1 . In order to survive trips to Mars, humans need oxygen. Now, a team of scientists has designed a robot that could extract oxygen from water on the Red Planet.
The robot, which is called “AI chemist”, used a machine learning model to find a compound that could ignite an oxygen-producing chemical reaction on Mars. The compound, known as a catalyst (催化剂), is made entirely from elements found in Martian meteorites (陨石) — which means, if such a system could work reliably, space travelers would not need to bring oxygen or even the catalyst needed to produce it.
Mars’ atmosphere contains only trace amounts of oxygen. But scientists have detected evidence of liquid water beneath the planet’s southern ice cap. To create the breathable gas, researchers wanted to find a way to break down this water into its hydrogen and oxygen molecules using materials found on Mars.
Their robot analyzed five meteorites that either came from Mars or had a composition similar to that of the Martian surface. Using a laser, it identified significant amounts of iron, nickel, calcium, magnesium, aluminum and manganese in the samples. From these six elements, the robot’s algorithm (算法) deter-mined it could produce more than 3.7 million possible molecules to break down water and form oxygen on Mars. According to the researchers, finding the best one from this extensive list would take roughly 2,000 years of human labor, but for the AI chemist, it took only weeks.
“On the Earth, we don’t use these six elements,” Yi Luo, a co-author of the study says. “They are not the best choices for catalysts, but it’s only what you’ve got on Mars.”
With its chosen catalyst, the system could produce oxygen from the Martian materials at around - 37℃, demonstrating the chemical reaction could be possible on the cold Martian surface.
Notably, the robot was able to carry out the entire process — analyzing the rock samples, identifying the Jest possible catalyst and producing it without human intervention.
1. What inspired the scientists to design the robot that could extract oxygen?| A．Surviving on the Earth. | B．Trips to Mars. |
| C．Traveling on the Moon. | D．Water shortage. |
| A．The existence of water and catalyst on Mars. | B．The oxygen that Mars’ atmosphere contains. |
| C．The scientists’ previous study on meteorites. | D．The low cost of “AI chemist”. |
| A．The finding of six elements. | B．The advantages of the robots. |
| C．The process of producing oxygen. | D．The formation of the meteorites. |
| A．Doubtful. | B．Unclear. | C．Favorable. | D．Indifferent. |
2 . You know that short walk to the shops and back? It’s about 10 minutes each way and you don’t know if you can be glad to make the trip, but that one short walk could save you from an early death, a new research by Cambridge University shows. In fact, as many as one in ten early deaths could be prevented if everyone managed at least half the recommended level of physical activity.
Risks of diseases such as heart disease, strokes(中风) — which were responsible for 17.9 million deaths in 2019 — and various cancers are all reduced with this simple short walk. This easy lifestyle change was also noted in an earlier study in January, 2023, so you really should give it a go.
By carrying out studies among a total of over 30 million participants, the latest Cambridge research found that just 75 minutes of exercise a week can reduce the risk of cancer by 7%. It was also enough to reduce the risk of developing cardiovascular(心血管的) disease by 17%.
Professor James Woodcock from the MRC Epidemiology Unit said, “We know that physical activity, such as walking or cycling, is good for you, especially if you feel it raises your heart rate. But what we’ve found is that there are many benefits to heart health and reducing your risk of cancer even if you can only manage 10 minutes every day.”
It goes without saying that doing the recommended 150 minutes per week is more beneficial than just 75 minutes. Around one in six early deaths would be prevented with the two plus hours of exercise, while 11% of cases of cardiovascular disease and 5% of cases of cancer would be avoided.
So what are you waiting for? Boots were made for walking.
1. What is Paragraph 2 mainly about?| A．The simplicity of a short walk. | B．The reason for people’s death. |
| C．The change in people’s lifestyle. | D．The benefits of doing exercise. |
| A．Walking can always raise people’s heart rate. |
| B．People need at least 75 minutes’ exercise a day. |
| C．10 minutes’ exercise a day can make a difference. |
| D．Physical activity is not that necessary for people. |
| A．By listing numbers. | B．By telling stories. |
| C．By describing the processes. | D．By quoting famous sayings. |
| A．In a science fiction. | B．In a health magazine. |
| C．In a geography book. | D．On a website for language learning. |
3 . TikTok, the widely popular social media platform, has taken the world by storm with its short-form videos and addictive content. But did you know that there is also a Chinese version of TikTok?
The Chinese version of TikTok is called Douyin, and it has quickly become one of the most widely used apps in China. Launched in 2016 by Beijing-based tech company ByteDance, Douyin has attracted an enormous user base and reshaped the social media landscape in China.
So, how did Douyin gain such vast popularity in China?
One of the factors contributing to Douyin’s success is the large population of smartphone users in China. With over 1.4 billion people, China has a massive user base for social media platforms. Additionally, the rise in internet penetration and the availability of affordable smartphones have made it easier for people to access and use Douyin.
Douyin takes advantage of China’s culture of sharing and enjoying bite-sized content. In China. there has always been a strong demand for short-form entertainment, including popular formats like variety shows, quick comedy skits, and music videos. Douyin provides a platform for users to easily create and share short videos, allowing them to express their creativity and talent.
Douyin leverages the power of social network effects. Users can follow each other, like and comment on videos, and engage with a large community of like-minded individuals. This sense of belonging and community encourages them to spend more time on the platform.
Moreover. Douyin continuously improves its features and algorithms to enhance user experience and keep users engaged. The app uses advanced AI technology to analyze user preferences and provide personalized recommendations, ensuring that users see content that is relevant and interesting to them.
Overall, the rise of the Chinese version of TikTok, Douyin, can be attributed to a combination of factors, including the large smartphone user base, the popularity of short-form entertainment in China, social network effects, and continuous improvements in features and algorithms.
1. How is Douyin different from TikTok?| A．Its algorithms. | B．Its target groups. | C．Its user experience. | D．Its main functions. |
| A．The popularity of long-form videos. |
| B．The low technology requirements to Douyin. |
| C．The large population of smartphone users. |
| D．The availability of different brands of mobile phones. |
| A．brings about | B．believes in | C．makes up for | D．makes full use of |
| A．Opinion — Description — Discussion | B．Topic — Argument — Emphasis |
| C．Introduction — Explanations — Summary | D．Main idea — Supporting examples — Conclusion |
4 . Many people around me make a difference to the world on a daily basis — being kind in unexpected ways and sharing the generosity of their lives with others. I, like many of them, volunteer some of my time in order to give back just a little of what I am so blessed to have. I volunteered to go to Guatemala with an eyeglass team from International Relief Teams — an organization I have supported in other ways for many years.
Our team went to a small town in Guatemala, San Augustin. We set up our tables and packages of pre-made glasses in the dirty courtyard of a clinic, put up the Snellen chart (an eye chart) on a wall, and began our work.
Young and old people came from many of the surrounding towns. Most had never received an eye exam before. They waited for hours patiently in the sun, never complaining. If we could help them out, their thankfulness for a simple pair of glasses was overwhelming. Some only left with eye drops or sunglasses, and even these people expressed their gratitude sincerely. All of them were very generous with blessings and smiles. We heard over and over from people who knew their eyes needed help but they had not gone to a doctor because it was too expensive, or had not got the glasses they needed for the same reason.
It’s so easy to overlook how much difference the volunteers’ small actions can make to the lives of people in Guatemala. The glasses in my country are so easily available, but to people in Guatemala, they are not.
As those who could give them a hand, we watched their lives change. What a gift sight is — and what a difference being able to see clearly makes! Here, we’d like you to join us and take action to help people in need. And every day, those actions change lives. No action is too small; no action is ever wasted.
1. According to Paragraph 1, the author is probably ________.| A．a major host of good deeds |
| B．a sponsor of an eyeglass team |
| C．a generous neighbor in his community |
| D．a supporter of International Relief Teams |
| A．Their working environment is simple. |
| B．They are medical experts nationwide. |
| C．Their initial preparation is inadequate. |
| D．They have served people in Guatemala for years. |
| A．Kind and helpful. | B．Poor but grateful. |
| C．Considerate and patient. | D．Knowledgeable but unhealthy. |
| A．To urge people to protect their eyes. |
| B．To ask people to volunteer in Guatemala. |
| C．To call on people to do good deeds in daily life. |
| D．To show the difficult life of people in Guatemala. |
5 . Self-control is the ability to regulate and adjust responses in order to avoid undesirable behaviors, increase desirable ones, and achieve long-term goals. Common goals such as losing weight, exercising regularly, eating healthy food, giving up bad habits, and saving money are just a few worthwhile ambitions that people believe require self-control.
One 2011 survey conducted by the American Psychological Association found that 27 percent of subjects identified a lack of willpower as the primary factor keeping them from reaching their goals. Researchers have found that people who have better self-control tend to be healthier and happier. In one experiment, students who exhibited greater self-control had better grades and higher test scores, and were more likely to be admitted to a competitive academic program. The study also found that when it came to academic success, self-control was a more important factor than IQ scores.
The psychologist Walter Mischel conducted famous experiments in 1975 that were related to delayed gratification. In these experiments, children were offered a choice: they could choose to eat one treat right away, usually a cookie or a candy or they could wait for a brief period of time in order to get two treats. At this point, the researcher would leave the child alone in a room with a single treat. Not surprisingly, many of the kids chose to eat the single treat the moment the experimenters left the room. However, some of the kids were able to wait for the second treat.
Based on his research, Mischel proposed what he referred to as a “hot-and-cool” system to explain the ability to delay gratification. The hot system refers to the part of our willpower that is emotional and impulsive (冲动的) and urges us to act upon our desires. The cool system is the part of our willpower that is rational (理性的) and thoughtful, and enables us to consider the consequences of our actions in order to resist our impulses.
Self-control is an important skill that allows us to regulate behavior in order to achieve our long-term goals. Research has shown that self-control is not only important for goal attainment, and people with greater willpower also tend to do better on all sides.
1. What kind of students does the author think will most probably do best in studies?| A．Those having the highest IQ scores. |
| B．Those respecting the teacher most. |
| C．Those having the greatest willpower. |
| D．Those performing most actively in class. |
| A．Effect. | B．Competition. | C．Hardship. | D．Enjoyment. |
| A．Few children could get two treats. |
| B．Not all the kids were short of patience. |
| C．Most of the children ate another treat. |
| D．Self-control is very important for one’s future. |
| A．Consuming plenty of sweet food. |
| B．Staying up late at night often. |
| C．Copying others’ homework. |
| D．Quitting drinking high-sugar drinks. |
6 . In this new digital era, farmers are finding ways to keep pace with the times while still holding fast to their traditions.
In the quiet and excluded parts of rural China, Xiang Qing, a man born in 1990, leads a life quite unlike the noisy urban existence that defines modernity. His home is Guzhang county, Xiangxi Tujia and Miao autonomous region, which is located deep in western Hunan province. Xiang Qing and his 23-year-old nephew, Xiang Hong, jointly operate a video channel called “Shan Bai”. Through their videos, they showcase handicrafts and rural life in China, fascinating many young urban viewers.
“Life here unfolds at its own pace. We grow crops and vegetables and occasionally purchase meat at the market,” Xiang Qing said. “I’ve come across numerous comments from people who watch our videos while lying in bed at night after a busy day of work, finding them truly relaxing and comforting. I think it’s great, and it’s in line with our initial intentions.”
Five years ago, Xiang Qing quit his job as a customer service representative in Shanghai and returned to his hometown in Guzhang county, starting a new journey as a video blogger. “Back in 2012, when I was a college student, film-making aroused my passion, and it has continued to be a profound and enduring interest,” he said.
Following in his uncle’s footsteps, Xiang Hong made the same life-changing decision. Having graduated from college last year, he also returned to his hometown in April from Changde, a city in Hunan, and ventured into the world of video production alongside his uncle.
Now their video channel Shan Bai has attracted more than 59.8 million followers. Xiang Qing designs, films, and edits the videos himself. Xiang Hong serves as the video presenter. Long Lingling, Xiang Qing’s wife, manages the day-to-day operations of the video account, and other family members also contribute to the video production process in different ways.
1. Why do Xiang Qing and Xiang Hong work as video bloggers?| A．To pursue personal fame and wealth. |
| B．To promote the business of film-making. |
| C．To financially support their whole family. |
| D．To popularize the lifestyle in their hometown. |
| A．Xiang Qing influenced Xiang Hong’s career option. |
| B．Xiao Hong quit his first job and switched to video making. |
| C．They reached a decision of returning to hometown together. |
| D．They got involved in each step of the video production process. |
| A．Modest and responsible. | B．Diligent and optimistic. |
| C．Devoted and innovative. | D．Ambitious and demanding. |
7 . When you think of a map, is north on the top or the bottom? Usually, maps are designed with north on top, though when we think about it, there is no logical reason for this bias (偏见). After all, there is no up or down in space. So what is wrong with south, east or west being on the top of the map? The answer is: nothing at all. In fact, north-up maps only became the norm in the last few hundred years.
Ancient Egyptian maps had south at the top because the Nile River flows downhill from mountains in the south to the Mediterranean Sea in the north. Mecca was to the south of most early Muslim civilizations, and south-up maps were designed so that viewers would look up to see Mecca. Medieval Christian maps had east at the top, as they believed the Garden of Eden was in the east. The only early maps that had north at the top were those of early China because the emperor lived in the north.
North seems to have settled at the top of maps during the 16th century, largely thanks to a Flemish mapmaker, Mercator. Mercator was a great admirer of an early Greek mapmaker, who, for reasons now unknown, put north at the top of maps, so Mercator did, too. When Mercator’s world map became the standard map to navigate the oceans, north up became standard as well.
What is the implication of this north-view of the world? Psychologically, people tend to think of up as good and down as bad. Just think of words and phrases like “upmarket”, “upbeat” and “moving up in the world”, and how they contrast with their opposites. Because north is so consistently put at the top of maps, people now think of north as good, too.
Several attempts have been made in recent years by introducing south-up maps to the market. These maps not only give us a chance to see the world differently, but also give everyone the chance to see themselves on top.
1. What can we learn from the first two paragraphs?| A．North-up maps were rare in ancient times. |
| B．Deciding up or down in space is ridiculous. |
| C．Mecca maps were based on a legend. |
| D．The south-up map first appeared in ancient Egypt. |
| A．An illogical reason. | B．The spread of Mercator’s maps. |
| C．People’s preference for up. | D．An age-old tradition in Greece. |
| A．Cautious. | B．Supportive. | C．Uncaring. | D．Disapproving. |
| A．To criticize a phenomenon. | B．To compare various facts. |
| C．To correct a cultural bias. | D．To argue for a viewpoint. |
8 . This year marks the 20th anniversary of China’s first manned space mission, with Yang Liwei becoming the first Chinese astronaut to go to space. Since then, another 19 astronauts have reached for the stars. The selection of the fourth generation of astronauts began in 2022 and is now in full swing. Experts revealed how tough the training is before astronauts can fly to space.
The human body is not designed for space life. Astronauts are faced with multiple challenges on a space mission. The changes in gravity can have an impact on their bodies. The sensation of confinement(封闭)living in a small spacecraft for months can damage their mental health. Emergencies during missions challenge their knowledge and ability to solve problems under huge pressure. So it’s no wonder that astronauts have to meet extremely high standards and go through a tough training program.
To make sure that Chinese astronauts complete their missions and return to Earth safely, “Eight types, including over 200 subjects of training, were set,” Huang Weifen, chief designer of the astronaut system for China’s manned space project, told CCTV News. Apart from physical fitness training, it also includes basic scientific theories, psychological health, and mock(模拟)missions.
Among the training subjects, the most tiring one is underwater training. This training is designed for astronauts to adapt to the microgravity environment in space. According to Huang, astronauts stay underwater in suits weighing over 100 kilograms for six hours at a time. Water resistance(阻力)and the heavy suit make every move exhausting. “Nie Haisheng, one of the astronauts, once reported a two-kilogram loss in weight after one underwater training exercise,” said Huang. Each astronaut receives training for at least three and a half years before having the chance to go to space.
1. How many generations of Chinese astronauts have been sent to space?| A．3 | B．4 | C．19 | D．20 |
| A．Human body is perfect for space exploration. |
| B．The spacecraft has enough space for astronauts to operate. |
| C．Astronauts ought to complete missions under huge pressure. |
| D．The isolated condition in space benefits people’s mental health. |
| A．To stress how challenging the training is. | B．To describe Nie’s personal achievements. |
| C．To introduce the weight limit for astronauts. | D．To explain the importance of proper training. |
| A．Microgravity environment cause health problems. |
| B．Astronauts need tough training to meet various challenges. |
| C．China has completed numerous missions in space exploration. |
| D．Experts reveals the high standards of selection process of astronauts. |
9 . The words “caring” and “empathetic” (共情的) aren’t ones normally associated with technology. Yearsley, an Australian enterpriser who is expert in artificial intelligence (AI), is trying to change that.
Yearsley is the founder of Akin, a robotics startup that currently uses a tablet-based system to help users manage the tasks related to home life, whether that’s planning meals or reminding you to pay your cell phone bill. Current home devices made by Google or Amazon or Apple use predictive AI to track patterns, strengthen behaviors and manipulate (操控) buying decisions, some of which, she assumes, are questionable or just unhealthy.
In contrast, the AI that she is developing will be designed to run the human home, encouraging healthful decisions such as taking a nightly walk, refilling the fridge and supporting social interactions like lunches or birthday celebrations with friends. “It’s the hardest AI I have ever built for it’s a complex system,” Yearsley says.
Yearsley began developing the Akin technology in 2017, when she realized the need to better manage the home is hugely ignored. Besides, she realized that women unequally bear the burden of household work. A United Nations’ report estimates that women do2.6 times the amount of unpaid care and domestic work that men do, or close to 30 hours per week in the U. S. alone.
While Yearsley pictures an army of robots someday helping with routine homemade tasks, the first display for Akin will take time and money. Akin has received some early seed money from a handful of investors, and was recently selected as a finalist for tech giant LG Nova’s Mission for the Future program, an annual challenge that seeks to identify businesses having potential to improve life and lead society into the future.
1. What might the Akin’s AI system suggest?| A．Consuming more drinks to enjoy yourself. | B．Staying up late working to make more money. |
| C．Spending more time staying with your family. | D．Purchasing products that may attract you. |
| A．The high cost of current home devices. | B．Akin’s becoming a finalist for a program. |
| C．Financial support from investors. | D．Heavy burden of housewives. |
| A．Questionable and unhealthy. | B．Unstable and insecure. |
| C．Thoughtful and innovative. | D．Mature and ideal. |
| A．To introduce a futuristic AI system. | B．To compare two companies’ AI systems. |
| C．To call on people to care about housewives. | D．To seek support for an AI expert. |
10 . During the Gold Rush, merchants needed a faster way to ship their goods to the West, turning every voyage into a race. The current record holder was the Surprise, which had made the New York to San Francisco trip in ninety-six days. Ellen planned to break that record with her ship, the Flying Cloud.
To achieve the goal, Ellen learned to use navigation (航海) instruments and do the complicated math calculations from her captain father. She also studied positioning charts made by Lieutenant Marthew, Ellen’s race against time began on June 2, 1851. It was her responsibility to keep track of the ship’s progress and current position and to plan the best course for it to follow. She chose a course different from the ones ships normally used and the Flying Cloud passed the equator two days less than ever before.
Heading south, when Ellen and the Flying Cloud was about to reach the Cape Horn, powerful wind slammed into the ship, tipping it sideways. Thirty-foot waves crashed over the deck. Ellen knew that the fastest way to get there was through the Strait of Le Maire. But it was risky. The narrow strip of water was only fourteen miles wide with rocky coasts on both sides. It would not be a problem on a clear day. But Flying Cloud was hit with their worst storm yet. Between the blinding snow and the lack of daylight, visibility was cut to almost nothing. Ellen used dead reckoning to plot a course she hoped would take the Flying Cloud toward the entrance to the strait.Finally, when the skies cleared, Ellen was relieved to see that she were right and everyone were safe on board. On July 22, lucky winds pushed the ship through the strait.Finally, at eleven-thirty the morning of August 3l, 185l, Flying Cloud had completed its voyage in eighty-nine days and twenty-one hours, beating Surprise’s record by an entire week.Crowds gathered on the beach to watch Flying Cloud’s arrival. News of the broken record spread quickly, making Ellen an instant celebrity. Her achievements were recognized in newspapers across the country, The success of her voyage required a combination of skill, experience and courage. Luckily, Ellen had them all.
1. What was Ellen’s main job on the Flying Cloud?| A．Doing math calculation and making charts. |
| B．Analyzing the data and predicting the weather. |
| C．Locating the ship’s position and deciding the course. |
| D．Following the captain’s instructions and drawing maps. |
| A．Intelligent and generous. | B．Brave and straightforward. |
| C．Adventurous and sensitive. | D．Ambitious and committed. |
| A．Personification. | B．Simile. | C．Metaphor. | D．Repetition. |
| A．The powerful waves. | B．The rocky coasts. |
| C．The narrow strip of water. | D．The low visibility |
