41. In a barter economy, a person having something to trade must make contact with another person ________ and has something acceptable to offer in exchange. A. and who wants it B. wants it C. who wants it D. who does it want
42. The chief justice of the United States is the country’s _________ and is appointed by the President with the approval of the Senate. A. judicial officer highest B. officer judicial highest C. officer highest judicial D. highest judicial officer
43. Including land and water, the state of Alaska ________ an area of 1,530,700 square kilometers, equal to about one-sixth of the size of the United States. A. having B. where there is C. which is D. has
44. _________ until the twelfth century that the magnetic compass was used for navigation. A. Its not being B. It was not C. Not D. Was not
答案：B 分析及考点：强调句型。It was … that … 参考译文：直到20世纪，磁性指南针才被用于航行。
45. Although she wrote only two short novels and 19 stories during her brief career, Flannery O’Connor made _________ to United States fiction. A. a contribution is important B. an important contribution C. a contribution and important D. is an important contribution
46. The New York City Ballet has been _________ of United States classical ballet companies since its inception in 1946. A. the consistently creative most B. consistently creative the most C. most creative the consistently D. the most consistently creative
48. Desktop publishing systems are capable of _________ camera-ready pages made up of text and graphics, with text set in different typefaces and sizes. A. when producing B. produce C. to produce D. producing
答案：D 分析及考点：介词后面跟动名词。be capable of doing sth也是固定搭配。 参考译文：桌面印刷系统能够生产出由文本和图形混合在一起的现成的照相机成像相片，文本还可以设置不同的字体和大小。
49. The femur is the _________ in the body. A. bone is the largest and longest B. largest and the longest bone that C. largest and longest bone D. bone largest and longest and
答案：C 分析及考点：词序问题。中心词是bone。 参考译文：大腿骨是身体中最大和最长的骨头。
50. Spurred by the phenomenal growth of the city of Chicago after the Civil War, Illinois became ________. A. that a major industrial state B. to a major industrial state C. a major industrial state D. to be a major industrial state