2 . The silence of the Reference Library was broken only by the sound of pages being turned over. There were about twenty people in the room, most of them with their__________bent over their books. The assistant librarian sat at a desk in one corner.   She had a look at Phillip as he came in, then went on with her work.

Phillip had not been to this part of the library before. He_________around the room almost on tiptoe, _______of disturbing(打扰)the readers with his heavy shoes. The shelves were filled with thick books: dictionaries in many languages, biography and some others. He found nothing to interest him, _______he came to a small area on photography, which was one of his hobbies. The books in this area were on a high shelf out of his__________, so he had to fetch a small ladder(梯子) in order to get one down. Unluckily, as he was _______down the ladder, the book he had chosen slipped from his hand and fell to the floor with a__________crash. Twenty pairs of eyes looked_________ at him together. Phillip felt himself go red as he ________up his book, which did not seem to have been damaged by its________.

He had just sat down when he found the young lady assistant standing alongside him. “You _____be more careful when you are holding these books,” she said seriously. Satisfied that she had done her duty, she turned to go back to her desk. Then a sudden________struck her. “By the way, how old are you?” she asked Phillip. “Thirteen,” he told her. “You’re not________in here under the age of fourteen, you know,” the assistant said. “Didn’t you see the notice on the door?” Phillip shook his head. He _________the assistant to ask him to leave. Instead, in a more _____tone(语气) , she said: “Well, never mind. But make sure that you don’t disturb the other readers again, or I shall have to ask you to leave. ”

3 . To Their Own Beat

When Los Lobos perform in concert today, audiences in the thousands cheer them on. It’s hard to believe that the group started out as just another garage band playing popular rock-and-roll tunes from the radio, In 1974 four high school friends from East Los Angeles formed Los Lobos ( Spanish for “The Wolves” ) .

Like many garage bands, these friends might have simply gone their separate ways after high school. But the members of Los Lobos wanted to keep making music together. They decided to change their musical style and began focusing on traditional Mexican music that showed their tradition.

“We pulled out all those records we used to beg our parents not to play around our friends and found an incredible wealth of music,” says Perez. “These guys (on the records) were doing amazing things with their instruments, and we started trying to pick up on it. ”

The group put aside its electric guitars for the acoustic ones used in traditional Mexican music. For several years Los Lobos played at weddings or parties—any event that needed live music. They also landed a regular engagement (合同)   at a Mexican restaurant.

By 1978 Los Lobos had made enough money to record their first album   (唱片) , and they sold copies of it wherever they performed. They also returned to their electric guitars to get closer to a Tex-Mex sound, which is a mixture of traditional Mexican music, rock and roll, country music, and the blues. This new, louder sound produced one unexpected result: the group was fired from the restaurant.

But it didn’t matter that Los Lobos had lost their one steady job, because they had found a position that no other group took up. They had combined electric and acoustic instruments and blended (混合) musical styles in their own way. Steve Berlin joined the band in 1983 as the saxophone and keyboard player, adding to the band’s unusual sound.

“We didn’t so much want to recycle the music we’d grown up with as much as find the common links between it and all the other styles and sounds that were all around us,” Perez explains.   “It became a mission ...   bringing music together to bring people together. ”

In the 1980s Los Lobos gained the attention of several record companies. They were hired to perform on the soundtrack to the film La Bamba, which earned them a Golden Eagle Award. They have since earned many awards, including two Grammys and an MTV Video Music Award. Their many records have been very successful, and they have toured the world.

Even after 30 years of making music together, Los Lobos continues to experiment with their sound. They never moved far away from their Mexican roots, however.   They still include traditional music in their live performances, sharing their history—and their culture—with their fans.

6 . Frozen in time, a 125-million-year-old mammal attacking a dinosaur. A 39-million-year-old whale, the heaviest animal that ever lived. The oldest known jellyfish, from 505 million years ago. Paleontology (古生物学) produces newsworthy discoveries.

Fossils (化石), moreover, provide direct evidence for the long history of life, allowing paleontologists to test hypotheses (假设) about evolution with data only they provide. They allow investigation of present and past life on Earth. Flows of biological diversity, appearances of new life forms and the extinctions of long existing ones, would go undiscovered without these efforts. But the headlines over exciting new fossils greatly underestimate the true importance of paleontology. Its real significance lies in how such discoveries brighten the grand history of life on Earth. From its beginnings, more than three billion years ago, to the present day, fossils record how life adapted or disappeared in the face of major environmental challenges.

Paleontologists provide us with a unique vantage on modern climate change. They play an essential role in interpreting ancient environments, in reconstructing ancient oceans, continents and climates. Fossils provide key limitation on the climate models that are essential for predicting future climate change. And the fossil record gives important insights into how life will respond to predicted future climate conditions, because these have occurred before in Earth’s history.

In addition, paleontology has provided a fundamental contribution to human thought: the reality of species extinction and thus of a world that has dramatically changed over time. In documenting the history of life, paleontologists recognized that many extinction episodes could occur suddenly, such as the event 66 million years ago that ended the dinosaurs. The search for the causes of past mass extinctions started pioneering studies from across the scientific spectrum (科学界), focusing on potential future threats to humanity.

Not only do paleontologists know what happens to life when things go bad, they also know how long it takes for ecosystems and biodiversity to recover from these disasters, which can take far longer than modern humans have existed.

Paleontologists thus provide a unique perspective on the nature and future long-term ecological impact of the current human-produced biodiversity crisis, the so-called Sixth Extinction, and therefore the importance of protecting modern biodiversity. The very concept of a Sixth Extinction would not exist without paleontologists documenting the first five.

Paleontologists know that understanding life’s past is critical to anticipating and adapting to life’s and humanity’s future. Paleontology is important because it brings its unique and critical perspective to current challenges in climate change, biodiversity loss and the environment. Paleontologists can predict the future because they know the past.

Group-Chat Culture Is Out of Control

For better or worse, we might be in the Age of the Group Chat. In a recent survey, most people said they felt stressed out by group messages, which can feel like a part-time job.

Connection is wonderful. Grexts, short for group texts, have the feature of imitating the casual back-and-forth of a dialogue, and the result can be more dynamic and fun than a two-person thread. Having a chat going also means you have a space to share your updates throughout the day, a reminder that you’re part of something.

Some researchers call this “ambient(周围的) virtual presence”: Even when you’re alone, you’re not alone. One researcher compares this phenomenon to echolocation(回声定位), the process that some animals, such as bats and dolphins, use to locate objects: They produce a continuous sound and use the resulting echo to sense their surroundings. Humans might use technologies such as group chats in a similar way—as a call-and-response, taking in information about their social networks and locating themselves within those webs.

But taking in too many signals can be overwhelming. Professor Bayer argued that group chats can create a “waterfall type of effect”, where messages keep flooding in and adding up. Eventually, you’re underwater. Another researcher suggested that different chat members all bring their own personalities, communication styles, and expectations for group norms. Without a standard etiquette (礼仪), people have varied opinions about what degree of responsiveness is required—which can cause real tension.

Grext anxiety is hard to resolve because it isn’t just about the group-chat or even mobile technology in general; it’s about the tension between being our own person and being responsible to others. Ultimately, most of us do want connection, even if it involves some duties.

8 . I was in my home office on a cold Sunday when I heard a quick knock on the door. I _____ downstairs, threw open the door and saw my dad _____ something wrapped up in paper in his arms. Strangely, he had given no hint (暗示) of it when we spoke on the phone last night.

“Open it.” he said.

I opened it to find a yellow begonia (秋海棠). It occurred to me that it was Mother’s Day.

“But···but I’m not a mother.” I said, _____.

My dad smiled, “Well, some special people aren’t mothers. but I think they _____ to get flowers, too.” With that, he hugged me and drove off.

Later, I called to thank him and we got to talking a lot. That’s when he let me in on his little _____. He had decided that he would challenge himself to do one act of _____ per day. It had started several weeks before when he accidentally knew a friend of his was having a rough day. He knew she loved ice cream, so he drove straight to her house with a huge tub of ice cream.

“She laughed _____ when she saw it,” he said, “It really delighted me to know that I had _____ her day.”

When asked why, he added, “I already know about the importance of being _____ in the moment. So, I try to be there with each person I am spending time with. I want them to feel important and believe in the goodness in people in that moment.”

I realized my dad was making a difference in people’s lives. ______, I also want to be more like my dad, who goes out of his way to make people feel loved and cared for.

9 . As higher education leaders dive deeper into the conversation on Digital Transformation and Education 4.0, they are also learning how to incorporate the Digital Twins realm concept into their curricula, because Digital Twin technology can serve the university of the future.

A Digital Twin is a virtual representation of a real object or system which is updated from real-time data and uses machine learning, simulation (模拟), and reasoning to help decision-making. In other words, a Digital Twin can create a highly complex virtual model which is the exact replica of a physical thing. Connected sensors on a smart campus can collect data in real time. This data is used to create a map onto the virtual model, thus creating a Digital Twin of a campus. When school administrators look at the Digital Twin, they can see crucial information about how the real campus is doing.

The applications for Digital Twin technology do not stop there. Students and faculty can benefit from using the technology as well. For example, hybrid classrooms have become more and more common nowadays. Digital technologies have accelerated the transition into the university of the future. Digital Twin technology, one of the trending technologies related to Industry 4.0, helps faculty create simulation models based on course requirements.

Digital Twin technology makes the ultimate immersive learning experience possible. By using a Digital Twin, students can learn highly engaging tasks which can be too dangerous, complex, or expensive for the classroom. Rather than hands-on laboratory dissection of a physical frog to learn animal science or having to wait for available human organs in the health science lah, medical students can use the virtual twin of an animal or human organs for their study.

The complexity of chemistry or microbiology requires students to be totally engaged. By using Digital Twins in a Virtual Reality simulated learning experience, faculty can achieve a maximum level of engagement helping each student learn abstract concepts in their own unique way and much faster. By running simulations, students can better explore system behavior under different conditions, understand failure and develop an understanding of system sensibilities as well as how changes in the system parameters (参数) and external disruptions make an impact on the results.

Some universities, such as Stanford and Copenhagen School of Marine Engineering, have incorporated Digital Twin technology into their teaching curricula, applying it to disciplines like architecture and engineering as they believe they are the reality of the industry. Overall, this enhances student motivation, accelerates understanding, and improves the overall learning experience. Moreover, the industry encourages universities to incorporate educational Digital Twins in automation to give students the initial understanding of tools and skills they will need in their future.

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