期中考试试题
第一学期九年级数学期中试题
第一学期九年级数学期中试题初中的数学其实开始有一点难度了，所以大家要多花心思去学习哦，今天小编就给大家参考一下九年级数学，仅供参考秋季学期九年级上数学期中试题一、单选题(共 10 题，共 40 分)数学试题卷1.已知⊙O 的半径为 5，若 PO=4，则点 P 与⊙O 的位置关系是( )A.点 P 在⊙O 内B.点 P 在⊙O 上C.点 P 在⊙O 外D.无法判断2.与函数 y = 2( x - 2)2 的图象形状相同的抛物线解析式是( )A. y = 1 + 1x2B. y =(2x +1)2C. y =( x - 2)2D. y = 2x23.如图，在Rt△ABC 中，∠B=30°，∠C=90°，绕点 A 按顺时针方向旋转到△AB1C1 的位置，使得点C，A，B1 在同一条直线上，那么旋转角等于( )A.140°B.120°C.60°D.50°4.已知二次函数 y =( x -1)2 -1(0 ≤ x ≤ 3)的图象如图所示，关于该函数在所给自变量取值范围内，下列说法正确的是( )A.有最小值 0，有最大值 3B.有最小值-1，有最大值 0C.有最小值-1，有最大值 3D.有最小值-1，无最大值第 3 题图第 4 题图第 5 题图5.图 1 和图 2 中所有的小正方形都全等，将图 1 的正方形放在图2 中①②③④的某一位置，使它与原来7 个小正方形组成的图形是中心对称图形，这个位置是( )A.①B.②C.③D.④6.下列选项中，能使关于 x 的一元二次方程ax2 - 4x + c=0 一定有实数根的是( ) A.a>0 B.a=0 C.c>0 D.c=07.某种植物的主干长出若干数目的枝干，每个枝干又长出同样数目的小分支，主干、枝干和小分支的总数是 91.设每个枝干长出 x 个小分支，则 x 满足的关系式为( ) A.x+x2=91 B.1+x2=91C.1+x+x2=91D.1+x(x−1)=918.下列各图中，AB 与 BC 不一定垂直的是( )9.对于方程(ax+b)2=c，下列叙述正确的是( )A.不论 c 为何值，方程均有实数根B.方程的根是抛物线 y=(ax+b)2 与直线 y=c 的交点坐标C.当c≥0 时，方程可化为：ax+b=D.若抛物线 y=(ax+b)2 与直线 y=c 没有交点，则 c<010.如图，AC 是⊙O 的直径，BD 是⊙O 的弦，BE=DE，连接 BC，若 BD=8 cm，AE=2cm，则点 O 到 BC 的距离是( )B.2.5 cm D.3 cm二、填空题(共 6 题，共 30 分)11.已知一个二次函数的图象开口向下，且经过原点，请写出一个满足条件的二次函数解析式 .12.如图，A、B、C 为⊙O 上的三点，若∠AOB=138°，则∠C= .13 . 有一边长为 3 的等腰三角形，它的另两边长是方程 x2 - 4x + k = 0 的两根，则k = .14.如图，在△ABC 中，∠CAB=70°，在同一平面内将△ABC 绕A 点旋转到△AB′C′位置，且CC′∥AB，则∠BAB′的度数是 .15.如图，已知 AB、CD 为⊙O 的两条弦，OC⊥AB，连接 AD、OB，若∠ADC=29°，则∠ABO = .16.在平面直角坐标系中，直线 y=m 被抛物线 y = x2 + bx + c 截得的线段长为 6，则抛物线顶点到直线 y=m 的距离为 .三、解答题(共 8 题，共 80 分)17.(8 分)解下列方程：(1)3x2-4x-1=0 (2)(x-3)2+4x(x-3)=0.18.(8 分)如图，方格纸中的每个小方格都是边长为1 个单位长度的小正方形，每个小正方形的顶点叫格点.点A、B、C、D、E、F、O 都在格点上.(1)画出△ABC 向上平移 3 个单位长度的△A1B1C1;(2)画出△DEF 绕点 O 按逆时针方向旋转90°后所得到的△D1E1F1;(3)△A1B1C1 和△D1E1F1 组成的图形是轴对称图形吗?19.(8 分)如图，在Rt△ABC 中，∠BAC=90°.(1)先作∠ACB 的平分线交 AB 边于点 P，再以点 P 为圆心，PA 的长为半径作⊙P(要求：尺规作图，保留作图痕迹，不写作法);(2)请你判断(1)中 BC 与⊙P 的位置关系，并证明你的结论.20.(8 分)小明的家门前有一块空地，空地外有一面长 10 米的围墙，为了美化生活环境，小明的爸爸准备靠墙修建一个矩形花圃，他买回了 32 米长的花圃围栏，为了浇花和赏花的方便，准备在花圃的中间再围出一条宽为 1 米的通道(属于花圃一部分)及在左右花圃各留一个1 米宽的门(其他材料).设花圃与围墙平行的一边长为 x 米，(1)花圃与围墙垂直的一边长为米(用 x 表示).(2)如何设计才能使花圃的面积最大?21.(10 分)已知二次函数 y=x2-2x-3.(1)求函数图象的顶点坐标，与 x 轴和 y 轴的交点坐标，并画出函数的大致图象;(2)根据图象直接回答：当 x 满足时，y<0;当-122.(12 分)如图，⊙O 的直径 AB=12 cm，C 为 AB 延长线上一点，CP 与⊙O 相切于点P，过点 B 作弦BD∥CP，连接 PD.(1)求证：点 P 为B⌒D的中点;(2)若∠C=∠D，求四边形 BCPD 的面积.23.(12 分)已知抛物线 C：y1=a(x-h)2-1，直线 l：y2=kx-kh-1(1)试说明：抛物线 C 的顶点 D 总在直线 y2=kx-kh-1 上;(2)当 a=-1，m≤x≤2 时，y1≥x-3 恒成立，求 m 的最小值;(3)当 024.(14 分)我们定义：如果一个三角形一条边上的高等于这条边，那么这个三角形叫做“等高底”三角形，这条边叫做这个三角形的“等底”.(1)概念理解：如图1，在△ABC 中，AC=6，BC=3，∠ACB=30°，试判断△ABC 是否是“等高底”三角形，请说明理由.(2)问题探究：如图2，△ABC 是“等高底”三角形，BC 是“等底”，作△ABC 关于 BC所在直线的对称图形得到△A'BC，连结AA'交直线BC 于点D.若BC=2BD，求 ACBC的值.(3)应用拓展：如图 3.已知l1∥l2， l1 与 l2 之间的距离为2.“等高底”△ABC 的“等底”BC 在直线 l1 上，点 A 在直线 l2 上，AC= BC.将△ABC 绕点C 按顺时针方向旋转45°得到△A'B'C，A'C 所在直线交 l2 于点 D.求 CD 的值.九年级上期中考试数学试题卷一、单选题(共 10 题，共 40 分)1.二次函数 y = 2( x - 3)2 + 4 的顶点坐标是( )A.(3，4)B.(-2，4)C.(2，4)D.(-3，4)2.投掷一枚质地均匀的硬币两次，对两次朝上一面的描述，下列说法正确的是( )A.都是正面的可能性较大B.都是反面的可能性较大C.一正一反的可能性较大D.上述三种的可能性一样大3.一个直角三角形的两条直角边长的和为14 cm，其中一直角边长为 x (cm)，面积为y (cm2)，则 y 与 x 的函数的关系式是( )A.y=7xB.y=x(14-x)C.y=x(7-x)D. y = 1 x (14 - x)24.以坐标原点O 为圆心，5 为半径作圆，则下列各点中，一定在⊙O 上的是( ) A.(3，3) B.(3，4) C.(4，4) D.(4，5)5.已知 a = 3 ，则 a + b 的值是( )6.如图，已知BD 是⊙O 的直径，弦BC∥OA，若∠B 的度数是50°，则∠D 的度数是( ) A.50° B.40° C.30° D.25°第 6 题图第 7 题图7.如图，在半径为 13 cm 的圆形铁片上切下一块高为 8 cm 的弓形铁片，则弓形弦 AB 的长为( )A.10 cmB.16 cmC.24 cmD.26 cm8.对于抛物线 y =-( x +1)2 + 3 ，下列结论：①抛物线的开口向下; ②对称轴为直线 x=1;③顶点坐标为(﹣1，3); ④x>1 时，y 随 x 的增大而减小. 其中正确结论的个数为( )A.1B.2C.3D.49.已知二次函数y=ax2+bx+c(a≠0)的图象如图所示，给出以下结论：①a<0;②c<0;③a-b+c>0;④b+2a=0.其中正确的结论有( )A.4 个B.3 个C.2 个D.1 个第 9 题图第 10 题图10.如图，C 是以 AB 为直径的半圆 O 上一点，连结 AC，BC，分别以 AC，BC 为斜边向外作等腰直角三角形△ACD，△BCE， AC ， BC 的中点分别是 M，N.连接DM，EN，若C 在半圆上由点A 向B 移动的过程中，DM∶EN 的值的变化情况是( )A. 变大B. 变小C. 先变大再变小D. 保持不变二、填空题(共 6 题，共 30 分)11.抛物线 y =-2x2 + 4x +1 的对称轴是直线 .12.将抛物线 y = x2 - 2 向左平移 1 个单位后所得抛物线的表达式为 .13.如图 ABCD 中，E，F 是对角线 BD 上的两点，且 BE=EF=FD，连结 CE 并延长交 AB 于点 G，若 EG=2，则 CG= .第 13 题图第 15 题图14.三名运动员参加定点投篮比赛，原定出场顺序是：甲第一个出场，乙第二个出场，丙第三个出场，由于某种原因，要求这三名运动员用抽签方式重新确定出场顺序，则抽签后每个运动员的出场顺序都发生变化的概率为 .15.如图，点 A、B、C、D、O 都在方格纸的格点上，每个方格的长度为 1，若△ COD 是由△ AOB 绕点 O 按逆时针方向旋转90°而得，则线段 AB 扫过的面积(阴影部分面积) 为 .16.已知半径为 3 的⊙O 经过平行四边形 ABCD 的三个顶点 A，B，C，与 AD，CD 分别交于点 E，F，若弧 EF 的度数为40°，则 AE 与CF 的弧长之和为= .三、解答题(共 8 题，共 80 分)17.(8 分)(1)已知 x = y ，求代数式2 3x + y2x - y的值.(2)求比例式 x +1 = 3x - 2 中字母 x 的值.3 418.(8 分)如图⊙O 中弦 AC 与弦 BD 交于点 P，连结 AB，CD，已知 AB=CD，(1)求证 AC=BD(2)已知 AB = BC ， BD 的度数为160°，求 AB 的度数.19.(8 分)A 口袋中装有三个相同的小球，它们的标号分别为 1，2 和 3，B 口袋中装有三个相同的小球，它们的标号分别为 4，5，6，从这 2 个口袋中各随机地取出 1 个小球.(1)求取出的 2 个小球的标号之和是奇数的概率是多少?(2)现在将 A 口袋中舍弃一个球剩下 2 个球，B 口袋不变，再从这2 个口袋中各随机地取出1 个小球.发现标号之和为奇数的概率变大，问：A 口袋中舍弃的是哪号球.20.(10 分)已知二次函数的表达式是 y = x2 - 4x + 3 .(1)用配方法把它化成 y =( x + m)2 + k 的形式;(2)在直角坐标系中画出抛物线 y = x2 - 4x + 3 的图象;(3)若 A(x1，y1)、B(x2，y2)是函数 y = x2 - 4x + 3 图象上的两点，且x1” “<” 或“=”);(4)利用函数 y = x2 - 4x + 3 的图象直接写出方程x2 - 4x + 3 =1的近似解(精确到 0.1).21.(10 分)在直角坐标系中有点 A(4，0)，B(0，4)，(1)画一个△ABC，使点C 在x 轴的负半轴上，且△ABC 的面积为12.(2)找出(1)中△ABC 的外接圆圆心 P，并画出△ABC 的外接圆;并写出点 P 的坐标，△ABC 的外接圆半径 R= .22.(10 分)已知△ABC 中，AB=BC，CH⊥AB 垂足为 H，以AB 为直径作⊙O，交 AC、BC、CH 分别于点 D，E，P，连结 DP，AP.(1)求证：∠APD=∠ACH;(2)若 AB=5，AC=6，求 CH 的长.23.(12 分)某水果商户发现近期金桔的批发价格不断上涨，就以每箱 100 元的价格购进80 箱的金桔，购进后，金桔价格每天都上涨5 元/箱，但每天总有 1 箱金桔因变质而丢弃.且商户还要承担这批金桔的储存费用每天 100 元.(1)若商户在购进这批金桔10 天后立即出售这批金桔可以赚多少钱?(2)设商户在购进这批金桔x 天后立即出售这批金桔，求商户的利润 y 与 x 的函数关系式?(3)问几天后立即出售利润最大，最大利润是多少元?24.(14 分)如图(1)，抛物线 y =-x2 + bx + c 与 x 轴相交于点 A、B，与 y 轴相交于点 C，已知 A、C 两点的坐标为 A(-1，0)，C(0，3).点 P 是抛物线上第一象限内一个动点，(1)求抛物线的解析式;并求出 B 的坐标;(2)如图(2)，抛物线上是否存在点 P，使得△ OBP≌△ OCP，若存在，求点 P 的坐标;(3)如图(2)，y 轴上有一点 D(0，1)，连结 DP 交 BC 于点 H，若H 恰好平分 DP，求点 P的坐标;(4)如图(3)，连结 AP 交 BC 于点 M，以 AM 为直径作圆交 AB、BC 于点 E、F，若 E，F关于直线 AP 轴对称，求点 E 的坐标.九年级数学上学期期中试卷阅读一、选择题(每小题3分，共24分)1.若在实数范围内有意义，则x的取值范围是A. x≥1B. x>1C. x≤1D. x≠12.方程的解是A. B. C. D.3.如图，AD∥BE∥CF，直线a、b与这三条平行线分别交于点A、B、C和点D、E、F.若AB=4，BC=6，DE=3，则EF的长为A.4B. 4.5C. 5D. 6(第3题) (第4题) (第5题)4.如图，在Rt△ABC中，∠ACB=90°，CD是斜边AB上的中线.若CD=4，AC=6，则cosA的值是A. B. C. D.5.如图，学校种植园是长32米，宽20米的矩形.为便于管理，现要在中间开辟一横两纵三条等宽的小道，使种植面积为600平方米.若设小道的宽为x米，则下面所列方程正确的是A. (32-x)(20-x)=600B.(32-x)(20-2x)=600C. (32-2x)(20-x)=600D.(32-2x)(20-2x)=6006.已知点、在二次函数的图象上.若，则与的大小关系是A. B. C. D.7. 如图，在⊙O中，半径OA垂直弦BC于点D.若∠ACB=33°，则∠OBC的大小为A.24°B. 33°C. 34°D. 66°8.如图，△ABC和△ADE均为等边三角形，点D在BC上，DE与AC相交于点F.若AB=9，BD=3，则CF的长为A.1B.2C.3D.4二、填空题(每小题3分，共18分)9.计算：= .10.若关于的一元二次方程有实数根，则的取值范围是 .11.将抛物线向下平移2个单位后，得到的抛物线所对应的函数表达式为 .12.如图，四边形ABCD是圆内接四边形，E是BC延长线上一点.若∠BAD =105°，则∠DCE的大小是度.(第12题) (第13题) (第14题)13. 如图，在平面直角坐标系中，线段AB两个端点的坐标分别为(6，6)，(8，2).以原点O为位似中心，在第一象限内将线段AB缩小为原来的后得到线段CD，则点C的坐标为 .14.如图，在平面直角坐标系中，点A在第二象限，以A为顶点的抛物线经过原点，与x轴负半轴交于点B，对称轴为直线x=-2，点C 在抛物线上，且位于点A、B之间(C不与A、B重合).若四边形AOBC 的周长为a，则△ABC的周长为(用含a的代数式表示).三、解答题(本大题共10小题，共78分)15.(6分)计算：.16.(6分)解方程：.17.(6分)某工厂一种产品2013年的产量是100万件，计划2015年产量达到121万件.假设2013年到2015年这种产品产量的年增长率相同.求2013年到2015年这种产品产量的年增长率.18.(7分)图①、图②均是边长为1的正方形网格，△ABC的三个顶点都在格点上.按要求在图①、图②中各画一个三角形，使它的顶点均在格点上.(1)在图①中画一个△A1B1C1，满足△A1B1C1∽△ABC ，且相似比不为1.(2)在图②中将△AB C绕点C顺时针旋转90°得到△A2B2C，求旋转过程中B点所经过的路径长.19.(7分)如图，AB是半圆所在圆的直径，点O为圆心，OA=5，弦AC=8，OD⊥AC于E，交⊙O于D，连结BC、BE.(1)求OE的长.(2)设∠BEC=α，求tanα的值.20.(7分) 如图，在平面直角坐标系中，过抛物线的顶点A作x轴的平行线，交抛物线于点B，点B在第一象限.(1)求点A的坐标.(2)点P为x轴上任意一点，连结AP、BP，求△ABP的面积.21.(8分)(8分)某超市利用一个带斜坡的平台装卸货物，其纵断面ACFE如图所示. AE为台面，AC垂直于地面，AB表示平台前方的斜坡.斜坡的坡角∠ABC为43°,坡长AB为2m.为保障安全，又便于装卸货物，决定减小斜坡AB的坡角，AD是改造后的斜坡(D在直线BC上)，坡角∠ADC为31°.求斜坡AD底端D与平台AC的距离CD.(结果精确到0. 1m)【参考数据：sin43°=0.68，cos43°=0.73，tan43°=0.93;sin31°=0.52，cos31°=0.86，tan31°=0.60】22.(9分)(9分)如图，在Rt△ABC中，∠B=30°，∠ACB=90°，AB=4.延长CA到O，使AO=AC，以O 为圆心，OA长为半径作⊙O交BA延长线于点D，连结OD、CD.(1)求扇形OAD的面积.(2)判断CD所在直线与⊙O的位置关系，并说明理由.23. (10分)如图，在Rt△ABC中，∠ACB=90°，AC=6cm，BC=8cm.动点P从点B出发，在BA边上以每秒5cm的速度向点A匀速运动，同时动点Q从点C出发，在CB边上以每秒4cm的速度向点B匀速运动，运动时间为t秒(0(1)用含t的代数式表示BP、BQ的长.(2)连结PQ，如图①所示.当△BPQ与△ABC相似时，求t的值.(3)过点P作PD⊥BC于D，连结AQ、CP，如图②所示.当AQ⊥CP时，直接写出线段PD的长.图①24.(12分)如图，在平面直角坐标系中，抛物线与x轴交于A(4，0)、B(-3，0)两点，与y轴交于点C.(1)求这条抛物线所对应的函数表达式.(2)如图①，点D是x轴下方抛物线上的动点，且不与点C重合.设点D的横坐标为m，以O、A、C、D为顶点的四边形面积为S，求S 与m之间的函数关系式.(3)如图②，连结BC，点M为线段AB上一点，点N为线段BC 上一点，且BM=CN=n，直接写出当n为何值时△BMN为等腰三角形.一、1.A 2. C 3. B 4. D 5. C 6. D 7. A 8. B二、9. 10. 11.(化成一般式也可) 12. 105 13.(3，3) 14. a-4三、15.原式=.(化简正确给2分，计算sin30°正确给1分，结果2分)16. .(1分)∵a=1，b=-3，c=-1，∴.(2分)(最后结果正确，不写头两步不扣分)∴. (5分)∴ (6分)【或，(2分) .(3分)，.(5分)(6分)】17.设2013年到2015年这种产品产量的年增长率为x. (1分)根据题意，得. (3分)解得 x1=0.1=10%，x2=﹣2.1(不合题意，舍去). (5分)答：2013年到2015年这种产品产量的年增长率为10%.(6分)18.(1)(2)画图略. (4分)(每个图2分，不用格尺画图总共扣1分，不标字母不扣分)(2)由图得. (5分)(结果正确，不写这步不扣分)旋转过程中B点所经过的路径长：. (7分)(过程1分，结果1分)19. (1)∵OD⊥AC，∴. (1分)在Rt△OEA中，. (3分)(过程1分，结果1分)(2)∵AB是⊙O的直径，∴∠C=90°. (4分)在Rt△ABC中，AB=2OA=10，∴. (5分)∵OD⊥AC，∴. (6分)在Rt△BCE中，tan=. (7分)20. (1).(3分)(过程2分，结果1分)(用顶点坐标公式求解横坐标2分，纵坐标1分)∴点A的坐标为(4,2). (4分)(2)把代入中，解得，(不合题意，舍去). (6分)∴. (7分)∴. (8分)21. 在Rt△ABC中，sin∠ABC=，∴AC=ABsin43°=2×0.68=1.36 (m) . (4分)(过程2分，有其中两步即可，结果2分)在Rt△ADC中，tan∠ADC=，∴(m). (给分方法同上)∴斜坡AD底端D与平台AC的距离CD约为2.3m.(8分)(不答不扣分，最终不写单位扣1分)22. (1)在Rt△ABC中，∠ACB=90°，∠B=30°，∴，(1分)∠BAC=60°. (2分)∴AO=AC=2，∠OAD=∠BAC=60°.∵OA=OD，∴△OAD是等边三角形. (3分)∴∠AOD=60°. (4分)∴. (5分)(2)CD所在直线与⊙O相切.(只写结论得1分)理由：∵△OAD是等边三角形，∴ AO=AD，∠ODA=60°. (6分) ∵AO=AC，∴ AC=AD.∴∠ACD=∠ADC=. (7分)∴∠ODC=∠ODA+∠ADC=60°+30°=90°，即OD⊥CD . (8分) ∵OD为⊙O的半径，∴CD所在直线与⊙O相切. (9分)23. (1)BP=5t，BQ=8-4t. (2分)(2)在Rt△ABC中，. (3分)当△BPQ∽△BAC时，，即.(4分)解得. (5分)当△BPQ∽△BCA时，，即.(6分)解得. (8分)(3). (10分)24. (1)把A(4，0)、B(-3，0)代入中，得解得 (2分)∴这条抛物线所对应的函数表达式为. (3分)(2)当-3当0(每段自变量1分，若加等号共扣1分，解析式2分) (3)，，. (12分)。
宜宾学院化工原理期中考试试卷
5．两管路甲、乙并联，若两管路的长度相同、甲管内径是乙管内径的 2 倍，且两管内的流动均为层流，则甲管
的阻力与乙管阻力的比值为（ ）。（A.1/16；B.1/32； C.1/1；D.1/2）
6．降尘室宽度增加 1 倍，则其生产能力（ ）。（A.增加 1 倍；B.增加 2 倍；C.不变；D.无法判断）。
9. 空精馏塔的塔顶直空表读数为400 mmHg，当地大气压为100 kPa，精馏塔内的绝对压力为（ ）。A．46.68 kPa
B．0.533 bar C．4.74 mH2O D．0.544 kgf/cm2
10 根据流体力学原理设计的流量（流速）计中，用于测量大直径气体管路截面上速度分布的是（ ）。
A．0.095 B．0.625 C．0.391 D．1.6
14 从液面恒定的高位槽向常压容器加水，若将放水管路上的阀门开度关小，则管路总阻力将（ ）。（设动能项
可忽略。）A．增大 B．减小 C．不变 D．不确定
15 LZB-40转子流量计，出厂时用20℃的空气标定流量范围为5～50 m3/h，现拟用其测量40℃的空气，则其流量范
21 在一水平变径管路中，在小管截面A和大管截面B连接一U形压差计，当流体流过该管段时，压差计读数R值反
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级 班 考生姓名
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第 选课教学班
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映（ ）。 A．A、B两截面间的压力差 B．A、B两截面间的流动阻力 C．A、B两截面间动压头变化 D．突然扩大或缩小的局部阻力 22 在一定管路中，当孔板流量计的孔径和文丘里流量计的喉径相同时，相同流动条件下，文丘里流量计的孔流 系数CV和孔板流量计的孔流系数C0的大小为（ ）。 A．C0＝CV B．C0＞CV C．C0＜CV D．不确定
七年级下册期中试题
期中考试试题一、选择题1. 如果从A 看B 的方向为北偏东25°，那么从B 看A 的方向为( )A.南偏东65°B.南偏西65°C.南偏东25°D.南偏西25°2.如下图，图中共有角的个数是( )A.10个B.9个C.7个D.4个3.在6点10分时，钟表上时针和分针的夹角为( )A.120°B.125°C.130°D.135°4.已知有一条射线OA ，若从点O 再引两条射线OB 、OC ，且∠ AOB ＝72°，∠ BOC ＝36°，则∠ A OC 为( )A.36°B.108°C.72°或36°D.36°或108°5.直线l 上有A 、B 、C 三点，直线l 外有一点P ，若PA ＝5cm,PB=3cm,PC=2cm,那么P 点到直线l 的距离( )A.等于2cmB.小于2cmC.不大于2cmD.大于2cm ，小于3cm6.点到直线的距离是指这点到这条直线的( )A.垂线段B.垂线的长C.长度D.垂线段的长度7.下列语句错误的有( )① 相等的角是对顶角② 过 一点有且只有一条直线和已知直线垂直③ 凡位置相同的角叫同位角④ 若线段AM ＝MC ，则M 一定是AC 的中点⑤ A 、B 两点的距离是连接A 、B 两点的线段A.① ③ ④ ⑤B.① ② ③ ④C.① ② ③ ⑤D.① ② ④ ⑤8.下列说法中，正确的是（ ）A.两条不相交的直线叫平行线B.一条直线的平行线只有一条C.若直线a//b ，a//c ，则b//cD.两条直线不相交就平行9. 下列图形中的曲线不表示y 是x 的函数的是（ ）100y OB x列方程组正确的是（ ）A ．362100x y x y +=⎧⎨+=⎩B ．3642100x y x y +=⎧⎨+=⎩ C ．3624100x y x y +=⎧⎨+=⎩ D ．3622100x y x y +=⎧⎨+=⎩ 11.下列各对数值中是方程组⎩⎨⎧-=+=+2222y x y x 的解的是（ ） A.⎩⎨⎧==22y xB.⎩⎨⎧=-=22y xC.⎩⎨⎧==20y xD.⎩⎨⎧==02y x 12.如果点M 在直线1y x =-上，则M 点的坐标可以是（ ）A ．（－1，0）B ．（0，1）C ．（1，0）D ．（1，－1）13． 一次函数21y x =-的图象大致是（ ）二、填空题14.已知方程2x 2n －1－3y 3m －n +1=0是二元一次方程，则m=_________,n=_________.15．∠AOB 内部画99条射线，问图中一共有多少个小于平角的角？从特殊性想起：角内没画射线——1个角 角内画1条射线——(1+2)个角角内画2条射线—— 个角…… 角内画99条射线—— 个角16.车队有每辆装4吨的车x 辆，每辆装5吨的车y 辆，一次装运100吨货物，列出方程 .17.用加减法将方程组⎩⎨⎧-=-=-548938y x y x 中的未知数x 消去后得到的方程是（ ）．A ．y=14B ．7y=4C ．–7y=4D ．－7y=14AO B18.如果方程组⎪⎩⎪⎨⎧=-=+122331234y x y x 与方程y=kx －1有公共解，则k=________. 19． 在图中，将直线OA 向上平移1个单位，得到一个一次函数的图像，那么这个一次函数的解析式是 ．三、解答题20.如图，从点O 引射线OA 、OB 、OC ，已知∠ AOB ＝90°，又∠ AOB 和∠ BOC 的角平分线所成的角∠ EOF ＝60°，求∠ AOC 和∠ BOC 的度数.21.三角板上的角是一些常用的角，除了可以用它们直接作出30°、45°、60°和90°的角之外，还可以作出其它一些特殊的角.想一想：用一副三角板还可以作出哪些特殊的角?22.解下列方程组：（1）220,7441;x y x y ++=⎧⎨-=-⎩ （2）434,6.43x y x y-=-⎧⎪⎨+=⎪⎩23. 从小华家到姥姥家，有一段上坡路和一段下坡路.星期天，小华骑自行车去姥姥家，如果保持上坡每小时行3 km,下坡每小时行5 km,他到姥姥家需要行66分钟，从姥姥家回来时需要行78分钟才能到家.那么，从小华家到姥姥家上坡路和下坡路各有多少千米，姥姥家离小华家有多远？24．如图，两摞相同规格的饭碗整齐地叠放在桌面上，请根据图中给的数据信息，解答下列问题：（1）求整齐摆放在桌面上饭碗的高度y（cm）与饭碗数x（个）之间的一次函数解析式；（2）把这两摞饭碗整齐地摆成一摞时，这摞饭碗的高度是多少？25．假设汽车离嘉兴的距离s（千米）是行驶时间t（分钟）的一次函数，求s关于t的函数关系式．。
初一第二学期期中考试(英语)试题含答案
初一第二学期期中考试（英语）（考试总分：100 分）一、单选题（本题共计15小题，总分15分）1.（1分）1. Tom likes to play _____ violin in the morning and play _____ volleyball in the afternoon.A. the; theB. the; /C. /; theD. /; /2.（1分）2. It’s easy for him _____ a nice picture.A. to drawB. drawC. drawingD. draws3.（1分）3. My brother often goes to school _____ 7:00 _____ the morning.A. at; inB. in; atC. at; onD. in; on4.（1分）4. _______ be late for class.A. Doesn’tB. notC. Don’tD. no5.（1分）5. —__________________?—It’s three o’clock.A. When do you usually get upB. What day is itC. How much is itD. What time is it6.（1分）6. There _____ much water and apples in the fridge.A. areB. haveC. isD. has7.（1分）7.—_____ is it from here to the Great Wall?—About five kilometers.A. How longB. How farC. How oftenD.How many8.（1分）8. Don’t forget_____ me this evening.A. to callB. callC. callsD. calling9.（1分）9. —Are you good _____ looking after(照顾) old people?—Yes, and I am good _____ them.A. at; forB. with;atC. at; withD.for; with10.（1分）10. It takes him half an hour _____ the windows every week.A. cleanB. to cleanC. cleansD. cleaned11.（1分）11.Don’t eat too much ice-cream. It’s not good _____ your teeth.A. aboutB. inC. toD. for12.（1分）12. Kate, _____ girl, wants to be a teacher.A. a 8-year-oldB. an 8-years-oldC. an 8-year-oldD. a 8 years old13.（1分）13. — _____ I use your mobile phone?—Sorry, you can't. I _______ it now.A. May; am usingB. Must; useC. Need; am usingD. May; use14.（1分）14. It’s nine o’clock. The students ____an English class now.A. haveB. havingC. is haveD. are having15.（1分）15. —Let’s play computer games.—__________________.A. That sounds good.B. Let’s play football.C. Yes.D. Of course not.二、完形填空（本题共计1小题，总分10分）16.（10分）先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。
2024-2025学年上海市上海松江区高三上学期期中考试英语检测试题(含答案)
2024-2025学年上海市上海松江区高三上学期期中考试英语检测试题I. Listening 略II. Grammar and Vocabulary (25分)Section A(共10分,每小题1分.)Directions:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Stephen Hawking: A superhero scientist"We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the universe. That makes us something very special." That’s (21)______ the world-famous physicist Stephen Hawking once described humans.The British scientist was best known for his groundbreaking work in physics. Hawking’s ideas helped us understand the way the universe(22)______ (work), and made him famous around the world. In 1985, he said,"My goal is simple. It is complete understanding of the universe, why it is as it is and why it exists at all."Born in Oxford on 8 January 1942, Hawking was the oldest of four children. As a student, he (23)______ (draw) to the world of physics and maths because he believed they offered the best insights into the universe.Aged21, when he was studying at university, Hawking was diagnosed with ALS, a form of motor neurone disease. When his illness left him unable to write, Hawking trained himself (24)______ (visualize) complex problems in his mind instead. Scientists who worked with Hawking suggested that this way of thinking(25)______ (help) him come up with his most brilliant theories.He wrote a number of best-selling books, including A Brief History of Time,in(26)______ Hawking explains the science of cosmology (the study of how the universe began and then evolved) including how black holes work. These complicated topics were explained in a way that made (27)______ easier for everyone to understand them.Hawking’s illness didn’t stop him (28) ______ (try) new things. For his 65th birthday, Hawking experienced weightlessness on board a specially modified Boeing727jet. The plane drops from asignificant height and allows passengers to float(29)______ they were in ce.(30)______ (restrict) to a wheelchair for most of his life, Hawking said in floating he felt true freedom. "I was Superman for those few minutes," he said.Section B(共15分,每小题1.5分.)Directions:Fill in each blank with a proper word chosen from the box,Each word can be used only once.Note that there is one word more than you need.A. obsessedB.evenlyB.C. initialD. moreE. effectF. hidingG. deliberatelyH.desiredIH. resulting J. undergraduate K. familiarPhysicists concern themselves with problems that are profound. The origins of the universe, the nature of time, the composition of matter. And then, there’s ghetti (意面). A ghetti problem has puzzled physicists as famous as Richard Feynman, and has even been awarded an Ig Nobel Prize. At issue: "Why ghetti doesn’t break into two pieces. Why it breaks into three pieces or 31 ."Ronald Heisser, now a graduate student at Cornell, decided to explore the misbebavior of ghetti fora(n)32 math course he took at MIT.Now, you may never have noticed it, but it’s nearly impossible to break a single, dry piece of ghetti in half. It is claimed that Feynman noodled with the puzzle. And Heisser became similarly 33 with it."I’m a little bit of a person who 34 .behaves in a way that is different from other people. So I thought it would be fun to try and break it into two. No one said you couldn’t do that. They just said why it doesn’t break into two."In fact, the French researchers who were awarded the Ig Nobel prize in 2006 found that when ghetti is bent 35 from both ends, it will crack near the center, where the stick is most curved. But this36 break sets up a vibrational wave(震动波) that quickly breaks the stick further. So you get multiple fragments.What Heisser wondered was whether he could somehow get around this vibrational "snapback"(迅速弹回) 37 . And he found you have to do the twist. Heisser built a device for torqueing(向...施以扭动力) his ghetti with precision and he observed the 38 process of breaking into small parts with a high-speed camera. He discovered that introducing a twist of around 360 degrees to the long strand allowed him to produce the 39 single pair of ghetti pieces."Although the project was a bit of fun, I think it’s quite nice when you can find interesting physics and math 40 behind every day, sort of boring objects," said Ronald Heisser.III. Reading Comprehension(45分)Section A(共15分,每小题1分.)Directions:For each blank in the following passage there are four words or phrases marked A,B, C and D. Fill in each blank with the word or phrase that best fits the context.You’ve been painting for a few years, and maybe you have even sold a painting or two. Are you ready to41 the title of an amateur artist?Distinguishing green hand from professional artists is a42 task. It is not just a matter of your ability to create nice paintings. It’s not only about painting techniques. And for most cases, it doesn’t happen 43 .Very few artists become overnight success without years of struggle and suffering. To turn professional, people find it critical to develop a personal style. What makes your paintings 44 among other paintings out there? Are your paintings standing out unmistakably directed to you as the creator? A personal style comes along with technique, painting medium, and subject and it tendsto develop gradually over time. You 45 it through unconscious and constant exploring and self-shaping. Style does not mean that you arc painting the same subject or using the same painting medium. Salvador Dali used to use many artistic media, but they all have a 46 Dali style. Style refers to the emotions and thoughts delivered by your paintings, which people can identify with. Their 47 .of the painter is then a sure thing.Artists talk about their 48 all of the time. What gets you out of bed every morning to paint? How do you find the energy to have all your time devoted to painting? 49, we all love to do what we do and we get a satisfaction out of creating. For the professional artist, it goes beyond that. Some artists wish to conveya deep message concerning life, society or even politics. Others simply seck50 returns to cover kids’ tuition fees or pay family bills. Yet, all professional artists know that they have to keep working to achieve the goals.Many amateur artists passively wait for 51 to come. If they are not in the mood, they do not bother wasting the time. They sometimes allow themselves to be occupied by events like parties. Professionals are never easily 52 or torn away from their art work in progress. Focused on their work so much, some even regard spending time outside their 53 as crime. 54 is their secret to high productivity.Besides, professional artists are constantly prepared to grab new ideas for the next painting, which they believe is sure to be better than the previous one. The belief that there is always room for 55 keeps driving them forward in the art world where many masters have come along.41. A. step beyond B. turn off C. see through D. make up42. A. rewarding B. tricky C. formal D. temporary43. A. individually B. thoroughly C. instantly D. sincerely44. A. unique B. superior C. practical D. reliable45. A. acquire B. transfer C. imitate D. analyze46. A. recent B. distinct C. modest D. logical47. A. preservation B. employment C. adaption D. recognition48. A. background B. significance C. motivation D. routine49. A. To sum up B. In contrast C. In addition D. In general50. A. academic B. global C. financial D. original51. A. inspiration B. fame C. guidance D. solution52. A. offended B. dominated C. distracted D. rewarded53. A. studio B. bedroom C. garage D. garden54. A. Reflection B. Devotion C. Creativity D. Illustration55. A. negotiation B. profit C. criticism D. improvement Section B(共22分, 每小题2分.)Directions:Read the following three passages. Choose the one that fits best according to the information given in the passage you have just read.(A)The professional life of 22-year-old David Bloomfield takes many shapes. You might see him as a bad-tempered businessman, a money-hungry nephew, a suspicious neighbour or a jealous husband. Sometimes he may be a murder victim - or he may be a cold-hearted killer. David is a member of an acting company called Nightshade, who creates and performs’interactive murder mysteries’.Although these events can be held in someone’s home, they usually take place in a hotel, where guests come for an evening or a weekend. Having planned out a story in which at least one character will be killed, the actors play the main parts themselves. There is no stage - the audience is part ofthe scene as the action unfolds. Members of the audience share meals and conversations with the characters, they can ask questions and they listen for clues. At the end, like Poirot or Miss Marple, they have to solve the mystery and work out who the killer is.David has been working with Nightshade for two years. At school he studied drama and he had learned roles in school theatre productions. But he might never have thought of this particular job if he hadn’t had a stroke of luck. He explains,"I was working at weekends as a waiter at the Grange Hotel where the company performs regularly. I’d watched their performances and I knew how the event worked. So when one of the actors became ill, I volunteered to take his part. It was a lastminute decision and they were taking a big risk with me, but I must have done quite well, because they invited me to stay with them for the rest of the season. And I’m still with them now."David is enthusiastic about his work. "Mixing with the audience makes it a real challenge," he says. "Every event is different. You can’t just rely on a script like most actors and you never know quite what to expect. You have to be creative and quick-thinking to create a convincing character while keeping the mystery alive. I love all that. It must be great to work in films or on a TV mystery series like Poirot, but I know I’d miss what you get from interacting with a live audience."56. Which of the following statements is true of interactive murder mysteries?A. Audience prefer to be given roles to play.B. Actors don’t know the endings before the performance.C. It is usually the audience who find out who the murderer is.D. What actors can do includes changing the storyline.57. What did David say about his joining Nightshade?A. It happened by chance.B. It was what he dreamed of.C. He prepared for it for a long time.D. He needed a part-time job then.58. David must have given a good performance when he first acted in a Nightshade performance because ______ .A. he was invited to keep acting with NightshadeB. he volunteered to replace someone who was illC. Nightshade made a risky decision when they employed himD. Nightshade waited until the last minute to decide to have him on the stage.59. According to David, how is his work different from other acting jobs?A. The audience are enthusiastic.B. The mysteries are hard to crack.C. The scripts themselves are unusual.D. The interactive events are unpredictable.(B)Camberwell College Swimming PoolsCamberwell College has one 50m (Olympic sized) pool with a constant depth of2m throughout, and one25m pool with a 1m shallow end and a 4m deep end. Both pools may be used by the general public at certain times.50m PoolThe pool is often used for classes, but the general public may use two lanes for lane swimming at the following times.Monday:0630-1130 and 1900-2100Tuesday:0630-1130 and 1800-2100Wednesday:0630-1130 and 1730-2130Thursday:0630-1330Friday:0630-1330Weekends:0900-1700Children under the age of 14 must be accompanied by an adult.Please note that during College holidays, these times will vary. Contact the swimming pool onforup-to-date information.25m PoolThe 25 metre pool is available for recreational (non-lane) swimming from 0700-0900 and 1230-1330 on weekdays, and 1000-1600on Saturdays.Children aged 12 and under must be accompanied.We regret that the 25m pool will be closed for restoration between 21st July and18th August. The men’s changing rooms will be closed for the week beginning 18th August, and the women’s changing rooms will be closed the following week. Alternative changing facilities will be made available. We apologize for any disruption this may cause.60. If you want to use the 50m pool, you are supposed to ______A. call the swimming pool for opening hours in advance.B. go swimming during the lunch break on workdays.C. use the 50m pool as usual during the College holidays.D. be informed of the opening hours during College holidays upon your inquiry.61. If you are a girl of 13, you ______.A. have no changing rooms from 21st July to 18th AugustB. can have swimming classes in the 50m poolC. should go to the 25m pool with an adultD. have no access to the 25m pool from 21st July to 18th August62. Which of the following statement is TRUE according to the passage?A. The general public cannot use the 50m pool on Sundays.B. Men will be able to use the 25m pool on the 18th August.C. The general public can only use the 50m pool for lane swimming.D. The 25m pool is always available to the public for recreation.(C)One of the executives gathered at the Aspen Institute for a day-long leadership workshop using the works of Shakespeare was discussing the role of Brutus in the death of Julius Caesar. "Brutus was not an honorable man," he said. "He was a traitor(叛徒). And he murdered someone in cold blood." The agreement was that Brutus had acted with cruelty when other options were available to him. He made a bad decision, they said-at least as it was presented by Shakespeare - to take the lead in murdering Julius Caesar. And though one of the executives acknowledged that Brutus had the good of the republic in mind, Caesar was nevertheless his superior. "You have to endeavor," the executives said,"our policy is to obey the chain of command." During the last few years, business executives and book writers looking for a new way to advise corporate America have been exploiting Shakespeare’s wisdom for profitable ends. None more so than husband and wife team Kenneth and Carol Adelman, well-known advisers to the White House, who started up a training company called "Movers and Shakespeares". They are amateur Shakespeare scholars and Shakespeare lovers, and they have combined their passion and their high levelcontacts into a management training business. They conduct between 30 and 40 workshops annually, focusing on half a dozen different plays, mostly for corporations, but also for government agencies.The workshops all take the same form, focusing on a single play as a kind of case study, and using individual scenes as specific lessons. In Julius Caesar, for example, sly provocation(狡诈的挑唆) of Brutus to take up arms against Caesar was a basis for a discussion of methods of team building and grass roots organism.Although neither of the Adelmans is academically trained in literature, the programmes contain plenty of Shakespeare tradition and background. Their workshop on Henry V, for example, includes a helpful explanation of Henry’s winning strategy at the Battle of Agincourt. But they do come to the text with a few biases: their reading of Henry V minimizes his misuse of power. Instead, they emphasize the story of the youth who seizes opportunity and becomes a masterful leader. And at the workshop on Caesar, Mr. Adelmans had little good to say about Brutus, saying "the noblest Roman of them all" couldn’t make his mind up about things.Many of the participants pointed to very specific elements in the play that they felt related. Caesar’s pride, which led to his murder, and Brutus’s mistakes in leading the traitors after the murder, they said, raise vital questions for anyone serving as a businessman when and how do you resist the boss?63. According to the passage, the Adelmans set up "Movers and Shakespeares" to ______A. help executives to understand Shakespeare’s plays betterB. give advice on leadership by analyzing Shakespeare’s playsC. provide case studies of Shakespeare’s plays in literature workshopsD. guide government agencies to follow the characters in Shakespcare’s plays.64. Why do the Adelmans conduct a workshop on Henry V?A. To highlight the importance of catching opportunities.B. To encourage masterful leaders to plan strategies to win.C. To illustrate the harm of prejudices in management.D. To warn executives against power misuse.65. It can be inferred from the passage that ______.A. the Adelmans’ programme proves biased as the roles of characters are maximizedB. executives feel bored with too many specific elements of Shakespeare’s playsC. the Adelmans will make more profits if they are professional scholarsD. Shakespeare has played an important role in the management field66. The best title for the passage is ______.A. Shakespeare’s plays: Executives reconsider corporate cultureB. Shakespeare’s plays: An essential key to business successC. Shakespeare’s plays: A lesson for business motivationD. Shakespeare’s plays: Dramatic training brings dramatic resultsSection C(共8分,每小题2分.)Directions:Read the following passage. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need.A. Technology changes so quickly these days that the hotel has had to try to forecast possible improvements.B. Being part of the hotel site has huge benefits, both for him and the hotel itself.C. The one hundred and forty-five bedrooms, large and well-furnished, are both comfortable and welcome.D. He praises its efficiency and talks enthusiastically of the facilities it offers.E. DVD recorders can also be upgraded when necessary.F. Another hi-tech system controls this essential area of comfort.t.Five-Star luxury meets up-to-date technologyThe five-star Merrion Hotel, which has just opened, is the result of considerable research into customer requirements and nearly two years’ work on four large eighteenth-century houses in Dublin. Creating a new hotel in this way has allowed the latest technology to be installed. This has been done for the benefit of staff and guests alike.At the Merrion, General Manager Peter MacCann expects his staff to know the guests by name. However, for details of his guests’ preference, he relies on the hotel’s computer system. It can deal with return guests in the extra-special way that is appropriate to a five-star hotel.Though the system cost£250,000 to install, it will pay for itself overtime,MacCann.67.______MacCann.67.______ For example, a guest who requests certain music CDs during a first stay will find those same CDs ready for him on a return visit. This is thanks to the guest-history facility which allows staff to key in any number of preferences.Hotel guests all over the world frequently complain about room temperature.68. ______ Guests have the opportunity to change the temperature themselves within three degrees either side of the normal 18℃ but, in addition, each individual room can be adjusted by any amount between 14℃and 25℃ at the front desk.69. ______ Extra cables have been laid to handle whatever scientific advances may occur. The televisions are rented rather than bought, so that they can be replaced with more up-to-date models at any time.Despite the presence of all this very up-to-the-minute equipment in the rooms, MacCann says they havetried hard not to make guests feel threatened by the technology.70. ______ There are, of course, a swimming pool and gym, six conference rooms, two bars and two restaurants, and a beautiful garden at the heart of it all.Aided by technology, the Merrion looks likely to succeed.IV. Summary Writing(10分)Directions:Read the following passage. Summarize in no more than 60 words the main idea of the passage and how it is illustrated. Use your own words as far as possible.Does Mother Nature Know Best?Cloning - using genetic engineering to make exact copies of living plants and animals - has been in science fiction for years. Since 1997, with the cloning of a sheep, Dolly, it has become part of real life and the subject of public debate.For some people, human cloning is acceptable in medicine despite the criticism that it is unnatural. For example human tissue can be cloned for use in organ replacement or gene therapy. Also, organs could be provided by human clones. When a child is suffering from a fatal disease and needs an organ donor, its parents could have a younger cloned brother or sister-effectively an identical twin. This would provide 100% donor compatibility while an organ donated from another brother or sister would only stand a 25% chance of being successful. Moreover,couples who can’t have children may wish to clone a child from themselves. Finally, endangered animals could be cloned to increase their numbers.However, there are many arguments against cloning. Although many people saw the cloning of Dolly asa major breakthrough, it is just another step towards’playing with nature’. Firstly, in spite of what they say, scientists have no idea of the long-term effect of genetic engineering. More and more genetically altered plants are being produced, and cloned farm animals are next. On the other hand, creating 'perfect’ plants and animals could eliminate the great variety of species on our planet.Furthermore, some scientists say we could transplant organs from cloned animals into humans, even though the risks to health are enormous.All things considered, I am against cloning. It is clear that we need to regulate genetic engineering and stop experiments now, before it is too late!V. Translation (15分)Directions:Translate the following sentences into English, using the words given in the brackets.72.你是否认同"锻炼越多，身体就越好"这个观点呢？（the more）3 分73.他之所以一事无成，是因为他经常错失良机。
湖北省巴东县2022-2023学年九年级下册数学期中考试题(含答案)
（小正方形的顶点). 求证：∠ABC=∠D.
（2）在如图 2 所示的正方形网格图中，每个小正方形的边长为 1，A,B,C 均为格点，请 你仅用无刻度的直尺在线段 AC 上求作一点 P, 使得∠PBA=∠C,并简要说明理由.
(第 18 题图 1)
(第 18 题图 2)
19．（8 分）学校举办演讲比赛,总评成绩由“内容、表达、风度、印象”四部分组成．九
原式=－ …………（8 分） 5
18.（1）证明：略…………（4 分）
（2）解：如图，取格点 D,E, 1
在 Rt△AEC 中，tan∠ACE= ;…………（1 分） 2 1
在 Rt△ABD 中，tan∠ABD= ;…………（2 分） 2
∴tan∠ACE=tan∠ABD
∴∠ACE=∠ABD…………（3 分）
1 z=－ x2+12x－320…………（3 分）
10 1
当 x=60 时，z 最大，最大净利润为 z=－ ×602+12×60－320=40(万 10
元）. …………………………………………（5 分）
1 （2）解：当 z=17.5 时，解方程 17.5=－ x2+12x－320 得，
10 x1=45,x2=75.……………………………………（2 分） ∵净利润预期不低于 17.5 万元 ∴由二次函数的图象性质可知，销售价格 x(元/个）的取值范围为， 45≤x≤75………………………（3 分）
（第 5 题图）
375 A． π
2
B．600π C．300π
D．30π
6．动物学家通过大量的调查估计，某种动物活到 20 岁的概率为 0.8，活到 25 岁的概率为
0.5，那么，现年 20 岁的这种动物活到 25 岁的概率是（▲）
九年级下学期语文期中考试题
九年级下学期语文期中考试题九年级的就快要中考了，如果同学们还不认真的对待可能就会考不上好高中了哦，今天小编给大家分享的是九年级语文，欢迎大家来阅读哦春期九年级下学期语文期中试题一、语文知识及运用(30分)1.下列词语中加点字注音完全正确的一项是( )(3分)A.裹挟(xié) 庇佑(bì) 殷红(yīn) 耿耿于怀(gěng)B.充沛(pèi) 教诲(huì) 血腥(xīng) 贻笑大方(yí)C.挑剔(tī) 撰稿(zuàn) 窥伺(sì) 刨根究底(páo)D.草垛(duò) 被褥(rǔ) 酗酒(xù) 瞻前顾后(zhān)2.下列词语的书写完全正确的一项是( )(3分)A.害臊招募狰狞风靡一时B.赃款线揽烧灼怒不可遏C.荒谬蜕变挑畔吃糠咽菜D.瞭望糯米谴责目不遐接3.下列句子中加点词语使用不恰当的一项是( )(3分)A.到了秋天，四处呈现一片衰草连天的景象，准备迎接风雪载途的寒冬。
B.闻一多先生“说”了，说得真痛快，动人心，鼓壮志，气冲斗牛，声震天地。
C.香菱因见姊妹们说笑，便自己走至阶前竹下闲步，挖心搜胆，耳不旁听，目不别视。
D.入夜，我独自在荷塘边散步，人声鼎沸，只听到蛐蛐的鸣叫和自己的心跳声，原来静是那么的美好!4.下列文学常识表述错误的一项是( )(3分)A.《范进中举》选自清代小说家吴敬梓的长篇讽刺小说《儒林外史》。
本文运用夸张的手法生动地刻画了范进中举之后那喜极而疯的形象，深刻地揭露了这个士人的丑恶灵魂，同时通过他的命运变化反映了世态的炎凉。
B.《桃花源记》是东晋文人陶渊明的代表作之一。
文章以渔人的行踪为线索，把现实和理想境界联系起来，通过对桃花源的和谐安宁、自由平等生活的描绘，表现了作者对理想社会的渴求。
C.朱自清的《背影》、孙犁的《芦花荡》、杰克•伦敦的《热爱生命》都是脍炙人口的散文名篇。
北京市大兴区2023-2024学年九年级上学期期中考试语文试题(含答案)
2023北京大兴初三（上）期中语文2023.111.本试卷共10 页,共五道大题,24道小题,满分100分。
考试时间150分钟。
2.在试卷和答题卡上准确填写学校、班级、姓名和准考证号(ID号)。
3.答案一律填涂或书写在答题卡上,在试卷上作答无效。
4.在答题卡上,选择题用2B铅笔作答,其他试题用黑色字迹签字笔作答。
一、基础·运用(共14分)校学生会拟举办“君子自强不息”主题文化展览活动,请你协助筹划各部分内容。
第一部分君子文化——中华民族的精神标识君子文化是中华民族特有的精神标识,潜移默化地影响着世代中华儿女,有着永恒的历史价值和时代价值。
君子在个人修养方面要能做到“君子坦荡荡”“君子泰而不骄”“君子以自强不息”等。
“君子”内涵与时xié行。
新时代,“君子”仍是世人共同推崇的高尚人格。
淬炼君子人格是当代青年立身处世的价值标杆。
1.请将“自强不息”用正楷或行楷书写在下面的田字格中。
(2分)2.负责该部分展板介绍的同学在研读文字后做了以下几处批注,你认为不正确的一项是(2分)A.“潜移默化”一词中“潜”的读音是“qián”,意为“隐藏,不露在表面”。
B.“xié 行”中“xié”的字形应为“偕”,因为“偕”可表达“一同”的意思。
C.“淬炼”也可写作“淬练”,因为“淬炼”君子人格只需反复练习。
D.“处世”中“处”的读音为“chǔ”,因为“处世”有“跟人往来相处”的意思。
3.你想知道文段中“君子泰而不骄”的意思,通过查《古代汉语词典》,发现“泰”作为形容词的几种解释:①骄纵;②通,通畅;③安定,安详;④过分;⑤上,远;⑥大方。
根据文段内容,你认为“君子泰而不骄”的意思是_______。
(2分)第二部分自强不息——古今榜样的精神引领“天行健,君子以自强不息。
”这句话出自《周易》,意思是天道运行刚健有力,永无止息。
而君子处世,也应该遵循天道,刚毅坚忍,持之以恒,努力奋进【甲】古有屈原行于长路,上下求索;有李白长风破浪,扬帆济海;有郑燮千磨万击,迎风坚韧【乙】今有冬奥会上徐梦桃不惧伤病,勇于夺冠,为国争光;有身残志坚的陆鸿虽患脑瘫,但逆流而上扶贫创业;有华坪女高学子面对坎坷求学路,仍刚强勤敏心怀远志。
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高级财务会计复习题 一、单项选择题 1.采用现行汇率法对外币报表项目进行折算时，按照历史汇率折算的会计报表项目有( ) A．实收资本 B．固定资产 C．存货 D．未分配利润 2．当资产的账面价值小于其计税基础时，会产生 ( ) A．永久性差异 B．时间性差异 C．可抵扣暂时性差异 D．应纳税暂时性差异 3. 递延所得税资产和递延所得税负债的适用税率应为 (． ) A．交易形成时的税率 B．计算所得税时的税率 C．预期收回期间的适用税率 D．资产负债表日的适用税率 4. 租赁资产的所有者，在经营租赁业务活动中，将让渡租赁资产的 ( ) A．注册权 B．使用权 C．所有权 D．特许权 5. A租赁公司将一台大型设备以融资租赁方式租赁给B企业。双方签订合同，该设备租赁期4年，租赁期届满B企业归还给A公司设备。每6个月月末支付租金787.5万元，B企业担保的资产余值为450万元，B企业的母公司担保的资产余值为675万元，另外担保公司担保金额为675万元，未担保余值为225万元，则最低租赁付款额为( ) 万元。 A．6 300 B．8 325 C．8 100 D．7 425 6．企业合并包括 ( ) A．吸收合并、买卖合并和控股合并来源： B．吸收合并、新设合并和控股合并 C．吸收合并和控股合并 D．吸收合并和新设合并 7. 在编制合并报表时，强调母公司股东利益，将子公司视为母公司附属机构的理论是( ) A．母公司理论 B．实体理论 C．所有权理论来源 D．业主权益理论 8. 下列事项中，C公司必须纳入A公司合并范围的情况是()。 A.A公司拥有B公司50%的权益性资本，B公司拥有C公司60%的权益性资本 B.A公司拥有C公司48%的权益性资本 C.A公司拥有B公司60%的权益性资本，B公司拥有C公司40%的权益性资本 D.A公司拥有B公司60%的权益性资本，B公司拥有C公司40%的权益性资本同时A公司拥有C公司20%的权益性资本 9. 下列有关合并会计报表不正确的表述方法是( )。 A.母公司应当将其控制的所有子公司(含特殊目的主体等)，但是小规模的子公司以及经营业务性质特殊的子公司，均不应当纳入合并财务报表的合并范围 B.母公司不能控制的被投资单位不应当纳入合并财务报表合并范围 C.因同一控制下企业合并增加的子公司编制合并资产负债表时应当调整合并资产负债表的期初数 D.某些情况下企业内部一个企业对另一企业进行的债券投资不是从发行债券的企业直接购进而是在证券市场上购进的这种情况下，一方持有至到期投资或划分为其他类别的金融资产原理相同中的债券投资与发行债券企业的应付债券抵销时可能会出现差额，该差额应当计入合并利润表的投资收益项目
10.甲乙公司没有关联关系，按照净利润的10%提取盈余公积。2007年1月1日甲公司投资500万元购入乙公司80%股权，乙公司可辨认净资产公允价值为500万元，账面价值400万元，其差额为应按5年摊销的无形资产，2007年乙公司实现净利润100万元，所有者权益其他项目不变，期初未分配利润为0，在2008年期末甲公司编制合并抵销分录时，未确认的少数股东的商誉应调整为( )万元。
A.100 B.125 C.25 D.50 11. 对于以前年度内部交易形成的固定资产，在将以前会计期间内部交易固定资产多提的累积折旧抵销时，应当： A. 借：固定资产-折旧，贷：期初未分配利润 B．借：期初未分配利润，贷：固定资产原价 C．借：累积折旧，贷：固定资产原价 D．借：固定资产，贷：累计折旧 12.将企业集团内部坏账准备期初数抵销处理时，应当借记“坏账准备”科目，贷记： A．“管理费用”科目 B．“期初未分配利润”科目 C．“营业外收入”科目 D．“应收账款”科目 13.本企业坏账准备计提比例为应收账款余额的5%。上年年末该公司对其子公司内部应收账款余额总额为2000万元，本年年末对其子公司内部应收账款余额总额为3000万元。该公司本年编制合并会计报表时应抵销坏账准备的总额为： A．150 B．100 C．50 D．0 14.在所得税会计中，与直接计入所有者权益的交易或事项相关的可抵扣的暂时性差异的纳税影响，应借记“递延所得税资产”账户，贷记（ ） A．“所得税费用”账户 B．“资本公积”账户 C．“利润分配”账户 D．“盈余公积”账户 15. 某企业2008年利润总额为500万元，适用的所得税税率为25％，当年发生的交易和事项有：取得国债利息收入20万元；年末计提无形资产减值准备40万元。据此计算该企业2008年应交所得税为（ ） A．120万元 B．125万元 C．130万元 D．135万元 16在经营租赁中，对承租人支付初始直接费用的会计处理，下列说法正确的是（ ） A．直接计入当期损益 B．直接计入相关资产成本 C．在租赁期内按直线法分摊计入相关资产成本或当期损益 D．在租赁期按租金支付比例分摊计入相关资产成本或当期损益 17.甲企业采用融资租赁方式租入设备一台。租赁设备的公允价值为500万元，最低租赁付款额为600万元，最低租赁付款额的现值为540万元，则未确认融资费用是（ ） A．0万元 B．40万元 C．60万元 D．100万元 18.下列各项中，属于同一控制下企业合并会计处理特点的是（ ） A．合并中可能产生商誉 B．合并费用计入合并成本 C．被合并企业净资产按账面价值入账 D．合并方付出的非现金资产以公允价值计价 19. 在资产负债表债务法下，下列负债项目中影响应纳税所得额的是（ ） A．应付账款 B．预计负债 C．其他应付款 D．短期借款 20.甲企业采用融资租赁方式租入设备一台，设备尚可使用5年，租赁期4年，租期届满时，租赁资产退还给承租人。租赁设备的公允价值为210万元，最低租赁付款额的现值为200万元，承租人采用直线法计提折旧，则该项融资租入固定资产每年计提的折旧额为（ ） A．40万元 B．42万元 C．50万元 D．52.5万元 21. 在确定涉及补价的交易是否为非货币性资产交换时，收到补价的企业，应当按照收到的补价占( )的比例低于25％确定。 A．换出资产公允价值 B．换出资产公允价值加上支付的补价 C．换人资产公允价值减补价 D．换出资产公允价值减补价 22. 下列资产中，不属于货币性资产的是()。 A．应收账款 B．应收票据 C．准备持有至到期的债券投资 D．准备在一个月内转让的短期股票投资 23. 在非货币性资产交换中，如果同时换人多项资产，非货币性资产交换具有商业实质，且换人资产的公允价值能够可靠计量的，应当按照( )的比例，对换人资产的成本总额进行分配，确定各项换入资产的入账价值。 A．换入各项资产的公允价值与换入资产公允价值总额 B．换出各项资产的公允价值与换出资产公允价值总额 C．换入各项资产的账面价值与换入资产账面价值总额 D．换出各项资产的账面价值与换出资产账面价值总额 24以下交易形式中，属于非货币性资产交换的有( )。 A．以准备持有至到期的债券投资与固定资产交换 B．以固定资产与无形资产交换 C．以准备持有至到期的债券投资与股权投资交换 D．以无形资产与准备持有至到期的债券投资交换 25.依据企业会计准则的规定，下列有关债务重组的表述中，错误的是（ ）。 A.债务重组是在债务人发生财务困难情况下，债权人按其与债务人达成的协议或法院的裁定作出让步的事项 B.债务人以非现金资产或以债转股方式抵偿债务的，重组债务的账面价值与转让的非现金资产或所转股份的公允价值之间的差额，应当确认为债务重组利得 C.关联方关系的存在可能导致发生债务重组具有调节损益的可能性 D.延长债务偿还期限在没有减少利息或本金的情况下也有可能是重务重组 26下列关于债务重组会计处理的表述中，正确的是（ ） A.债务人以债转股方式抵偿债务的，债务人将重组债务的帐面价值大于相关股份公允价值的差额计入资本公积 B.债务人以债转股方式抵偿债务的，债权人将重组债权的帐面价值大于相关股权公允价值的差额计入营业外支出 C.债务人以非现金资产抵偿债务的，债权人将重组债权的帐面价值大于受让非现金资产公允价值的差额计入资产减值损失 D.债务人以非现金资产抵偿债务的，债务人将重组债务的帐面价值大于转让非现金资产公允价值的差额计计入他业务收入 27 A金融机构应收B企业到期贷款本息合计2200万元，包含本金2000万元和按照5％利率计算的利息200万元，由于B企业发生财务困难难以偿还，经修改债务条件后，A同意将此债务延期一年，免除原有利息，重新按4%的利率计算延期1年的利息，B企业应确认重组后该项债务的余额和债务重组利得分别是（ ）万元。 A.2000，200 B.2080，200 C.2080，120 D.2000，120 28. 在混合重组方式下，下列表述中正确的是( )。 A.一般情况下，应先考虑以现金清偿，然后是非现金资产清偿或以债务转为资本方式清偿，最后是修改其他债务条件 B.如果重组协议本身已明确规定了非现金资产或股权的清偿债务金额或比例，债权人接受的非现金资产应按规定的金额入账 C.债权人接受多项非现金资产，应按接受的非现金资产的账面价值的相对比例确定各项非现金资产的入账价值 D.在约定债务重组条件的同时进行债务重组的账务处理 二、多项选择题 1.境外经营财务报表的折算时，下列哪些是正确的 ( ) A．资产负债表中的资产项目，采取资产负债日的即期汇率折算 B．资产负债表中的负债项目，采取资产负债日的即期汇率折算 C．所有者权益项目除“未分配利润”项目外，其他项目采用发生时的即期汇率折算 D．利润表中的收入和费用项目，采用交易发生日的即期汇率或即期汇率的近似汇率折算 E．产生的外币财务报表折算差额，在编制合并会计报表时，在合并资产负债表中的所有者权益项目下单独列示 2.根据租赁会计准则的规定，下列各项属于出租人核算融资租赁业务的内容有 ( ) A．租赁期开始日出租人对融资租赁业务的会计确认 B．未确认融资收益的分配 C．初始费用的分配 D．或有租金的会计处理 E．租赁期届满时的会计处理 3.租期届满，融资租赁资产的处理方法有 ( ) A．变卖 B．退还 C．清理 D．续租 E．留购 4.下列被投资企业中，应当纳入甲公司合并财务报表合并范围的有 ( ) A．甲公司在报告年度购入其57%股份的境外被投资企业 B．甲公司持有其40%股份，且受托代管B公司持有其30%股份的被投资企业 C．甲公司持有其43 %股份，甲公司的子公司A公司持有其8%股份的被投资企业 D．甲公司持有其40%股份，甲公司的母公司持有其11%股份的被投资企业 E．甲公司持有其38%股份，且甲公司根据章程有权决定其财务和经营政策的被投资企业 5.不应纳入其合并会计报表合并范围的有 ( )