A student is learning to speak British English. He wonders: Can I communicate with Americans? Can they understand me? Learners of English often ask: What are the differences between British and American English? How important are these differences?

    Certainly! There are some differences between British and American English. There are a few differences in grammar. For example, speakers of British English say “in hospital” and “Have you a pen?” Americans say “in the hospital!” and “Do you have a pen?”. Pronunciation is sometimes different. Americans usually sound theirs in words like “bird” and “hurt”. Speakers of British English do not sound theirs in these words. There are differences between British and American English in spelling and vocabulary. For example, “color” and “honor” are British, “color” and honor” are American.

    These differences in grammar, pronunciation, spelling and vocabulary are not important, however. For the most part, British and American English are the same language.

    Sports shoes that work out whether their owner has done enough exercise to warrant(保证；授权) time in front of the television have been invented in the UK.

    The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter(传话器) passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day's efforts.

    The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University to London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to deal with that with my design.”

    Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.

    Swan calculated how exercise should translate to television time using the recommended daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals exactly one minute of TV time.

    Existing pedometers(计步器) normally clip(夹在) onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”

    According to findings of a survey by Citi and Seventeen Magazine, nearly four out of five (almost 80 percent) college students work while attending college, with the average work load of 19 hours per week. But should college students work while at college? Many factors should be considered.

    One benefit of working while in college is that it can help build your resume, regardless of whether the job is in your field, according to an article at Scholarships.com. "If you're lucky enough to find a job that closely relates to your major, you could get a leg up on the rest of your class once you graduate, because you'll have more experience in your chosen field," according to the article.

    Perhaps the most compelling reason for working while earning a degree is the money. While it's unlikely to entirely finance your education through a part-time or full-time job, you can still make quite a dent(削减)in the college bill by working.

    But some students prefer not to work while earning a degree so they can focus on getting the best grades. It's true that you'll have more time to stay at school if you don't work, provided you use that time wisely. If you feel like even 10-15 hours a week of work will hurt your grades, then perhaps you should not consider working.

    Working a part-time or full-time job can take away time from social activities, according to a You University TV article. "Trying to balance a job and your college studies, and taking a job can cut down your time to hang out with friends," according to writer Dave Potts.

    In addition to missing out on hanging out with your friends, working during college could prevent you from attending a number of campus events, such as movies on the lawn or football games. While you may be able to land a job that's flexible, it seems unlikely they'll let you choose your own schedule.

    So should students work at college? The decision should be made on a case-by-case basis. Some students can also thrive in school while working, whereas others can't.

    Young people's mental health is of increasing interest and concern to researchers, policymakers, and families alike－but can treating teenagers' mental health problems also improve the wellbeing of their parents? New research suggests that it can. The study, conducted by Kelsey Howard, a doctoral candidate at Northwestern University, found that regardless of which treatment teenagers were using for their depression, the mental health of their parents improved too.

    Older findings say that there is a link between mothers' depression and major depression in their teenagers, although it seems not to be biological. However, the latest research suggests that the relationship between parents' and their children's mental health might work in the other direction too.

    While Howard's research hasn't evidenced a clear reason for this trend, she told The Atlantic: “If the family members interact with (交往) each other well, the kid will be more pleasant to be around and make less negative statements, which will affect how other family members think.”

    Tom Madders, director of campaigns at YoungMinds, told HuffPost UK that for parents, watching their children go through mental health problems can be difficult, especially if they feel responsible. Madders also noted that parents often make big lifestyle changes, say, giving up their jobs, to support their children with depression, particularly in cases where their children have to leave school because of their mental health problems. However, Madders thought this can only make things worse. “Parents' sacrifice adds pressure to the delicate shoulder owners,” he said.

    The process of waiting to get treatment can also be an added stressor: “Every day we get calls to our helpline from parents whose children have been waiting months for an initial assessment, or left on long waiting lists for treatment that they need … that's why it's important that the Government commits to long-term extra investment in children's mental health services.”

    Candace Payne's life changed forever in May 2017 when she posted a video of herself laughing crazily and wearing a mask. The video spread widely and "Mask Mom "became a household name.

    During the two years since that, Candace has published several books, starred in a TLC. web series and went on tour with Mandisa. She made appearances on late night talk shows, met J. J. Abrams and was able to fulfill a dream of taking her family to Disney World. It was a busy but joyful time.

    Her latest book is Consider It Joy. "I feel like people need a tool in their hands to actually get the joy they are fighting for, "Candace says, "The book can help you keep track of how much space and time you are devoting to things that aren't worth it in comparison to the joy that I know I could have."

    Getting joy is something that has always been important to Candace. "What the opportunity offered me was not a forced open door," Candace says, "Many people are trying desperately to push things open when they have to be obedient(顺从的) to the little things."

    Trusting herself has required being confident in saying no. She uses a simple tool to evaluate whether an opportunity is right to her. Candace says, "I have a balance beam (平衡木)where I'm asked to walk every single day as a mom, a wife, a speaker and an author. There are so many things I need to balance at a time. I have to realize what belongs there and what doesn't. The most important factor is joy."

    That's the heart behind the book Consider It Joy. "I really wanted to give people more than just advice about joy, Candace says, "I wanted to give them the ability to actually own it in their everyday life."

Born in 1958, in south China's Guangxi Zhuang Autonomous Region, Huang Danian had an interest in geophysics from {#blank#}1{#/blank#}early age. He devoted his life to science, making many sacrifices(牺牲) along the way and{#blank#}2{#/blank#}(final) went to the United Kingdom for further study in 1993.

In 2008,{#blank#}3{#/blank#}(drive) by the idea that he needed to contribute{#blank#}4{#/blank#}his country, he gave up a good job and a life there and returned home. Huang{#blank#}5{#/blank#}(invite) to be the chief scientist of China's {#blank#}6{#/blank#}(big)deep-Earth exploration programme at Jilin University in Changchun, in northeast China. The programme aimed to install (安装) high-tech {#blank#}7{#/blank#}(camera) on aircraft, ships and satellites, {#blank#}8{#/blank#}would enable scientists to see through the Earth's crust(地壳). His efforts soon{#blank#}9{#/blank#}(pay) off. China narrowed the gap with the developed countries in obtaining accurate data on deep-Earth exploration. Thanks to a number of devoted scientists, such as Huang. (China is now becoming a leading power in this technology.）

Huang died at the age of 58. A bright star in the world of science had fallen, {#blank#}10{#/blank#}(leave) the scientific community in grief.