1、1. Typical of the grassland dwellers of the continent is the American antelope, or pronghorn. 1.美洲羚羊，或称叉角羚，是该大陆典型的草原动物。 2. Of the millions who saw Haleys comet in 1986, how many people will live long enough to see it return in the twenty-first century. 2. 1986 年看见哈雷慧星的千百万人当中，有多少人能够长寿到足以目睹它在二十一世纪的回归呢
2、？ 3. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions. 3.人类学家们已经发现，恐惧，快乐，悲伤和惊奇都会行之于色，这在全人类是共通的。 4. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued. 4.由于苯酚对人体
3、带有刺激性作用，它基本上已不再被当作常用的防腐剂了。 5. In group to remain in existence, a profit-making organization must, in the long run, produce something consumers consider useful or desirable. 5.任何盈利组织若要生存，最终都必须生产出消费者可用或需要的产品。 6. The greater the population there is in a locality, the greater the need there is for water
4、, transportation, and disposal of refuse. 6.一个地方的人口越多，其对水，交通和垃圾处理的需求就会越大。 7. It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure ones meaning. 7.简明，直接，有力的写作难于花哨，含混而意义模糊的表达。 8. With modern offices becoming more mechanized, des
5、igners are attempting to personalize them with warmer, less severe interiors. 8.随着现代办公室的日益自动化，设计师们正试图利用较为温暖而不太严肃的内部装饰来使其具有亲切感。 9. The difference between libel and slander is that libel is printed while slander is spoken. 9.诽谤和流言的区别在于前者是书面的，而后者是口头的。 10. The knee is the joints where the thigh bone mee
6、ts the large bone of the lower leg. 10.膝盖是大腿骨和小腿胫的连接处。 11. Acids are chemical compounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red. 11.酸是一种化合物，它在溶于水时具有强烈的气味和对金属的腐蚀性，并且能够使某些蓝色植物染料变红。 12. Billie Holiday s reputatio
7、n as a great jazz-blues singer rests on her ability to give emotional depth to her songs. 12. Billie Holiday s 作为一个爵士布鲁斯乐杰出歌手的名声建立在能够赋予歌曲感情深度的能力。 13. Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality. 13.理论在本质上是对认识了的现实的一种抽象和符号化的表达。 14. Long before child
8、ren are able to speak or understand a language, they communicate through facial expressions and by making noises. 14.儿童在能说或能听懂语言之前，很久就会通过面部表情和靠发出噪声来与人交流了。 15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live. 15.受当代灌溉(技术设施 )之赐，农作物在
9、原来只有仙人掌和荞属科植物才能生存的地方旺盛的生长。 16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them. 16.机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。 17. Anthropology is a science in that anthropologists use a rigorous set of methods and techniques to document observa
10、tions that can be checked by others. 17.人类学是一门科学，因为人类学家采用一整套强有力的方法和技术来记录观测结果，而这样记录下来的观 测结果是供他人核查的。 18. Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decomposes animal debris. 18.真菌在腐化过程中十分重要，而腐化过程将化学物质回馈于土壤，提高其肥力，并分解动物粪便。 19. When it
11、 is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time. 19.音叉被敲击时，产生几乎纯质的音调，其音量经久不衰。 20. Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois. 20.虽然美洲山河桃树最集中于美国的东南部但是在北至俄亥俄州及
12、伊利诺州也能看见它们。 21. Eliminating problems by transferring the blame to others is often called scape-goating. 22. The chief foods eaten in any country depend largely on what grows best in its climate and soil. 23. Over a very large number of trials, the probability of an events occurring is equal to the p
13、robability that it will not occur. 24. Most substance contract when they freeze so that the density of a substances solid is higher than the density of its liquid. 25. The mechanism by which brain cells store memories is not clearly understood. 26. By the middle of the twentieth century, painters an
14、d sculptors in the United States had begun to exert a great worldwide influence over art. 27. In the eastern part of New Jersey lies the city of Elizabeth, a major shipping and manufacturing center. 28. Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New York In
15、firmary, an institution that has always had a completely female medical staff. 29. Alexander Graham Bell once told his family that he would rather be remembered as a teacher of the deaf than as the inventor of the telephone. 30. Because its leaves remain green long after being picked, rosemary becam
16、e associated with the idea of remembrance. 31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact. 32. That xenon could not form chemical compounds was once believed by scientists. 33. Research into the dynamics of storms is dir
17、ected toward improving the ability to predict these events and thus to minimize damage and avoid loss of life. 34. The elimination of inflation would ensure that the amount of money used in repaying a loan would have the same value as the amount of money borrowed. 35. Futurism, an early twentieth-ce
18、ntury movement in art, rejected all traditions and attempted to glorify contemporary life by emphasizing the machine and motion. 36. One of the wildest and most inaccessible parts of the United States is the Everglades where wildlife is abundant and largely protected. 37. Lucretia Motts influence wa
19、s so significant that she has been credited by some authorities as the originator of feminism in the United States. 38. The activities of the international marketing researcher are frequently much broader than those of the domestic marketer. 39. The continental divide refers to an imaginary line in
20、the North American Rockies that divides the waters flowing into the Atlantic Ocean from those flowing into the Pacific. 40. Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them. 41. The annual worth of Utahs manufacturing is greater
21、 than that of its mining and farming combined. 42. The wallflower is so called because its weak stems often grow on walls and along stony cliffs for support. 43. It is the interaction between people, rather than the events that occur in their lives, that is the main focus of social psychology. 44. N
22、o social crusade aroused Elizabeth Williams enthusiasm more than the expansion of educational facilities for immigrants to the United States. 45. Quails typically have short rounded wings that enable them to spring into full flight instantly when disturbed in their hiding places. 46. According to an
23、thropologists, the earliest ancestors of humans that stood upright resembled chimpanzees facially, with sloping foreheads and protruding brows. 47. Not until 1866 was the fully successful transatlantic cable finally laid. 48. In his writing, John Crowe Ransom describes what he considers the spiritua
24、l barrenness of society brought about by science and technology. 49. Children with parents whose guidance is firm, consistent, and rational are inclined to possess high levels of self- confidence. 50. The ancient Hopewell people of North America probably cultivated corn and other crops, but hunting
25、and gathering were still of critical importance in their economy. 51. Using many symbols makes it possible to put a large amount of information on a single map. 52. Anarchism is a term describing a cluster of doctrines and attitudes whose principal uniting feature is the belief that government is bo
26、th harmful and unnecessary. 53. Probably no man had more effect on the daily lives of most people in the Untied States than did Henry Ford a pioneer in automobile production. 54. The use of well-chosen nonsense words makes possible the testing of many basic hypotheses in the field of language learni
27、ng. 55. The history of painting is a fascinating chain of events that probably began with the very first pictures ever made. 56. Perfectly matched pearls, strung into a necklace, bring a far higher price than the same pearls told individually. 57. During the eighteenth century, Little Turtle was chi
28、ef of the Miami tribe whose territory became what is now Indiana and Ohio. 58. Among almost seven hundred species of bamboo, some are fully grown at less than a foot high, while others can grow three feet in twenty-four hours. 59. Before staring on a sea voyage, prudent navigators learn the sea char
29、ts, study the sailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter. 60. Of all the economically important plants, palms have been the least studied. 61. Buyers and sellers should be aware of new developments in technology can and does af
30、fect marketing activities. 62. The application of electronic controls made possible by the microprocessor and computer storage have multiplied the uses of the modern typewriter. 63. The human skeleton consists of more than two hundred bones bound together by tough and relatively inelastic connective
31、 tissues called ligaments. 64. The pigmentation of a pearl is influenced by the type of oyster in which it develops and by the depth, temperature, and the salt content of the water in which the oyster lives. 65. Although mockingbirds superbly mimic the songs and calls of many birds, they can nonethe
32、less be quickly identified as mockingbirds by certain aural clues. 66. Not only can walking fish live out of water, but they can also travel short distances over land. 67. Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea le
33、vels were responsible. 68. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes information derived from other sciences. 69. Snow aids farmers by keeping heart in the lower ground levels, thereby saving the seeds from freezing. 70. Even though t
34、he precise qualities of hero in literary words may vary over time, the basic exemplary function of the hero seems to remain constant. 71. People in prehistoric times created paints by grinding materials such as plants and clay into power and then adding water. 72. Often very annoying weeds, goldenro
35、ds crowd out less hardy plants and act as hosts to many insect pests. 73. Starting around 7000 B.C., and for the next four thousand years, much of the Northern Hemisphere experienced temperatures warmer than at present. 74. When Henry Ford first sought financial backing for making cars, the very not
36、ion of farmers and clerks owning automobiles was considered ridiculous. 75. Though once quite large, the population of the bald eagle across North America has drastically declined in the past forty years. 76. The beaver chews down trees to get food and material with which to build its home. 77. Pood
37、les were once used as retrievers in duck hunting, but the American Kennel Club does not consider them sporting dogs because they are now primarily kept as pets. 78. As a result of what is now know in physics and chemistry, scientists have been able to make important discoveries in biology and medici
38、ne. 79. The practice of making excellent films based on rather obscure novels has been going on so long in the United States as to constitute a tradition. 80. Since the consumer considers the best fruit to be that which is the most attractive, the grower must provide products that satisfy the discer
39、ning eye. 81. Television the most pervasive and persuasive of modern technologies, marked by rapid change and growth, is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world. 82. Television is more than just an electronics;
40、it is a means of expression, as well as a vehicle for communication, and as such becomes a powerful tool for reaching other human beings. 83. Even more shocking is the fact that the number and rate of imprisonment have more than doubled over the past twenty years, and recidivism-that is the rate for
41、 re-arrest-is more than 60 percent. 84. His teaching began at the Massachusetts Institute of Technology, but William Rainey Harper lured him to the new university of Chicago, where he remained officially for exactly a generation and where his students in advanced composition found him terrifyingly f
42、rigid in the classroom but sympathetic and understanding in their personal conferences. 85. The sloth pays such little attention to its personal hygiene that green algae grow on its coarse hair and communities of a parasitic moth live in the depths of its coat producing caterpillars which graze on i
43、ts mouldy hair. Its muscles are such that it is quits incapable of moving at a speed of over a kilometer an hour even over the shortest distances and the swiftest movement it can make is a sweep of its hooked arm. 86. Artificial flowers are used for scientific as well as for decorative purposes. The
44、y are made from a variety of materials, such as way and glass, so skillfully that they can scarcely be distinguished from natural flowers. 87. Three years of research at an abandoned coal mine in Argonne, Illinois, have resulted in findings that scientists believe can help reclaim thousands of mine
45、disposal sites that scar the coal-rich regions of the United States. 88. When the persuading and the planning for the western railroads had finally been completed, the really challenging task remained: the dangerous, sweaty, backbreaking, brawling business of actually building the lines. 89. Because
46、 of the space crunch, the Art Museum has become increasingly cautious in considering acquisitions and donations of art, in some cases passing up opportunities to strengthen is collections. 90. The United States Constitution requires that President be a natural-born citizen, thirty-five years of age
47、or older, who has lived in the United States for a minimum of fourteen years. 91. Arid regions in the southwestern United States have become increasingly inviting playgrounds for the growing number of recreation seekers who own vehicles such as motorcycles or powered trail bikes and indulge in hill-
48、climbing contests or in caving new trails in the desert. 92. Stone does decay, and so tools of long ago have remained when even the bones of the man who made them have disappeared without trace. 93. Insects would make it impossible for us to live in the world; they would devour all our crops and kil
49、l our flocks and herds, if it were not for the protection we get from insect-eating animals. 94. It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner which would make a modern climber shudder at the thought, but they did not go out of their way to court such excitement. 95. There is only one difference between an old man and a young one: the young man has a glorious future before him and old one has a splendid future behind him: and maybe that is where the rub is. 96. I find young people exciti
