、He would find a better way to help the homeless. D、He would frequently invite the homeless to his home.
  • 13、Life experiences can show one's "grit"(坚韧). Complex challenges early in life helped the following people develop skills that got them to the top of their professions.

    Ursula Burns, Chairwoman, VEON; Former CEO, Xerox

    Her family was so poor that her single mother traded office cleaning for health care. But Burns' early gift for math won her a scholarship and an internship at Xerox, where she would compete her way to the top. "I'm a black lady from the Lower East Side," she says. "Not a lot scares me."

    Howard Schultz, Executive Chairman, Starbucks

    Schultz grew up in public housing in Brooklyn, surrounded by poverty, and was the first in his family to go to college (on a football scholarship). After training in sales, he set up the company that would later buy Starbucks. "In the course of the year I spent trying to raise money, I spoke to 242 people, and 217 of them said no." he said.

    Sean Combs, CEO, Sean John

    Combs began a generation of hip﹣hop talent and made a lasting influence on fashion. But his story could have turned out much differently: his drug dealer father was killed when he was 3. "It made me work even harder." he recently said.

    Geisha Williams, CEO, PG&E

    Her parents fled Cuba when Williams was 5. By 7, she was her parents' main translator in talks with lawyers and accountants at grocery stores they owned in New Jersey. The experience did help her. "I went from thinking I could be a manager to thinking I could do something much bigger." she told Fortune.

    (1)、Who did best in math at school?
    A、Combs. B、Burns. C、Schultz. D、Williams.
    (2)、How did the death of Combs' father influence him?
    A、It made him a failure. B、He became a drug dealer. C、It made him even stronger. D、He became a hip﹣hopper.
    (3)、What can we learn from the passage?
    A、Cuba is a good place to do business. B、No one wanted to help Schultz at first. C、Poor family kids can be successful easily. D、Difficulty in life pushed Williams forward.
  • 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。

    The smell of roasted chicken filled the kitchen as we gathered for our usual Friday dinner. Having swallowed a big mouthful of chicken, I took a deep breath and began, "Could I invite some friends over tomorrow? Just for the afternoon?"

    My parents exchanged a glance, then nodded readily. But beside me, my younger sister, Lily, froze. Her wide eyes locked onto mine. "But... what about Miracle? She'll be terrified, Ethan."

    Miracle was a cat Lily rescued on a rainy day last winter. True to her name, the cat had survived. Yet, it remained a creature of profound shyness: Loud voices sent her trembling under beds; sudden movements made her jump. She wasn't just a pet; she was a fragile soul Lily fiercely protected.

    "I promise, Lily," I insisted, leaning forward, meeting her worried gaze(凝视). "We'll stay in the living room. No loud music, no shouting games. I'll keep the back door shut tight, and I'll warn everyone to be quiet. Miracle won't even know they're here." I saw the conflict in her eyes — her desire to be supportive warring with her deep concern for the poor cat. After a tense silence, she finally gave a small, reluctant nod.

    Saturday arrived with sunshine and laughter as my friends piled in. True to my word, I guided them straight to the living room, reminding them firmly about Miracle's sensitivity.Initially, we chatted, played cards quietly. Glancing around, I spotted Miracle sliding silently down the hallway towards Lily's room. Good, she's keeping her distance, I thought, relieved.

    As the afternoon wore on, however, the initial caution disappeared. A competitive board game led to enthusiastic cheers and laughter. Lost in the sheer fun of being with my friends, I forgot everything - he promise, the fragile creature.

    After friends departed with cheerful goodbyes, I began tidying empty glasses, still lost in the happy scenes when Lily burst through the front door into her room. Then came her scream, "Ethan, Miracle is gone."

    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。

    A cold wave of fear rushed through me.

    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Luckily, we finally found Miracle in the backyard.

    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  • 15、假如你是李华,上周五你参加了学校举办的"旧物改造创意比赛(upcycling competition)",请你给你的英国笔友Frank写信分享,内容包括:

    (1)你的参赛作品;

    (2)感受和收获。

    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 Frank,

    ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

    Yours sincerely,

    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。

    Over the past few years, a fascinating cultural phenomenon (emerge) across China: a growing number of foreign tourists are (enthusiastic) embracing traditional Chinese clothing like Hanfu. At iconic sites such as the Forbidden City, visitors can (see) dressed in exquisite Hanfu, posing for photos against historic backdrops. This trend reflects a deeper appreciation for profound cultural heritage rather than mere curiosity.

    This stylish wave is also taking over short video platforms like TikTok,, observers say, is a symbol of China's booming national confidence. On TikTok, the Hanfu hashtag (话题标签) has collected billions of views, foreigners sharing their photoshots and expressing how wearing Hanfu makes them feel like super stars in Chinese dramas. Meanwhile, Chinese content creators and bloggers have been actively promoting Hanfu overseas, organizing activities (introduce) the stories behind the clothing.

    This exchange is mutually enriching: foreigners gain meaningful immersion into Chinese traditions, Chinese youth find creative channels to share their heritage. The (blend) of traditional clothing with modern fashion and media has not only boosted cultural confidence but also created new consumption scenarios, turning Hanfu into a dynamic symbol of (China) soft power.

  • 17、Motivation is delicate. When you notice your motivation fading, you have to make a small adjustment, which can make all the difference between1 something or not.

    I learned this lesson from a drive to a picturesque mountain range that lies just an hour from my city. However, the road there is dangerously2, with sharp turns every few seconds. Driving through it was once a3. My child often got carsick, while4 local drivers followed closely on my tail. The short journey always left me exhausted, and my motivation to visit5.

    One day, I tried a new approach: I drove really6. It helped my child, but the line of cars in my mirror still7 me out. Feeling pressured, I would speed up again. So then I made one small adjustment: I tilted the rearview mirror up,8 the view behind me.

    That simple method9 everything. I could finally enjoy the drive at my own10, appreciating the scenery. While cars occasionally pulled ahead whenever they could, they were no longer my main11. Each crossing of the mountains has now become a journey of peace.

    I've reflected a lot since then. I've realized that we are often demotivated by12 pressures — be they social media, distracting environments, or13 voices, much like those cars filling up my mirror. Learning to occasionally "tilt the mirror" — to consciously tune out the14 of others — is essential to protecting our drive and15 at our own pace.

    (1)
    A 、achieving B 、defining C 、adopting D 、acknowledging
    (2)
    A 、smooth B 、winding C 、narrow D 、straight
    (3)
    A 、adventure B 、struggle C 、routine D 、pleasure
    (4)
    A 、impatient B 、skilled C 、careful D 、polite
    (5)
    A 、set in B 、showed up C 、slipped away D 、moved out
    (6)
    A 、quickly B 、efficiently C 、aggressively D 、slowly
    (7)
    A 、helped B 、calmed C 、cheered D 、stressed
    (8)
    A 、reflecting B 、expanding C 、avoiding D 、recording
    (9)
    A 、changed B 、worsened C 、increased D 、removed
    (10)
    A 、cost B 、rhythm C 、expense D 、risk
    (11)
    A 、hobby B 、solution C 、gift D 、concern
    (12)
    A 、external B 、internal C 、mental D 、physical
    (13)
    A 、encouraging B 、discouraging C 、reassuring D 、distant
    (14)
    A 、silence B 、advice C 、noise D 、praise
    (15)
    A 、crossing B 、accelerating C 、advancing D 、returning
  • 18、For individuals with social anxiety, entering a social gathering can feel overwhelming, as if you are under the spotlight and might say something wrong. "For some people, it might mean a racing heart and dizziness and feeling flushed," says Kirsten Hall-Baldwin, a licensed clinical professional counselor in Chicago. "Others might be in a negative thought cycle, or feel like their mind is going blank or freezing." Here, she and other experts share tips on how to carry a conversation when you have social anxiety.

    Practice in low-stakes settings

    Before attending a major event, try initiating brief chats with waiters or neighbors. "Smaller, manageable social interactions don't carry as much emotional weight," Hall-Baldwin says. "so it's just trying to practice without feeling overwhelming pressure." Over time, you'll gain a sense of comfort and confidence as you step into larger social settings.

    Use the echo technique

    Another powerful technique is to "echo" the speaker. Paraphrase what they've said and encourage them to clarify. For example, if they mention they're struggling at work, repeat back their words with a question in your voice: "Struggling?" Not only does this make them feel heard but also shifts the conversational burden away from you, reducing pressure.

    Find an anchor

    When feeling anxious, find a physical anchor (锚). Holding a cold drink, pressing your feet firmly into the floor, or touching a small object can give your nervous system something to anchor to when you're feeling anxious. Research indicates that such physical sensations can pull you back to the present and signal safety to your brain, thereby curbing anxiety.

    The good news about social events is that they all eventually end — and your departure can arrive as soon as you'd like. Informing friends beforehand of a hard leave time, or having a polite excuse to end a conversation (e.g., "It was really nice talking to you — I'm going to check in with Jane.") can significantly reduce the fear of being trapped.

    A. Avoid social events politely

    B. Have an exit strategy ready

    C. This simple response often leads them to share more.

    D. This fear can trigger various physical and emotional symptoms.

    E. It ensures you can keep the dialogue flowing without needing to flee.

    F. These short interactions can be a low-pressure way to build self-esteem.

    G. The core principle is to engage your senses to stabilize yourself in the moment.

  • 19、Much has been discussed about how modern lifestyles lead to insufficient sleep, unlike our ancestors who lived in simpler times. However, an analysis of 54 global sleep studies reveals that individuals in small, non-industrial societies actually sleep less than those in more industrialized regions.

    "Everyone I speak to in Canada and the US complains about poor sleep," says Leela McKinnon from the University of Toronto Mississauga. "But the data doesn't support that." It is commonly believed that the rise of devices like smartphones has resulted in reduced sleep — often referred to as a sleep-loss epidemic. Yet, many studies reporting a decline in sleep duration rely on self-reported data, which is an unreliable measure.

    Research using more reliable methods, such as activity monitors or brainwave tracking, has not indicated a decrease in sleep over recent decades. For instance, a 2023 review of 168 studies found no significant drop in sleep duration over the past 50 years. However, these studies primarily focused on industrialized nations, leaving the question of whether sleep patterns were different before industrialization unanswered. The availability of wrist-based activity monitors made it easier to study sleep in non-industrial societies. Such studies have revealed short sleep durations. For instance, among hunter-gatherers, the San peoples in southern Africa sleep for 6.7 hours a night on average.

    McKinnon and her colleague David Samson, also from the University of Toronto Mississauga, have participated in several relevant studies. They compared sleep habits in industrialized nations — like the US and Australia — with those in smaller, non-industrial communities, including local groups in the Amazon, Madagascar, and Tanna Island in the Pacific. Their analysis, the most comprehensive to date, involved direct measurements of sleep in 866 participants aged 18 and older with no serious health issues. They discovered that individuals in non-industrial societies averaged 6.4 hours of sleep, while those in industrial societies averaged 7.1 hours. Additionally, people in non-industrial societies were asleep for 74% of their time in bed, compared to 88% in industrialized areas, a concept known as sleep efficiency.

    Samson believes that people in industrialized societies sleep longer and better because their environment is more suitable for sleep. "We see that we've made some real gains in the safety and security of our sleep sites," he says, "We no longer need to worry about rival groups or predators at night."

    (1)、What does Leela McKinnon think of sleep complaints?
    A、They are overstated by people. B、They are supported by data. C、They are unique to Canada. D、They are caused by smartphones.
    (2)、How did the researchers conduct their research on people's sleep habits?
    A、By collecting sleep data of different age groups. B、By interviewing participants about their sleep routines. C、By analyzing health problems of sleep-deficient people. D、By comparing sleep conditions of different societies.
    (3)、Why do people in industrial societies sleep better?
    A、They sleep less but feel better. B、Their sleep technology is advanced. C、They are more used to short sleep. D、Their sleep environments are safer.
    (4)、What is the passage mainly about?
    A、Research challenges beliefs about sleep. B、Technology greatly reduces sleep time. C、Industrialization worsens sleep quality. D、Non-industrial societies sleep better.
  • 20、Microscopic pieces of plastic are everywhere. Now, they've been found in bottled water in concentrations 10 to 100 times more than previously estimated. Researchers found roughly 240,000 detectable plastic particles in a typical liter of bottled water.

    About 10% of the detected plastic particles were micro-plastics, and the other 90% were nanoplastic. Micro-plastics are between 5 millimeters and 1 micrometer; nanoplastic are particles less than 1 micrometer in size. For context, a human hair is about 70 micrometers thick. Micro-plastics have already been found in people's lungs and blood.

    Nanoplastic could be even more dangerous than micro-plastics because when inside the human body, "the smaller it goes, the easier for it to be misidentified as the natural component of the cell," says Wei Min, a professor of chemistry at Columbia University.

    The International Bottled Water Association (IBWA) said in a statement that it has had "very limited notice and time" to review the study. But the group said the new detection method "needs to be fully reviewed by the scientific community and more research needs to be done to develop standardized methods for measuring and quantifying nanoplastic in our environment." The association said there is "no scientific agreement on the potential health impacts of nano-and micro-plastic particles."

    The particles they could identify accounted for only 10% of total particles they found — the rest could be minerals, other types of plastics, or something else, says Beizhan Yan, a research professor and co-author on the study. They hope the research will lead to a better understanding of how much plastic humans are regularly putting into their bodies and its effects.

    Yan says they plan future research employing the same technology to look at plastic particles in tap water, in the air, in food and in human tissues. "This is basically just to open a new window for us to see what was this invisible world before."

    (1)、What is the author's purpose in mentioning human hair in paragraph 2?
    A、To show the harm of plastic particles. B、To stress the source of plastic particles. C、To illustrate the size of plastic particles. D、To prove plastic particles are everywhere.
    (2)、Why is it possible that nanoplastic are more dangerous than micro-plastics?
    A、They are more difficult to remove. B、They are more poisonous to humans. C、They are more likely to pass as harmless. D、They are more changeable than micro-plastics.
    (3)、What is IBWA's attitude to the study?
    A、Skeptical. B、Indifferent. C、Supportive. D、Neutral.
    (4)、What is the last paragraph mainly about?
    A、Effects of plastic particles. B、Further direction of the research. C、Significance of early plan for technology. D、Potential discovery of the invisible world.
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