The Verizon Innovative App Challenge gives kids a chance to create apps that can solve problems in their community.

    Do you want to make a difference in your community? The Verizon Innovative App Challenge can get you started. The first step is to think of a problem in your community. The next step is to create an app that can solve the problem.

    Groups of five to seven students in middle school or high school, led by a teacher, can enter the contest. First, teams compete on a local level. Teams that make it to the next round receive $5,000 for their schools. Finalists present their app ideas to judges in a live webinar (网络研讨会)．

    Next, the judges pick national winners. The top eight teams receive an additional $15,000 for their schools, and each team member receives a Samsung tablet. Plus, the winning teams get the chance to bring their app to life.

    A group of six girls from Los Fresnos, Texas, won the second annual Verizon Innovative App Challenge. They came up with the Hello Navi app concept, short for “hello navigation”. The app was designed to help visually­impaired (视力受损的) students navigate their school by using an internal compass and voice­over technology. Read more about the team in September 19, 2016 issue of TIME For Kids: Edition 3－4.

    Do you have an app idea that could help solve a local issue? The deadline to register is November 24, 2016. Find more information and register your team at www. verizonfoundation. org/appchallenge.

    Here are some tips from the Verizon Foundation to get you started：

•Get your team together for a brainstorming meeting. Write out all the ideas that come to mind.

• Don't ignore challenges. Think of the problems that exist in your community.

•Ask family, friends, and people in your community to share their thoughts about problems that they want to see solved.

    While it's wonderful to share a special trip with friends or family, traveling alone is another experience. {#blank#}1{#/blank#}

1）. Meet new people.

    People who are traveling alone seem more approachable to others. Before you know it, you could be chatting with some interesting folks at a sidewalk cafe or even joining a group of like-minded people on the beach. {#blank#}2{#/blank#}

2）.Do everything you want and nothing you don't want.

    Have you ever been hesitant to do that half-day at the spa you are eager for because you feel bad leaving your travel partner with nothing to do? {#blank#}3{#/blank#} If you want to “waste” the day sitting at an outdoor bar drinking a cocktail instead of sightseeing, you won't have to answer anyone.

3）.{#blank#}4{#/blank#}

    If traveling makes you a good, smart person, then traveling alone makes you better and smarter. Taking a trip by yourself might seem frightening. However, once you take the courage and get over your fears, you'll feel a sense of energy. A successful single vacation can inspire you to try new things in life.

Great service.

    For some reason, service at hotels and restaurants seems better when you're traveling alone. {#blank#}5{#/blank#} And it's possible that when you make it known, you could be offered a better room or a free cocktail.

A.The key is to keep an open mind and keep safety in mind.

B.Travelling  alone makes you truly listen to your inner thoughts.

C.When you travel alone, you don't need to please anyone but yourself.

D.Here are four good reasons why you should try it.

E.It is refreshing.

F.Cheering up.

G.People tend to admire those who travel alone.

Senses That Work Together

    When we think about how our senses work, we usually imagine them operating separately: you sniff a flower, and the smell is delivered uninterrupted from nose to brain. However, it's more complex than that. Most evidence for cross-modal perception (知觉) comes from studies into sound and vision (视觉). But research that shows other senses crossing over is coming out all the time, and it seems that even sound and smell sometimes form an unlikely pairing.

    When New York researchers, Daniel Wesson and Donald Wilson, tried to find out the truth about a “mysterious” area of the brain called the olfactory tubercle (嗅结节)，they had to deal with this fact. Originally, they only intended to measure how olfactory tubercle cells in mice responded to smell. But during testing, Wesson noticed that every time he put his coffee cup down with a clunk (哐啷声)，the mouse cells jumped in activity. In fact, the olfactory tubercle is well-placed to receive both smell and sound information from the outside world. Later they found that among separate cells, most responded to a smell but a significant number were also active when a sound was made. Some cells even behaved differently when smell and sound were presented together, by increasing or decreasing their activity.

    Of course, mice aren't people, so research team has been carrying out further experiments. They pulled together a group of people and gave them various drinks to smell. Participants were asked to sniff the drinks, and then match them to appropriate musical instruments and produce the notes at different levels. The results were interesting: piano was regularly paired with fruity fragrances; strong smells sounded like the instruments that are made of metal.

    Further research found that listening to different sounds can change your perceptions. Studying taste this time, the team ordered some special toffee (太妃糖)and put together “soundscapes” corresponding to bitterness and sweetness. Participants tasted similar pieces of toffee while listening to each soundscape, and found the toffee more bitter or sweeter, depending on which soundtrack they were listening to.

    Studies like this are helping scientists correctly describe our understanding of the senses, and how the brain combines them with its advantage. The consequences are worth considering. Could we see musicians work together with chefs to produce sound-improved food and drink? Will you be ordering a coffee with a soundtrack to bring out your favorite smell? Come to think of it, that could be one thing you hope coffee shop chains don't get round to.

    Pop music is the name for different forms of popular, commercial (商业) music. It had its beginning in the USA and spread throughout the whole world during the 1950s and 1960s. It is widely liked by the young people. The best known early form of pop music was “rock' n' roll”; another was “blues”. A more recent development is “folk-rock”.

    Pop music has taken the place of native music in many parts of the world; it has caused the number of people for jazz to become much smaller than it was in the 1950s and earlier, and it has now begun to rule musical stage productions. It's a big industry. Much pop music is without artistic value, but the work of some pop singers, e.g. the Beatles, Bob Dylan, the groups like Floyd and Crosby, Stills and Nash, is on a higher musical level. And there is still a great interest in it today. Pop music concerts and festivals take place all over the world.

    FOR ALL the technological wonders of modern medicine, from gene-editing to fetal(胎儿的) surgery, health care—with its fax machines and clipboards(资料夹)—is often stubbornly old-fashioned. This outdated era is slowly drawing to a close as, slowly, the industry catches up with the artificial-intelligence (AI) revolution. And it should have happened earlier, argues Eric Topol, a heart doctor keen on digital medicine.

    Dr Topol's vision of medicine's future is optimistic. He thinks AI will be particularly useful for repetitive tasks where errors arise easily, such as selecting images, examining heart traces for abnormal symptoms or recording doctors' words into patient records. In short, AI is set to save time, lives and money.

    Much of this is imaginary—but AI is already defeating people in a variety of narrow jobs for which it has been trained. Eventually it may be able to diagnose and treat a wider range of diseases. Even then, Dr Topol thinks, humans would watch over the rules, rather than being replaced by them.

    The author's fear is that AI will be used to deepen the assembly-line(流水线) culture of modern medicine. If it awards a "gift of time" on doctors, he argues that this additional benefit should be used to extend the time of consultations, rather than simply speeding through them more efficiently.

    The Hippocratic Oath holds that there is an art to medicine as well as a science, and that "warmth, sympathy and understanding may be more important than the surgeon's knife or the chemist's drug". That is not just a cliché: the patients of sympathetic physicians have been shown to do better. As Dr Topol says, it is hard to imagine that a robot could really replace a human doctor. Yet as demand for health care goes beyond the supply of human carers, the future may involve consultations on smartphones and measurements monitored by chat robots. The considerately warmed stethoscope(听诊器), placed gently on a patient's back, may become history.

    Whenever I talk about personality (个性) in relation to choosing a career, someone always complains like this: those tests are so stupid. When I was in the sixth grade, I took one of them and it said that I should be a farmer. While I don't think I would be a very good farmer, the results are probably a lot more accurate (准确) than I'd like to admit. At the time, it seemed ridiculous­I hated the outdoors and physical work, and was particularly sick of being dirty or sweaty. Now, though, as I think in terms of personality, it might have had something to do with my personality: I like long­term planning, working by myself, and being the master of my own fate.

    Personality tests are various, and some are complete nonsense. Be careful of any personality test that claims to be capable of concluding what your dream job is from your favorite food for breakfast, or by the type of animal you like best. While there are many personality assessments (评估) that are very accurate, I'd love to say that they are a second (and often expensive) step. The best choice is to find out about yourself for yourself.

    Before determining the ways to examine your work preferences, it's important to know the difference between liking a topic and liking the work. I once had a young guy who was a third­year marine (海洋的) biology student at a large state school in Ohio. He applied for and was placed into the Whale Watch program, where he found out that he became terribly seasick on any kind of boat­a big disadvantage for a student who thought he wanted to study whales in the wild.