Common public speaking problems

    The use of "I feel", "I think" and "maybe"

    In the question-and-answer session of the speaking competition, many contestants began their answers with uncertain expressions like "I feel", "I guess", "I hear", "maybe" and "perhaps".

    These words show that the person is only speaking from his or her point of view. {#blank#}1{#/blank#} 

    Work on keeping your answers brief and to the point, {#blank#}2{#/blank#} . Instead of the empty-sounding "I guess", using facts, together with a clear conclusion based on those facts, is far more likely to be popular with an audience.

    Using only one speaking style

    Don't stick to the same tone. {#blank#}3{#/blank#} 

    For example, when they spoke about their dreams, some sounded romantic. Others used humor. Very few used several different styles together. Try mixing more than one style, rather than just sticking with the same one.

    Irresponsible answers

    Public speaking is different from personal conversations. You're responsible for your words. {#blank#}4{#/blank#} So you should think twice before you talk. Don't be like the student who, when asked about his opinion on book piracy（盗版）, started by saying he supported it.

    Talking around the topic rather than directly answering it

    You should focus on one point and give a clear solution. The key is to work out what question is being asked. Is it asking you to discuss a certain topic or to present your own point of view?

    Use one or two arguments together and give a strong conclusion. {#blank#}5{#/blank#} 

A. It can be boring. Try to mix it up.

B. Even though you want to answer quickly, you don't want to sound foolish.

C. Also work on delivering them with calmness and confidence.

D. Deliberate gestures and affected（做作的）expressions of feelings are improper in a successful speech.

E. Remember that judges are not judging you on whether they agree, but on your ability to say what you think clearly.

F. This lacks the support of facts and seems not to be reliable for the judges and audience.

G. Confidence is extremely important in public speaking as it lets a speaker sound more convincing.

    Most people know precious gemstones (宝石) by their appearances. An emerald flashes deep green, a ruby seems to hold a red fire inside, and a diamond shines like a star. It's more difficult to tell where the gem was mined, since a diamond from Australia or Arkansas may appear the same to one from the Democratic Republic of the Congo. However, recently, a team of scientists has found a way to identify a gemstone's origin.

    Beneath the surface of a gemstone, on the tiny level of atoms and molecules（分子）, lie clues (线索) to its origin. At this year's meeting of the Geological Society of America in Minneapolis, Catherine McManus reported on a technique that uses lasers (激光) to clarify these clues and identify a stone's homeland. McManus directs scientific research at Materialytics, in Killeen, Texas. The company is developing the technique. “With enough data, we could identify which country, which mining place, even the individual mine a gemstone comes from,” McManus told Science News.

    Some gemstones, including many diamonds, come from war-torn countries. Sales of those “blood minerals” may encourage violent civil wars where innocent people are injured or killed. In an effort to reduce the trade in blood minerals, the U.S. government passed law in July 2010 that requires companies that sell gemstones to determine the origins of their stones.

    To figure out where gemstones come from, McManus and her team focus a powerful laser on a small sample of the gemstone. The technique is called laser-induced breakdown spectroscopy. Just as heat can turn ice into water or water into steam, energy from the laser changes the state of matter of the stone. The laser changes a miniscule part of the gemstone into plasma, a gas state of matter in which tiny particles（微粒）called electrons separate from atoms.

    The plasma, which is superhot, produces a light pattern. (The science of analyzing this kind of light pattern is called spectroscopy.) Different elements produce different patterns, but McManus and her team say that gemstones from the same area produce similar patterns. Materialytics has already collected patterns from thousands of gemstones, including more than 200 from diamonds. They can compare the light pattern from an unknown gemstone to patterns they do know and look for a match. The light pattern acts like a signature, telling the researchers the origin of the gemstone.

    In a small test, the laser technique correctly identified the origins of 95 out of every 100 diamonds. For gemstones like emeralds and rubies, the technique proved successful for 98 out of every 100 stones. The scientists need to collect and analyze more samples, including those from war-torn countries, before the tool is ready for commercial use.

    Scientists like Barbara Dutrow, a mineralogist from Louisiana State University in Baton Rouge, find the technique exciting. “This is a basic new tool that could provide a better fingerprint of a material from a particular locality,” she told Science News.

    Every day, Americans throw away 500 million plastic straws, enough to circle the Earth twice. They are almost never recycled, and simply contribute to the great problem of plastic pollution; eight million tons of plastic is dumped into the oceans every year.

    Plastic straws are now the target of a growing movement to reduce their use. Possibly the first of such campaigns, Be Straw Free was started in 2011 by Milo Cress, who was only nine years old at the lime.

"I noticed that whenever I ordered a drink at a restaurant, it would usually come with a straw in it, and I don' I usually need a straw," he said. "This seemed like a huge waste. Straws are made of oil, a precious and finite resource. Is making single - use plastic straws, which will be used for a matter of minutes before being tossed away, really what we want to do with this resource?"

    Cress started asking restaurants in Burlington, Vermont, where he lived at the time, to stop providing straws automatically to customer and make them optional instead. Many agreed and his request made ripples (涟漪) nationwide. The restaurants that make the switch report a reduction in the number of straws they use between 50 and 80%.

    The anti - straw sentiment has crossed borders into the UK, where straws have been included in a government plan to ban ail plastic waste by 2042.

Last year large pub chain Wetherspoons announced that it would replace plastic straws with paper alternatives across 900 outlets. After the announcement, many smaller chains and pubs across the country followed suit. According to Wetherspoons CEO John Hutson, the move will save 70 million plastic straws a year and the reaction from patrons has been "very positive".

Offering alternatives or making plastic straws optional, rather than banning them completely, is a common trait among these campaigns. "There are many other viable alternatives to single - use plastic drinking straws that are less harmful to the environment, wildlife and humans," said Jackie Nunez, founder of The Last Plastic Straw.

    Doing voluntary work abroad is a great way for you to learn about service learning and know better about the world and different cultures. Visit our websites for further details.

Global Vision International

    Experience everything in our adventure when you join us in a team of international volunteers under 18. Assist with the projects that will benefit poor children's development and education. Discover the area's splendid beaches, explore beautiful jungles and immerse(沉浸)yourself in the friendly local culture.

    Cost: $2,990             Tel: 1-888-653-6028       Email: info@guiworld.com

    Website: www. Volunteer and Adventure Experience in Costa Rica. Com

Broadreach Summer Adventures

    Since 2993, Broadreach has taken over 12,000 students on their worldwide summer adventure volunteer programs for middle school, high school students. Their 75+ program offerings include marine biology, sailing, medicine, culture, arts, community service and leadership adventures. Programs are located in 40 +countries.

    Cost: Staring at $3,880          Tel: 919-256-8200

   Email: info@ gobroadreahc. Com   Website: www. gobroadreach. com

Cross-Cultural Solutions

    CCS teen summer service trips are for high school students aged 15-17. The High School Volunteer Abroad program offers you an awesome opportunity to volunteer side-by-side with local people. You can also meet new friends on a teens-only group volunteering project in Costa Rica, India, Peru, Ghana, and so on. You'll participate in many cultural activities during the week and on weekends.

    Cost: Contact us for pricing and availability

    Tel: 1-800-380-4777

    Email: info@crossculturalsolutions.org

    Website: www. crossculturalsolutions. Org
United Planet

    United Planet offers volunteer abroad programs in four destinations for those under 18. Volunteers may work in nursing home, Community Service Stations or in environmental conservation projects. Destinations include Romania, Peru, Ecuador and Chile. Candidates 16 years and older can apply.

     Cost: According to the length of your stay   Tel: 617-267-7763

    Email: quest@unitedplanet. org            Website: www. unitedplanet.org

    Edison Park Community(社区) Church stood for 87 years in northwest Chicago before it was pulled down in 2016. Churches come and go, but what makes the passing of the church impressive is the beautiful way its members chose to go out.

    Edison Park Community had 300 active members in the 1960s. But by the time the most recent minister(牧师), Rev. Katherine Karch took over, 12 years ago, membership had shrunk unexpectedly. By last year, Edison Park Community was home to only 30 members. “We couldn't pay the bills anymore.” Karch says. The church's members had little choice but to sell their brick building. A developer paid $740,000 for the property(财产) and planned to tear down the church to make room for single-family homes.

    Yet the sale of the property created a major change. Edison Park Community is part of the United Church of Christ, in which each church is owned by its members. That means the church belonged to its members. They had the right to deal with the earnings from the sale as they wished.

    Yet almost a century of baptisms(洗礼) and Sunday socials had laid down strong community roots. Karch says there was only one idea considered from the start. “What they have chosen to do is donate(捐赠) that money to charities.” she says.

    Their first check, for $100,000, went to the Greater Chicago Food and provided more than 300,000 meals for the hungry. Other beneficiaries(受益者) include United Church of Christ's disaster-relief efforts, and a no-kill animal shelter. Let these extraordinary stories of generosity inspire you to give back to your community.

    My challenge for you is this: to read a book for 15minutes every single day for a month.

    Let me explain a bit, by telling you where the challenge came from. I have many things in common with my dad, like music taste and sense of humor, but sadly reading isn't one of them. I can happily spend a whole day with a book, but my dad can't read a book for longer than about 5 minute. He reads emails, websites and papers for work, but not book. He's busy, so I think sitting down to read for just 15minutes a day is a good way to relax and to introduce him to reading.

    My dad is not the only person who avoids book. I know lots of people would rather relax on their computers or in front of the TV. Everyone is different and has their own interests, but I think there are lots of benefits to reading, which screen﹣based activities don't have.

    Firstly, it's better for your eye. Looking at screens can be very stressful for your eye muscles, and clearly you should avoid looking at screens for an hour before bed, to get a good night's sleep.

    One thing I personally love reading, is being transported to another world﹣I often forget the time or things around me! Reading is a great way to switch off before you go to bed, because you think more about the world of the book, rather than the real world, so you can truly relax. I know you can be transported to a different world in a film or a TV show, but I think books do it better.

    I also enjoy hearing what people are doing and finding out what they think. Reading gives me the chance to get to know hundreds of new people! It also teaches you to see things from other people's point of view, and understand other people's decisions or opinion. With a book, you can hear everything a character is thinking or feeling﹣you really can be inside someone else's head!

    So give it a go! Take 15 minutes when you are waking up, going to bed, eating lunch, or having a coffee. If you read a lot, why not try 15 minutes of an English book, or pass the challenge on to someone else？ Good luck, and happy reading!