You are a new manager at the American branch of your German firm in Chicago. With a few minutes to spare between meetings, you go to get a quick cup of coffee.

    “Hey, David, how are you?” one of the senior partners at the firm asks you.

    “Good, thank you, Dr. Greer,” you reply. You've really been wanting to make a connection with the senior leadership at the firm, and this seems like a great opportunity. But as you start to think of something to say, your American colleague breaks in to steal your spotlight.

    “So Arnold”, your colleague says to your boss, in such a casual manner that it makes your German soul cringe(畏缩), “So what's your Super bowl prediction? I mean, you're a Niners fan, right?”

    The conversation moves on, and you walk silently back to your desk with your coffee. You know how important small talk is in the U.S., and you feel jealous of people who can do it well.

    There's nothing small about the role that small talk plays in American professional culture. People from other countries are often surprised at how important small talk is in the U.S. and how naturally and comfortably people seem to do it — with peers, men, women, and even with superiors. You can be the most technically skilled worker in the world, but your ability to progress in your job in the United States is highly dependent on your ability to build and maintain positive relationships with people at work. And guess what skill is critical for building and maintaining these relationships? Small talk.

    What can you do if you are from another culture and want to learn to use small talk in the U.S. to build relationships and establish trust? Work hard to hone(磨练) your own version of American-style small talk. Watch how others do it. You don't have to mimic what they do; in fact, that would likely backfire because people would see you as inauthentic. But if you can develop your own personal version, that can go a long way toward making you feel comfortable and competence．

    Mobile technology has created new ways for all types of learning styles to help discover new information. If you want to teach yourself things, here are some apps that will help you.

    Coursera

    Perhaps one of the biggest advancements in the history of e-learning, Coursera has teamed up with top school like Duke, Stanford, and John Hopkins to bring you direct access to real college courses in psychology, computer science, business, and technology. Each course features pre-recorded videos, projects, and quizzes, just like you'd receive inside the classroom.

    Lumosity

    This app features three-day sessions that target many different areas of brain activity: memory, speed, problem solving, and thinking flexibility. Each day you can participate in a timed session to sharpen mental intelligence and keep track of your progress over time.

    Duolingo

    If you've ever wanted to learn a new language but didn't know where to start or couldn't afford expensive apps, you need to check out Duolingo. This app teaches more than a dozen languages by breaking up exercises into mini games. The developer of Duolingo claims that 34 hours of learning in this app equals a full term's worth of school.

    EarthViewer

    Ever wonder what Earth looked like a million years ago? There's no better way to know than to look for yourself. Earth Viewer takes you on a digital journey to see how the landscape(地貌) and face of the planet has developed over the past 4.5 billion years, and view climate changes, sea level adjustments, or the evolution of famous cities.

    When one of your car tires goes flat, there are two things you can do, you can complain and change it or, if you don't have a spare, stand helplessly beside the road and hope someone comes to your rescue. Now comes a third choice, called Quickwheel. It is designed to get disabled motorists rolling again as quickly as possible.

Quickwheel is basically a tiny emergency trailer—complete with three tough little wheels of its own-- that supports the flat tire and enables the motorists to drive to a service station without losing much time or expending much energy. The product is made in the US. Company, Quickwheel Inc. of Greenwich, Connecticut. According to the firm's president, Robert Bockweg, the product meets each of the major worries that customers relate with flat tires: safe, lost time and physical labor.

    To use it, motorists simply unfold the product to its fully extended position, set it in front of the disabled tire, drive the car onto the Quickwheel's ramp (斜板) and fix a special safety strap over the tire. The tire is then locked in Quickwheel's metal frame. Its three wheels do the rest of the work. According to Quickwheel Inc, its product can be driven “for miles” at the speed of up to 45 miles per hour “without any noticeable change in the vehicle's braking or steering operation”. The company also says that it can be used on just about any type of car, jeep, mini-van or trailer. (拖车)

    Bockweg says that Quickwheel will be sold first in the United States, at a price of 150 dollars. Sales agreements now being talked over should make the product ready for use in Japan, Canada and Western Europe in the near future.

    California has become the first U.S. state to approve plans to require newly-built homes to include solar equipment.

    The state's Energy Commission voted 5-0 to approve the new rules, which are to take effect in 2020. The rules will deal with most newly-built residential (住宅的) buildings up to three stories high.

    The move is California's latest step aimed at reaching renewable energy targets and reducing greenhouse gas emissions.

    California has set a goal of filling half of its electricity needs with renewable energy by 2030. Officials said they had reached 30 percent by the end of 2017. The state's Governor, Jerry Brown, plans to hold an international climate meeting in September.

    ①The Energy Commission said the cost of adding solar equipment to a single-family home would be about $9,500. But, the group added that homeowners would save at least $19,000 in energy costs over 30 years.

    Robert Raymer is the technical director for the California Building Industry Association. He says the action is a step forward for the wider use of solar power in the U.S. "You can bet every other of the 49 states will be watching closely to see what happens," he told the Associated Press.

    ②Solar companies praised the new requirements, which officials have said will likely raise demand for solar equipment in California by 10-15 percent.

    The Solar Energy Industries Association called it a "historic decision for the state and the U.S." It estimated the action would produce "huge economic and environmental benefits," including bringing tens of billions of dollars into California.

    ③Some legislative and community leaders argued that Californians cannot afford to pay any more for housing in what is already an extremely high-priced market.

    "That's just going to drive the cost up and make California, once again, not affordable to live in," said California Assemblyman Brian Dahle.

    ④Severin Borenstein is an energy economist at the University of California, in Berkeley. He sent an email to the head of California's Energy Commission to urge the state to reconsider its decision.

    He expressed his belief that it is a mistake for California to approve such a policy instead of centering on efforts to develop large solar farms to produce renewable energy. He said these farms would cost much less to operate.

    "Every energy economist I know is shaking their head at this," he told the Wall Street Journal. "In many ways, this is setting the wrong example," he added.

Drinks Have No Wings

    You may have heard that "Red Bull gives you wings". But while most people take the advertising slogan as a metaphor(隐喻), some Americans seem to have taken it very seriously.

    Benjamin Careathers had been drinking the drink for 10 years, expecting to at least feel more energetic, but nothing happened. Feeling fooled by the ad, he took the issue to court.

    In October, the Austria-based company agreed to pay $ 6.5 million (39.7 million yuan) to customers who have bought the drink since 2002. People in the US can apply for a share through energydrinksettlement.com before March 2015.

    But is the case really that ridiculous?

    Red Bull said they had done nothing wrong and they only paid the money to save the cost and trouble of legal action.

    However, the suit(诉讼) told a different story. Even though there is no evidence that Red Bull energy drinks provide more benefit for consumers than a cup of coffee, the company markets their products as a superior source of energy that costs little.

    "Such conduct means that Red Bull's advertising and marketing is not just 'puffery' (吹捧) but is misleading and therefore actionable (可诉讼的) ," the suit said.

    The company said that the drink could promote healthy joints and reduce the risk of eye diseases. However, according to the organization, the product contains a lot of sugar, which could actually lead to many health problems.

    Coca-Cola agreed to pay $ 1.2 million in compensation in July. But to fully stop the company from linking the drink to health benefit, Truth in Advertising, another non-profit organization, took the issue to court again in late October.

    False advertisements have become a common problem around the world. China changed its consumer rights last year to ban advertising companies and media from making or publishing false advertisements. Celebrities are also made responsible if they endorse (代言) false or substandard products.

    Everyone should be so lucky as to have a friend like Francia Raisa. On Thursday, singer and actress Selena Gomez, 25, used Instagram to explain why she was "laying low" this summer. She posted a photo of herself in a hospital bed with her friend Francia Raisa holding hands. She said she recently received a kidney transplant from her best friend because of complications(并发症) from lupus(狼疮), an autoimmune disease, which means it is the result of the immune system attacking normal tissue, including the kidneys, brain, heart and lungs.

    People with lupus may first experience tiredness, joint pain or a little bit of rash(皮疹) on their bodies and can go for a long time before their doctors realize it is more serious. Many people see two or four doctors before the real problem is picked up. According to Dr. Kyriakos Kirou, roughly a third to one-half of people with lupus develop kidney disease, and up to one in five of them will eventually need a transplant, sometimes because they weren't treated with effective drugs to prevent the immune system from attacking the kidneys. Though Gomez said that she was "very well now," she warned about the dangers of not taking medical diagnoses seriously, like she initially did.

    Her Instagram post also called attention to two major health topics: the need for living organ donators and the fact that Gomez represents three groups more likely to be diagnosed with lupus and lupus-related kidney disease. Nine out of 10 people diagnosed with lupus are women, and most develop the disease between the ages of 15 to 44. And lupus is two to three times more common among women of color, including Hispanic women, according to the Lupus Foundation.

    Raisa is Latina, and Gomez's father is of Mexican origin. While it's not essential that the organ donator and receiver be of the same ethnicity, people who share a similar background sometimes are better matched, according to data from the United Network for Organ Sharing.