2 . If you can’t trust an expert to make a good prediction, who can you trust?

Try a crowd. Under the right conditions, crowds can make better predictions than the individuals in them-a crowd can even beat a single expert.

More than a hundred years ago, the scientist Francis Galton visited an English country Faithere, he came across a contest to guess the weight of an ox. Interested in mathematics, Galton gathered 800 guesses and dealt with the numbers. To his surprise, Galton found that the crowd’s guess (the average) was just 1 pound different from the ox’s real weight. Did Galton happen to collect a lot lucky guesses?

David Kestenbaumand Jacob Goldstein, a pair of reporters, wanted to find out. One steamy summer day in 2015, they visited the “Burlington County Farm Fair” in New Jersey. There, Penelope, a black and white cow, shining with good health, greeted them. She was as tall as Goldstein’s shoulder. The reporters led the cow onto a large, flat truck scale (秤). A curious crowd had gathered, but Kestenbaum and Goldstein carefully guarded the scale’s digital display (数字显示), It flashed 1, 355 pounds.

Later, far from the sweet smell of warm hay, the reporters uploaded a photo of Penelope to the Planet Money website. They invited people to guess her weight, and more than 17, 000 people did. The crowd’s guess was 1, 287 pounds. That was just 5 percent less than Penelope’s true weight. Impressive!

Among the crowd, some called themselves cow experts, while others probably couldn’t tell a cot from an ox. When Goldstein and Kestenbaum calculated the guesses only from the experts, the result wasn’t any better. In fact, it was even worse:83 pounds off for the experts compared to 68 pounds for the whole crowd.

Crowds aren’t just lucky. Lots of people with different bits of information and ideas can make crowds collectively smart. A crowd will always make a prediction at least as good as the typical person in it. Often a crowd will do better. If people in a crowd have reasonably good information, they can make excellent predictions. Some businesses, financial markets, and Internet searches rely on this phenomenon (现象).

If you want to predict who’s going to win the big game on Saturday or when school buses will fly, ask a crowd of reasonably knowledgeable people instead of a single expert. Just make sure the crowd has people who know different things and have different ways of thinking. Without a diverse crowd, predictions can go badly.

3 . Movie stars might think their lives are private after leaving the acting location, but they ought to know that they have much power over their audience. The power gives them an ability to change people, events, even history, making them to have the responsibility of being good role models.

With time going on, movie stars become celebrities (名人) and in the process get a large number of fans. Some of them follow their deeds, dress, and act like them. In reality, they want to be like their favorite movie stars. If a movie star engages in acts that the society does not approve, those who look up to them, especially the teens, will do the same. Movie stars should be responsible for what they do and say as following the actions is now simpler because of social media. It is important to behave like a role model even when they think no one is watching.

Nobody is perfect, and movie stars also have had their down moments. They may not have been good role models at the time, but they can change the narrative by doing the right things. They can also turn the past shortcomings into positives by opening up about problems and how they overcame the challenges. And their audience can learn to discuss their problems and seek help.

People starring in movies are the target of companies to promote their products or services for a fee. Their celebrity status is a reason enough to think beyond the payment. A movie star should not recommend something that will influence the way teens live negatively. It would be wrong to promote something like sweetened drinks or foods without health benefits. Movie stars face problems like other people, but because of their influence, they have a responsibility to be role models in the public eye.

5 . A recent study reveals about 68 percent of Gen Z adults and 20 percent of millennials (千禧一代) are choosing to remain with their families. This represents the largest generational shares among all age groups. Furthermore, the study estimates that 51 million individuals are currently living in multi-generational households.

What’s perhaps more surprising is that these young adults don’t anticipate leaving their for at homes. Both millennials (47%) and Gen Zers (41%) expect to continue living with their families for at least another two years. So what are the reasons behind young adults staying at home?

The reasons behind young adults staying at home are diverse but mainly come down to financial or health-related circumstances. The data suggests that the average millennial, living with a family member at the age of 32, shares their home with three or four other people. Many of them work in food services, construction, or education.

Compared to previous generations, millennials are slower to leave the nest, with 18 percent of baby boomers and 17 percent of Gen X having lived with their parents at the same age as today’s millennials. Several other factors could also explain this generational difference. Younger generations may find it financially advantageous to stay with family to economize on expenses such as childcare, electric bills, rent, or future down payments. Additionally, the increasing number of Millennials and Gen Zers choosing to care for family members may contribute to this trend.

When it comes to the areas with the highest percentages of multigenerational households, Los Angeles stands out, with 35 percent of its millennials and 81 percent of Gen Z residents still living with family members. The high living expense of living in this big city, which is 51 percent above the national average, makes it difficult for young adults to struggle on their own. California’s Riverside area with 35 percent of millennials and 85 percent of Gen Zers remaining at home follows closely while New York rank the third place, with 28 percent of millennials in the Big Apple living in multigenerational households.

8 . Why Do Millennials (千禧一代) Keep Changing Jobs?

Millennials have been labelled as the “job-hopping generation”. In fact, a recent survey showed that 49% of millennials would leave their job within the next two years! Observers from older generations may think it is caused by the youth’s laziness. However, if we search deeper, there is more than meets the eye.

Instead of the traditional and practical reasons of changing jobs, such as to get better salaries or greater job stability (稳定), many millennials are inspired by value-driven goals. For example, more have to seek new opportunities whenever they lack a sense of belonging in their present jobs. Additionally, some also leave their positions for companies which better suit their value system. Therefore, it is clear that many millennials do not only consider their jobs as a source of income, but in fact, seek meaning and professional achievement in their daily jobs.

Clearly, the fearlessness of millennials in seeking job opportunities has been inspired by new business models. With the rise of online platforms, millennials who prefer work-life balance and flexibility have been attracted towards such jobs. Moreover, the increase of social media has also created more career paths. From food and travel bloggers to YouTube content creators, more millennials are leaving boring desk-bound jobs to look for more untraditional, but certainly attractive, careers.

However, people have different opinions on job-hopping. While some employers value rich experience and skills that job-hopping brings about, many of them still look down upon job-hopping. Some even argue in disappointment that the youths of today are lazy, unable to bear hardships and too self-centered.

The former American President Jimmy Carter once said, “Human identity is no longer defined (定义) by what one does but by what one owns.” Indeed, his comment still rings true today. Rather than allow traditional models of success in society to define our youths, the millennial generation should be encouraged to define new horizons of success by making the right career choices guided by the right values.

Venice, one of Europe’s most historical, romantic, and unique cities, is in danger of drowning — not in one of its famed canals but under the weight of people. Since 1980, there have been more tourists than residents in Venice and right at present the number     1     (climb) rapidly. As tourists arrive, so do businesses to support them. Small, local stores are being replaced by souvenir shops and fast-food joints; Lately, accommodations     2     (transform) to Airbnbs, driving the cost of living here forever upwards. As locals leave the city, the vacuum (真空) is filled with yet     3     (much) tourist investment and before you know it, the charm and culture of old Venice that attracted us here in the first place has been transformed and lost. It’s no wonder that     4     World Heritage Committee has made a plan to add “Venice and its Lagoon” to its World Heritage in Danger list.

Venice is not alone. Croatian favourite Dubrovnik, with history and cultural excellence, is suffering the same fate. There were 5,000 residents in 1991, but in 2017 only 1,157 people were living in the Old Town     5     it became overcrowded with tourists and businesses flooding to them. Dubrovnik is a convenient stop for cruise ships moving around the waters of the Adriatic and its popularity has grown further following the success of Game of Thrones,     6     was filmed there.

Many popular locations have started to apply strategies     7     (fight) the rising tide of tourism using a combination of legislation and financial instruments. Barcelona is limiting the number of licenses for tourist accommodation     8     reducing the number of cruise ships allowed to dock (停泊). A smaller number of tourists are allowed to visit the Old Town and     9     will need to pay a city entry fee. The tourist tax is being increased to a price higher than     10     (expect). Venice has recently introduced a tourist fee to discourage day-trippers.

In a specially designed studio theater in Hangzhou, New Dragon Gate Inn, a traditional Shaoxing Opera performance    1    (bring) to life. Recreated from the 1992 film of the same name, the opera presentation shows amazing artistic performance, successfully attracting the interest of younger    2    (generation) by mixing traditional Chinese opera with modern theater models and dramatic (戏剧性的) ideas.

    3    (compare) with traditional stages, the theater is designed as an inn,     4     the audiences becoming guests. The audience sits very close to the actors and actresses, offering them     5    unique and fascinating viewing experience. Upon leaving the theater, these audience members feel a sense of satisfaction that drives them to willingly share short clips of the performance online,     6    (promote) its popularity.

As the play gains popularity in the past weeks, Chen Lijun,     7    plays the important supporting role of Jia Ting,     8    (become) a social media hit. She said this show represents one of the     9    (challenge) skills in the opera world. It tests not only the physical strengths, vocal skills, and acting abilities of actors and actresses    10    their willpower and determination.