2019年扬州树人学校九年级第一次模拟考试
扬州树人学校2019届九年级第一次模拟试卷九年级 英语(含答案)
扬州树人学校2019年九年级第一次模拟试卷九年级英语2019.04一、单项选择1.As we all know,China is _____Asian country and Britain is______ European country,A.an;anB.a;aC.a;anD.an;a2.—-Can't you see the kid looking_______his mother's shoulder at the dancing birds again----Em, that's what children are like.A.acrossB.beyondC.towardsD.through3.The photo which has won the first prize has a great ______ of colour,content and feelings.A.advantageB.backgroundC.balancendscape4.---Did you enjoy the film yesterday?----No, not at all! I was_____blind because I left my glasses at home.A.so good asB.as well asC.as good asD.so well as5.---How do you get on with the English novel?---I've no idea.I ______only half of it,and I will try to finish it at the weekend.A.readB.am readingC.have readD.will read6.In the song I Bet My Life, the US rock band Imagine Dragons tells people not to_____catching their dreams.A.give outB.give offC.give inD.give up7.This dress still looks pretty on you, ______it is out of styleA.butB.thoughC.sinceD.unless8.----- Tom’s seldom asked to do housework at home,_____ he?---- _____. His parents are very busy with their work,so he has to do some cleaning every day.A. has;YesB.hasn't;NoC.is;YesD.isn't;No9.-Do you know______ the meeting will last----- ______ the agreement is reached, I suppose.A,how long:Not until B.when;Not until C how long D.when;Until 10.You have been toYangzhou recently. What do you think of this city?--- I like it very much, and I think it is the most beautiful place ____ I have ever been to.A.whichB.thatC.whereD.who11.An explosion(爆炸)happened in Xiangshui, Yanchen last weak.People wondered _____A. that why it happenedB.how did the government help solve the problemC.what caused the terrible accidentD.how many people are killed in the accident12.L ife is about waiting for the right moment_____, because everyone is in his own TIME ZONE.13.----Lily, I know you're confident about getting that job,but remember” _______”.So why not send your application forms to a few more companies?—Sounds good,A.don't put your eggs in one basketB.the early bird catches the wormC.actions speak louder than wordsD.something is better than nothing14.----- Need I finish my homework today, Mum?---- _____. You will be busy and have no time to it tomorrow.A.Yes, you needB.Yes, you mustC. Yes, you have toD.No, you needn't.15.--- I love the Internet.I've come to know many friends on the Net.---- _____. Few of them would become your real fiends.A.I can't agree moreB.I'm pleased to know thatC.Never mindD.That's not the case二、完形填空(共 15 小题;每小题 1 分,计 15 分)阅读短文,从每题所给选项中选出可以填入空白处的最佳选项。
2019-2020学年江苏省扬州市扬州中学教育集团树人学校初三一模物理试卷2020.5
扬州树人学校九年级第一次模拟考试物理试卷2020.5(满分:100分时间:100分钟)注意:所有试题都必须在“答题纸”上作答,在试卷或草稿纸上答题无效。
本卷 g=10N/kg.一、选择题(本题共12小题,每空2分,共24分,每小题四个选项中只有一个选项正确)1.下列估测与实际最相符的是( ▲ )A.中学生课桌的高度是 0.5m B.普通中学生的质量为 50kgC.人正常步行的速度是 5m/s D.家用冰箱工作时的电流为 5A2.下列物态变化过程中,需要吸热的是( ▲ )A.冬天,冰冻的衣服逐渐变干B.夏天,打开冰棍纸看到“白气”C.深秋,屋顶的瓦上结了一层霜D.秋天的早晨花草上出现小的露珠3.下面列举的四个光现象中,属于光的直线传播的是( ▲ )4.下图中的生活用具中,属于费力杠杆的是( ▲ )A.食品夹B.瓶起子C.羊角锤D.钢丝钳第 4 题图5.关于能源、信息和材料,下列说法正确的是( ▲ )A.我国的北斗卫星导航系统是利用超声波来传递信息的B.物体间能量的转化与转移不具有方向性C.“半导体材料”广泛应用于手机、电视机、电脑的元件及芯片D.当电饭锅的发热体使用“超导体”后,能提高其热效率6.关于粒子和宇宙的说法正确的是( ▲ )A.水和酒精混合后总体积变小,说明分子间存在引力B.分子间仅存在吸引力,不存在排斥力C.宇宙是一个有层次的天体结构体系,太阳属于银河系中的一颗恒星D.根据银河系的直径大约为 8 万光年,可知光年是时间单位7.电动平衡车是一种时尚代步工具.如图所示,当人驾驶平衡车在水平路面上匀速直线运动时,下列说法正确的是( ▲ )A.关闭电机,平衡车仍继续前进是由于其受到惯性作用B.平衡车受到的重力与地面对它的支持力是一对平衡力C.若平衡车在运动过程中所受的力全部消失,平衡车会慢慢停下来D.平衡车轮胎上的花纹是为了增大摩擦8.小明家火线上的熔丝熔断.小明检查时,断开所有的开关,将一只完好的白炽灯L 接到图示位置.下列说法正确的是( ▲ )A.只闭合 S、S1,若灯L 正常发光,说明L1支路无故障B.只闭合 S、S2,若灯L 正常发光,说明L2支路短路C.只闭合 S、S1,若灯L发光较暗,说明 L1支路断路D.只闭合 S、S2,若灯L 不发光,说明L2支路短路9.如图是小制作“神奇转框”,框的上部中央与电池正极相连,下部紧贴在与电池负极相连的可导电的柱形磁体两侧,金属框就能持续转动,以下各图与其工作原理相同的是( ▲ )第9题图10.水平台上放有两个完全相同的烧杯,分别盛有甲、乙两种液体,将质量相等、体积不等的正方体物块M、N分别放入两杯中,静止时如图所示,液面刚好相平。
扬州树人学校九年级第一次模考试语文及答案
说明:扬州树人学校九年级第一次模拟考试语文试卷2018.3(满分:150 分;考试时间:150 分钟)1.答题前,考生务必将本人的姓名、准考证号填写在答题卡相应的位置上。
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考试结束后,请将答题卡交回。
一、积累运用(36 分)1.下列加点字注音全.部.正.确.的一项是(2 分) ()A.癖(pì)性庖(bāo)代创(chuàng)伤偌(nuò)大B.揿(qìn)钮胸脯(pú) 执拗(niù) 腼腆(tiǎn)C.绯(fěi)红杀戮(lù) 消弭(ěr) 累(lèi)赘D.尴尬(jiè) 缱绻(quǎn) 冗(lǒng)杂诘(jié)责2.下列各句中,标点符号使用全都正确的一项是(2 分)()A.入学之初那句颇为雄壮的誓言——“我不仅为树人感到骄傲,更要让树人为我而感到自豪”——在树人楼的映衬下骤然显得苍白无力。
B.“吹面不寒杨柳风,”不错的,像母亲的手抚摸着你。
C.“不过人不是为失败而生的,”他接着说:“一个人可以被毁灭,但不能被打败。
”D.鲁迅写下这一篇美文《雪》的时候,是不是正在北京的四合院里住着。
3.下列各句中加点成语的使用正.确.的一项是(2 分) ()A.他平时学习刻苦认真,这次期中考试又取得了优秀的成绩,真让他喜.出.望.外.。
B.现代人需要永恒的山水带给他们宁静的感觉,但这一切对现代人来说已经望.尘.莫.及.了。
C.在繁忙而紧张的初三学习中,父母见.微.知.著.的关怀,老师循循善诱的教导,使同学们倍受感动和鼓舞。
D.我敬佩女排姑娘们的拼搏精神,她们面对困难不.以.为.意.,一次次书写绝地反击的奇迹。
4.下列句子没.有.语.病.的一项是(2 分) ()A . 随着近年来草原自驾的兴起,严重危害草原生态环境,正在成为草原不可承受之重。
2019年扬州市树人学校中考数学一模试卷
2019年扬州市树人学校中考数学一模试卷一.选择题1.﹣5的绝对值是()A .B.﹣5C.5D .﹣2.下列运算正确的是()A.a2•a3=a6B.a3÷a﹣3=1C.(a﹣b)2=a2﹣ab+b2D.(﹣a2)3=﹣a63.如图是一个由4个相同正方体组成的立体图形,它的左视图是()A .B .C .D .4.下列汽车标志的图形是中心对称图形的是()A .B .C .D .5.某校为了解学生的课外阅读情况,随机抽取了一个班级的学生,对他们一周的读书时间进行了统计,统计数据如下表所示:7891011读书时间(小时)学生人数610987则该班学生一周读书时间的中位数和众数分别是()A.9,8B.9,9C.9.5,9D.9.5,86.已知直线a∥b,将一块含45°角的直角三角板(∠C=90°)按如图所示的位置摆放,若∠1=55°,则∠2的度数为()A.80°B.70°C.85°D.75°7.如图,有四个三角形,各有一边长为6,一边长为8,若第三边分别为6,8,10,12,则面积最大的三角形是()A.B.C.D.8.如图1,在矩形ABCD中,点E在CD上,∠AEB=90°,点P从点A出发,沿A→E→B的路径匀速运动到点B停止,作PQ⊥CD于点Q,设点P运动的路程为x,PQ长为y,若y与x之间的函数关系图象如图2所示,当x=6时,PQ的值是()A.2B.C.D.1二.填空题9.中国的陆地面积和领水面积共约9970000km2,9970000这个数用科学记数法可表示为.10.在函数y=中,自变量x的取值范围是.11.分解因式:a3﹣16a=.12.一个正多边形的每个内角等于108°,则它的边数是.13.已知m2﹣2m=1,则代数式3m2﹣4m+3的值为.14.五张看上去无差别的卡片,正面分别写着数字1,2,2,3,5,现把它们的正面向下,随机地摆放在桌面上,从中任意抽出一张,则抽到数字“2”的卡片的概率是.15.已知反比例函数y=在第一象限的图象如图所示,点A是在图象上AB⊥OB,且S=3,△AOB 则k=.16.如图,在平行四边形ABCD中,AB<AD,∠D=30°,CD=4,以AB为直径的⊙O交BC于点E,则阴影部分的面积为.17.如图,⊙O是△ABC的外接圆,BC是直径,AC=2DH,过点D作DH⊥BC于点H.以下结论中:①BH=HD;②∠BAO=∠BOD;③=;④连接AO、BD,若BC=8,sin∠HDO=,则四边形ABDO的面积为3,其中正确的结论是.18.如图,正方形ABCD的边长为6,E,F是对角线BD上的两个动点,且EF=,连接CE,CF,则△CEF周长的最小值为.三.解答题19.(1)(π﹣3.14)0﹣+(﹣1)﹣1+cos45°(2)解不等式组:20.先化简,再求值:÷(x+1﹣),其中x=﹣2.21.随着我国经济社会的发展,人民对于美好生活的追求越来越高,某社区为了了解家庭对于文化教育的消费情况,随机抽取部分家庭,对每户家庭的文化教育年消费金额进行问卷调查,根据调查结果绘制成如下两幅不完整的统计图表.组別家庭的文化教育年消费金额x(元)户数A x≤500036B5000<x≤10000mC10000<x≤1500027D15000<x≤2000015E x>2000030请你根据统计图表提供的信息,解答下列问题:(1)本次被调查的家庭有户,表中m=;(2)在扇形统计图中,E组所在扇形的圆心角为多少度?(4)这个社区有2500户家庭,请你估计年文化教育消费在10000元以上的家庭有多少户.22.在一个不透明的盒子中装有大小和形状相同的3个红球和2个白球,把它们充分搅匀.(1)“从中任意抽取1个球不是红球就是白球”是事件,“从中任意抽取1个球是黑球”是事件;(2)从中任意抽取1个球恰好是红球的概率是;(3)学校决定在甲、乙两名同学中选取一名作为学生代表发言,制定如下规则:从盒子中任取两个球,若两球同色,则选甲;若两球异色,则选乙.你认为这个规则公平吗?请用列表法或画树状图法加以说明.23.如图,在△ABC中,以BC为直径的⊙O交AC于点E,过点E作AB的垂线交AB于点F,交CB的延长线于点G,且∠ABG=2∠C.(1)求证:EG是⊙O的切线;(2)若tan C=,AC=8,求⊙O的半径.24.徐州至北京的高铁里程约为700km,甲、乙两人从徐州出发,分别乘坐”徐州号“高铁A与”复兴号“高铁B前往北京.已知A车的平均速度比B车的平均速度慢80km/h,A车的行驶时间比B车的行驶时间多40%,两车的行驶时间分别为.25.邻边不相等的平行四边形纸片,剪去一个菱形,余下的一个四边形,称为第一次操作;在余下的四边形纸片中再剪去一个菱形,又余下一个四边形,称为第二次操作;…依此类推,若第n次操作余下的四边形是菱形,则称原平行四边形为n阶准菱形,如图1,▱ABCD中,若AB=1,BC =2,则▱ABCD为1阶准菱形.(1)猜想与计算:邻边长分别为4和7的平行四边形是阶准菱形;已知▱ABCD的邻边长分别为a,b(a>b),满足a=7b+r,b=3r,请写出▱ABCD是阶准菱形.(2)操作与推理:小明为了剪去一个菱形,进行了如下操作:如图2,把▱ABCD沿BE折叠(点E在AD上),使点A落在BC边上的点F处,得到四边形ABFE.请证明四边形ABFE是菱形.26.如图,P点是某海域内的一座灯塔的位置,船A停泊在灯塔P的南偏东53°方向的50海里处,船B位于船A的正西方向且与灯塔P相距海里.(本题参考数据sin53°≈0.80,cos53°≈0.60,tan53°≈1.33.)(1)试问船B在灯塔P的什么方向?(2)求两船相距多少海里?(结果保留根号)27.为迎接“世界华人炎帝故里寻根节”,某工厂接到一批纪念品生产订单,按要求在15天内完成,约定这批纪念品的出厂价为每件20元,设第x天(1≤x≤15,且x为整数)每件产品的成本是p元,p与x之间符合一次函数关系,部分数据如下表:天数(x)13610每件成本p(元)7.58.51012任务完成后,统计发现工人李师傅第x天生产的产品件数y(件)与x(天)满足如下关系:y=设李师傅第x天创造的产品利润为W元.(1)直接写出p与x,W与x之间的函数关系式,并注明自变量x的取值范围;(2)求李师傅第几天创造的利润最大?最大利润是多少元?(3)任务完成后,统计发现平均每个工人每天创造的利润为299元.工厂制定如下奖励制度:如果一个工人某天创造的利润超过该平均值,则该工人当天可获得20元奖金,请计算李师傅共可获得多少元奖金?28.如图,抛物线y=﹣x2+bx+c与x轴交于A(﹣1,0)和B(3,0),与y轴交于C点,点C 关于抛物线的对称轴的对称点为点D.抛物线顶点为H.(1)求抛物线的解析式.(2)当点E在抛物线的对称轴上运动时,在直线AD上是否存在点F,使得以点A、C、E、F为顶点的四边形为平行四边形?若存在,请求出点F的坐标;若不存在,请说明理由.(3)点P为直线AD上方抛物线的对称轴上一动点,连接PA,PD.当S=3,若在x轴上△PAD 存在以动点Q,使PQ+QB最小,若存在,请直接写出此时点Q的坐标及PQ+QB的最小值.参考答案与试题解析一.选择题1.【分析】根据一个负数的绝对值是它的相反数求解即可.【解答】解:﹣5的绝对值是5.故选:C.【点评】本题考查了绝对值的定义:一个正数的绝对值是它本身;一个负数的绝对值是它的相反数;0的绝对值是0.2.【分析】根据同底数幂的乘法、完全平方公式及同底数幂的除法、幂的乘方逐一计算可得.【解答】解:A、a2•a3=a5,此选项错误;B、a3÷a﹣3=a6,此选项错误;C、(a﹣b)2=a2﹣2ab+b2,此选项错误;D、(﹣a2)3=﹣a6,此选项正确;故选:D.【点评】本题主要考查幂的运算,解题的关键是掌握同底数幂的乘法、完全平方公式及同底数幂的除法、幂的乘方的运算法则.3.【分析】根据从左边看得到的图形是左视图,可得答案.【解答】解:从左边看第一层是两个小正方形,第二层左边一个小正方形,故选:D.【点评】本题考查了简单组合体的三视图,从左边看得到的图形是左视图.4.【分析】根据中心对称图形的概念对各选项分析判断即可得解.【解答】解:A、不是中心对称图形,故本选项不符合题意;B、不是中心对称图形,故本选项不符合题意;C、是中心对称图形,故本选项符合题意;D、不是中心对称图形,故本选项不符合题意.故选:C.【点评】本题考查了中心对称图形的概念,中心对称图形是要寻找对称中心,旋转180度后两部分重合.5.【分析】根据表格中的数据可知该班有学生40人,从而可以求得中位数和众数,本题得以解决.【解答】解:由表格可得,该班学生一周读书时间的中位数和众数分别是:9、8,故选:A.【点评】本题考查众数、中位数,解答本题的关键是明确题意,会求一组数据的众数和中位数.6.【分析】想办法求出∠5即可解决问题;【解答】解:∵∠1=∠3=55°,∠B=45°,∴∠4=∠3+∠B=100°,∵a∥b,∴∠5=∠4=100°,∴∠2=180°﹣∠5=80°,故选:A.【点评】本题考查平行线的性质,三角形内角和定理,三角形的外角的性质等知识,解题的关键是灵活运用所学知识解决问题,属于中考常考题型.7.【分析】过C作CD⊥AB于D,依据AB=6,AC=8,可得CD≤8,进而得到当CD与AC重合时,CD最长为8,此时,∠BAC=90°,△ABC的面积最大.【解答】解:如图,过C作CD⊥AB于D,∵AB=6,AC=8,∴CD≤8,∴当CD与AC重合时,CD最长为8,此时,∠BAC=90°,△ABC的面积最大,∴BC==10,∴四个三角形中面积最大的三角形的三边长分别为6,8,10,故选:C.【点评】本题主要考查了三角形的面积以及勾股定理的逆定理,关键在于正确的表示出斜边、直角边的长度,熟练运用勾股定理的逆定理进行分析.8.【分析】由图象可知:AE=3,BE=4,∠DAE=∠CEB=α,设:AD=BC=a,在Rt△ADE中,conα==,在Rt△BCE中,sinα==,由(sinα)2+(conα)2=1,解得:a=,当x=6时,即:EN=3,则y=MN=EN sinα=.【解答】解:由图象可知:AE=3,BE=4,∠DAE=∠CEB=α,设:AD=BC=a,在Rt△ADE中,cosα==,在Rt△BCE中,sinα==,由(sinα)2+(cosα)2=1,解得:a=,当x=6时,即:EN=3,则y=MN=EN sinα=.故选:B.【点评】本题考查的是动点问题函数图象,涉及到解直角三角形或三角形相似,解题关键是深刻理解动点的函数图象,了解图象中关键点所代表的实际意义,理解动点的完整运动过程.二.填空题9.【分析】科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数.确定n的值时,要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数.【解答】解:9 970 000=9.97×106,故答案是:9.97×106.【点评】此题考查科学记数法的表示方法.科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.10.【分析】根据被开方数是非负数且分母不等于零,可得答案.【解答】解:由题意知,解得:x>1,故答案为:x>1.【点评】本题考查了函数自变量的取值范围,利用被开方数是非负数且分母不等于零得出不等式是解题关键.11.【分析】先提取公因式a,再对余下的多项式利用平方差公式继续分解.平方差公式:a2﹣b2=(a+b)(a﹣b).【解答】解:a3﹣16a,=a(a2﹣16),=a(a+4)(a﹣4).【点评】本题主要考查提公因式法分解因式和利用平方差公式分解因式,难点在于需要进行二次分解.12.【分析】根据相邻的内角与外角互为邻补角求出每一个外角的度数为72°,再用外角和360°除以72°,计算即可得解.【解答】解:∵正多边形的每个内角等于108°,∴每一个外角的度数为180°﹣108°=72°,∴边数=360°÷72°=5,∴这个正多边形是正五边形.故答案为:5.【点评】本题考查了多边形的内角与外角,对于正多边形,利用多边形的外角和除以每一个外角的度数求边数更简便.13.【分析】已知等式变形后,代入原式计算即可求出值.【解答】解:∵m2﹣2m=1,∴3m2﹣4m=2,则原式=2+3=5.故答案为:5.【点评】此题考查了代数式求值,熟练掌握运算法则是解本题的关键.14.【分析】根据有五张质地、大小、反面完全相同的不透明卡片,其中数字2有个,再根据概率公式即可得出答案.【解答】解:∵共有5个数字,数字2有2个,∴抽到数字“2”的卡片的概率是.故答案为:.【点评】此题考查了概率公式的应用.注意用到的知识点为:概率=所求情况数与总情况数之比.15.【分析】过双曲线上任意一点与原点所连的线段、坐标轴、向坐标轴作垂线所围成的直角三角形面积S是个定值,即S=|k|.=|k|=3,【解答】解:根据题意可知:S△AOB∵反比例函数图象有第一象限,∴k>0,∴k=6故答案为:6.【点评】此题主要考查了反比例函数系数k的几何意义,正确表示出三角形面积是解题关键.16.【分析】连接半径和弦AE,根据直径所对的圆周角是直角得:∠AEB=90°,可得AE和BE 的长,所以图中弓形的面积为扇形OBE的面积与△OBE面积的差,因为OA=OB,所以△OBE 的面积是△ABE面积的一半,可得结论.【解答】解:连接OE、AE,∵AB是⊙O的直径,∴∠AEB=90°,∵四边形ABCD是平行四边形,∴AB=CD=4,∠B=∠D=30°,∴AE=AB=2,BE==2,∵OA=OB=OE,∴∠B=∠OEB=30°,∴∠BOE=120°,∴S阴影=S扇形OBE﹣S△BOE,=﹣×,=﹣,=﹣,故答案为:﹣.【点评】本题考查了扇形的面积计算、平行四边形的性质,直角三角形中30度角等知识点,能求出扇形OBE的面积和△ABE的面积是解此题的关键.17.【分析】作OE⊥AC于E.首先证明Rt△DOH≌Rt△AOE≌Rt△COE,利用全等三角形的性质,解直角三角形等知识一一判断即可.【解答】解:连接BD,DO,作OE⊥AC于E.∵OE⊥AC,∴AE=EC,∵AC=2DH,∴DH=AE=CE,∵OD=OA=OC,∴Rt△DOH≌Rt△AOE≌Rt△COE,∴∠ODH=∠OAC,OH=OE,∵BC是直径,∴∠BAC=90°,∴∠BAO+∠OAE=90°,∵∠BOD+∠ODH=90°,∴∠BAO =∠BOD ,故②正确,假设①成立,则点H 与O 重合,显然不符合题意,故①错误;∵AE =EC ,BO =OC ,∴AB =2OE =2OH , ∴,故③正确,∵BC =8,sin ∠ODH =,∴OH =OE =1,∴AE =EC =DH =,∴S △AOB =2S △AOE =2×××1=, ∵S △BOD =×4×=2,∴S 四边形ABDO =S △ABO +S △OBD =+2=3.故④正确, 故答案为②③④.【点评】本题考查相似三角形的判定和性质、解直角三角形、锐角三角函数、垂径定理、勾股定理等知识,解题的关键是学会添加常用辅助线,构造相似三角形解决问题.18.【分析】如图作CH ∥BD ,使得CH =EF =2,连接AH 交BD 由F ,则△CEF 的周长最小.【解答】解:如图作CH ∥BD ,使得CH =EF =2,连接AH 交BD 由F ,则△CEF 的周长最小.∵CH =EF ,CH ∥EF ,∴四边形EFHC 是平行四边形,∴EC =FH ,∵FA =FC ,∴EC +CF =FH +AF =AH ,∵四边形ABCD 是正方形,∴AC ⊥BD ,∵CH ∥DB ,∴AC⊥CH,∴∠ACH=90°,在Rt△ACH中,AH==4,∴△EFC的周长的最小值=2+4,故答案为2+4.【点评】本题考查轴对称﹣最短问题,正方形的性质、勾股定理、平行四边形的判定和性质等知识,解题的关键是学会利用轴对称解决最短问题,属于中考常考题型.三.解答题19.【分析】(1)根据零指数幂,二次根式的性质,负整数指数幂,特殊角的三角函数值分别求出每一部分的值,再算加减即可;(2)先求出每个不等式的解集,再求出不等式组的解集即可.【解答】解:(1)原式=1﹣4﹣1+=﹣﹣4+1=﹣3;(2)∵解不等式①得:x≥3,解不等式②得:x<4,∴不等式组的解集是3≤x<4.【点评】本题考查了零指数幂,二次根式的性质,负整数指数幂,特殊角的三角函数值,解一元一次不等式组等知识点,能求出每部分的值是解(1)的关键,能根据不等式的解集求出不等式组的解集是解(2)的关键.20.【分析】将原式括号中各项通分并利用同分母分式的减法法则计算,整理后再利用平方差公式分解因式,然后利用除以一个数等于乘以这个数的倒数将除法运算化为乘法运算,约分得到最简结果,即可得到原式的值.【解答】解:÷(x+1﹣)=÷[﹣]=÷=×=当x=﹣2时,原式==.【点评】此题考查了分式的化简求值,分式的加减运算关键是通分,通分的关键是找最简公分母;分式的乘除运算关键是约分,约分的关键是找出公因式,约分时,分式的分子分母出现多项式,应将多项式分解因式后再约分.21.【分析】(1)依据A组或E组数据,即可得到样本容量,进而得出m的值;(2)利用圆心角计算公式,即可得到E组所在扇形的圆心角;(3)依据家庭年文化教育消费10000元以上的家庭所占的比例,即可得到家庭年文化教育消费10000元以上的家庭的数量.【解答】解:(1)本次被调查的家庭有:36÷24%=150,m=150﹣36﹣27﹣15﹣30=42,故答案为:150,42;(2)E组所在扇形的圆心角为360°×20%=72°;(3)年文化教育消费10000元以上的家庭有2500×=1200(户).【点评】本题考查扇形统计图、用样本估计总体以及中位数的运用,解题的关键是明确题意,找出所求问题需要的条件,利用数形结合的思想解答问题.22.【分析】(1)直接利用必然事件以及怒不可能事件的定义分别分析得出答案;(2)直接利用概率公式求出答案;(3)首先画出树状图,进而利用概率公式求出答案.【解答】解:(1)“从中任意抽取1个球不是红球就是白球”是必然事件,“从中任意抽取1个球是黑球”是不可能事件;故答案为:必然,不可能;(2)从中任意抽取1个球恰好是红球的概率是:;故答案为:;(3)如图所示:,由树状图可得:一共有20种可能,两球同色的有8种情况,故选择甲的概率为:=;则选择乙的概率为:,故此游戏不公平.【点评】此题主要考查了游戏公平性,正确列出树状图是解题关键.23.【分析】(1)由∠ABG=2∠C.可得△ABC是等腰三角形,且BE⊥AC可得AE=CE,根据中位线定理可得OE∥AB,且AB⊥EG可得OE⊥EG,即可证EG是⊙O的切线(2)根据三角函数求BE,CE的长,再用勾股定理求BC的长即可求半径的长.【解答】证明(1)如图:连接OE,BE∵∠ABG=2∠C,∠ABG=∠C+∠A∴∠C=∠A∴BC=AB,∵BC是直径∴∠CEB=90°,且AB=BC∴CE=AE,且CO=OB∴OE∥AB∵GE⊥AB∴EG⊥OE,且OE是半径∴EG是⊙O的切线(2)∵AC=8,∴CE=AE=4∵tan∠C==∴BE=2∴BC==2∴CO=即⊙O半径为【点评】本题考查了切线的性质和判定,勾股定理,关键是灵活运用切线的判定解决问题.24.【分析】设B车行驶的时间为t小时,则A车行驶的时间为1.4t小时,根据平均速度=路程÷时间结合A车的平均速度比B车的平均速度慢80km/h,即可得出关于t的分式方程,解之经检验后即可得出结论.【解答】解:设A车的平均速度为xkm/h,则B车的平均速度为(x+80)km/h,根据题意得:=(1+40%),解得:x=200,经检验,x=200是原分式方程的解,且符合题意,则A车行驶的时间为=3.5(小时),B车行驶的时间为=2.5(小时).答:A车的平均速度为200km/h,则B车的平均速度为280km/h.故答案为3.5小时,2.5小时.【点评】本题考查了分式方程的应用,找准等量关系,正确列出分式方程是解题的关键.25.【分析】(1)利用平行四边形准菱形的意义即可得出结论;(2)先判断出∠AEB=∠ABE,进而判断出AE=BF,即可得出结论.【解答】解:(1)如图1,利用邻边长分别为4和7的平行四边形进行4次操作,所剩四边形是边长为1的菱形,故邻边长分别为4和7的平行四边形是4阶准菱形:如图2,∵b=3r,∴a=7b+r=21r+r=7×3r+r,利用邻边长分别为22r和3r的平行四边形进行7+2=9次操作,所剩四边形是边长为1的菱形,故邻边长分别为22r和3r的平行四边形是9阶准菱形:故答案为:4,9;(2)由折叠知:∠ABE=∠FBE,AB=BF,∵四边形ABCD是平行四边形,∴AE∥BF,∴∠AEB=∠FBE,∴∠AEB=∠ABE,∴AE=AB,∴AE=BF,∴四边形ABFE是平行四边形,∴四边形ABFE是菱形.【点评】此题是四边形综合题,主要考查了平行四边形的性质,菱形的性质和判定,以及平行四边形的准菱形的理解和应用,解(1)的关键是理解准菱形的意义,解(2)的关键是掌握判断菱形的方法,是一道中考常考题.26.【分析】(1)过P作PC⊥AB交AB于C,根据三角函数的定义即可得到结论;(2)根据三角函数的定义得到AC=AP•sin53°=50×0.8=40海里,BC=PB=10,于是得到结论.【解答】解:(1)过P作PC⊥AB交AB于C,在Rt△APC中,∠C=90°,∠APC=53°,AP=50海里,∴PC=AP•cos53°=50×0.60=30海里,在Rt△PBC中,∵PB=20,PC=30,∴cos∠BPC==,∴∠BPC=30°,∴船B在灯塔P的南偏东30°的方向上;(2)∵AC=AP•sin53°=50×0.8=40海里,BC=PB=10,∴AB=AC﹣BC=(40﹣10)海里,答:两船相距(40﹣10)海里.【点评】本题考查了解直角三角形的应用,解答本题的关键是理解方位角的定义,能利用三角函数值计算有关线段,难度一般.27.【分析】(1)根据题意和表格中的数据可以求得p与x,W与x之间的函数关系式,并注明自变量x的取值范围:(2)根据题意和题目中的函数表达式可以解答本题;(3)根据(2)中的结果和不等式的性质可以解答本题.【解答】解:(1)设p与x之间的函数关系式为p=kx+b,,解得,,即p与x的函数关系式为p=0.5x+7(1≤x≤15,x为整数),当1≤x<10时,W=[20﹣(0.5x+7)](2x+20)=﹣x2+16x+260,当10≤x≤15时,W=[20﹣(0.5x+7)]×40=﹣20x+520,即W=;(2)当1≤x<10时,W=﹣x2+16x+260=﹣(x﹣8)2+324,∴当x=8时,W取得最大值,此时W=324,当10≤x≤15时,W=﹣20x+520,∴当x=10时,W取得最大值,此时W=320,∵324>320,∴李师傅第8天创造的利润最大,最大利润是324元;(3)当1≤x<10时,令﹣x2+16x+260=299,得x1=3,x2=13,当W>299时,3<x<13,∵1≤x<10,∴3<x<10,当10≤x≤15时,令W=﹣20x+520>299,得x<11.05,∴10≤x≤11,由上可得,李师傅获得奖金的天数是第4天到第11天,李师傅共获得奖金为:20×(11﹣3)=160(元),即李师傅共可获得160元奖金.【点评】本题考查二次函数的应用、一元二次方程的应用,解不等式,解答本题的关键是明确题意,找出所求问题需要的条件,利用二次函数的性质解答.28.【分析】(1)代入已知点坐标,应用待定系数法求解便可.(2)分别以已知线段AC为边、为对角线,找到所有的点F,利用平移的思路求点F的坐标.(3)根据三角形的面积求得点P的坐标,将PQ+QB转换为共线线段,用三角函数求得相关的线段长度.【解答】解:(1)∵抛物线y=﹣x2+bx+c与x轴交于A(﹣1,0)和B(3,0),∴,解得,,∴抛物线的解析式为:y=;(2)存在,分三种情况讨论,①如图1所示,∵四边形ACEF为平行四边形,∴EF可由AC平移得到,C、E为对应点,A、F为对应点,∵C(0,),点E的横坐标为1,∴向右平移了一个单位,∵A(﹣1,0),∴F的横坐标为0,∵直线AD的解析式为y=x+,∴当x=0时,y=,∴F(0,).②如图2所示,此时点F与点D重合,∴F(2,).③如图3所示,根据平移的规律,得知点F的横坐标为﹣2,当x=﹣2时,y=﹣,∴F(﹣2,﹣).综上所述:点F的坐标为(0,)或(2,)或(﹣2,﹣).(3)如图4所示,过点B作AD的平行线交抛物线的对称轴于点N,过点P作PH垂直于BN,与x轴的交点即为点Q,设直线BN的解析式为y=x+b,过点B(3,0),解得b=﹣,∴直线BN的解析式为y=x﹣,∵抛物线的对称轴为直线x=1,∴N(1,﹣1),设直线AD与抛物线的对称轴的交点为点M,∴M(1,1),∵S=PM•(x D﹣x A)•=3,△ADP∴PM=2,∴P(1,3),∵tan∠ABN=,∴QB=QH,∴PQ+QB=PQ+QH,∴当P、Q、H三点共线时,PQ+QB最小,即为PH,∵PN=4,∠NPH=∠ABN,∴PH=.∴PQ+QB的最小值为.【点评】此题考查了待定系数法求函数解析式,平行四边形与二次函数的结合,线段的和差最值与二次函数的结合,将不共线的线段转化为共线为解题关键.。
2019年扬州树人学校九年级第一次模拟考试
扬州树人学校九年级第一次模拟考试(满分120分;考试时间100分钟)说明:1.本试卷分第I卷和第II卷两部分2.答题前,考生务必将本人的姓名、准考证号填写在答题卡相应的位置上。
3.选择题每小题选出答案后,请用2B铅笔在答题卡指定区域填涂,如需改动,用橡皮擦干诤后,再填涂其它答案。
非选择题请用0.5毫米的黑色签字笔在答题卡指定区域作答,在试卷或草稿纸上作答一律无效。
考试结束后,请将答题卡交回。
第I卷选择题(60分)一、单项选择(共15小题每小题1分,共计15分)在下列各题A、8、C、D四个选项中选择一个能填入题干空白处的最佳答案。
1. As we all know, China is __________ Asian country and Britain is__________ European country.A.an anB. a, aC. a; anD. an; a2.—Can’t you see the kid looking__________his mother’s shoulder at the dancing birds again. —Em,that’s what children are like.A.acrossB. beyondC. towardsD. through3. The photo which has won the first prize has a great__________ of colour, content and feelings.A. advantageB. backgroundC. balancendscape4.—Did you enjoy the film yesterday?—No,not at all! I was__________ blind because I left my glasses at home.A so good as B. as well as C. as good as D. so well as5.—How do you get on with the English novel?—I've no idea. I__________ only half of it, and I will try to finish it at the weekend.A. readB. am readingC. have readD. will read6. In the song I Bet My Life, the US rock band Imagine Dragons tells people not to__________ catching their dreams.A. give outB. give offC. give inD. give up7. This dress still looks pretty on you,__________ it is out of style.A. butB.thoughC. sinceD. unless8. —Tom’s seldom asked to do housework at home,__________ he?—__________ .His parents are very busy with their work so he has to do some cleaning everyday.A. has; YesB. hasn't ;NoC. is; Yes ;'.D. isn't;No9. —Do you know__________ 'the meeting will last?—__________ the agreement is reached, I suppose.A.how long Not untilB. when Not untilC. how long;UntilD.when;Until10.—You have been to Yangzhou recently.What do you think of this city?—I like it very much,and I think it is the most beautiful place __________ I have ever been to.A. whichB. thatC. whatD. who11.An explosion(爆炸) happened in Xiangshui, Yanchen last week.People wondered__________ .A.that why it happened.B.how did the government helps solve the problem.C.what caused the terrible accidentD.how many people are killed in the accident12.Life is about waiting for the right moment__________because everyone is in his own TIME ZONE.A.actB.actingC.actsD.to act13.—Lily,I know you’re confident about getting this job, but remember “_________”So why not send your application form to a few more companies? -Sounds good.A. don't put your eggs in one basketB. the early bird catches the wormC. actions speak louder than wordsD. something is better than nothing14. —Need I finish my homework today, Mum?—__________.You will be busy and have no time to do it tomorrow.A. Yes, you needB. Yes, you mustC. Yes, you have toD.No,you needn't.15.—I love the Internet. I’ve come to know many friends on the Net.—__________.Few of them would become your real friends.A.I can't agree moreB. ľm pleased to know thatC. Never mindD. That's not the case二、完形填空(共15小题;每小题1分,计15分)阅读短文,从每题所给选项中选出可以填入空白处的最佳选项。
初中-语文-中考-江苏扬州树人学校九年级第一次模拟考试语文试卷
江苏扬州树人学校九年级第一次模拟考试语文试卷(时间:150分钟;满分:150分)注意:所有试题都必须在“答题纸”上作答,在试卷或草稿纸上答题无效。
一、积累与运用。
(28分)1、综合性学习。
宅家无聊,你观看了1月26日晚上《经典咏流传》第三季首期节目。
这一期节目中,有那英、肖战等jiā()宾,冯家妹与陈果毅的出现感到陌生。
但他们演唱的《草》,却感动了亿万观众。
陈果毅是“脊髓型肌wěi()缩症”(SMA)患者,16个月大的时候就被确诊。
他的肺活量仅为其他孩子的五分之一,但却从没放弃过唱歌。
冯家妹的女儿也因此病症去世,四年来她一直致力于为SMA群体发声。
《草》的词作者包珍妮也是一位SMA患者。
“如果你的一生已经注定,你还会努力生活吗?”节目播放的小片里,包珍妮用轻快的语调讲述自己的故事。
曾被医生预言活不过4岁的包珍妮,凭借坚韧的毅力,奇迹般地度过了19年。
仅有56斤重的包珍妮凭借一台24小时不间断运作的呼吸机和唯一能动的右手大拇指,创作了许多闪着光芒的文学作品。
(1)给下列两个字注音:髓()韧()(2)根据拼音写出汉字:jiā()wěi()(3)以下解释正确的一项是()A. 冯家妹与陈果毅的出现感到陌生。
分析:这个句子没有语病。
B. “如果你的一生已经注定,你还会努力生活吗?”分析:这是一个条件复句。
C. 仅有56斤重的包珍妮凭借一台24小时不间断运作的呼吸机和唯一能动的右手大拇指,创作了许多闪着光芒的文学作品。
分析:这个句子的主干为“包珍妮创作了文学作品”。
D. 歌、草、果、拇分析:这四个字造字法相同。
2、停课不停学,你为九年级下语文书编写了卷首语。
【卷首语】(一)书中自有体裁丰翻开九年级下语文书,你会被现代诗歌的魅力吸引——A舒婷的《祖国啊,我亲爱的祖国》里有强烈的爱国之情和历史责任感;你会被小说的情节打动——B鲁迅笔下的“孔乙己”可怜、可笑又可悲,小说揭露了科举制度对知识分子精神的毒害;你会被史学作品的厚重感染——C国别体史书《战国策》中唐雎和编年体史书《史记》里陈胜,他们都有勇有谋,用自己的方式反抗暴秦;你会被戏剧的魅力折服——D话剧《屈原》里“风”“雷”“电”具有象征意义,剧中大量的心理独白展现了屈原内心对黑暗的愤激、对光明的礼赞、对昏庸当权的抨击。
江苏省扬州市树人学校2019年中考语文第一次模拟试卷
江苏省扬州市树人学校2019年中考语文第一次模拟试卷一、积累与运用(38 分)1.下列词语中加点字读音完全正确的一项是()(2 分)A.蝉蜕(tuì)倏忽(shū)殷红(yīn)鲜为人知(xiǎn)B.天堑(zhàn)褐色(hè)澎湃(bài)精神抖擞(sǒu)C.镌刻(juān)精髓(suǐ)逞能(chěnɡ)杳无音讯(yǎo)D.绯红(fěi)休憩(qī)跌宕(dànɡ)万恶不赦(shè)2.下列各句中加点成语使用正确的一句是()(2 分)A.扬州是一座迷人的城市,深厚的文化底蕴,领先的现代科技,既各显其美,又相得益彰。
....B.晚会上,梧州市粤剧名家潘楚华将成名作《女马》唱得字正腔圆,令观众刮目相看。
.....C.白居易在地方为官时很注意接近民众,不管是乡间衣妇还是下里巴人,他都能谈得来,从他们那里得到....了很多创作素材。
D.这些年轻的科学家以无所不为的勇气,克服重重困难,去探索大自然的奥秘。
....3.下列句子中没有语病的一项是()(2 分)A.为营造扬州学茶、懂茶、爱茶,扬州“陆羽茶堂”将开展茶文化“进机关”的活动。
B.经过阿富汗和伊拉克两次战争,使美国得出无须依靠大型军事基地也可以打赢一场战争的结论。
C.谁如果要鉴赏我国的园林,感受园林艺术的内在美,苏州园林却不该错过。
D.增强法律意识,提高自我保护能力,是青少年健康成长的需要。
4.下列解说正确的一项是()(2 分)A.标语藤萝话题热词解说:这四个词的词性相同B.七零八落亲密无间聚族而居高热病症解说:这四个短语的结构类型相同。
C.母亲那种勤劳俭朴的习惯,母亲那种宽厚仁慈的态度,至今还在我心中留有深刻的印象。
解说:这句话的主干是:习惯、态度在我心中。
D.近 4 万字的文学理论巨著“文心雕龙”,是用正楷书法写出来的,这样的“壮举”是由扬州书法家储国天刚刚完成的。
解说:该项标点符号使用正确。
江苏省扬州中学教育集团树人学校2019-2020学年九年级第一次模拟考试试卷(Word无答案)
扬州树人学校九年级第一次模拟考试物理试卷(满分:100 分时间:100 分钟)一、单选题(本题共12 小题,每小题2 分,共24 分,每小题只有一个正确选项)1.下列估测结果符合实际的是()A.六月份扬州的平均气温约为50℃B.家用LED 节能灯的电功率约为200W C.中学生课桌的高度约为80mm D.一枚1 元人民币硬币的质量大约6g 2.关于声现象,下列说法正确的是()A.声音能在真空中传播B.根据响度能分辨不同乐器的声音C.声音是由于物体振动产生的D.“禁鸣喇叭“是在人耳处控制噪声3.图中密封的锤形玻璃泡内装有少量碘颗粒,为了能较快地观察到碘的升华现象又要防止碘熔化,下列加热方式合适的是(碘的熔点为113.7℃,酒精灯外焰温度约800℃)()A.放入冰水混合物中B.用酒精灯外焰加热C.浸入开水中D.置于常温下的空气中4.如图所示,在微型电扇的插头处接一个发光二极管,用手旋转叶片,观察到发光二极管发光了。
下图中与这个实验原理相同的是()A B C D 5.关于粒子和宇宙,下列说法正确的是()A.固体、液体很难被压缩,说明分子间存在排斥力B.杨絮漫天飞舞,说明分子在做永不停息的无规则运动C.电子、原子、原子核是按照由小到大的尺度排序的D.“地心说”提出太阳是宇宙的中心6.物理学中用光线表示光的传播路径和方向,下列做法应用了同种研究方法的是()A.通过水流来初步认识电流B.用磁感线来形象直观的描述磁场C.探究小车动能大小的影响因素时,通过木块被撞后移动的距离来比较小车动能的大小D.探究压力大小对滑动摩擦力大小的影响时,控制接触面的粗糙程度等因素不变7.关于家庭电路和安全用电,下列说法正确的是()A.保险丝烧断一定是发生了短路B.只有220V 电压才能引起人触电C.开关一定要接在零线上D.家用电器的金属外壳一定要接地8.甲、乙两个轻质小球相互排斥,把带负电的橡胶棒靠近甲球时,甲球与橡胶棒相互吸引,则乙球()A.一定带正电B.可能带负电,可能不带电C.一定带负电D.可能带正电,可能不带电9.著名的“木桶理论”:是指用木桶来装水,若制作木桶的木板参差不齐,那么它能盛下水的容量,不是由这个木桶中最长的木板来决定的,而是由最短的木板来决定,所以它又被称为“短板效应”。
扬州树人学校九年级第一次模拟考试
注意事项:扬州树人学校九年级第一次模拟考试物理试卷2018.31.本试卷满分 100 分,考试用时 100 分钟。
2.考生答题必须在答题卡上,答在试卷和草稿纸上一律无效。
一、选择题(本题共 12 小题,每小题 2 分,共 24 分。
请选出唯一正确的答案) 1.下列数据中,最接近实际情况的是 A .人的步行速度约为 10m/s B .9 年级物理课本的质量约为 3kg C .人体的密度约为 1.0g/cm 3D .教室日光灯工作时通过灯丝的电流约为10A2.小红同学喜欢利用复读机进行英语听力训练,在音量不变的情况下,如果先正常播放一 段录音,再快速播放同一段录音,则复读机发出声音的 A .响 度增大,音调不变 B .响度减小,音调不变 C .响度不变,音调降低D .响度不变,音调升高3.下列相关“热现象”,对其解释不正确的是A .冬天,窗户玻璃上出现“冰花”,这是水蒸气凝固产生的B .寒冷的冬天,室外冰冻的衣服也能变干,这是升华现象C .游泳后,刚从水中出来,感觉比较冷,这是因为水汽化吸热D .冰箱中取出一瓶冰红茶,过一会儿,瓶的外表附着一层小水珠,这是液化现象 4.关于透镜的应用,下列说法正确的是 A .近视眼镜利用了凹透镜对光的会聚作用 B .照相时,景物在镜头二倍焦距以外C .投影仪利用凸透镜成正立放大的实像D .借助放大镜看地图时,地图到放大镜的距离应大于一倍焦距5.如图所示,叠放在一起的物体 A 和 B ,在大小为 F 的恒力作用下沿水平面做匀速直线运动,则下列结论中正确的是A .甲、乙两图中 A 物体所受的摩擦力大小均为 FB .甲、乙两图中 B 物体受到地面对它的摩擦力均为 FC .甲图中物体 A 受到的摩擦力为 0,物体 B 受到地面对它的摩擦力为 FD .乙图中物体 A 受到的摩擦力为 F ,物体 B 受到地面对它的摩擦力为 F6.在探究物质结构的过程中,卢瑟福建立了原子的核式结构模型。
2019年扬州中学教育集团树人学校九年级下学期第一次模拟考试(无答案)
2019扬州树人学校九年级第一次模拟试卷一选择题1.下列数据中符合实际情况的是()A.普通教室楼层的高度是6mB.扬州四月份的平均凭温约为5 ℃C.1元硬币的质量约为50mgD.家用电扇的额定功率约为50W2.下列四幅图片与其对应的说法,正确的是()A.甲图中通过改变尺子伸出桌面的长度,可以探究响度与振幅的关系B.乙图中两列声波的音色相同C.丙图中“GPS导航”是利用超声波传递信息的D.丁图中通过改变杯中的水量,可以探究音调与频率的关系3.下图是课本中的四个实验,哪个实验与其他三个实验的物理思想方法不同()4.国外科研人员设计了一种“能量采集船”,如图所示,在船的两侧附着可触及水面的旋转“工作臂”,每只“工作臂”的底端装有一只手掌状的、紧贴水面的浮标。
当波浪引起浮标上下浮动时,工作臂就前后移动,获得电能储存起来。
下列电器设备与“能量采集船”获得能量原理相同的是()5.为救治病人,急需将一种药品送到偏远乡村,药品要求在0℃以下存放,医疗队临时制作了一个简易冷藏箱(如图),下列关于冷藏箱的说法正确的是()A.包装盒的外壳要用密度较大的材料B.包装盒要用导热效果较好的材料C.比较而言,冷藏盒中使用的冰块,使用盐水制作的好于清水D.冰块应放在图中甲容器中6.小明做实验时,将电路连接成如图所示的情景,若要将导线M、N与ABCD四个接线柱中任意两个连接,使两灯构成并联,且开关闭合后电压表指针正常偏转,共有几种接法()A.两种 B.四种 C.六种 D.八种7.如图所示,小东用力推放在水平地面上的木箱,木箱静止不动,下列说法正确的是()A. 木箱对地面的压力与地面对木箱的支持力是一对平衡力B. 木箱没有动,是因为推力小于摩擦力C. 小东推木箱的过程中,木箱的运动状态没有改变D. 小东推木箱的过程中,木箱的惯性变大8.如图所示,在“研究充水玻璃管中气泡的运动规律”实验中()A.研究的气泡在水中运动是自上而下的B.为了便于测量,应使气泡在管内运动得快一些C.本实验也可将玻璃管保持一定倾角放置D.若仅测得气泡在管内运动的全部路程和时间,则可以判断气泡运动为匀速运动9.如图是研究电流通过导体产生的热量与哪些因素有关的实验,下列分析正确的是()A.甲、乙两次实验都应用了控制变量法B.甲实验通电一段时间后,左侧容器内空气吸收的热量更多C.乙实验是为了研究电流产生的热量与电阻的关系D.乙实验通电一段时间后,右侧U形管中液面的高度差比左侧的大10.小明家新购住房刚装修完毕,家中部分照明电路如图所示。
扬州树人学校九年级第一次模拟考试化学试卷2019.3
扬州树人学校九年级第一次模拟考试化学试卷2019.3(满分:100分;考试时间:100分钟)可能用到的相对原子质量: H:1 C:12 N:14 O:16 S:32 I:127第I卷(选择题共40分)一、单项选择题(本题包括15小题,每小题只有一个选项符合题意,每小题2分,共30分。
)1.下列变化中属于物理变化的是A.风力发电 B.菜刀生锈C.食品变质D.汽油燃烧2.下列清洁用品中酸性最强的是A.炉具清洁剂pH=13 B.肥皂Ph=10 C.牙膏pH=8 D.厕所清洁剂pH=1 3.下列物质溶于水时,溶液温度明显降低的是A.氯化钠 B.硝酸铵 C.浓硫酸 D.氢氧化钠4.下列实验操作正确的是5.青蒿素(C15H22O5)是一种治疗疟疾的特效药。
下列关于青蒿素的说法不正确的是A.属于有机物B.相对分子质量282C.一个分子含有44个原子D.由三种元素组成6.以下是伦伦同学总结的化学知识,有错误的是A.干冰不是冰 B.水银不是银 C.纯碱不是碱 D.食盐不是盐7.下列物质能与稀硫酸发生中和反应的是A.氧化铜 B.碳酸锌 C.氢氧化钡 D.镁条8.某化学反应的微观示意图为:(、代表不同原子),关于该反应的说法正确的是A.涉及到五种物质 B.分子的种类不变C.属于复分解反应 D.原子的种类不变9.下列标志属于物品回收标志的是10.下列实验现象描述正确的是A.将红热铁丝插入氧气中,火星四射,放出大量的热,生成黑色固体B.硫酸铜与氢氧化钠溶液混合,产生白色沉淀C.充分加热碳酸氢铵固体,生成了二氧化碳、水和氨气D.“铜绿”与盐酸混合,产生大量气泡,同时得到无色溶液11.下列属于置换反应的是A.制漂白粉2Cl2+2Ca(OH)2===CaCl2+Ca(ClO)2+2H2OB.高炉炼铁3CO+Fe2O3 2Fe+3CO2C.潜艇供氧2Na2O2+2H2O===4NaOH+O2↑D.焊接铁轨2Al+Fe2O3 2Fe+Al20312.下列物质鉴别方法可行的是A.肥皂水鉴别澄清石灰水与蒸馏水B.酚酞试液鉴别硫酸钠溶液与稀硫酸C.燃着的木条鉴别N2与CO2D.品尝的方法鉴别工业盐与食用盐13.已知2FeS04 +6Na202===2X+2Na20+2Na2S04+O2↑,生成物X的化学式为A.Na2Fe04 B.Na2Fe2O3 C.NaFe204 D.Na2Fe0314.扬州推广“LED”绿色节能光源。
英语_2019年江苏省扬州市扬州中学教育集团树人学校中考一模英语试题(含答案)
2019年江苏省扬州市扬州中学教育集团树人学校中考一模英语试题一、单选题1. As we all know, China is _____Asian country and Britain is______ European country.A an; anB a; aC a; anD an; a2. —Can’t you see the kid looking _______ his mother’s shoulder at the dancing birds again?—Em, that’s what children are like.A acrossB beyondC towardsD through3. The photo which has won the first prize has a great ________ of color, content and feelings.A advantageB backgroundC balanceD landscape4. —Did you enjoy the film yesterday?—No, not at all! I was_____blind because I left my glasses at home.A so good asB as well asC as good asD so well as5. —How do you get on with the English novel?—I've no idea. I only half of it, and I’ll try to finish it at the weekend.A readB am readingC have readD will read6. In the song I Bet My Life, the US rock band Imagine Dragons tells people not to_____catching their dreams.A give outB give offC give inD give up7. This dress still looks pretty on you, _______ it is out of style.A butB thoughC sinceD unless8. —Tom’s seldom asked to do housework at home, _____ he?— _____. His parents are very busy with their work, so he has to do some cleaning every day.A has; YesB hasn’t; NoC is; YesD isn’t; No9. —Do you know______ the meeting will last?— ______ the agreement is reached, I suppose.A how long; Not untilB when; Not untilC how long; UntilD when; Until10. —You have been to Yangzhou recently. What do you think of this city?— I like it very much, and I think it is the most beautiful place ____ I have ever been to.A whichB thatC whereD who11. An explosion(爆炸)happened in Xiangshui, Yancheng last week. People wondered _____.A that why it happenedB how did the government help solve the problemC what caused the terrible accidentD how many people are killed in the accident12. Life is about waiting for the right moment_____, because everyone is in his own TIME ZONE.A actingB to actC actD acts13. —Lily, I know you're confident about getting that job, but remember "________". So why not send your application forms to a few more companies?—Sounds good.A Don't put all your eggs in one basketB The early bird catches the wormC Actions speak louder than wordsD Something is better than nothing14. — Need I finish my homework today, Mum?— _____. You will be busy and have no time to it tomorrow.A Yes, you needB Yes, you mustC Yes, you have toD No, you needn’t15. —I love the Internet. I’ve come to know many friends on the net.— _____. Few of them would become your real friends.A I can’t agree moreB I’m pleased to know thatC Never mindD That’s not the case二、完型填空16. More than 95 percent of people in the world have phones, today, according to the United Nations. People use _______to make phone calls and send messages to communicate with others. Now we _______ write letters. But a TV show, Letters Alive(《见字如面》),is_______back this old habit.Letters Alive gets its _______ from a UK program with a similar name. They have something in common. The shows both invite famous actors and actresses, _______ there are no funny jokes or different competitions. Instead, it is just one person reading a letter. Since it has been on in December, Letters Alive has been _______praised.The letters were written by people from different_______in history. For example, once they read a letter written by famous writer Xiao Hong to her brother who is younger than her in 1941.The letter shows that Xiao Hong _______ her brother so much and had great hopes for his future.“Every letter opens_______world for us” said Guan Zhengwen, the director of the TV show. It seems that we can __________the real lives and feelings of the writers. __________, many people said that it has provided a breath of fresh air to today’s TV.Apart from letters alive, some other __________TV shows have also been accepted by Chinese audiences. They __________Chinese Poetry Conference《中国诗词大会》, a classical Chinese poetry competition, and Readers, a program that__________people to read poems and articles they like or wrote. “This means that ou r audiences not only looking for entertainment like gossip(八卦)and eye catching games,” reported China Daily. Cultural __________and true feelings are the keys to winning praise.(1)A computersB TVsC radiosD phones(2)A oftenB alwaysC hardlyD never(3)A returningB gettingC bringingD taking(4)A ideaB bookC letterD news(5)A andB butC becauseD or(6)A wildlyB carefullyC clearlyD widely(7)A gradesB timesC classesD families(8)A thoughtB treatedC missedD praised(9)A the otherB otherC othersD another(10)A makeB passC experienceD get(11)A AnywayB ButC OtherwiseD So(12)A traditionalB culturalC fashionableD humorous(13)A includeB haveC sayD report(14)A inviteB invitingC invitedD invites(15)A priceB costC valuesD worth三、阅读单选17. TYPINGThis course is for those who want to learn to type, as well as those who wantto improve their taping.The course is not common.You are tested in the firstclass and begin practicing at one of eight different skill levels.This allows you to learn at your own speed.Each program lasts 20hours.Bring your own paper. Course fee(费用): ﹩125 Materials: ﹩25Two hours each evening for two weeks.New classes begin every two weeks.This course is taught by a number of professional business education teachers who have successfully taught typing courses before.UNDERSTANDING COMPUTERSThis twelve﹣hour course is for people who do not know very much aboutcomputers, but who need to learn about them You will learn what computers are,what they can and can't do and how to use them.Course fee: ﹩75Jan.4, 7, 11, 14, 18Wed.&Sat.9: 00﹣11: 30a.m.Equipmentfee: 10David is a professor of Computer Science at Beijing University.He has overtwenty years of experience in the computer field.STOP SMOKINGDo you want to stop smoking? Have you already tried to stop and failed? Nowis the time to stop smoking using the latest methods.You can stop smoking, andthis twelve﹣hour course will help you do it.Course fee: ﹩30 Jan.2, 9, 16, 23Mon.2: 00﹣5: 00p.m.DrJohnisapracticingpsychologistwhohashelpedhundredsofpeoplestopsmoking.(1)If you choose the UNDERSTANDING COMPUTERS course,you will haveclasses________.A.fromMondaytoSundayB onWednesdayandSaturday.C onSaturdayandSunday.(2)How long will the STOP SMOKING courselast?________A Forfourweeks.B Forthreehours.C Foraweek.(3)Mr.Black works every morning and evening,but he wants to take part in one of the three courses.What is suitable for him?________A TYPING.B UNDERSTANDINGCOMPUTERS.C STOPSMOKING.(4)If you want to learn about computers and at the same time you want to improve your typing,how much will you pay for it?________(5) B.﹩150. C.﹩235.70.What's the special difference between the TYPING course and the other two?________A People with different skill levels may learn at different speed.B You will take a test after the course.C You will pay less money.18. Back in Venice, there was one very angry moneylender. When he discovered his daughter, Jessica, had run away and taken money and jewels with her, he was furious. Hetried to find her, Bassanio and Graziano were on the ship, and it had started to sail. Shylock wanted to stop the ship.He thought Jessica and Lorenzo might be on it, but it was too late. The ship had already gone. Antonio told Shylock that his daughter and her lover were not on it. Someone said they had gone away on a smaller boat, but nobody really knew where they were.Shylock ran through the streets of Venice looking f or them. “My money, my daughter, my jewels!” he shouted. “My jewels, my daughter, my money! My daughter stole my money! She stole my jewels! She ran away with a Christian! I must find them!”All the little boys in Venice followed him and shouted “My jewels, my daughter, my money!” Solanio heard them. He thought, “Antonio better pay his debt on time, or he will pay for this.” Shylock is very angry. He will ______if he can.Far, far away from Venice, in the sea between England and France, there was a big storm. A strong wind blew a heavy ship against the rocks. The ship and its eargo sank. Salerio was thefirst person in Venice to hear the news, when he met a Frenchman in a hotel. He hoped that it was not one of Antonio’s ships.(1)The author of the passage above is ________.A William ShakespeareB Charles DickensC Frances hodgson BurnettD Lewis Carroll(2)The underlined word “this” in Pra.4 means________.A his jewelsB his daughterC his moneyD all above(3)Which is the most suitable to fill in the blank in Pra.4?A take revengeB regret itC forgive himD feel excited(4)Why did Salerio hope that it was not one of Antonio’s ship?A Because he knew that Antonio would be angry when he found out what had happened.B Because Shylock might have find out that Antonio helped. Jessica and Lorenzo.C Because Antonio would have no money to pay his debt ontime. D Because he hated Antonio.19. Do you know the word kiasu? If not, then be kiasu and google it. You'll get more thana million hits and learn that, usually associated (联系) with Singaporeans, it means "to be afraid of losing out". You'll come across words such as kiasu parents, kiasu companies and even kiasu apps.Just 40 years ago, the word first spread among men in the Singapore army. But before long, it had entered everyday Singapore English.The first formal use of kiasu happened in 1990in a government document (公文). Since then it has often been seen in Singapore newspapers. It spread to some other countries in southeast Asia, too. In 1992, Malaysia's New Straits Times wrote of "kiasu parents providing their children with much more materials than necessary".Ten years after its first use in print, the word was used worldwide. Since around 2000, kiasu has appeared in British newspapers. The Guardian, in 2001, reported how "this ________ of material wealth and the strong need to be No.1has created the Singaporean we hear so much about﹣﹣﹣the kiasu Singaporean", and again reported in 2004that Singaporeans' value shows how much they feel the need to stay ahead of everyone else and that they have a word for it: kiasu.The word entered the Urban Dictionary in 2003and the Oxford English Dictionary in 2007.In the the same year, Singaporean restaurant Kiasu opened in London.The turning point on kiasu's road to the mainstream came with its being used in documents and newspapers. Who dared to use kiasu in a government document? Who first used it in a newspaper? It was these people who pushed kiasu into the mainstream.(1)What is the passage mainly about?________A How to use the word kiasu.B What the word kiasu means.C The history of the word kiasu.D The importance of the word kiasu.(2)What marked the wide use of the word kiasu around the world?________A Its appearance in British papers.B Its use as the name of a restaurant.C Its acceptance by a key document.D Its description in Singapore newspapers.(3)What does the underlined word "pursuit" in Paragraph 4 mean?________A the act of looking for.B the act of looking out.C the act of givingup. D the act of giving out.20. He's an old cobbler(修鞋匠) with a shop in the Marais, a historic area in Paris. When I took him my shoes, he at first to ld me:"I haven't time. Take them to the other fellow on the main street; he'll fix them for you right a way."But I'd had my eye on his shop for a long time. Just looking at his bench loaded with tools a nd pieces of leather, I knew he was a skilled craftsman(手艺人). "No," I replied,"the other fellow can't do it well.""The other fellow" was one of those shopkeepers who fix shoes and make keys "while-U-wait"—without knowing much about mending shoes or making keys. They work carelessly, and whe n they have finished sewing back a sandal strap(鞋带), you might as well just throw away the pair.My man saw I wouldn't give in, and he smiled. He looked at my shoes, had me write my na me on one shoe with a piece of chalk and said, "Come back in a week."I was about to leave when he took a pair of soft leather boots off a shelf."See what I can do?" he said with pride. "Only three of us in Paris can do this kind of work." When I got back out into the street, the world seemed brand-new to me. He was something out of an ancient legend, this old craftsman with his way of spe aking familiarly, his very strange, dusty felt hat, his funny accent from who-knows-where and, above all, his pride in his craft.These are times when nothing is important but the bottom line, when you can do things an y old way as long as it "pays", when, in short, people look on work as a path to ever-increasing consumption(消费) rather than a way to realize their own abilities. In such a period it is a rare comfort to fin d a cobbler who gets his greatest satisfaction from pride in a job well done.(1)Which of the following is true about the old cobbler?A He was equipped with the best repairing tools.B He was proud of his skills.C He was the only cobbler in the Marais.D He was a native Parisian.(2)The underlined sentence "He was something out of an ancient legend" shows that______.A it was difficult to communicate with this manB the man was verystrange C nowadays you can hardly find anyone like him D the man was too old(3)According to the author, many people work just to ______.A make moneyB realize their abilitiesC gain happinessD gain respect四、根据首字母填空21. 根据句子意思,用括号中所给汉语提示或英语单词的适当形式填空。
2019年江苏省扬州市树人学校中考物理一模试卷及答案
2019年江苏省扬州市树人学校中考物理一模试卷一、选择题1.(3分)下列数据中符合实际情况的是()A.普通教室楼层的高度是6mB.扬州四月份的平均凭温约为5℃C.1元硬币的质量约为50mgD.家用电扇的额定功率约为50W2.(3分)下列四幅图片与其对应的说法,正确的是()A.甲图中通过改变尺子伸出桌面的长度,可以探究响度与振幅的关系B.乙图中两列声波的音色相同C.丙图中“GPS导航”是利用超声波传递信息的D.丁图中通过改变杯中的水量,可以探究音调与频率的关系3.(3分)下图是课本中的四个实验,哪个实验与其他三个实验的物理思想方法不同()A.B.C.D.4.(3分)国外科研人员设计了一种“能量采集船”,如图所示,在船的两侧附着可触及水面的旋转“工作臂”,每只“工作臂”的底端装有一只手掌状的、紧贴水面的浮标。
当波浪引起浮标上下浮动时,工作臂就前后移动,获得电能储存起来。
下列电器设备与“能量采集船”获得能量原理相同的是()A.B.C.D.5.(3分)为救治病人,急需将一种药品送到偏远乡村,药品要求在0℃以下存放,医疗队临时制作了一个简易冷藏箱(如图),下列关于冷藏箱的说法正确的是()A.包装盒的外壳要用密度较大的材料B.包装盒要用导热效果较好的材料C.比较而言,冷藏盒中使用的冰块,使用盐水制作的好于清水D.冰块应放在图中甲容器中6.(3分)小明做实验时,将电路连接成如图所示的情景,若要将导线M、N与ABCD四个接线柱中任意两个连接,使两灯构成并联,且开关闭合后电压表指针正常偏转,共有几种接法()A.两种B.四种C.六种D.八种7.(3分)如图所示,小东用力推放在水平地面上的木箱,木箱静止不动,下列说法正确的是()A.木箱对地面的压力与地面对木箱的支持力是一对平衡力B.木箱没有动,是因为推力小于摩擦力C.小东推木箱的过程中,木箱的运动状态没有改变D.小东推木箱的过程中,木箱的惯性变大8.(3分)如图所示,在“研究充水玻璃管中气泡的运动规律”实验中()A.研究的气泡在水中运动是自上而下的B.为了便于测量,应使气泡在管内运动得快一些C.本实验也可将玻璃管保持一定倾角放置D.若仅测得气泡在管内运动的全部路程和时间,则可以判断气泡运动为匀速运动9.(3分)如图是研究电流通过导体产生的热量与哪些因素有关的实验,下列分析正确的是()A.甲、乙两次实验都应用了控制变量法B.甲实验通电一段时间后,左侧容器内空气吸收的热量更多C.乙实验是为了研究电流产生的热量与电阻的关系D.乙实验通电一段时间后,右侧U形管中液面的高度差比左侧的小10.(3分)小明家新购住房刚装修完毕,家中部分照明电路如图所示。
【精选】江苏省扬州市树人学校2019年中考语文第一次模拟试卷
江苏省扬州市树人学校2019年中考语文第一次模拟试卷一、积累与运用(38 分)1.下列词语中加点字读音完全正确的一项是()(2 分)A.蝉蜕(tuì)倏忽(shū)殷红(yīn)鲜为人知(xiǎn)B.天堑(zhàn)褐色(hè)澎湃(bài)精神抖擞(sǒu)C.镌刻(juān)精髓(suǐ)逞能(chěnɡ)杳无音讯(yǎo)D.绯红(fěi)休憩(qī)跌宕(dànɡ)万恶不赦(shè)2.下列各句中加点成语使用正确的一句是()(2 分)A.扬州是一座迷人的城市,深厚的文化底蕴,领先的现代科技,既各显其美,又相得益彰。
....B.晚会上,梧州市粤剧名家潘楚华将成名作《女马》唱得字正腔圆,令观众刮目相看。
.....C.白居易在地方为官时很注意接近民众,不管是乡间衣妇还是下里巴人,他都能谈得来,从他们那里得到....了很多创作素材。
D.这些年轻的科学家以无所不为的勇气,克服重重困难,去探索大自然的奥秘。
....3.下列句子中没有语病的一项是()(2 分)A.为营造扬州学茶、懂茶、爱茶,扬州“陆羽茶堂”将开展茶文化“进机关”的活动。
B.经过阿富汗和伊拉克两次战争,使美国得出无须依靠大型军事基地也可以打赢一场战争的结论。
C.谁如果要鉴赏我国的园林,感受园林艺术的内在美,苏州园林却不该错过。
D.增强法律意识,提高自我保护能力,是青少年健康成长的需要。
4.下列解说正确的一项是()(2 分)A.标语藤萝话题热词解说:这四个词的词性相同B.七零八落亲密无间聚族而居高热病症解说:这四个短语的结构类型相同。
C.母亲那种勤劳俭朴的习惯,母亲那种宽厚仁慈的态度,至今还在我心中留有深刻的印象。
解说:这句话的主干是:习惯、态度在我心中。
D.近 4 万字的文学理论巨著“文心雕龙”,是用正楷书法写出来的,这样的“壮举”是由扬州书法家储国天刚刚完成的。
解说:该项标点符号使用正确。
江苏省扬州中学2019年九年级第一次中考模拟测试物理试题(含答案)
扬州树人学校2019年第二学期第一次模拟考试九年级物理(满分:100分;考试时间:100分钟,将答案写在答题纸上)一、选择题(本题共12小题,每小题2分,共24分.每小题只有一个选项正确)1 .日常生活中,下列估测不符合事实的是()A.一只“220V 60W 的白炽灯工作10h 消耗电能约0.6kW?hB. 手机待机的电流为 0.15A C .家用电饭煲的电功率约为 900WD.照明电路的电压是 220V 2.下面是小明同学的“物理学习笔记”中的摘录,其中正确的是()A.物体的内能增大,温度一定升高B . 0C 的冰没有内能C.燃料的热值和燃料的质量没关系D.水结冰时要吸收热量3. 下列四幅图中,可以用来探究磁场对电流作用力的是( )4 .能源、信息和材料是现代社会发展的三大支柱。
关于能源、信息和材料,下列说法正确的是 ()A.光导纤维是用超声波来传递信息 B.光电池和VCD 光碟都应用了磁性材料C.核能是可再生能源D.电视广播、移动通信是用电磁波传递信号5.如图所示,利用图中的四个装置分别提起同一个重物,不计机械自重和摩擦,最省力的是CABD6.人类在探索自然规律的过程中,总结出了许多科学研究方法,如:“控制变量法”、“等效替代法”、“类比法”、“理想模型法”等。
下面是初中物理中的几个研究实例:①研究电流时,把电流比作水流;②研究磁场时,引入“磁感线”;③研究动能与速度的关系时,让物体的质量保持不变;④研究光的传播时,引入“光线”其中,采用了相同研究方法的是()甲 乙 丙 丁A. 图甲中,小孔成的是倒立的虚像B. 图乙中,人配戴的凹透镜可以矫正远视眼C. 图丙中,太阳光通过三棱镜会分解成红、橙、黄、绿、蓝、靛、紫七色光D. 图丁中,漫反射的光线杂舌L 无章不遵循光的反射定律 10.如何利用阻值已知的电阻 R0和一只电流表或一只电压表,测出未知电阻Rx 的阻值,几个 同学分别设计了如图所示的四种电路,其中可行的方法有(电源电压未知)()A . (1) (3)B . (2) (3) C. (2) (4) D . (1) (4)11.如图是某同学家中的部分电路, 开始时各部分工作正常,将电饭煲的插头插入三孔插座后,正在烧水的电热壶突然不能工作,但电灯仍正常工作。
江苏省扬州市树人学校2019届九年级上学期第一次月考语文试题及答案
2018– 2019 第一学期阶段练习扬州树人学校九年级语文(满分:150 分;考试时间:150 分钟)一、累积运用(39 分)1.以下加点字注音,所有正确的一组是(3分)..A.楹联( yíng)苍穹(qióng)舒适(qiè)要言不烦(gāi)...B.殷红( yīn)地壳(ké)污垢(gòu)销声匿迹(lì)....C.作梗( gěn)窘迫(jié)阴暗(huì)拾级而上(shí)....D.栈桥( ji àn)蓦地(mò)洞窟(xuè)翩但是至(piān)....2.以下句子中,加点的成语使用不正确的一项为哪一项(3分)...A. 游人们到达黄山,自然要浮想联翩,追本寻源,神游天外了。
....B. 诈骗分子革故鼎新,利用最新的市场破绽,想出了新的诈骗手法。
....C. 《朗诵者》《见字如面》《经典咏流传》等文化类节目如一股股清泉,沁人心牌....。
D. 我们应做“文明有礼二十四条”的践行者, 不可以让它在我们手中成为一纸空文。
....3.以下各句中,没有语病的一项为哪一项(3分)....A.“百度”、“美团”、“饿了么”,这三家外卖平台的全国日订单量大概在700 万单左右。
B.川航机组突遇险情,成功备降,激烈地震惊着网友的心,纷繁为他们的专业修养点赞。
C.我们不行否定做一个真切幸福的人应当关注自己的精神生活,培育文雅的兴趣喜好。
D.《厉害了,我的国》这部记录电影,从圆梦工程、创新驱动、绿色中国等角度,宣传了我国的大国风范。
4.以下说法正确的正确的一项为哪一项(3分)..A.他就把头摇了两三摇。
..——这个句子中第一个加点“摇”是动词,第二个加点“摇”是量词。
B.农业是公民经济的基础,也是第二、三家产的基础。
——这个句子的标点符号有问题。
C.满头鹤发的李老师老是兴致盎然地教我们写作文。
扬州树人学校2019届九年级第一次模拟试卷九年级数学(含答案)
扬州树人学校2019年九年级第一次模拟试卷九年级数学 2019.04一.选择题(每小题3分,共24分。
)1.-5的绝对值是( ) A. 51- B. -5 C. 5 D. -15 2.下列运算正确的是( )A. 632a a a =∙B.133=÷-a aC.222)b ab a b a +-=-(D. 632)a a -=-(3.如图是一个由4个相同正方体组成的立体图形,它的左视图是( )A. B. C. D.4.下列汽车标志的图形是中心对称图形的是是( ) 第3题图A. B. C. D.5.某校为了解学生的课外阅读情况,随机抽取了一个班级的学生,对他们一周的读书时间进行了统计,A. 9,8B. 9,9C. 9.5,9D. 9.5,86. 已知直线b a //,将一块含45°角的直角三角板(∠C=90°)按如图所示的位置摆放,若∠1=55°,则∠2的度数为( )A. 80°B. 70°C. 85°D. 75°7. 如图,有四个三角形,各有一边长为6,一边长为8,若第三边分别为6,8,10,12,则面积最大的三角形是( )A.B. C. D.8.如图1,在矩形ABCD 中,点E 在CD 上,∠AEB=90°,点P 从点A 出发,沿A →E →B 的路径匀速运动到点B 停止,作PQ ⊥CD 于点Q,设点P 运动的路程为x ,PQ 长为y ,若y 与x 之间的函数关系图象如图2所示,当x =6时,PQ 的值是( )A. 2B.59 C. 56 D. 1第6题图 第8题图二.填空题(每小题3分,共30分。
)9.中国的陆地面积和领水面积共约29970000km ,9970000这个数用科学记数法可表示为 。
10.在函数xx y --=11中,自变量x 的取值范围是 。
11.分解因式:=-a a 163 。
12.一个正多边形的每个内角都等于108°,则它的边数是 。
扬州树人2019-2020九上第一次月考数学
扬州树人学校2019-2020第一学期阶段练习九年级一.选择题1. 一元二次方程032=+x x 的解是( )A. x=-3B.3,021==x xC.3,021-==x xD.x=3 【答案】C2. 用配方法解方程0522=--x x 时,原方程应变形为 ( ) A.()612=-x B.()61x 2=+ C.()922=+x D.()92-x 2=【答案】A3. 一元二次方程017x 22=--x 的根的情况是( )A.有两个不相等的实数根B.有两个相等的实数根C.没有实数根D.不能确定 【答案】A4.下列说法正确的是( )A.三点确定一个圆B.一个三角形只有一个外接圆C.和半径垂直的直线是圆的切线D.三角形的内心到三角形三个顶点距离相等 【答案】B5.某药品经过两次降价,每瓶零售价由168元降为128元,已知两次降价的百分率相同,每次降价的百分率为x ,根据题意列方程得( )A.()12811682=+x B.()12811682=-xC.168(1-2x )=128D.()128x11682=-【答案】B6. 如图,AB,AC 是⊙O 的两条弦,∠A=25°,过点C 的切线与OB 的延长线交于点D ,则∠D 的度数为( )A.25°B.30°C.40°D.50° 【答案】C(第6题) (第7题) (第8题)7. 如图,AB 为⊙O 的直径,C 为⊙O 上的一动点(不与A 、B 重合),CD ⊥AB 于D ,∠OCD 的平分线交⊙O 于P ,则当C 在⊙O 上运动时,下列说法正确的是( ) A. 点P 的位置始终随点C 的运动而变化 B.点P 的位置无法确定 B. P A=OA D.OP ⊥AB 【答案】D8.如图,等边△ABC 中,D 在射线BA 上,以CD 为一边,向右上方作等边△EDC 。
若BC 、CD 的长为方程07152=+-m x x 的两根,当m 取符合题意得最大整数时,则不同位置的D 点共有( )个。
扬州中学教育集团树人学校届九年级第一次模拟考试英语试题(含答案)
扬州中学教育集团树人学校届九年级第一次模拟考试英语试题(含答案)扬州树人学校九年级第一次模拟考试英语试卷(满分:120 分;时间:100 分钟)第Ⅰ卷选择题(60 分)一、单项选择(共15 小题,每小题1 分,共15 分)在下列各题A、B、C、D 四个选项中选择一个能填入题干空白处的最佳答案。
1.—Have you seen film A Dog’s Purpose—Yes,it‘squitemoving movie, so I have seen it twice.A.a; theB. the; theC. a; aD. the; a2.There is no ticket left for Lang Lang‘s piano concert. you your sister can goto it.A.Neither, norB. Not only, but alsoC. Both,and D. Either, or3.The population of China is than that of country in the world.A.much more; anyB. much larger; anyC. much more; any otherD. much larger; any other4.When do you think visit her uncleA.she will go toB. she was going toC. will shego D. will she go to5.W ith the of society, our environment is becoming worse and worse. So we should do what we can our environment.A.develop; protectB. developing; to protectC. development; protectD. development; to protect6.What a surprise to see you here! When you backA.do; getB. did; getC. have; gotD. will; get7.Your shoes are broken. They need , but you do that yourself.A.to repair; don‘t need toB. repairing; needn‘tC. to repair; don‘t need C. repairing; needn‘t to8.--- When will the railway in our city in length of about 208 kilometers be in service--- 2020. Two fifths been completed smoothly so far.A.Until; hasB. Until; haveC. Not until; hasD. Not until;have9.---He‘s already back to Beijing,--- . He is on a visit to Shanghai.A.isn‘t he; NoB. hasn‘t he; YesC. isn‘t he; YesD. hasn‘t he; No10.A lthough a great deal of money at the charity show, the cost of living a lot, so we still need to do much work to help the poor people.A.was raised; has raisedB. was raised; has risenC. rose; was raisedD. rose; has risen11.big success thecharity show was!We have collected a lot ofmoney. A.How B.WhatC.What a D.How a12.--- Have you found the information about the famous peopley ou can use for the report---No t yet. I‘ll search some on the Internet.A.whoB. whatC. whomD. which13.--- Exercising more is good for us.--- So, I‘drather an hour‘s walk to workthan considera bus.A.take; to takeB. taking; takingC. take;taking D. taking; to take14.---Steve, I hear that Peter has won another championship.---It‘s notsurprising.. He practises hardest in the team.A.Every dog has its dayB. No pain, no gainC. Many hands make light workD. Actions speak louder thanwords15.--- Excuse me. Would you mind my using your dictionary for ashort time --- .A.No, you can‘t.B. It‘s my pleasure.C. Yes,please. D. Not at all. Help yourself.二、完形填空(共15 小题;每小题1 分,计15 分)阅读下面短文,从文后各题所给的A、B、C、D 四个选项中选出一个最佳答案。
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扬州树人学校九年级第一次模拟考试(满分120分;考试时间100分钟)说明:1.本试卷分第I卷和第II卷两部分2.答题前,考生务必将本人的姓名、准考证号填写在答题卡相应的位置上。
3.选择题每小题选出答案后,请用2B铅笔在答题卡指定区域填涂,如需改动,用橡皮擦干诤后,再填涂其它答案。
非选择题请用0.5毫米的黑色签字笔在答题卡指定区域作答,在试卷或草稿纸上作答一律无效。
考试结束后,请将答题卡交回。
第I卷选择题(60分)一、单项选择(共15小题每小题1分,共计15分)在下列各题A、8、C、D四个选项中选择一个能填入题干空白处的最佳答案。
1. As we all know, China is __________ Asian country and Britain is__________ European country.A.an anB. a, aC. a; anD. an; a2.—Can’t you see the kid looking__________his mother’s shoulder at the dancing birds again. —Em,that’s what children are like.A.acrossB. beyondC. towardsD. through3. The photo which has won the first prize has a great__________ of colour, content and feelings.A. advantageB. backgroundC. balancendscape4.—Did you enjoy the film yesterday?—No,not at all! I was__________ blind because I left my glasses at home.A so good as B. as well as C. as good as D. so well as5.—How do you get on with the English novel?—I've no idea. I__________ only half of it, and I will try to finish it at the weekend.A. readB. am readingC. have readD. will read6. In the song I Bet My Life, the US rock band Imagine Dragons tells people not to__________ catching their dreams.A. give outB. give offC. give inD. give up7. This dress still looks pretty on you,__________ it is out of style.A. butB.thoughC. sinceD. unless8. —Tom’s seldom asked to do housework at home,__________ he?—__________ .His parents are very busy with their work so he has to do some cleaning everyday.A. has; YesB. hasn't ;NoC. is; Yes ;'.D. isn't;No9. —Do you know__________ 'the meeting will last?—__________ the agreement is reached, I suppose.A.how long Not untilB. when Not untilC. how long;UntilD.when;Until10.—You have been to Yangzhou recently.What do you think of this city?—I like it very much,and I think it is the most beautiful place __________ I have ever been to.A. whichB. thatC. whatD. who11.An explosion(爆炸) happened in Xiangshui, Yanchen last week.People wondered__________ .A.that why it happened.B.how did the government helps solve the problem.C.what caused the terrible accidentD.how many people are killed in the accident12.Life is about waiting for the right moment__________because everyone is in his own TIME ZONE.A.actB.actingC.actsD.to act13.—Lily,I know you’re confident about getting this job, but remember “_________”So why not send your application form to a few more companies? -Sounds good.A. don't put your eggs in one basketB. the early bird catches the wormC. actions speak louder than wordsD. something is better than nothing14. —Need I finish my homework today, Mum?—__________.You will be busy and have no time to do it tomorrow.A. Yes, you needB. Yes, you mustC. Yes, you have toD.No,you needn't.15.—I love the Internet. I’ve come to know many friends on the Net.—__________.Few of them would become your real friends.A.I can't agree moreB. ľm pleased to know thatC. Never mindD. That's not the case二、完形填空(共15小题;每小题1分,计15分)阅读短文,从每题所给选项中选出可以填入空白处的最佳选项。
More than 95 percent of people in the world have phones today, according to the United Nations.People use 16 to make phone calls and send messages to communicate with others.Nowwe 17 write letters.But a TV show,Letters Alive(《见字如面》),is 18 back this old habit.Letters Alive gets its 19 from a UK program with a similar name. They have something in common.The shows both invite famous actors and actresses,20 there are no funny jokes or different competitions.Instead,it is just one person reading a letter.Since it has been on in December,Letters Alive has been 21 praised.The letters were written by people from different 22 in history.For example,once they read a letter written by famous writer Xiao Hong to her brother who is younger than her in 1941.The letter shows that Xiao Hong 23 her brother so much and had great hopes for his future.“Every letter opens_24 world for us,"said Guan Zhengwen,the director of the TV show."It seems that we can 25 the real lives and feelings of the writers.26,many people said that it has provided a breath of fresh air to today's TV.Apart from letters alive,some other 27 TV shows have also been accepted by Chinese audiences.They 28 Chinese Poetry Conference《中国诗词大会》,a classical Chinese poetry competition,and Readers,a program that 29 people to read poems and articles they like or wrote. “This means that our audiences not only looking for entertainment like gossip(八卦)and eye-catching games," reported China Daily."Cultural 30 and true feelings are the keys to winning praise."puters s C.radios D.phones17.A.often B.always C.Hardly D.never18.A.returning B.getting C.bringing D.taking19.A.idea B.book C.letter D.news20.A.and B.but C.because D.or21.A.wildly B.carefully C.clearly D.widely22.A.grades B.times C.classes D.families23.A.thought B.treated C.missed D.praised24.A.the other B.other C.others D.another25.A.make B.pass C.experience D.get26.A.Anyway B.but C.otherwise D.so27.A.traditional B.cultural C.fashionable D.humorous28.include B.have C.say D.report29.A.invite B.inviting C.invited D.invites30.A.prices B.cost C.values D.worth三、阅读理解(共15小题;每小题2分,计30分)阅读下列短文,根据短文内容选择最佳答案.31.How long will the STOP SMOKING course last?A.For four weeks.B.For three hours.C.For a week.D.For twelve weeks32.If you want to learn about computers and the same time you want to improve your typing,how much will you pay for it?A.$200B.$150. C$235 D.$180.g33.What's the special difference between the TYPING course and the other two?A.It takes less time.B.You will pay less money.C.You will take a test after the course.D.People with different skill levels may learn at different speed.BBack in Venice,there was one very angry moneylender When he discovered his daughter,Jessica,had run away and taken money and jewels with her,he was furious,He tried to find her.Bassanio and Graziano were on the ship,and it had started to sail.Shylock wanted to stop the ship.He thought Jessica and Lorenzo might be on it,but it was too late.The ship had alreadygone.Antonio told Shylock that his daughter and her lover were not on it.Someone said they had gone away on a smaller boat,but nobody really knew where they were.Shylock ran through the streets of Venice looking for them."My daughter,my money,my jewels!My money,my daughter,my jewels!"he shouted."My jewels,my daughter,my money!My daughter stole my money!She stole my jewels!She ran away with a Christian!I must find them!"All the little boys in Venice followed him and shouted"My jewels,my daughter,my money!"Solanio heard them.He thought,"Antonio better pay his debt on time,or he will pay for this.Shylock is very angry.He will ______ if he can."Far,far away from Venice,in the sea between England and France,there was a big storm.A strong wind blew a heavy ship against the rocks.The ship and its cargo sank.Salerio was the first person in Venice to hear the news,when he met a Frenchman in a hotel.He hoped that it was not one of Antonio's ships.34.The author of the passage above is________.A.William ShakespeareB.Charles Dickens dC.Frances hodgson BurnettD.Lewis Carroll35.The underlined word"this"in Pra.4 means__________.A.his jewelsB.his daughterC.his moneyD.all above36.Which is the most suitable to fill in the blank in Pra.4?A.take revengeB.regret itC.forgive himD.feel excited37.Why did Salerio hope that it was not one of Antonio's ship?A.Because he knew that Antonto would be angry when he found out what had happened.B.Because Shylock might have find out that Antonio helped Jessica and Lorenzo.C.Because Antonio would have no money to pay his debt on time.D.Because he hated Antonio.CDo you know the word kiasu?If not,then be kiasu and google it.You'll`get more than a million hits and learn that,usually associated(联系)with Singaporeans,it means"to be afraid of losing out".You'll come across words such as kiasu p arents,kiasu companies and even kiasu apps.Just 4 years ago,the word first spread among men in the Singapore army.But before long,it had entered everyday Singapore English.The first formal use of kiasu happened in 1990 in a government document(公文).Since then it has often been seen in Singapore newspapers.It spread to some other countries in southeast Asia,too.In 1992,Malaysia's New Straits Times wrote of"kiasu parents providing their children with much more materials than necessary".Ten years after its first use in print,the word was used worldwide.Since around2000,kiasu has appeared in British newspapers.The Guardian,in 2001,reported how"this pursuit of material wealth and the strong need to be No.1 has created the Singaporean we hear so much about--the kiasu Singaporean",and again reported in 2004 that Singaporeans'value shows how much they feel the need to stay ahead of everyone else and that they have a word for it:kiasu.The word entered the Urban Dictionary in 2003 and the Oxford English Dictionary in 2007.In the the same year,Singaporean restaurant Kiasu opened in London.The turning point on kiasu's road to the mainstream came with its being used in documents and newspapers.Who dared to use kiasu in a government document?Who first used it in a newspaper It was these people who pushed kiasu into the mainstream.38.What is the passage mainly about?A.How to use the word kiasu.B.What the word kiasu means.C.The history of the word kiasu.D.The importance of the word kiasu.39.What marked the wide use of the word kiasu around the world?A.Its appearance in British papers.B.Its use as the name of a restaurant.C.Its,acceptance by a key document.D.Its description in Singapore newspapers.40.What does the underlined word"pursuit"in Paragraph 4 mean?A.the act of looking forB.the act of looking outC.the act of giving upD.the act of giving out41.Which of the following statements is true?A.Kiasu was first used in British newspapers.B.Kiasu entered dictionaries in Singapore and Malaysia.C.Kiasu was never formally used in any government document.D.K iasu spread to countries in southeast Asia.DHe's an old cobbler(修鞋匠) with a shop in the Marais,a historic area in Paris.When I took him my shoes,he at first told me:"I haven't time.Take them to the other fellow on the main street,he'll fix them for you right away.”But I'd had my eye on his shop for a long time.Just looking at his bench loaded with tools and pieces of leather,I knew he was a skilled craftsman(手艺人)."No," I replied,"the other fellow can't do it well.""The other fellow”was one of those shopkeepers who fix shoes and make keys"while-U-wait"-without knowing much about mending shoes or making keys.They work carelessly,and when they have finished sewing back a sandal strap(鞋带)you might as well justthrow away the pair.My man saw I wouldn't give in,and he smiled.He wiped his hands on his blue apron(围裙), looked at my shoes,had me write my name on one shoe with a piece of chalk and said,"Come back in a week.”I was about to leave when he took a pair of soft leather boots off a shelf.“See what I can do?"he said with pride."Only three of us in Paris can do this kind of work.”When I got back out into the street,the world seemed brand-new to me.He was something out of an ancient legend,this old craftsman with his way of speaking familiarly,his very strange,dusty felt hat,his funny accent from who-knows-where and,above all,his pride in his craft.These are times when nothing is important but the bottom line,when you can do things any old, way as long as it"pays",when,in short,people look on work as a path to ever-increasing consumption(消费)rather than a way to realize their own abilities.In such a period it is a rare comfort to find a cobbler who gets his greatest satisfaction from pride in a job well done.42.Which of the following is true about the old cobbler."?A.He was equipped with the best repairing tools.B.He was the only cobbler in the Marais.C.He was proud of his skills.D.He was a native Parisian.43.The underlined sentence"He was something out of an ancient legend."implies that________A.the man was too oldB.it was difficult to communicate with this manC.the man was very strangeD.nowadays you can hardly find anyone like him44.According to the author,many people work just to _________.A.realize their abilitiesB.gain happinessC.make moneyD.gain respect45.This story wants to tell us that _____________A.craftsmen make a lot of moneyB.whatever you do,do it wellC.craftsmen need self-respectD.people are born equal四、词汇应用(共10小题:每小题1分,计10分)根据句子意思, 用括号中所给汉语提示或英语单词的适当形式填空. (每空一词)46.It's t_______to climb the mountain for four hours without stopping.(累人的)47.Jerry is crazy about computer.He dreams of being a computer _______some day.(工程师)48.157 people lost their lives in the air crash last month, __________8 Chinese.(包含)49.The Biology teacher says that seeds are often __________the wind.(传播)50.My robot has already stopped working_________,don't know what's wrong with him(完全地)51.My grandpa also has a QQ though he is in her ________(sixty).52.Though she answered the teacher's questions___________,the teacher didn't blame her.(correct)53.There is only a robot __________the machine in the factor.(control)54.Are you familiar with the________ names.(invent)55.My teachers often encourage me to go to the UK for_______study if possible.(far)五、任务型阅读(共10空;每空1分,计10分)阅读下列短文, 根据短中的信息完成文后表格. (每空一词)Many animal lovers would like to do more to help animals,but aren't sure where to start. The good news is that there are many simple things you can do to help protect animals.Think twice before you decideThe decisions you make may go a long way toward stopping the killing of animals.Consider eating a vegetarian(素食的)diet.If you aren't ready to make this change,there are still things you can do.Do not buy animal products from companies that have illegal(违法的)practices.Help speak the word outSpeaking the word out about the problems faced by animals can be as easy as putting up a notice on your car.Also,talk to your friends and family members about important problems of animals.Give some simple advice to a friend with a new pet about the serious pet over-population problem we're facing.Turn to some books on the subject if you are not so clear about the advice you give your friend.Write a letterWe've all heard the saying," The pen is more powerful than the sword". Put this idea to the protection of animals.If a company has practices rules that are harmful to animals,write them a letter to let them know you are angry about them,and that you won't buy their products until they make some changes. Write letters to state and local legislators(立法者)to let them know how important it is that they support legislation that protects animals.Make them know that their actions will have a great effect on your vote.Be more lovingIf you're considering adding a dog or a cat to your family,think about getting one from a homeless-animal house rather than buying a pet.There are many wonderful animals just waiting for a home.By taking back an animal from there,you will be helping in the fight against pet over-population,as well as giving your money to those who look after poor animals.Let your actions be an example to othersI may sound simple,but one of the best ways to help animals is to let your actions speak to the world.You should do the following things first by yourself: Treat all living animals with respect.Care about your pets and look after them well.Avoid entertainment places that use animals to perform.Support legislation (立法)that protects animals.All of these things set an example for六、短文填空(共10空:每空1分,计10分)根据短文内容及首字母提示,补全空格内单词,使短文完整, 通顺. (每空1词) The next morning,Scrooge went to the office early.He wanted to get there before Bob.The c 66 struck nine.No Bob.A quarter past,Bob still didn't come.He was eighteen and a half minutes late.Scrooge sat with his door w 67 open so he could see Bob come in.Bob t 68 his hat and scarf off before he opened the door.Then he ran to his stool(凳子).He quickly sat down and started w 69 very fast with his pen."Hello!"growled Scrooge,in his old v 70 ."You're late."“I am very sorry,sir,"said Bob.“Come here,"said Scrooge.“It's only once a year,sir,"pleaded(恳求) Bob."It won't happen a 71 .”"Now,listen to me,"said Scrooge,"I'm going to give you a pay rise!And I am going to help your family.A M 72 Christmas,Bob."Scrooge k 73 his word.He helped Bob's-family.Tiny Tim did NOT die. And Scrooge was a second father to him.Scrooge b 74 as good a friend,as good a boss,and a 75 good a man,as the good old city knew,or any other good old city or town,or country,in the good old world.七、书面表达(计30分)A.根据中文意思,完成下列句子,词数不限.(共5小题:每小题2分,计10分)76.乌云密布,我想天就要下雨了,77.跟城市生活比, 乡村生活某些方面会更好。