【正文】 ams and some of them even have two! It is a pity that the industrial cities built in the nineteenth century do not attract visitors. For historical architecture you have to go to older but smaller towns built by the Romans. There you will find out more about British history and culture. The greatest historical treasure of all is London with its museums, art collections, theatres, parks and buildings. It is the centre of national government and its administration. It has the oldest port built by the Romans in the first century AD, the oldest building begun by the AngloSaxons in the 1060s and the oldest castle constructed by later Norman rulers in 1066. There has been four sets of invaders of England. The first invaders, the Romans, left their towns and roads. The second, the AngloSaxons, left their language and their government. The third, the Vikings, influenced the vocabulary and placenames of the North of England, and the fourth, the Normans, left castles and introduced new words for food. If you look around the British countryside you will find evidence of all these invaders. You must keep your eyes open if you are going to make your trip to the United Kingdom enjoyable and worthwhile.Using LanguageSIGHTSEEING IN LONDONWorried about the time available, Zhang Pingyu had made a list of the sites she wanted to see in London. Her first delight was going to the Tower. It was built long ago by the Norman invaders of AD 1066. Fancy! This solid stone, square tower had remained standing for one thousand the buildings had expanded around it, it remained part of a royal palace and prison bined. To her great surprise, Zhang Pingyu found the Queen39。s jewels guarded by special royal soldiers who, on special occasions, still wore the fourhundredyearold uniform of the time of Queen Elizabeth I.There followed St Paul39。s house in London. Oh, she had so much to tell her friends!The second day the girl visited Greenwich and saw its old ships and famous clock that sets the world time. What interested her most was the longitude line. It is an imaginary line dividing the eastern and western halves of the world and is very useful for navigation. It passes through Greenwich, so Pingyu had a photo taken standing on either side of the line.The last day she visited Karl Marx39。 pany, called Future Tours, transported me safely into the future in a time capsule.I can still remember the moment when the space stewardess called us all to the capsule and we climbed in through a small opening. The seats were fortable and after a calming drink, we felt sleepy and closed our eyes. The capsule began swinging gently sideways as we lay relaxed and dreaming. A few minutes later, the journey was pleted and we had arrived. I was still on the earth but one thousand years in the future. What would I find?At first my new surroundings were difficult to tolerate. The air seemed thin, as though its bination of gases had little oxygen left. Hit by a lack of fresh air, my head ached. Just as I tried to make the necessary adjustment to this new situation, Wang Ping appeared. Put on this mask, he advised. It39。ll be ready for some visits. Having said this, he spread some food on the table, and produced a bed from the floor. After he left, I had a brief meal and a hot bath. Exhausted, I slid into bed and fell fast asleep. More news later from your loving son, Li QiangUsing Language I HAVE SEEN AMAZING THINGS My first visit was to a space station considered the most modem in space. Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth39。re going to examine one of the latest forms of munication among our space citizens. No more typists working on a typewriter or puter! No more postage or postcodes! Messages can now be sent using a thoughtpad. You place the metal band over your head, clear your mind, press the sending button, think your message and the next instant it39。s stored on the thoughtpad of the receiver. It39。s a system where the waste is disposed of using the principles of ecology. A giant machine, always greedy for more, swallows all the waste available. The rubbish is turned into several grades of useful material, such as fertilizer for the fields and soil for deserts. Nothing is wasted, and everything, even plastic bags, is recycled. A great idea, isn39。 it?I stared at the moving model of the waste machine, absorbed