题目

某同学在做“利用单摆测重力加速度”实验中，用20分度的游标卡尺测小球直径如图乙所示；小球的直径为______mm.若某次测量时间结果如图甲所示，则秒表的读数是______s.甲 乙 答案：【答案】29.9096.8【解析】游标卡尺的主尺读数为29mm，游标读数为0.05×18 mm＝0.90mm，则最终读数为29.90 mm。秒表小盘读数为90 s，大盘读数为6.8s，则秒表读数为96.8s。 第二节：完形填空（共20小题，每小题1.5分，满分30分。）    The government wanted to put _ 36_  a big office building in the capital and had to choose an engineering company to do __37__  work. Several big companies wanted the job , because it would bring  _38__  a lot of money  __39__  they could get  it , but, of course, they could not all have it, so the government had to decide__40_ of them should be the lucky __41__ .So they appointed (任命，派)  a  government  official to __42__ the various companies’ offers ,  decide which was the most suitable , and then advise the Minister of Works which of them to choose.     After some months, the choice was _43_  and work was about to begin _44__ one of the companies which had not been successful complained(抱怨) to the Minister . They said the official who had been responsible for __45__ him on the choice of a company to do the work had accepted bribes (贿赂)。     The Minister at once ordered an inquiry (调查) into the whole matter, and after a month had __46__ that the official had __47__ taken birbes. He therefore sent for him and asked for __48_ . The official admitted that he had taken big bribes . “But ,” he said , “I did not just take one from the _49__ to which I recommended（推荐） that you __50___ the work. I took a bribe from each company and promised to give them the work. ”    “Well, then,” said the Minister, “__51___ did you finally make your choice? Did you choose the one that gave you the biggest bribe?”     “Certainly __52___ , sir.” answered the official, deeply    53__ that the Minister should scold him __54___ such dishonesty. “I was very careful to take __55___ the same bribe from each of the companies that were trying to get the job, and then choose the one that I thought would do the work best and most cheaply, of course.” 36. A. down        B. out           C. up               D.forward 37. A. a            B. the            C. any             D. x 38. A. that          B. it             C. them            D.what 39. A.because       B. if             C.as               D.before 40. A.one           B. some          C. any             D.which 41. A. job           B. work           C. one            D.companies 42. A.see          B. go over         C. look             D.examine 43. A. made        B. done           C. taken            D. chosen 44. A.when        B. while           C. as               D. before 45. A.asking       B. advising         C.persuading       D.suggesting 46. A. proof        B. question        C.result             D. problem 47. A.probably       B.indeed           C.in fact          D.possibly 48. A. a study     B. a discussion    C.an explanation     D.an examination 49. A. company      B.office             C.official            D.building 50. A. should give    B.would give     C.should have given       D.gave 51. A. Why          B.How             C.What               D.When 52. A. no            B.so               C.yes                 D.not 53. A. thought       B.regarded          C.noticed             D.felt 54. A. for           B.with              C.at                  D.of 55. A. greatly        B.exactly            C.nearly              D.not