相关试卷

According to a report by China Youth Daily, there are two primary types of self-driving systems in use today: those that use cameras and those that use light detection and ranging (LiDAR，激光雷达). Each type faces its own set of challenges. For example, Tesla's system uses cameras and deep learning, without high-precision maps, which works well in clear weather but struggles in bad conditions like heavy rain or fog. Some companies like Xpeng Motors use LiDAR technology, but its high cost-around 7.000 yuan for each system makes it difficult to use widely.

Another challenge is cybersecurity. According to Xinhua, Hackers can control the vehicle through cloud networks causing accidents or demanding money. Keeping data safe and preventing attacks is important for making autonomous driving safe. Also, the systems of self-driving cars have problems when dealing with unexpected situations. For example, if a traffic light doesn't work, the car might not know how to respond because its algorithm (算法) is designed to follow the light's instructions, not manage technical failures. Similarly, if a traffic officer directs traffic with a flag, the car might not recognize this human action, as it has not been programmed to react to such signals. In another case, if a child suddenly runs into the road the car must react quickly, but its sensors might not always predict such actions in time. These challenges show that self-driving is not yet ready for every real-world situation.

Beyond these technical challenges, the infrastructure for autonomous driving is still in the early stages of exploration and pilot projects. Many cities lack a unified plan for their traffic infrastructure. Autonomous driving systems need real-time data exchange and strong computing resources, and building vehicle-road collaboration (协作) requires many parties to work together. However, many cities' infrastructures currently do not yet support high-frequency data transmission.

New research led by Cole has gotten a step closer. Through a large-scale genomics analysis, her team identified 481 genome regions that were directly linked to eating habits and food preferences. The findings, which have not yet been peer-reviewed (同行评议), were presented last month.

Built on a study in 2020, Cole and her colleagues used data from Biobank, which has a public database of the genetic and health information of 500,000 participants. By scanning genomes, the new analysis is was able to home in on 194 regions associated with eating habits and 287 linked to specific foods such as fruit, cheese, fish, and tea. Further understanding how genes impact our eating could show differences in nutritional needs and disease risks.

"One of the problems with many previous genomics studies is that they're very small. They don't have enough people to be able to identify genes in a credible manner. This study had a huge group of people, so that's really powerful," says Monica Dus, an associate professor at the University of Michigan. "The other thing that I thought was great is that they have so many different features that they're measuring concerning diet. They had fats, the body, social-economic backgrounds."

As the research advances, Dus says, "Instead of worrying about telling people what to eat, a more effective approach would be ensuring there aren't ‘food deserts' so people could get more food — things that have a broader impact."

One reason we should study intercultural communication is to enhance self-awareness. Our thinking process regarding culture is often "others-focused", meaning that the culture of the other person or group is what stands out in our view. However, the old saying "know thyself" is appropriate, as we become more aware of our own culture by better understanding other cultures and views.

Intercultural communication can allow us to step outside of our comfortable, usual frame of reference and see our culture through a different aspect. Additionally, as we become more self-aware, we may become more ethical communicators as we challenge our tendency to view our culture as superior to others.

As was noted earlier, differences matter, and studying intercultural communication can help us better negotiate in our changing world. Changing economies and technologies intersect with culture in meaningful ways. Technology has created a global village where vast distances are much shorter due to new technology that makes travel and communication more accessible and convenient. However, as the following "Getting Plugged In" box indicates, there is also a digital divide, which refers to the unequal access to technology and related skills that exist throughout much of the world. People in most fields will be more successful if they are prepared to work in a globalized world.

Obviously, the global market sets up the need for intercultural competence for employees who travel between locations of a multinational corporation. Perhaps less obvious may be the need for teachers to work with students who do not speak English as their first language and for police officers, lawyers, managers, and medical personnel to be able to work with people who have various cultural identities.

When choosing schools, many students and parents look at their rankings. Rankings are lists that try to show which US universities are "best". Famous magazines and websites create these lists every year.

However, a university with a high ranking isn't necessarily the right one for you. Think of it like choosing a restaurant: The most expensive restaurant in town might not serve the food you enjoy most!

How US universities are different from Chinese universities

In China, students usually get into universities based on their gaokao scores. But in the US, universities look at many different things:

●Your grades

●Your activities outside of class

●Your special talents

●Your personal story

●Your interests and goals

Good students and excellent professors can be found at hundreds of US universities, not just the highest-ranked ones.

What rankings don't show you

Rankings often focus on things that might not matter to you, such as:

●How few students they accept (being "selective")

●How many students graduate

●How famous the university's name is

But they don't show important things like:

●Whether the university has good support for international students

●How much individual attention you will get from professors

●Whether the university offers the specific program you want

●If the location and campus environment suit you

A surprising truth about famous universities

Here's something most people don't know: At many famous, highly-ranked universities, under graduate students rarely get taught by well-known professors. Instead, many classes are taught by graduate students or newer professors.

How to make a smart choice

Instead of just looking at rankings, ask yourself:

●What do I want to study?

●What kind of support will I need as an international student?

●What size school would make me comfortable?

●Can I afford this school?

●Does this location interest me?

Remember this!

Your goal should be finding the right university for YOU, not just picking the one with the highest ranking. Many excellent US universities might not appear in the top rankings but could offer exactly what you need to succeed.

More information, click Courtesy of Study USA.com www.studyusa.com/zh-cn

I'd been waitressing for months, earning extra money for college. "Since it's not too busy, go and see if Ray wants any more coffee," my boss said to me as he pointed to an older man sitting in the corner.

Ray was holding the cup in his hand as he stared out of the window. He was a re gular lunch customer on Mondays and Fridays.

"Can I refill the cup for you, Ray?" I asked. He looked up with a peaceful smile and held his cup out toward me. "You know, I've been coming here for several years, and I have to say you have the nicest smile," he whispered. "Can you sit for minutes... please?"

I sat down and he smiled,   "Your smile reminds me of my granddaughter, Sharon." He took out a picture of her from his wall et and handed it to me. "She graduated from college last year."

"What a nice-looking girl!" I said. "Does she live near you?"

Ray shook his head as he put the picture back in his wallet. "She moved to California last year. I miss her a lot. She and I used to have lunch together on Monday s and Fridays,"   he said. "She now wants me to move out there to be closer to her."

"So, why don't you?"

"I don't know if I really want to move. I've been here all my life," he answered.

I heard my boss calling me. "I guess that's meant for me," I said as I stood up.

We smiled at each other. "Ray……if my grandfather had been like you, I'd have asked him day and night to move closer to me, too."   I patted his shoulder. "Don't wait too long. Nice talking with you..."

For the next couple of weeks, Ray continued to come on Mondays and Fridays. But on that Monday of Thanksgiving week, he didn't show up. Then one Wednesday afternoon, walking out to my car after work, I heard a voice call my name from across the parking lot.

注意：1.续写词数应为 150个左右；   2.请按如下格式在答题卡的相应位置作答。

It was Ray, hurrying to catch up to me.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

"Have you made up your mind to move?" I asked.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

内容包括：1.分析原因；

2.你的观点和建议。

注意：词数80（开头已给出不计入词数）

Recently, it seems common that wild animals like foxes and racoons have been spotted in urban areas.

____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

I was lucky to grow up with my grandparents living with us. As a child, I didn't realize how important that was but, as I got older, I saw firsthand how much care and support they needed. After much reflection, I now understand that caring for the elderly isn't just about doing chores for them. It's about showing them respect, love and attention, as well as (find) the time to do so in a fast-paced and demanding world, a world many of us are time-poor.

My grandparents taught me that older people have a lot of wisdom to share. Their advice offers new perspectives on life, relationships and even success, precisely they've already experienced and navigated many of the struggles we are facing now. For instance, my grandma always reminded me to be patient and listen to others. Over time, I realized just absolutely correct she was.

However, with age (come) challenges. Tasks become more arduous (费力的). For someone who has been self-sufficient most of their life, this can destroy their confidence. We should (remind) of this often. When helping them manage their day, we should ensure that they maintain a sense of independence.

Beyond physical challenges, many elderly people often face loneliness or isolation, especially after losing friends and family over the years. Spending time with the elderly, it's just sitting down to have a conversation or watching TV together, can make an enormous difference. I remember how much my grandma's eyes would light up when we'd sit down to play a board game or chat about my school day. Little moments like show that you care, and they're more important than you might think.

Technology, too, can be a way to connect with them by helping them connect with others. Whether it's teaching them how to use smart devices, reach family over video calls, access services online, these small actions can make them feel like a part of a world that often seems (move) too quickly for them.

When I left school at eighteen, I opened several bank3 and collect numerous store and credit cards. I often4 buying things on my shopping trips that I didn't even want or ever use, just because of the" high" I got from making the purchases. My5 caused a lot of severe problems at home but my parents didn't understand what was going on, and I refused to talk about it — I felt too guilty and6 and usually kept all my possessions out of sight. In the end I left home but I just couldn't7 — I was spending my money on useless things and didn't have enough to8 the expense and bills for my daily life. I had to move back in with my parents and I tried to9 my spending. But I still couldn't10 the habit.

Eventually, I got professional help when I lost my11 because I was out of office shopping all day long. Counseling helped me to discover what12 me a shopping addict, and to set myself weekly13 to change my behavior. I am now successfully rebuilding my life and I'm slowly repaying my14. I am finally aware of who I am and I15 like myself now.

So that's the theory, but what does this look like in our everyday lives? But should we let these experiences block us from letting our guard down in the future? Schopenhauer's advice would probably be "yes".. For example, a review, which analyzed 148 studies involving 308,849 participants, found that individuals with strong social connections have a 50% increased like hood of survival. Additionally, the National Institute on Aging reports that the health risks of long-term isolation (隔离) are equivalent to smoking 15 cigarettes a day.

Psychological therapist Hilary Sanders explains chat behaviors like isolation or anger can serve as survival strategies during childhood. While these defenses may provide short-term protection, they can block meaningful connections if they persist.

In conclusion, the natural longing for connection drives us to seek out meaningful relationships, even when we know that weakness can lead to emotional pain. Yes, there are risks in exposing our true selves and emotions, but unlike hedgehogs, humans don't come with the quills built in. So when we learn to lower our defences for safe people, there's a chance we actually can have it all — the warmth of genuine relationships without the fear of being hurt.

A. However, modern research offers a different perspective.

B. This metaphor shows the importance of adaptability in nature.

C. Most of the defensive reactions originate from early experiences.

D. These experiences can make it difficult to trust others in the future.

E. Many people share stories of emotional pain from close relationships.

F. This reflects humans' struggle to balance closeness and self-protection.

G. We have the capacity to choose whom we trust and how we protect our selves.

In 2024 China's State Council issued a policy document on promoting a "silver economy to improve the well-being of the elderly". It called for companies to invest in elder-friendly industries such as smart health care, anti-ageing products, personal pensions and tourism. "Promote theme products such as nostalgic tours and youth tours," it recommended. The state has also called upon local governments to develop better services for old people, such as meal deliveries, at-home health care and cultural enrichment activities.

The focus on silver-haired spenders makes sense. The ageing society will have massive needs — and the coming generation of retirees will have money to spend. The UN estimates that the largest age group, aged 50 — 60, includes 230m people, most of whom will retire in the next decade. "They are the wealthiest sector of society," says Tim Lie of Quantasing, an educational-technology firm that pivoted to focus on the silver economy in 2022.

Older Chinese tend to be more frugal. But the growing groups of those in "new middle age" (45 — 60) and "old age" (over 60) are in a sweet spot in the middle, says Mr Xie. They spent most of their working lives in China's boom years and are retiring with enough time to enjoy their savings. Quantasing has attracted 120m users to its online courses, which help retired people develop hobbies such as calligraphy, meditation and piano. Only 400,000 are paying customers so far, but Quantasing expects that number to grow as it expands into wellness products and tourism.

There are challenges to developing the silver economy. The elderly are susceptible to scams. They will need consumer protection, even as the government encourages firms to sell them as much as possible. Chen Gong of Peking University warns that too many firms may be piling in without enough thorough research. "Many policies are shouting a lot but doing little," he says. Cai Fang of the Chinese Academy of Social Sciences points out that more welfare and social services for the elderly are needed. Silver-haired spending is bound to grow. It will be tougher to make sure that the well-being of China's old folks grows along with it.