rcises.doc

Exercises1. It is nothing else than impurities prenatally inherent in ore that seriously affect the quality of the latter，which is formed as a result of geological vicissitudes including diastrophic movement，eruption of volcano，sedimentation，glaciations and weathering etc.，under the action of which gynogenic rocks，volcanic complex，aqueous rocks，sedimentary rocks etc.，come into being，some of which exist in a stage of symbiosis，the main cause of the absence of pure rocks in nature，wherein lies the reason for the need of separation technology and apparatus，namely，ore-dressing devices and equipment，（which has been）so far impotent to meet the requirements of metallurgical industry the scientists make every endeavor to elevate to a new high by laser separation.矿石是由地质变化形成的，这些地质变化包括地壳变迁运动、火山爆发、沉积作用、冰川作用和风化作用等。在上述地质变化的作用下，形成了火成岩、火山杂岩、水成岩和沉积岩等。正是岩石中的天然固有杂质严重地影响了矿石的质量。上述这些岩石中，有些处于共生状态，这也是自然界没有天然纯矿石的主要原因。人们之所以需要矿石分离技术与器械，即选矿装置与设备，其原因盖出于此。迄今为止，分离技术和器械尚远不能满足冶金工业的需要，科学家们正全力以赴，利用激光分离机把冶金工业提高到一个新水平。2. The momentum is building ahead of next months G8 summit in Scotland where the leaders of the worlds richest nations will debate what they can do to help some of the worlds poorest.下个月在苏格兰举行的八国峰会上，世界上最富有国家的领导人将会讨论他们能为世界上最贫穷的国家做些什么。而在峰会召开的前一个月，这种发展势头就有了征兆。Momentum: force that increase the rate of development of a process；impetus 势头3. Of course, some African gained from this period. Chiefs who sold their enemies to the European or Arab slavers, for example, and coastal people who creamed a little off the colonial trade which flowed through their land.当然，一些非洲人在这段时间也赚了一笔。例如，把敌人卖到欧洲或阿拉伯国家去做奴隶的酋长们，以及当殖民贸易者路过他们的地盘时揩点“小油“的沿岸居民。4. Young Swain sneaked into the gallery one afternoon and blushed to the top of his ears when he saw “Trees Dressed in White”, a loud raucous splash on the wall. （叙事原则）一天下午，年轻的思维恩瞧瞧地溜进画廊。走到一幅题为“银装之树”的画前，发现那不过是一滩挂在墙上的墨迹，耳朵仿佛也被刺得嗡嗡直响。他的脸一下子红到了耳根。5. New York has the Statue of Liberty, Paris has its Eiffel Tower and Copenhagen has this pretty, charming maiden who stares dreamily out across the water, just as her Danish countrymen have done for thousands of years.纽约有自由女神像，法国有埃菲尔铁塔，而哥本哈根有这位美丽而迷人的少女，她如梦幻似的凝视着远方的海绵，一如她的丹麦同胞数千年所做的那样。6. There is nothing more disappointing to a hostess who has gone to a lot of trouble or expense than to have her guest so interested in talking politics or business with here husband that he fails to notice the flavor of the coffee, the lightness of the cake, or the attractiveness of the house, which may be her chief interest and pride. （叙事原则）女主人用了很多心思，也花了很多费用，准备好香喷喷的咖啡和松软的糕点，并将屋内陈设装扮得极有特色。虽然她对此饶有兴趣并引以为自豪，但她的客人对此却视若无睹，只顾与丈夫谈政治谈生意。还有什么比这更让她失望的呢？7. A long standing reticence, perhaps born of national abhorrence of monarchies and kings, kept faces and portraits off United States coins. As a regular practice until 1909, the centennial of Abraham Lincolns birth. (论理原则)或许是国民长期以来处于对独裁和君主的憎恨，美国人一直不情愿在钱币上刻印肖像和人物。这一惯例一直持续到1909年，即亚伯拉罕林肯诞辰100周年时，才被打破。8. Attracting specialized, career-focused students is one reason Stanford University Medical Center overhauled its curriculum and required students to pick a concentration by the end of there first year. （论理原则）斯坦福大学重新调整了课程体系，并要求学生在第一学期结束时选择专业方向，其目的之一便是为了吸引想要细化专业、确定职业的学生。9. The deserted mining village, protruding pitheads overgrown with tall trees and rusty refineries behind crumbling walls situated in valleys, were surrounded by thick wooded mountain slopes, hot springs gushing out here and there. （空间视角原则）这个废弃的采矿村子四周群山环抱，山上树林密布，温热的泉水随处涌出，在山谷里面，突兀着的矿井口上长着参天大树，破败的屋墙后面是锈迹斑斑的冶炼设备。10. Joan Werblun, volunteer executive director for Citizens for the Right to Know, said Stanfords experiment, if widely copied, could encourage specialization when managed healthcare increasingly “shuttles people to the general practitioner.” （对比原则）“市民有权知道”组织的志愿执行主任琼沃布伦说，现在的管理医保体制不断推出的是普通医生；如果斯坦福的课程试验为众多学校效仿，则会促进专门医生的培养。11. Her (Mrs. Thatcher) rise, as she once described the star-is-born press coverage that greeted her maiden speech in Commons, was “roses, roses all the way.” （对比原则）新闻界在报道她第一次在下院发表的演说并对其表示赞许时说她是一颗已经诞生的新星；撒切尔夫人在描述这一报道时说，她是沿着一条“铺满玫瑰的路”冉冉升起的。12. I , wrapped from him in a confused mist of time, was wondering what he could think, could he know that at this actual moment he would have been dead thirty years, and that his memory would be thus persevered and honored in the beloved school, where his delicate spirit had been so strangely troubled. （对比原则）我对他的思绪沉浸在那繁跌不清的时间迷雾中。我思忖着，在他逝世后的30年的此时此刻，如果他能知道，在这受人爱戴的母校里，在这曾让他那敏感的心灵受到莫名扰动的地方，人们是这样怀念他、称誉他，他会做何感想呢？13. Physicians in training must learn a staggering array of facts required by the Liaison Committee on Medical Education, North Americas accrediting authority for medical schools. 在北美，对医科学生确认行医资格的机构是医学教育联络委员会，它要求在学的医生必须熟记大量的材料。14. Multitudes of bees used to bury themselves in the yellow blossoms of the summer squashes. This, too, was deep satisfaction; although, when they had laden themselves with sweets, they flew away to some unknown hive, which could give back nothing in requital of what my garden had contributed.在夏天，成群结队的蜜蜂则喜欢一头扎进黄色的南瓜花里。当它们载满了蜜汁，便会飞到那些我无从知晓的巢穴中，不再对我花园的奉献做任何答谢。而我，依然是深深的心满意足。15. The existence of giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of the cosmos.宇宙爆炸理论是20世纪20年代首次提出的，在解释宇宙起源的诸多理论中，这一理论占据了主导地位。而巨星云的存在说对于该理论又几乎是不可缺少的。16. By 2001, the population of the United States will be at least 250 million and possibly 270 million, and the nation will find it difficult to expand food production to fill the additional mouths. This will be particularly true sine energy pinch will make it difficult to continue agriculture in the high-energy American fashion that makes it possible to combine few farmers with high yields.到2001年，美国人口至少会有2.5亿到2.7亿。那时美国会发现，为了养活新增人口而扩大粮食生产将会是十分困难。虽然在美国投入少数农民就可以获得农业高产，但由于能源匮乏，这种以高消耗为基础的耕作方式将难以维持，因而食品短缺这一困境将是必定无疑的。17. 中国目前的教育制度可以分为四个阶段：学前教育，也就是托儿所和幼儿园阶段，然后从六岁开始，六年小学，六年中学和四年大学。At present，Chinese educational system can be divided into four stages. Preschool education refers to the period of going to nurseries and kindergartens. School age begins at six. Primary education lasts for six years，so does the secondary education. And it takes four years for students to finish tertiary education.18. 20世纪上半叶的上海曾经是中国工业、贸易、金融和商业的中心，有着远东大都会浪漫而传奇的历史，吸引过不少外来资本，因而一度成为“冒险家的乐园”。In the first half of last century Shanghai served as the industrial，trade，financial and commercial center of the country. It attracted many foreign investors as mysterious Oriental metropolis and an adventurers paradise.19. 历来只有真正老实的劳动者，才懂得劳动生产财富的道理，才能排除一切想入非非的发财思想，而踏踏实实地用自己的辛劳劳动，为社会也为自己创造财富和积累财富。Throughout the ages only honest laboring people see the truth that wealth is created through labor. Only they can free their minds of any fantastic ideas of getting rich. And only they create and accumulate wealth for both society and themselves through practical work.20. 实行对外开放是中国推进现代化建设的一项重大决策，也是中国一项长期的基本国策。Opening-up to the outside world is a major decision China has made to advance its modernization drive