How to Win a Debate Competition

    Debating doesn't mean that you can end up arguing with your opponents(对手). {#blank#}1{#/blank#}．The following tips on how to win a debate will further help you out.

    1 ){#blank#}2{#/blank#}

    This is very important. If you already know the debate topic that you are going to debate on, learn as much about it as you can. Research on it and then form opinions about it. Only if you know something in and out, will you be able to talk convincingly on it.

    2 ) Be confident.

    When you are putting your point in front of your opponents as well as the audience, be sure of yourself. Along with the words, your body language, voice modulation (语调) and eye contact, will play a major part in your success in debating. {#blank#}3{#/blank#}

    3 ) Give real life examples.

    While debating, make use of very simple language, which your audience can understand very easily. Give as many real examples as you can when making a point. {#blank#}4{#/blank#}．Thus, the judges and audience will find you much more convincing.

    4 ) Be descriptive.

    To win any debate, there is something about the human mind that you should be aware of. The thing with us humans is that if we see something, we believe and remember it much more than something we merely hear! {#blank#}5{#/blank#}．Tell you point of view in such a way that they can actually "see" what you are saying. If you are somehow able to pull this off, there is no doubt that you will be the winner of the debate competition!

    Follow the tips mentioned above, and with time, you will see yourself winning over your judges and audience.

    Blind people usually possess one advantage over other people who can see. Their sense of hearing is far more acute. Bats, whose sight is poor, use a sound location system to help them avoid blocks in the dark. They send out pulses of sound waves, pitched at 50,000 cycles per second, far above the limits of the human ear, which can hear sounds up to frequencies of about 20,000 cycles per second. As the echoes bounce back off obstacles such as trees and walls, the bats are able to take proper action.

    The first steps to help blind people to see with sound are based on exactly the same principle. The sound is given off by an ultrasonic (超声的) torch, whose shape is different from a normal electric torch. It is double-barreled. It works in a similar way to a sonar (声呐) unit on a warship or submarine. The unit's transmitter sends out pulses of ultrasonic waves at the same frequency as the bat and the receiver picks up the returning echoes. Because these are still above the frequency at which the human ear can pick them up. The echoes are filtered (过滤) through circuits that turn them into “bleeps” which can be clearly heard before passing them into headphones.

    This means that a person holding the torch can point it ahead of him and scan the area for obstacles over a range of about 25 feet. If there are no return echoes coming through the headphones, then there is nothing in the way. If echoes do come back, then the closer the obstruction the faster the succession of bleeps and the deeper the pitch of each bleep. With practice, the torch could help a blind person to lead a more normal life.

    At present, the experimental ultrasonic torch requires a shoulder bag to carry the batteries, cables for the power supplies and earphones, as well as the torch itself. Fortunately, reducing the size of the electronic equipment is progressing and it should not be long before the whole set-up can be reproduced in a form small enough to fit into a pair of glasses. The wearer would face in the direction he wanted to check, and lift or lower his head just as a sighted person would.

    What a lesson for me! It was August and it was hot. I had to wear a tie to do a survey door by door in this neighbourhood, but I was always refused. I finally caught on and began with “Before you close the door, I am not selling anything and I just need to ask a few questions about yourself and the community”.

    The young woman inside the doorway stopped for a moment, confused by my rude introduction and finally said, “Sure. Come on in. Don't mind the mess. It's hard to keep up with my kids.”

    “I just need to ask a few questions about yourself and your family. Although this may sound personal, I won't need to use your names. This information will be used.” She interrupted me. “Would you like a glass of cold water? You look like you've had a rough day.” “Why yes!” I said gratefully. Just as she returned with the water, a man came walking in the front door. It was her husband. “Joe, this man is here to do a survey.” I stood and politely introduced myself.

    “Joe works for the town,” she said. “What do you do?” I asked. She jumped right in not letting him answer. “Joe collects garbage. You know I'm so proud of him.”

    There was a silence. I didn't know what to say. I shook my head searching for the right words. “That's unbelievable! Most people would not be satisfied with a job like that. It certainly is a difficult one. But your attitude about it is amazing.” I said.

    She walked over to the shelf. As she returned she held a small framed（装裱）paper, walking toward Joe. “I have always been proud of him and always will be. You see I don't think the job makes the man, but the man makes the job!” she said as she handed me the paper.

    It said: If a man is called to be a cleaner, he should clean streets so well that all the hosts of heaven and earth will pause to say, “Here lived a great cleaner who did his job well.”

    Venus, the Wildest Adventure in 3016!

    A trip to the moon, to Mars? You are out. Venus (金星) is your choice! Our spaceship carries you there at the speed of light!

    Amazing Venus Facts

    Temperature range: ALWAYS about 450 degrees Celsius. Great for barbecues!

    Seasons: No seasons. Always visit during best season!

    Gravity strength: 0.91 of Earth's gravity. Makes you lighter and more alive than ever!

    Water: NONE. All boiled away.

    Day length: 1 day=243 Earth days. Longest days in solar system» so fun never ends!

    Rate of turning: 0.002 km/second. Turns in opposite direction of the earth, so able to see sun rise in the west and set in the east.

    Year length: 1 year=224.7 Earth days or 0.62 of an Earth year.

    Rate of revolution: 35.03 km/second.

    Atmosphere:

    Very thick.

    96% carbon dioxide; 3% nitrogen, and 0.1% water vapor.

    Can't support life: Suffocating carbon dioxide, thick clouds of sulfuric acid, and gases create greenhouse effect so very hot and no water.

    A woman was sitting by herself in a movie theatre. The movie she was about to set was a musical version(版本)of a very successful book that had sold a million copies that year.

    As the woman was waiting for the movie to begin, she noticed that the theatre was very crowded but the two seats next to her were empty.

    Suddenly a large man carrying a big fur coat walked down the aisle(走廊) and sat down, placing the fur coat on the seat next to her.

    When the lights went out, the fur coat bean to move, and the woman realized it was not a coat but a large furry dog. He was sitting up in the seat, watching the movie screen with great interest. As soon as the movie started, the dog began to nod his head and beat his paws (爪) in perfect time to the music.

    When the movie was over, the woman turned to the man and said, “Excuse me, sir, but I've never seen Such a well-behaved dog in a movie theatre before. Does he go to the movies often?”

    “Oh, yes,” replied the man.

    “And he seemed to enjoy everything so much,” she said, “It was just amazing!”

    “As a matter of fact, it surprised me too.” said the man. “He hated the books！”

    You don't need to get in a time-traveling machine to see how technology will reshape our lives, such as the way we shop. Several new technologies that are to change your buying habits already exist. Let's see what's waiting for your future shopping.

    Try it on, virtually(虚拟的). Want to shop online for a new pair of eyeglasses? You don't need to guess which pair looks best on you. Go and see the eBay Fashion iPhone app to try a pair of eyewear you're checking out on a picture of your face. But what if you want to buy something bigger? Thanks to Microsoft Kinect's motion tracking camera, you can cover clothes on your screen body. You can even choose the background of your virtual fitting room to enrich your shopping experience.

    Get a perfect, custom fit. Everyone's body is shaped differently. To get a perfect fit, you sometimes have to get your clothes changed. But by using 3D scanning(扫描) technology, all the clothes you buy will fit your body perfectly. Some companies scan your body using High-tech to get the most exact sizes, so they can make special clothes just for you.

    Experience high-tech shopping carts and checkout counters. High-tech shopping carts could, in time, be a common sight in malls and supermarkets. Microsoft Kinect-enabled carts are under test at present. The cart can follow you along the aisles (通道), controlled only by your movement and your voice. In China, a supermarket chain(连锁超市) introduced tablet-equipped carts that guide shoppers around the stores' aisles.

    In the United States, several supermarkets use a device(装置) called Scan It that gives buyers the freedom to scan goods on their own while they shop. While it's great not having to line up at a checkout counter, we wouldn't mind it if the store used Toshiba's new Object Recognition Scanner. The machine identifies(辨认) a product as soon as it's placed in front of a camera just by its shape and color, even if it has no bar code(条形码).