[宁德市有几个县]宁德市2015-2016学年度第一学期高一质量检测

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  宁德市2015-2016学年度第一学期高一质量检测(一)

  1.下列关系式中正确的是

  A. B. C. D. 2.函数 的定义域为

  A. B. C. D. 3.在一次游戏中,获奖者按系统抽样的方法从编号为1~56的56种不同奖品中抽取4件,已知编号为6、20、48的奖品已被抽出,则被抽出的4件奖品中还有一件奖品的编号是

  A.32 B.33 C.34 D.35

  4.若函数 唯一的零点同时在(1,1.5),(1.25,1.5),(1.375,1.5),(1.4375,1.5)内,则该零点(精确度为0.1)的一个近似值约为

  A.1.02 B.1.27 C.1.39 D.1.45

  5.函数 的图像大致是

  A. B. C. D.

  6.如图,函数 的图像过矩形OABC的顶点B,且 .

  若在矩形OABC内随机地撒100粒豆子,落在图中阴影部分

  的豆子有67粒,则据此可以估算出图中阴影部分的面积约为

  a=3

  b=1

  IF a<b THEN

  c=a

  ELSE

  c=b

  END IF

  PRINT c

  END

  A.2.64 B.2.68 C.5.36 D.6.64

  7.运行右图所示的程序,最后输出的结果是

  A.3 B.1

  C. D. 8.某校为了解高三学生英语听力情况,抽查了甲、乙两班各

  十名学生的一次英语听力成绩,并将所得数据用茎叶图表示

  (如图所示),则以下判断正确的是

  A.甲组数据的众数为28

  B.甲组数据的中位数是22

  甲

  乙

  8 0

  9 7 7 7 1 6 7 8 9 9

  8 8 6 5 2 1 1 2 3 4

  0 3

  C.乙组数据的最大值为30

  D.乙组数据的极差为16

  9.某市刑警队对警员进行技能测试,测试成绩分为优秀、良好、

  合格三个等级,测试结果如下表:(单位:人)

  优秀良好合格

  男40105

  开始

  S=0,i=2

  是

  否

  输入m

  S=S+i

  i=i+2

  i >m ?

  输出S

  结束

  25

  女a155

  若按优秀、良好、合格三个等级分层,从中抽取40人,成绩

  为良好的有24人,则 等于

  A.10 B.15 C.20 D.30

  10.如图是运算 的程序框图,则其中实数m的取值范围是

  A. B.

  C. D.

  11.某商场为了解商品销售情况,对某种电器今年一至六月份的

  月销售量 (台) 进行统计,得数据如下:

  (月份)123456

  (台)6910862

  根据上表中的数据,你认为能较好描述月销售量 (台)与时间 (月份)变化关系的模拟函数是

  A. B. C. D. 12.已知函数 满足 ,且 时, ,函数 为偶函数,且 时, ,则函数 的图像与函数 的图像的所有交点的横坐标之和等于

  A.0 B. 2 C. 4 D.6

  第Ⅱ卷(非选择题 90分)

  二、填空题:本大题共4小题,每小题5分,共20分.请把答案填在答题卷的相应位置.

  13. 口袋内装有形状、大小完全相同的红球、白球和黑球,它们的个数分别为3、2、1,从中随机摸出1个球,则摸出的球不是白球的概率为 .

  14. 已知定义在 上的奇函数 满足 ,且 ,则 = .

  15.在某次飞镖集训中,甲、乙、丙三人10次飞镖成绩的条形图如下所示,则他们三人中成绩最稳定的是 .

  乙

  甲

  丙

  16. 已知方程 的两根为 ,且 ,则 的大小关系为

  .(用“<”号连接)

  宁德市2015-2016学年度第一学期高一质量检测(二)

  (本题满分10分)

  (Ⅰ)已知全集 , , .

  求集合 和集合 ;

  (Ⅱ)计算:

  (本题满分12分)

  已知 为 上的偶函数.

  (Ⅰ)求实数 的值;

  (Ⅱ)判断函数 在 上的单调性,并利用定义证明.

  (本题满分12分)

  某公司为确定下一年度投入某种产品的宣传费,需了解年宣传费 (单位:万元)对年销售量 (单位:吨)的影响,为此对近6年的年宣传费 (单位:万元)和年销售量 (单位:吨)的数据进行整理,得如下统计表:

  x(万元)234.557.58

  y(吨)33.53.5467

  (Ⅰ)由表中数据求得线性回归方程 中的 ,试求出 的值;

  (Ⅱ)已知这种产品的年利润 (单位:万元)与 、 之间的关系为 ,根据(Ⅰ)中所求的回归方程,求年宣传费x为何值时,年利润 的预估值最大?

  (本题满分12分)

  开始

  输入x

  x<1?

  输出y

  结束

  是

  否

  阅读如图所示程序框图,根据框图的算法功能回答下列问题:

  (Ⅰ)当输入的 时,求输出 的值组成的集合;

  (Ⅱ)已知输入的 时,输出 的最大值为8,最小值

  为3,求实数 的值.

  .(本题满分12分)

  为了调查某校2000名高中生的体能情况,从中随机选取m名学生进行体能测试,将得到的成绩分成 , ,…, 六个组,并作出如下频率分布直方图,已知第四组的频数为12,图中从左到右的第一、二个矩形的面积比为4:5.规定:成绩在 、 、 、 的分别记为“不合格”、“合格”、“良好”,“优秀”,根据图中的信息,回答下列问题.

  (Ⅰ)求x和m的值,并补全这个频率分布直方图;

  (Ⅱ)利用样本估计总体的思想,估计该校学生体能情况为“优秀或良好”的人数;

  (Ⅲ)根据频率分布直方图,从“不合格”和“优秀”的两组学生中随机抽取2人,求所抽取的2人恰好形成“一帮一” (一个优秀、一个不合格)互助小组的概率.

  0.020

  频率/组距

  100

  0.005

  0.010

  x

  60

  分数

  70

  80

  90

  0.040

  0.030

  110

  0

  120

  0.0225

  (本题满分12分)

  已知函数 的图象过点 ,且满足 .

  (Ⅰ)求函数 的解析式;

  (Ⅱ)若函数 在 上的最大与最小值之和为 ,求实数 的值;

  (Ⅲ)若实数 为函数 且 的一个零点,求证:函数 的图象恒在函数 图象的上方.

  宁德市2015-2016学年度第一学期高一质量检测(三)

  一、选择题:本大题共12小题,每小题5分,共60分

  1.D 2.C 3.C 4.D 5.A 6.C 7.B 8.B 9.A 10.B 11.C 12.C

  二、填空题:本大题共4小题,每小题5分,共20分.

  13. 14.3 15.丙 16. 三、解答题:本大题共6小题,共70分.

  17.(本题满分10分)

  解:(Ⅰ)由已知得 ,······································· 2分

  ,······································································ 4分

  ∴ .······································································ 5分

  (Ⅱ) = ······································································· 8分

  =4- ················································································ 9分

  =5- ··················································································· 10分

  (注:原式4个加数每个化简正确得1分,即 =4- …1分; = …1分; …1分; =1…1分.)

  18.(本题满分12分)

  解:(Ⅰ)法一:∵ 为 上的偶函数

  ∴ ······································································· 2分

  ∴ ···································································· 3分

  ∴ , ∴ ················································································ 4分

  ∴ ·················································································· 5分

  法二:∵ 为偶函数

  ∴ ········································································ 2分

  ∴ ························································ 3分

  ∴ ·················································································· 4分

  经检验得: 时, 为偶函数

  ∴ ················································································ 5分

  (Ⅱ)函数 在 上单调递减··········································· 6分

  证明:设 ,则

  ······················································· 7分

  ························································ 8分

  ···················································· 9分

  ∵ ∴ , , , ······························· 10分

  ∴ ,得 ,

  ∴ ······································································· 11分

  ∴函数 在 上是单调递减函数········································· 12分

  19.(本题满分12分)

  解:(Ⅰ)由已知得

  ,······················································ 2分

  ,······················································ 4分

  因为线性回归直线过点 ,且 ,

  所以 ,解得 ,················································· 6分

  (Ⅱ)由(Ⅰ)得 ,························································· 7分

  ∴ ,······················································· 9分

  ···································································· 10分

  当 时, 取得最大值,························································· 11分

  所以年宣传费为9万元时,年利润的预估值最大. ······························ 12分

  (注:用公式法求“ 时, 取得最大值”同样给2分)

  20.(本题满分12分)

  解:(Ⅰ)由程序框图可知, ············································· 1分

  当 时, ,函数在[-1,1)上是减函数,······················ 2分

  ∴ ,即 ······························································· 3分

  当 时, ,函数在[1,3]上是增函数································ 4分

  ∴ ,即 ······························································· 5分

  综上得,输入x∈[-1,3],输出 的值组成的集合为 ························ 6分

  (Ⅱ)当 时,输入 ,输出 ,不合题意,∴ ······ 7分

  当 时, ,函数在 上是减函数,由已知得 ·· 8分

  解之得 ·········································································· 9分

  当 时, ,函数在 上是增函数,由已知得 ·· 10分

  解之得 ··········································································· 11分

  0.020

  频率/组距

  100

  0.005

  0.010

  x

  60

  分数

  70

  80

  90

  0.040

  0.030

  110

  0

  120

  0.0225

  综上得,所求实数 的值为 或 ···································· 12分

  21. (本题满分12分)

  解:(Ⅰ)依题意得: ,……1分

  解得 ……………………………2分

  ∴第四组的频率为

  ……………………………………………3分

  ∴ ∴ ………………………………… 4分

  补全频率分布直方图如图…………………5分

  (Ⅱ)由图估计“优秀或良好”的人数为

  ························································· 6分

  ···················································································· 7分

  (Ⅲ)“不合格”的人数为 ,

  “优秀”的人数为 ,·················································· 8分

  设“不合格”的4人分别为 ,“优秀”的2人分别为 ,从中任取2人的所有基本事件为: , , , , , , , , , , , , , , ,共15种···················································································· 10分

  设所抽取的2人恰好形成“一帮一”互助小组为事件A,其中包含的基本事件为: , , , , , , , ,共有8种:··································· 11分

  故所抽取的2人恰好形成“一帮一”互助小组的概率 ················· 12分

  (注:15种基本事件,全对得2分,列错1~7种扣1分,错8种及以上不给分)

  22. (本题满分12分)

  解:(Ⅰ)依题意得: ··························································· 2分

  解得 ∴ . ··························································· 3分

  (Ⅱ)∵ 又 在 单调递增,

  ∴ , ································································ 4分

  ∴ ∴ ···································································· 5分

  ∴ ∴ ····················································································· 6分

  (Ⅲ)∵ , (i)当 时, 在 上单调递增

  由 在 上单调递增,得 在 上单调递增

  ∴ 在 上单调递增

  又 (或 )

  ∴ 在 上存在唯一零点,

  ∴当 时, ······························································· 8分

  (ⅱ) 当 时, 在 上单调递减

  由 在 上单调递增,得 在 上单调递减

  ∴ 在 上单调递减

  又∵ , ∴ 在 上存在唯一零点,

  ∴当 时, ·························································· 10分

  (注:因 时,由对数函数性质可得函数 的图像以 为渐进线,故此题用“ 趋于-1时函数 趋于正无穷大”来求解,同样可以得分.)

  综上得, 且 ,(此步没写不扣分)

  ∴ ··························································· 11分

  即对于任意 ,都有 ∴函数 的图象恒在 的图象上方.···························· 12分

  (注意:答案只要出现 ,均可得1分)

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