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 . The Music Educator Award, this year, went to Annie Ray, an orchestra(管弦乐队)director at Annandale High School.She was recognized for her efforts to make music accessible to all students, particularly those with disabilities.Ray got to attend the awards ceremony in Los Angeles and bring home a $10,000 prize.

Ray created the Crescendo Orchestra for students with severe intellectual and developmental disabilities, as well as a parent orchestra that teaches nearly 200 caregivers a year to play the same instrument as their child.Ray also works with a local charity to give damaged instruments a second life in her classroom.

The orchestra is about much more than just making music.The most important is to give students a chance to develop their cooperation skills, make mistakes and learn the art of refining something.Ray pushes her students to be brave, go outside their comfort zone and realize they have to learn how to make bad sounds before learning how to make good sounds.And they teach her a lot in return.” They changed my educational philosophy.I understand what it truly means to meet a student where they’re at and apply that elsewhere,” she said.

The warm reception on the ceremony was meaningful.Actually, not many people understand what exactly music educators do or how much their work matters.While her administration is supportive, that lack of understanding is a problem facing the profession in general.Another is resources.She says her school “desperately” needs new instruments.She will use some of her prize money to buy more.

Ray also plans to put some of the money towards an ongoing scholarship for students who want to pursue music when they graduate.She knows of several, those particularly interested in music, and aims to offer financial support needed to realize their musical dreams” It is hard but truly satisfying,” Ray said.“And there’s nothing else like it for them.”

1. What can we learn about Ray from the first two paragraphs?

A．She hosted the award ceremony.	B．She brought music to more people.
C．She gave away instruments to the poor.	D．She founded a local charity for children.

2. What do students benefit most from the orchestra?

A．They acquire in-depth musical knowledge.	B．They make friends with the like-minded.
C．They gain personal growth from playing music.	D．They improve their connections with educators.

3. What is paragraph 4 of the text mainly about?

A．The reception on the ceremony.	B．Importance of music education.
C．Challenges for music educators.	D．Plans to obtain resources.

4. What does Ray find satisfying according to the last paragraph?

A．Winning a scholarship.	B．Developing interest in music.
C．Making musical achievements.	D．Transforming dreams into reality.

4 . “Is this all? Where arc the rest of the presents? ”asked my twelve-year-old daughter, Allison, and Blake, one year older than his sister.

       Money was ________. There was a time when my husband was alive and my children could receive almost everything on their wish lists, but that was not the ________ now.
       “Next year we will celebrate Christmas in a whole new way!” I announced, ________ to teach them a lesson.
       ________ went by quickly. My kids thought I would forget all about their actions on last Christmas. In fact, I ________ agencies and found a family that desperately needed help. There were four children aged three to eight. The father had lost his job and remained ________ since.
       As Christmas ________closer, there were still no presents under the tree. Blake and Allison were ________, and then told the gifts would be given to who truly needed them. The kids weren’t satisfied with the situation, but still prepared things for the family to ________ the winter.
       On Christmas Eve, we reached the house of the family and were welcomed with smiles and homemade bread. We accepted the ________, asking for the recipe, which seemingly delighted the mother.
       The parents let their children put the ________ under a small Christmas tree, where they shook boxes and guessed what was inside. ________, Allison and Blake began joining the children and laughing together. Blake was even rolling a ball with the youngest kid. We all enjoyed the day.
       When saying goodbye to the family, I could tell our visit had ________ Blake and Allison, whose eyes were full of tears that they didn’t let fall.
       The way home was quiet. On arriving, Allison and Blake turned to me, “Thanks, Mom.”
       ________ accomplished. The gifts ________ in my closet could now go under the tree, I thought.1.

A．tight

B．loose

C．enough

D．available

2.

A．case

B．view

C．reason

D．problem

3.

A．moved

B．delighted

C．embarrassed

D．determined

4.

A．Months

B．Years

C．Ages

D．Decades

5.

A．referred

B．arranged

C．promoted

D．contacted

6.

A．addicted

B．separated

C．forgotten

D．unemployed

7.

A．set

B．drew

C．mounted

D．scheduled

8.

A．amazed

B．excited

C．confused

D．frightened

9.

A．last

B．escape

C．survive

D．congratulate

10.

A．treat

B．effort

C．request

D．accommodation

11.

A．toys

B．lists

C．snacks

D．packages

12.

A．Strangely

B．Gradually

C．Generally

D．Extremely

13.

A．struck

B．unified

C．shocked

D．identified

14.

A．Event

B．Point

C．Mission

D．Challenge

15.

A．lost

B．buried

C．trapped

D．hidden

5 . More than 170,000 people in California are unhoused. Even as the state has poured resources into fighting against the problem, the number of people without homes has ticked upward in recent years. On the surface, the state has one key advantage for people without a reliable roof over their heads: relatively consistent and livable weather. So one of my first thoughts when I heard news of a horricane attacking Los Angeles was just “What will happen to the city’s homeless population?”

City agencies quickly took action. As it became clear that the Los Angeles region could experience an extreme downpour and subsequent flooding, outreach teams fanned out across the river bank and dam areas across the city that have become home to a significant unhoused population, offering support to move them into shelters and motels (汽车旅馆).

Despite that, it’s obvious that the effects of climate change will hit the most vulnerable (脆弱的) hardest. We see this globally as extreme weather events hit countries that have contributed the least to the problem.

The most notable connection between climate change and the US housing crisis is the threat extreme weather poses to unhoused people. More unhoused people are affected as climate change drives increasingly unpredictable weather. People without homes know how to respond to expected seasonal events. But events like a near-hurricane in Los Angeles or a wildfire in ‘Maui can catch populations with limited access to information off guard.

Another link worth considering is the way in which climate change creates more homelessness and further stresses on housing systems. Hurricane Katrina, for example, displaced 800, 000 people. Four years later, 12,000 people remained without shelter.

Housing has been — and will continue to be — a key issue in Maui too as it recovers from the wildfire that killed more than 100 people. Maui has already had a housing crisis, the result of a high cost of living driven in large part by the tourism industry. And, now, many more are left looking for places to stay. Ashley Kelly, the chief operating officer at Hawaii’s Family Life Center, said: “Finding housing for any new clients is just not possible right now.”

1. What contributes to the increase of the unhoused population in California?

A．Its mild weather.

B．Its inclusive local culture.

C．Its limited basic facilities.

D．Its relaxed state policies.

2. What did outreach teams do in response to the hurricane in Los Angeles?

A．They built dams to prevent flooding.

B．They moved homeless people to safe places.

C．They sought low-cost housing from city agencies.

D．They surrounded the river bank to keep people away.

3. Which word can best describe Maui’s housing circumstances now according to Ashley Kelly?

A．Mysterious.

B．Exceptional.

C．Changeable.

D．Difficult.

4. What is the text mainly about?

A．Ways of Americans relocating disaster-affected populations.

B．The significance of timely weather updates for the homeless.

C．The link between climate change and the housing crisis in the US.

D．Approaches of homeless Americans to dealing with natural disasters.

6 . Bill Sumiel was having a tough Friday. It was October 2020, and the 71-year-old, who was dealing with kidney (肾) failure, found himself at a medical center 30 miles from home.

Sumiel was no stranger to the ________ of kidney disease. He’d suffered from diabetes (糖尿病) more than 20 years before, which ________ his kidney problems. He was on the transplant ________, but no matches had yet appeared. So he continued with his treatments and took a taxi to and from his ________.

Timothy Letts, 31, was driving north to visit a friend when his phone rang with the ________ for Sumiel’s ride home. The trip was out of Letts’s way. ________, he took the order.

When Sumiel got into the car, the pair got to ________. Sumiel ________ that he was searching for a kidney donor. Letts joked that he’d be a good donor (捐赠者), ________ that he didn’t drink or smoke. Sumiel ________, though he didn’t think much of it as they kept driving. Letts, however, couldn’t stop thinking about it. About a quarter-mile away from Sumiel’s house, Letts said, “I’d like to see if I could be a ________ to give you a kidney.”

Sumiel was touched by Letts’s ________, though he wondered if it had just been a(n) ________ moment. But Letts was ________ to his word. He got in touch with Sumiel just a few hours later, and by the next week, Letts had ________ the kidney transplant program. After a long screening process, the results were in: Letts was an ideal donor, and he and Sumiel were a perfect match.

1.

A．origins

B．struggles

C．warnings

D．symbols

2.

A．adapted to

B．arose from

C．led to

D．took over

3.

A．list

B．category

C．class

D．group

4.

A．department

B．company

C．arrangement

D．appointment

5.

A．application

B．question

C．request

D．intention

6.

A．Still

B．Therefore

C．Otherwise

D．Meanwhile

7.

A．debating

B．remarking

C．arguing

D．chatting

8.

A．instructed

B．revealed

C．wondered

D．announced

9.

A．supposed

B．assumed

C．given

D．convinced

10.

A．agreed

B．claimed

C．doubted

D．suggested

11.

A．sponsor

B．match

C．surgeon

D．model

12.

A．demand

B．advice

C．offer

D．mission

13.

A．magical

B．joyful

C．anxious

D．emotional

14.

A．equal

B．kind

C．true

D．sensitive

15.

A．contacted

B．informed

C．persuaded

D．urged

8 . For lots of kids, toddlerhood (幼儿期) is an important time for friendship. Studies show that the earlier kids learn to form positive relationships, the better they are at relating to others as teenagers and adults. Playing together also helps these kids practice social behaviors, such as kindness, sharing, and cooperation.

Even so, how quickly your child develops into a social creature may also depend on his temperament(性格). Some toddler s are very social, but others are shy. In addition, the way that toddlers demonstrate that they like other children is markedly different from what adults think of as expressions of friendship. Research at Ohio State University in Columbus found that a toddler’s way of saying “I like you” during play is likely to come in the form of copying a friend’s behavior.

This seemingly unusual way of demonstrating fondness can result in unpleasant behavior. Regardless of how much they like a playmate, they may still grab his toys, refuse to share, and get bossy. But experts say that this is a normal and necessary part of friendship for kids this age. Through play experiences, toddlers learn social rules. That’s why it’s so important to take an active role in your toddler’s social encounters by setting limits and offering frequent reminders of what they are. When you establish these guidelines, explain the reasons behind them.

Begin by helping your child learn sympathy (“Ben is crying. What’s making him so sad?”), then suggest how he could resolve the problem (“Maybe he would feel better if you let him play the ball.”). When your child shares or shows empathy(同理心) toward a friend, praise him (“Ben stopped crying! You made him feel better.”).

Another way to encourage healthy social interaction is by encouraging kids to use words- not fists-to express how they feel. It’s also important to be mindful of how your child’s personality affects playtime. Kids are easy to get angry when they’re sleepy or hungry, so schedule playtime when they’re refreshed.

1. What does it indicate when toddlers copy their playmates’ behavior?

A．They are interested in acting.	B．They are shy with the strangers.
C．They are fond of their playmates.	D．They are tired of playing games.

2. What does the author suggest parents do for their kids?

A．Design games for them.	B．Find them suitable playmates.
C．Play together with them.	D．Help them understand social rules.

3. What is the function of the quoted statements in paragraph 4?

A．Giving examples.	B．Explaining concepts.
C．Providing evidence.	D．Making comparisons.

4. Which of the following is the best title for the text?

A．How Children Adapt to Changes	B．How to Be a Role Model for Children
C．How Your Baby Learns to Love	D．How to Communicate with Your Kid

9 . In his 1936 work How to Win Friends and Influence People, Dale Carnegie wrote: “I have come to the conclusion that there is only one way to get the best of an argument — and that is to avoid it.” This distaste for arguments is common, but it depends on a mistaken view of arguments that causes problems for our personal and social lives — and in many ways misses the point of arguing in the first place.

Carnegie would be right if arguments were fights, which is how we often think of them. Like physical fights, verbal (言语的) fights can leave both sides bloodied. Even when you win, you end up no better off. You would be feeling almost as bad if arguments were even just competitions — like, say, tennis tournaments. Pairs of opponents hit the ball back and forth until one winner comes out from all who entered. Everybody else loses. This kind of thinking explains why so many people try to avoid arguments.

However, there are ways to win an argument every time. When you state your position, formulate (阐述) an argument for what you claim and honestly ask yourself whether your argument is any good. When you talk with someone who takes a stand, ask them to give you a reason for their view and spell out their argument fully. Assess its strength and weakness. Raise objections (异议) and listen carefully to their replies. This method will require effort, but practice will make you better at it.

These tools can help you win every argument — not in the unhelpful sense of beating your opponents but in the better sense of learning about what divides people, learning why they disagree with us and learning to talk and work together with them. If we readjust our view of arguments — from a verbal fight or tennis game to a reasoned exchange through which we all gain respect and understanding from each other — then we change the very nature of what it means to “win” an argument.

1. What is the author’s attitude toward Carnegie’s understanding of argument?

A．Critical.

B．Supportive.

C．Tolerant.

D．Uncertain.

2. Why do many people try to avoid arguments?

A．They lack debating skills.	B．They may feel bad even if they win.
C．They fear being ignored.	D．They are not confident in themselves.

3. What does the underlined phrase “spell out” in paragraph 3 probably mean?

A．Defend.

B．Explain.

C．Conclude.

D．Repeat.

4. What is the key to “winning” an argument according to the author?

A．Sense of logic.	B．Solid supporting evidence.
C．Proper manners.	D．Understanding from both sides.

10 . Parrots are prey animals, which means that other predators (捕食者) in the wild, such as hawks or snakes, are looking to make them into a meal. This one factor influences parrots’ behavior in your house more than any other.

Parrots are most easily hurt when feeding on the ground. Membership in a group plays an important function in ensuring their safety and improving their chances of survival from attacks by predators. The most common predators of parrots include hawks, snakes, cats, monkeys, and bats. Some predators make attacks only during the day while others hunt in the night.

As prey animals, parrots are constantly watching out for danger and they instinctively (本能地) react to risks. Their first choice is to take flight. However, if this is not possible, they will fight with their powerful beaks to defend themselves.

Because their biggest enemy is the hawk, parrots are especially reactive to quick movements from above and behind. For this reason, it is wise to avoid quick, sudden movements near your bird. This is a built-in reaction not subject to logic or reason. Simple and relatively harmless household objects can draw extreme fear responses from a bird. For example, a balloon may represent a hawk or a vacuum hose (吸尘器软管) may be the same as a snake in your bird’s mind.

As prey animals, parrots are often frightened by exposure to new household items or strangers. It is important to expose your bird to safe experiences and changes starting at a very young age to build flexibility and improve their adaptability. Variety in diet and toys, travel, and exposure to new people and places all help to make your bird more flexible and adaptable to change.

1. What is important for parrots to better survive from attacks in the wild?

A．Living in a group.	B．Growing beautiful feathers.
C．Feeding on the ground.	D．Avoiding coming out at night.

2. What is parrots’ first response to an immediate risk?

A．To attack back.	B．To get away.
C．To protect the young.	D．To play dead.

3. Why would a balloon frighten a parrot?

A．It may explode suddenly.	B．It may be in a strange shape.
C．It may have a strong color.	D．It may move around quickly.

4. What is the author’s purpose of writing the text?

A．To explain wild parrots’ behavior.	B．To give advice on raising a parrot.
C．To call for action to protect animals.	D．To introduce a study on bird ecology.