【正文】 s clothing industry．F．Since they were invented by Levi Strauss, they have bee a symbol of American consumer culture．G．As the business grew, Strauss got much money from it．第十二篇Recently some American scientists have given a useful piece of advice to people in industrialized nations．They say people should eat more of the same kind of food eaten by humans living more than 10,000 years ago． 1 The scientists say that the human life has changed greatly．Our bodies have not been able to deal with these changes in lifestyle and this had led to new kinds of sicknesses． 2 So they are called diseases of civilization．Many cancers and diseases of the blood system are examples of such diseases. Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol or tobacco, probably none． 3 However, a change in food is one of the main differences between life in ancient times and that of today. Stone Age people hunted wild animals for their meat, which had much less fat than domestic ones．They ate a lot of fresh wild vegetables and fruits．They did not have milk or any other dairy products, and they made very little use of grains． 4 We eat six times more salt than our ancestors．We eat more sugar．We eat twice as much fat but only one third as much protein and much less vitamin C. 5 But scientists say that we would be much healthier if we eat much the same way the ancient people did, cutting the amount of fatty, salty and sweet food. A．Stone Age people lived a simple life. B．But today, we enjoy eating a lot of these. C．In that case, they would live much healthier. D．Ancient people also got lots of physical exercise. E．These new sicknesses were not known in ancient times. F．People today probably don39。t cost much and they are always some pleasant surprises.D. You can give your friend a backpack with his or her photo on it.E. He will be very happy because he likes this unusual photo.F. You can buy him a mug because his mug was lost in the office.第十一篇For over one hundred and fifty years, Americans of all social classes have worn blue jeans． 1 Whether they are worn for work or for fashion today．Strauss39。 fill the bottle with coloured water. Tap a hole in the center of the cap using a hammer and thick nail. Put the cap on the jar. Then stick a plastic straw(吸管) through the nail hole._______4____________.Finally. Place a white card on the outside of the bottle and behind the straw. Now you can see the water lever easily._______5___________.As the temperature goes down, the water will contract, and the lever in the straw will e down. Perhaps you will want to keep a record of the water lever in the straw each morning for a week. A. We use and depend on thermometers to measure the temperature of manyother things in our daily lives. B. Thermometers measure temperature, by using materials that change in the same way when they are heated or cooled.C. Now that you know this rule you can make a thermometer of your own that will work. D. The water will rise in the straw. As the temperature of the air goes up, the water will expand and rise even higher. E. They label these in different ways. On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees. On the Celsius scale water freezes at 0 degrees and boils at 100degrees. F. Take wax (you may use an old candle if you have one) and melt some of it right where the straw is struck into the cap to seal(把..粘住) them together. G. People use thermometers which are made by themselves when travelling around the world.第九篇What is your favourite colour? Do you like yellow, orange, red? ___1___ . Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of colour preference, as well as the effect that colours have on human beings. __2___ . If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly. ___3___ . A yellow room makes most people feel more cheerful and more relaxed than a dark green one。Note any questions or ideas you may have about what was said or written.As you take notes, you may want to use your own shorthand(速記). When you do, be sure that you understand your symbols and that you use them all the time. 5A. Use words, not plete sentences.B. There are three practical notetaking methods.C. You must write your notes on separate paper.D. Otherwise, you may not be able to read your notes later.E. you will also want to develop your own method for taking notes.F. That means you must first decide what is important enough to include in your notes.G. First, the simple act of writing something down makes it easier for you to understand and remember it.第二篇1 One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays. The first thing you need to e up with is an idea for your club. 2 Pets, clothes, pop music or dancing groups, sports, making things? The list is endless. Next you need some friends to be in your club with you. 3 All you need is three or four other people who are interested in the same thing as you. 4You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages. At your first meeting you should make up a rule book. And the first rule should be no grownups or little/big brothers or sisters! The best clubs are always secret! Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 5 Why not leave some space for a photo of