1 . Scientists have known for years that plants respond to sounds around them. For example, flowers make sweeter nectar (花蜜) to the sound of buzzing bees. But now scientists in Israel have shown that plants also seem to be doing some “talking”.
Professor Lilach Hadany and her team at Tel Aviv University set up microphones to record tomato and tobacco plants under different conditions. Their recordings revealed that the plants made ultrasonic sounds (超声波) .
It’s not clear how the plants make the sounds. One idea is that air bubbles (气泡) form inside the plant’s stem, and that these popping bubbles make a clicking sound. It’s also not clear if the plants are making the sounds on purpose. Sometimes people’s knees creak, too, but they’re not doing it on purpose.
But the plants are definitely making noise, and creating much more noise when they’re stressed than when they’re not.
In fact, the researchers trained an Artificial Intelligence (AI) system to identify the different kinds of clicking sounds. The system was able to tell the difference between plants that needed water and plants with cuts about 70% of the time.
The result suggests that researchers may one day be able to use a plant’s sounds to figure out when it is having trouble, and what trouble it is having. They hope that could be very helpful to farmers.
The new discovery raises many more questions. One important question is: Do plants make sounds to communicate with each other?
Other research has shown that plants do seem to communicate in some ways. Plants being attacked by insects send chemicals into the air. Soon, nearby plants that haven’t been attacked yet start to make other chemicals that don’t taste good to insects. It’s possible that the ultrasonic sounds could work in a similar way.
Another big question is: Is anything listening to the plants? Dr. Hadany points out that mice and moths, for example, depend on plants, and can hear ultrasonic frequencies. The clicks may tell these animals when a plant isn’t healthy, so they can avoid it.
The team’s research has already changed our ideas about plants. As Dr. Hadany says, “Even in a quiet field, there are actually sounds that we don’t hear, and those sounds carry information.”
1. Why does the author mention flowers in Paragraph 1?| A．To prove plants can hear the sounds. | B．To show plants make ultrasonic sounds. |
| C．To make a comparison with other plants. | D．To arouse the readers’ interest in the text. |
| A．The plants convey information by touch. | B．The attacked plants make ultrasonic sounds. |
| C．The attacked plants send poor-taste chemicals. | D．The wind blows the odor of the attacked plants. |
| A．To prove plants can talk. | B．To make a new discovery. |
| C．To promote plants’ better growth. | D．To have more knowledge of plants. |
| A．Plants “Talk” | B．Amazing Plants |
| C．Ultrasonic “Dances” | D．Wonderful Sounds |
2 . XZERO, “World’s Most Walkable City” Will Be Built in Kuwait
Do you fancy giving up your car for good, but are worried you won’t be able to get around? Plans have been released for the “world’s most walkable city”.
Dubbed XZERO, the planned sustainable community in Kuwait would provide a net zero carbon lifestyle for 100, 000 residents, in balance with nature. All facilities and homes will be powered by 100 per cent renewable energy and will recycle all their water with smart water system.
UAE-based designers URB say the city will provide food and energy security while promoting a green circular economy. The estimated cost of the project is £13 billion, and URB are aiming to start construction in 2024, to complete by 2034.
The central area is surrounded by a series of “hubs” (枢纽) , each dedicated to education, entertainment and medical facilities. The hubs will reduce the walking distances required of residents, while the homes are densely spaced to promote a connected community. The green-tech hub will promote a collaborative innovative environment in food, energy, water and water tech. The medical hub will feature an autism (自闭症) village, wellness center and clinics. The educational hub will feature a nursery, school and an institute, while the commercial hub will include indoor mall and flexible office space. The green landscape is designed with engineered natural areas to provide a variation of habitats for wildlife as well as rain water harvesting, mitigating (和缓的) flooding, better air quality and cleaner water. The 1, 600 hectare development will provide 30, 000 residential units, as well as 30, 000 green jobs. These jobs will be created in the various hubs.
“The creation of sustainable cities that follow the highest standards of living with lowest impact on the environment is no longer a choice, it has become a necessity,” Baharsh Bagherian, the CEO of URB, said, “The heart of XZERO is the unique resilient (弹性的) landscape, which is multifunctional and designed to promote health, wellbeing and biodiversity.”
XZERO will promote sustainable tourism through its various eco-friendly hospitality assets, including a 5-star eco resort and eco lodges. “Edutainment” (寓教于乐型) facilities such as the utility park and nature conservation center are expected to transform the city into a unique visitor attraction.
1. What is XZERO intended to do?| A．Better residents’ life. | B．Save the limited energy. |
| C．Explore a challenging lifestyle. | D．Strengthen the power of Kuwait. |
| A．Wild animals can’t be found. | B．The hubs are closely connected. |
| C．Only indoor mall is available. | D．Residents have trouble finding a job. |
| A．People have the right to say no to XZERO. |
| B．Many other countries are expected to follow suit. |
| C．XZERO will promote the development of tourism. |
| D．XZERO can benefit both humans and environment. |
| A．Doubtful. | B．Short-lived. | C．Far-reaching. | D．Unidentifiable. |
3 . When we think about lives filled with meaning, we often focus on people whose grand contributions benefited humanity. Abraham Lincoln,Martin Luther King and Nelson Mandela surely felt they had a worthwhile life. But how about us ordinary people,struggling in a typical existence?
There is an important element to consider. Think about the first butterfly you stop to admire after a long winter or imagine the scenery at the top of a hill after a fresh hike. Sometimes existence delivers us small moments of beauty. When people are open to appreciating such experiences, these moments may enhance how they view their life. This element is defined as EA (experiential appreciation) by Joshua Hicks, a psychological professor at Texas A &M University.
Recently, he and his research team set out to figure out whether EA was related to a person’s sense of meaning in a series of studies that involved more than 3,000 participants. At an initial test, researchers had participants rate their agreement of different coping strategies to relieve their stress. They found people who managed stress by focusing on their appreciation for life’s beauty also reported experiencing life as highly meaningful.
Researchers then conducted a series of experiments, in which they gave participants specific tasks and, once more, asked them to report how strongly they identified with statements linked to purpose, etc. In one case, participants who watched an awe-inspiring video reported having a greater sense of EA and meaning in life, compared with those who watched more neutral videos. After reflecting on the results collected from the participants, researchers confirmed their original theory.
But applying that insight can be difficult.Our modern, fast-paced, project-oriented lifestyles fill the day with targets and goals. We are on the go, and we attempt to maximize output both at work and at leisure.
This focus on future outcomes makes it all too easy to miss what is happening right now. Yet life happens in the present moment. We should slow down, let life surprise us and embrace the significance in the everyday life.
1. Why are the butterfly and the scenery on a hill mentioned in paragraph 2?| A．To introduce a concept. |
| B．To attract readers’ interest. |
| C．To demonstrate the beauty of nature. |
| D．To show the necessity of protecting nature. |
| A．By designing different strategies to reduce stress |
| B．By studying previous research data. |
| C．By shooting videos starring the participants. |
| D．By analyzing the response from the participants. |
| A．A person who always gets her life well-organized. |
| B．A person who often hears motivating speeches. |
| C．A person who leads a fast-paced life |
| D．A person who always expects future results. |
| A．No pains, no gains. |
| B．Those who believe in their ability can do anything. |
| C．Live your life one day at a time. |
| D．Being on sea, sail; being on land, settle. |
4 . Top 4 must-see ancient villages in Beijing
Beijing is a world-famous historical and cultural city with a history of more than 3, 000 years. The rich and profound ancient village culture found in and around the city remains an important part of the capital’s history and culture. Below we recommend 4 must-see ancient villages in the Beijing area as the 2024 May Day holiday approaches.
Lingshui villageLocated in the northwest of Mentougou district, Lingshui village was formed in the Liao and Jin dynasties. The ancient dwellings in Lingshui village are a model of rural residential buildings during the Ming and Qing dynasties (1368-1911) in northerm China, and their original appearance is well preserved. Tourists can explore over 120 folk houses, alongside many cultural relics in the village.
Shuiyu villageShuiyu village is in Fangshan district. The village was built during the Ming and Qing dynasties. With 600 houses and more than 100 sets of courtyard houses from the Ming and Qing dynasties, the original cultural ecology of the village has been well maintained. Facing both north and south, the village is laid out in a circular shape, forming a unique architectural style.
Sangyu villageSangyu village lies in the north of Mentougou district, Beijing, next to Lingshui village. Prior to the Ming dynasty (1368-1644) , Sangyu village was called Sanyu or “encountering” in English, named for the three water channels that meet in the village. Dense mulberry tree forests surround the entire village, and when they bear fruit, purple mulberries light up the village valley.
Malan villageMalan village, which means “horse stable” in English, had a history of keeping horses that dates back to the Ming dynasty. The ancient buildings in Malan village are made of stone and mud. When building and repairing houses in the village, people try their best to maintain their original appearance. There is also an exhibition hall, a row of old houses, as well as 12 gate bridges in the the village.
1. Which village is designed round according to the text?| A．Lingshui village. | B．Shuiyu village. |
| C．Sangyu village. | D．Malan village. |
| A．They are models of rural buildings. |
| B．The houses are made of stones and mud. |
| C．Their original appearance are well maintained. |
| D．They were built during the Ming and Qing dynasties. |
| A．Nature. | B．Agriculture. | C．Geography. | D．Tourism. |
5 . Defeating Daniil Medvedev in New York on Sunday, Djokovic, one of the greatest tennis player, bagging 24 Grand Slam (大满贯) singles titles, equalized the record held by Australian Margaret Court, the same number of singles titles in the all-time count.
With the victory, Djokovic became the oldest US Open men’s singles champion in the Open Era. In total, he has 10 Australian Opens, seven Wimbledons, four US Opens and three Roland Garros titles, making him the only man to win all four majors at least three times. “When I realized that, I started to dream new dreams and set new goals. I never imagined that I would be here talking about 24 Slams,” he said afterwards.
Djokovic reached all finals in the Grand Slams in 2023, and the only loss was at Wimbledon, when Carlos Alcaraz of Spain, 20, brought home the champion after an intense battle lasting four hours and 43 minutes.
Djokovic, at 36, shows few signs of losing physical edge. He stays healthy, keeps exceptional skills and always desires to win more. Capturing his first Grand Slam in 2008, Djokovic bagged half of his 24 major titles after he turned 30.“One of the biggest lessons I have learned probably mentally throughout my career is that even if you find a formula (方案) that works, it’s not a guarantee, and actually most likely it’s not going to work the next year, so I keep reinventing myself and always trying to find better ways to win,” said Djokovic.
For Djokovic, who always gets tough when the going gets tough, 24 is just a number that he can go beyond. “I’ll continue to prioritize Grand Slams as my most important tournaments and where I want to play the best tennis. That will stay the same in the next season, or I don’t know how many more seasons I have in my legs,” he added, “So, let’s see.”
1. What does the underlined word “equalized” in the first paragraph probably mean?| A．Set. | B．Broke. | C．Levelled. | D．Approached. |
| A．He won 12 Grand Slams in his thirties. |
| B．He won all the finals in the Grand Slams in 2023. |
| C．He attached the same importance to all the matches. |
| D．He is the oldest men’s singles champion in the open era. |
| A．Losing physical edge. | B．Attending more Grand Slams. |
| C．Following a good formula. | D．Finding flexible and proper strategies. |
| A．Confident and emotional. | B．Ambitious and devoted. |
| C．Aggressive and stubborn. | D．Enthusiastic and generous. |
6 . Born in Anhui Province, Tao Xingzhi (October18, 1891-July 25, 1946) was one of the greatest educationalists, social activists and patriots in modern China. When he was young, Tao lived in a poverty-stricken area and had witnessed miserable life of Chinese people, especially that of the peasants who accounted for 80% of the nation’s population, under the suppression of foreign invaders (外国侵略者的压迫) at that time.
After graduating from Nanjing University as the top student with the highest scores in all courses, Tao set out for the US to further his education. At first, he studied politics in University of Illinois but soon he found that politics offered no help for saving the country, and then he changed his major into education.
Six-year experience abroad let Tao Xingzhi come to realize the sharp contrast between China and developed countries, and drove him to make up his mind to change the situation in China. Tao declined a number of invitations from many famous universities and gave up high salaries as a college professor. Instead, he set up Xiaozhuang Normal School in the countryside of Nanjing to develop educational cause in rural areas. When he returned to China from Japan in 1939, Tao set up Yu Cai School in Sichuan Province for the kids who lost their family in Anti-Japanese War (抗日战争). He picked out those with special talents and trained them to be useful men for the nation. Zhou Enlai, former Chinese premier, once paid a visit to this school and gave a high praise.
As an educationalist, Tao devoted his entire life to the educational-cause for Chinese. Quite different from other major educationalists at that time, Tao carried out life education and said that “life education means an education of life, by life and for life”. Because of overtoil (积劳成疾), he died on July 25, 1946 in Shanghai. Chairman Mao praised him as “a great educationalist for the people”. In memory of this great man, Tao Xingzhi Museum was built in Shanghai in 1986.
1. The underlined phrase “accounted for” in the first paragraph has the same meaning of the phrase “______”.| A．depended on | B．took up | C．carried out | D．put off |
| A．Mr Tao returned from Japan to China |
| B．Mr Tao set up Yu Cai School in Sichuan Province |
| C．Mr Tao picked out some with special talents and trained them |
| D．Mr Tao established Xiaozhuang Normal School in Nanjing |
| A．Tao Xingzhi’s great contribution | B．Tao Xingzhi’s diseases |
| C．Tao Xingzhi’s daily life | D．Tao Xingzhi’s educational theories |
| A．a tourist website | B．an entertainment website |
| C．an educational website· | D．a scientific research website |
7 . The amount of plastic pollution in the oceans is rapidly increasing. This is problematic, as at least 700 species of sea animals may mistake it for a tasty snack. While we know that some species seem to eat plastic because it looks like jellyfish or some other food sources, less research has been carried out into what plastic smells like to marine animals.
But now, a study from the University of North Carolina has found that the coating of algae that naturally builds up on ocean plastics causes the rubbish to give off the scent of food.
The researchers took 15 loggerhead turtles, each around five months old, and placed them in a laboratory tank. They then piped in clean water, clean plastic, turtle food, and plastic that had been immersed in the marine environment for five weeks.
The turtles showed no reaction to the smell of clean water or clean plastic. But when they were exposed to the smell of ocean-soaked plastic or turtle food, they exhibited food-seeking behaviours like reaching their noses out of the water or showing increasing activities.
“This finding is the first demonstration that the smell of ocean plastics causes animals to eat them, ” said Dr Kenneth J. Lohmann, who took part in the study. “It’s common to find loggerhead turtles with their digestive systems fully or partially blocked because they’ve eaten plastic materials. There are also increasing reports of sea turtles that have become ill and stranded on the beach due to their ingestion (摄食) of plastic.”
According to the researchers, areas of the ocean with dense concentrations of plastic may trick turtles and other marine animals into thinking that there is an abundant food source. “Once these plastics are in the ocean, we don’t have a good way to remove them or prevent them from smelling like food,” said Lohmann.
1. Why is plastic pollution posing a threat to marine animals?| A．It may eat up all jellyfish. |
| B．It may mislead them as food. |
| C．It may kill them with its smell. |
| D．It may trap 700 species of sea animals. |
| A．Sea water. | B．Clear water. |
| C．Brand-new plastic. | D．Sea-soaked plastic. |
| A．Turtles should be trained to be more intelligent. |
| B．Plastics should be kept from getting into the ocean. |
| C．An abundant food source should be offered to sea animals. |
| D．Researchers should come up with a solution to the current problem. |
| A．Ways Found to Remove Plastic |
| B．Loggerhead Turtles Faced with Food Shortage |
| C．Ocean Plastics Smell like Food to Turtles |
| D．Plastic Pollution — Compromise or Control? |
8 . Israel was accused of using white phosphorus bombs (白磷弹), a banned bomb, in the Palestine-Israel conflict in October. However, the Israeli military later claimed in a statement that it didn’t use such a weapon, reported Reuters.
White phosphorus is a highly free burning chemical that can create intense heat, light and smoke, reaching over 1,000°C when burned. The flame it produces is difficult to put out, leading to deadly burns on the human body.
The chemical is also poisonous. Those coming into contact with it may suffer heart, kidney or bone damage. And bomb-hit areas are likely to be polluted by white phosphorus, resulting in long-term environmental damage.
This news sparked public concern about destructive weapons. International humanitarian law (IHL) bans any weapon “of a nature to cause overmuch injury or unnecessary suffering”. Such a weapon can cause indiscriminate harm, injuring or killing soldiers as well as civilians.
The Geneva Conventions (《日内瓦公约》) and their Additional Protocols, which form the core of international humanitarian law, have set requirements for all countries to follow about how wars are carried out. For example, the use, production, stockpiling (储备) or selling of biological and chemical weapons are forbidden.
Chemical weapons, such as mustard gas, are poisonous. They can cause temporary or permanent damage to people and have various effects, such as severe eye pain, breathing difficulty, and blistering (起水泡) of the skin. Biological weapons, usually developed from viruses or bacteria, attack the human immune system, often with deadly consequences.
Other international conventions also have made related rules, which apply to the countries that have agreed to them. For example, according to the IHL database, any actions expected to result in widespread, long-lasting destruction of the environment are prohibited.
“During the Vietnam War, the US military employed a highly effective defoliant (落叶剂) called Agent Orange,” Zhang Gaosheng, are searcher at China Institute of International Studies, told CCTV News. “This resulted in the destruction of about 20 percent of Vietnam’s forests, leading to significant damage to the ecosystem.” The usage of the chemical was subsequently banned, he added.
1. What is the primary concern regarding the use of white phosphorus bombs in wars?| A．The intense heat and light produced. |
| B．The difficulty in putting out the flame. |
| C．The harm to people and the environment. |
| D．The damage to buildings and infrastructure. |
| A．The development of biochemical weapons. |
| B．The long-lasting impact of biochemical weapons. |
| C．The urgency of prohibiting biochemical weapons. |
| D．The consequences of using biochemical weapons. |
| A．Favorable. | B．Opposed. |
| C．Indifferent. | D．Approving. |
| A．To call on public not to use weapons. |
| B．To appeal for peace between Palestine and Israel. |
| C．To give the reasons why some weapons are being stopped. |
| D．To introduce the chemical weapons used in the Israeli military. |
9 . The contestant Jane Marczewski, whose stage name is Nightbirde, recently entered the TV reality show America’s Got Talent. Looking small on stage, but with an attractive smile that filled the auditorium, the 30-year-old woman introduced herself to the judges.
It was when she planned on devoting herself to music that the singer from Ohio found out she had cancer. On stage she said that she was battling cancer. Pretty casually she said that at her last check-up she had some cancer in her lungs and liver. While she professed (自称) to be okay, she explained that she wanted people to see her as being “so much more than the bad things that happen to me”. Getting out there on stage with her own song It’s OK, she was able to pass on this message.
The name “Nightbirde” itself is significant. She chose it after many night s dreaming of birds singing in the darkness. She woke one night to hear birds singing by her window as if it were the morning. For her this represents hope and her life at the moment. “I want to be that way, even when I am in the middle of a dark time and there are no signs that it will end. I want to be the bird that sings in anticipation of the good things that I trust are coming,” she shared with Liberty Journal.
Finally, her actual performance was quite triumphant. It wasn’t surprising that everybody was visibly amazed by it. And it didn’t take long for Simon Cowell, one of the judges to send Nightbirde directly through to the final. Nightbirde’s song has already stormed up the charts and is now number one on US iTunes.
1. Why did Jane Marczewski choose Nightbirde as her stage name?| A．She dreamed of singing beautifully like a bird. |
| B．The singing of birds always made her refreshed at night. |
| C．The singing of birds reminded her there is always hope. |
| D．She thought birds are a source of inspiration for her songs. |
| A．Strong and optimistic. | B．Modest and ambitious. |
| C．Confident and adaptable. | D．Creative and considerate |
| A．Sedate | B．Imperfect | C．Remarkable | D．Susceptible |
| A．Nightbirde’s way to her huge success. |
| B．Nightbirde’s faith shines on America’s Got Talent. |
| C．Nightbirde’s unusual experience in a TV interview. |
| D．Nightbirde’s devotion to music helps her fight against cancer. |
10 . The idea behind the Internet of Things (IoT) is that the world would be a better place if all sorts of electronics would be computerized. Billions of tiny computers could monitor air quality and traffic patterns. It is estimated that there could be a trillion connected devices in the world by 2035 — more than 100 for every person..
With continued growth in the IoT, regularly replacing a trillion batteries would be inconvenient. Researchers have built chips that get energy from light or heat. But such sources producing only a small amount of power can’t be used to replace a battery, the maintenance of which can be difficult and costly, especially in places where a battery is hard to reach.
Aline Eid and her colleagues proposed a better idea. Using a piece of equipment called a Rotman lens, they have designed a small, flexible antenna (天线) to harvest electrical power from signals of 5G mobile phone towers. Rotman lenses, which were invented in 1963, focus and redirect electromagnetic (电磁的) radiation. “Most people use Rotman lenses in the transmission (发送) mode,” says Dr. Eid. “We decided to change that concept, and use them in the opposite mode.”
Her lens is able to collect electromagnetic radiation from all directions. Letting it work in urban environments in which waves spread unpredictably improves the amount of harvest able power greatly. And 5G also offers more power in the first place. The standard on which it is based covers communications on a wide range of frequencies. Furthermore, 5G’s frequencies ranging between 24GHz and 100 GHz are rarely used, so 5G networks are unlikely to suffer from the disturbance from a huge number of devices.
According to the team, their antenna can harvest useful quantities of power even at a long distance, Feeding their work into computer models suggests it should be able to harvest around six microwatts of power at a distance of 180 meters from a tower. That is enough to let the sort of simple, low-power chips that will make up the IoT do useful work. If more power is needed, a bigger antenna can be used.
1. What has been a barrier in the development of IoT technology?| A．How to efficiently power IoT devices. | B．How to monitor a mass of tiny computers. |
| C．How to reduce the cost of maintaining IoT chips. | D．How to computerize different sorts of electronics. |
| A．They can send radio signals to 5G towers. | B．They can communicate with 5G frequencies. |
| C．They can receive electromagnetic radiation. | D．They can broadcast radiation waves in all directions. |
| A．Having stricter standards. | B．Consuming less power to operate. |
| C．Supporting a wide range of devices. | D．Having little risk of being disturbed. |
| A．Transmission distance is a potential challenge. |
| B．The goal of constructing the IoT can be achieved. |
| C．There is a long way to go in terms of 5G technology… |
| D．New generations of mobile phones are power-consuming. |
