“Data is the new oil.” Like the sticky black thing, all those Is and 0s are of little use until they are processed into something more valuable. That something is you.
Five of the world’s ten most valuable companies are built on a foundation of tying data to human beings. Google and Facebook want to find out as much as possible about their users’ interests, activities, friends and family. Amazon has a detailed history of consumer behavior. Tencent and Alibaba are the digital wallets for hundreds of millions of Chinese; both know enough about consumers to provide widely used credit scores. Those with a good Zhima credit score, provided by Alibaba, enjoy discounts. Those without receive few offers. In other words, data are used to decide what sort of access people have to services.
That data are valuable is increasingly well-understood by individuals, too, especially because personal information is so often leaked（泄露）or stolen. The list of companies that have suffered some sort of data leak in 2018 alone reads like a roll call of household names: Facebook, Google, British Airways and so on. Such events have caused a switch in the public understanding of data collection. People have started to take notice of all the data they are giving away.
Yet few people have changed their online behavior or exercised what few digital rights they possess. Partly this is because managing your own data is time-consuming and complex. But it is more because of a misunderstanding of what is at risk. “Data” is an abstract concept. Far more solid is the idea of identity. It is only when “data” is understood to mean “people” that individuals will demand responsibility from those who seek to know them.
The fossils of past actions fuel future economic and social outcomes. Privacy rules and data-protection regulations are extremely important in protecting the rights of individuals. But the first step towards ensuring the fairness of the new information age is to understand that it is not data that are valuable. It is you.
1. The example of Zhima credit scores is mentioned to show __________.| A．data help companies target their services |
| B．credit scores change people’s way of life |
| C．Alibaba gains popularity among customers |
| D．people prefer to be offered discounts |
| A．The development of companies. | B．The history of consumption. |
| C．Cases of data leak and theft. | D．Lists of household names. |
| A．they find it time-consuming and complex |
| B．they are not fully aware of its importance |
| C．they have no access to their personal data |
| D．they are afraid of taking responsibility |
| A．To defend companies’ use of data. |
| B．To show the economic value of data. |
| C．To call for more regulations to protect data. |
| D．To advocate a new way of thinking about data. |
相似题推荐
【推荐1】A secretive facial recognition program “could announce the end of public anonymity (匿名),” said Kashmir Hill in The New York Times. While police departments have used facial recognition tools for years, they’ve been limited to searching government-provided images, for example driver’s license photos. Now an app called Clearview AI can remove images of faces “from across the internet”—including social media sites like Facebook and Twitter, employment sites, even Venmo—gathering a database of more than 3 billion photos. “Until now, technology that readily identifies everyone based on his or her face has been forbidden because of its invasion of privacy.” Clearview licenses its technology to more than 600 law implementation agencies. New York City passed on the app after a 90-day test, worried about potential misuse. Clearview’s investors “predict that its app will eventually be available to the public.” Soon, “searching someone by face could become as easy as Googling a name.”
We’ve been building toward this moment for a long time, said Adrian Chen in The California Sunday Magazine. In the late 1800s, the French police officer Alphonse Bertillon devised the first “method for identifying criminals based on their physical features,” using 11 physical measurements. But scale changes everything. The Department of Homeland Security plans to scan “97 percent of all passengers on outgoing international flights.” And the technology has been improved and commercialized to the point where you can search a database and buy scans for as little as “40 cents an image if you opt for Amazon’s facial recognition software plan.”
All this has already led to growing fears about facial recognition, said Janosch Delcker and Cristiano Lima in Politico.com, but “efforts to check its spread are hitting a wall of resistance on both sides of the Atlantic.” A two-party push to limit the government’s use of facial recognition has been delayed in Congress. The European Union (EU) is discussing a five-year temporary ban, but European privacy rules contain “a broad carve-out for public authorities.” And authorities are using it: London’s police just last week enabled live facial recognition for cameras across the city.
Even if some bans on the technology succeed, said Bruce Schneier in The New York Times, we’re still building an “observation society.” Facial recognition is just one identification technology among many. An entirely unregulated data industry is already creating “descriptions of who we are and what our interests are” by tracking our movements, purchases, and interactions. “We are being identified without our knowledge, and society needs rules about when that is permissible.”
1. So far Clearview’s customers are ______.| A．investors of AI apps | B．social media sites |
| C．small groups of private users | D．government departments |
| A．facial identification technology has gone far beyond its original purpose |
| B．people should be scanned through more available physical measurements |
| C．border security inspection has brought commercialization of identification software |
| D．widespread cheap images are becoming a drawback for facial recognition technology |
| A．Rules concerning anti-invasion of privacy are practicable around the world. |
| B．Facial recognition technology is too irresistible to set aside for governments. |
| C．Efforts to stop misuse of facial identification have achieved an initial success. |
| D．Prohibition on identification technology has gained support from governments. |
| A．Facial recognition is under control | B．Get your facial identification ready |
| C．Your face is now public property | D．Establish a larger face database |
【推荐2】Is it possible to persuade mankind to live without war? War is an ancient institution which has existed for at least six thousand years. It was always bad and usually foolish, but in the past the human race managed to live with it. Modern creativity has changed this. Either man will abolish war, or war will abolish man. For the present, it is nuclear weapons that cause the most serious danger, but bacteriological (使用细菌的) or chemical weapons, may soon offer an even greater threat. If we succeed in abolishing nuclear weapons, our work will not be done. It will never be done until we have succeeded in abolishing war. To do this, we need to persuade mankind to look upon international problems in a new way, not by contests of force, in which the victory goes to the side which is the most skillful in killing people, but by arbitration (仲裁) according to agreed principles of law. It is not easy to change very old mental habits, but this is what must be attempted.
There are those who say that the adoption of this or that thought would prevent war. I believe this to be a big error. All thoughts are based on statements which are, at best, doubtful, and at worst, totally false. Their followers believe in them that they are willing to go to war in support them.
The movement of world opinion during the past few years has changed very largely such as we can welcome. It is believed that nuclear war must be avoided. Of course very difficult problems remain in the world, but the attitude towards them is a better one than it was several years ago. It has begun to be thought, even by the powerful men who decide whether we shall live or die, that people should reach agreements even if both sides do not find these agreements wholly satisfactory. It has begun to be understood that the important conflict nowadays is not between different countries, but between man and the atom bomb.
1. It is implied in the first paragraph that war now is ________.| A．as bad as in the past | B．as necessary as in the past |
| C．worse than in the past | D．not so dangerous as in the past |
| A．improving weapons | B．abolishing war |
| C．solving international problems | D．living a peaceful life |
| A．is a supporter of some modern thoughts |
| B．has no doubt about the truth of any thought |
| C．believes the adoption of some thoughts could prevent war |
| D．does not think the adoption of any thought could stop war |
| A．It must be abolished if man wants to survive. |
| B．It is the only way to solve international problems. |
| C．It is impossible for the people to live without war. |
| D．It will be less dangerous because of the improvement of weapons. |
【推荐3】Technology seems to discourage slow, immersive reading. Reading on a screen, particularly a phone screen, tires your eyes and makes it harder for you to keep your place. So online writing tends to be more skimmable and list-like than print. The cognitive neuroscientist Mary Walt argued recently that this “new norm” of skim reading is producing “an invisible, game-changing transformation” in how readers process words. The neuronal circuit that sustains the brain’s capacity to read now favors the rapid absorption of information, rather than skills developed by deeper reading, like critical analysis.
We shouldn’t overplay this danger. All readers skim. Skimming is the skill we acquire as children as we learn to read more skillfully. From about the age of nine, our eyes start to bounce around the page, reading only about a quarter of the words properly, and filling in the gaps by inference. Nor is there anything new in these fears about declining attention spans. So far, the anxieties have proved to be false alarms. “Quite a few critics have been worried about attention span lately and see very short stories as signs of cultural decline,” the American author Selvin Brown wrote. “No one ever said that poems were evidence of short attention spans.”
And yet the Internet has certainly changed the way we read. For a start, it means that there is more to read, because more people than ever are writing. If you time travelled just a few decades into the past, you would wonder at how little writing was happening outside a classroom. And digital writing is meant for rapid release and response. An online article starts forming a comment string underneath as soon as it is published. This mode of writing and reading can be interactive and fun. But often it treats other people’s words as something to be quickly harvested as fodder to say something else. Everyone talks over the top of everyone else, desperate to be heard.
Perhaps we should slow down. Reading is constantly promoted as a social good and source of personal achievement. But this advocacy often emphasizes “enthusiastic”, “passionate” or “eager” reading, none of which adjectives suggest slow, quiet absorption.
To a slow reader, a piece of writing can only be fully understood by immersing oneself in the words and their slow comprehension of a line of thought. The slow reader is like a swimmer who stops counting the number of pool laps he has done and just enjoys how his body feels and moves in water.
The human need for this kind of deep reading is too tenacious for any new technology to destroy. We often assume that technological change can’t be stopped and happens in one direction, so that older media like “dead-tree” books are kicked out by newer, more virtual forms. In practice, older technologies can coexist with new ones. The Kindle has not killed off the printed book any more than the car killed off the bicycle. We still want to enjoy slowly-formed ideas and carefully-chosen words. Even in a fast-moving age, there is time for slow reading.
1. What is the author’s attitude towards Selvin Brown’s opinion?| A．Favorable. | B．Critical. | C．Doubtful. | D．Objective. |
| A．advocacy of passionate reading helps promote slow reading |
| B．digital writing leads to too much speaking and not enough reflection |
| C．the public should be aware of the impact skimming has on neuronal circuits |
| D．the number of Internet readers is declining due to the advances of technology |
| A．Comprehensive. | B．Complicated. | C．Determined. | D．Apparent. |
| A．Slow Reading Is Here to Stay |
| B．Digital Technology Prevents Slow Reading |
| C．Screen vs. Print: Which Requires Deep Reading? |
| D．Reading Is Not a Race: The Wonder of Deep Reading |
【推荐1】To make artificial intelligence that can reason and apply knowledge flexibly, many researchers are focused on fresh ideas from neuroscience (神经科学). Should they be looking to psychology too? Researchers are working to develop new AI systems that can figure out simple abstract relations between objects and the reason behind them as effortlessly as a human brain.
Artificial intelligence has come a long way. In recent years, smart machines inspired by the human brain have shown superhuman abilities in games like chess and Go, proved remarkably expert at imitating some of our language skills. But with various other aspects of what we might reasonably call human intelligence — reasoning, understanding causality (因果关系), applying knowledge flexibly, to name a few — AIs still struggle. They are also inefficient learners, requiring large amounts of data where humans need only a few examples.
Some researchers think all we need to bridge the gap is ever larger AIs, while others want to turn back to nature’s blueprint. One path is to double down on efforts to copy the brain, better replicating (复制) the intricacies of real brain cells and the ways their activity is arranged. But the brain is the most complex object in the known universe and it is far from clear how much of its complexity we need to replicate to reproduce its capabilities.
That’s why some believe more abstract ideas about how intelligence works can provide shortcuts. Their claim is that to really accelerate the progress of AI towards something that we can say thinks like a human, we need to imitate not the brain — but the mind. “In some sense, they’re just different ways of looking at the same thing, but sometimes it’s profitable to do that,” says Gary Marcus at New York University and start-up Robust AI. “You don’t want a replica, what you want is to learn the principles that allow the brain to be as effective as it is.”
1. What do we know about the current AI?| A．They are good at reasoning. | B．They have amazing learning ability. |
| C．They can't understand complex information. | D．They lack some elements of real intelligence. |
| A．People fail to understand the complexity of the brain. |
| B．Scientists need to focus on the structure of the brain. |
| C．The attempt to copy the brain might be unrealistic. |
| D．Scientists are doubtful about the future of AI. |
| A．Make AI more creative. | B．Teach more principles to AI. |
| C．Study how intelligence works. | D．Update their knowledge constantly. |
| A．Are the Smart Machines Intelligent Enough? |
| B．Make Machine Minds That Really Think Like Us |
| C．What to Expect with the Future of AI Technology? |
| D．The Future of AI? Psychology May Provide Fresh Ideas |
【推荐2】It is inevitable (不可避免的) that students will make mistakes. Some teachers think punishing students is the most effective way for them to learn their lessons. Others choose a more moderate (温和的) way, like a face-to-face talk. I support the second.
In my opinion, punishment, especially physical punishment, will harm the students mentally. The students are likely to feel very ashamed. Their confidence may get lost as a result. They may end up locking themselves up and refusing to communicate with even their best friends. In such a situation, it will be very difficult to encourage them to open up again.
Furthermore, punishment is likely to cause additional misunderstandings between the teacher and the student. For example, my cousin once disturbed his teacher in class by talking to another student. The teacher only punished him instead of both of them. He believed the teacher to be partial towards students with better grades. Little by little, he started to dislike this teacher.
To help students learn lessons from their mistakes, there are many better methods for teachers to use than punishment. Here are some suggestions:
① Both the student and the teacher should calm down and then discuss the problem together.
② The teacher should give the student a chance to express his or her thoughts on the problem. In this way, the student may also be more willing to follow the teacher’s advice.
③ The teacher and the student can reach an agreement. For example, if the student promises not to make the same mistake again, the teacher can promise him or her a reward (奖励).
1. According to the writer, if a student gets physical punishment, he or she may ________.| A．understand the teacher | B．lose the confidence |
| C．follow the teacher’s advice | D．learn some lessons |
| A．部分的 | B．热情的 |
| C．偏袒的 | D．聚会的 |
| A．Para.1 and Para. 2 | B．Para. 2 and Para. 3 |
| C．Para. 2, Para. 3 and Para. 4 | D．Para. 3 and Para. 4 |
| A．To call on students not to make mistakes |
| B．To ask both teachers and students to calm down. |
| C．To advise teachers to use a better way instead of punishment |
| D．To advise teachers to use physical punishment |
| A．a nurse | B．not a good student |
| C．a strict teacher | D．a worrying parent |
【推荐3】Rather than building new homes to help satisfy housing markets, a new study says that taxing empty homes in big cities could increase housing affordability for local residents while generating income for the governments.
During the past 20 years, housing affordability has decreased significantly in the UK due to a rapid increase in prices relative to earnings. This may be due to foreign investors buying out properties in cities such as London, or from British citizens in the countryside buying out second homes in the city, which reduces the availability of affordable housing for local residents.
This means that local citizens who actually live in the city are forced to pay more money for housing in neighborhoods that are filled with homes that are unoccupied for more than half of the year.
In a study that was published recently,researcher Jonathan Bourne at University College London studied the relationship between the amount of properties which do not have permanent residents, and housing affordability in different parts of England and Wales. Upon researching the data, which represents about 40% of the population.the researcher was stunned to find that there were over 340,000 empty apartments across the places.
Though some cities are trying to meet housing demands by building more housing. Bourne suggests that local governments put an empty homes tax of 1% instead. “The data shows that empty homes are very concentrated in small numbers of desirable areas. In such cases simply building more homes is not going to solve the problem.as the issue is severe competition for property, not a lack of places to live." says Bourne.
Vancouver introduced a similar empty homes tax in 2017,which was the first oi its kind in North America. One year after it went into effect. the city reported a 15% decrease in unoccupied homes,which amounted to 163 properties being rented out to local people. Furthermore, the tax raised more than $ 38 million in city revenue(税收），all of which was spent on affordable housing programs.
1. Who might be blamed for low housing affordability?| A．Local residents. |
| B．Foreign tourists. |
| C．The local governments: |
| D．The owners of empty homes. |
| A．Excited. |
| B．Surprised. |
| C．Proud. |
| D．Curious. |
| A．Taxing empty properties works well. |
| B．Taxes on housing need to be cut down. |
| C．Providing more housing is a wise choice. |
| D．Housing demands have fallen in North America. |
| A．To encourage people to rent a house. |
| B．To suggest building more new homes. |
| C．To explain why housing prices have risen. |
| D．To discuss solutions to affordable housing. |
【推荐1】Letter to My Younger Self
Dear 17-year-old self,
When your Laker (洛杉矶湖人队球员) dream comes true tomorrow, you need to figure out a way to invest in the future of your family and friends. This sounds simple, but you have to take some time to think it over.
I said invest.
I did not say give.
Let me explain.
Purely giving material things to your siblings (兄弟姐妹) and friends may appear to be the right decision. You love them, and they were always there for you growing up, so it’s only right that they should share your success and all that comes with it. You buy them a car, a big house, and pay all of their bills. You want them to live a comfortable life, right?
But the day will come when you realize that as much as you believed you were doing the right thing, you were actually holding them back.
You will come to understand that you were taking care of them because it made you feel good to see them smiling. That was extremely selfish of you. While you were feeling satisfied with yourself, you were slowly eating away at their own dreams and ambitions. You were adding material things to their lives, but taking away the most precious gifts of all: independence and growth.
Understand that you are about to be the leader of the family. This involves making tough choices, even if your siblings and friends do not understand them at the time.
Invest in their future; don’t just give.
Use your success, wealth and influence to put them in the best position to realize their own dreams and find their true purpose. Put them through school, set them up with job interviews and help them become leaders in their own right. Hold them to the same level of dedication (全身心投入) that it took for you to get to where you are now and where you will eventually go.
I’m writing you now so that you can begin this process immediately and don’t have to deal with the struggle of getting rid of the addiction you caused. That addiction only leads to anger and jealousy from everybody involved, including yourself.
There’s plenty more I could write to you, but at 17, I know you don’t have the attention span (注意力持续时间) to sit through 2,000 words. Trust me, setting things up right from the beginning will avoid a ton of tears and heartache, some of which remains to this day.
Much love,
Kobe
1. According to Bryant, “giving” could make ______.①him feel satisfied with himself
②him stand out from other players
③his siblings and friends live a comfortable life
④his siblings and friends depend on him
| A．①②③ | B．①②④ |
| C．①③④ | D．②③④ |
| A．had never dreamed of playing for the Lakers |
| B．spent a large sum of money buying houses for himself |
| C．has a circle of supportive friends |
| D．had trouble handling family relationships |
| A．shared his success with others |
| B．refused to live with his siblings |
| C．looked for well-paid jobs for his siblings |
| D．inspired his siblings to achieve their goals through hard work |
【推荐2】It is believed that around half the US adult population will be obese (肥胖的) by 2030, while one in four will fall into the severely obese category. This is according to a new study led by the Harvard T.H. Chan School of Public Health, which found that levels of obesity are increasing in every state. Indeed the predictions show that levels of severe obesity could be higher than 25 percent in half of states.
“Especially striking was our finding that among adults with very low income (less than $20,000 per year), severe obesity is predicted to be the most common in 44 states—almost everywhere in the US,” a researcher said.
The research was carried out to inform state policymakers—and perhaps help change the tendency. The study authors say the best form of attack is prevention. Limiting intake of sugar is stressed as one of the most effective and cost-effective methods for reducing obesity levels, and a tax likely to save more money than it costs.
Sugar (and the sugar industry) has come under fire for its role in promoting obesity. Indeed, one recent study published in September 2019 puts responsibility for today’s obesity epidemic (流行病) firmly on the shoulders of sugar, concluding high-sugar diets during childhood in the seventies and eighties could be behind the rise.
“We knew from previous work that obesity is increasing in the US, and that some states and demographic groups (人群) are at higher risk, but we were surprised that even the states with the lowest obesity will be above 35 percent in 2030—a level currently considered high, a researcher told Newsweek. What is clear is that we will not be able to treat our way out of this epidemic—achieving and keeping weight loss is difficult—so prevention efforts will be key to making progress in this area.”
1. What’s the most surprising finding in the study?| A．Over 25% of people will be seriously obese. |
| B．Levels of obesity are increasing in every state. |
| C．poor adults are more likely to be severely obese. |
| D．Half of the US adults will be overweight by 2030. |
| A．To reduce the tax. | B．To limit intake of sugar. |
| C．To reduce obesity level. | D．To inform policymakers. |
| A．Blame from researchers. | B．Rapid chemical change. |
| C．Current obesity epidemic. | D．High-sugar diets. |
| A．Obesity is increasing everywhere in the US. |
| B．All states in America are at the same level of obesity. |
| C．Maintaining weight loss is a good way to deal with obesity. |
| D．Diets with less sugar are vital to preventing the problem of obesity. |
【推荐3】Why can’t some people even get an inch of what they dream of becoming? Blame it on pure dreaming and lack of surrounding goals for achieving their dreams.
Setting goals is very significant part of accomplishing and positive actions. It is like scaling (攀爬) a 200 feet construction and marking in the early hours on what feet you would like to reach at this specific period.
People who set goals literally generate a map of their goal settings in life, marking where they should start, where to pause, where to study a bit, and where and when to end. Once this map comes into being, it allows the map drawer to check where he is in the scheme (安排) of things and whether or not he is making some planning that will take him closer to his goals.
By surrounding goals, people will know how they are doing and what they should be doing to get their goals or dreams in life. They will know if they can relax or if they have to double their efforts when they are falling short of what is expected of them.
Goal surroundings means a person isproactivein dealing with challenges that may affect his plans. Being proactive means one is able to outline possible difficulties that may occur as well as the solutions to these difficulties. By doing this, a person is not easily scared or defeated when challenges occur because he has already prepared for them. He knows they can happen and he has prepared a solution or strategy when that time comes.
Setting goals will enable people to track their progress in whatever hard work they set out to do. It will help people become more confident in themselves and more motivated to get their plans.
1. The purpose of this passage is to ________.| A．explain the difference between the two goals |
| B．show the importance of surrounding goals |
| C．tell us how to set and achieve one’s goals |
| D．tell us setting goals makes one confident |
| A．positive | B．careful |
| C．brave | D．prepared |
| A．achievements come to those who are well prepared |
| B．everyone faces the situation which is scaring or threatening |
| C．the higher one sets his goal, the more achievements he will have |
| D．success never comes to people who always blame |
【推荐1】5G, the fifth generation of wireless, promises lightning-fast download speeds and could lay foundation for high-tech advancements like self-driving cars. But like many new technologies, it's causing concern about potential health issues.
The first generation of wireless introduced mobile phones, and 2G brought texting. 3G laid the groundwork for smart-phones, and 4G allowed video streaming and more. 5G is expected to download data 20 times faster than its predessor(前任)，and some experts argue it could be much faster.
Too much of a good thing?
It's not just about streaming data faster, it's about streaming more of it. On a 5G network, a user can download a movie instantly, and data will flow between connected objects without delay. The amount of data people use on mobile devices has gone up 40 times since 2010 and is only expected to increase. 5G networks are wireless companies attempts to satisfy that demand.
Uncertain effects
The untested nature of 5G, and the extensiveness of its infrastructure( 基础设施） has some worried that the increased exposure could have serious health effects. Wireless safety advocates（倡议人士）have called for more studies on the effects of the exposure, and one group is trying to stop the installment of 5G networks in Chicago's neighborhoods.
The federal government has safety rules that wireless companies must obey that limit human exposure to radio waves, including frequencies uses with 5G.
Wireless industry association CTIA says typical exposure to 5G infrastructure is comparable to Bluetooth devices and baby monitors, and there is no scientific evidence of negative health effects.
Still, assurances from government agencies and industry operators are not enough for Chicago resident Judy Blake. Additional studies on 5G’s health impacts likely wouldn’t soothe her either. She said, “People can't choose whether or not to be exposed to this radiation.”
“I don’t need another test. The only test that’s going to happen now is people’s lives,” said Blake, 67.
Only time will tell?
Though little is known about the long-term health impact of the millimeter waves that 5G operates on, some research has shown short-term exposure could be problematic, said Joel Moskowitz, a public health expert at the University of California at Berkeley.
The eyes and sweat glands(腺体）are among several body parts studies have shown could be at risk. Moskowitz said. Insects and plant life could also be affected, he added.
The millimeter waves used in SG are absorbed by the upper layers of skin, potentially causing the temperature of the skin to rise, said Suresh Borkar, senior lecturer in the Department of Electrical and Computer Engineering at the Illinois Institute of Technology. The effects of extended rises in skin temperature “become a big unknown,” he said.
This isn't the first time people will come into contact with millimeter waves: They're also used in airport body scanners, said Lav Varshney, assistant professor of electrical and computer engineering at the University of Illinois at Urbana-Champaign. Still, it's the first time the high- frequency waves will he used on such a scale, and concerns surrounding new technologies are common throughout history.
“When cars first started replacing horse-drawn carriages, people were afraid of what the health impacts of traveling at high speeds would be,” Varshney said. “There has always been occurrence of this fear.”
1. Which of the following is TRUE according to the passage?| A．5G is faster but not safe to human beings. |
| B．5G features faster and more in transiting. |
| C．5G can meet people's any demand in theory. |
| D．5G just makes little impact on people's health. |
| A．Millimeter waves certainly affect people's health seriously |
| B．Millimeter waves will cause the skin’s temperature to rise. |
| C．It's obvious that many scientists object to 5G technology. |
| D．It's hard to say whether millimeter waves do damage to health. |
| A．to make somebody feel calm or less worried. |
| B．to make somebody feel happy or more excited. |
| C．to make somebody feel disappointed or less satisfaction |
| D．to make somebody feel inspired or more energetic. |
| A．5G’s Advantages and Disadvantages |
| B．The Development of Wireless |
| C．5G Health Concern |
| D．5G Future Prediction |
【推荐2】American Anai Espinoza is in the eighth grade. This summer, she took part in a summer dance program called AileyCamp. Each morning, she and other campers would say several phrases together. Her favorite is this: "I am in control." Espinoza said, "It makes me believe I have the power to choose the right thing."
AileyCamp was created in 1989 in Kansas City, Missouri by world-famous dancer and director Alvin Ailey. About 1,000 students in 10 U. S. states take part in AileyCamp every year. It is a free, six-week program, especially aimed at young people in financial need or who have school, social or family difficulties.
In addition to dance, the camp introduces students to visual arts, creative writing and other communication skills. It also teaches them how to eat well, solve conflicts and become leaders, notes the camp's website. Dianne Caroll Sales directs the AileyCamp in Atlanta, Georgia. When the camp is over, the city's professional ballet company offers 10 students a full-tuition scholarship for a year of training. The scholarship can be renewed.
Kameron Davis received one of those scholarships when he was a young man. He trained with the Atlanta Ballet for three years. Then he became a dance teacher. Davis said he does not think his mother could have paid for dance classes without the scholarship. Davis said children at school made fun of him when he began dancing. AileyCamp, he said, offered him a safe place and increased his confidence. Today, he enjoys giving back to the program by helping new campers build their confidence, too. "It's an open door to finding new things, doing new things," Davis said. "When I got to AileyCamp, it just reassured me that, 'Hey, it's okay. Everybody is different. You shouldn't be judged by what you do just because not a lot of people do it.'"
1. What is special about AileyCamp?| A．It was set up in Missouri. |
| B．Its founder was a famous dancer and director. |
| C．It was free of charge. |
| D．It was intended for the poor young people who had troubles in life. |
| A．comfort | B．warn |
| C．teach | D．persuade |
| A．He got the scholarship because he was good at the Atlanta Ballet. |
| B．He believed his mother would pay for his dance class from the very beginning. |
| C．He was grateful for AileyCamp. |
| D．He often played jokes on his students when teaching them to dance. |
【推荐3】
Pesticides might just be a bee's worst enemy. They harm their brains, slow down their reproduction, and even kill their buzz. Now it seems they damage their social lives and reduce their ability to care for their young.
While previous studies have shown that commonly used neonicotinoid（新烟碱类）pesticides make bees sick and affect how they search for food and navigate, a new study gives more of an idea of how these chemicals affect the internal workings of a colony（种群）. Studying these effects has proved difficult, so the team employed a new technique. They stuck tiny QR codes to the backs of humblebees and tracked their movements using a robotic camera.
The researchers looked at 12 colonies housed in a lab, giving some the same level of imidacloprid—the world's most commonly used pesticide—that they'd be exposed to in the wild while keeping others pesticide-free as controls. They checked on them for a few minutes 12 times a day. The findings are published in the journal Science.
Unfortunately, the researchers found a number of obvious differences between the bees exposed to the pesticide and the controls. The bees given neonicotinoids spent less time interacting with other bees and more time resting. This pause in activity tended to happen more at night, but the researchers aren't sure why.
"Bees actually have a very strong circadian rhythm（生理节奏）," lead author James Crall explained in a statement. "So what we found was that, during the day, there was no statistically observable effect, but at night, we could see that they were crashing. We don't know yet whether the pesticides are destroying circadian gene regulation or if this is just some, maybe physiological feedback…But it suggests that, just from a practical perspective, if we want to understand or study these compounds, looking at effects overnight matters a lot."
1. What does the new study suggest about pesticides' effect on bees?| A．Pesticides lead to their disease. |
| B．Pesticides slow down their brain function |
| C．Pesticides upset their community. |
| D．Pesticides damage bees' internal parts. |
| A．The tools used to observe the bees. |
| B．The data recorded by the robotic camera |
| C．The researchers conducting the experiments. |
| D．The bees kept free from the pesticides. |
| A．The circadian rhythm of bees is stronger during the day. |
| B．It is vital to study the performance of bees at night |
| C．It is certain that pesticides affect bees only at night. |
| D．The pesticides do great harm to circadian gene regulation of bees. |
| A．To inform people of the worrying effects of pesticides. |
| B．To check the best time to observe experimental results. |
| C．To call for the toughest ban on the chemicals. |
| D．To recommend measures to improve the quality of pesticides. |
