【正文】 。 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. 29. Alexander Graham Bell曾告訴家人，他更愿意讓后人記住他是聾子的老師，而非電話的發(fā)明者。 31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact. ，但它也有一定的彈性，使得骨骼能夠承受相當?shù)拇驌簟?33. Research into the dynamics of storms is directed toward improving the ability to predict these events and thus to minimize damage and avoid loss of life. 　 ，避免人員傷亡。 35. Futurism, an early twentiethcentury movement in art, rejected all traditions and attempted to glorify contemporary life by emphasizing the machine and motion. ，二十世紀早期的一個藝術(shù)思潮。 36. One of the wildest and most inaccessible parts of the United States is the Everglades where wildlife is abundant and largely protected. 36. Everglades是美國境內(nèi)最為荒涼和人跡罕至的地區(qū)之一，此處有大量的野生動植物而且大多受(法律)保護。 38. The activities of the international marketing researcher are frequently much broader than those of the domestic marketer. 。 40. Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them. ，在不尋常的負荷之下地殼和地幔會發(fā)生位移。 42. The wallflower is so called because its weak stems often grow on walls and along stony cliffs for support. ，是因為其脆弱的枝干經(jīng)常要靠墻壁或順石崖生長，以便有所依附。 44. No social crusade aroused Elizabeth Williams’ enthusiasm more than the expansion of educational facilities for immigrants to the United States. Williams的熱情。 46. According to anthropologists, the earliest ancestors of humans that stood upright resembled chimpanzees facially, with sloping foreheads and protruding brows. ，直立行走的人的鼻祖面部輪廓與黑猩猩相似，額頭后傾，眉毛突出。 48. In his writing, John Crowe Ransom describes what he considers the spiritual barrenness of society brought about by science and technology. 48. John Crowe Ransom在他的著作中描述了他認為是由科學技術(shù)給社會帶來的精神貧困。 50. The ancient Hopewell people of North America probably cultivated corn and other crops, but hunting and gathering were still of critical importance in their economy. ，但打獵和采集對他們的經(jīng)濟貿(mào)易仍是至關(guān)重要的。 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. 。 55. The history of painting is a fascinating chain of events that probably began with the very first pictures ever made. ，其源頭大概可以上溯到最早的圖畫。 57. During the eighteenth century, Little Turtle was chief of the Miami tribe whose territory became what is now Indiana and Ohio. ，“小烏龜”是邁阿密部落的酋長，該部落的地盤就是今天的印第安那州和俄亥俄州。 59. Before staring on a sea voyage, prudent navigators learn the sea charts, study the sailing directions, and memorize lighthouse locations to prepare themselves for any conditions they might encounter. ，會研究航向，記錄的燈塔的位置，以便對各種可能出現(xiàn)的情況做到有備無患。 61. Buyers and sellers should be aware of new developments in technology can and does affect marketing activities. ，原因很簡單，因為技術(shù)能夠并且已經(jīng)影響著營銷活動。 63. The human skeleton consists of more than two hundred bones bound together by tough and relatively inelastic connective tissues called ligaments. ，住些骨頭石油堅韌而相對缺乏彈性的，被稱為韌帶的結(jié)蒂組連在一起。 65. Although mockingbirds superbly mimic the songs and calls of many birds, they can nonetheless be quickly identified as mockingbirds by certain aural clues. ，但人類還是能夠依其聲音上的線索很快識別它們。 67. Scientists do not know why dinosaurs became extinct, but some theories postulate that changers in geography, climate, and sea levels were responsible. ，但是一些理論推斷是地理，氣候和海平面的變化造成的。 69. Snow aids farmers by keeping heart in the lower ground levels, thereby saving the seeds from freezing. ，因為它保持地層土壤的溫度，使種子不致凍死。 71. People in prehistoric t