![](https://wkrtcs.bdimg.com/rtcs/image?w=45.333333333333&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"45.333333333333","h":"26.666666666667","dataType":"png","c":"word/media/image1.png","imgOriW":34,"imgOriH":20})
2019年广西河池市中考数学试卷
一、选择题（本大题共12小题，共36.0分）
1. 计算3-4，结果是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=33.33&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"33.33","h":"14.67","dataType":"gif","c":"word/media/image2.gif"})
B. C. 1 D. 7
2. ![](https://wkrtcs.bdimg.com/rtcs/image?w=176&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"176","h":"164","dataType":"png","c":"word/media/image4.png","imgOriW":176,"imgOriH":164})
如图，∠1=120°，要使a∥b，则∠2的大小是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=34.67&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"34.67","h":"14.67","dataType":"gif","c":"word/media/image5.gif"})
B.
C.
D.
3. 下列式子中，为最简二次根式的是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=38.67&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"38.67","h":"54.67","dataType":"gif","c":"word/media/image9.gif"})
B. C. D.
4. ![](https://wkrtcs.bdimg.com/rtcs/image?w=122&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"122","h":"141","dataType":"png","c":"word/media/image13.png","imgOriW":122,"imgOriH":141})
某几何体的三视图如图所示，该几何体是（ ）
A. 圆锥
B. 圆柱
C. 三棱锥
D. 球
5. 不等式组![](https://wkrtcs.bdimg.com/rtcs/image?w=73.33&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_7","w":"73.33","h":"34.67","dataType":"gif","c":"word/media/image14.gif"})
的解集是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=37.33&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"37.33","h":"16.00","dataType":"gif","c":"word/media/image15.gif"})
B. C. D.
6. 某同学在体育备考训练期间，参加了七次测试，成绩依次为（单位：分）51，53，56，53，56，58，56，这组数据的众数、中位数分别是（ ）
A. 53，53 B. 53，56 C. 56，53 D. 56，56
7. ![](https://wkrtcs.bdimg.com/rtcs/image?w=143&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"143","h":"90","dataType":"png","c":"word/media/image19.png","imgOriW":143,"imgOriH":90})
如图，在△ABC中，D，E分别是AB，BC的中点，点F在DE延长线上，添加一个条件使四边形ADFC为平行四边形，则这个条件是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=54.67&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"54.67","h":"14.67","dataType":"gif","c":"word/media/image20.gif"})
B. C. D.
8. 函数y=x-2的图象不经过（ ）
A. 第一象限 B. 第二象限 C. 第三象限 D. 第四象限
9. ![](https://wkrtcs.bdimg.com/rtcs/image?w=120&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"120","h":"119","dataType":"png","c":"word/media/image22.png","imgOriW":120,"imgOriH":119})
如图，在正方形ABCD中，点E，F分别在BC，CD上，BE=CF，则图中与∠AEB相等的角的个数是（ ）
A. 1
B. 2
C. 3
D. 4
10. ![](https://wkrtcs.bdimg.com/rtcs/image?w=141&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"141","h":"123","dataType":"png","c":"word/media/image23.png","imgOriW":141,"imgOriH":123})
如图，在正六边形ABCDEF中，AC=2，则它的边长是（ ）
A. 1
B. ![](https://wkrtcs.bdimg.com/rtcs/image?w=34.67&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_4","w":"34.67","h":"16.00","dataType":"gif","c":"word/media/image10.gif"})
C.
D. 2
11. 如图，抛物线y=ax2+bx+c的对称轴为直线x=1，则下列结论中，错误的是（ ）
![](https://wkrtcs.bdimg.com/rtcs/image?w=193&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"193","h":"136","dataType":"png","c":"word/media/image25.png","imgOriW":193,"imgOriH":136})
A. B. C. D.
12. ![](https://wkrtcs.bdimg.com/rtcs/image?w=114&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"114","h":"96","dataType":"png","c":"word/media/image30.png","imgOriW":114,"imgOriH":96})
如图，△ABC为等边三角形，点P从A出发，沿A→B→C→A作匀速运动，则线段AP的长度y与运动时间x之间的函数关系大致是（ ）
A. ![](https://wkrtcs.bdimg.com/rtcs/image?w=130.2&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"130.2","h":"74.133333333333","dataType":"png","c":"word/media/image31.png","imgOriW":130,"imgOriH":74})
B.
C. D.
二、填空题（本大题共6小题，共18.0分）
13. 分式方程![](https://wkrtcs.bdimg.com/rtcs/image?w=62.67&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","r":"r_7","w":"62.67","h":"34.67","dataType":"gif","c":"word/media/image35.gif"})
的解为______．
14. ![](https://wkrtcs.bdimg.com/rtcs/image?w=156&md5sum=82c2c956ae7ea42d1a3b15c303fbf7e7&sign=e60e0a53ae&rtcs_flag=2&rtcs_ver=3&l=webapp&bucketNum=209&ipr={"t":"img","w":"156","h":"105","dataType":"png","c":"word/media/image36.png","imgOriW":156,"imgOriH":105})
如图，以点O为位似中心，将△OAB放大后得到△OCD，OA=2，AC=3，则=______．
15. 掷一枚质地均匀的骰子，向上一面的点数为奇数的概率是______．
16. 如图，PA，PB是⊙O的切线，A，B为切点，∠OAB=38°，则∠P=______°．
本文来源：https://www.2haoxitong.net/k/doc/5b723f5c05a1b0717fd5360cba1aa81145318f10.html
文档为doc格式