【正文】 lies the city of Elizabeth, a major shipping and manufacturing center. ，一個重要的航運和制造業(yè)中心，坐落于新澤西州的東部。 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. ，某一事件發(fā)生的幾率等于它不發(fā)生的幾率。 19. When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time. ，產生幾乎純質的音調，其音量經久不衰。 15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live. (技術設施)之賜，農作物在原來只有仙人掌和蕎屬科植物才能生存的地方旺盛的生長。 11. Acids are chemical pounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red. ，它在溶于水時具有強烈的氣味和對金屬的腐蝕性，并且能夠使某些藍色植物染料變紅。 7. It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure one’s meaning. ，直接，有力的寫作難于花哨，含混而意義模糊的表達。 2. Of the millions who saw Haley’s et in 1986, how many people will live long enough to see it return in the twentyfirst century. 2. 1986年看見哈雷慧星的千百萬人當中，有多少人能夠長壽到足以目睹它在二十一世紀的回歸呢？ 3. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions. ，恐懼，快樂，悲傷和驚奇都會行之于色，這在全人類是共通的。 4. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued. ，它基本上已不再被當作常用的防腐劑了。 8. With modern offices being more mechanized, designers are attempting to personalize them with warmer, less severe interiors. ，設計師們正試圖利用較為溫暖而不太嚴肅的內部裝飾來使其具有親切感。 12. Billie Holiday’s reputation as a great jazzblues singer rests on her ability to give emotional depth to her songs. 12. Billie Holiday’s作為一個爵士布魯斯樂杰出歌手的名聲建立在能夠賦予歌曲感情深度的能力。 16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them. ，以便校準機械計時器。 20. Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois. 。 24. Most substance contract when they freeze so that the density of a substance’s solid is higher than the density of its liquid. ，所以他們的密度在固態(tài)時高于液態(tài)。 28. Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New York Infirmary, an institution that has always had a pletely female medical staff. 28. Elizabeth Blackwell，美國第一個女醫(yī)生，創(chuàng)建了員工一直為女性紐約診所。 32. That xenon could not FORM chemical pounds was once believed by scientists. ：氙氣是不能形成化合物的。拒絕一切傳統(tǒng)，試圖通過強調機械和動態(tài)來美化生活。 39. The continental 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. ，該線把大西洋流域和太平洋流域區(qū)分開來。 43. It is the interaction between people, rather than the events that occur in their lives, that is the main focus of social psychology. ，而不是他們各自生活中的事件。 47. Not until 1866 was the fully successful transatlantic cable finally laid. 。 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 both harmful and unnecessary. ，它們的主要共同點在于相信政府是有害的，沒有必要的。 56. Perfectly matched pearls, strung into a necklace, bring a far higher price than the same pearls told individually. ，串成一條項鏈，就能賣到比單獨售出好得多的價錢。 60. Of all the economically important plants, palms have been the least studied. ，棕櫚樹得到的研究最少。 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