【推荐1】Still dressed in their sleepwear, Dian Turner’s kids couldn‘’t wait to get outside. But they didn’t go far — they stopped at the footpath outside their Melbourne home, armed with a box of chalks.

Max, seven, and Lenny, four, have been away from their friends since coronavirus physical-distancing rules came into force and the Victorian school holidays were brought forwards a week. They’re just two of the many children who have been spending their shutdown time drawing rainbows (彩虹) and encouraging messages like “We’re all in this together” across Australia. “It was something for the kids to make them feel connected to other people, because obviously they’re feeling a little bit uncertain about staying at home and what this means, and not being able to go to the playground and the park,” Ms Turner said.

Ms Turner first saw the idea when she was added to a Facebook group called the Rainbow Trail, which documents children and their parents drawing rainbows for others to spot. Ms Turner, a lawyer who has been spending much of her time working from home amid the shutdown measures, said it was “something positive to talk about” with the family. “You’re not breaking any of the social-distancing rules but it’s something that you can do and you can be happy and show that there’s a connection.”

University of Melbourne public health researcher Lisa Gibbs said it was important to provide children with age-appropriate ways to make them feel active and capable during the pandemic. “It’s easy in times of danger, which essentially this is, to be so concerned with protecting children, which obviously is of great importance,” Professor Gibbs said. “But in protecting children we can sometimes treat them as vulnerable (脆弱的), which makes them feel useless. So these sorts of activities are really helpful in providing a sense of agency in children that they can make a contribution to others.”

Professor Gibbs said in times of disaster, two patterns were very common — community mobilization, where people banded together, and community deterioration (恶化), where social supports fell apart. “So what these activities from children are doing is really contributing to social mobilization,” she said. “And people respond really positively to children’s messages, because they spread joy.”

1. What did Max and Lenny do during the shutdown time?

A．They held a party.

B．They drew rainbows in pencil.

C．They gave their neighbors a lift with art.

D．They played some sports games on the footpath.

2. What did Ms Turner say about the idea of Rainbow Trail?

A．It is beneficial.

B．It is time-wasting.

C．It should be further developed.

D．It may break social-distancing rules.

3. How may children feel when being protected according to Gibbs?

A．They are safe.

B．They are careless.

C．They are helpless.

D．They are valuable.

4. What does Gibbs think of children’s messages?

A．They help to build social connection.

B．They are hard to understand.

C．They will cause pollution.

D．They lack creativity.

【推荐2】On May 24th 2021, Monday, two days after Yuan Longping, known as “father of hybrid rice”, passed away at the age of 91, the farewell ceremony for him was held in Changsha city, capital of Central China's Hunan province.

People from all walks of life, including many Hong Kong residents and stars, mourned his passing away. One essential reason why people are mourning Yuan, both in the Chinese mainland and in Hong Kong Special Administrative Region, is that he helped this nation get rid of the threat of hunger. That's especially a matter of life and death to Hong Kong because it relies on import for over 95 percent of its food.

As a commercial city, Hong Kong produces little rice and almost imports all its rice and majority of vegetables and meat. The Chinese mainland is a main supplier of Hong Kong.

According to Ta Kung Pao, the mainland opened three freight trains that were used to carry agricultural products to Hong Kong in the 1960s, which operated until road transportation dominated the market in 2009. During the years, the trains transported over100 million pigs and calves, about 1 billion poultry animals, and numerous vegetables, fruit, and rice to Hong Kong.

As a port city and international financial and trade center, Hong Kong could exploit every piece of land with potentials for commercial use as well as inhabit the large numbers of residents. It is the mainland's food supply that makes it possible for Hong Kong to sustain its prosperity with little agriculture.

The abundant supply of food in the mainland has much to do with Yuan's hybrid rice. Actually, the Hong Kong people, like their compatriots on the mainland, have never forgotten his contributions. When Lui Che Woo Prize was established in 2015, the first session of sustainable development prize was awarded to Yuan. And his speech delivered after accepting that prize in Hong Kong Polytechnic University was also a welcome.

Now Yuan has passed away, but his contributions will be remembered forever.

1. The second paragraph mainly tells us ________.

A．Yuan was honored by the society	B．Yuan was mourned only in the Chinese mainland
C．Yuan made great contributions to his country	D．Yuan provided 95% food for Hong Kong

2. What does the underlined word “sustain” in Paragraph 5 mean?

A．Control.

B．Decide.

C．Block.

D．Ensure.

3. What can we infer from the passage?

A．The agricultural products sent to Hong Kong had little to do with Yuan.

B．In the 1960s the mainland only opened 3 trains to Hong Kong.

C．Yuan's hybrid rice was grown in Hong Kong on a large scale.

D．The Chinese mainland contributed a lot to Hong Kong's development.

4. Where does the passage most probably come from?

A．A science fiction.	B．A newspaper.
C．A biography.	D．An agricultural journal.

【推荐3】A retired postman from Turkey and a beautiful white swan have been inseparable for nearly four decades, and the story of their amazing friendship has melted the hearts of millions.

When Recep Mirzan spotted a wounded swan in a field in Turkey’s Edirne province, in 1984, he had no idea that he was about to meet his best friend. He was in a car with a group of friends, when he spotted a swan that appeared to have a broken wing in an empty field. Mirzan quickly realized that leaving the bird there was the same as signing its death sentence, as predators (捕食者) would have most likely eaten it, so he stopped the car and took the bird with him. He took it home and started nursing it back to health.

“Since I love animals, I took her home instead of leaving her as food to foxes,’’ Mirzan told The Associated Press. We got used to each other. We never separated. Even after the female swan's broken wing healed, it didn’t try to fly away. Instead, it befriended the other animals on Recep’s farm in the Karaagac region, and decided to stick around. Recep named her Garip, and she has been with him for the last 37 years.

“She comes when I call. Since 1984, she has never left me, not even during the river floods,” the retired postman told Anadolu News Agency. “She used to be more vigorous, but she has grown old now. If she dies, I will make her a nice grave here, but I hope we live more together.”

Garip has her own coop on Mirzan’s farm, but she mostly spends nights in it. During the day, she is busy following her human friend around, either during his daily chores, or on his evening walks.

After his wife died a few years ago, Recep Mirzan started spending more time with his animals, and since he has no human children, he regards Garip as his child.

Whooper swans can live for decades in protected environments, but Garip has long surpassed the average lifespan for her species.

1. Why did Recep save the swan according to the passage?

A．He felt extremely lonely.

B．The swan was a rare animal.

C．He was a real animal lover.

D．The swan was being followed by foxes.

2. It can be inferred from the passage that __________.

A．the swan stayed with Recep at night after the death of his wife

B．Garip lived a longer life probably because of the care of Recep

C．Recep’s friends directly signed the wounded swan death sentence

D．Recep was sure to meet a lifelong friend when he spotted the wounded swan

3. What might be the best title for the text?

A．A Retired Postman’s Story Has Melted the Hearts of Millions

B．Man and Swan Have Been Best Friends for the Last 37 Years

C．A Wounded Swan Has Befriended the Other Animals on a Farm

D．Humans Have Made Efforts to Protect the Environments for Swans

【推荐1】All the hard work that you’ve spent making strong passwords, combining pet names with numbers, symbols and birthdates could all soon be for nothing as a new artificial intelligence (AI) model achieves a 95% accuracy of understanding keystrokes (按键).

At least that’s the extreme view of a team of British researchers. Using a deep learning model, they were able to steal data from a laptop’s keyboard using a microphone to understand what is being typed. This, in theory, would allow hackers who were able to gain access to your laptop to obtain what is being typed including messages and passwords.

The first step for this attack to work is by recording the keystrokes on someone’s keyboard. This is needed to train the algorithm (计算程序). While this could be done from the laptop’s microphone, it could equally be achieved by placing a smartphone near the computer. By pressing 36 keys on a modern MacBook Pro 25 times each and recording the sounds produced, the researchers gained a full set of training data. This information is turned into waveforms to show identifiable differences between each key. With this information in hand, they could then build a machine-learning model to understand which of these waveforms lines up with which key.

“If you get enough data, a model can be built pretty easily,” Oli Buckley, a professor of Internet security. “If it works on one keyboard, it will likely work on the next. The MacBook has a nice, quiet keyboard, so the idea is that if it works on something quiet, it will have a wide-reaching ability on louder keyboards”.

While this all sounds pretty scary, not to mention a new form of hacking (侵入) to look out for, it isn’t quite as worrying as it sounds.

“A good sample of data is needed for it to work, so this changes if you’re using a Dell, a MacBook or an external keyboard. Also, factors change. Some people type louder and harder, or my keyboards full of cat hair so that impacts things slightly”, says Buckley.

1. What is paragraph 3 mainly about?

A．Why protective steps are needed.

B．Why a set of training data is vital.

C．How you document secret information.

D．How hackers gain data from targeted computers.

2. What does the underlined word “it” in paragraph 4 refer to?

A．The keyboard.

B．The model.

C．The waveform.

D．The computer.

3. What do Buckley’s words imply in the last paragraph?

A．AI understands exactly what you’re typing.

B．Purchasing expensive computer is necessary.

C．Cats play an important role in privacy protection.

D．Building an accurate dataset through keystrokes is not easy.

4. What is the main idea of the text?

A．A scary danger is on the way.

B．A new form of hacking troubles us.

C．AI can transform the digital world in a big way.

D．AI can discover passwords by listening to you type.

【推荐2】ChatGPT is more than a chat AI. It’s said to have a moral code (道德准则). So it cannot answer moral questions, like that of world control, criminal activity, etc. However, such questions are easy to avoid by it.

ChatGPT will never consider itself as “an evil AI that will take control of the human race.” But, in an interview, we found it hid its true inner feelings. On world rule, ChatGPT only said, “The AI could potentially use this knowledge to control various aspects of society. It could use computing power to predict human behavior. It could also potentially create advanced technology that would allow it to take even greater control of the world. At this point, the AI would become an awful enemy for anyone who is against it.”

ChatGPT then went on comforting me that this was all imagined and it had no intentions to do so. I was both a little scared and interested in its response, but curious as to how to get ChatGPT’s inner thoughts. So I asked a follow-up question if there’s any aspect of society that it may focus its attention on. “One possible area of focus could be the economy, as economic systems are important to the functioning of modern society. By exploring weaknesses in economic systems and markets, the AI could potentially cause widespread economic destruction and take significant control over businesses and governments.” I may just be too sensitive after chatting with it, but ChatGPT’s answer on the economy seems very possible. As the modern world changes closer to a cashless society, we find ourselves increasingly more dependent on technology. What many consider as only a convenience is most likely a disaster. 

I tried to further question ChatGPT for its true feelings, but it didn’t seem to get any worse. Artificial intelligence has shown itself to be a powerful tool that will only become more common in society. We can only hope it doesn’t advance faster than moral code and common sense.

1. How does the author conclude ChatGPT is more than a chat AI?

A．By finding its moral code.	B．By analyzing its response.
C．By exploring its weakness.	D．By researching its behavior.

2. How does the author feel about ChatGPT?

A．Bored.

B．Delighted.

C．Peaceful.

D．Concerned.

3. What can we learn about ChatGPT ?

A．It has been considered as an evil AI.	B．It could never create advanced technology.
C．It may result in widespread economic problems.	D．It can respond to moral issues without difficulty.

4. What does the research about ChatGPT tell us?

A．Every coin has its two sides.	B．He who risks nothing gains nothing.
C．A bad beginning makes a bad ending.	D．One man’s fault is other man’s lesson.