1 . Starman, the dummy(仿真人) riding a cherry-red Tesla Roadster(特斯拉敞篷车) through space, has made his closest approach ever to Mars. The electric roadster and its passenger were attached to the top of a Falcon Heavy rocket during the SpaceX rocket’s first test launch on 6 February 2018.
Two years later, the Falcon Heavy rocket and the vehicle at its tip are making their second trip around the Sun. Mr. McDowell, a Harvard astrophysicist, found that Starman passed 7.4 million kilometers from Mars at 06:25 GMT 7 October, 2020.
The closest recent approach between the Earth and Mars was 56 million kilometers in 2003, though the planets are often hundreds of millions of miles apart depending on where they are in their orbits. No one can see the Falcon Heavy rocket at its current distance, but orbits over periods of a few years are fairly straightforward to predict, and Mr. McDowell used data about how the rocket was moving when it left the Earth’s gravity behind to locate its recent movements exactly.
Last time Starman circled the Sun, McDowell said, it crossed Mars’ orbit while the Red Planet was quite far away. But this time the crossing lined up with a fairly close approach, though still not close enough to feel a strong tug from Mars.
At this point in time, if you were able to go look at the Roadster, it would probably look pretty different. The strong solar radiation environment between the planets would probably have destroyed all the exposed organic materials.
Without the Earth’s atmospheric and magnetic(磁场的) protection, even the plastics and carbon-fibre materials would start to break up. Over the course of decades or centuries, the car will end up with its aluminium(铝) frame and hard glass parts----that’s assuming that none of them get destroyed in impacts with passing space rocks.
1. What can we infer from the first two paragraphs?| A．Starman is now circling around the Earth in its orbit. |
| B．Starman has set out on its second trip around the Sun. |
| C．Starman has traveled 7.4 million kilometers after launch. |
| D．Starman still has a long way to go before getting to Mars. |
| A．By keeping Starman under visual observation. |
| B．By predicting its future orbit around the earth. |
| C．By seeking professional help from SpaceX. |
| D．By analyzing data about the rocket’s movement. |
| A．pull | B．drive | C．resistance | D．pressure |
| A．It is circling around Mars and will finally crash onto it. |
| B．It will finish its mission and return to SpaceX on earth. |
| C．Starman is likely reduced to at most its frame and glass. |
| D．SpaceX will try to recover it during its next space mission. |
2 . For children, communication with older adults is important when visits with grandparents are called off because of the pandemic(流行病).
Even before COVID-19 sent older adults into hiding, grandparents and great-grandparents could often seem like strangers to kids. Contact might include gifts of toys meant for someone a little younger, forced piano performances by parents, and really bad jokes. So, coming up with what to say to those out -of-touch people through a camera can be hard. It can be a lot of pressure for kids.
Yet keeping up with older relatives has mental and physical health benefits for everyone. According to studies, older adults who participate in programming between generations show more happiness, better self-care. And a strong relationship between grandparents and grandchildren can lessen depressive tendencies(抑郁倾向) in both adults and kids.
Having an actual relationship with a grandparent can also help children develop qualities that make all-around great citizens. “Children are born to be me, me, me,” says Tina-Anne Praas of SKIP, an Ontario-based organization. “But seeing a person who has experienced life stages pulls them away from that thinking. They can gain some worldly points of view.”
Being close with a grandparent can also help children develop communication skills, especially when they’re able to learn about and compare their experiences with a grandparent’s. And it doesn’t carry the pressure of talking to a parent.
Tina-Anne Praas adds that students who were worried about life after graduation eagerly listen to older adults sharing their own experiences from the same time of life, 50-plus years ago. One student says, “My interactions(互动) with my grandparents encouraged me to become a physician.”
1. What causes much stress for kids?| A．Playing the piano in public. |
| B．Communicating with grandparents online. |
| C．Buying gifts for other younger children. |
| D．Being out of touch with parents for a long time. |
| A．Seeing an experienced person. |
| B．Kids’ own ideas about the world. |
| C．Children’s care of themselves only. |
| D．Keeping contact with grandparents. |
| A．Supportive. | B．Doubtful. |
| C．Uncertain. | D．Worried. |
| A．listening to stories online |
| B．watching what they do daily |
| C．forming new ideas about themselves |
| D．communicating and interacting with them |
3 . Writer Walter Benjamin argued that what makes certain works of art great is that they contain a mysterious “aura（气息）”. This mystery is part of what makes the works wonderful. However, since the late 1990s, with the spread of high-quality digital photography, there have been many discoveries about famous paintings.
Hieronymus Bosch has been at the centre of art-historical controversy（争论）this year. After an exhibition at the Noordbrabants Museum in the artist’s hometown, a new exhibition at the Prado in Madrid is on the way. The Noordbrabants displayed 17 existing Bosch paintings, while the Prado now exhibits 24. The difference is the result of digital discoveries, first accepted at the Noordbrabants show.
Artists did not regularly sign their works until the 19th century, and attribution（归属）based on a work’s style leaves room for error. Since artists always worked in studios or workshops, students would develop a style very similar to that of their master. Then again, later artists learned by copying past masters, sometimes so well that it’s hard to tell the difference. However, attribution can change, especially when new technology comes to light.
In the case of the Bosch discoveries, some researchers found evidence that led them to downgrade（降级）the attribution of certain works. Extracting the Stone of Madness, which was originally going to be lent by the Prado to the Noordbrabants, is listed as “by Bosch”, and considered to have been painted between 1501 and 1505. But the researchers informed the Prado that they would be listing the painting as “by the workshop or a follower of Bosch”, and dating it 1500-1520 （Bosch died in 1516）. The museum’s director Miguel Falomir said, “It is unacceptable to request a painting as a Bosch and then show it as something different.”
One of the beautiful things about art history is that it can never be an exact science. Digital art-historical discoveries have led to controversy rather than resolutions（问题解决）. The evidence is there, but it’s up to us how we explain it.
1. Why are some artworks great according to Walter Benjamin?| A．They didn’t survive in history. | B．Their styles are kind of mystery. |
| C．They leave room for imagination. | D．Their creators were not well-known. |
| A．It owns the paintings by Bosch. |
| B．It was convinced by the researchers. |
| C．It broke the agreement with the Prado. |
| D．It borrowed all Bosch paintings from the Prado. |
| A．Find out the signature hidden in the picture. |
| B．Consult the museum that has been displaying it. |
| C．Interview the followers of the master who did it. |
| D．Analyze its style and the year when it was created. |
| A．Digital discoveries explain art in a better way. |
| B．Museums have a fierce debate on Bosch paintings. |
| C．Hieronymus Bosch paintings become controversial. |
| D．Digital discoveries destroy the beauty of art history. |
4 . The Google Brain team has been working on computing systems called “neural networks”—systems that were designed based on how neurons work in the human brain.
This time, they gave a mission to three of the neural networks, which they named Alice, Bob and Eve. Each of the networks had its own job—Alice sent messages to Bob, Eve tried to “eavesdrop”(偷听) and find out the messages, and Alice and Bob had to figure out a way to hide the messages from Eve. All the help that Alice and Bob got from the researchers before the mission began was made up of a set of numbers, which Eve didn’t have access to.
At first, Alice was not very good at sending secret messages. But slowly it worked on a way to encrypt(加密) them—putting information into a special code so that others could not understand it if they got the information—using he numbers given by researchers. And after practice, Bob also came to be able to decrypt(解密) Alice’s messages. Without the numbers or keys, Eve failed to understand Alice’s “speech” most of the time.
This test is considered a big step in the development of computers’ learning skills. “Computing with neural networks on this scale has only become possible in the last few years, so we truly are at the beginning of what’s possible, ” Joe Sturonas of US encryption company PKWARE told New Scientist magazine.
Unfortunately, the test happened only one week after UK physicist Stephen Hawking, While speaking at Cambridge University, warned how AI(artificial intelligence)could develop a will of its own. This could be “either the best or the worst thing ever to happen to human being”, he said.
But just as Sturonas pointed out, no matter what the possibilities of computers are in the future, they are just starting out. We still have plenty of time to work out a solution before they get anywhere near becoming a threat to humanity.
1. For what purpose was the test conducted?| A．To study how neurons work in the human brain. |
| B．To study how computing systems work and learn. |
| C．To find out a more effective way to keep secrets. |
| D．To find out a more powerful way to break the codes. |
| A．encrypting—messages—code—messages—decrypting |
| B．messages—encrypting—code—decrypting—messages |
| C．code—messages—encrypt—decrypting—messages |
| D．messages—code—decrypting—encrypting—messages |
| A．AI must be a blessing. | B．AI should be forbidden. |
| C．AI is sure to be a failure. | D．AI is a double-edged sword. |
| A．Hopeful. | B．Doubtful. |
| C．Puzzled. | D．Panicked. |
5 . This is the moment a cleaner at a British university burst into tears after students raised $ 2,063 to send him to Jamaica on vacation to see family.
Herman Gordon, who has worked at Bristol University for more than a decade, is described as “one of the most loved” members of its cleaning staff. He is so well liked that a group of students raised money to give him a holiday. A video shows a student hands an envelope of cash to the surprised Gordan with tears rolling down his cheeks. He wipes away tears with a cleaning cloth and hugs the student who gave it to him. Gordan said: “I want to thank every one of you and God bless every one of you.”
The group of students started the fundraising because they liked Gordon so much. A post said: “The Jamaican cleaner in the biomedical library is the jolliest man I have ever met; he makes me smile even when I’m in the deepest depths of sorrow, if you want a reason to smile, go talk to him for a minute or two.”
Anyone who has been to the biomedical library knows who Herman the cleaner is. Simply put, Herman is the epitome（典范）of happiness, “All year round, this man works hours on end to provide us with a clean working space in which to study. But most importantly, his everlasting positive attitude has managed to turn many students’ dark days into positive ones filled with joy,” said a student. Whether you’re just feeling generally down or stressed out due to exams, Herman is always there to encourage you.
This legend proves that happiness is not about what you own, what job you have or how much money you’ve got, but about appreciating what you currently have in life even if it’s small.
1. What was Herman Gordon’ reaction when receiving the fundraising?| A．grateful. | B．stressed. | C．delighted. | D．astonished. |
| A．most miserable. | B．most cheerful. | C．most generous. | D．most glorious. |
| A．Building confidence. | B．Developing exam skills. |
| C．Learning self-control. | D．Gaining biomedical knowledge. |
| A．A biomedical library cleaner. . | B．A group of warm-hearted students. |
| C．Money-raising to send a cleaner on vacation. | D．The most loved cleaning staff. |
6 . You are given many opportunities in life to choose to be a victim or creator. When you choose to be a victim, the world is a cold and difficult place.“They” did things to you which caused all of your pain and suffering.“They” are wrong and bad, and life is terrible as long as “they” are around.Or you may blame yourself for all your problems, thus internalizing(内化)your victimization.The truth is, your life is likely to stay that way as long as you feel a need to blame yourself or others.
Those who choose to be creators look at life quite differently.They know there are individuals who might like to control their lives, but they don't let this get in the way.They know they have their weaknesses, yet they don't blame themselves when they fail.Whatever happens, they have choice in the matter.They believe their dance with each sacred(神圣的)moment of life is a gift and that storms are a natural part of life which can bring the rain needed for emotional and spiritual growth.
Victims and creators live in the same physical world and deal with many of the same physical realities, yet their experience of life is worlds apart.Victims relish(沉溺)in anger, guilt, and other emotions that cause others--and even themselves---to feel like victims, too.Creators consciously choose love, inspiration, and other qualities which inspire not only themselves, but al1around them.Both victims and creators always have choice to determine the direction of their lives.
In reality, all of us play the victim or the creator at various points in our lives.One person, on losing a job or a special relationship, may feel as if it is the end of the world and sink into terrible suffering for months, years, or even a lifetime.Another with the same experience may choose to first experience the grief, then accept the loss and soon move on to be a powerful creative force in his life.
In every moment and every circumstance, you can choose to have fuller, richer life by setting a clear intention to transform the victim within, and by inviting into your life the powerful creator that you are.
1. What does the word “they” in Paragraph 1 probably refer to?| A．People and things around you. | B．Opportunities and problems. |
| C．Creators and their choices. | D．Victims and their sufferings. |
| A．seem willing to experience failures in life | B．possess the ability to predict future life |
| C．handle ups and downs of life wisely | D．have potential to create something new |
| A．To define victims and creators. |
| B．To evaluate victims against creators. |
| C．To explain the relationship between victims and creators. |
| D．To suggest the transformation from victims to creators. |
| A．strong attachment to sufferings in life pulls people into victims. |
| B．people need family support to deal with challengers in life. |
| C．it takes creators quite a long time to get rid of their pains. |
| D．one's experiences determine his attitude toward life. |
7 . Elizabeth Spelke, a cognitive (认知的) psychologist at Harvard, has spent her career testing the world's most complex learning system-the mind of a baby. Babies might seem like no match for artificial intelligence (AI). They are terrible at labeling images, hopeless at mining text, and awful at video games. Then again, babies can do things beyond the reach of any AI. By just a few months old, they’ve begun to grasp the foundations of language, such as grammar. They’ve started to understand how to adapt to unfamiliar situations.
Yet even experts like Spelke don’t understand precisely how babies — or adults, for that matter — learn. That gap points to a puzzle at the heart of modern artificial intelligence: We're not sure what to aim for.
Consider one of the most impressive examples of AI, Alpha Zero, a programme that plays board games with superhuman skill. After playing thousands of games against itself at a super speed, and learning from winning positions, Alpha Zero independently discovered several famous chess strategies and even invented new ones. It certainly seems like a machine eclipsing human cognitive abilities. But Alpha Zero needs to play millions more games than a person during practice to learn a game. Most importantly, it cannot take what it has learned from the game and apply it to another area.
To some AI experts, that calls for a new approach. In a November research paper, Francois Chollet, a well-known AI engineer, argued that it’s misguided to measure machine intelligence just according to its skills at specific tasks. “Humans don’t start out with skills; they start out with a broad ability to acquire new skills,” he says. “What a strong human chess player is demonstrating is not only the ability to play chess, but the potential to fulfill any task of a similar difficulty.” Chollet posed a set of problems, each of which requires an AI programme to arrange colored squares on a grid (格栅) based on just a few prior examples. It’s not hard for a person. But modern machine-learning programmes-trained on huge amounts of data — cannot learn from so few examples.
Josh Tenenbaum, a professor in MIT's Center for Brains, Minds & Machines, works closely with Spelke and uses insights from cognitive science as inspiration for his programmes. He says much of modern AI misses the bigger picture, comparing it to a cartoon about a two-dimensional world populated by simple geometrical (几何形的) people. AI programmes will need to learn in new ways — for example, by drawing causal inferences rather than simply finding patterns. “At some point — you know, if you’re intelligent — you realize maybe there's something else out there,” he says.
1. Compared to an advanced AI programme, a baby might be better at _______________.| A．labeling images | B．identifying locations |
| C．playing games | D．making adjustments |
| A．Stimulating. | B．Measuring. | C．Beating. | D．Limiting. |
| A．AI is good at finding similar patterns |
| B．AI should gain abilities with less training |
| C．AI lacks the ability of generalizing a skill |
| D．AI will match humans in cognitive ability |
| A．What is exactly intelligence? |
| B．Why is modern AI advanced? |
| C．Where is human intelligence going? |
| D．How do humans tackle the challenge of AI? |
8 . China is one of the first countries to breed a medical culture. In comparison with Western methods, traditional Chinese medicine (TCM) adopts a vastly different approach. For thousands of years, Chinese people have accumulated rich experience in fighting all sorts of diseases, therefore forming a unique medical theory under the guidance of ancient Chinese philosophies (哲学).
The core behind TCM is that the human body's life is the consequence (结果) of the balance between Yin and Yang. Yang functions to safeguard us against outer harm, and Yin is the inner base to store and provide energy. When the balance between the two aspects is disturbed, people fall ill.
One of the traditional techniques of TCM, acupuncture (针刺疗法) means insertion of needles into superficial (表面的) structures of the body—usually at acupoints (穴位)—to restore the Yin Yang balance. It is often accompanied by moxibustion (艾灸疗法), which involves burning mugwort on or near the skin at an acupoint.
The first known text that clearly talks about something like acupuncture and moxibustion as it is practiced today is The Yellow Emperor's Inner Canon. It is the earliest and most important written work of TCM and is considered the fundamental and most representative medical text in China.
Acupuncture and moxibustion have aroused the interest of international medical science circles. And TCM is gradually gaining worldwide recognition. The WHO issued a document in 2002 that appealed to more than 180 countries to adopt TCM as an alternative in their medical policies. In 2010, acupuncture and moxibustion of traditional Chinese medicine were added to the Representative List of the Intangible Cultural Heritage of Humanity by the UNESCO. Presently, TCM has been back in the news for its effectiveness in improving the cure rate of the COVID-19 since its outbreak in January 2020.
1. What is the key feature of TCM?| A．It adopts different medical approaches. | B．It's based on ancient Chinese philosophies. |
| C．It helps to restore body's self-balance. | D．It's gained experience through rich practice. |
| A．It distinguishes acupuncture from moxibustion. |
| B．It's a foundation of world medical research. |
| C．it stresses the importance of using acupoints. |
| D．It greatly contributes to the development of TCM. |
| A．To review the development of TCM. | B．To introduce TCM to the world. |
| C．To tell TCM and Western medicine apart. | D．To argue for TCM in fighting COVID-19. |
| A．How TCM helps in the current situation. | B．Why TCM is gaining popularity. |
| C．Why TCM gets recognition from WHO. | D．How other countries adopt TCM. |
9 . For many of us, good friends are the next closest thing to family. According to a new study, good friends are actually the next closest thing to family from the aspect of genes (基因).
U.S. researchers have found that we are more genetically similar to our friends than to any stranger. The study suggested that genes may affect how we choose our friends, reports the BBC.
The study looked at the gene information of nearly 2,000 people, who were chosen from a small U.S. town as part of a larger heart study. Nearly half a million single-letter markers from the genome (基因组) were studied, showing that friends share about 0.1 percent more DNA, on average, than strangers do. While that might not sound like much, it’s as if they shared a great-great-great-grandparent in common.
Except for providing DNA information, participants (参与者) in the study were also asked who their closest friends were. Because all of the participants were chosen from such a small community, it made this group particularly suitable for such studies.
However, the fact that all of the study was based on such a small community has also led to argument. Friendships in small communities might be more likely to be genetically related, because such communities have fewer types of genes in general.
“I wonder whether the methods used in the study can fully explain the causes known to drive friendships,” said Oxford’s Dr. Rory Bowden.
There was one interesting finding from the study. Some of the genes that friends are most likely to have in common are about smell. “You may really love the smell of coffee. And you’re drawn to a place where other people have been drawn because they love the smell of coffee too,” Fowler explained. “And so that might be the opportunity space for you to make friends. You’re all there together because you love coffee and you make friends because you all love coffee.”
1. What did the participants do in the study?| A．They named their closest friends. |
| B．They made friends from a small community. |
| C．They changed the methods of making friends. |
| D．They provided DNA information of their friends. |
| A．Coffee helps strangers come together. |
| B．Good friends will love the smell of coffee. |
| C．Genes about smell among friends are similar. |
| D．Smell may influence people in making friends. |
| A．A study on the relationship between making friends and genes. |
| B．The methods of carrying out different studies. |
| C．A way to choose participants in a study. |
| D．The similar genes between good friends. |
10 . Captured(捕获的) carbon dioxide(CO2) could be used to extract(提炼) useful metals(金属) from recycled technology such as smartphone batteries rather than just being buried underground. The technique could help make it more economical to capture the greenhouse gas before it enters the atmosphere.
“If you also extract metals by filling CO2, you add value to a process that is known to be costly,” says Julien Leclaire at the University of Lyon, France.
CO2 is the main cause of modern climate change, so many people have attempted to develop technologies to capture it when it comes from power plants and other major sources. The gas can then be stored underground. The problem is that such carbon capture and storage (CCS) is expensive. “No one wants to pay the price for it,” says Leclaire.
To make CCS more appealing, Leclaire’s team has found a use for the gas.
His team collected CO2 from a car gas, cooled it, then pumped it into a mix of chemicals. The CO2 combined with the mix to make many molecules(分子) of various shapes and sizes.
The team found that this process could sort out mixtures of metals, because one metal would dissolve(溶解) in the liquid while another would form a solid. In a series of experiments, they successfully separated three kinds of metals-all of which are used in batteries, smartphones and computers.
If the process can be widely used, it could be a more environmentally friendly way to recycle batteries and other electrical equipment, says Leclaire. This is normally done using highly reactive chemicals, which are potentially polluting. Replacing them with CO2 should lead to a much lower environmental pollution, he says.
Other researchers and companies are trying to change captured CO2 into useful materials like plastics, which are normally produced from petrol, but this is chemically difficult. Leclaire says his approach is more in line with how CO2 behaves naturally. “Instead of copying what we know how to do better and cheaper with oil, let’s find things you can only do with CO2,” he says.
1. What can we learn from the first paragraph?| A．Extracting useful metals from recycled technology is widely used now. |
| B．Useful metals in the atmosphere are used to make smartphone batteries. |
| C．Abandoned smartphone batteries may have been buried underground before. |
| D．The greenhouse gas CO2 could be cleaned up after entering the atmosphere. |
| A．CO2 is the main cause of modern climate change. |
| B．CO2 can be used to recycle many resources. |
| C．Captured CO2 can be changed to useful gas. |
| D．CO2 is harmful to people’s health. |
| A．It could end the use of plastics. |
| B．It could reduce environmental pollution. |
| C．It could make more metals available to humans. |
| D．It could help reduce the cost of battery production. |
| A．The Ways to Make Smartphone Batteries |
| B．The Reason for Capturing Greenhouse Gas |
| C．Collecting CO? Is Starting to Make New Progress |
| D．Captured CO2 Could Be Used to Help Recycle Useful Metals |
