Disposing (处理) of waste has been a problem since humans started producing it. As more and more people choose to live close together in cities，the waste disposal problem becomes increasingly difficult.

    During the eighteenth century，it was usual for several neighboring towns to get together to select a faraway spot as a dump site. People would transport household rubbish，rotted wood and old possessions to the site. Regularly some of the trash was burned and the rest was buried. The unpleasant sights and smells caused no problem because nobody lived close by. Factories and some other industrial sites also had waste to be disposed of. Those located on rivers often just poured the unwanted remains into the water. Others built huge burners with chimneys to deal with the problem.

    Several facts make these choices unacceptable to modern society. The first problem is space. Dumps(垃圾场)， are most needed in heavily populated areas. Such areas rarely have empty land suitable. Farm areas are refusing to accept rubbish from elsewhere，cheap land in major city areas to dispose wastes is nonexistent(不存在的). Awareness of pollution dangers has resulted in more strict rules of waste disposal. Pollution of rivers，ground water，land and air is a price people can no longer pay to get rid of waste. The amount of waste，however， continues to grow.

    Recycling efforts have become commonplace，and many towns require their people to take part. Even the most efficient recycling programs，however，can hope to deal with only about 50 percent of a city's reusable waste，so more people should be involved in recycling programs.

    Most of the people who appear most often and most gloriously in the history books are great conquerors and generals and soldiers, whereas the people who really helped civilization forward are often never mentioned at all. We do not know who first set a broken leg, or launched a seaworthy boat, or calculated the length of the year, or manured(施肥)a field; but we know all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars (纪念柱) in the great cities of the world you will find the figure of a conqueror or a general or a soldier. And I think most people believe that the greatest countries are those that have beaten in battle the greatest number of other countries and ruled over them as conquerors. It is just possible they are, but they are not the most civilized.

    Animals fight; so do savages (野蛮人); hence to be good at fighting is to be good in the way in which an animal or a savage is good, but it is not to be civilized. Even being good at getting other people to fight for you and telling them how to do it most efficiently －this, after all, is what conquerors and generals have done －is not being civilized. People fight to settle quarrels. Fighting means killing, and civilized peoples ought to be able to find some way of settling their disputes other than by seeing which side can kill off the greater number of the other side, and then saying that that side which has killed most has won. And it not only has won, but, because it has won, has been in the right. For that is what going to war means; it means saying that might is right.

    That is what the story of mankind has on the whole been like. Even our own age has fought the two greatest wars in history, in which millions of people were killed or disabled. And while today it is true that people do not fight and kill each other in the streets －while, that is to say, we have got to the stage of keeping the rules and behaving properly to each other in daily life － nations and countries have not learnt to do this yet, and still behave like savages.

    Welcome to SummerCamps.com; find and book the very best summer camps. Your children are precious so we offer the highest quality of camps that will meet each child's needs and interests.

    Catalina Sea Camp

    Sea Camp offers three one-week sessions to boys and girls aged 8-13 and two three-week sessions to teens aged 12-17. Our hand-picked instructors create an atmosphere of fun and excitement while leading campers to a host of ocean adventures, marine(海洋的) biology, and social summer camp activities.

    Address: Toyon Way, San Bruno, California 94066

    Phone: 800-645-1423

    Camp Cayuga

    Camp Cayuga is a private summer camp for children aged 6 to 16. The camp is on a 350-acre land in the Pocono Mountains of Northeast Pennsylvania, just outside the village of Honesdale. It's a 3-hour drive from New York City and Philadelphia.

    Address: 321 Niles Pond Road-Suite ISC, Honesdale, Pennsylvania 18431

    Phone: 908-470-1224

    Camp Rockmont

    Camp Rockmont is a Christian summer camp for boys, aged 6-16, in the Blue Ridge Mountains of North Carolina. Rockmont's duty of developing boys into healthy young men is accomplished through age-appropriate skills, activities, and challenges that help campers to know themselves better.

    Address: 375 Lake Eden Road， Black Mountain, North Carolina 28711

    Phone: 828-686-3885

    Primitive Pursuits Overnight Camps

    Primitive Pursuits Overnight Camps offer week-long Summer Adventure Overnight Camps in New York's Finger Lakes to your children aged 11-15. Campers experience a week of nature-based skills training, inspiring challenges, and fun activities under the guidance of skilled instructors.

    Address: 611 County Rd 13, Van Etten, New York 14889

    Phone: 607-272-2292

    It's 8 a.m., Tuesday, Nov. 18, 2028, and you are headed for a business appointment 300 miles away. You step into your circle, two­passenger air­cushion car, press a series of buttons and the national traffic computer notes your destination, figures out the current traffic situation and signals your car to slide out of the garage. Hands free, you sit back and begin to read the morning paper — which is flashed on a flat TV screen over the car's dashboard. Tapping a button changes the page.

    The car speeds up to 150 mph in the city's countryside, and then hits 250 mph in less built­up areas, driving over the smooth plastic road. You fly past a string of cities, many of them covered by the new domes (圆屋顶) that keep them evenly climatized all year round. Traffic is heavy, typically, but there's no need to worry. The traffic computer, which sends and receives signals to and from all cars on the road between cities, keeps vehicles at least 50 yds apart. There hasn't been an accident since the system began.

    Suddenly your TV phone buzzes. A business partner wants a sketch of a new kind of impeller your firm is putting out for sports boats. You reach for your case and draw the diagram with a pencil­thin infrared flashlight (红外线闪光灯) on what looks like a TV screen lining the back of the case. The diagram is sent to a similar screen in your partner's office, 200 miles away. He presses a button and a fixed copy of the sketch rolls out of the machine. He wishes you good luck at the coming meeting and signs off.

    Ninety minutes after leaving your home, you slide beneath the dome of your destination city. Your car slows down and heads for an outer­core office building where you'll meet your colleagues. After you get out, the vehicle parks itself in a garage to await your return. Private cars aren't allowed inside most city cores. Moving sidewalks and electrams (电车) carry the public from one location to another.

    It began as a game: High school and college students studying computer technology figured out they could use personal computers to break into telephone company computers and make free, long-distance telephone calls. These young computer talents soon gained the name "hackers".

    Police arrested a few hackers, but many went on to even more complex hacking. One of them was arrested for making illegal telephone calls and later he used a phone to change a police officer's credit records to get back at the officer for arresting him. He also used a computer to change his college records to give himself better grades.

    As hackers gained experience  they began invading computers at banks, airlines and other businesses. In one case a hacker instructed an airline's computer to give him free airplane tickets.

    The U.S. government is worried that hackers may break into its networks of defense computers. The government's secrets are easily attacked because thousands of government computers are connected by telephone lines that hackers can get into.

    In November 1988, a college student entered a U.S. Defense Department computer network called Arpanet. The hacker injected a computer program that made copies of itself throughout Arpanet. Some hackers use viruses to destroy all the data in a computer. But in this case, government officials shut down the network before the program reached every computer in the system. Shutting down the system angered many researchers who were using the computers. The hacker turned himself in to the police and he was charged with a crime.

    The incident put the spotlight on computer hacking in the United States. Many companies have hired experts to protect their computers from hackers, and many computer experts now advise companies on how to protect their computers.

    The U.S. government believes foreign governments have hired hackers to try to break into top-secret defense computers.

    Experts disagree over whether a computer network can ever be safe from hacking. But in the future, some of the most outstanding minds in the U.S. will be working to frustrate the attempts of computer hackers.

    A DREAM, for me, is like a torch to light up my insipid (平淡的)life and a pair of wings to fly me into the sky. The uncertainty of my future and the heavy burden of schoolwork had driven me into a negative situation and not until I had a dream did I get out there. I decided to become a hostess.

    It was last summer. I went to Jinan, which is famous for its natural springs, and started to learn broadcast hosting. However, I found that it was not easy.

    The weather was bad. It was too hot to stay calm, which made me homesick. I called-my parents at least five times a day. But as I tried my best to adapt to the weather and living conditions there, I became more independent.

    Another thing bothered me, too. My teacher criticized all my mistakes. Grievance (委屈)and exhaustion often reduced me to tears and sweat flowed down my checks. To get her recognition, I practiced my voice skills in a park every day, even on rainy days. You can't imagine how happy I was when she praised me for the first time.

    My dream enabled me to change a lot. Without my dream, I wouldn't have had the courage and the confidence to host the New Year party at our school. On stage, I knew that it was a good beginning to my hosting dream.

    I took the arts examination in the winter. To my delight, I did well. And I was more than excited when I received the offers from Shandong Normal University, Yunnan Normal University and Yunnan Art Institute.

    My dream has powered so much energy in me that my life has become colorful every day. So, however hard it will be to stick to my dream, no way will I give it up!