2015届江苏省镇江市中考模拟训练二数学试卷(带解析)

适用年级:初三
试卷号:637773

试卷类型:中考模拟
试卷考试时间:2017/7/27

1.单选题(共3题)

1.
二次函数y=x2+px+q中,由于二次项系数为1>0,所以在对称轴左侧,y随x增大而减小,从而得到y越大则x越小,在对称轴右侧,y随x增大而增大,从而得到y越大则x也越大,请根据你对这句话的理解,解决下面问题:若关于x的方程x2+px+q+1=0的两个实数根是m、n(m<n),关于x的方程x2+px+q-5=0的两个实数根是d、e(d<e),则m、n、d、e的大小关系是().
A.m<d<e<nB.d<m<n<eC.d<m<e<nD.m<d<n<e
2.
下列计算中,正确的是().
A.
B.
C.
D.
3.
汽车以60千米/时的速度在公路上匀速行驶,1小时后进入高速路,继续以100千米/时的速度匀速行驶,则汽车行驶的路程s(千米)与行驶的时间t(时)的函数关系的大致图象是( )
A.B.C.D.

2.选择题(共2题)

4.阅读理解

    Australia is the smallest continent in the world. It is a little smaller than China. It is on the Southern Hemisphere of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.

    Enough laws have been made to fight against pollution. The cities in Australia have little air or water pollution. The sky is blue and the water is clean. You can clearly see fish in the rivers. Plants grow very well.

    Last month we visited Perth, the biggest city in Western Australia, and went to a wild flower exhibition. There we saw large numbers of wild flowers on show, most of which we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. Every year in spring Perth has a wild flower exhibition. After visiting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves very much. When we heard bells ringing at the top of the hills, we looked up, but what we saw made us pick up all our things and run back to our car as quickly as we could. There were about three hundred sheep coming towards us along the path.

    Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself among the white sheep. Sheep, sheep, everywhere you can see sheep.

5.阅读理解

    Australia is the smallest continent in the world. It is a little smaller than China. It is on the Southern Hemisphere of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.

    Enough laws have been made to fight against pollution. The cities in Australia have little air or water pollution. The sky is blue and the water is clean. You can clearly see fish in the rivers. Plants grow very well.

    Last month we visited Perth, the biggest city in Western Australia, and went to a wild flower exhibition. There we saw large numbers of wild flowers on show, most of which we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. Every year in spring Perth has a wild flower exhibition. After visiting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves very much. When we heard bells ringing at the top of the hills, we looked up, but what we saw made us pick up all our things and run back to our car as quickly as we could. There were about three hundred sheep coming towards us along the path.

    Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself among the white sheep. Sheep, sheep, everywhere you can see sheep.

3.填空题(共7题)

6.
(-6)×(-    
7.
的倒数是
8.
化简:(x+5)2-x2=
9.
若分式有意义,则x的取值范围是
10.
一元二次方程一根是1,则7-的值为
11.
一组数据0,5,3,的平均数是1,则这组数据的中位数是
12.
一个正多边形的每个外角都是36°,这个正多边形的边数是_______.

4.解答题(共1题)

13.
(本小题满分10分)
(1)解方程:=+2;
(2)解不等式组:
试卷分析
  • 【1】题量占比

    单选题:(3道)

    选择题:(2道)

    填空题:(7道)

    解答题:(1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:3

    7星难题:0

    8星难题:3

    9星难题:5