1 . That artificial food dyes (染料) are unhealthy is not news. Some are known to cause hyperactivity (多动症) in some children, affecting their ability to learn. But regulatory agencies (监管机构) around the world don’t necessarily agree on which food dyes are a problem, or why. That may soon change. A 2021 peer-reviewed report by California’s Office of Environmental Health Hazard Assessment concluded that artificial food dyes “cause or worsen neurobehavioral (神经行为的) problems in some children” and that the current levels that are regarded safe for consumption by the federal government are too high.
California is now considering requiring warning labels on food products and dietary supplements containing the seven most commonly used artificial dyes. The warning label requirement would put California on par with the European Union, which since 2010 has required food products containing certain artificial food dyes to carry warning labels about their negative effect on activity and attention in children.
Artificial dyes are used in foods for one reason: to make products look prettier. Bright colors make candies appealing, especially to kids. But dyes are also in chocolate cake mixes, salad dressings and other products that don’t seem to cry out for a color boost.
In Europe, it was the 2010 label lawmaking that triggered (引发) companies’ decisions to reformulate. “If you’re a company, you do not want to put a warning label on your product.” says Lefferts, an environmental health consultant. Warning labels are why European Starburst Fruit Chews are now colored with natural products, not the artificial dyes that brighten their North American counterparts (同类商品).
Given that artificial food dyes are used far more than needed, we need to be more cautious. After all, we don’t dye fresh fruits and vegetables, but we do dye candy and sprinkles, points out Joe Schwarcz, a chemistry professor at McGill University in Montreal. “The foods in which you find food dyes are foods that are poor in nutrition,” he says. “If you limit foods that contain food dyes, you automatically make your diet better.”
1. What can we learn about artificial food dyes from paragraph 1?| A．A 2021 report confirmed their negative effects. |
| B．The fact that they are harmful is newly revealed. |
| C．Regulatory agencies consider them a serious problem. |
| D．The Federal government thinks their current standard too high. |
| A．In opposition to. | B．In line with. | C．Ahead of. | D．Behind. |
| A．Food companies will stop coloring their products. |
| B．More fresh fruits and vegetables will appear in the market. |
| C．Food companies may replace artificial dyes with natural products. |
| D．It will be hard to find packaged foods without warning labels of dyes. |
| A．Approving. | B．Neutral. | C．Tolerant. | D．Concerned. |
2 . Black taxis have been a common sight in London for many years. Now these taxis and their drivers have become the focus of a new study into Alzheimer’s (阿尔兹海默症). For those on the outside, it may seem that behind the wheel of these black taxis are just common people who help move us to our places. But hidden within their brains is a map of London’s streets that has put GPS technology to shame for many years.
“The knowledge”, the test for London’s taxi drivers, stands among the hardest tests one could ever experience. It includes remembering information repeatedly from the memory of minute details about between 25, 000 and 56, 000 streets in London, depending on who’s taking the test, from the Trafalgar Square to the tiniest residential lanes (居民巷).
Usually, the hippocampus (马体) feels the influences of Alzheimer’s most. The hippocampus controls the brain’s short-term memory and spatial memory (空间记忆) systems. University College London and Alzheimer’s Research UK are coming together to study these taxi drivers’ brains. And the taxi drivers’ hippocampi continue to grow as they go on doing the job for more years. This suggests that perhaps there’s something we can do to reproduce the influence on the general population.
Lead researcher Hugo Spiers was part of the team which 20 years ago found that, like birds’, the taxi drivers’ hippocampi slowly got bigger. In fact, research has found for years that any animal that requires detailed spatial knowledge of their land experiences growth in the hippocampus.
Spiers’ team hopes to deal with Alzheimer’s by studying the taxi drivers “brains, since the hippocampus becomes smaller with the development of Alzheimer’s. To collect more information, Spiers has asked thirty London’s taxi drivers connected to an MRI machine to drive around. The machine will allow the researchers to keep a real-time watch on the workings of the hippocampus. “It’s been a joy to help scientists fight the disease,” said taxi driver Robert Lordan.
1. What can we learn about “The knowledge’?| A．It lasts for a few minutes only. | B．It invites some residents to be testers. |
| C．It is a great challenge to people’s memory. | D．It is usually held in London's busy streets. |
| A．Animals’ hippocampi are quite different from humans’. |
| B．The new study can do good to animals as well. |
| C．More detailed studies on animals’ brains are needed. |
| D．Animals’ hippocampi are similar to humans’ |
| A．To decide who has the largest hippocampus. |
| B．To find out what their hippocampi are doing at work. |
| C．To know how Alzheimer’s develops in their brains. |
| D．To test whether the machine influences the hippocampus. |
3 . “Why do I live? Why do I wish for anything, or do anything? Is there anything in my life that will not be destroyed by my death?”
These are the words of the famous Russian writer Leo Tolstoy. Like Tolstoy, many people ask these difficult questions. And they struggle to find meaning in their life. Tolstoy spent his whole life trying to answer difficult questions like these. His search for answers influenced his writing.
On August 28th, 1828, Leo Tolstoy was born in the country of Russia.
As a child, Tolstoy was a member of the Russian Catholic Church. But as a young man, he began to question that faith. Tolstoy wanted to make his own moral decisions; he was tired of being told what to believe. He thought people could achieve a degree of perfection if they tried hard enough. So he worked very hard at being the best in everything he did. He thought that he would find meaning and truth in success.
In the 1850s, Leo Tolstoy wrote his first stories. He wrote about his experiences in the army. He also told stories about when he was a child. These works were published and Tolstoy became a well-known writer.
Tolstoy was finally successful. He earned the respect he always wanted. Many wealthy and intelligent men met and talked with Tolstoy. Some of the men were writers like him. They talked a lot about faith and the meaning of life. But soon Tolstoy recognized that these men were not perfect. Now he knew they could not answer his questions about faith.
So in the 1860s, Tolstoy tried a different way to find meaning. He opened a school for the children of his serfs—the people who worked on his land. These workers were very poor. He wanted to help them because he thought they were more honest than the wealthy people he knew.
Tolstoy learned many things from his workers. He respected how they worked hard to provide for their families.
He began to believe that marriage and family would give his life meaning. So in 1862, Leo Tolstoy married a young woman named Sonya Behrs.
The next 15 years were the best years of Tolstoy's life. It was during this time that he wrote his most famous books-War and Peace and Anna Karenina. Many literature experts say that War and Peace is one of the greatest books ever written.
Both War and Peace and Anna Karenina communicate Tolstoy's beliefs about the Russian nation, church and people. They also communicate what he thought was the answer to all his questions. Tolstoy believed humans were supposed to live a simple life and take care of their families. Tolstoy thought this would satisfy him and bring him happiness.
Leo Tolstoy is still a very respected writer today. His faith and writings have influenced many people.
Tolstoy's search for the meaning of life is something everyone can understand. His teachings still interest people all over the world.
1. Which shows the correct order of the following events?①Tolstoy served in the army ②Tolstoy got married ③Tolstoy wrote War and Peace
④ Tolstoy started a school. ⑤Tolstoy became a well-known writer.
| A．①②③④⑤ | B．⑤①③②④ | C．①⑤④②③ | D．⑤④①③② |
| A．Respect | B．Defend. | C．Support. | D．Comfort. |
| A．Leo Tolstoy: Living for writing | B．Leo Tolstoy: Influencing the world |
| C．Leo Tolstoy: Being the best in everything | D．Leo Tolstoy: Searching for the meaning of life |
4 . The term “Hudson River school” was applied to the foremost representatives of nineteenth-century North American landscape painting. Apparently unknown during the golden days of the American landscape movement, which began around 1850s and lasted until the late 1860s, the Hudson River school seems to have emerged in the 1870s as a direct result of the struggle between the old and the new generations of artists each to assert its own style as the representative American art. The older painters, most of whom were born before 1835, practiced in a mode often self-taught and monopolized by landscape subject matter and were securely established in and fostered by the reigning American art organization, the National Academy of Design.
The younger painters returning home from training in Europe worked more with figural subject matter and in a bold and impressionistic technique; their prospects for patronage in their own country were uncertain, and they sought to attract it by attaining academic recognition in New York. One of the results of the conflict between the two factions was that what in previous years had been referred to as the American, native, or, occasionally New York school — the most representative school of American art in any genre — had by 1890s become firmly established in the minds of critics and public alike as the Hudson River school.
The sobriquet was first applied around 1879. While it was not intended as flattering, it was hardly inappropriate. The Academicians at whom it was aimed had worked and socialized in New York, the Hudson’s port city, and had painted the river and its shores with varying frequency. Most important, perhaps, was that they had all maintained with a certain fidelity a manner of technique and composition consistent with those of America’s first popular landscape artist, Thomas Cole, who built a career painting the Catskill Mountain scenery bordering the Hudson River.
A possible implication in the term applied to the group of landscapists was that many of them had, like Cole, lived on or near the banks of the Hudson. Further, the river had long served as the principal route to other sketching grounds favored by the Academicians, particularly the Adirondacks and the mountains of Vermont and New Hampshire different ways.
1. According to the passage what was the function of the National Academy of Design for the painters born before 1835?| A．It mediated conflicts between artists. | B．It supervised the incorporation of new artistic techniques. |
| C．It supported their growth and development. | D．It determined which subjects were appropriate. |
| A．In New Hampshire. | B．In the Adirondacks. |
| C．In Vermon. | D．In Europe. |
| A．people | B．sides | C．cities | D．images |
| A．Hudson River School | B．The Nature’s Nation |
| C．Early Painters and Their Drawings | D．North American Landscape Painting |
5 . People from East Asia tend to have more difficulty than those from Europe in distinguishing facial expressions — and a new report published online in Current Biology explains why.
Rachael Jack, University of Glasgow researcher, said that rather than scanning evenly (均匀的) across a face as Westerners do, Easterners fix their attention on the eyes.
“We show that Easterners and Westerners look at different face features to read facial expressions,” Jack said. “Westerners look at the eyes and the mouth in equal measure, whereas Easterners favor the eyes and neglect the mouth.”
According to Jack and her colleagues, the discovery shows that human communication of emotion is more complex than previously believed. As a result, facial expressions that had been considered universally recognizable cannot be used to reliably convey emotion in cross-cultural situations.
The researchers studied cultural differences in the recognition of facial expressions by recording the eye movements of 13 Western Caucasian and 13 East Asian people while they observed pictures of expressive faces and put them into categories: happy, sad, surprised, fearful, disgusted, angry, or neutral. They compared how accurately participants read those facial expressions using their particular eye movement strategies.
It turned out that Easterners focused much greater attention on the eyes and made significantly more errors than Westerners did. “The cultural difference in eye movements that they show is probably a reflection of cultural difference in facial expressions,” Jack said. “Our data suggest that whereas Westerners use the whole face to convey emotion, Easterners use the eyes more and mouth less.”
In short, the data show that facial expressions are not universal signals of human emotion. From here on, examining how cultural factors have diversified these basic social skills will help our understanding of human emotion. Otherwise, when it comes to communicating emotions across cultures, Easterners and Westerners will find themselves lost in translation.
1. The discovery shows that Westerners ________.| A．pay equal attention to the eyes and the mouth |
| B．consider facial expressions universally reliable |
| C．observe the eyes and the mouth in different ways |
| D．have more difficulty in recognizing facial expressions |
| A．The participants in the study. |
| B．The researchers of the study. |
| C．The errors made during the study. |
| D．The data collected from the study. |
| A．do translation more successfully |
| B．study the mouth more frequently |
| C．examine the eyes more attentively |
| D．read facial expressions more correctly |
| A．The Eye as the Window to the Soul |
| B．Cultural Differences in Reading Emotions |
| C．Effective Methods to Develop Social Skills |
| D．How to Increase Cross-cultural Understanding |
6 . It was meant to connect us, make us smarter and our lives easier. And it has. But there’s at least one comer of life where the Internet has made things so much more difficult: gift giving.
Once upon a time, if you were struggling to find a present for a loved one, there were easy options to fall back on-DVDs, CDs, video games and other physical media. This wasn’t even that long ago, but now it’s been snatched from our grasp by the Internet offering us the chance, at a relatively low cost, to watch, listen to or read whatever we want, whenever we want. With everything already watched, listened to, or read, buying a present has become near impossible.
Therefore, we all have to work at becoming perfect gift givers, taking all factors into consideration and searching high and low to seek out the ideal present. If we go the extra mile, there’s less chance that the person we have in mind has already bought what we’re considering online.
But as I now consider this exact plan of action, I’m thinking perhaps it’s not all that bad. Maybe the Internet is delivering us a lesson, firm but fair: the era of half-baked present purchasing is over and it’s time to go hard or go home.
In this era of immediate satisfaction, if you want to give someone a useful present, you do have to actually go to the effort of sourcing something nice for them. Perhaps that’s making for a more rewarding gift experience for all involved. And perhaps it also means fewer gifts that are given as an excuse and end up being unused.
1. How is the topic of gift giving introduced in Paragraph 1?| A．By demonstrating the prospect of the Internet. |
| B．By showing the difficulty in using the Internet. |
| C．By pointing out the shortcoming of the Internet. |
| D．By arguing about the possible benefits of the Internet. |
| A．Numerous gift options. | B．Relative high cost for presents. |
| C．Limited offer from digital giants. | D．Easy access to the Internet versions. |
| A．Purchase satisfactory gifts. | B．Try to select a present. |
| C．Buy fewer gifts as an excuse. | D．Make more valuable presents. |
| A．Confused. | B．Critical. | C．Neutral. | D．Acceptable. |
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1. What plays a role in both fat losing and muscle building?| A．Caloric intake. | B．Balanced diet. |
| C．Muscle tissue. | D．Physical fitness. |
| A．Effective questioning. | B．Perception of time. |
| C．Enthusiasm for sports. | D．A little willpower. |
| A．A health brochure. | B．A commercial advertisement. |
| C．A critical comment. | D．An essay on a wellness website. |
8 . In recent years American society has become increasingly dependent on its universities to find solutions to its major problems. It is the universities that have been to blame for developing the expertise to place men on the moon; for dealing with our urban problems and with our worsening environment; for developing the means to feed the world’s rapidly increasing population. The effort involved in meeting these demands presents its own problems. In addition, however, this concentration on the creation of new knowledge significantly impinges on the universities’ efforts to perform their other principal functions, the transmission and interpretation of knowledge-the imparting of the heritage of the past and the preparing of the next generation to carry it forward.
With regard to this, perhaps their most traditionally acknowledged task, college and universities today find themselves in a serious situation. On one hand, there is the American commitment, especially since World War Ⅱ, to provide higher education for all young people who can profit from it. The result of the commitment has been a dramatic rise in enrollments(登记入学) in our universities, coupled with a striking shift from the private to the public sector of higher education.
On the other hand, there are serious and continuing limitations on the resources available for higher education. While higher education has become a great ”growth industry“, it is also at the same time a tremendous drain(耗竭) on the resources of the nation. With the vast increase in enrollment and the shift in priorities away from education in state and federal(联邦的) budgets, there is in most of our public institutions a significant decrease in expenses for their students. One crucial aspect of this drain on resources lies in the persistent shortage of trained faculty(全体教师), which has led, in turn, to a declining standard of competence in instruction.
Intensifying these difficulties is, as indicated above, the concern with research, with its increasing claims on resources and the attention of the faculty. In addition, there is a strong tendency for the institutions’ organization and functioning to fulfill the demands of research rather than those of teaching.
1. According to Paragraph 1, what should be the most important function of American universities?| A．Sparing no effort to create new knowledge for students. |
| B．Enhancing students’ competence of tackling social problems. |
| C．Making experts on advanced industries out of their students. |
| D．Preparing their students to transmit the knowledge of the past. |
| A．more students and less investment | B．education quality and economic profit |
| C．low enrollment rate and high education demand | D．private ownership and American commitment |
| A．many public institutions have to cut down enrollments of students |
| B．teachers are not competent enough to perform satisfactorily in class |
| C．some institutions are forced to reduce the total expenses on research |
| D．there is keen competition for resources between public and private institutions |
| A．The improper distribution of American universities’ resources. |
| B．The increasing argument over American universities’ primary task. |
| C．The inability of American universities’ organization and fulfillment. |
| D．The growing focus on American universities’ function of research. |
9 . Bottled water has long been marketed as a safe drink—if it doesn’t come straight from a mountain spring, it’s at least clean and free of chemicals. But a new study demonstrates that bottled water may not be so safe when it comes to microscopic plastic pollutants capable of passing into the bloodstream.
For years scientists have raised the alarm over microplastics, which form when plastics break down into increasingly smaller particles (微粒), ranging from five millimeters down to one micrometer. Previous studies have found that a liter of bottled water can contain tens of thousands of identifiable plastic particles. But they stopped at the one micrometer level due to technological restrictions.
The study used a new technology to find even smaller particles, and detected an average240,000 plastic particles per liter of bottled water. About 90% of the particles were considered nanoplastics, smaller than one micrometer. Unlike microplastics, they are capable of passing through some organs like lungs into the bloodstream. From there they can stay in the heart muscle and other organs, pass into the brain, and even into the bodies of unborn babies.
So far, little research shows what nanoplastics exactly do once they enter the bloodstream. But there is much evidence that chemicals used in plastic production are bad for human health. Even if nanoplastics themselves are not deleterious, they can serve as carriers for the dangerous chemicals, increasing the risk of cancer and impacting key organs such as the heart.
“There is a huge world of nanoplastics to be studied,” said the researchers. Even if nanoplastics make up 90% of the number of plastic particles found in bottled water, they make up far less in mass, they said. However, this fact provides little comfort: It’s the numbers rather than mass that matter; and the smaller things are, the more readily they can get inside us.
1. What does the technological barrier in the previous studies concern?| A．The number of microscopic plastics. | B．The quality of water bottles. |
| C．The distribution of plastic pollutants. | D．The size of plastic particles. |
| A．They are not very likely to pollute bottled water. |
| B．Their number per liter of bottled water is constant. |
| C．They are less potentially risky to health than nanoplastics. |
| D．Their number in springs is larger than that of nanoplastics. |
| A．Large. | B．Useless. | C．Safe. | D．Harmful. |
| A．They are too small to identify. | B．They have easy access to organs. |
| C．They are dangerous regarding mass. | D．They have a higher percentage in life. |
10 . The impact of technology on language is a topic that often causes concern, with many assuming that it is simply ruining it. However, language experts resist such pessimism, noting that there is little evidence to support the view that speech is getting worse. Gretchen McCulloch, in her book Because Internet, focuses on what can be learned about language from the internet rather than talking about its supposed negative effects.
McCulloch compares studying language online to growing bacteria (细菌) in a Petri dish,where trends emerge and disappear quickly, allowing language experts to observe changes that would otherwise take a considerable amount of time. The influence of strong ties like friends or family vs weaker ties on language change is analyzed, with computer simulations (模拟) revealing that having both strong and weaker ties helps spread updates in a community.
The role of social media platforms in language change is also discussed. Twitter, with its mix of strong and weak ties, is shown to drive more language change than Facebook, which is controlled by stronger ties. Emoji is highlighted as a universal digital expression of gestures, not a language. Additionally, there is evidence that the use of internet“innovations”such as“omg”dates back to pre-computer eras.
McCulloch’s book focuses on the birth of a new medium rather than a new language. The rise of mass writing on the internet, characterized by frequent, error-filled, and short-lived communication, challenges traditional ideas about writing’s importance. McCulloch suggests future historians should see this as a return to more casual (随意的) language, paying more attention to the value of tools that improve social interaction online. The book argues against the idea that these changes might lead to the end of “real” writing, advocating for an appreciation of anything that enhances human connection and the enjoyment of each other’s company.
1. How might McCulloch sound in her book Because Internet?| A．Sensitive. | B．Scientific. | C．Pessimistic. | D．Dismissive. |
| A．The development of digital language. |
| B．The difference between social media platforms. |
| C．The influence of the internet on language change. |
| D．The connection between humans and the internet. |
| A．Interpersonal bonds play a role in online communication. |
| B．Formal language is unlikely to improve social interaction. |
| C．The birth of new media has removed writing’s importance. |
| D．Mass writing can make web-based conversations effective. |
| A．How to Achieve Network Effect? | B．Technology, Fear or Convenience? |
| C．What If Faced with Media Terms? | D．Internet Degrades or Helps Speech? |
