期末复习:苏科版九年级数学上册期末综合检测试卷

适用年级:初三
试卷号:198718

试卷类型:期末
试卷考试时间:2019/1/21

1.单选题(共5题)

1.
下列方程中是一元二次方程的有( )
    ③ ④  ⑤  
A.①②③ B.①③⑤ C.①②⑤ D.①⑤⑥
2.
如图,在宽为20m,长为32m的矩形地面上修筑同样宽的道路(图中阴影部分),余下的部分种上草坪.要使草坪的面积为, 求道路的宽.如果设小路宽为x,根据题意,所列方程正确的是( )
A.(20-x)(32-x)=540    B.(20-x)(32-x)=100
C.(20+x)(32+x)=540D.(20+x)(32-x)=540
3.
已知如图,点O为△ABD的外心,点C为直径BD下方弧BCD上一点,且不与点B,D重合,∠ACB=∠ABD=45°,则下列对AC,BC,CD之间的数量关系判断正确的是(   )
A.AC=BC+CD B. AC=BC+CD   C. AC=BC+CD   D.2AC=BC+CD
4.
下表中,若平均数为2,则x等于(    ).
A.0B.1C.2D.3
5.
一个在圆内的点,它到圆上的最近距离为3cm,到最远距离为5cm,那么圆的半径为( ).
A.5cm
B.3cm
C.8cm
D.4cm

2.选择题(共1题)

6.根据短文内容的理解,选择正确答案。

    In China, there're many different kinds of food. Some of them are very popular. The real Chinese food is dumplings. Now let's talk about them, OK?

    Everyone in China likes dumplings very much, and there are many different kinds of dumplings. Some have meat and vegetables in them, others have sugar, eggs and so on. I like dumplings with vegetables and pork better than any other kind.

    Usually people make dumplings at home. If you have no time to make them, you can buy them from any supermarket. Then you take them home and eat them with vinegar.

    The Spring Festival is very important in China. When it comes, we make dumplings, usually we put a coin(硬币) in a dumpling. If one eats the dumpling with the coin in it, he or she will be lucky in the year.

    In the old days, people couldn't often eat dumplings, because they were very poor. Now our country is becoming stronger and stronger, and our people are richer and richer. We can eat them very often.

    Now tell me, do you like dumplings?

    Welcome to China, and we'll invite you to eat the real Chinese food —dumplings.

3.填空题(共4题)

7.
为提高学生足球水平,某市将开展足球比赛,赛制为单循环形式(每两队之间赛一场).现计划安排28场比赛,应邀请_____多少个球队参赛?
8.
若一元二次方程有两个相等的实数根,则c的值是______.
9.
如图,在宽为20m,长为32m的矩形地面上修筑同样宽的道路(图中阴影部分),余下的部分种上草坪.要使草坪的面积为540m2,则道路的宽为  
10.
已知是关于x的一元二次方程x2+(2m+3)x+m2=0的两个不相等的实数根,且满足=﹣1,则m的值是____.

4.解答题(共2题)

11.
解方程:
(1)3x(x﹣1)=2x﹣2 (2)x2+3x+2=0.
12.
如图,等边三角形ABC的边长为6cm,点P自点B出发,以1cm/s的速度向终点C运动;点Q自点C出发,以1cm/s的速度向终点A运动.若P,Q两点分别同时从B,C两点出发,问经过多少时间△PCQ的面积是
试卷分析
  • 【1】题量占比

    单选题:(5道)

    选择题:(1道)

    填空题:(4道)

    解答题:(2道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:6

    7星难题:0

    8星难题:2

    9星难题:3