If you want to become a fluent English speaker you should take some advice: There are four skills in learning English. They are reading, listening, speaking, and writing. The most important thing you must remember is that if you want to improve your speaking and writing skills you should first master the skills of reading and listening.

    Read as much as you can. But your reading must be active. It means that you must think about the meaning of the sentence, the meaning of the unfamiliar words, etc. There is no need for you to pay much attention to grammars or try to understand all the unfamiliar words you come across ， but the fact that you see them for the first time and recognize them whenever you see them, for example, in other passages or books, is enough. It would be better to prepare yourself a notebook so you can write down the important words or sentences in it.

    As for listening, there are two choices: besides reading, you can listen every day for about 30 minutes. You can only pay attention to your reading and become skillful at your reading, then you can catch up on your listening. Since you have lots of inputs in your mind, you can easily guess what the speaker is going to say. This never means that you should not practice listening.

    For listening you can listen to cartoons or some movies that are specially made for children. Their languages are easy. Or if you are good at listening you can listen to VOA or BBC programs every day. Again the thing to remember is being active in listening and preferably taking some notes.

    If you follow these pieces of advice, your speaking and writing will improve automatically, and you can be sure that with a little effort they will become perfect.

    Snowbirds are people who leave their homes when the temperature drops and head to warmer climates. They are mostly retirees(退休人员) and business owners who can afford(付得起) to take the winter off. While the snow flies in the Northern states, they are enjoying golf, sailing and barbecues in mild temperatures in the South. Then, after winter passes, they return to their homes in the North.

    Most snowbirds are away from Canada and the Northern states between the middle of October and the end of November. They pack up and head to Florida, Alabama, Texas, California, and all of the other Southern states. Some may even go as far as Australia or Italy to escape the cold winter weather. There are special communities(社区) for snowbirds in many areas. Snowbirds are also offered special discounts(折扣) in some restaurants, hotels and area attractions. Several states even have special snowbird resorts (度假胜地). There are several online communities and local resources to help snowbirds get set in their seasonal homes.

    Some snowbirds own homes both in the South and in the North. Both homes have everything they will need for their stay, minimizing(最小化) the amount of packing necessary when moving from one to the other. Other snowbirds will rent apartments for their stay outside their home state.

    RVs(房车), are a huge part of the snowbird lifestyle. RVs allow snowbirds to move from place to place on a whim (奇想), bringing everything they need with them. They spend nights in RV parks, large parking lots or anywhere else they choose to stay. RVs have beds, bathrooms, and most other modern conveniences at home. Although the space is small, there is more than enough room for a couple to live in.

    You can't imagine how terrible I felt at that time. A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only two weeks to train. Yet, I was determined to go ahead.

    I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. I didn't do either well. He later informed me that I was "not athletic".

    The idea that I was "not athletic" stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!

    The night before my marathon, I dreamt that I couldn't even find the finish line. I woke up sweating and nervous, but ready to prove something to myself.

    Shortly after crossing the start line, my shoe laces(鞋带) became untied. So I stopped to readjust. Not the start I wanted!

    At mile 3, I passed a sign: "GO FOR IT, RUNNERS!"

    By mile17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.

    By mile 21, I was starving!

    As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.

    I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.

    Determined to be myself, move forward, free of shame and worldly labels(世俗标签), I can now call myself a "marathon winner".

    If you were an exchanged student in New York City, one day your math teacher gave you following questions as your homework, please write down your answers.

    Ⅰ.A company sold a product for α dollars in 1990. The price of the product would increase by 2.5% every year.

    Ⅱ.A man needs to make 3 curtains. The cloth which is used to make curtains sells for $8.00 per meter and can be purchased only by the full（完整的） meter. The length of cloth required for each curtain is 1.6 meters.

    Ⅲ.A pet store sells only dogs and cats. In March, the store sold twice as many dogs as cats. In April, the store sold twice the number of dogs that it sold in March, and three times the number of cats that it sold in March.

    (CNN)—This photograph of two men sharing a drink 30 meters below the water is part of an art project exploring the mysterious world of freediving—a form of underwater diving that relies on a diver's ability to hold his or her breath until resurfacing rather than on the use of oxygen tanks (氧气瓶).

    Each man, dressed in shirt, jeans and sunglasses, sits in a chair at the bottom of the Caribbean Sea with local sharks—harmless to humans—swimming just meters away. Of course, these aren't ordinary men, but freedivers: extreme athletes who dive on a single breath of air.

    American photographer Lia Barrett had been taking pictures of brave divers competing at the Caribbean Cup off the coast of Honduras, when she decided to create a fantastic underwater world in which humans go about everyday tasks—such as drinking coffee or riding bikes.

    "After the competitors had a great time in the new national and world records set at the competition, I took advantage of their breath-holding skills to do photo shoots I had only dreamed of before," said the 29-year-old.

    Perhaps unsurprisingly, Barrett is often asked whether the amazing pictures are Photoshopped. She laughs quietly as she insists they're 100% real.

    The picture of two men having coffee took 50 minutes to create, with the men receiving oxygen from standby assistants around every three minutes.

    "On the way back up, we were holding onto the table during our decompression (减压) stop in the strong current (水流)—it was quite a scene."

    The underwater models made an 11-minute stop on the way back to the surface, making sure they didn't rise too quickly and suffer decompression sickness—which can cause deadly blackouts (眩晕).

I believe in the power of science fiction,not just for its capacity to transform dreams into reality, but also for its power to bond together those who share a common vision of the future. For me, that's true for my relationship with my dad. Some fathers and sons bond over sports, fishing or hunting, but my dad and I bond over Star Trek. We tried a trip to Disney World, but one of my earliest memories wasn't Mickey, but a Klingon battle cruiser（巡洋舰）on the screen.
Over the years, nearly every setting and situation has become far away for my dad and me. When it's warm at night, we're not driving along some dark streets in Indiana,but.going at a slow speed with stars dimly shining. Both of us are thinking of them,without needing to say a word. All these visions of other universes have together created a private universe for my dad and me.

Gene Roddenberry, creator of Star Trek,once said, "Science fiction is a way of thinking，a way of logic that bypasses（绕过）a lot of nonsense. It allows people to look directly at important subjects." A lifetime of science fiction has influenced more than just my relationship with my dad, but has also helped me shape my own hopes for the future.I'm now a science writer.

Yes,science fiction has made me into a nerd. And it also has been a source of joy for my family,making me an optimist while enabling me to think critically about the danger of technology.thank those authors who have shared their visions, the world and my family are better for it. Thank my dad, who is both the best storyteller and the best man i have ever known because he helped me realize the truth of Tennyson's words," since i dipped into the future,i saw the vision of the world,and all the wonders that would be.