2012年初中毕业升学考试(山东聊城卷)数学(带解析)

适用年级:初三
试卷号:622099

试卷类型:中考真题
试卷考试时间:2017/7/19

1.单选题(共7题)

1.
计算|﹣|﹣的结果是()
A.﹣B.C.﹣1D.1
2.
在如图所示的数轴上,点B与点C关于点A对称,A、B两点对应的实数分别是和﹣1,则点C所对应的实数是(    )

A. 1+   B. 2+    C. 2﹣1 D. 2+1
3.
如图,在直角坐标系中,以原点O为圆心的同心圆的半径由内向外依次为1,2,3,4,…,同心圆与直线y=x和y=﹣x分别交于A1,A2,A3,A4…,则点A30的坐标是(  )
A.(30,30)B.(﹣8,8C.(﹣4,4D.(4,﹣4
4.
函数y=中自变量x的取值范围是()
A.x>2B.x<2C.x≠2D.x≥2 .
5.
将一副三角板按如图所示摆放,图中∠α的度数是()

A. 75° B. 90° C. 105° D. 120°
6.
用两块完全相同的长方体搭成如图所示的几何体,这个几何体的主视图是()
A.B.C.D.
7.
下列计算正确的是()
A.x2+x3=x5B.x2•x3=x6C.(x23=x5D.x5÷x3=x2

2.选择题(共9题)

8.两座城市相距920千米,甲、乙两辆汽车分别从A、B两个城市同时出发,相向而行,经过4小时相遇.甲车每小时行120千米,乙车的速度是每小时行多少千米?(用方程解)
9.两地铁路长568千米,甲乙两列火车同时从两地相对开出,甲火车每小时行驶154千米,乙火车每小时行驶130千米,经过几小时两车相遇?(列方程解答)
10.甲乙两地相距972km,一列火车从甲地开出,每小时行驶162km,另一列从乙地开出,每小时行驶108km.这两列火车同时开出,经过几小时相遇?可设经过x小时相遇,列方程是{#blank#}1{#/blank#},求得x的值是{#blank#}2{#/blank#}.
11.甲乙两地相距972km,一列火车从甲地开出,每小时行驶162km,另一列从乙地开出,每小时行驶108km.这两列火车同时开出,经过几小时相遇?可设经过x小时相遇,列方程是{#blank#}1{#/blank#},求得x的值是{#blank#}2{#/blank#}.
12.

根据短文内容理解改写错误。

Dear Li Min,

    Thank you for tell {#blank#}1{#/blank#} me so much about your best friend Gao Jun. Now, I'll tell you nothing{#blank#}2{#/blank#}  about my best friend Li Ming.

    Li Ming is a fifteen-years-old {#blank#}3{#/blank#} boy. He comes from Beijing. He’s outgoing(外向的)and we get on well for {#blank#}4{#/blank#} each other. He is very funny, and he always makes us to laugh{#blank#}5{#/blank#} . At school, he is a{#blank#}6{#/blank#}  excellent student. She {#blank#}7{#/blank#} often helps us with our English. At home, he often  helps his mother do some houseworks{#blank#}8{#/blank#} . By the way, he is especially good at playing football, and we often plays{#blank#}9{#/blank#}it after class. Most of my classmates like him very much. I’m very happily{#blank#}10{#/blank#} to have a friend like him.

                                                  Yours,

                                                  Zhang Hua

13.

根据短文内容理解改写错误。

Dear Li Min,

    Thank you for tell {#blank#}1{#/blank#} me so much about your best friend Gao Jun. Now, I'll tell you nothing{#blank#}2{#/blank#}  about my best friend Li Ming.

    Li Ming is a fifteen-years-old {#blank#}3{#/blank#} boy. He comes from Beijing. He’s outgoing(外向的)and we get on well for {#blank#}4{#/blank#} each other. He is very funny, and he always makes us to laugh{#blank#}5{#/blank#} . At school, he is a{#blank#}6{#/blank#}  excellent student. She {#blank#}7{#/blank#} often helps us with our English. At home, he often  helps his mother do some houseworks{#blank#}8{#/blank#} . By the way, he is especially good at playing football, and we often plays{#blank#}9{#/blank#}it after class. Most of my classmates like him very much. I’m very happily{#blank#}10{#/blank#} to have a friend like him.

                                                  Yours,

                                                  Zhang Hua

14.

根据短文理解,回答下列问题。

      A mother planted many kinds of vegetables in her garden. One morning she said to her daughter. “Betty, come here. Look at all these little yellow marks on the leaves of the cabbages. They are eggs of a kind of insects. They are very beautiful but very bad for cabbages. This afternoon you must find all the eggs on the leaves and kill them. In this way, you will help us have better greener and bigger cabbages.”

      Betty didn't think she should do it at once and in the end she forgot all about it. Her mother was ill for a few days and couldn't work in her garden. When she was well, she took Betty to the garden to see the cabbages. To their surprise, the insects had eaten up every leaf. When Betty saw this, she was upset and began to cry. Then her mother said to her, “We should never put off what we have to do today till tomorrow. And you must learn to deal with the things while they are small. or it will turn into a big problem.”

15.

从方框中选择适当的短语,并用其正确形式填空。

hurt oneself    take a look  walk along     on one’s way   go off 

16.AB两地相距360km,甲乙两车同时从AB两地出发,相向而行.甲车的速度是乙车的1.25倍,3小时后两车相遇.甲乙两车每小时分别行多少千米?(用方程计算)

3.填空题(共3题)

17.
计算:=   ▲  
18.
某排球队12名队员的年龄如下表所示:
年龄/岁
18
19
20
21
22
人数/人
1
4
3
2
2
 
该队队员年龄的众数与中位数分别是(  )
A.19岁,19岁B.19岁,20岁C.20岁,20岁D.20岁,22岁
19.
一元二次方程x2=2x的解为________.

4.解答题(共5题)

20.
解不等式组
21.
儿童节期间,文具商店搞促销活动,同时购买一个书包和一个文具盒可以打8折优惠,能比标价省13.2元.已知书包标价比文具盒标价3倍少6元,那么书包和文具盒的标价各是多少元?
22.
如图,直线AB与x轴交于点A(1,0),与y轴交于点B(0,﹣2).
(1)求直线AB的解析式;
(2)若直线AB上的点C在第一象限,且S△BOC=2,求点C的坐标.
23.
如图,矩形ABCD的对角线相交于点O,DE∥AC,CE∥B
A.
求证:四边形OCED是菱形.
24.
为进一步加强中小学生近视眼的防控工作,市教育局近期下发了有关文件,将学生视力保护工作纳入学校和教师的考核内容,为此,某县教育组管部门对今年初中毕业生的视力进行了一次抽样调查,并根据调查结果绘制如下频数分布表和频数分布直方图的一部分.

请根据图表信息回答下列问题:
(1)求表中a、b的值,并将频数分布直方图补充完整;
(2)若视力在4.9以上(含4.9)均属正常,估计该县5600名初中毕业生视力正常的学生有多少人?
试卷分析
  • 【1】题量占比

    单选题:(7道)

    选择题:(9道)

    填空题:(3道)

    解答题:(5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:1

    5星难题:0

    6星难题:1

    7星难题:0

    8星难题:4

    9星难题:9