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1. Typical of the grassland1 dwellers2 of the continent is the American antelope3, 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 Haley’s 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？
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, 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 one’s 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, designers 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 slander4 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 joints5 where the thigh6 bone meets 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 corrosive7 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 reputation 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. Essentially8, a theory is an abstract, symbolic9 representation of what is conceived to be reality.
14. Long before children are able to speak or understand a language, they communicate through facial expressions and by making noises.
15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti10 and sagebrush could live.
16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.
17. Anthropology11 is a science in that anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.
18. Fungi12 are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decomposes13 animal debris14.
19. When it is struck, a tuning15 fork produces an almost pure tone, retaining its pitch over a long period of time.
20. Although pecans are most plentiful16 in the southeastern part of the United States, they are found as far north as Ohio and Illinois.
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 event’s occurring is equal to the probability that it will not occur.
24. Most substance contract when they freeze so that the density17 of a substance’s solid is higher than the density of its liquid.
25. The mechanism18 by which brain cells store memories is not clearly understood.
26. By the middle of the twentieth century, painters and sculptors19 in the United States had begun to exert a great worldwide influence over art.
27. In the eastern part of New Jersey20 lies the city of Elizabeth, a major shipping21 and manufacturing center.
28. Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New York Infirmary, 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 became associated with the idea of remembrance.
31. Although apparently22 rigid23, bones exhibit a degree of elasticity24 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 dynamics25 of storms is directed toward improving the ability to predict these events and thus to minimize damage and avoid loss of life.
34. The elimination26 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-century movement in art, rejected all traditions and attempted to glorify27 contemporary life by emphasizing the machine and motion.
36. One of the wildest and most inaccessible28 parts of the United States is the Everglades where wildlife is abundant and largely protected.
37. Lucretia Mott’s influence was 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 marketing29 researcher are frequently much broader than those of the domestic marketer.
39. The continental30 divide refers to an imaginary line in 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 mantle31 yield when unusual weight is placed on them.
41. The annual worth of Utah’s manufacturing is greater than that of its mining and farming combined.
42. The wallflower is so called because its weak stems often grow on walls and along stony32 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 psychology33.
44. No social crusade aroused Elizabeth Williams’ enthusiasm more than the expansion of educational facilities for immigrants to the United States.
45. Quails34 typically have short rounded wings that enable them to spring into full flight instantly when disturbed in their hiding places.
46. According to anthropologists, the earliest ancestors of humans that stood upright resembled chimpanzees facially, with sloping foreheads and protruding35 brows.
47. Not until 1866 was the fully36 successful transatlantic cable finally laid.
48. In his writing, John Crowe Ransom37 describes what he considers the spiritual 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 and gathering38 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 doctrines39 and attitudes whose principal uniting feature is the belief that government is both harmful and unnecessary.
53. Probably no man had more effect on the daily lives of most people in the Untied40 States than did Henry Ford41 a pioneer in automobile42 production.
54. The use of well-chosen nonsense words makes possible the testing of many basic hypotheses in the field of language learning.
55. The history of painting is a fascinating chain of events that probably began with the very first pictures ever made.
56. Perfectly43 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 chief 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, prudent44 navigators learn the sea charts, 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 affect marketing activities.
62. The application of electronic controls made possible by the microprocessor45 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 relatively46 inelastic connective tissues called ligaments.
64. The pigmentation of a pearl is influenced by the type of oyster47 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 mimic48 the songs and calls of many birds, they can nonetheless be quickly identified as mockingbirds by certain aural49 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 dinosaurs50 became extinct, but some theories postulate51 that changers in geography, climate, and sea levels were responsible.
68. The science of horticulture, in which the primary concerns are maximum yield and superior quality, utilizes52 inFORMation derived53 from other sciences.
69. Snow aids farmers by keeping heart in the lower ground levels, thereby54 saving the seeds from freezing.
70. Even though the 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 prehistoric55 times created paints by grinding materials such as plants and clay into power and then adding water.
72. Often very annoying weeds, goldenrods crowd out less hardy56 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 notion of farmers and clerks owning automobiles57 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 beaver58 chews down trees to get food and material with which to build its home.
77. Poodles were once used as retrievers in duck hunting, but the American Kennel59 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 medicine.
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 discerning eye.
81. Television the most pervasive60 and persuasive61 of modern technologies, marked by rapid change and growth, is moving into a new era, an era of extraordinary sophistication and versatility62, which promises to reshape our lives and our world.
82. Television is more than just an electronics; 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 imprisonment63 have more than doubled over the past twenty years, and recidivism------that is the rate for re-arrest------is more than 60 percent.
84. His teaching began at the Massachusetts Institute of Technology, but William Rainey Harper lured64 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 frigid65 in the classroom but sympathetic and understanding in their personal conferences.
85. The sloth66 pays such little attention to its personal hygiene67 that green algae68 grow on its coarse hair and communities of a parasitic69 moth70 live in the depths of its coat producing caterpillars71 which graze on its mouldy hair. Its muscles are such that it is quits incapable72 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 decorative73 purposes. They are made from a variety of materials, such as way and glass, so skillfully that they can scarcely be distinguished74 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 reclaim75 thousands of mine 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, brawling76 business of actually building the lines.
89. Because of the space crunch77, 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 or older, who has lived in the United States for a minimum of fourteen years.
91. Arid78 regions in the southwestern United States have become increasingly inviting79 playgrounds for the growing number of recreation seekers who own vehicles such as motorcycles or powered trail bikes and indulge in hill-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 devour80 all our crops and kill our flocks and herds81, 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 perilous82 nature, equipped in a manner which would make a modern climber shudder83 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 exciting. They have an air of freedom, and they have not a dreary84 commitment to mean ambitions or love comfort. They are not anxious social climbers, and they have no devotion to material things.
97. I am always amazed when I hear people saying that sport creates goodwill85 between the nations, and that if only the common peoples of the world could meet one another at football or cricket, they would have no inclination86 to meet on the battlefield.
98. It is impossible to say simply for the fun and exercise: as soon as the question of prestige arises, as soon as you feel that you and some larger unit will be disgraced if you lose, the most savage87 combative88 instincts are around.
99. It has been found that certain bats emit squeaks89 and by receiving the echoes, they can locate and steer90 clear of obstacles------or locate flying insects on which they feed. This echo-location in bats is often compared with radar91, the principle of which is similar.
100. As the time and cost of making a clip drop to a few days and a few hundred dollars, engineers may soon be free to let their imaginations soar without being penalized92 by expensive failure.
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1
grassland
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| n.牧场，草地，草原 | |
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dwellers
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| n.居民，居住者( dweller的名词复数 ) | |
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antelope
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| n.羚羊；羚羊皮 | |
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slander
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| n./v.诽谤，污蔑 | |
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joints
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| 接头( joint的名词复数 )； 关节； 公共场所（尤指价格低廉的饮食和娱乐场所） （非正式）； 一块烤肉 （英式英语） | |
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thigh
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| n.大腿；股骨 | |
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corrosive
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| adj.腐蚀性的；有害的；恶毒的 | |
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essentially
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| adv.本质上，实质上，基本上 | |
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symbolic
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| adj.象征性的，符号的，象征主义的 | |
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cacti
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| n.（复）仙人掌 | |
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anthropology
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| n.人类学 | |
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fungi
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| n.真菌，霉菌 | |
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decomposes
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| 腐烂( decompose的第三人称单数 )； （使）分解； 分解（某物质、光线等） | |
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debris
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| n.瓦砾堆，废墟，碎片 | |
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tuning
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| n.调谐，调整，调音v.调音( tune的现在分词 )；调整；（给收音机、电视等）调谐；使协调 | |
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plentiful
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| adj.富裕的，丰富的 | |
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density
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| n.密集，密度，浓度 | |
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mechanism
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| n.机械装置；机构，结构 | |
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sculptors
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| 雕刻家，雕塑家( sculptor的名词复数 )； [天]玉夫座 | |
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jersey
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| n.运动衫 | |
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shipping
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| n.船运（发货，运输，乘船） | |
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apparently
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| adv.显然地；表面上，似乎 | |
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rigid
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| adj.严格的，死板的；刚硬的，僵硬的 | |
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elasticity
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| n.弹性，伸缩力 | |
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dynamics
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| n.力学，动力学，动力，原动力；动态 | |
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elimination
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| n.排除，消除，消灭 | |
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glorify
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| vt.颂扬，赞美，使增光，美化 | |
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inaccessible
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| adj.达不到的，难接近的 | |
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marketing
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| n.行销，在市场的买卖，买东西 | |
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continental
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| adj.大陆的，大陆性的，欧洲大陆的 | |
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mantle
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| n.斗篷，覆罩之物，罩子；v.罩住，覆盖，脸红 | |
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stony
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| adj.石头的，多石头的，冷酷的，无情的 | |
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psychology
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| n.心理，心理学，心理状态 | |
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quails
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| 鹌鹑( quail的名词复数 )； 鹌鹑肉 | |
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protruding
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| v.（使某物）伸出，（使某物）突出( protrude的现在分词 )；凸 | |
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fully
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| adv.完全地，全部地，彻底地；充分地 | |
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ransom
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| n.赎金，赎身；v.赎回，解救 | |
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gathering
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| n.集会，聚会，聚集 | |
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doctrines
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| n.教条( doctrine的名词复数 )；教义；学说；（政府政策的）正式声明 | |
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untied
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| 松开，解开( untie的过去式和过去分词 )； 解除，使自由； 解决 | |
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Ford
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| n.浅滩，水浅可涉处；v.涉水，涉过 | |
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automobile
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| n.汽车，机动车 | |
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perfectly
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| adv.完美地，无可非议地，彻底地 | |
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prudent
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| adj.谨慎的，有远见的，精打细算的 | |
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microprocessor
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| n.微信息处理机 | |
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relatively
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| adv.比较...地，相对地 | |
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oyster
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| n.牡蛎；沉默寡言的人 | |
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mimic
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| v.模仿，戏弄；n.模仿他人言行的人 | |
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aural
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| adj.听觉的，听力的 | |
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dinosaurs
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| n.恐龙( dinosaur的名词复数 )；守旧落伍的人，过时落后的东西 | |
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postulate
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| n.假定，基本条件；vt.要求，假定 | |
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utilizes
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| v.利用，使用( utilize的第三人称单数 ) | |
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derived
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| vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取 | |
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thereby
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| adv.因此，从而 | |
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prehistoric
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| adj.（有记载的）历史以前的，史前的，古老的 | |
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hardy
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| adj.勇敢的，果断的，吃苦的；耐寒的 | |
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automobiles
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| n.汽车( automobile的名词复数 ) | |
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beaver
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| n.海狸，河狸 | |
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kennel
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| n.狗舍，狗窝 | |
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pervasive
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| adj.普遍的；遍布的，(到处)弥漫的；渗透性的 | |
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persuasive
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| adj.有说服力的，能说得使人相信的 | |
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versatility
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| n.多才多艺，多样性，多功能 | |
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imprisonment
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| n.关押，监禁，坐牢 | |
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lured
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| 吸引，引诱（lure的过去式与过去分词形式） | |
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frigid
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| adj.寒冷的，凛冽的；冷淡的；拘禁的 | |
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sloth
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| n.[动]树懒；懒惰，懒散 | |
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hygiene
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| n.健康法，卫生学 （a.hygienic） | |
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algae
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| n.水藻，海藻 | |
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69
parasitic
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| adj.寄生的 | |
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70
moth
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| n.蛾，蛀虫 | |
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71
caterpillars
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| n.毛虫( caterpillar的名词复数 )；履带 | |
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72
incapable
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| adj.无能力的，不能做某事的 | |
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73
decorative
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| adj.装饰的，可作装饰的 | |
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74
distinguished
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| adj.卓越的，杰出的，著名的 | |
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75
reclaim
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| v.要求归还，收回；开垦 | |
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76
brawling
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| n.争吵，喧嚷 | |
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77
crunch
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| n.关键时刻；艰难局面；v.发出碎裂声 | |
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78
arid
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| adj.干旱的；(土地)贫瘠的 | |
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79
inviting
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| adj.诱人的，引人注目的 | |
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80
devour
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| v.吞没；贪婪地注视或谛听，贪读；使着迷 | |
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81
herds
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| 兽群( herd的名词复数 )； 牧群； 人群； 群众 | |
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82
perilous
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| adj.危险的，冒险的 | |
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83
shudder
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| v.战粟，震动，剧烈地摇晃；n.战粟，抖动 | |
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84
dreary
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| adj.令人沮丧的，沉闷的，单调乏味的 | |
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85
goodwill
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| n.善意，亲善，信誉，声誉 | |
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86
inclination
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| n.倾斜；点头；弯腰；斜坡；倾度；倾向；爱好 | |
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87
savage
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| adj.野蛮的；凶恶的，残暴的；n.未开化的人 | |
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88
combative
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| adj.好战的；好斗的 | |
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89
squeaks
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| n.短促的尖叫声，吱吱声( squeak的名词复数 )v.短促地尖叫( squeak的第三人称单数 )；吱吱叫；告密；充当告密者 | |
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90
steer
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| vt.驾驶，为…操舵；引导；vi.驾驶 | |
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91
radar
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| n.雷达，无线电探测器 | |
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92
penalized
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| 对…予以惩罚( penalize的过去式和过去分词 )； 使处于不利地位 | |
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