题目内容
Announcement on Beijing Olympic Volunteer Slogan Solicitation (征集)Ⅰ. Starting and ending dates The open solicitation starts from March 31 and ends on August 31, 2006Ⅱ. Requirements of the slogan1.Highly summarizing the concept of Beijing Olympic Volunteer Program — "service first and harmony first" and highlighting the striking feature of the times and the Chinese culture throughout the Beijing Olympic Games.2. Clearly reflecting the idea that "Volunteers’ smiles are the best name card of Beijing".3. Carrying international flavor and catering to the world so that people from different countries and regions and of various cultural backgrounds can understand and accept it. Both the Chinese version and the English one should be equally impressive.4. Being brief, rhythmic, easy to remember, inspiring and appealing. How can-the slogan be accepted by people from different countries and regions and of various cultural backgrounds ______ and catering to the world.
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Section ADirections: This section is to test your ability to give proper responses. There are 5 recorded questions in it. After each question, there is a pause. The questions will be spoken two times. When you hear a question, you should decide on the correct answer from the 4 choices marked A), B), C) and D) given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the centre.
生物群落的发生一般要经过入侵、定居、______和反应等阶段。
If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to maintain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars. Even though scientists develop new ways of feeding the human race, the crowded conditions on earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar sys- tem are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by American scientist, Professor Carl Sagan. Sagan believes that before the earth’s resources are completely exhausted it will be possible to change the atmosphere of Venus. The difficulty is that Venus is much hotter than the earth and there is only a tiny amount of water there. Sagan suggests that algae(藻类) organisms(生物，有机体) that can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be bred in condition similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets. Space- ship will then’ fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the carbon dioxide(二氧化碳) into oxygen and carbon. When the algae have done their work, the atmosphere will become cooler, but before man can set foot on Venus it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on but the rain will eventually fall and in a few years something like earth will be reproduced on Venus. In the long run, the most insoluble problem caused by population growth on earth will proba- bly be the lack of ______.
说出拆模时发现雨篷断裂的原因，并指出预防措施。
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