题目内容
To use it seems so natural to put up an umbrella to keep the water off when it rains. But actually the umbrella was not invented as protection against rain. Its first use was as a shade against the sun! Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, way back in the eleventh century. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high office. In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans. During the Middle Age, the use of the umbrella practically disappeared. Then it appeared again in Italy in the late sixteenth century. And again it was considered a symbol of power and authority. By 1680, the umbrella appeared in France, and later on in England. By the eighteenth century, the umbrella was used against rain throughout most of Europe. Umbrellas have not changed much in style during all this time, though they have become much lighter. It wasn’t until the twentieth century that women’s umbrellas began to be made, in a whole variety of colors. A strange feature of the umbrella’s use is that it was used as ______.
查看答案
搜索结果不匹配？点我反馈
更多问题
Technology is the application (应用) of knowledge to production. Thanks to modern technology, we have been able to increase greatly the efficiency of our work force. New machines and new methods have helped cut down time and expense while increasing overall output. This has meant more production and a higher standard of living. For most of us in America, modern technology is thought of as the reason why we can have cars and television sets. However, technology has also increased the amount of food available (可供食用的) to us, by means of modern farming machinery and animal breeding techniques, and has extended our life span via (通过) medical technology. Will mankind continue to live longer and have a higher quality of life In large measure the answer depends on technology and our ability to use it wisely. If we keep making progress as we have over the past fifty years, the answer is definitely yes. The advancement of technology depends upon research and development, and the latest statistics (统计) show that the united States is continuing to pump billions of dollars annually (每年) into such efforts. So while we are running out of some scarce resources (稀缺资源) we may well find technological substitutes (代用品) for many of them through our research programs. Therefore, in the final analysis the three major factors of production (land, labor and capital) are all influenced by technology. When we need new skills on techniques in medicine, people will start developing new technology to meet those needs. As equipment proves to be slow or inefficient, new machines will be invented. Technology responds to our needs in helping us maintain our standard of living. Which is the main idea of the passage
College is a place to explore many possibilities, but you really can’t do it all unless you manage your time wisely. Here are some tips I have found very helpful for managing my time and maximizing my study efforts: 1. Determine your goals. What do you want to get out of a college education Academic knowledge Leadership experience within in club Decide what is most important to you. Then devote proportionate amounts of time to those efforts. 2. Plan ahead. You may think you can keep everything in your head, but as the activities on your schedule start piling up, marking a schedule can really help organize even little tasks. 3. Study at strategic times. Don’t wait until you’re falling asleep to study. Study first. Save those e-mails to check later, because tasks that don’t require much energy and attention can still be done when you’re tired. 4. Motivate yourself! You know that TV show you’re been dying to see, or that game of chess you’re been waiting all week to challenge your friend to. There are many other special activities can be used for motivation. Promise yourself that you’ll finish your biology assignment before you go off and "play." The way, you’ll three yourself to work efficiently. (Don’t rush through the assignment, though) 5. Take a nap. Sometimes even a 20-minute nap in the afternoon will give you the extra energy you need to get through the day. Which of the following could be used as a motivation to do our assignments
World Expo 2010 will be held in Shanghai. It will last from May 1st to October 31st, 2010. The Expo site covers a total area of 5.28 km2. It spans both sides of the Huangpu River, with 3.93 km2 in Pudong and 135 km2 in Puxi. There are five functional zones marked A, B, C, D, and E. Each of them has different functions. Zone A will host the national pavilions (国家馆) of Asian countries except southeast Asian ones. Zone B will be home to the China Pavilion and Oceania (大洋洲的) countries, Pavilions for International Organizations, Theme Pavilions, Expo Centre, and Performance Centre, etc. Zone C will host the national pavilions of European, American and African countries. A large public amusement park will be built at the entrance of this zone. Zone D is home to Corporate Pavilions, the land is one of the original places of modern China’s national industry. So some of the old industrial buildings will be kept and renovated (修复) into Expo pavilions. Zone E will host standalone (独立的) Corporate Pavilions, Urban Civilization Pavilion, and Urban Best Practices Area. How long will World Expo 2010 last
World Expo 2010 will be held in Shanghai. It will last from May 1st to October 31st, 2010. The Expo site covers a total area of 5.28 km2. It spans both sides of the Huangpu River, with 3.93 km2 in Pudong and 135 km2 in Puxi. There are five functional zones marked A, B, C, D, and E. Each of them has different functions. Zone A will host the national pavilions (国家馆) of Asian countries except southeast Asian ones. Zone B will be home to the China Pavilion and Oceania (大洋洲的) countries, Pavilions for International Organizations, Theme Pavilions, Expo Centre, and Performance Centre, etc. Zone C will host the national pavilions of European, American and African countries. A large public amusement park will be built at the entrance of this zone. Zone D is home to Corporate Pavilions, the land is one of the original places of modern China’s national industry. So some of the old industrial buildings will be kept and renovated (修复) into Expo pavilions. Zone E will host standalone (独立的) Corporate Pavilions, Urban Civilization Pavilion, and Urban Best Practices Area. If you visit Zone D, ______.
微信支付 
支付宝支付