2014年初中毕业升学考试(贵州六盘水卷)数学(带解析)

适用年级:初三
试卷号:643630

试卷类型:中考真题
试卷考试时间:2017/7/26

1.选择题(共8题)

1.下列关于元素与化合物的叙述,正确的是(  )
2.按要求完成成语练习。

①将含“然”字的成语补充完整

生机{#blank#}1{#/blank#}然    {#blank#}2{#/blank#}然开朗    {#blank#}3{#/blank#}然无存    {#blank#}4{#/blank#}然不知

{#blank#}5{#/blank#}然无恙    {#blank#}6{#/blank#}然大悟    {#blank#}7{#/blank#}然有序    {#blank#}8{#/blank#}然起敬

②根据括号内的提示,在横线上填写一个四字成语。

Ⅰ小说家最好的住所是哪里?是{#blank#}9{#/blank#}的孤岛小木屋,还是众声喧哗的闹市公寓?(很少有人去的地方。指荒凉偏僻的地方。)

Ⅱ层层递升的浑厚的旋律,有如云水相搏,惊涛拍岸,呈现的是一幅天光云影、{#blank#}10{#/blank#}的图画。(景象多种多样,非常壮观。)

3.看拼音,写词语,注意书写要匀称、美观。

kāng kǎi

guàn gài

jiǎn lòu

jiǎo jiàn

{#blank#}1{#/blank#}

{#blank#}2{#/blank#}

{#blank#}3{#/blank#}

{#blank#}4{#/blank#}

4.给下面的句子加上不同的标点,使它们表示不同的意思。

①你  同  意  他  不  同  意

②你  同  意  他  不  同  意

③你  同  意  他  不  同  意

5.阅读理解

    Knowing how much her own children loved presents at Christmas, Ann Sutton always tried to seek help for one or two poor families. With a social worker mother, the Sutton children had inherited her commitment to service, and knew never to take their good fortune at Christmas for granted. This year, Kinzie, her seven-year-old daughter was thrilled that Santa Claus would make a special visit to a 22-year-old mother named Ashley who worked in a factory raising her 12-month-old son by herself.

    The phone rang on Sunday. A representative from a local organization was calling to say that the aid Ann had requested for Ashley had fallen through. No Santa Claus, no presents, nothing.

    Ann saw the cheer vanish from her children's faces at the news. Without a word, Kinzie ran into her bedroom. She returned, her face set with determination. Opening up her piggy bank, she put all the coins onto the table: $3.30. Everything she had.

    “Mom,” she told Ann, “I know it's not much. But maybe this will buy a present for the baby.”

    At a breakfast meeting the next day, Ann told her coworkers about her daughter's story. To her surprise, staff members began to open their purses and empty their pockets to help Kinzie. By day's end, the story of Kinzie's gift had spread beyond Ann's office. She received a call from an unknown donor. If a seven-year-old could give everything she had, he said, he should at least match her gift 100 to 1. He contributed $300.

    On Christmas Eve, Ann drove through the pouring rain to the small trailer where the Ashleys lived. Then she began to unload the gifts from the car, handing them to Ashley one by one.

    Ashley was very moved. Reflecting on a little girl's generosity, Ashley says she'll one day be able to do something similar for someone else in need. “Kinzie could have used that money for herself, but she gave it away,” Ashley says. “She's the type of kid I'd like my son to grow up to be.”

6.阅读理解

    Knowing how much her own children loved presents at Christmas, Ann Sutton always tried to seek help for one or two poor families. With a social worker mother, the Sutton children had inherited her commitment to service, and knew never to take their good fortune at Christmas for granted. This year, Kinzie, her seven-year-old daughter was thrilled that Santa Claus would make a special visit to a 22-year-old mother named Ashley who worked in a factory raising her 12-month-old son by herself.

    The phone rang on Sunday. A representative from a local organization was calling to say that the aid Ann had requested for Ashley had fallen through. No Santa Claus, no presents, nothing.

    Ann saw the cheer vanish from her children's faces at the news. Without a word, Kinzie ran into her bedroom. She returned, her face set with determination. Opening up her piggy bank, she put all the coins onto the table: $3.30. Everything she had.

    “Mom,” she told Ann, “I know it's not much. But maybe this will buy a present for the baby.”

    At a breakfast meeting the next day, Ann told her coworkers about her daughter's story. To her surprise, staff members began to open their purses and empty their pockets to help Kinzie. By day's end, the story of Kinzie's gift had spread beyond Ann's office. She received a call from an unknown donor. If a seven-year-old could give everything she had, he said, he should at least match her gift 100 to 1. He contributed $300.

    On Christmas Eve, Ann drove through the pouring rain to the small trailer where the Ashleys lived. Then she began to unload the gifts from the car, handing them to Ashley one by one.

    Ashley was very moved. Reflecting on a little girl's generosity, Ashley says she'll one day be able to do something similar for someone else in need. “Kinzie could have used that money for herself, but she gave it away,” Ashley says. “She's the type of kid I'd like my son to grow up to be.”

7.阅读理解

    Knowing how much her own children loved presents at Christmas, Ann Sutton always tried to seek help for one or two poor families. With a social worker mother, the Sutton children had inherited her commitment to service, and knew never to take their good fortune at Christmas for granted. This year, Kinzie, her seven-year-old daughter was thrilled that Santa Claus would make a special visit to a 22-year-old mother named Ashley who worked in a factory raising her 12-month-old son by herself.

    The phone rang on Sunday. A representative from a local organization was calling to say that the aid Ann had requested for Ashley had fallen through. No Santa Claus, no presents, nothing.

    Ann saw the cheer vanish from her children's faces at the news. Without a word, Kinzie ran into her bedroom. She returned, her face set with determination. Opening up her piggy bank, she put all the coins onto the table: $3.30. Everything she had.

    “Mom,” she told Ann, “I know it's not much. But maybe this will buy a present for the baby.”

    At a breakfast meeting the next day, Ann told her coworkers about her daughter's story. To her surprise, staff members began to open their purses and empty their pockets to help Kinzie. By day's end, the story of Kinzie's gift had spread beyond Ann's office. She received a call from an unknown donor. If a seven-year-old could give everything she had, he said, he should at least match her gift 100 to 1. He contributed $300.

    On Christmas Eve, Ann drove through the pouring rain to the small trailer where the Ashleys lived. Then she began to unload the gifts from the car, handing them to Ashley one by one.

    Ashley was very moved. Reflecting on a little girl's generosity, Ashley says she'll one day be able to do something similar for someone else in need. “Kinzie could have used that money for herself, but she gave it away,” Ashley says. “She's the type of kid I'd like my son to grow up to be.”

8.阅读理解

    Gadgets that make study fun

    Now in a world piled high with smart phones, tablets and e-readers, technology has entered the classroom in ways unimaginable. Taking classes can be fun too. All you have to do is swipe your fingers on your phone screen and download some apps, which can make your study more fun and efficient. Balancing study and play in a college setting has never been easy-and with the following few apps, it'll be tough to tell the two apart.

    Evernote

    Use: note-taking

    Can be used on: Phone/iPad/iPod touch, Android, BlackBerry, Palm OS and     Windows, Phone 7

    Price: free

    It's hard to imagine that with all the magical gadgets, the eager, studious types would still take out a notepad, a pencil, and a highlighter—and take notes in class. While it's not an actual planner or a calendar App, if you take notes to stay organized, then Evernote is for you.The main thing about Evernote is that all of your notes are automatically sent into the cloud---and then you can access them from any web-connected computer via the Evernote app or a web browser. Evernote also supports audio and photo notes-rather handy if you want to record your lecture or take photos of any projected notes. But, of course, ask for permission first.

    Wikipanion

    Use: research database

    Can be used on: iPhone/iPad/iPod touch

    Price :free ( Wikipanion Plus for $4.99,or 31.87 yuan )

    Now, you don't necessarily have to go to a library or anywhere with computer services to do research work for your paper anymore. You can get access to the research databases just on your smart phone or tablet. Wikipanion gives you a simplified version of Wikipedia without leaving out any of the site's extra features. The normal links that you'd see to each section of an article are no longer on the main screen. Instead, there's small icon located at the bottom of the App, which can be used to access all the sections of an article. You can also open the links in Safari(苹果浏览器). According to the developers' site, loading Wikipedia pages with Wikipanion is a lot faster than accessing the Wikipedia site from the iPhone's browsers. To be honest, we agree.

    Conquering Bilingual News Listening in 7 Days

    Use: English learning application

    Can be used on: iPhone/iPad/iPod touch

    Price: For a limited time you can get the App for only $0.99—half price.

    Still learning English with a workbook? If so, you are behind the times. Get 21st Century Newspaper's new iPhone App, “Conquering Bilingual News Listening in 7 Days”. When you download the App on your iPhone, you can listen to the hottest bilingual news selected from the newspaper's official website (w. w. w. i2lst. cn) and read by native speakers. User can enjoy the audio bilingual news with synchronized subtitles and fantastic pictures while immersed in an authentic language environment. With a simple tap, the sentence you choose will be repeated. “Conquering Bilingual News Listening in 7 Days” has ranked No 1 on the Chinese education App list.

2.单选题(共6题)

9.
下列运算正确的是()
A.(﹣2mn)2=4m2n2B.y2+y2=2y4
C.(a﹣b)2=a2﹣b2D.m2+m=m3
10.
如图是一个运算程序的示意图,若开始输入x的值为81,则第2014次输出的结果为()
A.3B.27C.9D.1
11.
如图是由几个小立方体快所搭几何体的俯视图,小正方形中的数字表示在该位置的小立方块的小数,这个几何体的主视图是()
A.B.C.D.
12.
青蛙是我们人类的朋友,为了了解某池塘里青蛙的数量,先从池塘里捕捞20只青蛙,作上标记后放回池塘,经过一段时间后,再从池塘中捕捞出40只青蛙,其中有标记的青蛙有4只,请你估计一下这个池塘里有多少只青蛙?()
A.100只B.150只C.180只D.200只
13.
六盘水市“琼都大剧院”即将完工,现需选用同一批地砖进行装修,以下不能镶嵌的地板是()
A.正五边形地砖B.正三角形地砖C.正六边形地砖D.正四边形地砖
14.
下面图形中,是中心对称图形的是().
A.B.
C.D.

3.填空题(共7题)

15.
绝对值最小的实数是  
16.
  ▲  .(填“>”、“<”或“=”)
17.
分解因式:m3﹣2m2n+mn2=  
18.
PM2.5是指大气中直径小于或等于0.0000025m的颗粒物,将0.0000025用科学计数法表示为________________.
19.
如图,一次函数y1=k1x+b(k1≠0)的图象与反比例函数y2=k2x+b(k2≠0)的图象交于A,B两点,观察图象,当y1>y2时,x的取值范围是  
20.
某商场对上月笔袋销售的情况进行统计如下表所示:
颜色
白色
黄色
蓝色
紫色
红色
数量(个)
56
128
520
210
160
 
经理决定本月进笔袋时多进一些蓝色的,经理的这一决定应用了哪个统计知识(  )
A.平均数 B.方差 C.中位数 D.众数
21.
在△ABC中,点D是AB边的中点,点E是AC边的中点,连接DE,若BC=4,则DE=  

4.解答题(共5题)

22.
先化简代数式,再从0,1,2三个数中选择适当的数作为a的值代入求值.
23.
某校选派一部分学生参加“六盘水市马拉松比赛”,要为每位参赛学生购买一顶帽子.商场规定:凡一次性购买200顶或200顶以上,可按批发价付款;购买200顶以下只能按零售价付款.如果为每位参赛学生购买1顶,那么只能按零售价付款,需用900元;如果多购买45顶,那么可以按批发价付款,同样需用900元.问:
(1)参赛学生人数x在什么范围内?
(2)若按批发价购买15顶与按零售价购买12顶的款相同,那么参赛学生人数x是多少?
24.
(1)三角形内角和等于  
(2)请证明以上命题.
25.
如图,在△ABC中,利用尺规作图,画出△ABC的外接圆或内切圆(任选一个.不写作法,必须保留作图痕迹)
26.
如图是某数学兴趣小组参加“奥数”后所得成绩绘制成的频数,频率分布表和频数分布直方图.请你根据图表提供的信息,解答下列问题(成绩取整数,满分为100分)
分组
0﹣19.5
19.5﹣39.5
39.5﹣59.5
59.5﹣79.5
79.5﹣100
合计
频数
1
5
6
30
b
50
频率
0.02
a
0.12
0.60
0.16
1
 
(1)频数、频率分布表中a=  ,b=  
(2)补全频数分布直方图.
(3)若在80分以上的小组成员中选3人参加下一轮竞赛,小明本次竞赛的成绩为90分,他被选中的概率是多少?
(4)从该图中你还能获得哪些数学信息?(填写一条即可)
试卷分析
  • 【1】题量占比

    选择题:(8道)

    单选题:(6道)

    填空题:(7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:3

    7星难题:0

    8星难题:6

    9星难题:9