2023-2024学年第二学期福州市九年级中考二模质量抽测数学答案.pdf

2023－2024学年第二学期福州市九年级质量抽测

数学答案及评分标准

评分说明：

1．本解答给出了一种或几种解法供参考，如果学生的解法与本解答不同，可根据习题的主要考查内容比照评分参考

制定相应的评分细则．

2．对于计算题，当学生的解答在某一步出现错误时，如果后继部分的解答未改变该题的内容和难度，可视影响的程

度决定后继部分的给分，但不得超过该部分正确解答应给分数的一半；如果后继部分的解答有较严重的错误，就

不再给分．

3．解答右端所注分数，表示学生正确做到这一步应得的累加分数．

4．只给整数分数．选择题和填空题不给中间分．

一、选择题（本题共10小题，每小题4分，共40分）

1．A2．B3．A4．A5．C

6．D7．B8．B9．C10．B

二、填空题（本题共6小题，每小题4分，共24分）

11．−60米12．抽样调查13．70°

14．x215．396元16．DE

3

三、解答题（本题共9小题，共86分）

17．（本小题满分8分）

解：原式=π−3+1+2······································································································6分

=π．···············································································································8分

18．（本小题满分8分）

证明：∵BE=CF，

∴BE+EF=CF+EF，

∴BF=CE．·········································································································3分

AD

在△ABF和△DCE中

············································································································4分

AB=DC，



∠B=∠C，············································································································5分

BF=CE，BEFC

∴△ABF≌△DCE，································································································6分

∴∠A=∠D．