2 . People use laughter to connect and bond with others. It’s how we tell friends that we find their jokes funny, or how kids in a park show that they are having fun. Laughter is so important to humans, even if they belong to different cultures or speak different languages. What about animals? Scientists are studying if there is a connection between animals’ laughing and playing.

Sasha Winkler, from the University of California, Los Angeles (UCLA), studies biological anthropology (人类学)，including the study of animal behavior. She noticed that the small monkeys she worked with, liked to play together by chasing each other. While having fun together, they made panting (喘气) sounds, almost like they were out of breath, which reminded Winkler of their quiet laughter. This made Winkler wonder whether other animals did so while they were playing.

To find out whether other animals laugh and play, Winkler teamed up with another scientist named Greg Bryant, a professor and vice chair in the Department of Communication at UCLA. Together, they found and read dozens of reports written by other scientists who study animals. Winkler and Bryant looked for any mentions in any animal of sound signaling like the panting of the monkeys during their playing.

In April 2021, Winkler and Bryant published their findings in a science journal. Through their research, they identified 65 species or groups of animals, which laugh while playing. The animals that laugh the most include primates (灵长类) like monkeys and apes, rodents (啮齿动物) like rats, and mammals that live in the ocean like dolphins. Their work won’t only help us understand animals better but it could also help us understand how humans develop or change over time. Next, they will carry on more study to find more.

2024 is the Year of the Dragon in the Chinese calendar and it is the first time that the Oxford English Dictionary (OED)    1     (include) the term “Chinese dragon” in its dictionary. The Chinese dragon has two definitions in the OED, with the first one about its physical image and the second one on its figurative and allusive (典故的) nature.

Emperors in ancient dynasties were dressed in a Dragon Robe, a traditional silk-woven costume with dragon designs,     2     (symbolize) imperial power and authority. Jade Seals (玉玺), often     3     (carve) with dragons, also symbolize the authority of the emperor.

Contrary     4     the Western dragon, the image of the Chinese dragon, despite undergoing constant changes, has represented various’ positive     5     (quality) including prosperity, authority, strength and good fortune.

In ancient Chinese belief, dragons     6     (associate) with the control of the weather, particularly rain. The dragon’s ability to bring rain was seen as crucial for agriculture, which made it     7     positive symbol for the fertility of the land.

With the rising China Chic trend and the country’s booming cultural creative industry, the Chinese dragon in folktale is now     8     (common) seen in creative products such as tear-off calendars, dolls, dragon-themed jewelry as well as the “dragon blind boxes”     9     appeal to young consumers.

Whether it is through the hands of a national-level intangible (非物质) cultural heritage inheritor     10     the hands of a Generation Z “blind box” designer, the Chinese dragon carries forward the Chinese cultural spirit.

5 . 4 Most walkable cities in Europe

Seville in Spain takes the top spot as Europe’s most walkable city, offering the shortest walking route between the top four tourist attractions.Visitors can explore the impressive Plaza de Espana public square, before wandering over to the UNESCO-listed palace of Real Alcazar and Seville Cathedral. After that, it’s only a short trip on foot to visit the beautiful Barrio Santa Cruz neighbourhood.

Venice is well-known as a heaven for pedestrians (行人), so it’s no surprise it ranks as the second best location for walkable city breaks. There are endless alleyways to explore, as well as plenty of beautiful bridges over the crisscrossing canals that the city is famous for. Just under half an hour of walking here will take you on a tour of the impressive Grand Canal, Doge’s Palace, St Mark’s Square, Basilica and bell tower, all in only 1.3 miles.

Nestled along Portugal’s picturesque coast, Porto comes in third with its top attractions all covered by a 30-minute walking route. Meander along the Dom Luís I Bridge over the Douro River, head to the Clérigos Church Bell Tower and enjoy a riverfront walking place along the Cais da Ribeira. The Stock Exchange Palace is also just a short walk away.

Florence, Italy, secures its place as the fourth most walkable city in Europe thanks to its stunning attractions that can be seamlessly explored on foot. A 1.6 mile route covers the awe-inspiring Piazzale Michelangelo; the famous Uffizi Gallery; the Piazza del Duomo where you will be amazed at the magnificent Florence Cathedral; and the Galleria dell’Accademia, home to Michelangelo’s masterpiece, the statue of David.

Mario Loutef had little sleep over the four days leading up to Saturday, when he piled his     1    (ruin) belongings in the street outside his home in Princeton, B.C. A large part of his community     2    (destroy) when the Tulameen River overflowed (漫过) its banks,     3    (flood) homes and forcing people to evacuate. The community still remains on an evacuation alert (戒备状态) but for many, like Loutef, the damage couldn’t get any     4    (bad).

A thick coat of black earth has covered everything on the     5    (one) floor of Loutef's home. He has been working around     6     clock since he was allowed access. Boards have been torn off walls, on     7     a dirty line about 2 meters up shows how high the water rose.

Loutef's     8    (lose) was great. “I almost lost everything. I don't know where to start. I don't know where it's going to end,” said Loutef, who has lived in the home for the past four years.

Loutef is working alone but Lisa Brosseau has got some help. Many     9    (resident) of Princeton are going from house to house offering a hand to those     10     are in need.

The World Health Organization (WHO) has announced a shocking finding about the air we breathe. It has found that almost everyone on Earth breathes unhealthy air. The WHO made     1    (it) air quality update ahead of World Health Day on April 7. The update reported that 99 per cent of the world’s population breathes air     2     goes beyond WHO air quality limits. It looked at data from over 6,000 cities in 117 countries. People     3    (live) in lower- and middle-income countries breathe the poorest-quality air. Millions of people die in these countries because of pollution-related diseases. The WHO said: “After surviving a pandemic, it is unacceptable to still have 7 million preventable deaths due     4     air pollution.”

The WHO said its report highlighted the need to move away from fossil fuels. It asked governments to do more     5     (reduce) levels of air pollution. It said: “Current energy concerns highlight the importance of speeding up the transition to cleaner and     6    (healthy) energy systems.” It added that high gas prices, energy     7    (secure), the dangers of air pollution, and climate change mean the world must be less dependent on fossil fuels. The WHO report     8    (include) many recommendations for change. One of these is     9     use of clean energy for cooking, heating and lighting. Another is to “build safe and affordable public transport systems and pedestrian- and cycle-friendly     10    (network)”.