题目

若三直线2x＋3y＋8＝0，x－y－1＝0，x＋ky＋k＋＝0能围成三角形，则k不等于________． 答案：、－1和－ 第二节 完型填空（共20小题；每小题1分，满分20分）     阅读下面短文，掌握其大意，然后从41—60各题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上将选项的标号涂黑。 After the birth of my second child, I got a job at a restaurant. Having worked with an experienced 41   for a few days. I was   42   to wait tables on my own. All went   43  that first week. When Saturday night came,  I was luckily   44    the tables not far from the kitchen.   45  , I still felt it a little hard to carry the heavy trays(托盘).             Before I knew it, the   46   was full of people. I moved slowly,   47   every step. I remember how   48   I was when I saw the tray stand near the tables; it looked different from the one I was   49   on. It had nice handles, which made it   50   to move around. I was pleased with everything and began to   51   I was a natural at this job.             Then, an old man came to me and said, “Excuse me, dear, my wife and I loved   52   you work. It seems your tray stand has been very   53   to you, but we are getting ready to   54   now, and my wife needs her   55   back.”            At first his   56   did not get across. “What was he talking about!” Then, I got it. I had set my trays on his wife’s orthopedic walker(助步器). I stood frozen as ice, but my face was   57 . I wanted to get into a hole and   58  .            Since then, I have learned from many mistakes such as the one I just    59  . I have learned to be more   60   and not to be too sure of myself. 41. A. manager                      B. assistant               C. cook                        D. waitress 42. A. promised                 B. invited                    C. allowed                  D. advised 43. A. well                           B. quickly          C. safely                     D. wrong 44. A. left                                      B. given                      C. brought                 D. shown 45. A. Therefore                B. However               C. Otherwise             D. Finally 46. A. kitchen                     B. street                     C. restaurant            D. table 47. A. minding              B. changing               C. taking                     D. saving 48. A. angry                        B. calm                        C. sad                          D. happy 49. A. fixed                          B. trained                            C. loaded                    D. waited 50. A. slower                      B. lighter                    C. quieter                            D. easier 51. A. believe                     B. agree                     C. regret                    D. pretend 52. A. letting                      B. making                   C. watching               D. having 53. A. useful                       B. familiar                  C. unusual                  D. interesting 54. A. rest                      B. order                      C. eat                          D. leave 55. A. bag                     B. walker                    C. tray                         D. coat 56. A. idea                           B. praise                     C. message               D. need 57. A. cold                           B. full of joy                C. pale                        D. on fire 58. A. lie                              B. hide                        C. defend                   D. stay 59. A. repeated                     B. discovered            C. corrected              D. described 60. A. clever          B. patient                            C. honest                   D. practical