Everybody hates it, but everybody does it. A recent report said that 40%of Americans hate tipping. In America alone, tipping is a $ 16 billion-a-year industry. Consumers acting politely ought not to pay more than they have to for a given service. Tips should not exist. So why do they? The common opinion in the past was that tips both rewarded the efforts of good service and reduced uncomfortable feelings of inequality. And also, tipping makes for closer relations. It went without saying that the better the service, the bigger the tip.

    But according to a new research from Cornell University, tips no longer serve any useful function. The paper analyzes numbers they got from 2,547 groups dining at 20 different restaurants. The connection between larger tips and better service was very weak. Only a tiny part of the size of the tip had anything to do with the quality of service.

    Tipping is better explained, by culture than by the money people spend. In America, the custom came into being a long time ago. It is regarded as part of the accepted cost of a service. In New York restaurants, failing to tip at least 15% could well mean dissatisfaction from the customers. Hairdressers can expect to get l5%-20%, and the man who delivers your fast food $ 2. In Europe, tipping is less common. In many restaurants the amount of tip is decided by a standard service charge. In many Asian countries, tipping has never really caught on at all. Only a few have really taken to tipping. According to Michael Lynn, the Cornell papers' author, countries in which people are more social or outgoing tend to tip more. Tipping may reduce anxiety about being served by strangers. And Mr. Lynn says, “In America, where people are expressive and eager to mix up with others, tipping is about social approval. If you tip badly, people think less of you. Tipping well is a chance to show off.”

    The four best films in China in the first quarter of 2018

    Quite a few films both at home and abroad have brought a wave of heated discussions on the Internet in the first three months of 2018.

    If you're looking for some good films to see, here are some recommendations. While the subjects of these films are different，they all have fascinating storylines, a star-studded cast and thought-provoking themes. Let's take a look at them.

    Wonder

    Country: United States

    Release Date: Jan 19, 2018

    Genre: drama

    Starring: Julia Roberts, Owen Wilson, and Jacob Tremblay

    Director: Stephen Chbosky

    Recommendation Index: ★★★★★

    On the theme of “We all are different and want to be treated with kindness,” the film earns its tugs at the heartstrings. The movie was praised by audiences for hitting the soft spot as a heartwarming story that manages to avoid turning too sentimental.

    Forever Young

    Country: China

    Release Date: Jan 12, 2018

    Genre: drama

    Starring: Zhang Ziyi, Huang Xiaoming, Wang Leehom

    Director: Li Fangfang

    Recommendation Index: ★★★★

    The film, once planned as a tribute to mark the centenary celebrations of Tsinghua University in 2011, weaves four stories set in different eras to look at the history of the college.

    Secret Superstar

    Country: India

    Release Date: Feb 16, 2018

    Genre: musical drama

    Starring: Zaira Wasim, Aamir Khan

    Director: Advait Chandan

    Recommendation Index: ★★★★

    The film deals with social issues including feminism, gender equality and domestic violence. From Dangal to Secret Superstar to the latest comedy-drama film Bajrangi Bhaijaan, Indian films have developed a solid fan base in China.

    The Ex-File: The Return of the Exes

    Country: China

    Release Date: Dec 29, 2017

    Genre: romantic comedy

    Starring: Han Geng, Zheng Kai

    Director: Tian Yusheng

    Recommendation Index: ★★★

    The Ex-File: The Return of the Exes, the finale of the hit romance franchise produced by Huayi Brothers and New Saint Film Studio, revolves around bittersweet stories of two young businessmen who break up with their girlfriends. It is the first movie in 2018 that has achieved huge success at the box office.

    You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belyaev doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet. That's why he created Lampbrella, a lamp post with its own rain-sensing umbrella.

    The designer says he came up with the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy(伞蓬) built into a street lamp,” he said.

    The Lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand Sensors(传感器) then ensure that the umbrella offers pedestrians shelter whenever it starts raining.

    In addition to the rain sensor, there's also a 360°motion sensor on the fiberglass street lamp which detects whether anyone is using the Lampbrella. After three minutes of not being used the canopy is closed.

    According to the designer, the Lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lightning strike. Each Lampbrella would offer enough shelter for several people. Being installed(安装) at 2 metres off the ground, it would only be a danger for the tallest of pedestrians.

    While there are no plans to take the Lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department, and insists his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

    Most of us will be familiar with the traditional talent show set-up: thousands of hopefuls line up outside the audition（试音）room, wait for hours to go in and perform for a group of judges. Then these potential pop stars could be lucky and get through to the next round, or they might hear the command, "Sorry, it's a no from me. But what do the judges actually bring to a talent show?

    Music talent show judges attract millions of viewers each week to their programs. As public figures, they play an important part in advertising campaigns for these programs. They often receive high salaries and can be moody. Are they really worth the expenses and difficulties that they cause? One solution might be to replace them with computers.

    Can computers really match human judges? Scientist Dr Nick Collins and his team at the University of Sussex think they can. Dr Collins has been working on a project that involves programming three computerized judges that he says would be far more consistent in their judgment of musical performances. Employing a special programming language, Dr Collins's digital judges can be trained up by "listening" to particular musical styles. After they have been listening for a while, the programming language allows these judges to spot the specific features of the music, including the voice quality, the rhythm etc. Collins says, “The judges' listening capacity is not yet as good as a human ear, but they won't be as moody as some human reality TV show judges.”

    Maybe that is the problem with this electronic musical innovation. Real human judges on talent shows interest us with their personality, decisions and catchy phrases. Will a computer program be able to do the same?

    Slowly, so slowly that we never even noticed how it happened, our family stopped talking to each other. Our own worlds opened up to us through the computer or the cell phone or the CD player.

    Family Night was born when Mom called us for dinner. Jessica and I came and sat down. Dad loaded his plate and started to rise from the table.

    “Where are you going?” Mom questioned.

    “To the living room. I have some work,” Dad replied as he hurried away. Mom's face got tight, but she said nothing. About two minutes later, my cell phone buzzed. Jessica kept her earphones on during most of the meal. Mom was clearly upset.

    Family Night started the next week. Mom established three rules: no phones, no music, and no leaving the table. Everyone would eat together and play a game together “like a real family.”

    All seemed to be going according to Mom's plan until the first buzz of a cell phone. After dinner, we had been playing the board game for only ten minutes when another cell phone let out a shrill scream. This time the phone belonged to my father.

    “Work's calling. I have to answer,” he whispered as he hurried out of the room.

    Mom sighed, but she forced a smile and encouraged us to continue with the game. We kept playing through every interruption afterwards: the beeping of Jessica's phone, the buzz of another text message from Darnell, the soothing voice announcing the arrival of an e-mail on Dad's computer. When the game was over, Mom released us to our rooms.

    That first Family Night was not a success, but Mom soldiered on. Every Monday evening we silenced our electronics and gathered around the table; and each time, setting aside our technological toys became a little easier. The next two months my father would be taking business trips. We wouldn't be able to have Family Night every Monday.

    To my surprise I realized that I would miss those few hours each week when the house was filled with my family's laughter and conversation. I was also glad to know that when we really wanted to, we could silence the electronic buzz and just be a family again.

For the first time in Hong Kong's history, an entertainer has been written into middle school textbooks. He is considered one of the best actors in Hong Kong. Yes, he is Chow Yunfat.(周润发）

The example of his long hard struggle for success has been used in a chapter in a Hong Kong middle school textbook. Using his experience, students can learn to make the most of their time and to grab every opportunity to succeed.

On hearing about this, Chow said joyfully, "I really hope that my experiences can make young people understand that one should not be afraid of difficulties and setbacks(挫折), for they are the only way to success."

Indeed, Chow has travelled a long and difficult path to reach his success. In 1955, he was born into a poor family in Hong Kong. When he was 17, he had to leave school. He worked in a number of jobs—as a postman, camera salesman and taxi driver. These experiences paved the way for him to play all kinds of roles later in life.

Chow broke into the film industry in the late 1970s. He was one of the hardest working actors and starred in a number of popular TV dramas and films including "Shanghai Bund" (《上海滩》)and "A Better Tomorrow". Since 1985, he has won many awards including Taiwan's Golden Horse Awards and Hong Kong Film Awards.

In 1995, he went to Hollywood. Although he was already in his 40s, he had to learn English. He even put chopsticks （筷子）in his mouth to practise pronouncing（发音） certain sounds. His film, "Crouching Tiger, Hidden Dragon", began to gain him more fame and recognition around the world. In 1998, the mayor of Chicago set aside January 12 as "Chow Yunfat Day."