2 . For decades, people have guessed that artificial intelligence (AI) will eventually replace human workers. But developments in the past few years have _______ these concerns as companies have released AI that can answer questions, write articles and create images. Now, even people in creative fields must consider the _______ of AI replacing them. But many experts still insist that these AI programs are no substitute for human ability.

AI programs have the _______ to perform some tasks currently performed by human workers. These include media jobs, such as writing advertisements and articles, along with many jobs in the financial fields and even tech-related jobs such as computer programming. AI is good at _______ data, so financial analysts and market research analysts may find their jobs _______.

Using AI for certain tasks may be a good thing. Perhaps AI will _______ less interesting work, allowing people to do more satisfying jobs, just as earlier technologies have. Using a machine to do laundry saves time _______ to washing clothes by hand, and many people use that extra time productively. _______, AI may be able to take over dull tasks, liberating people to be truly creative, since thinking up new ideas is something AI cannot do.

Another big challenge for AI is human _______. Most people prefer to communicate with humans rather than machines. Hence, AI is __________ to replace humans for jobs that require personal connection, such as counseling or teaching. A robot can perform tasks, but it cannot __________ care about others, and sometimes care is what people need.

AI can process data quickly, but it can only use data that it is given. So it cannot adapt to situations that __________ significantly from those in its data. Thus, although some AI programs can create content, none of them can be truly creative as the content AI creates will __________ consist of some combination of its sources.

Finally, if the AI receives false information, it has no way of recognizing that as false. Humans can also be fooled, but life experience can tell them whether a claim is reasonable, an ability that AI does not have. __________, AI must continually be fact-checked to make sure its data, and therefore its conclusions, are accurate.

Thus, although AI may replace some jobs, others require a human __________. At best AI may eliminate certain boring parts of tasks so that humans can focus on things that only they can do.

3 . Ideally, childhood is a time of growth and learning, preparing for adulthood and also having fun. But for many children around the world, this time is cut short when they are forced to work, sometimes in dangerous conditions. _______, the United Nations (U.N.), some national governments and other organizations _______ June 12 as the annual World Day Against Child Labor.

As of 2020, around 160 million children worked as child laborers, which means that one child in 10 was a child laborer. _______, child labor has decreased over the past 20 years, but in recent years, this progress has stopped. Child labor is _______ from ordinary housework, helping with a family business or (for older children) working to earn pocket money when not in school. Work done by children is _______ as child labor when it harms the child physically, mentally, socially or _______, or when it prevents the child’s education.

About 79 million children are engaged in hazardous child labor. Sometimes this means the work itself is dangerous because of heavy machinery or exposure to _______. Hazardous child labor can also involve harsh conditions, long hours, or _______ to various kinds of abuse.

The primary goal of the World Day Against Child Labor is raising _______ of the issue and encouraging individuals, organizations and governments to ________. Combating (打击) child labor is a complex task. It involves social workers who identify child laborers and take action to provide these children and their families with other ________. But it also involves change in communities as a whole, ________ the social regulations that can lead adults to make their children work.

Child labor and poverty often go hand in hand as parents feel removing their children from school is necessary to earn money for their survival. So, measures meant to fight ________ are also tied to preventing child labor. Ensuring that children have quality educational opportunities is also important. If more opportunities were ________, more parents might give up the immediate benefit of a child’s paycheck to give that child an education.

Child labor is harmful to children and to communities, since it prevents children from growing into healthy, educated citizens who could make a(n) ________ in society. By highlighting the problem and offering a variety of solutions, the World Day Against Child Labor can make the situation a bit better.

5 . You have to make a speech. You have done your research and now have plenty of ideas bouncing around in your head that you want to get across. The big _______ you face at this point is how to organize those thoughts. Or perhaps you are planning to write a paper, and all you have is the main topic. You need to brainstorm some supporting ideas and then _______ how those ideas fit together.

These are just two cases that many people deal with _______. Some use outlining to flesh out and _______ their ideas, but is that the best strategy? If everyone thought in a linear (线性的) manner, then the answer would be yes, but most people don’t.

Enter mind mapping, a _______ that shows how different ideas and facts relate to one another. This two-dimensional (二维的) _______ is designed to help you remember information because its format is easy for your mind to _______. Mind maps have proven to increase not only productivity and _______ but also memory. More than 250 million people worldwide use them, so why don’t you have a try and see what they are all about?

What is a mind map? Simply put, it is one’s ideas put into the form of a _______ diagram that starts with a central idea. Put this idea in a bubble (气泡) in the middle of a page with lines radiating out to other bubbles that contain related themes or concepts. It should look like a many-legged spider. Use words, short phrases or ________ to express your ideas. These associations often lead to other ideas that can be added at the same level or in smaller branches where ________. Use color-coded bubbles for a visual representation of each branch’s ________. You are now mapping your thoughts and ideas in the way your brain thinks.

Studies have shown that this technique of using pictures, colors and visual arrangement has improved people’s recall and memory of information by 10 to 15 percent. But it doesn’t stop there. Creativity is aroused because of the spatial arrangement, ________ people to make more links and associations on topics of any kind. ________, it increases one’s productivity because mind mapping makes it easier to learn faster while communicating more effectively.

So whether you’re ________ a project or writing a research paper, make this technique a core part of your planning process!

7 . Owing to the recent pandemic （流行病）researchers have been trying to find more ways to kill viruses, and one result of their work involves _______ .

It has long been known that ultraviolet（UV）（紫外线的）light can destroy microbes such as bacteria and viruses. It is already used as a cleaning agent in hospitals and to _______ air and water but only when people aren't around. That's because there are three types of UV light: UVA, UVB and UVC. and they are all _______ to humans. UVA and UVB exposure can _______ skin cancer, while UVB is responsible for sunburns. UVC light is mostly absorbed by the Earth's atmosphere, but it is even more dangerous. Artificial UVC light can pass through the outer layer of skin and eye cells to _______ the living cells underneath.

_______, there is a type of UVC light, known as far-UVC, which does not pass through the outer layer of cells. But studies of the long-term effects of far-UVC on humans, _______ studies on groups comprising more than 20 people, are not available.

Researcher David Brenner has helped develop a far-UVC light that kills viruses and bacteria. In a normal-sized room, five lamps _______ the number of microbes by 98 percent in less than five minutes. To achieve results like this through ventilation（通风设备）alone, the air would have to be changed 184 times per hour, which is currently _______ . Even at lower settings, the lamps still killed 92 percent of viruses in 15 minutes.

Countries vary in their standards for how much UV light people are allowed to be ________ to. Since Brenner's team was operating in the United States, he observed American ________ , which are less strict than those of some countries such as Germany. But even working within Germany's lower limit of UV light exposure, Brenner's lights still decrease the number of microbes ________ . Brenner argues that using the lights, even ________ Germany's regulations, would likely have reduced the number of people who died from Covid-19.

In the future, far-UVC lamps may be ________ in all public spaces. Researchers hope that installation and use of such lamps could prevent future ________ . Although more extensive research needs to be done, there is hope that this will be their effect.

8 . Online art of all kinds can be accessed by as many people as the hosting server permits. But there is a(n) ______ that is allowing people to buy digital art.

Digital art that is sold online is known as an NFT, which ______ non-fungible token(非同质化代币). Non-fungible means that the item cannot be ______ by a similar item. For example, coins and bills are fungible because they have a set value and are easily exchanged. ______, trading cards are non-fungible because their worth varies depending on which card you have. An NFT can be ______ anything digital -songs, videos, images or even a social media post, one of which sold for almost USS3 million!

Others may be able to see this NFT, or art, but one person is listed as the owner on a blockchain-that is, a public ______. Blockchains are well equipped to keep track of the owner of NFT. In fact, they are used to record all kinds of online ______.

Some people are describing NFTs as an online version of collecting fine art. And collectors are ______ to put their money where their mouth is, paying thousands or even millions of dollars for NFTs.

As with fine art collecting, some people see purchasing NFTs as a(n) ______, buying art that they plan to sell at a higher price later. Others want the esteem (成就感) that comes with owning an NFT made by a famous ______. But given that a copy of an NFT is identical to the ______, the wisdom of paying massive amounts of money for one may seem ______.

On the other hand, the popularity of NFTs is ______ good news for the artists who create them. Upon selling their works as NFTs, artists receive much more than the small amounts of money they get when someone streams their video, for example. Some NFTs are even set up so that every time a work changes hands, the creator receives a percentage of the price. Thus, the artist can be paid for a single NFT many times over.

______, every NFT is unique, though some creators produce multiple very similar NFTs sort of like how multiple copies of any given trading card exist). ______ will tell whether NFT art will pay off for collectors in the long run, but for now it’s providing some people-including the artists with large sums of money.

9 . The market is ruled by supply and demand, and as a consumer you can have a huge impact on the ________ side of the equation (等式). If all of us make individual changes in what we buy and use, it can ________ up to a lot.

But reducing your own carbon emissions isn’t the most powerful thing you can do. You can also send a signal to the market that people are ________ to pay for zero-carbon alternatives. When you pay more for an electric car, a heat pump, or a plant-based burger, you’re saying, “There’s a market for this stuff. We’ll buy it.” If enough people send the same ________, companies will respond — in my experience, quite ________. They’ll put more money and time into making low-emissions products, which will ________ the prices of those products. It will make investors more confident about funding new companies that are making the ________. Without that demand signal, the innovations that governments and businesses invest in will stay on the ________. Or they won’t get developed in the first place, because there’s no ________ incentive (刺激) to make them.

Here are some specific steps you can take:

Reduce your home’s emissions. Depending on how much money and time you can spare, you can ________ your incandescent lightbulbs (白炽灯泡) with LEDs, insulate (使隔热) your windows, or replace your heating and cooling system with a heat ________.

Buy an electric vehicle. Although EVs are not suitable for lots of long-distance road trips, and ________ at home isn’t convenient for everyone, they’re becoming more affordable. This is one of the places where consumer behavior can have a huge impact: If people buy lots of them, companies will make lots of them.

________ a plant-based burger. I’ll admit vegetarian burgers haven’t always tasted ________, but the new generation of plant-based protein alternatives is closer to the taste of meat than before. Buying these products sends a message that making them is a wise investment. ________, eating a meat substitute just once or twice a week will cut down on the emissions you’re responsible for.

10 . Some literary characters capture the imagination of readers. Their adventures, experiences, talents and personalities make them _______. Detective Sherlock Holmes is one of these. Author Arthur Conan Doyle created Holmes in 1887 in his works. He was brilliant. Critically, his ability to notice _______, assemble them and draw conclusions amazed everyone. He first appeared in the story “A Study in Scarlet”The story also introduced Dr. John Watson and how he came to live with Holmes and be part of his life. Watson observes that many interesting people visit Holmes at various times during the day. Holmes informs Watson he is a “_______detective”. These people are clients, including _______ from Scotland Yard, who seek his help to solve difficult cases.

Watson narrates this first case which involves the murders of two men. The story has two parts. In the first part, Holmes solves the crime and captures the killer. The second part gives the backstory as to why the killer murdered his _______. It was a revenge (报复) killing for their part in the death of the murderer’s fiancee.

The Red-headed League is on many people’s lists of their favorite stories _______ Sherlock Holmes. In this story, red-headed businessman Jabez Wilson wants Holmes’ help. Several weeks before, Wilson’s young assistant, Vincent Spaulding, had _______ him to reply to a newspaper ad. The ad offered _______ paid work to a red-headed man. Wilson gets the job and is paid 4 pounds a week for short periods of afternoon work. _______ suddenly without notice the job stops. Wilson wants Holmes’s assistance to discover what happened. Holmes ________ a description of Spaulding and goes to see him at Wilson’s shop. He notices that the knees of Spaulding’s trousers are ________. Then Holmes taps on the pavement ________Wilson’s shop. Next he calls a police inspector and the director of the bank that is behind Wilson’s shop. The four men hide in the dark bank vault (金库) and wait. Soon two men, one of whom is Spaulding, ________ from a tunnel cut into the vault’s floor and are captured. The two men had ________ the Red-headed League to keep Wilson away while they dug the ________ to the bank vault.