2012-2013学年辽宁省丹东市七年级第一学期期末教学质量监测数学卷(带解析)

适用年级:初一
试卷号:571317

试卷类型:期末
试卷考试时间:2017/7/20

1.选择题(共6题)

1.已知直线y=k(x+2)(k>0)与抛物线C:y2=8x相交于A、B两点,F为C的焦点,若|FA|=2|FB|,则k=(   )
2.如图,某几何体的正视图与侧视图都是边长为1的正方形,且体积为 {#mathml#}12{#/mathml#} .则该几何体的俯视图可以是(   )

3.

用方框中所给单词的适当形式填空。每词仅用一次,每空一词。

pilot     compare   wherever   good    discuss

4.

根据短文内容和所给中文提示,在空白处写出单词的正确形式。每空限填一词。

   Nowadays, camping has been popular among young people. It's a great way to be outside and enjoy the nature. Whether you {#blank#}1{#/blank#}(更喜欢) to be in the woods, mountains, or by the river, you are sure to have a wonderful experience when you go camping. Here is some advice {#blank#}2{#/blank#}(为了) camping.

   Fire may be {#blank#}3{#/blank#}(危险的) , so just use fire out when you must. Make sure to put the fire out when you don't use it.

   When you are talking, keep your {#blank#}4{#/blank#}(说话声) down. If you talk loudly, you may disturb (打扰) other people and you will {#blank#}5{#/blank#}(也) miss the chance to see wild animals outside.

   It is necessary to put up your tent only in safe areas. If you put up your tent in other areas, you may get into trouble. Remember to do it for your {#blank#}6{#/blank#}(安全).

   Don't forget to take your camera so that you won't miss the wonderful natural wonders. Later, you'll understand {#blank#}7{#/blank#}(多么) nice they are. Make sure your camera has enough power.

   People often get {#blank#}8{#/blank#}(丢失)in the forest . It's a good way to take a map that {#blank#}9{#/blank#}(帮助) you to get the right {#blank#}10{#/blank#}(方向). Now, people usually take GPS with them. Maps and GPS can help you find the way easily.

5.

根据短文内容和所给中文提示,在空白处写出单词的正确形式。每空限填一词。

   Nowadays, camping has been popular among young people. It's a great way to be outside and enjoy the nature. Whether you {#blank#}1{#/blank#}(更喜欢) to be in the woods, mountains, or by the river, you are sure to have a wonderful experience when you go camping. Here is some advice {#blank#}2{#/blank#}(为了) camping.

   Fire may be {#blank#}3{#/blank#}(危险的) , so just use fire out when you must. Make sure to put the fire out when you don't use it.

   When you are talking, keep your {#blank#}4{#/blank#}(说话声) down. If you talk loudly, you may disturb (打扰) other people and you will {#blank#}5{#/blank#}(也) miss the chance to see wild animals outside.

   It is necessary to put up your tent only in safe areas. If you put up your tent in other areas, you may get into trouble. Remember to do it for your {#blank#}6{#/blank#}(安全).

   Don't forget to take your camera so that you won't miss the wonderful natural wonders. Later, you'll understand {#blank#}7{#/blank#}(多么) nice they are. Make sure your camera has enough power.

   People often get {#blank#}8{#/blank#}(丢失)in the forest . It's a good way to take a map that {#blank#}9{#/blank#}(帮助) you to get the right {#blank#}10{#/blank#}(方向). Now, people usually take GPS with them. Maps and GPS can help you find the way easily.

6.已知f(x)= {#mathml#}a{#/mathml#} • {#mathml#}b{#/mathml#} ,其中 {#mathml#}a{#/mathml#} =(2cosx,﹣ {#mathml#}3{#/mathml#} sin2x), {#mathml#}b{#/mathml#} =(cosx,1)(x∈R).

2.单选题(共4题)

7.
有理数a、b在数轴上的位置如图所示,则a+b的值

A. 大于0   B. 小于0   C. 小于 D. 大于
8.
的相反数是
A.B.C.D.
9.
根据第六次全国人口普查结果显示,丹东市人口数约为2440000,这个数用科学记数法可表示为
A.B.C.D.
10.
由一些大小相同的小正方体组成的几何体的俯视图如图所示,其中正方形中的数字表示在该位置上的小正方体的个数,那么,这个几何体的左视图是 ()
A.B.C.D.

3.填空题(共3题)

11.
在数轴上,点P表示的数是,距离P点3个单位长度的点P′所表示的数应为   .
13.
若单项式是同类项,则常数的值为   .

4.解答题(共5题)

14.
探索规律:将连续的偶数2,4,6,8, ,排成下表,如图:

(1)十字框中的五个数的和与中间的数18有什么关系?
(2)设中间的数为x ,用代数式表示十字框中的五个数的和;
(3)若将十字框上下左右移动,可框住另外的五位数,其它五位数的和能等于2050吗?如能,写出这五位数,如不能,说明理由.
15.
化简求值: ,其中.
16.
学校组织同学到博物馆参观,小明因事没有和同学同时出发,于是准备在学校门口搭乘出租车赶去与同学们会合,出租车的收费标准是:起步价为6元,3千米后每千米收1.2元,不足1千米的按1千米计算.请你回答下列问题
【小题1】小明乘车3.8千米,应付费_________元
【小题2】小明乘车X(X是大于3的整数)千米,应付费多少钱?
【小题3】小明身上仅有10元钱,乘出租车到距学校7千米远的博物馆的车费够不够?请说明理由.
17.
如图,是由一些大小相同的小正方体组成的简单几何体从正面和上面观察到的图形.
(1)若组成这个几何体的小正方体的块数为n,请你写出n的所有可能值;
(2)请你画出当n取最小值时,这个几何体从左面观察到的图形.
18.
丹东市政府决定,从2011年起在全市开展创建全国文明城市,国家卫生城市,国家环保模范城市,国家园林城市“四城联创”活动.小东同学在全校随机调查了若干名学生对“四城联创”的了解程度,下图是他采集数据后绘制的两幅不完整的统计图(A:不了解,B:一般了解,C:了解较多,D:熟悉).请你根据图中提供的信息解答以下问题:

(1)在这次调查活动中,一共调查了多少名学生;
(2)在条形统计图中,将表示B、D的部分补充完整;
(3)在扇形统计图中,计算出C部分所对应的圆心角的度数;
(4)若该校有学生1200名,估计对“四城联创”了解程度为“熟悉” 的学生约有多少名?
试卷分析
  • 【1】题量占比

    选择题:(6道)

    单选题:(4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:0

    5星难题:0

    6星难题:1

    7星难题:0

    8星难题:6

    9星难题:5