2017年常州中考模拟卷(高清扫描版)
2017年江苏省常州市中考模拟优化卷
常州市2017年中考模拟优化卷本试卷分为第工卷(选择题)和第Ⅱ卷(非选择题)两部分,满分100分,考试时间100分钟。
试题来源:金坛区2017年九年级第一次质量调研、金坛区2017年春学期教学情况调研、常州市4月九年级教学情况调研测试、常州市5月九年级教学情况调研测试(一模)、常州市5月九年级教学情况调研测试(二模)、溧阳市2017年中考模拟试卷可能用到的相对原子质量:H-1 C-12 O-16 Mg-24 Ca-40 Fe-56 Zn-65 Ba-137第1卷选择题(共40分)一、选择题(本题包括20小题,每小题只有一个选项符合题意。
每小题2分,共40分)1.纪录片《穹顶之下》再次引起了社会对空气质量的热议。
以下不属于空气污染物的是( )A.可吸入颗粒物B.二氧化氮C.二氧化碳D.二氧化硫2.淀粉是人体需要的糖类物质之一,经消化后在人体细胞内最终代谢为( ) A.葡萄糖B.维生素C.氨基酸D.水和二氧化碳3.下列常见物质的俗名与化学式对应正确的是( )A.火碱—NaOH B.小苏打—Na2CO3C.消石灰—CaO D.碳铵—(NH4)2CO34.下列图示的实验操作中,错误的是( )5.居里夫人首先发现某些原子具有放射性,即原子能自动地放射出一些特定的粒子。
一种元素的原子经过放射变成了另一种元素的原子,据此推断放射出的粒子一定是( )A.电子B.中子C.质子D.原子核6.镍是不锈钢中不可或缺的元素,它在周期表中的信息如图所示,下列有关镍元素的说法不正确的是( )A.原子核电荷数是28B.属于金属元素C.原子核内的质子数是28D.相对原子质量为58. 69 g7.工业制镁的方法为:将含碳酸钙的贝壳制成石灰乳;在海水(含氯化镁)中加入石灰乳,过滤;在氢氧化镁中加入盐酸,结晶;电解熔融氯化镁得到镁。
该方法中的化学反应不包括( )A.化合反应B.置换反应C.分解反应D.复分解反应8.下列材料属于合金的是( )A.玻璃B.合成橡胶C.青铜D.陶瓷9.下列关于“燃烧和灭火”的理解正确的是( )A.油锅着火可立即盖上锅盖灭火B.用扇子扇风熄灭蜡烛是因为隔绝了氧气C.可燃物与氧气接触就可以燃烧D.只有含碳元素的物质才能燃烧《中国诗词大会》节目如一股清流,将中国诗词的优美意境缓缓润泽观众的心田,在优美典雅的诗句中,同样蕴涵着化学的丰富内容,映射着化学的诗意光辉,请回答10~11题。
(完整版)江苏常州市武进区2017中考数学二模
江苏省常州市武进区2017中考数学二模试题注意事项:1.本试卷满分为120分,考试时间为120分钟.2.学生在答题过程中不能使用任何型号的计算器和其它计算工具;若试题计算没有要求取近似值,则计算结果取精确值(保留根号与π).3.请将答案按对应的题号全部填写在答题纸上,在本试卷上答题无效一、选择题(本大题共8小题,每小题2分,共16分.在每小题所给的四个选项中,只有一个是正确的) 1.12-的相反数是A . 2-B . 12C . 2D . 02.要使二次根式3-x 有意义,则x 的取值范围是A .x >3B .x <3C .x ≥-3D .x ≥33.下列图形中,是中心对称图形的是A .平行四边形B .直角三角形C .等边三角形D .角4.抽样调查了某校30位女生所穿鞋子的尺码,数据如下(单位:码)这组数据的中位数和众数分别是 A .35,37B .15,15C .35,35D .15,355.如图,直线a ,b 被直线c 所截,b a ∥,32∠=∠, 若︒=∠354,则∠1等于 A .80° B .70° C .60°D .50°6.下列函数中,图像经过坐标原点的是A .x x y 22-=B .xy 1=C .5-=x yD .12+-=x y7.已知方程01722=+--x x 的较小根为α,下面对α的估算正确的是A .-5<α<-4B .-4<α<-3C .-3<α<-2D .-1<α<08.如图,OM =2,MN =6,A 为射线ON 上的动点,以OA 为一边作内角∠OAB =120°的菱形OABC ,则BM +BN 的最小值为 A .26B . 6OM ABCC .132D .152二、填空题(每小题2分,共20分)9.计算:022)(---= ▲ . 10.截止2016年12月,我市常住人口数为4708000,用科学记数法可表示为 ▲ . 11.分解因式:22882b ab a +-= ▲ .12.如果关于x 的方程052=+-k x x 有两个相等的实数根,那么实数k 的值是 ▲ . 13.有一枚材质均匀的正方体骰子,它的六个面上分别有1点、2点、⋅⋅⋅、6点的标记,掷一次骰子,向上的一面出现的点数是3的倍数的概率是 ▲ . 14.已知扇形的圆心角为120°,半径为6,则扇形的面积是 ▲ . 15.在△ABC 中,已知:∠C =90°,sin A =43,BC =6,则AB 的长是 ▲ . 16.如图,线段AC 与BD 相交于点O ,CD AB ∥,若OA ∶OC =4∶3,ABO △的面积是2,则CDO△的面积等于 ▲ .17.如图,AB 是半径为4的⊙O 的直径,P 是圆上异于A ,B 的任意一点,APB ∠的平分线交⊙O于点C ,连接AC 和BC ,△ABC 的中位线所在的直线与⊙O 相交于点E 、F ,则EF 的长是 ▲ .(第16题) (第17题) (第18题)18.小明和小刚在直线跑道上匀速跑步,他们同起点、同方向跑600米,先到终点的人原地休息.已知小明先出发2秒.在跑步过程中,两人之间的距离y (米)与小刚出发的时间t (秒)之间的关系如图所示,则当t =50秒时,y = ▲ 米. 三、解答题(共10小题,共84分)19.(6分)先化简,再求值:)(n m n n m ++-2)(2,其中2=m ,3=n .20.(8分)解方程和不等式组:by /米ODCBA⑴ 222-=-x x x⑵ ⎪⎩⎪⎨⎧>+≥-.3612x x x x ,21.(本小题满分8分)某校对学生课外数阅读状况进行了一次问卷调查,并根据调查结果绘制了中学生每学期阅读课外书籍数量的统计图(不完整).设x 表示阅读书籍的数量(x 为正整数,单位:本),其中A :1≤x ≤2;B :3≤x ≤4;C :5≤x ≤6;D :x ≥7.请你根据两幅图提供的信息解答下列问题: ⑴ 本次共调查了多少名学生?⑵ 补全条形统计图,并判断中位数在哪一组; ⑶ 计算扇形统计图中扇形D 的圆心角的度数.22.(本小题满分8分)某校举办篮球比赛,进入决赛的队伍有A 、B 、C 、D 四队,要从中选出两队打一场比赛.⑴ 若已确定A 打第一场,再从其余三队中随机选取一队,求恰好选中D 队的概率; ⑵ 请用画树状图或列表法,求恰好选中B 、C 两队进行比赛的概率.BCDA19 %23.(本小题满分8分)已知:如图,在△ABC 中,AD ⊥BC ,垂足是D ,E 是线段AD 上的点,且AD =BD ,DE =DC . ⑴ 求证:∠BED =∠C ;⑵ 若AC =13,DC =5,求AE 的长.24.(本小题满分8分)某市建设地铁2号线,有一项工程原计划由甲工程队独立完成需要20天.在甲工程队施工4天后,为了加快工程进度,又调来乙工程队与甲工程队共同施工,结果比原计划提前10天完成任务.求:⑴ 乙工程队独立完成这项工程需要的时间; ⑵ 甲、乙两工程队分别完成这项工程工作量的比.25.(本小题满分8分)如图,正方形ABCD 的对角线相交于点O ,以AD 为边向外作Rt △ADE ,∠AED =90°,连接OE .⑴ 将△AOE 绕点O 顺时针旋转90°,得△A'OE'.①画出△A'OE';②判断点E'是否在直线ED 上,并说明理由; ⑵ 若DE =4,OE =23,求AE 的长.ABCEOA BCED26.(本小题满分10分)⑴ 阅读理解我们知道,平面内互相垂直且有公共原点的两条数轴构成平面直角坐标系.如果两条数轴不垂直,而是相交成任意的角ω(0°<ω<180°且ω≠90°),那么这两条数轴构成的是平面斜坐标系.如图1,经过平面内一点P 作坐标轴的平行线PM 和PN 交 x 轴和y 轴于M 、N ,点M 、N 在x 轴和y 轴上所对应的数分别叫做P 点的x 坐标和y 坐标.如图2,ω=30°,直角三角形的顶点A 在坐标原点O ,点B 、C 分别在x 轴和y 轴上,AB =3,则点B 、C 在此斜坐标系内的坐标分别为B ▲ ,C ▲ .⑵ 尝试应用如图3,ω=45°,O 为坐标原点,边长为1的正方形OABC 一边OA 在x 轴上,设点()y x G ,在经过A 、C 两点的直线上,求y 与x 之间满足的关系式.⑶ 深入探究如图4,ω=60°,O 为坐标原点,M (2,2),圆M 的半径为23.有一个内角为60°的菱形,菱形的一边在x 轴上,另有两边所在直线恰好与圆M 相切,求此菱形的边长.(图1)(图2)xyO(图4)27.(本小题满分10分)已知,正方形ABCD 的边长为6,菱形EFGH 的三个顶点E G H ,,分别在正方形ABCD 边AB CD DA ,,上,2AH =. ⑴ 写出菱形EFGH 的边长的最小值; ⑵ 请你探究点F到直线CD 的距离为定值; ⑶ 连接FC ,设x DG =,△FCG 的面积为y ; ① 求y 与x 之间的函数关系式并求出y 的取值范围; ② 当x 的长为何值时,点F 恰好在正方形ABCD 的边上.28.(本小题满分10分)设二次函数2(1)()y x x a a=-+-(a 为正常数)的图象与x 轴交于A 、B 两点(A 在B 的左侧),与y 轴交于C 点.直线l 过M (0,m )(02m <<且1≠m )且与x 轴平行,并与直线AC 、BC 分别相交于点D 、E .二次函数2(1)()y x x a a=-+-的图象关于直线l 的对称图象与y 轴交于点P .设直线PD 与x 轴交点为Q ,则: ⑴ 求A 、C 两点的坐标;⑵ 求AD 的值(用含m 的代数式表示);⑶ 是否存在实数m ,使CD AQ PQ DE ⋅=⋅?若能,则求出相应的m 的值;若不能,请说明理由.AHD GEB CF九年级教学情况调研测试数学参考答案及评分意见一.选择题(本题有8小题,每小题2分,共16分)题 号 12345678答 案 B D A C B A B C评分标准选对一题给2分,不选,多选,错选均不给分二.填空题 (每小题2分,共20分)9.1 10.610708.4⨯ 11.222)(b a - 12.425 13.3114.π12 15.8 16.8917.34 18. 92 三、解答题(共84分) 19.化简求值:⑴ 原式=222222-n mn n mn m +++ ---------------------------------- 2分 =223n m + ------------------------------------------------ 4分 当m =2,3=n 时上式=3322⨯+ ---------------------------------------------------- 5分=13 ------------------------------------------------------------- 6分20.⑴ 解方程: 222-=-x x x解: 0)2()2(=---x x x ---------------------------------------- 1分0)1)(2(=--x x ---------------------------------------- 2分1,221==x x . -------------------------------------- 4分⑵ 解不等式组:⎪⎩⎪⎨⎧>+≥-x x xx 3612解: 解不等式①得: 1≥x ---------------------------------------- 1分解不等式②得: 3<x --------------------------------------- 2分 ∴ 原不等式组的解集是1≤x <3. ------------------------------ 4分21.⑴ 本次调查了=%1938200名学生. --------------------------------------- 2分 ⑵ D 高40 ------------------------------------------------------------- 4分 中位数在B 组 ------------------------------------------------------- 6分 ⑶ 圆心角度数为οο7236020040=⨯. ----------------------------------- 8分 22.解:⑴ 所有等可能的结果共有3种, 恰好选中D 队的结果有1种,其概率P =31 --------------------------------------------------- 2分 ⑵ 列表或画树状图 ------------------------------------------------- 5分 所有等可能的结果共有12种, 恰好选中B 、C 两队进行比赛的结果有2种,其概率P (B 、C 两队进行比赛)=61. -------------------------------------- 8分 23.证明:∵ AD ⊥BC, ∴ ∠BDE =∠ADC =90°. ------------------------------ 1分 ∵AD =BD ,DE =DC,∴ ∠BED =∠C. -------------------------------------------------- 4分∵ ∠ADC =90°,AC =13,DC =5, ∴AD =12 ------------------------- 5分 ∵ △BDE ≌△ADC, DE =DC =5 -------------------------------------- 6分∴ AE =AD -DE =12-5=7 ----------------------------------------- 8分24.⑴ 设乙工程队独立完成这项工程需要的x 天,则 1)10420()1201(204=--⨯++x-------------------------------------- 3分 解得x =12. -------------------------------------------------------- 5分经检验x =12是分式方程的解,所以乙工程队独立完成这项工程需12天. --- 6分 ⑵ 甲工作量=2010=21,乙工作量=126=21. ------------------------------ 7分 ∴甲工作量:乙工作量=1:1. ----------------------------------------- 8分25.⑴ ①画出ΔA'OE' 2分②点E'在直线ED 上,(可证∠ODE+∠ODE=180°) ----------------------- 4分 ⑵ ∵OE= OE'=23, ∠EOE' =90°, ∴EE'=6 ------------------------------- 6分 ∴DE'= EE'-ED =6-4=2 ----------------------------------------- 7分 ∴AE =DE'=2 ----------------------------------------------------- 8分26.⑴ )2,0(),0,3(A B ---------------------------------------------------- 2分⑵ )2,1(-C --------------------------------------------------------- 3分 2222+-=x y -------------------------------------------------- 4分 ⑶ 边长为1或2或3(每个解的过程和结果各1分) ------------------------ 10分27.解:⑴ 4. ---------------------------------------------------------- 2分⑵ 点F 到直线CD 的距离始终为定值2. ----------------------------- 5分 ⑶ ① x y -=6, ----------------------------------------------- 7分 6626≤≤-y ----------------------------------------- 8分 ② 2=x ------------------------------------------------ 10分 28.解:⑴ 点C 的坐标为(0,2).点A 坐标为(-1,0). -------------------- 2分 ⑵ AD=m 25. --------------------------------------------------- 5分 ⑶ 要使DE PQ AQ CD ⋅=⋅,由于∠PQA=∠PDE ,所以只须PQA ∆∽CDE ∆,即须PQA ∆∽PDE ∆.○1 当0 <m<1时,点P 在x 轴下方,此时∠PQA 显然为钝角,而∠PDE 显然为锐角,故此时不能有PQA ∆∽CDE ∆. ---------- 6分 ○2 当1<m<2时, a a m 1+=,而此时1<m<2, 则应有211<+<a a ,由此知a >1. --------------------------- 9分 综上所述,当a >1时,才存在实数m 使得PQA ∆∽CDE ∆,从而有DE PQ AQ CD ⋅=⋅,此时a a m 1+=;当0<≤a 1时,不存在实数m 使得DE PQ AQ CD ⋅=⋅. ---------------------- 10分。
2017年常州市中考语文模拟试卷及解析
2017年常州市中考语文模拟试卷及解析学生在中考语文的备考中会不知道该如何有效复习,学生要多做中考语文模拟试题,多加复习才可以拿到好成绩,以下是小编提供的2017年常州市中考语文模拟试题及解析,考生可以针对以下试题多进行练习。
2017年常州市中考语文模拟试题一、基础知识积累与运用(30分)1、下列词语中加点字的注音全对的一组是( )(3分)A诅咒(zǔ) 佝偻(góu) 扶掖 (yè) 灵柩(jiù)B骈进(pián) 喑哑(yīn) 阴晦(huì) 伫立 (chù)C襁褓(qiǎng) 睿智(ruì) 庸碌(lù) 恣睢(suī)D拮据(jù) 妖娆(ráo) 嗤笑(chī) 颓废(tuí)2、下列词语书写完全正确的一项是( )(3分)A、言行相顾断章取义强聒不舍心无旁骛B、神情恍忽荡然无存花团锦簇棱角分明C、铬尽职守自之知明恼羞成怒重蹈覆辙D、一抔黄土涕泗横流怒不可遏歇斯底理下列句子中加点词语运用不恰当的一项是( )(3分)A.人生之路是曲折的,在坎坷面前,谁能勇往直前,谁就能找到人生的***点。
B.“勤学好问”是提高学习成绩的不二法门。
C.上帝在创造世界时,把一切生物分散安置并教会他们传宗接代,繁衍自己的子孙。
D.你客观地分析前因后果,做将来的借鉴,重蹈覆辙,将来一定会取得更大的成就。
4、下列说法有误的一项是( )(3分)A.《沁园春雪》中的“数风流人物,还看今朝”的“今朝”是指今天的人民大众。
B.《敬业与乐业》是一篇演讲稿,文中用了大量的事实论证了乐业比敬业重要的观点。
C、《出师表》的作者是三国时期政治家、军事家诸葛亮,而表是古代向帝王上书陈情言事的一种文体。
D、词又称“长短句”,句式长短不一。
兴盛于宋,当时的苏轼和辛弃疾是豪放词派的代表人物,而李清照可以说是婉约派的代表。
5、下列句子中没有语病的一项是( ) (3分)A. 每个中学生将来都希望自己成为有用人才。
英语_2017年江苏省常州市中考英语一模试卷(含答案)
2017年江苏省常州市中考英语一模试卷一、单项选择(本题共10小题;每小题1分,满分10分)从A、B、C、D四个选项中,选出可以填入空白处的最佳选项.1. From _________ space, you can see 71% of the earth is covered with water. It looks like_________ blue ball.()A /; aB the; aC a; aD /; the2. It is impolite for children to _________ when their parents are talking with others.()A cut downB cut outC cut inD cut short3. ﹣﹣﹣The Internet service fees are too high,and the speed is too slow.一That's why Premier Li Keqiang asks operators(运营商)to provide Internet.()A many cheaper and quickerB very cheaper and quickerC more cheaper and quickerD much cheaper and quicker4. ─ Why is online shopping getting more popular?─ I think it _________ save a lot of time.()A shoudB canC had betterD ought to5. ---What did you do yesterday?---My brother took two friends of _______ to play chess with us.But I don't know________ of them .()A his; allB him; bothC his; eitherD him; neither6. The man couldn't afford a new flat. But to settle his family, he bought a second﹣﹣hand one, _________.()A StillB InsteadC OtherwiseD Anyway7. ─ Did you go to Xue Yan _________ the Peach Blossom Festival (桃花节)?─ Yes, The flowers were beautiful and bees were flying _________ them.()A during, amongB during, betweenC through, amongD through,between8. ﹣How do you spend the coming May Day holiday?﹣I haven't decided.I wonder________during the holiday.()A where am I going to spendB whether it was going to be sunnyC who will I inviteto have a trip with me D if my mother will give me extra homework9. ─ The documentary Ae rial China is quite popular around China recently. How do youfind it?─ ________.()A It's on TVB Pretty goodC We enjoy it togetherD All right10. ﹣Why didn't Sally play the violin at the concert last night?﹣She said that her hand hurt,but that was only a(n) ________.I saw her play tennis just now.()A matterB excuseC resultD expression二、完形填空(本题共1小题;每小题10分,满分10分)阅读下面短文,掌握其大意,然后从每小题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项.11. 13﹣ year﹣old Jim had been asking his parents for an Iphone all year. So on Christmas morning he was very (1)_______to find one under the tree. But he had to agree to his mother's conditions (2)_______the phone could be his. His mother wrote a message for him on a card: "Merry Christmas! You are now the proud owner of an iphone. But if you want this present, you have to follow my rules."The first rule on his mother's list: "I bought this phone, so it is mine. Now, I am (3)_______it to you. Aren't I the greatest? "Then it read, "Remember: breaking any of the rules will (4)_______the end of your iphone ownership.""If it rings, (5)_______it, " said rule number three. "It is a phone. Do not ever ignore (忽视) a phone call if the screen reads "Mom" or "Dad."Rule number seven: "Do not use phone to (6 )________another person or lie. And don't take part in (6)_______that might hurt others. You are not a rude person; do not let the iphone change that."Rule number nine: Do not text or email anything to someone through this phone that you would not say in person. And do not text or email anything to someone that you would not say out loud (7)_______your parents in the room.""Don't take lots of pictures. There is no need to record (8)_______. Keep your eyes up. See what's (9)_______around you. Listen to the birds. Talk to a atranger. The experiences will be (10)_______in your memory forever, " read rule number seventeen.At last, it read, "Most of these rules listed here do not just apply to (适用于) the iphone, but to (11)_______. I love you. I hope you will enjoy your new iphone."(1)A excitedB worriedC luckyD interested(2)A sinceB asC beforeD after(3)A explainingB lendingC returningD describing(4)A come fromB lead toC make upD care for(5)A answerB stopC protectD refuse(6)A callB textC emailD fool(7)A experimentsB experiencesC conversationsD expressions(8)A exceptB withoutC because ofD with(9)A nothingB everythingC somethingD anything(10)A movingB leavingC happeningD increasing(11)A usedB storedC hiddenD raised(12)A childrenB parentsC lifeD health三、阅读理解(本题共4小题;每小题8分,满分28分)阅读下列短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项.12.Do you find it diffcult to rent (租用) a house in Potsdam? Would you like to buy a house here? The following information may help you.Note: apartment 公寓房; semester 学期; garbage 垃圾; available 可用的;rate 价格,比率(1)What can we learn about Evergreen Park?________A People can rent a studio there.B People can park for free there.C People can visit it only on Saturdays.D Pets can play and live there freely.(2)Who might rent the second apartment?________A People who have a pet.B Students at Clarkson University.C People who want to live in the city center.D People who would like to live at 100Racquette Road.(3)Where can we most probably find this text?________A In a travel book.B In a cultural magazine.C On a house website.D In a geography textbook.13. "My wife got stick. She was continuously nervous because of problems atwork, personal life, her failures and problems with children.She has lost 30pounds and weighed about 90pounds in her 35years. She got very skinny, and was continuously crying. She was not a happy woman. She had suffered from continuing headaches heart pain and jammed nerves (神经堵塞) in her back and ribs. She did not sleep well, falling asleep only in the morning and got tired very quickly during the day. Our relationship was on the edge (边) of breaking up.Her beauty was leaving her somewhere﹣﹣﹣she had bags under her eyes; she was poking her head; she stopped taking care of herself. She refused to shoot any films and refused any roles.I lost hope and thought that we'll get divorced (离婚)soon…But then I decided to act on it.After all, I've got the most beautiful woman on the earth.She is the idol (偶像) of more than half of men and women on the earth, and I was the one allowed to fall asleep next to her and to hug her shoulders.I began to spoil (宠溺) her with flowers, kisses and praises. I surprised her and pleaded her every minute. I gave her lots of gifts and lived just for her. I spoken in public only about her. I presented all themes in her direction. I praised her in front of her own and our friends.You won't believe it, but she blossomed (花开). She became even better than before. She gained weight, was no longer nervous and she loved me even more than ever. ________. And then I realized one thing: The woman is the reflection (反射) of her man. If you love her to point of madness, she will become it."﹣﹣﹣Brad Pitt ( his wife, Angelina Jolie, a winner of an Academy Award, two Screen Actors Guild Awards and three Golden Globe Awards, world﹣famous as Hollywood's highest﹣paid actress)(1)Why was their relationship on the edge of breaking up?________A The wife couldn't deal with her work and children.B The wife lost her weight and was no more beautiful.C The wife couldn't communicate well with her husband.D The wife's whole life was in a complete mess.(2)What does the underline sentence probably mean according to the passage?________ A I didn't know why my wife changed so much. B I didn't understand her love anymore. C I couldn't believe how better she did become. D I didn't find how much she could love me.(3)Which of the following may Brad Pitt agree?________A Famous people's lives are different from common people's.B In the sunshine of love,women can remain beautiful.C Women must depend on themselves.D Stress from work and life may make one fall down forever.14. Facebook (脸谱网) friends cannot replace the real thing, say psychologists (心理学家).People are happier and laugh 50% more when they talk face to face with friends or via web camera than when they use social networking sites, a study has found.Dr. Roberts, a famous lecture at the University of Chester, said such websites don't appear to help make true friendships. Based on two questionnaires(调查表), he found there was no link between Facebook use and people with larger groups of friends.Dr. Roberts, whose work will be presented at the British Psychological Society conference in Harrogate , said, "The bottom line conclusion is that our relationships are not dependent on the quantity of communication. They depend on quality, and even Skype(网络电话) is better at increasing the quality of our communication than time spend on Facebook." Even talking on the phone or texting , does not make people feel as good as sharing a smile, the research says. The studies suggest quality, not quantity, of communication is the most important for keeping friends for life.People find the most satisfying relationships come from a small number of closefriends, with an outer "ring" of 10significant others. With these people, it doesn't matter what type of social media (媒介) you use for communication. But people who want to "contact the world at large" using Facebook can be disappointed because________, claim researchers.In a third study, Dr. Roberts asked people to communicate with friends face to face or via Skype and keep a 14﹣day diary. This was compared with communicating via phone, text messages or social networking sites. People communicating face to face on Skype were 50% more likely (有可能的) to laugh, and they rated themselves as significantly happier.(1)What is the idea of the fourth paragraph?________A Most people contact each other online.B Keeping a friend for life is noteasy. C The quality of communication is important. D Skype is better at understanding us than Facebook.(2)What does the underlined sentence in the fifth paragraph probably suggest (暗示)?________A They are too excited to express themselves.B They limit their social circle to a small range.C They spread their information at a low speed.D They have no information to introduce themselves.(3)Which of the following is TURE according to the passage?________A People communicating online are more likely to be happy.B Strangers are morelikely to talk on Facebook or through Skype. C Talking with your close friends is always exactly satisfying. D People like to share their personal information on Skype.15. It was a freezing day when I found a wallet in the street, in which there was only three dollars and a crumpled(皱的) letter. To find some clues so that I could give it back, I opened the letter. Then I saw the date ﹣﹣﹣ 1924. The letter had been written 60years before.It was a letter written to Michael by Hannah, noting that she could not see him any more because her mother was against it.There was no way, except for the name, Michael, that the owner could be identified(认清). So I called Information, hoping to find a phone listing for the address on the envelope (信封). After many setbacks, I finally got the name of a nursing home where Hannah was living.This whole thing was stupid, I thought to myself. Anyway, I finally stood in front of Hannah who was a kind old woman with a warm smile on her face. The second she saw the envelope, she took a deep breath and said, "Michael! That was to Michael!""I loved him very much. But I was only 16at that time and my mother felt I was too young. Michael Goldstein was a wonderful person, you know." She stopped for a moment, "I never did marry.I think of him often …"I thanked Hannah and said goodbye. As I stood by the door, the guard there asked if the old lady had been able to help me. I told him Hannah had given me a lead. "But I think I'll let it go for a while. I don't know where the owner is." I then took out the wallet. When the guard saw it, he said, "Hey, wait! That's Mr. Goldstein's wallet!""Mr. Goldstein? ""He lives on the 8th floor here. That's Michael Goldstein's wallet for sure. He must have lost it on one of his walks." I ran quickly back to the nurse's office.The nurse guided me to Mr. Goldstein. She asked if he had lost hiswallet. Mr. Goldstein looked up with surprise, put his hand in his back pocket, and said, "Oh, it's missing!"I handed Mr. Goldstein the wallet and said, "I read the letter in the hope of finding out who owned the wallet. I think I know where Hannah is."He suddenly grew pale. "Hannah? You know where she is? How is she? Please, please tell me.""She's fine …" I said softly.The old man smiled and asked, "Could you tell me where she is? " He grabbed my hand and said, "You know something, Mister? I was so in love with that girl that when that letter came, my heart broke. I never married. I guess I've always loved her.""Mr. Goldstein, " I said, "come with me."We went to the third floor, where Hannah was sitting alone, watching television. The nurse walked over to her. "Hannah, " she said softly, pointing to Michael. "Do you know this man? "She adjusted(调整) her glasses, looked for a moment, but didn't say a word. Michael said softly, "Hannah, it's Michael. Do you remember me? "She cried, "Michael! I don't b elieve it…" He walked slowly towards her and they embraced (拥抱).About three weeks later, I got a call. "Can you come on Sunday to attend a wedding? …"It was a beautiful wedding. If you ever wanted to see a newly﹣married couple acting like two teenagers, you had to see this couple.(1)How did the writer find the wallet's owner, Michael?________A He got Michael's address from the worn envelope.B He called Information and got Michael's phone number.C Hannah gave him the exact address where Michael lived.D The guard identified Michael's wallet and gave him information.(2).What can we learn from the passage?________①The letter was written in 1924.②The letter was written to Hannah by Michael.③The letter was put in th e wallet by Michael.④The letter was a letter to say goodbye.⑤Hannah was 76years old when they met again.⑥Hannah and Michael had lived far from each other.⑦They married both for the first time.A ①②③⑤⑦.B ①②④⑤⑥.C ①③④⑤⑦.D ②③④⑥⑦.(3)How is the passage mainly developed?________A By providing examples.B By making comparisons.C By following the order of events.D By following the order of importance.(4)Which of the following would be the best title for this passage?________A The Lost Letter.B Love Regained 60Years Later.C A BeautifulWedding. D A Kind Stranger.四、阅读填空(共1小题;每小题5分,满分5分)阅读下面短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词.每个空格里只填一个单词.16. You are stronger than any difficulties standing in your way, since you have a purpose that cannot be given up. You are smart and hard﹣working. You can expect what will happen and then work to make them real.Here are some life skills that will help you gain achievements.CuriosityCuriosity is the base of lifelong growth. It allows us to stay young in mind even as we grow wiser. Always remain curious and teachable. Keep an open mind and do not stop questioning and learning. You should open new doors, and experience new things. Be curious, and know that the journey begins again every day.CreativityCreativity is the most powerful tool of making progress. The world is moving so fast these days that those who say something can't be done are often proved wrong by those who are doing it. This is exactly why it's important to exercise your creative mind from time to time.PatienceIn the sweetest little voice, Winnie﹣the﹣Pooh once said, "Rivers know this: there isno hurry. We shall get there some day." This is the power of patience.Patience does not mean sitting still. Instead, it means mastering(掌握) one's time by taking the steps, at the right speed, toward the final result, on and on. Standing the time between your departure(出发) and your arrival requires a great deal of willpower(意志力). Patience can be bitter(痛苦的), but the seeds(种子) you plant will bear sweet fruit, and this fruit is worth waiting for.Self﹣independenceSelf﹣independence is the most important one of all life skills, because without it you can't practice the others.Self﹣independence is the willingness to take responsibility(责任) for your life. It means taking control of your life, finding the true you by thinking for yourself, and making afirm choice to live your way.五、词汇(共4小题;每小题1分,满分4分)A)根据句子意思,用括号中所给词的正确形式填空,每空填一词.17. ________ (hope). all the places of interest in Nanjing will be open to local people forfree in the near future.18. The chairs are________ (comfort) to sit on because they are too hard and cold.19. Students should be given changes to experience real﹣life jobs and get an idea ofthe________ (possible) for their futures.20. ﹣Daniel, come and join your brother in cleaning the yard.﹣Why________ (my)? Sam is sitting there doing nothing at all.B)根据句子意思及汉语提示,写出各单词的正确形式,每空填一词.21. Little Alice dropped some paint onto the paper, leaving some colorful________ (污点).22. 根据句意用括号内所给词的适当形式填空.Lian yungang,one of the________(东方的)seaside cities,will play an important role in the Belt and Road Initiatives("一带一路"战略构想).23. My mother is so kind and generous that she is used to________ (提供) her help to people in need.24. Zhang Changning once scored the most points in a game________ (对抗) Thailand women volleyball team.六、动词填空(共5小题;每小题1分,满分5分)用括号内所给动词的适当形式填空.25. ﹣Oh, dear! This is not the way back home.﹣Oh, that's it. Maybe we________ (go) the wrong way at the last turning.26. Who are you going to have________ (fix) your broken bicycle?27. ﹣Listen! How sweet the voice is!﹣Exactly. Who do you suppose________ (sing)?28. Mr Smith________ (repair) the computer which broken down yesterday. Now it looks as good as new.29. ---Where is the morning paper?---Sorry.I________ (get) it for you at once.七、根据所给中文完成句子翻译(共6小题;每小题1.5分,满分9分)30. 她每天花两个半小时练习打排球吗?Does she________?31. 我想知道你父亲多久去北京出差一次.I wonder________.32. 请尽快地把所有的杂志分发给这些学生.Please________!33. 跟你做朋友这么多年我是多么幸运啊!________ for so many years.34. 对那些无家可归的人,我们应该施以援手,而不是仅仅表示同情.We should________ them.35. 老师们对我的画作如此满意我为自己感到骄傲.Teachers________.八、书面表达(共1题,满分15分)危险无处不在,我们学生应该处处注意安全.远离危险.请你根据下面表格所提供的信息,写一篇题为“Safety comes first” 的英语短文.注意:1.内容应包括表格中的所有信息,课适当发挥,但不要逐词翻译;2.文中不得出现真实的人名、校名以及其他的个人信息;3.词数:90词左右(开头和结尾已给出,不计入总词数).Safety comes firstAs a middle student, we should try to stay away from danger as the problem of safety is becoming more and more serious.________.2017年江苏省常州市中考英语一模试卷答案1. A2. C3. D4. B5. C6. B7. A8. D9. B10. B11. ACBBADCDBCBC12. BBC13. DDB14. CBC15. DCCB16. stronger,habit,avoid,forward,yourself17. Hopefully18. uncomfortable19. possibilities20. me21. marks22. eastern23. offering24. against25. went26. to fix27. is singing28. has repaired29. will get30. spend two and a half hours practising playing volleyball every day31. howoftenyourfathergoestoBeijingonbusiness32. hand out all the magazines to the sestudents as soon as possible33. It is so lucky for me to have been friends with you34. give a helping hand to the homeless people instead of taking pity on35. are so satisfied with my paintings that I feel proud of myself36. .。
江苏省常州市2017年中考数学真题试题(含扫描答案)
江苏省常州市2017年中考数学真题试题(含扫描答案)导读:就爱阅读网友为您分享以下“江苏省常州市2017年中考数学真题试题(含扫描答案)”资讯,希望对您有所帮助,感谢您对的支持!常州市2017年初中毕业、升学统一文化考试数学试题一、选择题(本大题共8个小题, 每小题2分, 共16分. 在每小题给出的四个选项中,只有一项是符合题目要求的. )1.-2的相反数是()A .-11 B.C.±2 D.2 222. 下列运算正确的是()A .m m =2m B.(mn )=mn C.m 33()23=m 6 D.m 6÷m 2=m 33. 下图是某个几何体的三视图,则该几何体是()A .圆锥B.三棱柱C.圆柱D.三棱锥x -11+的结果是()x xx +221A .B. C. D.1 x x 24. 计算5. 若3x -3y ,则下列不等式中一定成立的是()A .x +y 0 B.x -y 0 C. x +y 0 D.x -y 06. 如图,已知直线AB 、CD 被直线AE 所截,AB //CD , ∠1=60,∠2的度数是()A .100°B.110° C. 120°D.130°7. 如图,已知矩形ABCD 的顶点A , D 分别落在x 轴、y 轴上,OD =2OA =6, AD :AB =3:1,则点C 的坐标是()A .(2,7) B.(3,7) C. (3,8) D.(4,8)8. 如图,已知ABCD 的四个内角的平分线分别相交于点E 、F 、G 、H ,连接AC ,若EF =2, FG =GC =5,则AC 的长是()A .12 B.13 C..二、填空题(本大题共10小题,每小题2分,满分20分,将答案填在答题纸上)9. 计算:-2+(-2)=___________.10.x 的取值范围是___________.11. 肥泡沫的泡壁厚度大约是0.0007mm ,则数据0.0007用科学计数法表示为__________.12. 分解因式:ax -ay =___________.13. 已知x =1是关于x 的方程ax -2x +3=0的一个根,则a =14. 已知圆锥的底面圆半径是1,母线是3,则圆锥的侧面积是.15. 如图,已知在∆ABC 中,DE 是BC 的垂直平分线,垂足为E ,交AC 于点D ,若AB =6, AC =9,则∆ABD 的周长是.202216. 如图,四边形ABCD 内接于O ,AB 为O 的直径,点C 为弧BD 的中点,若∠DAB =40,则0∠ABC =17. 已知二次函数y =ax 2+bx -3自变量x 的部分取值和对应函数值y 如下表:则在实数范围内能使得y -50成立的x 取值范围是___________.1x (x ≥0)图像上一点,过点A 作x 轴的垂线l , B 是l 上一点(B 在A 2k 上方),在AB 的右侧以AB 为斜边作等腰直角三角形ABC ,反比例函数y =(x 0)的图像过点B , C ,x 18. 如图,已知点A 是一次函数y =若∆OAB 的面积为6,则∆ABC 的面积是____________.三、解答题(本大题共10小题,共84分. 解答应写出文字说明、证明过程或演算步骤. )19. 先化简,再求值:(x +2)(x -2)-x (x -1),其中x =-2.20. 解方程和不等式组:⎧-2x ≤62x -53x -3=-3 ;(2)⎨(1)x -2x -24x +15⎩21. 为了解某校学生的课余兴趣爱好情况,某调查小组设计了“阅读”、“打球”、“书法”和“其他”四个选项,用随机抽样的方法调查了该校部分学生的课余兴趣爱好情况(每个学生必须选一项且只能选一项),并根据调查结果绘制了如下统计图:根据统计图所提供的信息,解答下列问题:(1)本次抽样调查中的样本容量是__________;(2)补全条形统计图;(3)该校共有2000名学生,请根据统计结果估计该校课余兴趣爱好为“打球”的学生人数.22. 一只不透明的袋子中装有4个大小、质地都相同的乒乓球,球面上分别标有数字1、2、3、4.(1)搅匀后从中任意摸出1个球,求摸出的乒乓球球面上数字为1的概率;(2)搅匀后先从中任意摸出1个球(不放回),再从余下的3个球中任意摸出1个球,求2次摸出的乒乓球球面上数字之和为偶数的概率.23. 如图,已知在四边形ABCD 中,点E 在AD 上,∠BCE =∠ACD =90, ∠BAC =∠D ,BC =CE .(1)求证:AC =CD ;(2)若AC =AE ,求∠DEC 的度数. 024.某校计划购买一批篮球和足球,已知购买2个篮球和1个足球共需320元,购买3个篮球和2个足球共需540元.(1)求每个篮球和每个足球的售价;(2)如果学校计划购买这两种球共50个,总费用不超过5500元,那么最多可购买多少个足球?25.如图,已知一次函数y =kx +b 的图像与x 轴交于点A ,与反比例函数y =m (x 0)的图像交于点xB (-2, n ),过点B 作BC ⊥x 轴于点C ,点D (3-3n ,1)是该反比例函数图像上一点.(1)求m 的值;(2)若∠DBC =∠ABC ,求一次函数y =kx +b 的表达式.26. 如图1,在四边形ABCD 中,如果对角线AC 和BD 相交并且相等,那么我们把这样的四边形称为等角线四边形. (1)①在“平行四边形、矩形、菱形”中,___________一定是等角线四边形(填写图形名称);②若M 、N 、P 、Q 分别是等角线四边形ABCD 四边AB 、BC 、CD 、DA 的中点,当对角线AC 、BD 还要满足___________时,四边形MNPQ 是正方形.(2)如图2,已知∆ABC 中,∠ABC =90, AB =4, BC =3,D 为平面内一点.①若四边形ABCD 是等角线四边形,且AD =BD ,则四边形ABCD 的面积是____________;②设点E 是以C 为圆心,1为半径的圆上的动点,若四边形ABED 是等角线四边形,写出四边形ABED 面积的最大值,并说明理由. 027.如图,在平面直角坐标系xOy ,已知二次函数y =-12x +bx 的图像过点A (4,0),顶点为B ,连接2AB 、BO .(1)求二次函数的表达式;(2)若C 是BO 的中点,点Q 在线段AB 上,设点B 关于直线CQ 的对称点为B ‘,当∆OCB ‘为等边三角形时,求BQ 的长度;(3)若点D 在线段BO 上,OD =2DB ,点E 、F 在∆OAB 的边上,且满足∆DOF 与∆DEF 全等,求点E 的坐标. 28. 如图,已知一次函数y =-4x +4的图像是直线l ,设直线l 分别与y 轴、x 轴交于点A 、B . 3(1)求线段AB 的长度;(2)设点M 在射线AB 上,将点M 绕点A 按逆时针方向旋转90°到点N ,以点N 为圆心,NA 的长为半径作N .①当N 与x 轴相切时,求点M 的坐标;②在①的条件下,设直线AN 与x 轴交于点C ,与N 的另一个交点为D ,连接MD 交x 轴于点E ,直线m 过点N 分别与y 轴、直线l 交于点P 、Q ,当∆APQ 与∆CDE 相似时,求点P 的坐标.百度搜索“就爱阅读”,专业资料,生活学习,尽在就爱阅读网,您的在线图书馆。
2017年常州市数学中考模拟试卷
2017年常州市数学中考模拟试卷考生想在中考数学中取得好成绩就要多做中考数学模拟试题,为了帮助考生们掌握,以下是店铺为你整理的2017年常州市数学中考模拟试题,希望能帮到你。
2017年常州市数学中考模拟试题一、选择题1.﹣3的绝对值是( )A.3B.﹣3C.﹣D.2.(x2y)3的结果是( )A.x5y3B.x6yC.3x2yD.x6y33.不等式组的解集是( )A.x≤2B.x>1C.14.,AB和⊙O相切于点B,∠AOB=60°,则∠A的大小为( )A.15°B.30°C.45°D.60°5.一组数据:2,5,4,3,2的中位数是( )A.4B.3.2C.3D.26.,已知点A(﹣8,0),B(2,0),点C在直线y= 上,则使△ABC 是直角三角形的点C的个数为( )A.1B.2C.3D.47.下列运算正确的是( )A.a3+a2=2a5B.(﹣ab2)3=a3b6C.2a(1﹣a)=2a﹣2a2D.(a+b)2=a2+b28.不等式组的解集在数轴上表示正确的是( )9.已知等腰三角形的腰和底的长分别是一元二次方程x2﹣6x+8=0的根,则该三角形的周长为( )A.8B.10C.8或10D.1210.在“我的阅读生活”校园演讲比赛中,有11名学生参加比赛,他们决赛的最终成绩各不相同,其中一名学生想知道自己能否进入前6名,除了要了解自己的成绩外,还要了解这11名学生成绩的( )A.众数B.方差C.平均数D.中位数二、填空题11.,在△ABC中,D、E分别是边AB、AC的中点,BC=8,则DE= .12.十边形的外角和是°.13.计算: =______.14.,在Rt△ABC中,E是斜边AB的中点,若AB=10,则CE= .15.,⊙O的弦AB、CD相交于点E,若CE:BE=2:3,则AE:DE= .16.找出下列各图形中数的规律,依此,a的值为 .17.,直线AB∥CD,CA平分∠BCD,若∠1=50°,则∠2= .18.,直线y= x与双曲线y= 在第一象限的交点为A(2,m),则k= .三、计算题19.计算:(π﹣3)0+|﹣2|﹣÷ +(﹣1)﹣1.四、解答题20.,△ABC、△CDE均为等腰直角三角形,∠ACB=∠DCE=90°,点E在AB上.求证:△CDA≌△CEB.21.A、B两组卡片共5张,A中三张分别写有数字2,4,6,B中两张分别写有3,5,它们除数字外没有任何区别.(1)随机地从A中抽取一张,求抽到数字为2的概率;(2)随机地分别从A、B中各抽取一张,请你用画树状图或列表的方法表示所有等可能的结果.现制定这样一个游戏规则:若所选出的两数之积为3的倍数,则甲获胜;否则乙获胜.请问这样的游戏规则对甲乙双方公平吗?为什么?22.近期,我市中小学广泛开展了“传承中华文化,共筑精神家园”爱国主义读书教育活动,某中学为了解学生最喜爱的活动形式,以“我最喜爱的一种活动”为主题,进行随机抽样调查,收集数据整理后,绘制出以下两幅不完整的统计图表,请根据图中提供的信息,解答下面的问题:最喜爱的一种活动统计表活动形式征文讲故事演讲网上竞答其他人数 60 30 39 a b(1)在这次抽样调查中,一共调查了多少名学生?扇形统计图中“讲故事”部分的圆心角是多少度?(2)如果这所中学共有学生3800名,那么请你估计最喜爱征文活动的学生人数.23.已知反比例函数的图象经过点P(2,﹣3).(1)求该函数的解析式;(2)若将点P沿x轴负方向平移3个单位,再沿y轴方向平移n(n>0)个单位得到点P′,使点P′恰好在该函数的图象上,求n的值和点P沿y轴平移的方向.24.,在四边形ABCD中,AD∥BC,∠A=∠C,点P在边AB上.(1)判断四边形ABCD的形状并加以证明;(2)若AB=AD,以过点P的直线为轴,将四边形ABCD折叠,使点B、C分别落在点B′、C′上,且B′C′经过点D,折痕与四边形的另一交点为Q.①在图2中作出四边形PB′C′Q(保留作图痕迹,不必说明作法和理由);②如果∠C=60°,那么为何值时,B′P⊥AB.25.,某办公楼AB的后面有一建筑物CD,当光线与地面的夹角是22°时,办公楼在建筑物的墙上留下高2米的影子CE,而当光线与地面夹角是45°时,办公楼顶A在地面上的影子F与墙角C有25米的距离(B,F,C在一条直线上).(1)求办公楼AB的高度;(2)若要在A,E之间挂一些彩旗,请你求出A,E之间的距离.(参考数据:sin22°≈ ,cos22° ,tan22° )26.1(注:与图2完全相同),二次函数y= x2+bx+c的图象与x轴交于A(3,0),B(﹣1,0)两点,与y轴交于点C.(1)求该二次函数的解析式;(2)设该抛物线的顶点为D,求△ACD的面积(请在图1中探索);(3)若点P,Q同时从A点出发,都以每秒1个单位长度的速度分别沿AB,AC边运动,其中一点到达端点时,另一点也随之停止运动,当P,Q运动到t秒时,△APQ沿PQ所在的直线翻折,点A恰好落在抛物线上E点处,请直接判定此时四边形APEQ的形状,并求出E点坐标(请在图2中探索).2017年常州市数学中考模拟试题答案1.A.【解析】试题分析:根据绝对值的定义可得﹣3的绝对值是3.故选A.考点:绝对值.2.D.【解析】试题分析:利用积的乘方运算法则与幂的乘方运算法则可得(x2y)3=x6y3.故选D.考点:幂的乘方与积的乘方.3.C.【解析】试题分析:解不等式x﹣1>0,得:x>1,所以不等式组的解集为:1考点:解一元一次不等式组.4.B.【解析】试题分析:已知AB和⊙O相切于点B,由切线的性质得出∠ABO=90°,由直角三角形的性质得出∠A=90°﹣∠AOB=90°﹣60°=30°;故选B.考点:切线的性质.5.C.【解析】试题分析:中位数要把数据按从小到大的顺序排列,位于最中间的一个数(或两个数的平均数)为中位数,将数据由小到大排列2,2,3,4,5,所以中位数是3,故选C.考点:中位数.6.C.【解析】试题分析:,①当∠A为直角时,过点A作垂线与直线的交点W(﹣8,10),②当∠B为直角时,过点B作垂线与直线的交点S(2,2.5),③若∠C为直角则点C在以线段AB为直径、AB中点E(﹣3,0)为圆心的圆与直线y= 的交点上.过点E作垂线与直线的交点为F(﹣3, ),则EF=∵直线y= 与x轴的交点M为( ,0),∴EM= ,EF= =∵E到直线y= 的距离d= =5∴以线段AB为直径、E(﹣3,0)为圆心的圆与直线y=﹣恰好有一个交点.所以直线y= 上有一点C满足∠C=90°.综上所述,使△ABC是直角三角形的点C的个数为3,故选C.考点:一次函数图象上点的坐标特征;勾股定理的逆定理.7.C.【解析】试题分析:选项A,a3+a2,不是同类项不能合并,选项A错误;选项B,根据积的乘方与幂的乘方的性质可得(﹣ab2)3=﹣a3b6,选项B错误;选项C,据整式乘法法则可得2a(1﹣a)=2a﹣2a2,选项C 正确;选项D,根据乘法公式可得(a+b)2=a2+2ab+b2,选项D错误.故选C.考点:整式的混合运算.8.C.【解析】试题分析:由①,得x>﹣3,由②,得x≤2,故原不等式组的解集是﹣3考点:解一元一次不等式组;在数轴上表示不等式的解集.9.B.【解析】试题分析:由x2﹣6x+8=0可得(x﹣4)(x﹣2)=0,所以x1=4,x2=2,由三角形的三边关系可得:腰长是4,底边是2,所以周长是:4+4+2=10.故选B.考点:三角形三边关系;等腰三角形的性质.10.D.【解析】试题分析:由于总共有11个人,且他们的分数互不相同,第6的成绩是中位数,要判断是否进入前6名,故应知道中位数的多少.故选D.考点:统计量的选择.11.4.【解析】试题分析:已知D、E分别是边AB、AC的中点,BC=8,根据三角形的中位线定理得到DE= BC=4.考点:三角形中位线定理.12.多边形内角与外角.【解析】试题分析:根据多边形的外角和等于360°即可得十边形的外角和是360°.考点:360.13.3.【解析】试题分析:利用同分母分式的加法法则计算即可,即原式= =3.考点:分式的加减法.14.5.【解析】试题分析:根据直角三角形斜边上的中线等于斜边的一半,可得CE= AB=5.考点:直角三角形斜边上的中线.15.2:3.【解析】试题分析:已知⊙O的弦AB、CD相交于点E,根据相交弦定理得到AE•BE=CE•DE,所以AE:DE=CE:BE=2:3.考点:相交弦定理.16.226.【解析】试题分析:观察图形可得,0+2=1×2,2+10=3×4,4+26=5×6,6+50=7×8,由此规律可得14+a=15×16,解得:a=226.考点:规律探究题.17.65°.【解析】试题分析:根据平行线的性质得∠ABC+∠BCD=180°,根据对顶角相等得∠ABC=∠1=50°,则∠BCD=130°,再利用角平分线定义得到∠ACD= ∠BCD=65°,然后根据平行线的性质得到∠2=∠ACD=65°.考点:平行线的性质.18.2.【解析】试题分析:已知直线y= x与双曲线y= 在第一象限的交点为A(2,m),可得m= ×2=1,即可得 A(2,1),所以k=xy=2×1=2.考点:反比例函数与一次函数的交点问题.19.0.【解析】试题分析:分别进行零指数幂、绝对值的化解、二次根式的化简、负整数指数幂等运算,然后合并.试题解析:原式=1+2﹣2﹣1=0.考点:实数的运算;零指数幂;负整数指数幂.。
江苏省常州市金坛区2017届中考模拟试卷
江苏省常州市金坛区2017届中考模拟试卷2017.5 说明:1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,全卷满分为100分。
考试时间为100分钟。
2.考试时一律用黑色笔答题,不允许使用计算器、胶带纸、修正液。
3.可能用到的相对原子质量:Ar(H)=1 Ar(C)=12 Ar(O)=16 Ar(Mn)=55 Ar(Ba)=137 Ar(K)=39 Ar(Na)=23 Ar(Cl)=35.5 Ar(S)=32 Ar(N)=14第Ⅰ卷(选择题共40分)一、选择题(本题包括20小题,共40分。
每小题只有一个选项符合题意)1.下列变化属于化学变化的是()A.电灯发光B.盐酸除锈C.工业制氧气D.蛋清中加饱和硫酸铵溶液2.下列元素中肯定不是人体中的微量元素的是()A. ZnB.CuC. ID.Ca3.下列物质属下金属材料的是()A.钨灯丝B.铁矿石C.二氧化锰D.碳4.人类需要洁净的空气,目前我国城市空气质量日报中的污染物不包括()A.可吸入颗粒物B.二氧化碳C.二氧化氮D.二氧化硫5.下列食品或制剂中,富含蛋白质的是()A.鱼肝油B.糙米C.牛奶D.水果6.居里夫人首先发现某些原子具有放射性,即原子能自动地放射出一些特定的粒子。
一种元素的原子经过放射变成了另一种元素的原子,据此推断放射出的粒子一定是()A.电子B.中子C.质子D.原子核7.下列仪器中能直接放在酒精灯上加热的有()①试管;②集气瓶③蒸发皿;④量筒;⑤烧杯;⑥燃烧匙A.①③⑥B. ①②⑤C. ①④⑤⑥D.②③⑤⑥8.下列对于实验现象的描述正确的是()A.木炭在氧气中燃烧放出热量,产生二氧化碳B.蜡烛在氧气中燃烧放热、产生大量白烟C.电解水时正负极产生气体体积比是1:2D.红磷在氧气中燃烧产生大量的白雾并发出篮光9.下列有关微粒的说法正确的是()A.分子可以再分,而原子不能再分B.分子大,原子小C.原子失去电子变成阴离子D.分子、原子、离子都可以构成物质10.“三氯生”是一种高效广谱抗菌剂,广泛用于牙膏、药皂、洗面奶、空气清新剂等。
2017年江苏省常州市中考语文试卷
绝密★启用前江苏省常州市2017年中考试卷语文一、积累与运用(共20分)1.把文中加点字的注音和拼音所表示的汉字填在指定方格内。
(2分)“融.”()获选2017年“一带一路”主题汉字。
作为中华民族的文化符号,汉字对更好地诠.()释“一带一路”战略所倡导的共融共赢的精神内hán()有天然优势。
为了追sù()仓颉造字以来的汉字历史,diàn()定“一带一路”建设的文化基础,举办者发起了这次年度汉字征选活动。
(改自《半月谈》)2.下列有关名著的表述,不正确的两项是(3分)()()A.《西游记》是一部章回体神魔小说,全书以丰富的想象描写了师徒四人在取经途中历经磨难的过程,歌颂了取经人百折不挠的精神。
B.取经成功,观音菩萨授唐僧为“金蝉子”,孙悟空为“金身罗汉”,猪八戒为“天蓬元帅”,沙僧为“斗战胜佛”。
C.宋江怒杀阎婆惜之后,被发配到江州,一日乘酒兴写下“反诗”,因此被抓,下到死囚牢中,最后梁山好汉劫了法场,救出宋江。
D.鲁达打死镇关西后东奔西逃,智真长老收留了他,赐他法名“智深”,为了更好地保护他,智真长老又将他介绍到东京大相国寺。
E.格列佛为利立浦特王国立下了大功,但后来得罪了皇帝,皇帝坚持要将他砍头,还对他用可耻手段扑灭寝宫大火的事怀恨在心。
3.下面是漫画《网络推手》和《自得其乐》,请选择其中一幅,简要概括其主题。
(2分)我选择的漫画是《______________》主题:____________________________________________________________________4.从唐朝诗人韦应物的这首诗里选一个词语作为诗的题目,并简述理由。
(3分)微雨众卉新,一雷惊蛰始。
田家几日闲,农耕从此起。
丁壮俱在野,场圃亦就理。
饥勤不自苦,膏泽且为喜。
__________________________________________________________________________________________________________________________________________________5.“24节气”申遗成功,但是“非遗可能死在博物馆中”却成为专家们的一大担忧。
2017常州中考英语模拟试卷及答案
2017常州中考英语模拟试卷及答案2017常州中考英语模拟试卷及答案学生想在中考取得更好的成绩备考的时候就要多做中考英语模拟试题,并加以复习,这样能更快提升自己的成绩。
以下为大家提供2017常州中考英语模拟试题及答案,考生可以多加练习来提高自己的成绩!2017常州中考英语模拟试题Ⅰ.听句子,选出与所听内容相符的选项。
每个句子读两遍(每小题1分,共5分)1.A.experiment B.explain C.environment2.A.thought B.sort C.bought3.A.turn off B.turn on C.put on4.A.look for B.hear from C.look after5.A.Li Ming has ever rung up Jenny.B.Li Ming has already woken up Jenny.C.Li Ming and Jenny work in the same office.Ⅱ.听句子,选择正确的答案。
每个句子读两遍(每小题1分,共5分)6.A.Yes, I can. B.No, I don’t. C.All right.7.A.Not at all.B.Not too bad.C.I’m fine, thanks.8.A.Seventeen cookies.B.One dollar for four cookies.C.They are delicious.9.A.It’s cheap.B.By creating an ad.C.By making some friends.10.A.It’s broken.B.I like it.C.I go to school by bike.Ⅲ.听对话和问题,选择正确的答案。
每段对话及问题读两遍(每小题1分,共5分)听第一段对话和问题,完成第11至12小题。
11.A.A football.B.A pencil-box.C.A big cake.12.A.Under the table.B.On the table.C.On the bed.听第二段对话和问题,完成第13至15小题。
2017年常州市中考物理模拟试题含答案
量是
A.密度
B.质量
C.压强
D.体积
2.一个中学生的体积最接近于(设人的密度与水相近)
A.50m 3
B.50dm 3
C.50cm 3
D.50mm 3
3.小明去某大型超市购物,自动扶梯将他从二楼匀速带到一楼,在这个过程中,他的
A. 势能变小,动能变大,机械能不变
B.势能变小,动能变大,机械能不变
C.势能变大,动能变小,机械能变大
D.势能变小,动能不变,机械能变小
4.小梦在做探究杠杆平衡条件的实验时,先在杠杆两端挂钩码进行实验探究,再用弹簧测
力计取代一侧的钩码继续探究,如图所示。他这样做的最终目的是
A.便于直接读出拉力的大小
B.便于提供不同方向的拉力
C.便于正确认识力臂
D.便于测量力臂的大小 5.如图所示,OAB 为轻质杠杆,可绕支点 O 自由转动,在 B 端施加一个动
A.物体的温度越高,所含的热量越多
B.0℃的冰没有内能
C.0℃的冰熔化成 0℃水时,内能增加
D.一个物体放出了热量,温度一定降低
10.小华使用额定电压相同的灯 L1 和 L2 来研究串联电路的特点,如图所
L1 L2
S
示,闭合开关后,发现灯 L1 发光,L2 不亮,下列分析正确的是
A.灯 L1 的实际功率大
b
生的故障是
A.电灯的灯丝断了
B.a、d 之间某处断路
C.b、c 之间某处断路
D.b 点到进户线的零线某处断路
8.下列事例中,通过做功的方式改变物体内能的是
dc
A.汽油机压缩冲程中燃料混合物的温度升高 B.冬天用热水袋暖手
C. 病人发烧时用冷毛巾在头部降温
D.冬天喝年奶前把牛奶放在热水中烫一
2017年江苏省常州市中考数学试卷(解析版)
①若四边形 ABCD 是等角线四边形,且 AD=BD,则四边形 ABCD 的面积是
;
②设点 E 是以 C 为圆心,1 为半径的圆上的动点,若四边形 ABED 是等角线四边形,写
出四边形 ABED 面积的最大值,并说明理由.
27.(10 分)如图,在平面直角坐标系 xOy,已知二次函数 y=﹣ x2+bx 的图象过点 A(4,
2017 年江苏省常州市中考数学试卷
一、选择题(本大题共 8 个小题,每小题 2 分,共 16 分.在每小题给出的四个选项中,只有 一项是符合题目要求的.) 1.(2 分)﹣2 的相反数是( )
A.
B.
C.±2
D.2
2.(2 分)下列运算正确的是( )
A.m•m=2m
B.(mn)3=mn3
C.(m2)3=m6
(1)①在“平行四边形、矩形、菱形”中,
一定是等角线四边形(填写图形名
称);
②若 M、N、P、Q 分别是等角线四边形 ABCD 四边 AB、BC、CD、DA 的中点,当对角
线 AC、BD 还要满足
时,四边形 MNPQ 是正方形.
(2)如图 2,已知△ABC 中,∠ABC=90°,AB=4,BC=3,D 为平面内一点.
.
12.(2 分)分解因式:ax2﹣ay2=
.
13.(2 分)已知 x=1 是关于 x 的方程 ax2﹣2x+3=0 的一个根,则 a=
.
14.(2 分)已知圆锥的底面圆半径是 1,母线是 3,则圆锥的侧面积是
.
15.(2 分)如图,已知在△ABC 中,DE 是 BC 的垂直平分线,垂足为 E,交 AC 于点 D,
(2)搅匀后先从中任意摸出 1 个球(不放回),再从余下的 3 个球中任意摸出 1 个球,
2017届常州市新中考摸底联考物理试卷
2017届常州市新中考摸底联考物理试卷学校:__________ 姓名:__________ 班级:__________ 考号:__________一、单选题1.某同学对生活中一些常见的物理量进行了估测,其中最接近实际的是 ............... ()A.初中生正常步行的速度是8m/s B.教室里每盏日光灯的电功率是40WC.初中物理课本的厚度是175.5mm D.人的正常体温是38.6℃2.如图为某物质熔化时温度随时间变化的图像,根据图像所给信息,下列判断正确的是 ............................................................................................................................................ ()A.该物质的熔点是0℃,在第2min到第3min内是固液共存态,其内能增加B.该物质的熔点是0℃,在第2min到第3min内是固液共存态,其内能不变C.该物质的熔点是-4℃,在第5min到第6min内是液态,其内能增加D.该物质的熔点是0℃,在第5min到第6min内是气态,其内能增加3.小王同学分析了四个常见事例中的能量转化,其中正确的是:()A.在汽油机的做功冲程中,内能转化为机械能;B.电风扇正常工作过程中,电能主要转化为内能;C.电热水器工作过程中,内能转化为电能;D.跳水运动员在空中下落的过程中,动能转化为重力势能.4.用图像可以表示物体的运动规律,图中用来表示物体做匀速直线运动的是()A.②④B.①③C.①④D.②③5.天平是测质量的常用工具。
使用时先要调节横梁平衡,当发现指针停在分度盘中央刻度线的右边时(如图所示),要使指针停在中央刻度线,应该:A.将平衡螺母向右调; B.将平衡螺母向左调;C.将游码向右移动; D.在右盘中加砝码.6.铜的密度为8.9×103 kg/m3,这表示()A.每立方米铜的质量是8.9×103 kg B.每立方米铜的密度是8.9×103 kg/m3C.每立方米铜的密度是8.9×103 kg D.每立方米铜的质量是8.9×103 kg/m37.著名的医生扁鹊曾用“磁石治病”,他所用的“磁石”是:()A.被磁体磁化了的石头; B.物理学中所说的磁体;C.磁感应线 ; D.被磁体磁化了的一种中草药.8.如图所示,将大的条形磁铁中间挖去一块,放入一可以自由转动的小磁针,当小磁针静止时,它的N极应指向.......................................................................................................... ()A.左边B.右边C.b边或d边D.不能确定9.如果电视机、电烙铁和电风扇上都标有“220V,60W”的字样,它们都在额定电压下工作相同时间,则三个用电器产生的热量是()A.电烙铁最多B.电视机最多C.电风扇最多D.一样多10.下列材料,既是晶体又是导体的是......................................................................... ()A.塑料B.冰C.陶瓷D.铁11.3月23日,世界气象日,小丽在气象局组织的活动中了解到,人工增雨有多种方式,播撒碘化银、干冰、和液氮是较为常用的三种方式,播撒液氮是利用了它()A.蒸发吸热B.液化放热C.液化吸热D.升华吸热12.下列说法中不正确的一项是()。
2017年江苏省常州市中考语文模拟卷十【WORD版,附答案】
2017年常州市中考语文模拟卷十(2017.5)注意事项:1.全卷试题8页,答题卡4页,共12页,21题。
满分120分,考试时间150分钟。
2.用蓝色或黑色钢笔、圆珠笔将答案直接写在答卷纸相应的位置上,写在试卷上无效。
选择题一律用2B铅笔填涂。
3.答卷前将答卷纸上密封线内的项目填写清楚。
4.考试结束后,请将答题卡交回。
一、积累运用(共18分)(一)积累(共11分)1、阅读下面文字,把文中拼音所表示的汉字和加点汉字的拼音依次分类填在方格内。
(2分)人生是对未来的chōng()憬、梦想,是与岁月的较量。
只要有梦想,即使历经沧桑的百岁老妪.(),也能qián()诚地写出青春少女情怀般的诗歌;如果失去梦想,即使初生牛犊的热血青年,也一定会被岁月戏xuè(),陨()落进无边的黑暗。
拥有梦想是一个人取得成功的关键。
2、默写(7分)①▲,君子好逑。
(《诗经·关雎》)②遥看是君家,▲。
③▲,都护在燕然。
④《登幽州台歌》中诗人通过写空间辽阔抒发悲哀苦闷心情的诗句是:▲,▲。
⑤学校文学社主办的电子校刊已设计好栏目及其封面,还需在封面上配一两句与栏目内容相关的古典诗文名句,请根据右图封面的内容和诗文名句出处,默写出相关名句。
▲,▲。
选自王湾《次北固山下》3.选出对《格列佛游记》的内容表述错误的两项。
(2分)【▲】【▲】A、利立浦特的大官们常常奉命表演绳上跳舞的技艺,跳得最好的是财政大臣和内务大臣,连皇帝也因他们技艺高超又不分伯仲而赞不绝口。
B、格列佛在大人国的第三年,陪同国王巡视边疆,由于思乡心切,他假装生病,来到海边呼吸新鲜空气。
天空中的老鹰错把他住的箱子当成乌龟叼了起来。
几只鹰在空中争夺,箱子掉进海里,被路过的一艘船发现,格列佛获救后,乘船回到英国。
C、小人国的国王野心勃勃,在与邻国不来夫斯古战争中,格列佛涉过海峡把不来夫斯古国大部分舰队俘获过来,从此格列佛受到小人国国王重用,海军大将斯开瑞士大为不满,与财政大臣合谋谋害格列佛。
江苏省常州市金坛区2017届中考模拟试卷
江苏省常州市金坛区2017届中考模拟试卷2017.5 说明:1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,全卷满分为100分。
考试时间为100分钟。
2.考试时一律用黑色笔答题,不允许使用计算器、胶带纸、修正液。
3.可能用到的相对原子质量:Ar(H)=1 Ar(C)=12 Ar(O)=16 Ar(Mn)=55 Ar(Ba)=137 Ar(K)=39 Ar(Na)=23 Ar(Cl)=35.5 Ar(S)=32 Ar(N)=14第Ⅰ卷(选择题共40分)一、选择题(本题包括20小题,共40分。
每小题只有一个选项符合题意)1.下列变化属于化学变化的是()A.电灯发光B.盐酸除锈C.工业制氧气D.蛋清中加饱和硫酸铵溶液2.下列元素中肯定不是人体中的微量元素的是()A. ZnB.CuC. ID.Ca3.下列物质属下金属材料的是()A.钨灯丝B.铁矿石C.二氧化锰D.碳4.人类需要洁净的空气,目前我国城市空气质量日报中的污染物不包括()A.可吸入颗粒物B.二氧化碳C.二氧化氮D.二氧化硫5.下列食品或制剂中,富含蛋白质的是()A.鱼肝油B.糙米C.牛奶D.水果6.居里夫人首先发现某些原子具有放射性,即原子能自动地放射出一些特定的粒子。
一种元素的原子经过放射变成了另一种元素的原子,据此推断放射出的粒子一定是()A.电子B.中子C.质子D.原子核7.下列仪器中能直接放在酒精灯上加热的有()①试管;②集气瓶③蒸发皿;④量筒;⑤烧杯;⑥燃烧匙A.①③⑥B. ①②⑤C. ①④⑤⑥D.②③⑤⑥8.下列对于实验现象的描述正确的是()A.木炭在氧气中燃烧放出热量,产生二氧化碳B.蜡烛在氧气中燃烧放热、产生大量白烟C.电解水时正负极产生气体体积比是1:2D.红磷在氧气中燃烧产生大量的白雾并发出篮光9.下列有关微粒的说法正确的是()A.分子可以再分,而原子不能再分B.分子大,原子小C.原子失去电子变成阴离子D.分子、原子、离子都可以构成物质10.“三氯生”是一种高效广谱抗菌剂,广泛用于牙膏、药皂、洗面奶、空气清新剂等。
(高清版)2017年江苏省常州市英语中考试卷
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