“Write All About It”

Centerville High School Essay Contest

Rules

1). Students are asked to hand in essays of 500 to 700 words of their own work. Any essay containing material copied from another source will be disqualified.

2). Manuscripts should be typed double-spaced, with the student's name, address, and grade level on a separate sheet of paper.

3). Essays must be turned in by 4:00 P.M. on November 30. They can be brought to Mrs. Elton in Room 104 or to Mr. Markham in the school library.

Essay-Writing Tips

1). Catch your reader's interest—Your opening should immediately pull your reader into your essay. Asking a question or starting with a story, or surprising statement are some good ways to do this.

2). Create a picture—Use active words that show your reader what is happening. Instead of telling your reader that “the room was disordered,” paint a picture using active verbs and lively adjectives.

3). Have a purpose—Well-written essays do more than just describe an event or express a viewpoint; they also communicate a message.

4). Check for mistakes—Read your paper over to check for mistakes. Ask another student to read your paper. Another pair of eyes will often spot a mistake you have missed.

5). Format your essay—Neatly type your essay on white paper. Choose an attractive cover for handing in. The computer lab will be open after school from 3:15 to 4:45 P.M. each day this month so that students can use the computers.

Prizes

Winning essays will be published in the Centerville Times. Everyone who takes part in it will also receive a free pass to enter one school activity this year.

First Prize: $50 savings bond

Second Prize: Dictionary and reference book

Third Prize: Pen set and journal

Special thanks to the Centerville Writers' Association for the prizes to help encourage our aspiring authors. Good luck to all contestants.

    Not so long ago, a sailor sailing across the cold waters of the northern Pacific Ocean might have had every chance of being confronted by a sea cow. This cow would have measured 10 meters long, and weighed between five and ten tones. And it would spend most of its day cruising the seas, eating grass growing underwater. The cow in question was known as Steller's sea cow, which is now extinct.

    Today, many people are unaware that such an extraordinary creature once existed, or don't know its incredible story. But scientists have discovered many fundamental facts about this mystical animal.

    Surprisingly, the first recorded sighting of a Steller's sea cow didn't happen until 1741, when a sailing expedition was stuck on an uninhabited island, later named Bering Island. The sailor survived by hunting and eating the huge sea cow. Like its modern relatives, the sea cow lived in herds. That and its slow-moving behaviour made it easy to be caught.

    Those sailors that escaped Bering Island spread word of the bounty(大量) of meat to be found off its shores. As a result, more and more expeditions came to hunt the animals. One report stated that one sea cow could feed 33 men for a month.

    Incredibly, just 27 years after the island and species had been discovered by modern man, the last sea cow was reported killed. That makes the Steller's sea cow one of the few truly large mammals known to have been driven extinct in the modern age.

    After spending the first five years of his life in San Diego, Adam Driver's family packet up and moved to a small town in Indiana, where Adam enjoyed a relatively routine adolescence. Then the horrific events of September 11th made Adam's life become anything but routine.

    Just a few months following the events, Driver decided to join the United States Marine Corps. He considered 9/11 as being one of the reasons for joining the army, with his desire to leave Indiana providing the rest. He once said,"I'm grateful for having grown up in Indiana, but I needed to go out and the Marine Corps was a nice, stable option." After serving for two and a half years, and just two months before he was sent to Iraq, Driver injured his sternum in a biking accident. After he was healed, he injured it again during military training, which resulted in an honorable medical discharge.

    After leaving the military, Driver decided to try his hand at acting. At first he studied close to home at the University of Indianapolis, but after just a year, he transferred to Julliard in New York City. He lived in a tiny apartment in Hoboken, New Jersey apartment while studying drama at a prestigious performing arts conservatory（音乐学院）. Following his graduation in 2009, Driver immediately began appearing in plays, including 2010's Mrs. Warren's Profession.

    Adam's first major television experience was a guest spot on Law & Order, and was soon followed by a small role in the award-winning film You Don't Know Jack, which was Driver's first experience working with Home Box Office. Then after landing his star-making role on Girls, Driver was cast in a handful of feature films, including 2011's J. Edgar and 2012's Gayby, Not Waving but Drowning and Frances Ha.

    He'll appear next year in the Coen brother's Inside Llewyn Davis and Steven Spielberg's Lincoln.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    We humans spend about one-third of our lives asleep. This may sound like a lot of time, but it is not wasted. Sleep not only helps us stay healthy but it also helps our brains remember. Our brains need good sleep to remember what we do and learn during the other two thirds of our lives when we are awake.

    Researchers at the University of Wisconsin-Madison have found that sleep helps improve brain performance by shrinking(收缩)synapses in the brain. A synapse is the area where cells pass messages to other cells.

    Scientist Chiara Cirelli is a leader at the school's Center for Sleep and Consciousness. She told the reporter that sleep is when the human brain mixes information it has learned while awake into its general collection of knowledge. Meanwhile, the brain forgets unimportant details. This forgetting is important. It makes space for new learning and new memories.

    Cirelli said that the Centers research began with this hypothesis(假设): We sleep so that our brain can repair and refresh itself. She said the idea seems simple and reasonable. However, testing and discovering how it works has been extremely difficult.

    Synapses are only about 20-40 nanometers(纳米)wide. The team began their study by measuring the size of the synapses to look for changes in these already tiny spaces between nerve cells. Cirelli says the process(过程) is difficult because"all the actual measurements of the synapses have to be done by hand." The team had to wait until improvements in laboratory technology made it possible to see these tiny changes. A University of Wisconsin press release called the research a"huge job." Many research specialists worked for four years to photograph, rebuild and study certain areas of a mouse brain. The report also said the scientists measured 6,920 synapses.

    Cirelli says they found that our synapses shrink as our brains clean themselves during sleep. We wake up refreshed and ready to fill those synapses with new information. The research findings are the result of years of hard work at the University of Wisconsin Madison. The researchers published their findings in the journal Science.

    Here are some great people and their achievements.

    Mary Anderson ­ windscreen wiper.

    Back on a freezing winter's day in 1902, Mary Anderson was travelling by train through New York City. Snow was falling, forcing the driver to stop repeatedly and get out to clear it. Each time the door opened, Mary suffered a gust of sub-zero air. She had an idea: why not make some kind of a rubber blade that could be operated from inside the vehicle? And that's exactly what she did.

    Josephine Cochrane ­ dishwasher

    The dishwasher dates back even earlier to the 19th century, and to the dinner parties thrown by a lady called Josephine Cochrane. As a frequent host, she wanted a machine that could wash dishes faster than people. Her response was to develop what was to become the first commercially successful dishwasher. Interestingly, innovation was in her blood: her grandfather had invented the steamboat.

    Stephanie Kwolek ­ Kevlar

    Kevlar is the lightweight fibre used in bulletproof vests. The material is used by millions every day and has saved countless lives. The super tough fabric is also used in objects ranging from gloves to airplanes. Incredibly, its strength-to-weight ratio(比强度) is five times higher than steel. Again, it was invented by a woman, the American chemist Stephanie Kwolek, in 1964.

    Grace Hopper ­ first compiler(编译程序)

    One of the most important inventions of the 20th century must surely be the computer programme. The world of programming is unbalanced in terms of gender. Men vastly outnumber women, and take home around 30% more pay than their female counterparts on average. But back in the 1940s and 1950s, women were at the forefront of this new field. Grace Hopper is credited with inventing the first compiler in 1952, which serves as the bridge between code and the binary(二进制的) ones and zeros understood by computers.

Perhaps you have seen them, those who fall asleep on the subway and then, somehow, wake up exactly at their stop. Perhaps you are one of them. How is this possible? We spoke to two doctors, who offered their insights about it.

It is possible that your body gets used to waking up at a certain point each time during your commute, said Dr. Marc I. Leavey, a primary-care specialist in Maryland. That holds especially true if you commute at the same time every day. This suggests that if you were to get on at a different time, or if the journey were delayed, your internal clock might not wake you up at your stop. It is an interesting theory, but Dr. Ronald Chervin, director of Michigan Medicine's Sleep Disorders Centers, does not fully buy it. He is skeptical that circadian rhythms can also explain why you wake up after a brief nap.

You are also likely to wake up for your particular stop because of an oral cue, such as the conductor stating the name of the subway stop over the public-address system. Such cues alert your brain that you have arrived, explained Dr Leavey. According to a study published in the Public Library of Science, during sleep, our brain reacts differently when we hear our own name and other people's names, noted Dr Chervin. This suggests that your brain does not turn off during sleep, which makes it possible to pick up on the announcement of your stop.

Another reasonable possibility: You may wake up at each stop, check if it is yours, and go back to sleep, all without having remembered it, added Dr. Chervin. He sees this in cases where patients are suffering from sleep apnea. They may wake up as many as 200 times during a single night, without having remembered a single instance. That's because they fall right back asleep before their brain has time to process their experience into long-term memory. Similarly, you could be waking up every time you hear a new stop called. But you just don't remember such instances even after you fully come awake for your stop—leading you to believe that you have slept the whole way through and miraculously woken up at the right time.