1 . Plastic is everywhere, from the Arctic ice to vital organs in the human body. In fact, previous estimates suggest that the average person swallows a credit card-worth of microscopic plastic particles(颗粒) every week. But new research shows that this could actually be an understatement.

Microplastics are plastics smaller than 5 millimeters, found in industrial waste, beauty products, and formed during the degradation of larger plastic pieces. Over time, they break down into even smaller nanoplastics. These tiny particles can pass through our intestines and lungs into our bloodstreams, reaching vital organs like the heart and brain.

While the idea of eating plastic is unsettling in itself, the major concern here is that these plastic particles contain chemicals that can interrupt our body’s natural release of hormones, potentially increasing our risk of reproductive disorders and certain cancers. They can also carry toxins(毒素) on their surface like heavy metals.

In the past, researchers have shown bottled water can contain tens of thousands of identifiable plastic fragments in a single container. However, until recently, only the larger microplastics were detectable with available measuring tools, leaving the area of nanoplastics largely a mystery.

Using Raman microscopy (显微镜学), capable of detecting particles down to the size of a flu virus, the team measured an average of 240, 000 particles of plastic per liter of bottled water, 90 percent of which were nanoplastics, a revelation 10 to 100 times larger than previous estimates.

These plastics likely originate from the bottle material, filters used to “purify” the water, and the source water itself. “It is not totally unexpected to find so much of this stuff, ” the study’s lead author, Columbia graduate student Naixin Qian, said in a statement. His team hopes to expand their research into tap water and other water sources to better inform our exposure to these potentially dangerous particles. “The idea is that the smaller things get, the more of them I reveal, ” he added.

1. What is the primary focus of the new research?

A．The presence of plastic particles.	B．The use of plastic in everyday products.
C．The detection methods for microplastics.	D．The potential risks of nanoplastics to human.

2. What is the advantage of Raman microscopy?

A．Finding the source of plastic particles.	B．Helping to cure the deadly flu virus.
C．Detecting the smaller plastic particles.	D．Improving the quality of bottled water.

3. Why will the team expand their research into tap water?

A．To focus on areas with higher plastic pollution.

B．To be aware of the dangerous particles in daily life.

C．To further measure the types of particles in tap water.

D．To detect the smaller plastic particles in industrial areas.

4. What is Qian’s attitude towards his research?

A．Skeptical.

B．Objective.

C．Conservative.

D．Positive.

2 . What Makes a Nobel Laureate?

Are there any predictors that point to who will be selected as Nobel laureates?

Is brilliance in childhood a predictor? When the 2006 chemistry laureate, Roger Kornberg, was asked what he wanted for Christmas, he said, “A week in the lab.”     1    . Mario Capecchi (medicine, 2007) was an abandoned child on the streets of wartime Italy.

    2    . Five of Enrico Fermi’s (physics, 1938) postdoctoral students went on to win the Nobel Prize. Otto Warburg (medicine, 1931) advised an American doctoral student, “If you wish to become a scientist, you must ask a successful scientist to accept you in his laboratory.”

Experts often recommend that people specialize in one field of work or research to maximize their chances of success.     3     If you look at the careers of Nobel Prize winners, you’ll find that they are unusually likely to be “creative polymaths.” That is, they purposely integrate formal and informal expertise from widely varied disciplines to yield new and useful ideas and practices.

There remains one quality that is essential. It is what Leon Lederman (physics, 1988) called “compulsive dedication.”     4    . Take Marie Curie (physics, 1903; chemistry, 1911) and her husband Pierre (physics, 1903). The Curies were assigned a shed with a leaking roof and a dirt floor, where they worked for years, freezing in winter and sweltering in summer. “And yet,” Marie Curie wrote in her biography of her husband, “it was in this miserable old shed that the best and happiest years of our life were spent, entirely dedicated to work.”

A．What distinguishes Nobel laureates is passion for their work, work that engages their hearts as well as their heads.

B．But early privilege is not essential.

C．The typical Nobel laureate in science is a male born into a middle-class family.

D．In many Nobel laureates’ autobiographies, they pay tribute to an outstanding mentor.

E．In fact, Nobel laureates are mostly down-to-earth and discreet.

F．Yet recently published researches indicate that successful innovators take a broader path.

3 . Our culture has caused most Americans to assume not only that our language is universal, but that the gestures we use are understood by everyone. We do not realize that waving good-bye is the way to ask a person from the Philippines to one’s side, or that in Italy and some Latin-American countries, curling the finger to oneself is a sign of farewell.

Those private citizens who sent packages to our troops occupying Germany after World War II and marked them GIFT to escape duty payments did not bother to find out that “Gift” means poison in German. Moreover, we like to think of ourselves as friendly, yet we prefer to be at least 3 feet or an arm’s length away from others. Latins and Middle Easterners like to come closer and touch, which makes Americans uncomfortable.

Our linguistic and cultural blindness and the informality with which we take notice of the developed tastes, gestures, customs and languages of other countries, are losing us friends, business and respect in the world.

Even here in the United States, we make few compromises to the needs of foreign visitors. There are no information signs in four languages on our public buildings or monuments; we do not have multilingual guided tours. Very few restaurant menus have translations, and multilingual waiters, bank clerks and policemen are rare. Our transportation systems have maps in English only and often we ourselves have difficulty understanding them.

When we go abroad, we tend to cluster in hotels and restaurants where English is spoken. The attitudes and information we pick up are conditioned by those natives—usually the richer—who speak English. Our business dealings, as well as the nation’s diplomacy, are conducted through interpreters.

For many years, America and Americans could get by with cultural blindness and linguistic ignorance. After all, America was the most powerful country of the free world, the distributor of needed funds and goods.

But all that is past. American dollars no longer buy all good things, and we are slowly beginning to realize that our proper role in the world is changing. A l979 Harris poll reported that 55 percent of Americans want this country to play a more significant role in world affairs; we want to have a hand in the important decisions of the next century, even though it may not always be the upper hand.

1. It can be inferred that Americans being approached too closely by Middle Easterners would most probably________.

A．stand still

B．scream out

C．step forward

D．draw back

2. The author gives many examples to criticize Americans for their ________.

A．cultural self-centeredness	B．casual manners
C．indifference towards foreign visitors	D．blindness to native culture

3. In countries other than their own, most Americans ________.

A．are isolated by the local people

B．are not well informed due to the language barrier

C．tend to get along well with the natives

D．need interpreters in hotels and restaurants

4. The author’s intention in writing this article is to make Americans realize that ________.

A．it is dangerous to ignore their foreign friends

B．it is important to maintain their leading role in world affairs

C．it is necessary to use several languages in public places

D．it is time to get acquainted with other cultures

4 . Dear boss — You have always tried to attract young and youngish consumers, and our consultants have always come up with new ways to label them. I don’t need to remind you that “millennials” and, increasingly, “Gen Z” are our most important markets. The trouble is that coming up with rules to define a swathe of humanity is more art than science. It is liable to apply stereotypes. Luckily you have me, and I’m here to tell you that much of what is written about marketing to today’s most prized consumers is a myth.

Social media has just changed the ways people discover brands from viewing television, newspapers and magazines to surfing Instagram and TikTok; it has weakened the power of marketing as a whole. Such is the ease with which digital natives can fact-check our tricky marketing claims that it is getting harder to build brand loyalty. Online, communication is cheap and prices are readily Googled.

There is a similar temptation to think that physical shops no longer matter. Young consumers love their Amazon deliveries. But what works best is the seamless combination of the digital and physical worlds. Remember those online-only influencer-backed beauty brands like Glossier, which took the world by storm during the pandemic? It turns out that they struggle to get repeat business and have had to pair up with physical retailers. If we want to succeed, we need to offer the best of both physical and virtual worlds.

Gen Z will consider a brand’s sustainability and social impact, but considering something isn’t surrendering to it. They are never brand-slaved. It is chiefly youngsters who buy cheap “fast-fashion” outfits to wear once and then send to landfill. Also, youngsters care less for consumer boycotts than its virtue-signaling parents, thus open to various brands. No wonder, most brands originate from youngsters with duel identities of producers and consumers.

What determines the shopping mode of a generation is their mindset. In Gen Z, lies are easily exposed online, where everyone loves a takedown and hates hypocrisy. We are people just as our young customers are and people will always buy sincerity.

1. What is the article primarily warning readers against in marketing?

A．The excessive use of digital advertising and ignoring traditional media.

B．The use of influencers and social media platforms for product promotion.

C．Focusing solely on Gen Z without considering other demographic groups.

D．Relying on outdated perceptions of young consumer behaviors.

2. Why is it challenging to build brand loyalty among younger consumers in the digital age?

A．Young consumers are less interested in brand loyalty.

B．Digital natives can check out marketing claims.

C．Young consumers prefer shopping in physical stores.

D．Social media platforms are misguiding in brand establishment.

3. What is suggested about the importance of physical stores in modern retailing?

A．Physical stores are becoming obsolete due to the rise of e-commerce.

B．Young consumers only prefer online shopping and home deliveries.

C．A combination of digital and physical retail experiences is most effective.

D．Physical stores should be completely replaced by digital marketing strategies.

4. What’s the attitude of young consumers towards brands?

A．They commit to social justice and boycott unethical brands.

B．They consider a brand’s sustainability but are not controlled by it.

C．They are indifferent to a brand’s quality and social influence.

D．They only support brands that are created by their peers.

5 . More Than a Feeling

Charles Darwin formulated the most successful theory in the history of biology: the theory of evolution. He was also responsible for another grand theory: the theory of emotion, which dominated his field for more than a century. Its core principle was that the mind consists of two competing forces: the rational and the emotional.     1    

We now know that, on the contrary, emotions enhance our process of reasoning and aid our decision-making. In fact, we can’t make decisions, or even think, without being influenced by our emotions.

    2     Perhaps the most important discovery regarding the role of emotion is that even when you believe you are exercising cold, logical reason, you are not. People are not usually aware of this, but the very framework (框架) of their thought process is highly influenced by what they are feeling at the time - sometimes subtly (细微地).

Consider anger, for example. Backed by the threat of attack, anger creates incentives (动机) for others to comfort the angry individual. Your mental calculations increase the importance you place on your own welfare and goals at the expense of others’. Coaches tap into anger as a motivational tool because the focus on the self encourages athletes to push themselves to achieve their goals. Anger also causes you to perceive less risk.     3    

The new view of emotion may not correspond to the way Darwin saw it, but it does support one of the basic conclusions of his theory of evolution. Humans are not as different from non-human animals as people believed. What can we learn from this? The first and most crucial step is self- awareness.     4     By studying our own emotions, we can read others’ better and communicate more effectively. Once we are in touch with our true feelings, we can take steps to manage them whenever it benefits.

A．Emotions play a critical role in shaping our thoughts and decisions, subtly influencing the framework of our reasoning even when we believe we are thinking rationally.

B．He believed that emotions played a constructive role in the lives of non-human animals, while the usefulness of emotions was largely replaced by the evolution of reason in humans.

C．That can produce better judgments in situations where risk aversion (厌恶) is inappropriate, as when you are analyzing stocks (股票) or playing poker.

D．Anger, while often perceived negatively, can sometimes fuel our motivation and reduce our perception of risk, enabling more decisive actions in certain situations.

E．Studies show that those with high levels of emotional intelligence fare better in their personal and professional lives.

F．If emotions aid rational reasoning, how does that work.

6 .

________/10                                                                                Hardship                                                       Judy          May, 2020 Early on I thought this family was a bunch of complainers. But the focus of this reality show is how sweet family life was in the tough wartime era, which really touched me. But as I watched I noted that the 1940s mid-class family life was not that unbearable. Even though they didn’t have labor-saving facilities, they still had coal fire. Maybe, it’s only due to modern people’s sense of privilege that they promptly forget what immense, bodily labor was involved in the previous chore it replaced. So, the experiment was not that “real”?! Therefore, I recommend, but not highly, this show to you.

_________/10                                                                   Must See TV-Really!                                   Lily          June, 2021 For anyone interested in “Reality TV” with an emphasis on “Real”, checkout 1940’s House as soon as you can. The Hymer family from northern England spends 9 weeks living the life of a suburban 1940’s house during the infamous London blitz. Everything they use, wear, purchase, read comes from that time period - including ration books, blackout curtains, Victory gardens, and a self-built bomb shelter. What makes this   “House”   installment the best in   a long line   (see   “Frontier House”, “Colonial House”, “1900 House”) is the family’s willingness to immerse themselves in the project wholeheartedly. You as the viewer really begin to sympathize with the Hymer family’s struggles to live a 1940’s life with a 21st century mindset. I think most people will come away liking the attitude and spirit of the mother the best - she truly embodies the British spirit that was so essential and prevalent during England’s darkest hour. This is 3 hours of “history” that no one will want to end. Children would also enjoy this as there are 2 young boys (ages 10 and 7) who participate in the program wholeheartedly.

________/10                                                                                  A bit   sinister                                               David            February, 2023 Although it’s as well made as the other PBS reality shows, this one was disturbing. Many of the hardships imposed on the Hymers are by design, not circumstance. A committee of seven or eight experts privately judges them in a star chamber and decides how strict rationing will be and how much they will be fined for infractions. Watching the children go hungry while the experts debated how much to cut the food budget bothered me. The Hymers live more like lab rats than adventurers. It’s also hard to get worked up about how much wartime Brits suffered from rationing since it was nothing compared to the hardships undergone by eastern Europeans, Asians and even their own soldiers. The show was simply too narrow in scope and sinister.

1. The ratings of these three users have been hidden. Which of the following three ratings do you think are most likely to be real?

A．Judy: 6/10; Lily:3/10; David:1/10	B．Judy: 8/10; Lily:10/10; David:8/10
C．Judy: 6/10; Lily:10/10; David:1/10	D．Judy: 8/10; Lily:1/10; David:8/10

2. Which of the following is true according to the passage?

A．From Judy’s perspective, the Hymers family has always been a bunch of complainers.

B．The “House” series consist of “Frontier House”,” Colonial House” and “1900 House”.

C．The mother personifies the essential British spirit so most people will like her.

D．The PBS reality shows are quite disturbing, especially “The 1940s House”.

3. The passage can probably be found ________.

A．on a website providing reviews about reality shows

B．on the advertisement of “The 1940s House”

C．on a textbook about how to make excellent movies

D．in a fantasy novel about travelling back to the 1940s

7 . In the heart of the war-torn city, where buildings stood like wounded soldiers, Emma waited inline for her weekly ration. The line moved slowly, a somber procession of gaunt (瘦削憔悴的) faces and threadbare coats. When her turn came, the ration officer handed her the allotted food with a detached efficiency. “Two loaves, half a pound of sugar, and a tin of powdered milk,” he recited. The portions seemed to shrink each week, mirroring the dwindling hope in people’s hearts.

Clutching her meager supplies, Emma hurried through the bombed-out streets, dodging craters and debris. The city, once vibrant and bustling, now lay in a hushed surrender to scarcity and fear. At home, her family’s small garden offered a sharp contrast to the desolation around. Here, amidst the rows of struggling vegetables, her father toiled.

“Dad, let me help,” Emma offered, taking the shovel from his weary hands. Together, they dug into the earth, creating a hidden cache for extra food. It was a secret they guarded fiercely, knowing that in times of shortage, even neighbors could turn against each other out of desperation.

As they worked, Emma’s mind wandered to the days before the war, when food was abundant and their garden was a source of joy, not just survival. She remembered her mother’s cooking, the aromas that filled their kitchen, the laughter that accompanied their meals. Now, each bite of their bland rations was a reminder of what had been lost.

In the evenings, the family gathered around a small table, sharing their rationed food. Conversation flowed, weaving tales of better times, igniting sparks of hope. Emma’s younger brother, Tom, would often ask, “When will we have chocolate again?” It was a question loaded with longing, not just for the sweetness of chocolate but for the return of normalcy.

Despite the hardship, they found reasons to smile. Emma’s father would recount stories from his youth, tales of adventure that seemed like fairy tales in their grim surroundings. Her mother would hum old tunes, filling their home with a semblance of warmth and normalcy.

As winter deepened, the rations grew scarcer, and the hidden cache in the garden became their lifeline. Each day, Emma and her father would check the hole, ensuring their precious supplies were safe. The hole, a mere cavity in the ground, symbolized their resilience, a refusal to succumb to despair.

1. How did the amount of weekly rations appear to change each week?

A．Significantly increased	B．Dramatically decreased
C．Remained the same	D．Decreased each week

2. What does the term “hidden cache” in the third paragraph refer to in the article?

A．A treasure map	B．A buried capsule
C．A secret food storage spot	D．A mysterious box

3. How does the family’s gathering around the table for meals illustrate the impact of war on their lives?

A．Abundant food showshow the war has unexpectedly brought prosperity to their family.

B．The family’s conversations about a war-free future reflect their enduring hope.

C．Meals at the table are silent and rushed, highlighting their fear and anxiety.

D．The table becomes a place of conflict where family members argue over limited food.

4. Tom’s longing for chocolate is symbolic in the story. What does this longing represent?

A．It’s a simple craving for a treat, unrelated to the broader themes of the story.

B．The desire for chocolate symbolizes a yearning for the comforts of life before the war.

C．His wish for chocolate indicates his dislike for the food rationing and nothing more.

D．It is a secret code used by the family to communicate about their hidden food.

8 . Frozen in time, a 125-million-year-old mammal attacking a dinosaur. A 39-million-year-old whale, the heaviest animal that ever lived. The oldest known jellyfish, from 505 million years ago. Paleontology (古生物学) produces newsworthy discoveries.

Fossils (化石), moreover, provide direct evidence for the long history of life, allowing paleontologists to test hypotheses (假设) about evolution with data only they provide. They allow investigation of present and past life on Earth. Flows of biological diversity, appearances of new life forms and the extinctions of long existing ones, would go undiscovered without these efforts. But the headlines over exciting new fossils greatly underestimate the true importance of paleontology. Its real significance lies in how such discoveries brighten the grand history of life on Earth. From its beginnings, more than three billion years ago, to the present day, fossils record how life adapted or disappeared in the face of major environmental challenges.

Paleontologists provide us with a unique vantage on modern climate change. They play an essential role in interpreting ancient environments, in reconstructing ancient oceans, continents and climates. Fossils provide key limitation on the climate models that are essential for predicting future climate change. And the fossil record gives important insights into how life will respond to predicted future climate conditions, because these have occurred before in Earth’s history.

In addition, paleontology has provided a fundamental contribution to human thought: the reality of species extinction and thus of a world that has dramatically changed over time. In documenting the history of life, paleontologists recognized that many extinction episodes could occur suddenly, such as the event 66 million years ago that ended the dinosaurs. The search for the causes of past mass extinctions started pioneering studies from across the scientific spectrum (科学界), focusing on potential future threats to humanity.

Not only do paleontologists know what happens to life when things go bad, they also know how long it takes for ecosystems and biodiversity to recover from these disasters, which can take far longer than modern humans have existed.

Paleontologists thus provide a unique perspective on the nature and future long-term ecological impact of the current human-produced biodiversity crisis, the so-called Sixth Extinction, and therefore the importance of protecting modern biodiversity. The very concept of a Sixth Extinction would not exist without paleontologists documenting the first five.

Paleontologists know that understanding life’s past is critical to anticipating and adapting to life’s and humanity’s future. Paleontology is important because it brings its unique and critical perspective to current challenges in climate change, biodiversity loss and the environment. Paleontologists can predict the future because they know the past.

1. The first two paragraphs are written to _______.

A．describe an event	B．raise a question
C．present an opinion	D．make a comparison

2. What does the underlined word “vantage” in Paragraph 3 mean?

A．A positive effect.	B．A valuable suggestion.
C．A quick decision.	D．A comprehensive view.

3. Which of the following would the author agree with?

A．Ecological recovery takes shorter than imagined.

B．Past lessons can help to predict the future threats.

C．Paleontologists can handle the biodiversity crisis.

D．Fossil studies focus on the causes of mass extinctions.

4. What’s the best title for the passage?

A．Paleontology: A Pioneering Study

B．Paleontology: A History Recorder

C．Paleontology Tells More About Nature Than Humans

D．Paleontology Is Far More Than New Fossil Discoveries

9 . Caves in the Sahara Desert

In today’s lecture we will center on the people who lived five thousand years ago in the Sahara Desert. Most of these desert people moved across the countryside throughout the year. But if the journey was long, extra food and tools were sometimes stored in caves. One of these caves is now an exciting historic site. Even though the cave is very large, it was certainly too dark and dusty for people to live in, but it was a great place to hide things. And huge amounts of food supplies and daily tools have been found there. The food includes dried fish and nuts. Some decorations were also found in the caves. There are necklaces, earrings, and so on. Most of them are made of bone. From the above talk, we can see that there are really a lot of differences between ancient people’s lives and our lives today.

The Houston Museum of Natural Science

Welcomes all school groups to explore technology and the natural environment on a field trip designed to meet the learning needs of the students.

You can visit the museum from Monday to Saturday from 9:00 a.m. to 5:00 p.m. Groups must have at least one teacher for every ten students. Students must be supervised at all times, and teachers are responsible for their behavior inside the museum. Unsafe behavior is not permitted and will result in the entire group being asked to leave.

No backpacks, headphones, candy, gum, or lunches are allowed inside the museum. Lunches may be eaten outside in the park. We regret that the museum is unable to provide a place to have lunch indoors. In the event of bad weather, please plan to eat in your vehicle.

1. What did the desert people do with their possessions on long journeys?

A．They carried all their possessions on their backs.

B．They stored some of their possessions in caves.

C．They threw unnecessary possessions away.

D．They stored the possessions in the desert.

2. What’ s the direct result of unsafe behavior?

A．The teacher taking responsibility.	B．Those behaving unsafely having to leave.
C．The whole group having to leave.	D．Having to pay money for unsafe behavior.

3. Where can visitors eat their lunches in bad weather?

A．In a park.

B．In a lunchroom.

C．In their vehicles.

D．In a bathroom.

10 . During the summer holidays, you might be eager to get out and about. What would you like to do? There are plenty of helpful websites and apps with good ideas.

The Wildlife Trusts charity has a map of walks all over the UK. You can zoom in to find the ones nearest where you live, read about them and plan a visit. Another good website for finding places to walk is AllTrails, where you can search for the name of a nearby city or park to explore with your family or friends.

One fun way to explore your neighborhood is through wildlife. The Week Junior Science+Nature’s summer scavenger hunt (寻宝游戏) asks you to track down 10 natural objects, including clouds and creepy-crawlies. There’s also a photo competition for young nature lovers.

Summer is the best time for butterfly-spotting, and iRecord Butterflies is a free app that helps you to identify the ones you see. It also uses the data to protect these beautiful creatures.

Another cool app worth checking is Seek by iNaturalist, which includes information about all sorts of wildlife, including bugs, fish and plants. And you can take part in monthly challenges. It’s been designed for families to use.

Finally, there’s Parkrun, where adults and young people get together to run in thousands of local parks. The Junior Parkrun website has a map showing you when and where these events take place, to help find your nearest one.

1. Which of the following attracts those who love taking photos of nature?

A．AllTrails.	B．The Wildlife Trusts.
C．The iRecord Butterflies.	D．The Week Junior Science+Nature.

2. How many apps are mentioned in this text?

A．One.

B．Two.

C．Three.

D．Four.

3. What is the advantage of the Junior Parkrun?

A．Identifying the most special local parks.

B．Allowing people of all ages to get together.

C．Having much experience of organizing events.

D．Offering a map to show different times and places of the events.