题目

已知豌豆种皮灰色(G)对白色(g)为显性，子叶黄色(Y)对绿色(y)为显性。如以基因型ggyy的豌豆为母本，与基因型GgYy的豌豆杂交，则母本植株所结籽粒的表现型为( ) A．全是灰种皮黄子叶 B．灰种皮黄子叶，灰种皮绿子叶，白种皮黄子叶，白种皮绿子叶 C．全是白种皮黄子叶 D．白种皮黄子叶、白种皮绿子叶 答案：DIn Glasgow, Scotland, a young lady, like a lot of teens today, got tired of home. The daughter objected to her family’s    1     lifestyle and said, “I don’t want your God. I am leaving !”        She left home .Before long, she was disappointed and unable to find a job, so she took to the streets to do everything she could to  2   money. Many years passed by , her father died , her mother grew    3   , and the daughter became more and more entrenched （固执） in her way of life .        No contact was made between mother and daughter during these years. The mother, having    4     her daughter’s whereabouts , went to the poor part of the city in   5    of her daughter . She stopped at each of the rescue missions with a simple    6     . “Would you allow me to      7      this picture?” It was a picture of the smiling , gray-haired mother with a handwritten 8     at the bottom : “I love you still…come home !”        One day the daughter wandered into a rescue mission for a hot meal . She sat    9     listening to the service , all the while letting her   10     wander over to the bulletin board . There she saw the picture and thought , could that be my mother ?        She couldn’t    11     until the service was over . She stood and went to look .It was her mother , and there were those words , “I love you still…come home !”   12     she stood in front of the picture , she wept . It was too    13    to be true .        It was night, but she was so     14   by the message that she started walking home. 15   the time she arrived it was early in the morning. She was afraid and    16     her way timidly . As she knocked , the door    17     open on its own . She thought someone must have broken into the house . Concerned for her mother’s   18     , the young woman ran to the bedroom and shook her mother awake and said, “It’s me ! It’s me ! I’m home!”        The mother couldn’t believe her eyes . They fell into each other’s arms . The daughter said , “I was so worried and   19     someone had broken in.” The mother replied gently , “No, dear . From the day you left , that door has never been   20    .” 1．A．shabby                     B．religious                 C．awful                            D．simple 2．A．earn                        B．win                        C．offer                      D．approach 3．A．lonelier                    B．slower                   C．elder                       D．older 4．A．told about             B．heard of                 C．learned from           D．informed of 5．A．sight                     B．charge                   C．search                   D．want 6．A．request                    B．remark                   C．question                  D．speech 7．A．bring up                   B．lay off                    C．drop out                 D．put up 8．A．record                     B．advice                     C．message                 D．notice 9．A．constantly                 B．absent-mindedly       C．frequently               D．carefully 10．A．eyes                       B．hands                     C．thoughts                 D．imaginations 11．A．help                        B．evaluate                  C．wait                       D．consult 12．A．After                      B．Since                      C．Until                       D．As 13．A．lucky                      B．good                       C．skeptical                 D．coincidence 14．A．astonished               B．touched                  C．blamed                   D．ashamed 15．A．By                          B．At                          C．During                    D．Before 16．A．walked                   B．led                          C．made                      D．held 17．A．seemed                   B．blew                       C．proved                    D．flew 18．A．safety                     B．anxiety                    C．danger                    D．relief 19．A．observed                 B．realized                   C．found                     D．thought 20．A．adopted                  B．opened                    C．locked                    D．fixed