1 . On a break from his studies in the MIT Media Lab,Anirudh Sharma traveled home to Mumbai, India. While there, he noticed that throughout the day his T-shirts were gradually gathering something that looked like dirt."I realized this was air pollution，or sooty（像煤一样）particulate matter (PM)，made of black particles released from exhaust（尾气）of vehicles，" Sharma says. "This is a major health issue."Soot consists of tiny black particles, about 2.5 micrometers or smaller, made carbon produced by incomplete burning of fossil fuels.
Back at MIT,Sharma set out to help solve this air-pollution issue. After years of research and development, Sharma’s startup Graviky Labs has developed technology that attaches to exhaust systems of diesel generators（柴油发电机）to collect particulate matter.Scientists at Graviky then turn it into ink, called Air-Ink, for artists around the world. So far, the startup has collected I.6 billion micrograms of particulate matter.More than 200 gallons of Air-Ink have been harvested for a growing community of more than 1,000 artists, from Bangalore to Boston, Shanghai,and London.
Posted all over Graviky Lab's Facebook page today are photos of art made from the Air-Ink and pant, including street wall paintings, body art and clothing prints.At first, there was still no specific application for the ink. Then the startup decided to find new ways to further spread its mission.It chose to do so through art."Art helps us raise awareness about where the ink and paint comes from. Air pollution knows no borders. Our ink sends a message that pollution is one of the resources in our world that's the hardest to collect and use.But it can be done,"Sharma says.
1. What struck Sharma most during his break in India?| A．Dirt on his T-shirts. | B．Health issue of the locals. |
| C．Coal industry in Mumbai. | D．Incomplete burning of fossil fuels. |
| A．a cleaner of outdoor air | B．a product made from PM |
| C．a newly-founded company | D．a printing technology |
| A．It improves artistic effect. | B．It makes pollution acceptable. |
| C．It helps Sharma make a profit. | D．It raises environmental awareness. |
| A．Arts know no borders | B．Waste has no price |
| C．Less pollution, more art | D．Creative thinking, effective painting |
2 . Can you imagine a world without music? Studies show that public schools across the country are cutting back on music classes to save money. Worse, some schools have never had music classes to begin with. But without them, students’ academic growth and emotional health could suffer. In fact, music classes are necessary for all students in schools.
Recent studies by Brown University have shown that students who received music education classes were better in math and reading skills than those without music classes. Another study by The College Board found that students taking music and art classes got higher points. Students’ academic success seems to depend on their taking part in music education.
Music programs in public schools also help to add to a student’s sense of pride and selfconfidence. Teens today have too many learning tasks. Besides, they have family problems, selfconfidence problems, relationship troubles, and choices about drugs and alcohol. All of these can stop academic success, but music education can help. A study by The Texas Commission on Drug and Alcohol Abuse found that students who took part in school music programs were less likely to turn to drugs. Music programs encourage students to work together to produce an excellent performance.
Music crosses language, class, cultural and political boundaries (界限). Music allows students from different countries to connect. For example, at a school talent show, a new Japanese student played a piano duet (二重奏) with an American classmate. Although they could not communicate verbally (口头上) , they were able to read the music in order to play the duet. Two students from different cultures worked as a team with selfconfidence and common purpose through music.
The gift of music is priceless. We need to be sure to have necessary music classes for all students. The world is losing its music, and putting music into schools is the first step to get it back.
1. The two studies seem to show that ________.| A．students with great success attended music lessons |
| B．not all students took part in music lessons |
| C．music plays an important role in students’ success |
| D．students having music classes are better in all lessons |
| A．Japan has a good international relationship with America |
| B．different cultures have different styles of music |
| C．music makes crosscountry communication possible |
| D．Japanese and American students are good at playing the piano |
| A．Music — a bridge to understanding |
| B．How to get music back |
| C．The importance of listening to music |
| D．Music education in schools |
3 . Some termite (白蚁) species have figured out how to enjoy the shelter of the huge complex nests that the insects build without contributing to their construction. They avoid the full anger of their builder hosts by being extremely easy-going.
Animals that live in the nests of another species without affecting them are known as inquilines. Inquiline termites are unique among termites in being unable to make their own nests. Instead, they live in the hallways built by another termite, Constrictotermes cyphergaster. Until now, it has been unclear how the two parties kept peaceful in such tight quarters because termites are typically very aggressive towards outsiders.
Helder Hugo at the University of Konstanz in Germany and his colleagues collected Constrictotermes cyphergaster’s nests in the Brazilian Cerrado and brought them into the laboratory. They then placed host and tenant (房客) termites in either open or narrow areas and used video to track and record the ways in which the two species reacted to each other.
Right from the start, the inquiline’ termites moved around less than their hosts and interacted little with them, even in the much narrower area. “Many times,” says Hugo, “when two unrelated groups are put together in a limited space—such as an experimental area—the outcome is conflict with losses from both sides.” But that didn’t happen here. Despite attacks from host termites, the tenant termites were obedient. Hosts would bite or attack the inquilines with strong chemicals, but their targets never responded in the same way, choosing to flee. Some ignored the hosts completely.
“We did not expect that they would never fight back,” says Hugo, noting that the inquilines are capable of protecting their own place with mouths. “By preventing conflict going worse, inquiline termites may considerably improve their chances of living together with their host termites peacefully.”
“Passiveness does not necessarily lead to defeat, but can be a very useful strategy, saving energy and resources,” she adds. “Nature may not always be red in tooth and claw, and aggression is not any more successful a strategy than ‘cowardice’ (儒弱).”
1. What is the feature of the inquiline termites?| A．They live in another termite species’ nests. |
| B．They are aggressive towards outsiders. |
| C．They like to build their own nests. |
| D．They are communicative tenants. |
| A．The differences between the two species. |
| B．The findings of the observation. |
| C．The living habits of termites. |
| D．The process of the research. |
| A．Aggressive. | B．Unacceptable. | C．Effective. | D．Dangerous. |
| A．The Characteristics of Termites |
| B．Passiveness Doesn’t Necessarily Lead to Defeat |
| C．The Relationship Between Host and Tenant Termites |
| D．Termites Use Cowardice to Avoid Their Hosts’ Anger |
4 . Football is my favorite sport. I loved to watch it, but I had never played in a football game before I went to college. I lacked self－confidence and I doubted if I could do well in a team, which was why I hardly did sports together with others. I just loved practicing playing football in the backyard of my house.
About one month after I went to college, one day some of my classmates said they'd play a football game with some players of another class. I really looked forward to it but never thought I'd join them to play. That day finally came and I went to watch with my classmates. However, just about ten minutes after the game started, one member of our football team got injured and could no longer play. The other members looked worried. Then one of them came to me and asked, “Can you play?” At first, I shook my head, but then I nodded. “Great! Come and play,” he said. I followed him, having no idea at all what to do. To my joy, he asked me to play in defense (防守). Defense was my favorite because I found it more fun and less complicated (复杂的). Then the game began again. There weren't a lot of big kids on the offensive line (攻击线) of the other team and I suddenly gained some self－confidence. About five minutes later, the ball was kicked toward the guard. I thought it was a good opportunity for me. I quickly ran past the guard and got the ball. When the guard came to the offensive line, I kicked the ball. I scored and all my classmates cheered. You may not believe it, but I scored twice that time. The final score was 6—2 and we won. My teammates thought that I did very well and none of them believed I hadn't played in a game before.
That game really changed me. I am a really confident person now and often play football games with my teammates.
1. Why didn't the author play sports with others before?| A．He wasn't interested in sports. |
| B．He wasn't popular with others. |
| C．He couldn't afford time for sports. |
| D．He wasn't confident about his ability. |
| A．excited | B．boring |
| C．anxious | D．angry |
| A．got nervous about watching football games |
| B．decided to become a full－time football player |
| C．was considered the best football player at school |
| D．fell in love with joining others in playing football |
| A．My first football game. |
| B．My most unforgettable experience. |
| C．My way of finding self－confidence. |
| D．My way of scoring at football games. |
5 . Modern medicine’s ability to keep us alive makes it tempting to think human evolution may have stopped. But if we look at the rate of our DNA’s evolution, we can see that human evolution hasn’t stopped – it may even be happening faster than before.
Evolution is a gradual change to the DNA of a species over many generations. It can occur by natural selection, when certain traits created by genetic changes help an organism survive or reproduce. Such genes are thus more likely to be passed on to the next generation, so they increase in frequency in a population. Gradually, these changes and their associated traits become more common among the whole group.
By looking at global studies of our DNA, we can see evidence that natural selection has recently made changes and continues to do so. Though modern healthcare disrupts a key driving force of evolution by keeping some people alive longer, in countries without access to good healthcare, populations are continuing to evolve. Survivors of infectious disease outbreaks drive natural selection by giving their genetic resistance to offspring. Our DNA shows evidence for recent selection for resistance of killer diseases like Lassa fever and malaria. Selection in response to malaria remains in regions where the disease remains common.
Humans are also adapting to their environment. Gene change allowing humans to live at high altitudes have become more common in populations in Tibet, Ethiopia, and the Andes. The spread of genetic changes in Tibet is possibly the fastest evolutionary change in humans, occurring over the past 3,000 years. This rapid increase in frequency of a mutated gene that increases blood oxygen content gives locals a survival advantage in higher altitudes, resulting in more surviving children.
Diet is another source for adaptations. Studies show that natural selection favoring a change allowing adults to produce lactase – the enzyme (酶) that breaks down milk sugars – is why some groups of people can digest milk. Over 80 per cent of northwest Europeans can, but in parts of East Asia, where milk is much less commonly drunk, an inability to digest lactose is the norm. Like high altitude adaptation, selection to digest milk has evolved more than once in humans and may be the strongest kind of recent selection.
Yet, despite these changes, natural selection only affects about 8 per cent of our genome. But scientists can’t explain why some genes are evolving much faster than others. We measure the speed of gene evolution by comparing human DNA with that of other species. One fast-evolving gene is human accelerated region 1 (HAR1), which is needed during brain development. A random section of human DNA is on average more than 98 per cent identical to the chimp comparator, but HAR1 is so fast evolving that it’s only around 85 per cent similar. Though scientists can see these changes are happening – and how quickly – we still don’t fully understand why fast evolution happens to some genes but not others.
1. Which of the following statements may the author agree with?| A．Evolution occurs among several people overnight. |
| B．Genes may change and some are beneficial to people’s lives. |
| C．Evolution is done when the whole population possesses a certain gene. |
| D．The changed genes leading to higher survival rates are chosen deliberately. |
| A．explains | B．causes | C．upsets | D．heals |
| A．some people can resist infectious diseases like malaria |
| B．children in Tibet tolerate living environments with thin air |
| C．northwestern Europeans digest lactose better than East Asians |
| D．the human gene HAR1 resembles that of a chimp to a lesser extent |
| A．What Is Natural Selection? |
| B．Are Humans Still Evolving? |
| C．Why Will Certain Genes Evolve? |
| D．How Do Mutated Genes Function? |
6 . As computers become all the more popular in China, Chinese people are increasingly relying on computer keyboards to input Chinese characters. But if they use the computer too much, they may end up forgetting the exact strokes（笔画）of each Chinese character when writing on paper. Experts suggest people, especially students, write by hand more.
Do you write by hand more or type more? In Beijing, students start using a computer as early as primary school(小学). And computer dependence is more wide-spread among university students. Almost all their assignments and essays are typed on a computer.
All the students interviewed say they usually use a computer.
It's faster and easier to correct if using a computer. And that's why computers are being applied more and more often to modern education. But when people are taking stock in computers increasingly, problems appear.
"When I'm writing with a pen, I find I often can't remember how to write a character, though I feel I’m familiar with it."
"I'm not in the mood(状态) to write when faced with a pen and paper."
Many students don't feel this is something to worry about. Now that it's more convenient and efficient to write on a computer, why bother to handwrite?
Many educators think differently. Shi Liwei , the headmaster of a famous primary school in the capital said "Chinese characters enjoy both practical and aesthetic(审美的) value. But those characters typed with computer keyboards only maintain their practical value. All the artistic beauty of the characters is lost. And handwriting contains the writer's emotion. Through one's handwriting, people can get to know one's thinking and personality. Beautiful writing will give people a better first impression of them"
To encourage students to handwrite more, many primary schools in Beijing have made writing classes compulsory(必修的)and in universities, some professors are asking students to hand in their homework and essays written by hand.
1. Which of the following can best serve as the title of the passage?| A．The Importance of Handwriting and Typing. |
| B．To Type or To Hand Write |
| C．Writing By Computer Will Replace Writing By Hand |
| D．Practical and Aesthetic Value of Chinese Characters. |
| A．they are usually asked to e-mail their Homework and Essays |
| B．they can correct the mistakes they make quickly and conveniently |
| C．they find it not easy to remember how to write a character |
| D．computers have become a trend and fashion in China. |
| A．Handwriting contains the writer's emotion. |
| B．The writer’s thinking and personality are shown in his or her handwriting, |
| C．Handwriting can impress people well and build one’s self-confidence |
| D．Chinese characters enjoy both practical and aesthetic value. |
| A．getting bored with | B．getting dependent on |
| C．becoming crazy about | D．getting curious about |
7 . Gretchen Altman is smiling, leaning back casually, a cup of coffee in hand — Hills Bros. Coffee, to be precise. It looks like a casual shot, but if you hit like, leave a comment, and tag a friend, you can get three different cups of coffee, for free.
Altman is part of a growing trend of "micro-influencers". She has a small following — around 6,000 on Instagram(社交平台). Her going rate is $300 to $800 to promote something. She does some posts in exchange for free goods, as long as it’s stuff she believes in.
As a micro-influencer she has a much closer relationship with her followers than a big social media star. "I’m just living a normal life and people relate to that," she says. "They just feel like I’m a friend of theirs."
But it worries consumer rights groups. Several recent studies have found that young audiences are largely unable to understand when something is sponsored content.
In some cases, it’s clear. When a big star takes to a social media to advertise Coca-Cola, for example, the assumption is that he or she’s probably getting paid to do so. And the posts are clearly labeled as ads, with the caption "advertisement" or "sponsored content".
But what happens when an everyday person with just a couple thousand followers takes to social media to extol(颂扬) the virtues of a product? The motivations are not so clear cut. The problem with these social media posts is that you don’t know whether it’s an ad or not.
Altman is diligent about using those hashtags(标签). She loves what she does and sees it as a business, but she doesn’t necessarily want to be a social media celebrity.
"With social media being so integrated into our everyday lives, we have this unique opportunity that I don’t think anyone has ever had before where we can each be our own brand," Altman says.
1. What does a micro-influencer do according to the passage?| A．Give enough likes. | B．Post to promote sales. |
| C．Recommend some comments. | D．Design advertisements. |
| A．Sponsored ads content. |
| B．Ads with caption on posts. |
| C．The unclear motivations of the posts. |
| D．The increasingly growing number of audiences. |
| A．Annoyed. | B．Delighted. | C．Ambitious. | D．Depressed. |
| A．Instagram Advertising: Do You Know It, When You See It |
| B．To be a Micro-influencer or to be a Big Star |
| C．We Can Each Be Our Own Top Brand |
| D．Hills Bros. Coffee, Your Coffee |
8 . Every year, thousands of teenagers participate in programs at their local art museums. But do any of them remember their time at museum events later in life? A new report suggests that the answer is yes – and finds that alumni (毕业生) of arts-based museum programs credit them with changing the course of their lives, even years after the experience.
The Whitney Museum of American Art, the Walker Art Center and the Museum of Contemporary Art, Los Angeles recently asked researchers to conduct a study to find out how effective their long-standing teen art programs really are. They involved over 300 former participants of four programs for teens that have been in existence since the 1990s. Alumni, whose current ages range from 18 to 36, were invited to find out how they viewed their participation years after the fact.
Among the alumni surveyed, 75 percent of alumni rated the teen program experience as the most favorable influence on their own lives, beating family, school and their neighborhoods. Nearly 55 percent thought that it was one of the most important experiences they’d ever had, regardless of age. And two-thirds said that they were often in situations where their experience in museums affected their actions or thoughts.
It turns out that participating in art programs also helps keep teens enthusiastic about arts even after they reach adulthood: 96 percent of participants had visited an art museum within the last two years, and 68 percent had visited an art museum five or more times within the last two years. Thirty-two percent of program alumni work in the arts as adults.
Though the study is the first of its kind to explore the influence of teen-specific art programs in museums, it reflects other research on the important benefits of engaging with the arts. A decade of surveys by the National Endowment for the Arts found that childhood experience with the arts is significantly associated with their income and educational attainment as adults. Other studies have linked arts education to everything from lower drop-out rates to improvement in critical (批判性的)thinking skills.
1. What does the underlined phrase “the experience” in Paragraph 1 refer to?| A．Joining in childhood art programs. |
| B．Shifting the course of children’s life. |
| C．Memorizing the time at museum events. |
| D．Conducting arts-based museum programs. |
| A．The aim of the study. |
| B．The result of the study. |
| C．The method of the study. |
| D．The process of the study. |
| A．No other studies about the benefits of arts exist. |
| B．Love for arts may keep long in kids’ whole life. |
| C．Age matters in how people view their art experiences. |
| D．Most kids participating in art programs will work in arts. |
| A．How can Art be Connected to Our Life? |
| B．Can Art Education Affect Our Income? |
| C．Should Kids Walk into Art Museums? |
| D．What Should Art Museums do for Kids? |
9 . If maths is the language of the universe, bees may have just uttered their first words. New research suggests these busybodies of the insect world are capable of addition and subtraction (减法) — using colors in the place of plus and minus symbols.
In the animal kingdom, the ability to count — or at least distinguish between differing quantities — isn’t unusual: It has been seen in frogs, spiders, and even fish. But solving equations (方程式) using symbols is rare, so far only achieved by famously brainy animals such as chimpanzees and African grey parrots.
Building on previous research that says the social insects can count to four and understand the concept of zero, researchers wanted to test the limits of what their tiny brains can do.
Scientists trained 14 bees to link the colors blue and yellow to addition and subtraction, respectively. They placed the bees at the entrance of a Y-shaped maze (迷宫), where they were shown several shapes in either yellow or blue. If the shapes were blue, bees got a reward if they went to the end of the maze with one more blue shape (the other end had one less blue shape); if the shapes were yellow, they got a reward if they went to the end of the maze with one less yellow shape.
The testing worked the same way: Bees that “subtracted” one shape when they saw yellow, or “added” one shape when they saw blue were considered to have aced the test. The bees got the right answer 63% to 72% of the time, depending on the type of equation and the direction of the right answer — much better than random guesses would allow—the researchers report today in Science Advances.
Though the results came from just 14 bees, researchers say the advance is exciting. If a brain about 20,000 times smaller than ours can perform maths using symbols, it could pave the way to novel approaches in artificial intelligence (AI) and machine learning. Just don’t ask the bees to do your homework anytime soon.
1. Why do the scientists conduct the research?| A．To teach them maths. | B．To test the power of tiny brains. |
| C．To explain the meaning of colors. | D．To get access to machine learning. |
| A．Given up. | B．Entered for. |
| C．Got through. | D．Checked over. |
| A．Language acquisition. | B．Arithmetic learning. |
| C．Protection of animals. | D．Development of AI. |
| A．Bees “Like” Counting |
| B．Bees “Tell” Colors Apart |
| C．Bees “Perform” Maths Using Shapes |
| D．Bees “Get” Addition and Subtraction |
Bad news sells. If it bleeds, it leads. No news is good news, and good news is no news. Those are the classic rules for the evening broadcasts and the morning papers. But now that information is being spread and monitored(监控) in different ways, researchers are discovering new rules. By tracking people’s e-mails and online posts, scientists have found that good news can spread faster and farther than disasters and sob stories.
“The ‘if it bleeds’ rule works for mass media,” says Jonah Berger, a scholar at the University of Pennsylvania. “They want your eyeballs and don’t care how you’re feeling. But when you share a story with your friends, you care a lot more how they react. You don’t want them to think of you as a Debbie Downer.”
Researchers analyzing word-of-mouth communication—e-mails, Web posts and reviews, face-to-face conversations—found that it tended to be more positive than negative(消极的), but that didn’t necessarily mean people preferred positive news. Was positive news shared more often simply because people experienced more good things than bad things? To test for that possibility, Dr. Berger looked at how people spread a particular set of news stories: thousands of articles on The New York Times’ website. He and a Penn colleague analyzed the “most e-mailed” list for six months. One of his first findings was that articles in the science section were much more likely to make the list than non-science articles. He found that science amazed Times’ readers and made them want to share this positive feeling with others.
Readers also tended to share articles that were exciting or funny, or that inspired negative feelings like anger or anxiety, but not articles that left them merely sad. They needed to be aroused(激发) one way or the other, and they preferred good news to bad. The more positive an article, the more likely it was to be shared, as Dr. Berger explains in his new book, “Contagious: Why Things Catch On.”
1. What do the classic rules mentioned in the text apply to?
| A．News reports. | B．Research papers. |
| C．Private e-mails. | D．Daily conversations． |
| A．They’re socially inactive. |
| B．They’re good at telling stories. |
| C．They’re inconsiderate of others. |
| D．They’re careful with their words. |
| A．Sports new. | B．Science articles. |
| C．Personal accounts. | D．Financial reviews. |
| A．Sad Stories Travel Far and Wide |
| B．Online News Attracts More People |
| C．Reading Habits Change with the Times |
| D．Good News Beats Bad on Social Networks |
