2021年人教版七年级数学下册第6章实数单元检测考试测试卷(无答案).pdf

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1、七下 第六章 实数单元检测班级：_姓名：_学号：_成绩：_ 一选择题1 下列各数中，2，722，0.123123123，2.0，0.1010010001 （相邻两个 1 中间一次多 1 个 0）中，无理数有（）A2 个B3 个C 4 个D5 个2下列各组数中互为相反数的是（）A2 与B2 与C2 与D2 与|2|3已知5)(2x，则 x 的值为（）A5 B5 C5 D以上都不对4、在下列各式中正确的是（）A、2)2(2 B、93 C、168 D、222 5、估计76的值在哪两个整数之间（）A、75 和 77 B、6 和 7 C、7 和 8 D、8 和 9 6、下列各组数中，互为相反数的组是（）

2、A、2 与2)2(B、2 和38C、21与 2 D、2和 2 7.已知下列命题：若ab，则ca0，则?2a；其中原命题与逆命题均为真命题的个数是()A.2 个B.1 个C.0 个D.-1个8.正方体 A的体积是正方体B的体积的27 倍，那么正方体A的棱长是正方体B的棱长的(B)3.141327精品w o r d 可编辑资料-第 1 页，共 4 页-A2 倍B3 倍C 4 倍D5 倍9.实数a,b,c在数轴上对应的点如下图所示,则下列式子中正确的是()A.acbcB.|ab|abC.abbc10估算 9的值，下列结论正确的是（）A4 和 5 之间B5 和 6 之间C6 和 7 之间D7 和 8

3、之间二填空题（共6 小题）11算术平方根等于它本身的数是12将一组数，2，2，4按下面的方式进行排列：，2，2，；2，4，3，2；，2，2，；若 2的位置记为（1，4），的位置记为（3，3），则这组数中最大的有理数的位置记为13比较大小：（用“”或“”填空）14若实数x，则 x 可取的最大整数是15实数 a、b 在数轴上的位置如图所示，则化简2|a+b|ab|的结果为16.已知 2b+1 的平方根为 3，3a+2b1 的算术平方根为4，则 2b3a 的立方根是_精品w o r d 可编辑资料-第 2 页，共 4 页-文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T

4、10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S

5、9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3

6、V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W

7、4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L

8、4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4

9、S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C

10、5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10三、解答题17.定义：若ABm，则称A与 B 是关于m的关联数 例如：若2AB,则称A与B 是关于 2 的关联数;（1）若 3 与a是关于 5 的关联数,求a的值（2）若21x与35x是关于 4 的关联数，求x的值（3）若M与N是关于m的关联数,33Mmnn，N的值与m无关，求N的值18.计算：（1）|4|7（8）+25；（2）142231

11、(3)273精品w o r d 可编辑资料-第 3 页，共 4 页-文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7

12、H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T

13、4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:

14、CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 H

15、O7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ

16、4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编

17、码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T1019若 2a1 的平方根是 3，3a+b9 的立方根是2，c为38，求 a+b+c 的平方根20若13的整数部分为a，小数部分为b，求213ab的值.21观察下列等式：回答问题：211111111

18、2111122611121211312112212111313114131122，（1）根据上面三个等式的信息，请猜想2251411的结果；（2）请按照上式反应的规律，试写出用n 表示的等式，并加以验证。精品w o r d 可编辑资料-第 4 页，共 4 页-文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:C

19、W4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO

20、7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4

21、T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码

22、:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6

23、HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10文档编码:CW4L4S9T6M6 HO7H4S3V5T4 ZZ4T4C5W4T10