题目

 在“探究物质质量与体积的关系”实验中，某小组同学分别用甲、乙两种不同的液态物质做实验。实验时，他们用量筒和天平分别测出甲、乙的体积及质量，记录数据如表一、表二所示。    ① 分析比较实验序号1、2与3（或4、5与6）的数据及相关条件，可得出的初步结论是：________________________________。② 分析比较实验序号__________________________的数据及相关条件，可得出的初步结论是：相同体积的不同物质，它们的质量是不相同的。③ 进一步综合分 完形填空。      As an exchange student, I have been staying in a host family in Beijing for the past five months. Theparents are  1  in their mid-30s and the son just turned 5. In exchange for room and board, I teach their son  2 .      Like in many of the other Chinese families, he's an only child. And though he has  3  plastic trucks and boxes full of crayons, I don't know  4  he has the time to play. When he's not in the kindergarten, he's taking after-school classes. On the weekends, the boy goes to more classes. He has one day off―Sunday.      Compared to his schedule, I feel like my childhood was  5  a waste of time. I learned how to climb trees and draw cartoons. I wasn't learning Chinese at his age. But he and lots of other children are learning English.Both his parents dream that he will have  6  jobs, higher pay, and bigger houses.      The boy seems to take no interest  7  learning English. He doesn't need a teacher, but a playmate. He is,  8 , only 5. When I think about my life as a 5-year-old, I know for sure I wasn't half as  9  as he is.      In the evening, when his parents  10   him to speak with me in English, he gets  11 . He lies on the floors, hides under the table and climbs on the furniture. When he finally stops  12 , and starts talking, it isn't inEnglish, but it isn't in Chinese,  13 . He speaks in his own language.      He  14  not be a very good student, but I'm not a great teacher. I just want to be his big brother  15   can speak in gibberish (胡言乱语) with him and help draw trucks, robots or spiders. (     )1. A. both         (     )2. A. drawing     (     )3. A. a hundred of (     )4. A. when         (     )5. A. hardly       (     )6. A. more         (     )7. A. with         (     )8. A. after all   (     )9. A. busily       (     )10. A. make       (     )11. A. frustrated (     )12. A. move       (     )13. A. too         (     )14. A. can         (     )15. A. who         B. all       B. Chinese   B. hundreds ofB. what       B. never     B. fewer     B. in         B. at all     B. busiest   B. push       B. relaxed   B. to move   B. also       B. may       B. whom       C. either     C. English     C. hundred of C. where       C. usually     C. better     C. for         C. first of allC. busier     C. have       C. pleased     C. moving     C. as well     C. must       C. whose       D. none         D. playing      D. hundreds     D. that         D. almost       D. worse        D. on           D. all the time D. busy         D. let          D. injured      D. moved                                      D. either       D. need         D. which