九年级上期末复习试题
九年级(上)期末复习2_1
九年级（上）期末复习2__1１、一个茶壶的容积为600ml ，用它最多可装水____________g 。
２、新疆的加油站的油价有两种价格方式，一种以所加油质量计价，另一种以所加油体积计价，你认为哪种计价的方式更合理？简述理由。
答：以所加油的_______________计价公平合理。
理由是：_______________________________________________________________ ３、如图所示，曲杆AOB 可绕轴O 转动，AO=BO ，在A 点挂一重为200N 的重物，曲杆在水平位置平衡时，向下的拉力F _______200N 。
(选填“大于”、“小于”或“等于”)４、用调节好的托盘天平称量一只烧杯的质量时，当天平的右盘加上最小的砝码后，发现指针稍微向分度盘中线的左侧偏斜，为了使天平平衡，应该（ ）A 、把天平右端的平衡螺母向外旋出一些B 、把天平右端的平衡螺母向里旋进一些C 、把标尺的游码向右移一些D 、把天平的右端的底部垫高一些５、如图1所示，是甲、乙两种物质的质量和体积的关系图象，下列说法正确的是（ ）A 、ρ甲>ρ乙B 、ρ乙=0.5×103kg/m 3C 、若m 甲=m 乙，则V 甲<V 乙D 、若V 甲=V 乙，则m 甲<m 乙６、两种金属的密度分别是ρ1，ρ2。
取质量相同的这两种金属做成的合金，则该合金的密度（假设混合过程中体积不变）（ ）A 、221ρρ+ B 、21212ρρρρ+ C 、212ρρ+ D 、21212ρρρρ+７、下列说法正确的是（ ）A 、踢出去的足球能继续往前飞行是因为受到惯性力的作用B 、静止在水平桌面上的书受到的重力和书对桌面的压力是一对平衡力C 、绕地球飞行的飞船受到非平衡力的作用D 、列车匀速运动时，火车头拉车厢的力大于在车厢所受到的阻力８、装有液体的甲、乙两相同烧杯，如图所示，放入两个完全相同的物体，当物体静止后两烧杯中液面恰好相平。
九年级数学上册期末复习综合测试题(含答案)
（第4题）九年级数学上册期末复习综合测试题（含答案）一、选择题（本大题共6小题，每小题2分，共12分．） 1．一元二次方程 x 2＝x 的根是（ ）A ．x 1＝0，x 2＝1B ．x 1＝0，x 2＝－1C ．x 1＝x 2＝0D ．x 1＝x 2＝12．一个不透明布袋中有2个红球，3个白球，这些球除颜色外无其他差别，摇匀后从中随机摸出一个小球，该小球是红色的概率为（ ）A ．12B ．23C ．15D ．253．若一组数据 2，3，4，5，x 的方差比另一组数据 5，6，7，8，9 的方差大，则 x 的值可能是（ ） A ．1B ．4C ．6D ．84．如图，OA 、OB 是⊙O 的半径，C 是⊙O 上一点．若∠OAC ＝16°，∠OBC ＝54°，则 ∠AOB 的度数是（ ）A ．70°B ．72°C ．74°D ．76°5．若关于x 的一元二次方程ax 2＋k ＝0的一个根为2，则二次函数y ＝a (x ＋1)2＋k 与x 轴的交点坐标为（ ） A ．(－3，0)、(1，0) B ．(－2，0)、(2，0) C ．(－1，0)、(1，0)D ．(－1，0)、(3，0)6．如图，在Rt △ABC ，∠ACB ＝90°，AC ＝4，BC ＝3，点D ，E 分别在AB ，AC 上，连接DE ，将△ADE 沿DE 翻折，使点A 的对应点F 落在BC 的延长线上，若FD 平分∠EFB ，则AD 的长为（ ） A ． 157B ．207C ．258D ．259二、填空题（本大题共10小题，每小题2分，共20分．） 7（第12题）l 1 l 2l 3A BCEFD （第11题）8．若a b ＝43，则a －b b＝ ．9．设x 1、x 2是方程x 2＋mx －m ＋3＝0的两个根，则x 1＋x 2－x 1x 2＝ ．10．把抛物线y ＝－x 2向左平移2个单位，然后向上平移3个单位，则平移后该抛物线相应的函数表达式为 ．11．如图，l 1∥l 2∥l 3，若AD ＝1，BE ＝3，CF ＝6，则ABBC的值为 ．12．如图，点A 、B 、C 在⊙O 上，⊙O 的半径为3，∠AOC ＝的长为 ． 13．已知关于x 的函数y ＝x 2＋2mx ＋1，若x ＞1时，y 随x 的增大而增大，则m 的取值范围是 ．14．如图，弦AB 是⊙O 的内接正六边形的一边，弦AC 是⊙O 的内接正方形的一边，若 BC ＝2＋23，则⊙O 的半径为 ．15．如图，正方形ABCD 的边长是4，点E 在DC 上，点F 在AC 上，∠BFE ＝90°，若 CE ＝116．如图，在矩形ABCD 中，AB ＝2，AD ＝4，点E 、F 分别为AD 、CD 边上的点，且EF 的长为2，点G 为EF 的中点，点P 为BC 上一动点，则P A ＋PG 的最小值为 ． 三、解答题（本大题共11小题，共88分．请在答题卡指定区域．．．．．．．内作答，解答时应写出文字说明、证明过程或演算步骤）17．（8分）解方程：（1）x 2－4x －5＝0； （2）x 2－4＝2x (x －2)．18．（8分）甲乙两人在相同条件下完成了5次射击训练，两人的成绩（单位：环）如下（1）甲射击成绩的中位数为 环，乙射击成绩的众数为 环；（2）计算两人射击成绩的方差；（3）根据训练成绩，你认为选派哪一名队员参赛更好，为什么？19．（8分）某校开展秋季运动会，需运动员代表进行发言，从甲、乙、丙、丁四名运动员中随机抽取．（1）若随机抽取1名，甲被抽中的概率为 ； （2）若随机抽取2名，求甲在其中的概率．20．（7分）如图，在△ABC 中，点D 、E 分别在AB 、AC 上，且∠BCE ＋∠BDE ＝180°． （1）求证：△ADE ∽△ACB ；（2）连接BE 、CD ，求证：△AEB ∽△ADC ．21．（8分）如图是二次函数y ＝－x 2＋bx ＋c 的图像． （1）求该二次函数的关系式及顶点坐标； （2）当y ＞0时 x 的取值范围是 ；（3）当m ＜x ＜m ＋4时，－5＜y ≤4，则m 的值为 ．22．（7分）在Rt △ABC ，∠BAC ＝90°，AB ＝AC ，D 、E、F 分别为BC 、AB 、AC 边上的点，且∠EDF ＝45°．（1）求证：△EBD ∽△DCF ；（2）当D 是BC 的中点时，连接EF ，若CF ＝5，DF ＝4，则EF 的长为 ．23．（8分）某超市销售一种商品，成本为每千克50元．当每千克售价60元时，每天的销售量为60千克，经市场调查，当每千克售价增加1元，每天的销售量减少2千克． （1）为保证某天获得750元的销售利润，则该天的销售单价应定为多少？ （2）当销售单价定为多少时，才能使当天的销售利润最大？最大利润是多少？24．（8分）如图，AB 为⊙O 的直径，弦CD ⊥AB 于点P ，连接BC ，过点D 作DE ⊥CD ，交⊙O 于点E ，连接AE ，F 是DE 延长线上一点，且∠BCD ＝∠F AE ． （1）求证：AF 是⊙O 的切线；（2）若AF ＝2，EF ＝1，求⊙O 的半径．25．（8分）已知二次函数y ＝(x －2)(x －m )（m 为常数）． （1）求证：不论m 为何值，该函数的图像与x 轴总有公共点；（2）若M （－1，0）， N （3，0），该函数图像与线段MN 只有1个公共点，直接写出 m 的取值范围；（3）若点A （－1，a ），B （1，b ），C （3，c ）在该函数的图像上，当abc ＜0时，结合函数图像，直接写出m 的取值范围.26．（8分）如图，四边形ABCD 内接于⊙O ，AB ＝AC ，BD ⊥AC ，垂足为E ． （1）求证：∠BAC ＝2∠DAC ； （2）若AB ＝10，CD ＝5，求BC 的长．27．（10分）定义：圆心在三角形的一边上，与另一边相切，且经过三角形一个顶点（非切点）的圆，称为这个三角形圆心所在边上的“伴随圆”．（1） 如图①，在△ABC 中，∠C ＝90°，AB ＝5，AC ＝3，则BC 边上的伴随圆的半径为 ． （2）如图②，△ABC 中，AB ＝AC ＝5，BC ＝6，直接写出它的所有伴随圆的半径． （3）如图③，△ABC 中，∠ACB ＝90°，点E 在边AB 上，AE ＝2BE ，D 为AC 的中点，且∠CED ＝90°．①求证：△CED 的外接圆是△ABC 的AC 边上的伴随圆； ②DE的值为 ．参考答案说明：本评分标准每题给出了一种或几种解法供参考，如果考生的解法与本解答不同，参照本评分标准的精神给分．一、选择题（本大题共6小题，每小题2分，共12分）二、填空题（本大题共10小题，每小题2分，共20分）7．9 8．13 9．－3 10．y ＝－(x ＋2)2＋3 11．2312．2π 13．m ≥－1 14． 2 2 15．322 16．4 2 －1三、解答题（本大题共11小题，共88分） 17．（8分）（1）解：x 2－4x －5＝0 x 2－4x ＋4＝5＋4(x －2)2＝9 ········································································································ 1分x －2＝±3 ········································································································ 2分 ∴ x 1＝5，x 2＝－1． ··························································································· 4分 （2）解：x 2－4＝2x (x －2) x 2－4＝2x 2－4xx 2－4x ＋4＝0 ··································································································· 5分 (x －2)2＝0 ········································································································ 6分 ∴ x 1＝x 2＝2． ··································································································· 8分 18．（8分）（1）7；8 ········································································································ 2分 （2）s 2甲＝(7－8)2＋(7－8) 2＋(10－8)2＋(9－8)2＋(7－8)25＝1.6环2． ······························ 4分s 2乙＝(8－8)2＋(8－8) 2＋ (7－8)2＋(8－8)2＋(9－8)25＝0.4环2． ······································ 6分（3）选择乙．因为甲乙两人平均数相同均为8，说明两人实力相当，但s 2乙＜s 2甲，乙的成绩更加稳定，所以选乙． ······················································································· 8分19．（8分）（1）14． ·········································································································· 2分（2）解：随机抽取两名运动员，共有6种等可能性结果：（甲，乙）、（甲，丙）、（甲，丁）、（乙，丙）、（乙，丁）、（丙，丁）．其中满足“有甲运动员”(记为事件A )的结果只有3种，所以P (A )＝12． ·································································································· 8分20．（7分）（1）证明：∵ ∠BCE ＋∠BDE ＝180°， ∠EDA ＋∠BDE ＝180°，∴ ∠EDA ＝∠BCE ． ·························································································· 1分 又 ∠A ＝∠A ， ································································································· 2分 ∴ △ADE ∽△ACB ． ·························································································· 3分 （2）∵ △ADE ∽△ACB ， ∴ AD AC ＝AE AB， ·········································· 4分 ∴AD AE ＝ACAB， ······································· 5分 又 ∠A ＝∠A ， ········································ 6分 ∴ △AEB ∽△ADC ． ································· 7分21．（8分）（1）将(0，3)、 (3，0)代入，得⎩⎨⎧3＝c ，0＝－9＋3b ＋c································································································· 1分解得⎩⎨⎧c ＝3，b ＝2····································································································· 2分∴ y ＝－x 2＋2x ＋3 ····························································································· 3分 ∴ 顶点坐标为(1，4) ························································································ 4分 （2）－1＜x ＜3. ······························································································ 6分 （3）－2或0 ···································································································· 8分 22．（7分）（1）解：∵∠BAC ＝90°，AB ＝AC ，∴ ∠B ＝∠C ＝45°． ··························································································· 1分 ∴ 在△BDE 中，∠BED ＋∠BDE ＝180°－∠B ＝135°， ∵ ∠EDF ＝45°，∴ ∠BDE ＋∠CDF ＝135°，∴ ∠BED ＝∠CDF ． ·························································································· 3分 ∵ ∠B ＝∠C ，∴ △EBD ∽△DCF ． ·························································································· 5分 （2 ········································································································ 7分23．（8分）（1）解：设每千克的销售价增加x 元，根据题意，得(60＋x －50) (60－2x )＝750 ··················································································· 2分 ∴ x 1＝5，x 2＝15． ····························································································· 3分 60＋5＝65或60＋15＝75 ···················································································· 4分 答：销售单价为65或75元时获得利润750元． （2）解：每千克的销售价增加x 元，利润为w 元．w ＝(60＋x －50) (60－2x ) ···················································································· 6分 ＝－2(x －10)2＋800 ···························································································· 7分 ∵ a ＝－2＜0，∴ 当x ＝10时，w 有最大值800． ········································································ 8分 60＋10＝70答：当销售单价为70元时获得最大利润，为800元． 24．（8分） （1）连接BD ．∵ AB 为⊙O 的直径，CD ⊥AB ，∴ ⌒BC ＝ ⌒BD ， ························································· 1分 ∴ ∠BDC ＝∠BCD ．∵ 四边形ABDE 为⊙O 的内接四边形，∴ ∠BDE ＋∠BAE ＝180°，即∠BDC ＋∠CDF ＋∠BAE ····· 2分∵ DE ⊥CD ， ∴ ∠CDF ＝90°， ∴ ∠BDC ＋∠BAE ＝90°．∵ ∠BCD ＝∠F AE ， ·························································································· 3分 ∴ ∠BAE ＋∠F AE ＝90°，即∠F AB ＝90°， ∴ AF ⊥AB ． 又 点A 在⊙O 上，∴ AF 与⊙O 相切． ·························································································· 4分 （2）过点O 作OG ⊥DF 垂足为G ． ∵ ∠F AB ＝∠D ＝∠APD ＝90°， ∴ 四边形APDF 是矩形， ∴ ∠F ＝90°．∵ ∠F AB ＝∠F ＝∠OGF ＝90°， ∴ 四边形AOGF 是矩形，∴ AF ＝OG ，AO ＝GF ． ···················································· 5分 设OE ＝OA ＝r ，则GE ＝r －1．在Rt △OGE 中，由勾股定理得OG 2＋GE 2＝OE 2， ···················································· 6分 即4＋(r －1)2＝r 2， ···························································································· 7分 解得r ＝5 2 ． ····································································································· 8分25．（8分）（1）令y ＝0，即(x －2)(x －m )＝0 ········································································· 1分 ∴ x 1＝2，x 2＝m ． ····························································································· 2分 当m ＝2时，x 1＝x 2，方程有两个相等的实数根； 当m ≠2时，x 1≠x 2，方程有两个不等的实数根． ∴ 不论m 为何值，方程总有实数根；∴ 不论m 为何值，该函数的图像与x 轴总有公共点． ·············································· 3分 （2）m ＝2或m ＞3或m ＜－1． ··········································································· 6分 （3）－1＜m ＜1或m ＞3． ·················································································· 8分 26．（8分）。
部编版语文九年级上学期期末专项复习：基础知识综合试卷(含答案)
部编版语文九年级上学期期末专项复习-基础知识综合学校:___________姓名：___________班级：___________考号：___________考试范围：九年级上、下册1．请运用积累的知识，完成后面小题。
文段一：“贤弟，你听我说，你如今回去，奉事父母，总以文章学业为主，人生世上，除了这事，就没有第二件可以出头。
……只要是有本事进了学，中了举人、进士，即刻就荣宗耀祖。
这就是《孝经》上所说的‘显亲扬名’，才是大孝，自身也不得受苦。
古语说得好，书中自有黄金屋，书中自有千钟sù，书中自有颜如玉。
”文段二：“功名到底是身外之物，德行是要紧的。
我看你在孝悌上用心，极是难得，却又不可因后来日子略过得顺利些，就添出一肚子里的势利见识来，改变了小时的心事。
我死之后，你一满了服，就急急的要寻一头亲事，总要穷人家的儿女，万不可贪图富贵，攀高结贵。
”（摘自吴敬梓《儒林外史》第十七回）(1)给加点的字注音，根据拼音写出相应的汉字。
奉事( ) 千钟sù( ) 孝悌( )(2)明清科举有童试、院试、乡试、会试、殿试五级，片段一提到的“举人”和“进士”分别通过的是（）A．院试和乡试 B．乡试和会试 C．乡试和殿试 D．会试和殿试(3)这两段文字分别是和对匡超人的教导。
(4)匡超人并没有听取文段二中人物的教导，而是走向了虚伪狡诈、自私冷漠。
请结合原著，简要列举一例。
2．阅读下面语段，回答问题。
我是你簇新的理想，刚从神话的蛛网里挣脱；我是你雪被下古莲的胚芽；我是你挂着眼泪的笑wō﹔我是新刷出的雪白的起跑线；是绯红的黎明正在喷薄；——祖国啊！我是你的十亿分之一，是你九百六十万平方的总和；你以伤痕累累的乳房喂养了迷wǎng的我、深思的我、沸腾的我；那就从我的血肉之躯上去取得你的富饶、你的荣光、你的自由；——祖国啊，我亲爱的祖国！(1)依次给语段中加点的字注音，全都正确的一项是（）A．zhèng hèn B．zhēng hèn C．zhèng hén D．zhēng hén(2)根据拼音写出正确的汉字。
九年级数学第一学期期末考试综合复习测试题(含答案)
九年级数学第一学期期末考试综合复习测试题（含答案）一．选择题（共10小题，每小题3分，共30分） 1．2022的相反数是( )A ．2022B ．2022-C ．12022D ．2022± 2．若代数式3125m x y -与822m nx y +-是同类项，则( )A ．73m =，83n =-B ．3m =，4n =C ．73m =，4n =- D ．3m =，4n =-3．下列四组线段中，能组成直角三角形的是( ) A ．1a =，3b =，3c = B ．2a =，3b =，4c = C ．2a =，4b =，5c =D ．3a =，4b =，5c = 4．如图所示，直线//a b ，231∠=︒，28A ∠=︒，则1(∠= )A ．61︒B ．60︒C ．59︒D ．58︒5．下列关于事件发生可能性的表述，正确的是( )A ．“在地面向上抛石子后落在地上”是随机事件B ．掷两枚硬币，朝上面是一正面一反面的概率为13C ．在同批次10000件产品中抽取100件发现有5件次品，则这批产品中大约有500件左右的次品D ．彩票的中奖率为10%，则买100张彩票必有10张中奖6．某校10名学生参加课外实践活动的时间分别为：3，3，6，4，3，7，5，7，4，9（单位：小时），这组数据的众数和中位数分别为( ) A ．9和7 B ．3和3 C ．3和4.5 D ．3和5 7．一个正多边形的每一个内角都是150︒，则它的边数为( ) A ．6 B ．9 C ．12 D ．158．若不等式组841x x x m +<-⎧⎨>⎩的解集是3x >，则m 的取值范围是( )A ．3m <B ．3mC ．3m >D ．3m9．已知关于x 的一元二次方程22(21)0x m x m --+=有实数根，则m 的取值范围是( ) A ．14m 且0m ≠ B ．14m C ．14m < D ．14m >10．如图1，一个扇形纸片的圆心角为90︒，半径为6．如图2，将这张扇形纸片折叠，使点A 与点O 恰好重合，折痕为CD ，图中阴影为重合部分，则阴影部分的面积为( )A ．9632π-B ．693π-C ．91232π-D ．94π二．填空题（共5小题，每小题3分，共15分） 11．将数据2022万用科学记数法表示为 ．12．已知当3x =时，代数式35ax bx +-的值为20，则当3x =-时，代数式35ax bx +-的值是 ．13．将抛物线229y x x =-+-向左平移2个单位，再向上平移1个单位后，得到的抛物线的解析式为 ．14．已知ABC ∆中，点O 是ABC ∆的外心，140BOC ∠=︒，那么BAC ∠的度数为 ．15．如图，在正方形ABCD 中，顶点(5,0)A -，(5,10)C ，点F 是BC 的中点，CD 与y 轴交于点E ，AF 与BE 交于点G ，将正方形ABCD 绕点O 顺时针旋转，每次旋转90︒，则第2023次旋转结束时，点G 的坐标为 ．三．解答题（一）（共3小题，每小题8分，共24分） 16．计算（1）2()(2)x y x y x +--；（2）2219(1)244a a a a --÷--+．17．如图，90ACB ∠=︒，AC AD =．（1）过点D 作AB 的垂线DE 交BC 与点E ，连接AE ．（尺规作图，并保留作图痕迹） （2）如果8BD =，10BE =，求BC 的长．18．如图，在四边形ABCD 中，AC 与BD 交于点O ，BE AC ⊥，DF AC ⊥，垂足分别为点E ，F ，且BE DF =，ABD BDC ∠=∠．求证：四边形ABCD 是平行四边形．四．解答题（二）（共3小题，每小题9分，共27分） 19．阳光中学为了丰富学生的课余生活，计划购买围棋和中国象棋供棋类兴趣小组活动使用，若购买3副围棋和5副中国象棋需要98元；若购买1副围棋和2副中国象棋需要36元．（1）求每副围棋和每副中国象棋各多少元；（2）阳光中学决定购买围棋和中国象棋共40副，总费用不超过538元，且围棋的副数不低于象棋的副数，问阳光中学有几种购买方案；（3）请求出最省钱的方案需要多少钱？20．我市某中学举行“中国梦⋅我的梦”的演讲比赛，赛后整理参赛学生的成绩，将学生的成绩分为A，B，C，D四个等级，并将结果绘制成如图所示的条形统计图和扇形统计图，但均不完整，请你根据统计图解答下列问题．（1）参加比赛的学生人数共有名，在扇形统计图中，表示“D等级”的扇形的圆心角为度，图中m的值为；（2）补全条形统计图；（3）组委会决定从本次比赛中获得A等级的学生中，选出两名去参加市中学生演讲比赛，已知A等级中男生只有1名，请用画树状图或列表的方法求出所选学生恰是一男一女的概率．21．22．某网店专售一款新型钢笔，其成本为20元/支，销售中发现，该商品每天的销售量y与销售单价x（元/支）之间存在如下关系：10400y x=-+，自武汉爆发了“新型冠状病毒”疫情该网店店主决定从每天获得的利润中抽出200元捐赠给武汉，同时又让顾客得到实惠，当销售单价定位多少元时，捐款后每天剩余利润为550元？五．解答题（三）（共2小题，每小题12分，共24分）22．如图，以点O为圆心，AB长为直径作圆，在O上取一点C，延长AB至点D，连接DC，过点A作O的切线交DC的延长线于点E，且DCB DAC∠=∠．（1）求证：CD是O的切线；（2）若6AD=，2:3BC CA=，求AE的长．23．如图，在平面直角坐标系中，直线33y x =--与x 轴交于点A ，与y 轴交于点C ．抛物线2y x bx c =++经过A 、C 两点，且与x 轴交于另一点B （点B 在点A 右侧）． （1）求抛物线的解析式；（2）若点M 是线段BC 上一动点，过点M 的直线ED 平行y 轴交x 轴于点D ，交抛物线于点E ，求ME 长的最大值及此时点M 的坐标； （3）在（2）的条件下：当ME 取得最大值时，在x 轴上是否存在这样的点P ，使得以点M 、点B 、点P 为顶点的三角形是等腰三角形？若存在，请直接写出所有点P 的坐标；若不存在，请说明理由．答案一．选择题1． B ．2． D ．3． D ．4． C ．5． C ．6． C ．7． C ．8． B ．9． B ．10． C ． 二．填空题11． 72.02210⨯．12． 30-．13． 228y x x =---．14． 70︒或110︒．15． (4,3)-． 三．解答题16．解：（1）2()(2)x y x y x +--22222x xy y xy x =++-- 2y =；（2）2219(1)244a a a a --÷--+ 23(3)(3)2(2)a a a a a ---+=÷-- 23(2)2(3)(3)a a a a a --=⋅---+ 23a a -=--． 17．解：（1）如图所示即为所求作的图形． （2）ED 垂直AB ， 90ADE EDB ∴∠=∠=︒，在Rt BDE ∆中，22221086DE BE BD =-=-=， 在Rt ADE ∆和Rt ACE ∆中， AC ADAE AE =⎧⎨=⎩， Rt ADE Rt ACE(HL)∴∆≅∆， 6EC ED ∴==， 16BC BE EC ∴=+=．18．证明：ABD BDC ∠=∠， //AB CD ∴．BAE DCF ∴∠=∠．在ABE ∆与CDF ∆中， 90BAE DCF AEB CFD BE DF ∠=∠⎧⎪∠=∠=︒⎨⎪=⎩． ()ABE CDF AAS ∴∆≅∆． AB CD ∴=．∴四边形ABCD 是平行四边形．19．解：（1）设每副围棋x 元，每副中国象棋y 元，根据题意得：3598236x y x y +=⎧⎨+=⎩，∴1610x y =⎧⎨=⎩，∴每副围棋16元，每副中国象棋10元；（2）设购买围棋z 副，则购买象棋(40)z -副， 根据题意得：1610(40)538m m +-，40m z -，2023m ∴，m 可以取20、21、22、23则有：方案一：购买围棋20副，购买中国象棋20副方案二：购买围棋21副，购买中国象棋19副方案：购买围棋22副，购买中国象棋18副方案四：购买围棋23副，购买中国象棋17副由4种方案；（3）由上一问可知共有四种方案：方案一：购买围棋20副，购买中国象棋20副；方案二：购买围棋21副，购买中国象棋19副；方案三：购买围棋22副，购买中国象棋18副；方案四：购买围棋23副，购买中国象棋17副；方案一需要20162010520x x +=； 方案二需要21161910526x x +=； 方案三需要22161810532x x +=； 方案四需要23161710538x x +=； 所以最省钱是方案一，需要520元．20．（1）解：根据题意得：总人数为：315%20÷=（人)， 表示“D 等级”的扇形的圆心角为43607220⨯︒=︒；C等级所占的百分比为8100%40% 20⨯=，所以40m=，故答案为：20，72，40．（2）解：等级B的人数为20(384)5-++=（人)，补全统计图，如图所示：（3）解：根据题意，列出表格，如下：男女1女2男女1、男女2、男女1男、女1女2、女1女2男、女2女1、女2共有6种等可能结果，其中恰是一男一女的有4种，所以恰是一男一女的概率为42 63 =．21．解：由题意可得(20)(10400)200550x x--+-=解得125x=，235x=因为要让顾客得到实惠，所以25x=答：当销售单价定为25元时，捐款后每天剩余利润为550元．22．（1）证明：连接OC，OE，如图，AB为直径，90ACB∴∠=︒，即190BCO∠+∠=︒，又DCB CAD∠=∠，1CAD∠=∠，1DCB∴∠=∠，90DCB BCO ∴∠+∠=︒，即90DCO ∠=︒， CD ∴是O 的切线；（2）解：EC ，EA 为O 的切线， EC EA ∴=，AE AD ⊥， OC OA =， OE AC ∴⊥，90BAC EAC ∴∠+∠=︒，90AEO EAC ∠+∠=︒， BAC AEO ∴∠=∠， tan tan BAC AEO ∴∠=∠，∴23BC AO AC AE ==， Rt DCO Rt DAE ∆∆∽，∴23CD OC OA DA AE AE ===， 2643CD ∴=⨯=， 在Rt DAE ∆中，设AE x =，222(4)6x x ∴+=+， 解得52x =． 即AE 的长为52．23．解：（1）直线33y x =--与x 轴、y 轴分别交于点A 、C ， (1,0)A ∴-，(0,3)C -抛物线2y x bx c =++经过点(1,0)A -，(0,3)C -， ∴103b c c -+=⎧⎨=-⎩，解得23b c =-⎧⎨=-⎩，∴抛物线的解析式为223y x x =--．（2）设(E x ，223)(03)x x x --<<，则(,3)M x x -， 222393(23)3()24ME x x x x x x ∴=----=-+=--+，∴当32x =时，94ME =最大，此时3(2M ，3)2-． （3）存在．如图3，由（2）得，当ME 最大时，则3(2D ，0)，3(2M ，3)2-，32DO DB DM ∴===； 90BDM ∠=︒，223332()()222OM BM ∴==+=． 点1P 、2P 、3P 、4P 在x 轴上， 当点1P 与原点O 重合时，则1322PM BM ==，1(0,0)P ； 当2322BP BM ==时，则232632322OP -=-=， 2632(2P -∴，0)； 当点3P 与点D 重合时，则3332P M P B ==，33(2P ，0)； 当4322BP BM ==时，则432632322OP +=+=， 4632(2P +∴，0)． 综上所述，1(0,0)P ，2632(2P -，0)，33(2P ，0)，4632(2P +，0)．。
2025届河北省石家庄市赵县物理九年级第一学期期末复习检测试题含解析
2025届河北省石家庄市赵县物理九年级第一学期期末复习检测试题注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。
2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。
3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。
4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。
一、选择题1．电路中获得持续电流的条件是（）A．电路中存在大量的自由电子B．电路中电压必须足够大C．电路中有电源，且电路闭合D．电路中有电源，且有用电器2．铜的比热容是铅的的3倍．质量相同的铜块和铅块，若它们升高的温度之比为1∶2，则它们吸热之比为A．2∶3B．3∶2C．6∶1D．1∶63．甲、乙两个滑轮组如图所示，其中的每一个滑轮重力都相同，用它们分别将重物G1，G2提高相同的高度，不计滑轮组的摩擦与绳重，下列说法中正确的是（）A．若G1=G2，拉力做的额外功相同B．若G1> G2，拉力做的总功相同C．若G1=G2，甲的机械效率大于乙的机械效率D．用甲、乙其中的任何一个滑轮组提起不同的重物，机械效率不变4．电焊利用电流的热效应熔化焊条．某型号的电焊机接在电压220V的家庭电路上，输出电压40V，输出功率2200W．编号为甲、乙、丙、丁的四种橡胶绝缘铜芯线在常温下安全载流量（长时间通电的最大安全电流）如下表所示．从安全的角度考虑，该电焊机的输出导线应该选用A．甲B．乙C．丙D．丁5．如图（a）所示电路中，闭合开关后，两个电压表指针偏转均如图（b）所示，则电阻R1和R2两端的电压分别为A．7 V 1.4V B．5.6V 1.4V C．1.4V 7V D．1.4V 5.6V6．关于家庭电路和安全用电，下列说法正确的是A．使用有金属外壳的用电器时，应将其外壳接在零线上B．家庭电路中，保险丝熔断后可用铜丝代替C．使用试电笔判断火线、零线时，手要按住笔尾金属体D．若空气开关“跳闸”，一定是因为用电器的总功率过大7．有两个定值电阻，分别标有“6V0.5A”和“12V1A”字样，当将它们串联在电路中时，电源电压不可超过A．6V B．12V C．18V D．24V8．关于燃料的热值，以下说法中正确的是（）A．燃料燃烧时，质量越大，热值越大B．燃料不完全燃烧时的热值比完全燃烧时的热值小C．燃烧1千克某种燃料放出的热量叫这种燃料的热值D．燃料的热值与燃料的种类有关系，与燃料的质量和燃烧状况无关9．在使用图所示的插线板时发现：只有在开关闭合时，指示灯才能发光，插孔才可以提供工作电压：即使指示灯损坏，开关闭合时插孔也能提供工作电压．下图中插线板电路连接符合上述现象及安全用电要求的是（）A．B．C．D．10．下列情况中，属于防止电热危害的是（）A．用电熨斗熨烫衣服B．用电饭锅煮饭C．冬天用电暖气取暖D．电脑机箱内有小风扇11．小明同学设计的家庭电路如图所示，其中设计正确的是A ．插座dB ．开关cC ．电灯bD ．插座a12．如图所示，把重为G 的物体甲从A 点竖直向上匀速拉至B 点的过程中，绳的拉力对甲做的功为W AB ；用平行于斜面的拉力把重也为G 的物体乙沿斜面从C 点匀速拉至与B 等高的D 点，在此过程中的拉力对乙做的功为W CD ，斜面的机械效率为（ ）A ．AB CD W W B ．CD ABW W C ．CD AB CDW W W - D ．AB CD ABW W W + 二、填空题 13．汽车发动机一般是柴油机或汽油机等内燃机。
期末复习题 2023—2024学年统编版语文九年级上册
2023-2024年度上学期期末复习质量检测九年级语文试题卷一、单选题（本大题共3小题，共6分）1.下列有关作家作品的连线，不正确的一项是（）A. 《我爱这土地》——艾青——《九三年》B. 《沁园春•雪》——毛泽东——革命家C. 《你是人间四月天》——林徽因——建筑学家、文学家D. 《水浒传》——施耐庵——元末明初2.下列加下划线的成语使用有错误的一项是（）。
A. 泰州举办老街旅游文化节，各地游客纷至沓来B. 洪宗礼先生说，没有实践，教材编写便缺了源头活水C. 诈骗分子推陈出新，利用最新的市场漏洞，想出了新的诈骗手法D. 《朗读者》《见字如面》《经典咏流传》等文化类节目如一股股清泉，沁人心脾3.下列语句中没有语病的一项是（）。
A. 汪国真的诗作曾点燃了一代人的青春梦想。
他猝然长逝，怎不让人扼腕叹息B. 通过我市举办的“名师好课”系列送教活动，促进了全市城乡教育的均衡发展C. “赣剧进校园”的成效并不显著，原因是对地方文化的重要性认识不足造成的D. 实施“校园足球计划”，旨在普及足球运动，进一步培养青少年足球运动水平二、默写（本大题共1小题，共4分）4.填空。
(1) 小时候，______ ，我在这头，母亲在那头。
而现在，______ ，我在这头，大陆在那头。
(2) 为什么我的眼里常含泪水？______(3) 毛泽东《沁园春·雪》中由写景到论史，起承上启下作用的句子是“______，______ ”。
(4) “月”是古诗词中的常见意象。
温庭筠在《商山早行》中描写月清霜冷的诗句是“______ ，______ ”；杜甫在《月夜忆舍弟》中流露月夜思乡之情的诗句是“______ ，______ ”。
三、综合题（本大题共1小题，共9分）5.阅读下面的文字，完成题目。
①毛泽东诗词纵览天下风云，俯瞰（kàn）历史兴衰，感受时光飞逝，把握时代潮流，反映了毛泽东的历史观和人生观，浸（jìn）透着历史智慧，洋溢．．着壮志豪情。
江西省南昌市名校2025届化学九年级第一学期期末复习检测试题含解析
江西省南昌市名校2025届化学九年级第一学期期末复习检测试题注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。
2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。
3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。
4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。
一、单选题（本大题共10小题，共20分）1．下列客观事实的微观解释正确的是A．凉开水不能养鱼是因为水中没有氧原子B．氯化钠溶液能导电是因为氯化钠由钠离子和氯离子构成C．一氧化碳能燃烧，二氧化碳能灭火是因为二者分子构成不同D．汞可做温度计的填充物是因为汞原子的体积受热变大，遇冷变小2．为了能及时发现煤气泄漏，常在煤气中加入少量有特殊气味的乙硫醇（C2H5SH），乙硫醇燃烧的化学方程式为：2C2H5SH+9O24CO2+2X+6H2O，则x的化学式为（）A．S B．SO3C．CO D．SO23．下列各组变化中，每个转化在一定条件下均可一步实现的是（）A．①②B．①③C．②③D．①②③4．下列物质的用途中，利用其物理性质的是（）A．氢气作清洁燃料B．碳用于冶炼金属C．氧气用于切割金属D．干冰用于人工降雨5．下列物质的鉴别方法中，错误的是A．用水来鉴别氢氧化钠和硝酸铵固体B．用肥皂水鉴别硬水和软水C．用燃烧的木条鉴别氮气和二氧化碳D．观察颜色来区分铁丝和铜丝6．在pH=1的无色溶液中，下列离子能大量共存的组是（）A．NO3-、Cu2+、Na+、SO42-B．Cl-、K+、OH-、Ba2+C．K+、SO42-、Na+、NO3-D．Ca2+、Cl-、CO32-、Na+7．下列关于水的说法正确的是（）A．我国水资源丰富，人均水量位于世界前列B．自然界中，无色透明的水都可以直接饮用C．生活中常用煮沸的方法降低水的硬度D．水体有一定的自净功能，城市生活污水可直接排放8．下列有关实验现象措述正确的是A．镁条在空气中燃烧，发出白色火焰B．向硬水中加入肥皂水振荡，有大量浮渣C．电解水正极产生的气体，点燃产生淡蓝色火焰D．二氧化碳能使被石蕊溶液染成紫色的干燥纸花变红9．只用一种试剂一次性就能把氢氧化钠溶液、稀盐酸和氯化钠溶液鉴别开来，这种试剂是（）A．石蕊溶液B．氯化钡溶液C．酚酞溶液D．硝酸银10．下列化学用语表达正确的是( )A．3S:“3” 表示三个硫元素B．CaCl2中Ca元素的化合价为-2价C．Mg+2“表示一个镁离子带两个单位正电荷D．CO2:“2” 表示一个二氧化碳分子中含有两个氧原子二、填空题（本大题共1小题，共4分）11．下图为某钙片的商品标签，请根据标签的有关信息完成下列各题：（1）主要成分碳酸钙（CaCO3）由______________种元素组成。
九年级语文上册期末复习测试题(含答案)
九年级语文上册期末复习测试题（含答案）一、积累与运用（26分）1.下列词语中加点字注音、字形全部正确的一项是（）（2分）A.莅．临（wèi）余晖．（huī）迭．起（dié）合．颜悦色（hé）B.驾驭．（yù）亢．奋（kàng）元勋．（xūn）取义成仁．（rén）C.镐．头（gǎo）慢．游（màn）秀颀．（qín）风云变幻．（huàn）D.健．树（jiàn）旗帜．（zhì）妩．媚（fǔ）经．世奇才（jīng）2.下列词语书写完全正确的一项是（）（2分）A.朗润矜持见义思迁家喻户晓B.遨游娴熟和颜悦色因地治宜C.斟酌荣膺人情世故相辅相成D.聪颖鼎盛穿流不息取义成仁3.下列句子中，加点词语使用最恰当．．．的一项是（）A．车间一线的青年工人勤学苦练，对技术精益求精．．．．，争当“青年岗位能手”。
B．志愿者在冬奥会闭幕式上向各国健儿挥手，言外之意．．．．是：欢迎再来中国！C．果农们冒着炎热的天气奋战了好几个昼夜，轻而易举．．．．地把水果销售一空。
D．市民陈先生参与毽子操、游泳、跳绳等多项全民云健身运动，各得其所．．．．。
4.下列表述正确的一项是（）（2分）A.“毛遂在平原君那里，三年也没有遇到施展才华的机会，于是他大胆自荐，并提出了一个观点。
”是一个表因果关系的复句B.《红楼梦》是我国古典小说的巅峰之作，叙述了以贾家为代表的四大家族的兴衰史，反映了封建社会广阔的社会现实。
C.明清科举制度，童生经过童试，录取人学后称为“进学”，也就成了秀才；秀才参加乡试，考中的是贡士。
D.《三国演义》是我国第一部章回体长篇历史演义小说，该书反映了三国时期政治腐败、生灵涂炭、农民起义、诸侯割据的社会现实。
5.下列句子没有语病的一项是（）（2分）A.各地中小学要对延期开学期间学生居家学习的情况逐一进行诊断、摸底，精准掌握每个学生的学习情况。
2023年北京三帆中学英语九年级第一学期期末复习检测试题含解析
2023年北京三帆中学英语九年级第一学期期末复习检测试题注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
Ⅰ. 单项选择1、It’s said that many workers in our city have _________ some organizations to help the elderly and the disabled people. They are helpful and we should learn from them.A．stayed up B．put up C．took up D．set up2、—Whose hair band is this?—It _____ be Grace’s. She is the only girl at the meeting.A．might B．wouldn’tC．must D．can’t3、--- Tom, you won’t mak e much progress_________ you work really hard.---Ok, I will try my best.A．if B．though C．unless D．when4、---Ms. Wang，I'm afraid I can't finish the work in two days.---Don't worry. I'll give you ____________ days.A．two another B．two moreC．more two D．two many5、Don’t talk . Your grandmother is sleeping now.A．happily B．nearly C．loudly D．hardly6、—How many letters have you got from your online friends since last year?—_______. We’re just chatting with each other when we’re free.A．Nothing B．None C．No D．No one7、--Where’s your father? We haven’t seen each other .---____________.A．He has been to America B．He has gone to EnglandC．He is going to England D．He would visit my grandparents8、My twin brothers promised my parents to give up playing computer games, butof them made it.A．none B．either C．neither9、Many people are shy when they ________ English so before you begin, take a deep breath and smile.A．say B．speak C．tell D．talk10、--- Look at the lovely dog. Guess_______ at birth.--- I think he might be 100 grams.A．what could he do B．what his weight wasC．what was his weight D．what he could doⅡ. 完形填空11、第二节词语填空（共10小题；每小题1分，满分10分）阅读下面的短文，掌握其大意，然后从下列各小题所给的A、B、C三个选项中选出可以填入空白处的最佳答案，并在答题卡上将该编号字母涂黑。
人教版九年级数学上册期末综合复习测试题(含答案)
人教版九年级数学上册期末综合复习测试题（含答案）时间：100分钟 总分：120分一、 选择题（每题3分，共24分）1．已知关于x 的方程()222310---=m m x x +是一元二次方程，则m 的值为（ ） A ．2m =B ．4m =C ．2m =±D ．2m =-2．如图，将AOB ∆绕点O 按逆时针方向旋转40°后得到A OB ''△，若15AOB ∠=︒，则AOB '∠的度数是 （ ）A ．25°B ．30°C ．35°D ．40°3．顶点(2,1)，且开口方向、形状与函数22y x =的图像相同的抛物线是 （ ） A ．221y x =+ B ．22(2)1y x =-+ C ．22(2)1y x =++D ．22(2)1y x =+-4．把方程2630x x +-=化成2)x m n （的形式，则m n += （ ） A ．15-B ．9C ．15D ．65．如图，ABC ∆内接于O ，直径8cm AD =，=60B ∠︒，则AC 的长度为 （ ）A ．5cmB ．42C ．43D ．6cm6．在一个不透明的口袋中有红色、黄色和绿色球共60个，它们除颜色外，其余完全相同．在不倒出球的情况下，要估计袋中各种颜色球的个数．同学们通过大量的摸球试验后，发现摸到红球、黄球和绿球的频率分别稳定在20%，40%和40%．由此，推测口袋中黄色球的个数有（ ） A ．15个B ．20个C ．21个D ．24个7．在同一坐标系中，一次函数y ax k =+与二次函数2y kx a =+的图象可能是 （ ）A ．B ．C ．D ．8．二次函数2y ax bx c =++的图像如图所示，对称轴是直线1x =．下列结论：①0abc >；②30a c +>；③a c b +<-；④520a b c -+<．其中结论正确的个数为 （ ）A ．1个B ．2个C ．3个D ．4个二、填空题（每题3分，共24分）9．若n 是方程2210x x --=的一个根，则代数式232n n -+-的值是________． 10．如图，AB 是半圆的直径，C 、D 是半圆上的两点，且20BAC =︒∠，点D 是AC 的中点，则BAD ∠=______．11．点()()1122,,,A x y B x y 在二次函数232y x x =-++的图像上，若122x x <<-，则1y 与2y 的大小关系是1y _______________2y ．（用“>”、“<”、“=”填空）12．已知关于x 的一元二次方程2()0(,,a x h k a h k -+=都是常数，且0)a ≠的解为1213x x =-=，，则方程2(1)0(,,a x h k a h k --+=都是常数，且0)a ≠的解为___________．13．如图，正方形ABCD 的边长为3，点E 为AB 的中点，以E 为圆心，3为半径作圆，分别交AD 、BC 于M 、N 两点，与DC 切于P 点．则图中阴影部分的面积是______．14．如图，正方形OABC 的顶点B 在抛物线2y x 的第一象限的图象上，若点B 的纵坐标是横坐标的2倍，则对角线AC 的长为_________．15．如图，抛物线2y ax c =+与直线y mx n =+交于()1,A p -，()3,B q 两点，则不等式2ax mx c n ++<的解集是__________．16．如图，以(0,3)G 为圆心，半径为6的圆与x 轴交于A ，B 两点，与y 轴交于C ，D 两点，点E 为⊙G 上一动点，CF AE ⊥于F ，点E 在G 的运动过程中，线段FG 的长度的最小值为______．三、解答题（每题8分，共72分） 17．解方程： (1)(2)(3)12x x --= (2)23410x x -+=18．已知关于x 的一元二次方程24250x x m --+=有两个实数根． (1)求m 的取值范围；(2)若该方程的两个根都是符号相同的整数，直接写出它的根．19．已知二次函数图像与x 轴两个交点之间的距离是4个单位，且顶点M 为()14-，，求二次函数的解析式．20．如图，抛物线2(0)y ax bx c a =++≠与直线1y x =+相交于(-10)A ，，(4)B m ，两点,且抛物线经过点(50)C ，（1）求抛物线的解析式；（2）点P 是抛物线上的一个动点(不与点A ．点B 重合)，过点P 作直线PD ⊥x 轴于点D ，交直线AB 于点E.当PE =2ED 时，求P 点坐标；（3）点P 是直线上方的抛物线上的一个动点，求ABP ∆的面积最大时的P 点坐标.21．一个不透明的口袋中有四个完全相同的小球．把它们分别标记为1，2，3，4．(1)随机摸取一个小球的标号是偶数，该事件的概率为______；(2)小雨和小佳玩摸球游戏，两人各摸一个球，谁摸到的数字大谁获胜．小雨先从口袋中摸出一个小球，不放回，小佳再从口袋中摸出一个小球．用画树状图（或列表）的方法，分别求出小雨和小佳获胜的概率．22．如图，已知女排球场的长度OD 为20米，位于球场中线处的球网AB 的高度2.24米，一队员站在点O 处发球，排球从点O 的正上方2米的C 点向正前方飞去，排球的飞行路线是抛物线的一部分，当排球运行至离点O 的水平距离OE 为6米时，到达最高点G ，以O 为原点建立如图所示的平面直角坐标系．(1)写出C 点坐标___________；B 点坐标___________．(2)若排球运行的最大高度为3米，求排球飞行的高度p （单位：米）与水平距离x （单位：米）之间的函数关系式（不要求写自变量x 的取值范围）；(3)在（2）的条件下，这次所发的球能够过网吗？如果能够过网，是否会出界？请说明理由．23．如图，在Rt ABC △中，90ACB ∠=︒，延长CA 到点D ，以AD 为直径作O ，交BA 的延长线于点E ，延长BC 到点F ，使BF EF =．(1)求证：EF 是O 的切线．(2)若9OC =，4AC =，8AE =，则BC =______，BE =______．24．如图，已知等边ABC ，直线AM BC ⊥，点M 为垂足，点D 是直线AM 上的一个动点，线段CD 绕点D 顺时针方向旋转60°得线段DE ，联结BE 、CE ．(1)如图1，当点D 在线段AM 上时，说明BE AB ⊥的理由；(2)如图2，当点D 在线段MA 的延长线上时，设直线BE 与直线AM 交于点F ，求BFM ∠的度数；(3)定义：有一个内角是36︒的等腰三角形称作黄金三角形，联结DB ，当DBE 是黄金三角形吋，直接写出BEC ∠为______度．25．抛物线2y ax 2x c =++与x 轴交于(1,0)A -、B 两点．与y 轴交于点(0,3)C 、点(,3)D m 在抛物线上．(1)求抛物线的解析式．(2)如图1，连接BC 、BD ，点P 在对称轴左侧的抛物线上，若PBC DBC ∠=∠，求点P 的坐标．(3)如图2，过点A 的直线∥m BC ，点Q 是直线BC 上方抛物线上一动点，过点Q 作QE m ⊥，垂足为点E ，连接BE ，CE ，CQ ，QB ．当四边形BECQ 的面积最大时，求点Q 的坐标及四边形BDCQ 面积的最大值。
人教版九年级上册数学 期末复习练习 选择题
人教版九年级上册数学期末复习选择题练习一.选择题1．抛物线y=(x−2)2−3的顶点坐标是（）A．(2，−3)B．(−2，3)C．(2，3)D．(−2，−3) 2．把方程x2−4x+2=0转化成(x+m)2=n的形式，则m，n的值是（）A．2，2B．2，−2C．−2，2D．−2，−23．下列图形中，既是中心对称图形又是轴对称图形的是（）A．B．C．D．4．下列方程中，关于x的一元二次方程是（）A．1x2+1x=20B．3x2+x=20C．ax2+bx+c=0D．x2+2x=x2−1 5．若a，b是方程x2+2x−2023=0的两个实数根，则a2+3a+b的值是（）．A．2021B．2022C．2023D．20246．关于二次函数y=-（x-3）2+2的最值，下列说法正确的是（）A．有最大值3B．有最小值3C．有最大值2D．有最小值27．中国男子篮球职业联赛(简称：，分常规赛和季后赛两个阶段进行，采用主客场赛制(也就是参赛的每两个队之间都进行两场比赛).2022−2023CBA常规赛共要赛240场，则参加比赛的队共有（）A．80个B．120个C．15个D．16个8．如表是代数式ax2+bx的值的情况，根据表格中的数据，可知方程ax2+bx=6的根是（）x……-3-2-101234……ax2+bx……1262002612……A．x1=−2，x2=3B．x1=2，x2=3C．x1=2，x2=3D．x1=−2，x2=−39．羽毛球比赛中某次羽毛球的运动路线可以看作是如图所示的抛物线y=−14x2+34x+1图象的一部分，其中出球点B离地面O点的距离是1米，则球落地点A到O点的距离是（）．A．1米B．3米C．4米D．2516米10．如图，△AOB绕点O逆时针旋转65°得到△COD，若∠A=100°，∠D=50°，则∠BOC的度数是（）A．30°B．35°C．45°D．65°11．要组织一次篮球邀请赛，参赛的每两个队之间都要比赛一场，据场地和时间等条件的限制，赛程计划安排7天，每天安排4场比赛，刚好完成所有比赛．设比赛组织者邀请x个队参赛，则根据题意所列方程正确的是（）A．x(x+1)=28B．x(x−1)=28C．12x(x+1)=28D．12x(x−1)=2812．如表是二次函数y=ax2+bx+c的几组对应值：x 6.17 6.18 6.19 6.20y=ax2+bx+c-0.03-0.010.020.04根据表中数据判断，方程ax2+bx+c=0的一个解x的范围是（）A．6.16<x<6.17B．6.17<x<6.18C．6.18<x<6.19D．6.19<x<6.2013．如图所示，在长方形ABCD中，AC是对角线.将长方形ABCD绕点B顺时针旋转90°到长方形GBEF位置，H是EG的中点.若AB=6，BC=8，则线段CH的长为（）A．25B．41C．210D．2114．如图，在平面直角坐标系中，菱形OABC的边长为26，点B在x轴的正半轴上，且∠AOC=60°，将菱形OABC绕原点O逆时针方向旋转60°，得到四边形OA'B'C'(点A'与点C重合)，则点B'的坐标是（）A．(36，32)B．(32，36)C．(32，62)D．(62，36)15．如图，AB是⊙O的直径，C是⊙O上一点.若∠BOC=66°，则∠A的度数为（）A．30°B．33°C．45°D．60°16．如图，OA，OB，OC都是⊙O的半径，∠AOB=2∠BOC，则下列结论不正确的是（）A．AB=2BC B．∠ACB=2∠CABC．∠ACB=∠BOC D．∠ABO+∠BOC=90°17．如图，在△ABC中，∠BAC＝120°，将△ABC绕点C逆时针旋转得到△DEC，点A，B的对应点分别为D，E，连接AD．当点A，D，E在同一条直线上时，下列结论中一定正确的是（）A．∠ABC＝∠ADC B．CB＝CD C．DE＋DC＝BC D．AB∥CD18．如图，AB为⊙O的直径，弦CD⊥AB于点E，已知OE=6，DO=10，则CD的长为（）A．16B．12C．10D．819．甲、乙两人掷两个普通的立方体骰子，若掷出的点数之和为7，则甲赢；若掷出的点数之和为8，则乙赢．这个游戏规则（）．A．公平B．对甲有利C．对乙有利D．无法判断20．一项“过关游戏”规定：在过第n关时要将一颗质地均匀的骰子(六个面上分别刻有1到6个点)抛掷n次，若n次抛掷所出现的向上一面的点数之和大于54n2，则算过关；否则，不算过关．能过第二关的概率是（）．A．1318B．518C．14D．1921．如图，已知▱ABCD中，AE⊥BC于点E，以点B为中心，取旋转角等于∠ABC，把△BAE顺时针旋转，得到△BA'E'，连接DA'.若∠ADC=60°，∠ADA'=50°，则∠DA'E'的大小为（）A．130°B．150°C．160°D．170°22．在一个不透明的袋子里装有红球．黄球共20个，这些球除颜色不同外其余都相同．小明通过多次试验发现，摸出红球的频率稳定在0.25左右，则袋子中红球的个数最有可能是（）．A．5个B．10个C．12个D．15个23．如图，已知AB是⊙O的直径，点C是弧AB的中点，点D在AB的延长线上，连接CD交⊙O于点E，若AB=2DE，则∠D=（）A．20°B．22.5°C．25°D．30°24．一个布袋里装有4个只有颜色不同的球，其中3个红球，1个白球．从布袋里摸出一个球，记下颜色后放回，搅匀，再摸出一个球，则两次摸到的球都是红球的概率是（）．A．116B．12C．38D．91625．如图，AB是⊙O的直径，△⊙O，OC⊥AD，延长AB，CD在⊙O外相交于点E，若∠ACD= 100°，则∠E的度数是（）A．25°B．30°C．35°D．40°26．二次函数y=ax2+bx+c(a≠0)的部分图象如图所示，图象过点(-1，0)，对称轴为直线x=2，下列结论：①abc<0；②4a+c>2b；③3b-2c>0；④若点A(-2，y1)、点B(-12，y2)、点C(72，y3)在该函数图象上，则y1<y3<y2；⑤4a+2b≥m(am+b)(m为常数).其中正确的结论有（）A．5个B．4个C．3个D．2个27．某小组做“用频率估计概率”的试验时，绘出某一结果出现的频率折线图如图所示，则符合这一结果的试验可能是（）．A．抛一枚硬币，出现正面朝下B．掷一个正六面体的骰子，出现3点朝上C．一副去掉大小王的扑克牌洗匀后，从中任抽一张牌的花色是红桃D．从一个装有2个红球和1个黑球的袋子中任取一球，取到的是黑球。
人教版九年级数学上册期末基础复习测试题(含答案)
人教版九年级数学上册期末基础复习测试题（含答案）时间：100分钟 总分：120分一、选择题（每题3分，共24分）1．下列图形中，是轴对称图形而不是中心对称图形的有 （ ）A ．B ．C ．D ．2．下列一元二次方程中，没有实数解的是 （ ） A ．220x x -= B ．()()130x x --= C ．220x -=D ．210x x ++=3．下列事件中，属于必然事件的是 （ ） A ．明天下雨B ．篮球队员在罚球线投篮一次，未投中C ．掷一枚硬币，正面朝上D ．任意画一个三角形，其内角和是180°4．若⊙A 半径为5，圆心A 的坐标是()12，，点P 的坐标是()52，，那么点P 与A 的位置关系为( ) A ．点P 在⊙A 内B ．点P 在⊙A 上C ．点P 在⊙A 外D ．无法确定5．如果抛物线2+=+y ax bx c 经过点()2,3--和()5,3-，那么抛物线的对称轴为 （ ） A ．3x =B ．3x =-C ．32x =D ．32x =-6．如图，C 、D 是O 上直径AB 两侧的点，若20ABC ∠=︒，则D ∠等于 （ ）A ．60︒B ．65︒C ．70︒D ．75︒7．将两块斜边长度相等的等腰直角三角形板如图①摆放，如果把图①中的BCN△绕点C 逆时针旋转90︒得ACF △，连接MF ，如图②．下列结论错误的是 （ ）A ．ABC CED △≌△B ．BCN ACF △≌△C ．AMC BCN △≌△D ．MFC MNC △≌△ 8．如图，在平面直角坐标系中，点A 在抛物线222y x x -=+上运动．过点A 作AC x ⊥轴于点C ，以AC 为对角线作矩形ABCD ，连接BD ，则对角线BD 的最小值 （ ）A ．0.5B ．1C ．1.5D ．2二、填空题（每题3分，共24分）9．若关于x 的一元二次方程()2100mx nx m --=≠的一个解是1x =，则m n -的值是______．10．已知平面直角坐标系中，15A a B b （，）、（，）关于原点对称，则a b +＝_____．11．如果二次函数()2224y a x x a =+++-的图像经过原点，那么=a ______．12．一个不透明的袋中装有若干个红球和10个白球， 摇匀后每次随机从袋中摸出一个球， 记下颜色后放回袋中， 通过大量重复摸球试验后发现，摸到白球的频率是0.4，则袋中红球约为_________个．13．如图，正方形ABCD 四个顶点都在⊙O 上，点P 是在弧BC 上的一点（P 点与C 点不重合），则CPD ∠的度数是_____．14．已知2222a b a b++-=，则22()(1)20+的值为___________．a b15．抛物线2=++上部分点的横坐标与纵坐标的对应值如表：y ax bx cx …4-2-0 2 4 …y …m n m 1 0 …由表可知，抛物线与x轴的一个交点的坐标是（4，0），则抛物线与x轴的另一个交点的坐标是_____．16．如图，在平面直角坐标系中，正方形ABCD的边BC与x轴重合，顶点A、D 在抛物线2=-+上．若抛物线的顶点到x轴的距离比BC长4，则c的值为4y x c_____．三、解答题（每题8分，共72分）17．解方程(1)()2(30-=+；3)x x x+(2)2250x x+-=．18．如图，网格中每个小正方形的边长都是单位1.(1)画出将ABC 绕点O 顺时针方向旋转90︒后得到的A B C '''； (2)请直接写出A '，B '，C '三点的坐标．19．已知抛物线2y x bx c =-+经过(1,0)A -、(3,0)B 两点． (1)求抛物线的解析式和顶点坐标； (2)点P 为抛物线上一点、若10PABS =，求出此时点P 的坐标．20．5张背面相同的卡片，正面分别写有不同1，2，3，4，7中的一个正整数．现将卡片背面朝上．(1)求从中任意抽出一张，正面的数是偶数的概率．(2)连续摸出4张卡片（不放回），已知前2张正面的数分别为1，7．求摸出的4张卡片的数的总和为奇数的概率（要求画树状图或列表）．21．直播购物已经逐渐走进了人们的生活，某电商直播销售一款水杯，每个水杯的成本为30元，当每个水杯的售价为40元时，平均每月售出600个，通过市场调查发现，若售价每上涨1元，其月销售量就减少10个．为了尽快减少库存，当某月月销售利润恰好为10000元时，求每个水杯的售价．22．如图，一个圆形喷水池的中央竖直安装了一个柱形喷水装置OA ，A 处的喷头向外喷水，水流在各个方向上沿形状相同的抛物线路径落下，水流喷出的高度(m)y 与水平距离(m)x 之间的关系式是252(0)4y x x x =-++>．(1)喷头A 离地面O 的高度是多少？ (2)水流喷出的最大高度是多少？(3)若不计其他因素，水池的半径OB 至少为多少，才能使喷出的水流不落在池外？23．如图，在Rt △ABC 中，∠C ＝90°，BC ＝8，AC ＝6，动点P 从点A 开始，沿边AC 向点C 以每秒1个单位长度的速度运动，动点D 从点A 开始，沿边AB 向点B 以每秒 53个单位长度的速度运动，且恰好能始终保持连接两动点的直线PD ⊥AC ，动点Q 从点C 开始，沿边CB 向点B 以每秒2个单位长度的速度运动，连接PQ ．点P ，D ，Q 分别从点A ，C 同时出发，当其中一点到达端点时，另两个点也随之停止运动，设运动时间为t 秒（t ≥0）．(1)当t =3时，求PD 的长？(2)当t 为何值时，四边形BQPD 的面积为△ABC 面积的一半？(3)是否存在t 的值，使四边形PDBQ 为平行四边形？若存在，求出t 的值；若不存在，说明理由．24．如图，ABC ∆中，AC BC =，D 为AB 上一点，⊙O 经过点A ，C ，D ，交BC 于点E ，过点D 作DF BC ∥，交O 于点F ．求证： (1)AB ∥CF (2)AF EF =．25．如图1，直线22y x =-+交x 轴于点A ，交y 轴于点C ，过A 、C 两点的抛物线212y x bx c =-++与x 轴的另一交点为B ．(1)请直接写出该抛物线的函数解析式；(2)点D 是第二象限抛物线上一点，设D 点横坐标为m ． ①如图2，连接BD ，CD ，BC ，求BDC 面积的最大值；②如图3，连接OD ，将线段OD 绕O 点顺时针旋转90︒，得到线段OE ，过点E 作EF x ∥轴交直线AC 于F ．求线段EF 的最大值及此时点D 的坐标。
2025届成都市教科院附属学校英语九年级第一学期期末复习检测试题含解析
2025届成都市教科院附属学校英语九年级第一学期期末复习检测试题考生请注意：1．答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内，不得在试卷上作任何标记。
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Ⅰ. 单项选择1、She________live alone. But she________living alone because she feels lonely.A．used to, doesn’t used to B．is used to, was used toC．used to, is not used to D．was used to, doesn’t used to2、The ____________ of printing helped to spread the knowledge.A．result B．experience C．invention D．reason3、—How is your head teacher?—Our head teacher is _________ with us and we usually feel nervous in his lesson.A．kind B．pleased C．strict D．good4、Look! Some _______ are on the farm..A．horse and cows B．monkey and cowC．sheep and cows D．sheep and cow5、—Sonia, is this your dictionary?—Oh, no, it’s not ______. Ask Li Lei. He is looking for ______.A．me; hers B．mine; him C．my; her D．mine; his6、-- Dad, about ________ of our classmates wear glasses.-- Oh, that's terrible. You all should take good care of your eyes.A．three fourthB．third fourthC．third fourthsD．three quarters7、—May we leave the classroom now? —No, you_____. You______to leave until the bell rings.A．can’t; are allowed B．mustn’t; aren’t allowedC．needn’t; are allowed D．needn’t; aren’t allowed8、— Dad, I am af raid I can’t pass the exam.—If you keep on studying hard, you will make it.A．succeed B．fail C．produce9、A new road __________ near my school next year.A．builds B．will buildC．is built D．will be built10、Frank had to take a ________/ breɪk/ and ate something after working all night.A．bread B．blow C．brown D．breakⅡ. 完形填空11、When the Spring Festival falls, red flowers bloom (盛开) on the windows of my home. Of course,these are not 1 flowers. But in the cold of 2 , these wonderful flowers bring warmth to us.They are made of paper by my3 ,who is now aged 70. With a few cuts, she4 a piece of paper into a beautiful work of art.When my grandma was young, she was considered clumsy(笨拙的) in the 5 . But on a coldwinter night, she saw some beautiful red paper 6 on her new neighbor's windows She was so interested in it and decided to 7from her neighbor.Tons of paper was wasted, and her fingers werecut many times. But she 8 practicing. It took 10 years 9 my grandma could make paper art skillfully (娴熟地). The red flowers, blooming like burning fire, light up her world. Now, everyone in the village 10 her.My grandma's story has shown me what it takes to realize one's dream.1．A．nice B．real C．full D．sweet2．A．spring B．summer C．autumn D．winter3．A．sister B．aunt C．mother D．grandma4．A．changes B．spreads C．places D．bums5．A．city B．town C．villages D．block6．A．art B．money C．walls D．books7．A．buy B．steal C．learn D．borrow8．A．ended up B．kept on C．put off D．thought about9．A．before B．after C．while D．since10．A．serves B．pardons C．respects D．warnsⅢ. 语法填空12、短文填空Other fail little it surprised they possible back serve be call toThousands of people 1．attracted(吸引) to a 2-meter-wide lane in Tongcheng, Anhui province this spring festival. Although it was 2．to count the exact number, at3．5,000 people visited it each day.This narrow lane4．Liuchi Lane in Chinese, won greater popularity after the story behind it was broadcast（播放）on a CCTV show. At first glance it may seem unimportant, but to those who know5．history，Liuchi Lane means much more than its appearance. In the early Qing Dynasty, it 6．as the boundary(边界) between Zhang family and Wu family. They quarreled（争论）fiercely over which family had the right to build a wall on the dividing line. After 7．to make acompromise（妥协）, the Zhangs turned to Zhang Ying, a family member of Zhangs and also a top official in the emperor’s court. To their8．, Zhang Ying did not provide the support they needed. He called for his family to move back 1 meter from the boundary. Seeing that, the Wus agreed to move 9．another meter, thus Liuchi Lane was born.In reality, the story of Liuchi Lane is not only about how to get along with10．, but also a guideline for all the officials in ChinaⅣ. 阅读理解A13、Since 2005, office workers in Japan have been allowed to wear T-shirts and shorts to work, instead ofbusiness suits and ties. Why? The answer is simple. The government is trying to reduce the use of air conditioners.Although air conditioners make our lives easier in hot weather, they can be bad for the environment. The coolers use a great deal of electricity to function and add to the effects of global warming.But it is a vicious (恶性的) cycle. As temperatures rise, there will be more need for air conditioning.Pawel Wargocki, an expert at the Technical University of Denmark, told The New York Times: “The air conditioning causes a huge problem to global climate and energy use.” He added, “More and more air conditioners are used. It’s very dangerous.”We can’t live with air conditioning. But the thing is, we can’t live without it either. Scientific studies have shown that if indoor temperatures are high in hot weather, people will suffer from certain health problems and have a lower productivity.For example, when air conditioners were turned down in Japanese offices, the room temperature rose to 3 or higher. As a result, workers started getting headaches, and feeling sleepy.They couldn’t give all their attention to work and their productivity dropped by 2 percent, which means they did 30 minutes less work each day, according to Shinichi Tanabe, a professor of architecture at Waseda University in Tokyo, Japan.So the best way to balance our comfort with environmental awareness is to change our expectations. Most of the time, it’s not that the room is too hot, but that we are used to it being cooler.“The temperature many Americans find most comfortable indoors in summer—21C— feels uncomfortable to most Europeans, who find it too cold.” said Michael Sivak, professor at a University of Michigan, US. He said it is because Europeans care more about the environment and are willing to accept a bit more heat in summer.Also, we can try to change our daily behavior. Open the windows to let air in, for example. Turning on the air conditioner is not the only way to make us feel comfortable.1．What did the Japanese government do to reduce the use of air conditioners?A．To allow the workers to wear T-shirts to work.B．To stop the workers from using air conditioners.C．To let people accept a bit more heat in summer.D．To ask people to open windows to let air in.2．The writer probably agrees that ______.A．most people will be sick without air conditionersB．global warming is mainly caused by air conditionersC．people have to be used to living without air conditionersD．we should change our expectations to protect environment3．We can learn from the passage that ______.A．Japanese office workers are less productive in summerB．Americans care less about environment than EuropeansC．People in Denmark believe air conditioners are dangerousD．Europeans accept a bit cooler than Americans in summer4．Which of the following would be the best title for the passage?A．Protect Environment: Is it time to change business suits?B．Protect Environment: Is it time to focus on temperature?C．Protect Environment: Shall we change our expectations?D．Protect Environment: Shall we stop using air conditioners?B14、A sign is another kind of language. Here are some of them that you can see on the roads.Number One is a sign with the number forty on it. When driver see this sign, they must not go at more than forty kilometers one hour. We see this sign when we are getting near a town. Number Two is a sign that we’re near a crossing. We must drive carefully. Number Three is a sign that there is a bend (弯道) on the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number Four is a sign that there is another road coming infrom the right. There is a junction(交叉点) at this place.Number Five is a sign that there is a dangerous mountain road and Number Six is a sign that the road gets narrow. Drivers must go slowly and carefully when they see these signs. Number Seven is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number Eight is a sign with a letter “P”on it. The letter “P” means “Parking”. At some places, there are signs “NO PARKING” or “NO WAITING”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.1．. At the place where you see Sign 1, ________.A．you are already out of the townB．you still have forty kilometers to goC．there must be a town forty kilometers awayD．there must be many houses and buildings not far away2．There stands Sign 2 near a place where ________.A．two roads cross B．the road gets narrowC．there are no traffic lights D．people can cross the road3．You have to drive not only slowly but also carefully when you find ________ according to the passage.A．either of signs 2 and 3 B．all of signs 3, 5, 6 and 7C．each of the eight signs D．any of signs 3, 6, 7 and 84．A driver can leave his car ________.A．near Sign 8 at any timeB．near a sign with “NO PARKING” on itC．near Sign 3 in the daytimeD．near a sign with “NO WAITING” if there’re no police there5．People put these signs on the roads to ________.A．show drivers the way B．stop cars going too fastC．make driving even safer D．learn another kind of languageC15、1．How much money can a tour guide get for working eight hours a day?A．$24. B．$48. C．$72. D．$96.2．If you find Lizzie the cat, you should ______.A．call 555-3826 B．call 555-4863C．********************D．keep it as your own pet3．According to the information above, which of the following is TRUE?A．A tour guide doesn’t have to speak English.B．Andrew can help you find a house with a yard.C．A single girl can rent a room for$35 a month.D．The owner will give you a large pet if you find Lizzie.D16、All the time you spent memorizing multiplication tables（乘法表）may have made you a better mathematician, according to a new study．A team of scientists from Stanford University, in California, have shown how the brain reorganizes itself as kids learn math．After a certain amount of time spent practicing math, kids can put away the calculator（计算器）．They don’t even need to count on their fingers．They simply know the answers to subtraction(−), addition (+), and multiplication (×) facts．The quicker kids can recall basic math facts, the easier it is for them to solve more difficult math problems．The Stanford University researchers observed（观察）the brain activity of 28 students, ages 7 to 4, for the study．They took scans of the students’ brains as the students solved math calculations without the help of a calculator, pen or paper．A calculation—three plus four equals seven, for example—flashed on a screen．The students pushed a button to say if the answer was right or wrong．The scientists also recorded the response speed, and what parts of the brain became active as the kids pushed the button．These observations showed a process called_______．Rather than using their fingers to count, or scrawling outequations（列算式）on a piece of paper, the students pulled the answers from memory．It’s as if the answers to basic subtraction, addition, and multiplication problems are kept in a long-term storage part in the brain．The storage part was built from repetition．“Experience really does matter,” said Dr．Kathy Mann Koepeke of the National Institutes of Health．Children make the changefrom counting to fact retrieval when they are 8 to 4 years old, the study says．This is the time when most students are learning basic addition and subtraction．When kids have basic math facts memorized, the brain has more free space to learn more difficult math．This process has benefits for the future．The study showed, as kids got older, their answers relied more on memory and became quicker and more correct．Less brain activity was involved in counting．Some children make this change quicker than others．Scientists hope to use this research to develop new strategies（策略）to help kids learn math at all levels．One strategy the study suggests is for students to test themselves in different orders—solving five times three before five times two, for example．Mixing up the order keeps the brain active．Keep these trainings up, and you may be a math whiz in no time．1．In the study, kids put away calculators because they can ______．A．use calculators wellB．scrawl out equationsC．recalling basic math factsD．count on their fingers2．The process of “fact retrieval”in Paragraph 4probably means ______．A．picking out results by working together with their partnersB．finding out answers based on practicing carefully and patientlyC．trying out ways of dealing with problems by attending trainingD．working out problems according to what they have remembered3．What can we know from the study?A．Kids need to practice using calculators to keep their brains active．B．Math learners should change to counting practice at the age of 8 to 4．C．Training by mixing up the order of multiplication tables can help learn math better．D．Less brain activity may be involved in solving difficult problems when kids get older．5．What is the best title of the passage?A．Math from MemoryB．Strategy DevelopmentC．Brain ReorganizationD．Training by RepetitionE17、Learning vocabulary doesn’t have to be boringMany students have problems with vocabulary when preparing for tests like the SATs. Last week, TEENS offered advice on how to memorize new words. If you’re now familiar with those methods, w hy not try moving on to the next stage by using the following tips to build up your English vocabulary.Repeated encounters (反复遇见)The usual way of “memorizing” new material is through repeating it while it’s still in your mind. However, simply repeating a word seems to have little long-term effect.But one kind of repetition is effective: repetition of encounters with a word. Words stand a good chance of being remembered if they’ve been met at least seven times in your reading, at intervals (相隔一段时间). So, read English magazines, newspapers, and websites regularly.Spacing and reviewIt’s better to distribute (分配) memory work over a period of time rather than do it in a single session (一段时间). This is known as the “principle of distributed practice”, where new vocabulary introduced in one lesson is reviewed in the next, and then in later lessons.Use it or lose itPutting words to use in interesting ways helps add them to your long-term memory. In a study of vocabulary learning, students who made up their own sentences with new words and read them aloud remembered them better thanthose who learned the words separately and silently. Best of all, students were given the task of silently imagining a picture in their minds to go with a new word. So it might help if learners link words with a mental image.Mix it upLet’s face it —learning words can be really boring, but it doesn’t have to be. Thanks to the Internet, there are more interesting ways to get the job done. Try watching videos from English-speaking social media celebrities and copying the way they speak. You could even upload your own videos and try becoming a star yourself.1．According to the passage, a good way of memorizing new words is ________.A．simply repeating themB．learning the words silentlyC．reviewing them in one lessonD．reading English magazines regularly2．To make learning words more interesting, we can ________.A．try to become a famous starB．read new words on websitesC．make and upload our own English videosD．draw a picture on the paper with a new word3．What does the passage mainly talk about?A．Where to use new words. B．How to memorize new words.C．When to learn new words. D．What to write with new words.F18、Would you completely trust your friends if you couldn’t see anything? I f you are falling, do you believe they will catch you and help you stand up? Our teacher helped us to find the answer.Our teacher is named Morrie. One day, he said that he had a game for us to try. He divided us into two groups. One of the students from the first group, stands in front of us with his eyes closed, and then falls backwards(向后). The second group stand behind him. Before he falls on the floor, they should catch him and not let him get hurt. Most of us were uncomfortable with this. We were afra id that they wouldn’t catch us and we would hit the floor. So we didn’t move. We just stood there and laughed in embarrassment(尴尬).Finally, one student, thin, quiet, dark-haired girl called Sarah, decided to move. She crossed her arms in front of her body, closed her eyes, and slowly fell backwards. She looked quiet but brave.For a moment, I was sure she was going to fall on the floor. But before she hit the floor, the other students caught her, held her and finally helped her stand up.“Whoa!!” we were a ll surprised, and also encouraged. The girl was happy, too. Seeing this, Morrie smiled and said to the girl, “When you close your eyes, you can’t see anything. You won’t feel safe. When you are falling, the feeling gets stronger. You are not sure whether you will hit the cold, hard floor or the warm, soft hands of your friends. But if you are brave enough to trust them, they won’t let you down.”1．According to the passage, we can know Morrie is ___________.A．a student B．a teacher C．a manager D．a farmer2．The writer thought the girl was ___________.A．strong but shy B．active C．quiet but brave D．careless3．In the end, the girl ___________.A．got hurtB．fell on the floorC．was only helped by the writerD．was caught by the other students4．The students felt encouraged because ___________.A．they could stop the game finallyB．they wanted to do something elseC．they thought they had won the gameD．they felt that they could trust each otherⅤ.书面表达19、“没有规矩，不成方圆。
部编版语文九年级上学期期末专项复习：常识试卷(含答案)
部编版语文九年级上学期期末专项复习-常识学校:___________姓名：___________班级：___________考号：___________考试范围：九年级上、下册1．下列文学文化常识表述有误的一项是（）A．中国“酒”文化中，“觥”是酒杯，“筹”是酒筹，宴会上行令或游戏时饮酒计数的筹码。
B．“射者中，弈者胜。
”其中的“射”指射箭，与“六艺”中的“射”含义相同。
C．《醉翁亭记》的作者是北宋文学家、“唐宋八大家”之一的欧阳修，文章表达了作者“与民同乐”的政治理想。
D．《范文正公集》《柳河东集》《李太白全集》，这几部作品集的命名方式分别是谥号式、籍贯式、表字式。
2．下列文学、文化常识表述有误的一项是（）A．《沁园春·雪》中，“沁园春”是词牌名，“雪”是题目。
B．“风骚”，原指《楚辞》里的《国风》和《诗经》里的《离骚》。
C．《沁园春·雪》中的“唐宗”指唐太宗李世民，“宋祖”指宋太祖赵匡胤。
D．汉朝时匈奴单于自称为“天之骄子”，后来称历史上某些强盛的北方少数民族君主为“天骄”。
3．下列文学、文化常识的表述不正确的一项是（）A．艾青是“土地的歌者”“土地”象征生他养他而又多灾多难的祖国，对“土地”的热爱，是艾青作品咏唱不尽的主题。
B．《岳阳楼记》《醉翁亭记》两篇文章名为“记”，却不拘泥于传统“记”文记事为主的规范，多用骈偶句，融入了更多的议论、抒情成分。
C．鲁迅《中国人失掉自信力了吗》是一篇驳论文，先用驳论据的方法直接批驳，又用正面立论的方法间接批驳，从而彻底驳倒对方谬论。
D．古时住宅旁常栽桑树、梓树，后人就用桑梓指家乡。
《范进中举》中张乡绅称与范进“同在桑梓”的意思是说与范进是同乡人。
4．下列关于文学文化常识的表述有误的一项是（）A．莫泊桑，法国作家，被誉为“短篇小说巨匠”，代表作有《项链》《羊脂球》《我的叔叔于勒》等。
B．《三国演义》是我国第一部章回体长篇历史演义小说，该书着重叙述了魏、蜀、吴三国的兴衰过程。
初中九年级物理(上册)期末复习卷及答案
初中九年级物理(上册)期末复习卷及答案(时间: 60分钟分数: 100分)班级: 姓名: 分数:一、选择题（每题2分, 共30分）1、如图所示电路, 电源电压不变, 闭合开关, 当滑动变阻器的滑片P向右移动的过程中, 下列说法正确的是（）A. 电流表的示数变小B. 电压表的示数变小C. 小灯泡的亮度变暗D. 电压表的示数不变2、如图所示, 王爷爷推着失去动力的汽车在平直道路上匀速前进, 下列说法中正确的是（）A. 汽车对地面的压力与地面对汽车的支持力是一对平衡力B. 汽车所受的推力与地面对汽车的摩擦力是一对平衡力C. 汽车所受的重力与汽车对地面的压力是一对相互作用力D. 汽车对王爷爷的推力与地面对王爷爷的摩擦力是一对相互作用力3.炎炎夏日, 烈日下海滩的沙子热得烫脚, 而海水很清凉, 傍晚落日后, 沙子凉了, 海水却依然暖暖的, 这主要是因为海水和沙子具有不同的（）A. 密度B. 内能C. 热量D. 比热容4.甲、乙两个小灯泡上分别标有“6V 3W”和“4V 2W”字样, 现在把它们按不同方式接在不同电路中（不考虑灯丝电阻的变化）, 下列判断错误的是（）A. 若把它们并联在4V电路中, 乙灯正常发光B. 若把它们并联在4V电路中, 甲灯比乙灯亮C. 若把它们串联在10V电路中, 两灯都可以正常发光D. 若把它们串联在10V电路中, 甲灯比乙灯亮5.人们常用“生沉熟浮”来判断饺子是否煮熟, 煮熟后的饺子会漂起来的原因是（）A. 饺子的重力减小了B. 饺子的重力和浮力都增大了C．饺子的重力不变, 浮力增大 D．饺子的重力和浮力都减小了6.下列措施中属于在传播途中控制噪声的是（）A. 在摩托车发动机上安装消声器B. 在高速公路两侧安装隔音幕墙C. 在学校附近安装喇叭禁鸣标志D. 机场的地勤佩戴有耳罩的头盔7、甲、乙两物体从同一地点同时向相同方向做直线运动, 其s-t图像如图所示, 由图像可知（）A. 两物体在0~10s内都做匀速运动, 且B. 两物体在15~20s内都做匀速运动, 且C. 两物体在15 s相遇, 且0~15s内通过的路程相等D. 两物体在20 s相遇, 且0~20s内通过的路程相等8、如图所示, 将小车放在水平桌面上, 用轻绳跨过定滑轮与钩码相连, 在轻绳的拉力作用下沿桌面做匀速运动．若突然剪断轻绳, 则小车（）A. 将运动得越来越慢B. 将立即停止运动C. 将继续向前匀速运动D. 受到的摩擦力将越来越大9、生活中能量转化的实例很多, 下列描述中正确的是（）A. 摩擦生热是把内能转化为机械能B. 燃料燃烧放热是把内能转化为化学能C. 电动机带动水泵把水送到高处是把电能转化为机械能D. 摩擦起电是把电能转化为机械能10、在如图所示电路, 电源电压保持不变, 电路出现了一处故障, 故障可能发生在R1、R2处．开关闭合前后, 三个电表示数都没有变化, 则电路中的故障是（）A. R1短路B. R1断路C. R2短路D. R2断路11、如图题图所示, 向两支同样的试管中注入质量相等的甲、乙两种液体, 发现液面在同一水平线上, 比较甲、乙两种液体对试管底部的压强（）A. 甲大B. 乙大C. 一样大D. 无法确定12.生活中的许多现象都与我们学过的物理知识有关,下列说法正确的是（）A．尘土飞扬, 说明分子在不停地做无规则运动B. 钻木取火,利用做功来改变物体的内能C. 人工湖能调节气温, 利用水的比热容小D. 夏天吃冰糕, 看到冰糕周围冒“白气”是汽化现象13、一定质量的物体在水平拉力的作用下沿水平面运动, 物体运动的图像如图所示。
江苏省无锡市西漳中学2023-2024学年九年级英语第一学期期末复习检测试题含解析
江苏省无锡市西漳中学2023-2024学年九年级英语第一学期期末复习检测试题注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
Ⅰ. 单项选择1、---I’m afraid I have to give up my dream of being a dancer.---_______. No dream is too big and no dreamer is too small.A．Don’t lose heart B．Don’t mention itC．Y ou must be joking D．That’s OK2、– Did you watch the NBA game last night? - Yes. _________ amazing the game was!A．What an B．How an C．What D．How3、By the time I locked the door, I realized I ________ my keys at home.A．had repaired B．had changedC．had forgotten D．had left4、— Henry cheated (作弊)in the Maths exam.—I know. Now he has been aware of his mistake.A．has found B．has realized C．has corrected5、.It heavily when I went home from the supermarket.A．was raining B．will raining C．is raining D．rains6、We visited Jokhang Temple and PotalaPalace, and also saw many ____ people and some other places of______ . A．interested; interested B．interested; interest C．interesting; interested D．interesting; interest7、---What _______fine weather it is!---Yes. Why not play_________ guitar in the garden?A．a; the B．an; a C．\; the D．\; an8、— There is a lot of wind in North China.— Well, more trees ________ every year to stop the wind.A．must be planted B．can plantC．should planted D．must been planted9、The boy has a good habit to _____ all the things in right places.A．put away B．put upC．take away D．take up10、While Derrick was in France, he developed a _____ for fine art.A．talent B．taste C．way D．habitⅡ. 完形填空11、Keeping traditions alive is never an easy thing. Chen Zunkai, the owner of Baoyuan Dumpling House, has 1the past 16 years improving one of the most traditional Chinese foods: jiaozi.Her 2 are not the white crescent-shaped (月牙形状的) ones simply filled 3 pork or lamb, but colorful ones using more than 150 kinds of fillings.“ 4 I try to do is to make dumplings have a taste of home,” Chen says. “I hope every customer, Northerners or Southerners, vegetarians (素食者) or non-vegetarians, Chinese people or foreigners can 5 something familiar.”Chinese dumplings are believed 6 more than 2,000 years old. 7 , they are made and eaten by people in North China at some festivals such as the winter solstice (冬至). To 8 the year-end cold, people usually fill dumplings with strongly flavored (有强烈味道的) meat such as pork or lamb.For Chen, her 9 came after she noticed that there were not many choices for those 10 prefer lighter fillings. Most vegetarian dumplings have a filling of only two kinds of ingredients, and not one restaurant in Beijing has more than 10 kinds of vegetarian fillings.“I think I can make it,” Chen says.1．A．wasted B．paid C．spent D．cost2．A．dumplings B．noodles C．cakes D．cookies3．A．by B．from C．of D．with4．A．Which B．Where C．What D．When5．A．smell B．taste C．feel D．touch6．A．to be B．being C．to have D．be7．A．Suddenly B．Luckily C．Traditionally D．Finally8．A．get B．refuse C．enjoy D．fight9．A．plan B．idea C．information D．advice10．A．which B．whom C．who D．/Ⅲ. 语法填空12、Do you know the boy in the picture? He is Kuang Heng. Kuang Heng lived in more than 2,000 1．(year) ago in China. From the picture we can see: at that time, he was in worn clothes, and sitting at 2．wooden table with a pile of books on it. A little weak light came 3．through a small hole in the wall. He was reading carefully.This is the well-known story from the ancient Chinese idiom. Kuang Heng was so poor 4．he couldn't even afford a candle, so he 5．（dig）a hole in the wall to "steal" light from his neighbor's house 6．(read) at night. The moral of the story tells us that we should try 7．(we) best to learn knowledge, but never be discouraged 8．(easy), no matter how difficult the situation may be.Of course, things 9．(be) quite different today, but we should remember that hard work pays off. We should take pains to improve ourselves through learning and get 10．(prepare) for our future.Ⅳ. 阅读理解A13、China is a nation of etiquette(礼仪). Chinese people are among the most hospitable (好客的) people in the world. If foreigners visit a Chinese family, they would be surprised at the warmth that they would receive as guests.When you visit a Chinese family, the host usually makes tea for you. Then he will serve you snacks like biscuits or candies. Someone in the family will also chat with you, never letting you feel lonely.At the same time, other family members will prepare a meal for you. Chinese people treat their guests with a big meal. They always present more food than the guest can eat. On the table, the guests must be the first to eat. Perhaps one of the things that surprises a western guest most is that the Chinese host likes to pick food for visit ors, which won’t happen at western tables. The Chinese family go out of their way to make you feel at home. As you finish eating, the host usually says,” It seems that you didn’t eat much. Please have more.” Although you tell them you are full, they still put more food in your bowl.Being warm and hospitable has long been an important part of Chinese culture and tradition. As Confucius (孔子) said thousands of years ago:To meet friends from afar,How happy we are!1．If foreigners visit a Chinese family, _____.A．they will prepare a mealB．they will be welcome warmlyC．they will get an expensive gift2．As a guest in a Chinese family, you are usually offered_____ by the host.A．fruit and snacks B．coffee and tea C．tea and snacks3．Why does a western visitor feel surprised when the host picks food for him?A．Because he thinks it’s not polite.B．Beca use he thinks it’s not necessary.C．Because it won’t happen in western countries.4．What the Chinese family do for the guests is to_____.A．make them feel at homeB．give them a surpriseC．show their wealth5．What’s the meaning of the words by Confucius at the end of the passage?A．学而时习之，不亦悦乎？B．有朋自远方来，不亦乐乎？C．人不知而不愠，不亦君子乎？B14、No Car Day was first started by 34 cities in France on September 22, 1998. It was started to protect the environment. By now, more than 1,000 cities around the world have had a No Car Day.The first No Car Day in China was in Chengdu in 2001. Other cities including Taipei, Shanghai and Wuhan, also support the day.In Beijing, more and more people are taking part in the activity. It asks drivers to leave their cars at home for one day each month and walk or ride a bike to work. It also calls on Beijingers not to use cars on June 5th (World Environment Day). The slogan for the day is, “If we drive for one less day, we can have one more nice day.”So far, more than 200,000 drivers have shown their support. "We can't control the weather, but we can choose not to drive," said Wu Zhonghua, a car club chairman. Beijing is trying to have 238 blue sky days this year. In the first quarter of 2007, Beijing only had 52 blue sky days. This was 11 days less than the number for the same period last year. Much of the dust(尘土) comes from the desert, but cars cause most of the air pollution. We must do more for No Car Day.1．No Car Day was started _______.A．to save moneyB．to control the weatherC．to make the air cleaner2．The No Car Day activity asks Beijing drivers _______.A．not to work on World Environment DayB．to ride a bike or walk instead of driving to work once a monthC．to leave their cars at home for a week each month3．When is World Environment Day?A．On July 5th.B．On June 5th.C．On September 22nd.4．Which of the following about No Car Day is WRONG?A．It was started in France in September, 1998.B．It is supported by over 1,000 cities around the world.C．It was first started by a car club chairman in Beijing.5．cause most of the air pollution.A．Dust. B．Cars C．BeijingersC15、Dear Ralph,I am a student of Grade Nine. I consider myself a beautiful and friendly girl. Male students say I am easy to get along with, so they are always after me. They call me and send messages from time to time. But I am_____them. I just want to learn as much as I can in this golden time. The problem is that I do not know how to refuse or say "no" to them. After all, they are my friends. What should I do? Please give me some helpful suggestions.AriesDear Aries,Don' t answer any call or message. When you want to study, simply turn off your mobile phone. That way you won't be bothered. When boys call, they will get a power-off (关机) message. After you finish studying, turn the phone back on and reply to people who have sent messages while you were studying. Accept calls only if you feel ready for them. A good friend can understand if you miss his too many calls or text messages, limit the number of people to whom you give your phone number. If you're not sure how well you like someone, first leave just your dormitory (宿舍) phone. Then that person can't bother you all the time. You are right that you need friends, so you shouldn't completely escape from them.I believe you can deal with this problem well and be happy every day.Ralph根据材料内容选择最佳答案，并将其标号填入题前括号内。
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Ⅰ. 单项选择。
（15分）( ) 1. —Let’s go to see the show.—I _____ it. It’s very interesting.A. have seenB. seeC. am seeingD. had seen( ) 2. —It’s very hot, but quite wet today.—_____.A. So it isB. It is soC. So is itD. So it does( ) 3. A tsunami(海啸) _____in some southern Asian countries in December, 2004. _____ homeless people had to stay in the open air.A. has happened; Thousands ofB. happened; Thousands ofC. has happened; About twelve thousand ofD. happened; Twelve thousands( ) 4. —Did you have anyone _____ the trees?—Yes, I had the trees _____.A. to water; waterB. to be watered; wateredC. water; to be wateredD. water; watered( ) 5. As you see, the number of cars on the roads _____ these days.A. keeps risingB. keep risingC. keep to riseD. keeps to rise( ) 6. There are fifty students in our class. _____ of us _____ football.A. Two third; likesB. Two three; likeC. Two thirds; likesD.Two thirds; like( ) 7. —Do you know who _____ the tomb of Emperor Qin and who _____ the mobile phone?—No, but we may ask our teacher.A. discovered; inventedB. was discovered; was inventedC. invented; discoveredD. was invented; was discovered( ) 8. Don’t touch anything in the room _____ the hostess tells you to.A. ifB. thoughC. unlessD. even though( ) 9. —How do you like our city?—I think it’s becoming _____.A. more beautiful and more beautifulB. more and more beautifulC. beautiful and beautifulD. more beautiful and beautiful( ) 10. —We often use hotmail _____ e-mails.—Really? Would you please show me _____?A. to send; how to use itB. sending; what to useC. send; what can I useD. to be sent; why to use( ) 11. The river smells terrible. People must _____ dirty things into it.A. be stopped to throwB. be stopped from throwingC. stop to throwD. stop and throw( ) 12. I don’t know the answer _____ the question.A. toB. ofC. forD. with( ) 13. —Shall we go to see the wonderful movie this afternoon?—____A. You’re great!B. Great!C. Thank you.D. That’s all right.( ) 14. More _____ satellites must be sent up _____ space.A. man-made; intoB. manned-made; inC. man-made; inD. manned-made; into( ) 15. —Have you _____ had dumplings?—No, not _____.A. ever; yetB. ever; everC. yet; yetD. yet; everⅡ. 情景交际。
（5分）从方框中选出适当的句子补全对话，其中有两项是多余的。
A: It’s very late. Are you still on the computer?B: Well, yes. 16A: What kind of e-mails?B: Some are messages from my friends and some are from the relatives.A: Do you have to write them back right away?B: 17 Usually people want a quick reply.A: 18B: I’ve already had 40 people’s addresses in my address book! 19A:Ⅲ. 完形填空。
（10分）Canada is the second largest country in the world. It is over 7 000 kilometers from the21 coast to the east. It 22 six time zones. 23 it is 9 a.m. in Vancouver on the west coast, it is 1:30 p. m in Saint John on the east coast.English and French 24 the two main languages in Canada. About 60 percent of25 population speak French. More 26 70 percent of its population live in cities near the U.S. border(边境).Ottawa is the capital. Every year millions of tourists go there to 27 museums and take part in the cultural(文化的)activities. Toronto is the largest city of the country 28 about 2.5 million people. Montreal is 29 second biggest French-speaking city in the world.The maple(枫树) leaf is the national symbol of Canada. The Canadian flag has a red maple leaf on a red 30 white background.( ) 21. A. west B. east C. south D. north( ) 22. A. is B. had C. has D. have( ) 23. A. Which B. What C. Where D. When( ) 24. A. are B. is C. will be D. has been( ) 25. A. their B. his C. its D. our( ) 26. A. up B. over C. about D. than( ) 27. A. see B. visit C. look D. find( ) 28. A. with B. for C. from D. at( ) 29. A. a B. an C. the D. 不填( ) 30. A. or B. and C. but D. however Sue Glass had a car accident when she was eight. Her father tried to get home 61 the storm came. He drove fast and his car fell into the river when he was turning left. So she 62 driving after that.When she grew up, this was a problem, because she got a 63 in a car company. She sold cars there. Then six years later she met Julian Swayland, a racing driver, and she told him she was 64 of cars. He wanted to help her, so he took her to Brands Hatch, a Grand Prix racing circuit(巡回). He drove her round corners at 100 mph and she 65 it. Then she heard about a special motor racing course. She did the course with five men and she got top marks. It 66 them all. She said, “I think I did well because I listened to everything the 67 said. I needed to because I was so afraid. The men often didn’t listen. The best moment was my first championship race. I didn’t win but I came f orth. I 68 20 men, I love the excitement of motor racing but it’s a dangerous sport and I’m always very frightened. In fact, I stopped doing it one year ago, because I got so 69 before each race. I felt really sick. I’m not going to race again, I’m going to 70 a driving school next year.”61. 62. 63. 64. 65.66. 67. 68. 69. 70.。