问题 解答题

数据100,120,80,130,100,90,150的中位数是130______.

答案

先对这组数据按从小到大的顺序重新排序:80,90,100,100,120,130,150.

此组数据个数是奇数个,位于最中间的数是100,

所以这组数的中位数是100.

故答案为:错误.

完形填空

请先通读短文,掌握其大意,然后从所给的选项中选出最佳选项。

Jack is a boy of fifteen. His parents died 3 years ago. One day when he was walking in the street, he   56  a wallet. He returned it to the owner, Mr. Baker. He gave his    57   to the boy. As the boy had no job, Mr. Baker made him work for him in his    58  . Jack worked so hard that Mr. and Mrs. Baker were    59   with him.

Mr. Baker loved planting    60 . The week before last, he brought a few trees home, planted them in the    61  himself and watered them every day. Several days    62  , he had to leave for another city. Before he started, he said to Jack, “Take good care of these trees. Some boys near our house always want to steal them.” “ Don’t     63   about them, sir.” answered Jack," I’ll try my best to watch them."  Six days passed, and Mr. Baker came back. He asked, “   64   anyone ever stolen the  trees?” “No, sir.” said Jack. “To stop someone from stealing the trees, I    65   them up six days ago. I have hidden them for almost a week.”

小题1:A. bought                     B. found                             C. carried

小题2:A. wallet                        B. pity                                C. thanks 

小题3:A. office                          B. factory                          C. home

小题4: A. pleased                           B. angry                             C. sad

小题5:A.  trees                      B. flowers                         C. vegetables

小题6: A. garden                    B. office                             C. room

小题7:A. ago                             B. later                              C. after

小题8:A. think                           B. talk                                   C. worry

小题9:A. Did                              B. Does                              C. Has

小题10:A. sent                            B. pulled                            C. put

单项选择题