Many young students consider their friends as the most important people in their lives. They believe that their family members, especially their parents, don't know them as well as their friends do. In large families, it is often for brothers and sisters to fight with each other and then they can only go to their friends for advice. It is very important for young students to have one good friend or many friends. Even when they are not with their friends, they usually spend a lot of time talking among themselves on the phone. This communication is very important in children's growing up, because friends can discuss something difficult to say to their family members.

    However, parents often try to choose friends for their children. Some parents may even stop their children from meeting their good friends. The question of “choice” is an interesting one.

    Have you ever thought of the following questions?

    Who chooses your friends?

    Do you choose your friends or your friends choose you?

    Have you got a good friend your parents don't like?

    Archerfish(射水鱼), a species famous for spitting (吐) water to shoot insects out of the air, can recognize one human face from another.

    In the laboratory, instead of shooting insects, the fish were taught to spit at pictures of human faces showed on a computer screen outside their aquarium. The fish were first introduced to two faces, and taught to spit at one of them in exchange for a food reward. The researchers then tested whether the fish would recognize and spit at the face they had learned from among 44 new ones. And they were right more than 80% of the time.

    To the researchers' surprise, even when they did that with faces that were in black and white, the fish were still able to find the face they were trained to recognize.

    Telling one human face from another is a surprisingly difficult task. As we all have two eyes above a nose and a mouth, doing so depends on recognizing some extremely small differences.

    “It has been supposed that this task is so difficult that it can only be completed by higher animals, which have a large and complex brain,” said Newport, whose study was published in the journal Scientific Reports. “But the archerfish were able to do this without having a neocortex, the most recently developed part of the brain. In humans, the neocortex governs our sense and language.”

    “Fish have a simpler brain than humans and they don't have the section of the brain that humans use for recognizing faces,” Newport said. “Even though, many fish show amazing visual (视力的) behaviors and therefore make the perfect subjects to test whether simple brains can complete complex tasks.”

    Regardless of how far we'd like to believe gender（性别）equality in the workplace has come, there's still a yawning gap between male and female leaders in the professional world. A 2018 statistic shows that women nowadays hold just 5.8 percent of CEOs positions at S&P 500 companies, according to Catalyst.

    While it's not a huge shock that women are somewhat underrepresented in leadership positions, what is surprising though, is the fact that females may actually be better suited to lead in almost every area, at least according to new findings from the BI Norwegian Business School.

    In their research, Professor Oyvind L. Martinsen and Professor Lars Glas surveyed (调查) 2,900 managers with a special focus on personality types. The results were clear: Women scored higher than men in four of the five major leadership-centric categories.

    While some people believe that men inherently make better leaders — probably because they picture a leader with a commanding voice, which is more typical of men than women — this piece of research suggests that women are better at methodical management and goal-setting, openness, sociability and supportiveness, as well as ability to communicate clearly.

    There was one area in which men scored higher than women, though, and that was on emotional stability and ability to face job-related pressure and stress. The results suggest that women are more sensitive to the effects of high-pressure or highly emotional situations.

    Obviously, it's important to consider individual (个人的) differences. Anyone, regardless of gender, may be an inspiring leader and a competent boss. But next time you're hiring for a management position, you just might want to give the resumes (简历) from female candidates a harder look.

In 2019, after retiring from her career as a social worker, Ane Freed-Kernis decided to build a home workshop and devote all of her free time to stone carving. "I might be covered head to toe in dust but I'm happy—it was something I needed more of in my life when I hit 60," she says.

This appeal has its origins in Freed-Kernis' childhood. Growing up on her father's farm in Denmark, she used to wander through the fields with her eyes fixed on the ground, looking for stones to add to her collection. "I've always been drawn to the shapes and textures（质地）of stones," she says.

After moving to England in 1977 and training as a social worker, Freed-Kernis soon became occupied with her busy career and the demands of raising her son. Stones were the last thing on her mind, until her father died in 2005. "He took a stone carving course in his retirement, and I always thought stone seemed so fun but never had the time to look into it myself," she says. "After he died, I became determined to learn in his honour."

Signing up for a week-long stone carving course at Yorkshire Sculpture Park, Freed-Kernis began to learn how to turn a block of rock into well-designed shapes. "It was really scary at the start because you would spend hours just hammering（锤打）."

Now 65, Freed-Kernis has a thriving small business built largely through word of mouth. She creates 12 to 15 pieces a year that can take anywhere from a few days to three weeks to complete, while her prices range from £200 to £3, 000. "I'm making smaller ones," she says. "I don't have to depend on the money much, so I want to keep prices in the range that people can afford, mainly just covering costs and labour（劳动力）."

Start of Summer, the 7th term of the year, begins on May 6 and ends on May 20 this year. It signals the transition of seasons. Here are four things to learn about it.

Greeting Start ofSummer

The term Start of Summer originated at the end of the Warring States Period. Since it is a crucial time for the harvest of summer crops, ancient Chinese emperors in different dynasties attached great importance to the Start of Summer.

CheckingOne'sWeight

The custom of weighing people at the Start of Summer originated from the Three Kingdoms Period and prevails in South China today. It was believed this practice would bring health and good luck to the people weighed. It is said those who were weighed would stay healthy in the hot summer and those who weren't would suffer illness.

EatingEggs

In ancient China, people believed a round egg symbolized a happy life and eating eggs on the day of Start of Summer was a prayer for good health. They put leftover tea into boiled water together with eggs. Later people improved cooking methods and added spices to the eggs to make them taste delicious. Today tea egg has become a traditional snack in China.

Taking Care of theHeart

According to Chinese traditional medicine, Start of Summer is a key time to moisten the heart. When the weather grows hotter, dampness and heat can affect human health. Food rich in vitamins and cool in nature is highly recommended. Vegetables, such as cucumber, tomato, and watercress and fruits like watermelon, pear and strawberry are top recommendations.