1 . Smith had to drive across the Sahara Desert. It was a journey across hundreds of miles of empty desert.
After he had been driving for a few hours, there was a sandstorm. His car left the road and then broke down.
Smith began walking north across the hot sand under the scorching sun. He hoped he would soon reach the road again. Soon, his tongue was thick with thirst. He needed water, but everywhere he looked there was nothing except sand.
Smith kept walking. Then, about an hour later, a man riding a camel came into sight. Smith waved to him. The man on the camel rode up to him and stopped. “Please,” Smith said, “I am dying of thirst. Let me have some of your water.” The man slowly shook his head. “You can’t have any water,” he said, “but I’ll sell you a necktie.” “I don’t want a necktie,” Smith shouted at him furiously. “I need water.” But the man turned away quickly and rode off.
Smith continued walking. Two hours later, he met another man riding a camel. This time he asked if he could buy some water, but the man refused, saying, “No, but I’II sell you a necktie.” Angrily, Smith turned away from him and continued walking.
Three hours later, by which time he was near death, Smith saw a large luxury hotel in the distance. It stood alone in the middle of the desert, surrounded by palm trees.
Smith managed to reach the main entrance. He was about to enter the hotel when the doorman stopped him. “Hey!” he said. “This is a first-class hotel. You can’t come in here without a necktie.”
1. What happened to Smith at the very beginning of the sandstorm?| A．He became thirsty. | B．He saw two men riding a camel. |
| C．He lost his necktie. | D．There was something wrong with his car. |
| A．slowly. | B．politely. |
| C．angrily. | D．painfully. |
| A．He was thirsty. | B．He was not properly dressed. |
| C．He had no money. | D．He was very sick and near death. |
| A．We’d better not go to the Sahara Desert. |
| B．Your car should be maintained before a journey. |
| C．It’s a good idea to buy neckties during the journey. |
| D．When looking backwards, you can connect many events. |
2 . Part of the importance of the practice of capacity building is that too many of us think our intellectual capabilities and focus are fixed. However, Benjamin Hardy, a psychologist and author, recently presented groundbreaking research that suggests that we can often change by changing our environment.
“Because people's lives become routine, you begin to see very predictable behaviors and attitudes,” Hardy says. This is why personality is viewed as stable and predictable over time. Hardy's book, Personality isn't Permanent, digs into this concept.
We regard our childhood, teenage years and 20s as our foundational learning periods. It can be common to think we can't learn as effectively as we grow older. But Hardy argues that we really stop learning because we stop trying new things.
In our young lives, we experience a number of “firsts”, ranging from social experiences to leaning opportunities. Absorbing new experiences is crucial to ensuring we keep expanding our minds and changing our personalities.
Learning new things is a great starting point to changing your personality for the better. Also consider making substantial changes to your professional environment. This can manifest in several ways. If you're a successful leader maybe you'd like to share your knowledge with others by coaching, writing or speaking. Anything that pushes you outside the limits of your normal work life can ensure you keep growing and changing.
In Personality Isn't Permanent, Hardy discusses a study from Harvard psychologist Dr. Ellen Langer. In 1981, Langer and her graduate students selected a group of men in their 70s and placed them in an environment modeled to look like the 1950s. It featured a black-and-white television, mid-century furniture and magazines from the era. As Hardy explains, “The goal was to trigger their minds and bodies to exhibit the energy and biological responses of a much younger person.” It actually worked.
1. Why do people think personality is fixed?| A．Because life becomes regular and foreseeable. | B．Because people refuse to read new books |
| C．Because the brain becomes less effective. | D．Because people's intelligence turns stable. |
| A．Reread a fantastic book. | B．Devote fully to daily work. |
| C．Learn a new kind of sport. | D．Talk with an old friend. |
| A．Construct | B．Distinguish. | C．Predict. | D．Appear. |
| A．The facilities in Harvard need improving | B．Younger persons accept new things better |
| C．Langer's study consumed a lot of energy. | D．The participants' performance improved. |
3 . “We can't play tennis because you don't have a net.” I was standing on a suburban street when Eric, the boy next door, said that to me. Two rackets(球拍)in hand, I felt my face burning and anger spread through my 10-year-old body.
“I don't have net? You don't have net. Your father and mother don't have net,” I yelled, firing at him with what I thought was a hurt. I just had to make him understand that I had plenty of net. Eric was speechless. He admitted that indeed, he and his family had neither a tennis court nor a net, but he seemed unable to make sense of my reaction to this shortcoming.
As a new arrival to the United States, armed with limited English words, I had thought that “net” meant "manners". Eric didn't want to play with me because I lacked good manners. It was only after I stormed home that my brother, who had been in America for a decade, explained where I had gone wrong.
Language barriers are the most common communication barriers. Even when we speak the same language, understanding and being understood can be difficult, not to mention communicating in a foreign language. And confusion and amusement follows-a phenomenon that is common in sitcom(情景喜剧).For example, in a 1970s British sitcom, a foreign student says “squeeze(捏)me”, instead of “excuse me”, to his young principal.
That's the thing with languages. Though the languages are technically the same, the meanings, implications and interpretations of words are different. No two people really speak the same one. But in order to be understood, we should be willing to use more words and expressions and have the patience to find out more about what is happening to get a whole picture of the situation.
1. Why was the author angry?| A．Eric refused to lend him a bat. | B．He thought Eric was rude to him. |
| C．Eric laughed at his limited English. | D．He had to play tennis without a net. |
| A．His bad manners. | B．His poor background. |
| C．His limited vocabulary. | D．His violent character. |
| A．Went angrily. | B．Left hurriedly. |
| C．Attacked suddenly. | D．Disappeared completely. |
| A．They are worsened by sitcoms. |
| B．They contribute to cultural differences. |
| C．They can be overcome by sending and receiving ideas. |
| D．They exist even between speakers of the same language. |
4 . It's easy to understand why early humans domesticated dogs as their new best friends. Domesticated dogs can guard against fierce animals and provide warmth during cold nights. But those benefits only come following domestication. Despite more than a century of study, scientists have struggled to understand what it was that caused the domestication process in the first place.
A new theory given by Maria Lahtinen, a senior researcher, might be able to explain this puzzle. She made this theory when studying the diet of late Pleistocene hunter gatherers in Arctic and sub-Arctic Eurasia. At that time, around 20,000 to 15,000 years ago, the world was in the coldest period of the last ice age.
In cold environments then, as today, humans tended to gain the majority of their food from animals. Nutritional deficiencies came from the absence of fat and carbohydrates, not necessary protein. Indeed, if humans eat too much meat, they can develop protein poisoning and even die. “Because we humans are not fully adapted to a diet that is carnivorous, we simply cannot digest protein very well,” Lahtinen says.
During that time, animals that humans killed for food would have been struggling to live, barely having fat and composed mostly of lean muscle. Using previously published early fossil records, Lahtinen and her colleagues calculated that the animals killed by people in the Arctic and sub-Arctic during this time would have provided much more protein than they could have safely consumed.
Under the tough circumstances of the Arctic and sub-Arctic ice age winter, sharing excess meat with dogs would have cost people nothing. The descendants of wolves that took advantage of such handouts would have become more gentle toward humans over time, and they likely went on to become the first domesticated dogs.
1. What has been confusing scientists in the past century?| A．How domesticated dogs benefited humans. | B．When humans began to domesticate dogs. |
| C．What led to dog domestication originally. | D．Why early humans made friends with dogs. |
| A．All-meat | B．Low-fats | C．Fast-changing. | D．Over-cooked. |
| A．They struggled with wolves. |
| B．They shared meat with dogs. |
| C．They existed on the earth for about 5,000 years. |
| D．They had trouble adapting to the cold environment. |
| A．were al dangerous animals. | B．provided enough fat for humans. |
| C．became a food source for some dogs. | D．lacked protein needed for a healthy diet. |
5 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.
That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.
But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.
One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.
“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”
Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.
1. Why do researchers and government agencies work on cooling the earth?| A．To prevent natural disasters. | B．To win more time to reduce gas emissions. |
| C．To imitate volcanic eruptions. | D．To encourage more people to bur fossil fuels. |
| A．More volcanoes will throw out. |
| B．More solar energy will go into space. |
| C．More disasters will endanger the future of the world. |
| D．People will keep burning fossil fuels to keep warm. |
| A．He thinks more research remains to be done. |
| B．He is optimistic about the effect of cooling the earth. |
| C．He is concerned about the reduction in agriculture production. |
| D．He disapproves of the practice of solar climate intervention. |
| A．The rainfall pattern of a region. |
| B．The modest drop in temperature. |
| C．The number of extreme weather events. |
| D．The injection amount of aerosol. |
6 . Dogs can’t speak, but their brains respond to spoken words. Every dog owner knows that saying “Good dog!” in a happy, high voice will make their pet joyfully wag its tail. That made scientists curious: What exactly happens in your dog’s brain when it hears praise, and is it similar to the way our own brain processes such information?
When a person gets others’ compliment, the more primitive, subcortical auditory regions (皮层下听觉区) first reacts to the intonation — the emotional force of spoken words. Next, the brain taps the more recently evolved auditory cortex (听觉皮层) to figure out the meaning of the words, which is learned.
In 2016, a team of scientists discovered that dogs’ brains, like those of humans, compute the intonation and meaning of a word separately — although dogs use their right brain to do so, whereas we use our left one. Still, a puzzle remained: Do their brains go through the same steps to process approval?
It’s an important question, because dogs are a speechless species, yet they respond correctly to our words. For instance, some dogs are capable of recognising thousands of names of individual objects, and can link each name to a specific object.
When the scientists studied scans of the brains of pet dogs, they found that theirs, like ours, process the sounds of spoken words in this manner — analyzing first the emotional component with the older region of the brain, the subcortical regions, and then the words’ meaning with the newer part, the cortex.
See why dogs are so successful at partnering with us? Dogs and humans last shared a common ancestor some 100 million years ago, so it’s likely that our brains respond to sounds in a similar way. As domesticated animals that have evolved alongside humans for the past 10,000 years, dogs make special use of it to process human emotions. You know, what we say really matters to dogs!
1. Which of the following can replace the underlined word “compliment”?| A．Reply. | B．Praise. | C．Warning. | D．Advice. |
| A．Linking it to an object. | B．Analyzing the emotion. |
| C．Working out its meaning. | D．Tapping the auditory cortex. |
| A．By comparing opinions. | B．By raising examples. |
| C．By providing answers to questions. | D．By analyzing causes and effects. |
| A．Dogs—good listeners |
| B．Dogs—perfect partners |
| C．Dogs and humans share a common ancestor actually |
| D．Dogs understand spoken words the same way we do |
7 . What happens when you cross stem cells from a frog heart and frog skin? Not much-that is, until you program those cells to move. In that case, you've created a xenobot, a new type of organism that's part robot, part living thing.
Now a team of scientists has used living cells from frog embryos and assembled them into entirely new life-forms. These millimeter-wide xenobots can move toward a specific target and pull themselves through after being cut.
These are novel living machines," says Joshua Bongarch a computer scientist and robotics expert at the University of Vermont who co-led the new research. "They're neither a traditional robot nor a known species of animal. It's a new living, programmable organism.
Xenobots borrow their name from Xenopus laevis, the name for the African clawed frog from which the researchers harvested the stem cells. They combined together well two different kinds of cells-heart and skin cells. The heart cells are competent in expanding and contracting, which aids the xenobot in locomotion, and the skin cells administer structure. Besides, they can't accomplish tasks without the help of computers.
By studying these curious organisms, researchers hope to learn more about the mysterious world of cellular communication. Plus, these kinds of robo-organisms could possibly be the key to drug transmission in the body or greener environmental clean-up techniques.
“Most technologies are made from steel, concrete, chemicals, and plastics, which degrade(降解)over time and can generate harmful ecological and health side effects the authors note in a research paper. "When these xenobots finally do stop working, they fall apart harmlessly.
“Promising as these organisms are, when we start to mess around with complex systems that we don't understand, we're going to get unintended consequences Michael Levin, a biophysicist and co-author of the study, says in a press statement.
1. What do we know about the xenobot?| A．It is not easy to degrade over time. |
| B．It can recover itself after being cut. |
| C．It will never die with a computer inside. |
| D．It is named after a kind of American frog. |
| A．Appearance. | B．Position. |
| C．Application. | D．Movement. |
| A．recycle waste in nature. |
| B．replace certain damaged organs. |
| C．deliver medicine inside patients. |
| D．improve communication technology. |
| A．Xenobots can be put into the market soon. |
| B．Xenobots are created totally by accident. |
| C．More research should be done on xenobots. |
| D．It is hard for people to understand xenobots. |
8 . There was a time when the major concern with AI safety had been the one evil super intelligence, reflected in the movie “The Terminator”. However, the game “Tacoma” takes a different approach. It assumes that there will be numerous AGI (artificial general intelligence) in the world and that any AGI, even a safely designed one, in the wrong hands at the wrong time could cause live« to be lost. That's the future that a growing number of AI safety experts are worried about.
This is not a new idea. In the book “Engineering a Safer World,” MIT professor Nancy G. Leveson addresses common misunderstandings about safety-critical systems engineering: engineering systems whose failure could lead to human loss. Such safety-critical technologies include aviation, nuclear power, automobiles, heavy chemicals, biotechnology, and, of course, AGI.
So what can be done?
Technology isn’t always the solution. A famous example is the invention of sonic radars (声波雷达) that were supposed to help ships detect nearby obstacles, but which only increased the rate of accidents. Why? Captains sailed faster, thinking they could get away with it thanks to the new safety technology.
Instead of technologies, Leveson's book suggests, we should be making organizational changes. Additionally, Leveson suggests, among many complicated guidelines, organizations should be aware that safety guidelines will inevitably become lax over time. As a consequence, measures should be carried out to prevent potential disasters.
What lessons can we draw from concern with AI safety? The answer may lie in recent disaster narratives (叙述), which remind us that, especially in limes like this, we shouldn't forget the potential for other disasters. Public conscience really does matter. And if we're all better at thinking about safety we citizens, maybe we really can prevent disasters.
1. Why does the author mentioned “The Terminator” in the first paragraph?| A．To arouse readers' interest in The Terminator. |
| B．To introduce the topic of concern with AI safely. |
| C．To mention the similarity between “The Terminator” and “Tacoma”. |
| D．To make readers recall the evil super intelligence reflected in the movie. |
| A．Because captains seldom used them. |
| B．Because the radars failed to work properly. |
| C．Because captains depended on them too much. |
| D．Because the ships couldn't detect nearby obstacles. |
| A．Safe. | B．Important. |
| C．Unreliable. | D．Unnecessary. |
| A．Disaster prevention Lessons from AI. |
| B．Safety problems in modern society. |
| C．Engineering development in modern days. |
| D．Future applications of artificial intelligence. |
9 . On October 3, 1945, a ten-year-old boy stood on stage at a contest. One of his teachers had encouraged him to enter the contest after hearing him sing one morning. He placed fifth.
A few months later, he received a guitar for his 11th birthday. What he really wanted was a bicycle. Two of his uncles gave him basic guitar lessons. But he didn’t like singing in public. He was too shy.
Yet something inside kept pulling him back to music. In 1948, his family moved to Memphis, Tennessee. The boy would spend every moment of his free time on Beale Street, the heart of the Memphis Blues Scene. He’d often bring his guitar to school. Yet his eighth grade teacher gave him a C in music. She told him that he had “no gift for singing”.
In 1953, the young man walked into the offices of Sun Records. But the record went nowhere. He tried out for a local singing group, but failed in the audition. He told his father, “They told me I couldn’t sing.”
Then Sam Philips, the owner of Sun Records heard this young man’s record. Sam invited him back to the studio and asked him to sing as many songs as he knew. Yet even then, it was not going well. The young man was about to go home when he suddenly picked up his guitar and started singing a 1946 Blues song, That’s All Right. Philips immediately began taping; he knew this was the sound he’d been looking for. Sun Records released the album. No one had ever heard anything like it before.
Within three years Elvis Presley（猫王）was an international superstar.
1. What did the boy hope for as the 11th birthday gift?| A．A guitar. | B．A birthday party. |
| C．A bike. | D．A music lesson. |
| A．He eventually gave up singing. | B．His teacher encouraged him. |
| C．His family sent him to a music school. | D．He was still addicted to music. |
| A．A short performance. | B．A previous plan. |
| C．A singing contest. | D．A new record. |
| A．Actions speak louder than words. |
| B．Two heads are better than one. |
| C．A friend in need is a friend indeed. |
| D．Where there is a will, there is a way. |
10 . Garbage often has negative associations with germs (细菌)，dirt and useless junk. However, a recent art exhibition proved that “useless” things can have practical significance.
Dear Pretty Rubbish, an art event organized by the World Wide Fund for Nature (WWFN) and digital media art company Blackbow, was held in Beijing. It looked at wasteful consumption (消耗) and asked questions about the relationship between our lifestyles and our garbage.
“We hope that everyone who visited the show can think about how ‘useless things’ are produced, why they are tossed out (扔走), and whether ‘useless things’ are really useless,” said Cao Yujia, the design director of Blackbow.
The organizers said that all the raw materials for the exhibition were collected from community garbage cans.
Artists Zhou Yuxuan and Liu Yifan collected nylon cable ties (尼龙扎带), LED lights and beverage bottles from designers’ workshops to create a work where plastics, in the shape of cells, “grow” in a corner. There, the lights blink (闪烁) regularly to imitate (模仿) “breathing”. When people walk near it, the work responds by forming light patterns, as if communicating with the visitors.
Speaking about the work, Zhou said: “It’s like some kind of communication between humans and plastics.”
Plastic has a life longer than almost any creature, taking centuries to decompose. Though people blame plastics for damage to the environment, they are a big part of our daily lives.
“So we want to ask the question: Although the damage continues, whether there is a way for humans to reconcile (调和) with plastics,” said Zhou.
Liu said that plastic waste can be used to make clothes and ornaments (装饰品). “Re-use of plastics will be a future trend,” he said.
Cable ties are a useful and common material for fastening. Many people will buy a large bundle of them but only use a few pieces. The rest of cable ties could be re-used as a decoration in handicrafts.
“This exhibition calls for everyone to re-think their wasteful lifestyle full of single-use plastics and make changes,” said Cao.
1. What was the purpose of Dear Pretty Rubbish?| A．To call on people to reduce waste. |
| B．To remind people to live healthily. |
| C．To encourage people to use more plastic. |
| D．To teach people how to recycle different kinds of garbage. |
| A．dry up | B．break down |
| C．be discovered | D．be broken |
| A．Communication is important for everyone. |
| B．A community’s garbage is full of hidden treasures. |
| C．Creativity can change your life. |
| D．Plastics could be reused to reduce pollution. |
| A．An art exhibition held in Beijing. |
| B．The rise of a new lifestyle. |
| C．The many uses of plastics. |
| D．An introduction of two artists and their works. |
