题目

以下四种细胞工程的技术中，培育出的新个体不具有两个亲本遗传性状的方法是  （     ） A．细胞融合       B．细胞核移植     C．植物的组织培养    D．动物胚胎移植   答案：     C 第二节  完形填空（共20小题；每小题1.5分，满分30分）        阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。        The story I'm going to tell truly happened in my life.        The other day, I met a man outside the gym who  21  a movie star. He was handsome and smiling. His upper body was muscular and he  22  to be on top of the world.        "How are you?" I  23  with a smile. "I'm doing really well," he replied in a cheerful voice. His enthusiasm and big smile  24  the parking garage.   25  as he walked up, I  26  his long legs were thin and I saw he had a silver cane (手杖). "Why do you need that cane?" I couldn't  27  thinking he had a minor injury. "I have MS," he answered in a  28  voice too, as his broad smile  29  left his face. Multiple Sclerosis is a very serious disease and often painful. I looked at him from my little red sports car and said, "You  30  it very well. You seem like a happy man  31 the MS. " Without losing a bit of his smile he replied, "I am a happy man," and then added, "I'd be even happier if I had that sports  32  . "        It was ironic (讽刺的). Just  33  we spoke, I'd been sitting in that little sports car, feeling sad about my painful shoulder over the last 11 months although ! was  34  after an operation. Here's a man with a  35  far tougher than mine, but his positive attitude made him feel no  36  happiness. He went on with his enjoyment of life as usual, which moved me deeply.        It was also a wonderful reminder of that old  37  , "t cried because I had no shoes. Then I met a man who had no feet. "   38  your problems, just keep in  39  that none of us goes through life  40  and like the man with MS, make the most of what you have. Count your blessings. 21．A．stared at                 B．talked about            C．agreed with             D．looked like 22．A．conducted               B．appeared                 C．performed               D．pretended 23．A．questioned              B．advised                   C．complained             D．greeted 24．A．lit up                      B．put up                    C．held up                   D．kept up 25．A．So                         B．And                       C．But                        D．Though 26．A．diagnosed               B．noticed                   C．examined                D．checked 27．A．want                      B．set                          C．wait                       D．help 28．A．cheerful                  B．sad                         C．low                        D．painful 29．A．sometimes                  B．regularly                 C．never                      D．always 30．A．need                       B．handle                    C．demand                  D．deal 31．A．in spite of               B．in return for            C．thanks to                 D．but for 32．A．training                  B．coach                            C．coat                        D．car 33．A．when                      B．until                       C．before                    D．since 34．A．recovering                     B．suffering                 C．repairing                 D．benefiting 35．A．direction                 B．location                  C．situation                 D．position 36．A．fewer                            B．less                        C．further                    D．more 37．A．story                      B．news                      C．saying                    D．lesson 38．A．Whatever                B．However                 C．Whichever              D．Whenever 39．A．head                       B．brain                      C．heart                      D．mind 40．A．completely              B．easily                            C．hardly                    D．lightly