2018青海省西宁市中考真题
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青海省西宁市2018年中考英语试题考生注意:1.本试卷满分120分,考试时间120分钟。
2.本试卷为试题卷,不允许作为答题卷使用,答题部分请在答题卡上作答,否则无效。
3.答题前,考生务必将自己的姓名、准考证号、考点、考场、座位号写在答题卡上,同时填写在试卷上。
4.选择题用2B铅笔把答题卡上对应题目的答案标号涂黑(如需改动,用橡皮擦干净后,再选涂其他答案标号) 非选择题用0.5毫米的黑色签字笔答在答题卡相应位置,字体工整,笔迹清楚。
第I卷(选择题)一、听力理解第一节听对话,根据对话内容和所给问题,选择正确图片。
(读一遍)1. What's wrong with Peter?2. Where does the woman's brother work?3. How does the girl usually go to the piano class?4. Which festival are they talking about?5. Which one is NOT Tony's way to study English?第二节听对话,根据对话内容和所给问题,选择正确答案。
(读两遍)6. Who is the writer of the book?A. Deng Wen.B. J.K. Rowling.C. Mary.7. How will the man help the sick kids?A. Give them money.B. Clean up the hospital.C. Help them with their schoolwork.8. What does the woman think of the emperor?A. She doesn't like him at all.B. She loves him.C. She doesn't mind him.9. How old is Alexis now?A. Ten.B. Twelve.C. Twenty-two.10. How many countries are mentioned in the dialog?A. Five.B. Six.C. Seven.第三节听长对话,根据对话内容和所给问题,选择正确答案。
2018年西宁市中考数学试卷一、选择题(本大题共10小题,每小题3分,共30分)1.﹣2018的绝对值是()A.2018 B.﹣2018 C.±2018 D.﹣2.下列计算正确的是()A.2a+3b=5ab B.a3•a2=a6C.(a﹣b)2=a2﹣b2D.(a2)4=a83.方程2x+1=3的解是()A.x=﹣1 B.x=1 C.x=2 D.x=﹣24.如图,放置于同一水平面上的四个几何体中,俯视图为四边形的是()A.B.C.D.5.使二次根式有意义的x的取值范围是()A.x>2B.x≥2 C.x<2 D.x≤26.若一个不透明的袋子中装有2个白球、3个黄球和1个红球,这些球除颜色外其他完全相同,则从袋子中随机摸出一个球是白球的概率为()A.B.C.D.7.若一个等腰三角形的两边长分别是2和5,则它的周长为()A.12 B.9 C.12或9 D.9或78.小明、小亮同时为校园文化艺术节制作彩旗,已知小明每小时比小亮多做5面彩旗,小明做60面彩旗与小亮做50面彩旗所用时间相同,问小明每小时做多少面彩旗?若设小明每小时做x面彩旗,则下列方程组符合题意的是()A.=B.=C.=D.=9.若关于x的一元二次方程x2﹣2x﹣m=0无实数根,则一次函数y=(m+1)x+m﹣1的图象不经过第()象限.A.四B.三C.二D.一10.如图,菱形ABCD放置在直线l上(AB与直线l重合),AB=4,∠DAB=60°,将菱形ABCD沿直线l向右无滑动地在直线l上滚动,从点A离开出发点到点A第一次落在直线l上为止,点A运动经过的路径的长度为()A.B.C. +D.二、填空题(本大题共10小题,每小题2分,共20分)11.点A(﹣2,3)关于x轴的对称点A′的坐标为.12.因式分解:x3﹣x=.13.随着“青海湖旅游胜地”建设的全面推进,西宁旅游吸引力进一步提高,据统计,2017西宁市共接待国内外游客54.73万人次,将54.73万人次用科学记数法表示为人次.14.在学校组织的数学实践活动中,小新同学制作了一个圆锥模型,它的底面半径为1,高为2,则这个圆锥的侧面积是.15.如图所示,在△ABC中,D、E分别为AB、AC的中点,延长DE到F,使EF=DE,若AB=10,BC=8,则四边形BCFD的周长=.16.如图,已知直线AB与反比例函数和交于A、B两点,与y轴交于点C,若AC=BC,则S△AOB=.17.如图,过矩形ABCD的顶点B作BE∥AC,垂足为E,延长BE交AD于F,若点F是边AD的中点,则sin∠ACD的值是.18.13.甲、乙、丙三名学生各自随机选择到A、B两个书店购书,则甲、乙、丙三名学生到同一个书店购书的概率为.19.如图,AC是半圆O的一条弦,以弦AC为折线将弧AC折叠后过圆心O,⊙O的半径为2,则圆中阴影部分的面积为.20.如图,正方形ABCD的边长为12,点E在边AB上,BE=8,过点E作EF∥BC,分别交BD、CD于G、F两点.若点P、Q分别为DG、CE的中点,则PQ的长为.三、解答题(本大题共8小题,共70分)21.计算:()﹣1﹣+(π﹣1)0+tan60°.22.先化简,后求值:,其中a=3.23.如图,已知点E、F分别在▱ABCD的边AB、CD上,且AE=CF.求证:DE=BF.24.垃圾的分类处理与回收利用,可以减少污染,节省资源,生活垃圾一般按如图所示A、B、C、D四种分类方法回收处理,某城市环保部门为了提高宣传实效,抽样调查、统计了部分居民小区一段时间内生活垃圾的分类处理情况,并将调查统计结果绘制成如下两幅不完整的统计图表:根据图表解答下列问题:(1)请将条形统计图补充完整;(2)在抽样数据中,产生的有害垃圾共吨;(3)调查发现,在可回收物中塑料类垃圾占,每回收1吨塑料类垃圾可获得0.7吨二级原料.假设该城市每月产生的生活垃圾为5000吨,且全部分类处理,那么每月回收的塑料类垃圾可以获得多少吨二级原料?25.如图,山顶有一铁塔AB的高度为20米,为测量山的高度BC,在山脚点D处测得塔顶A和塔基B 的仰角分别为60°和45°.求山的高度BC.(结果保留根号)26.如图,已知AB是⊙O的直径,弦ED⊥AB于点F,点C是劣弧AD上的动点(不与点A、D重合),连接BC交ED于点G.过点C作⊙O的切线与ED的延长线交于点P.(1)求证:PC=PG;(2)当点G是BC的中点时,求证:CG2=BF•OB;(3)已知⊙O的半径为5,在满足(2)的条件时,点O到BC的距离为,求此时△CGP的面积.27.数学课上学习了圆周角的概念和性质:“顶点在圆上,两边与圆相交”,“同弧所对的圆周角相等”,小明在课后继续对圆外角和圆内角进行了探究.下面是他的探究过程,请补充完整:定义概念:顶点在圆外,两边与圆相交的角叫做圆外角,顶点在圆内,两边与圆相交的角叫做圆内角.如图1,∠M为所对的一个圆外角.(1)请在图2中画出所对的一个圆内角;提出猜想(2)通过多次画图、测量,获得了两个猜想:一条弧所对的圆外角这条弧所对的圆周角;一条弧所对的圆内角这条弧所对的圆周角;(填“大于”、“等于”或“小于”)推理证明:(3)利用图1或图2,在以上两个猜想中任选一个进行证明;问题解决经过证明后,上述两个猜想都是正确的,继续探究发现,还可以解决下面的问题.(4)如图3,F,H是∠CDE的边DC上两点,在边DE上找一点P使得∠FPH最大.请简述如何确定点P的位置.(写出思路即可,不要求写出作法和画图)28.如图,已知直线y=3x﹣3分别交x轴、y轴于A、B两点,抛物线y=x2+bx+c经过A、B两点,点C 是抛物线与x轴的另一个交点,该抛物线的对称轴与x轴交于点E.(1)直接写出抛物线的解析式为;(2)以点E为圆心的⊙E与直线AB相切,求⊙E的半径;(3)连接BC,点P是第三象限内抛物线上的动点,连接PE交线段BC于点D,当△CED为直角三角形时,求点P的坐标.2018年西宁市中考数学试卷参考答案与试题解析一、选择题(本大题共10小题,每小题3分,共30分)1.﹣2018的绝对值是()A.2018 B.﹣2018 C.±2018 D.﹣【考点】绝对值.【分析】直接根据绝对值的定义求解即可.【解答】解:﹣2018的绝对值是2018故选A.2.下列计算正确的是()A.2a+3b=5ab B.a3•a2=a6C.(a﹣b)2=a2﹣b2D.(a2)4=a8【考点】幂的乘方与积的乘方;合并同类项;同底数幂的乘法;完全平方公式.【分析】直接利用同底数幂的乘法运算法则以及幂的乘方运算法则、完全平方公式分解化简求出答案.【解答】解:A、2a+3b无法计算,故此选项错误;B、a3a2=a5,故此选项错误;C、(a﹣b)2=a2﹣2ab+b2,故此选项错误;D、(a2)4=a8,正确.故选:D.【点评】此题主要考查了幂的乘方运算法则以及结合合并同类项法则和完全平方公式等知识,正确掌握相关法则是解题关键.3.方程2x+1=3的解是()A.x=﹣1 B.x=1 C.x=2 D.x=﹣2【考点】一元一次方程的解.【分析】根据解方程,可得方程的解.【解答】解:移项,得2x=3﹣1,合并同类项,得2x=2,系数化为1,得x=1.故选:B.【点评】本题考查了一元一次方程的解,利用解一元一次方程的一般步骤是解题关键.4.如图,放置于同一水平面上的四个几何体中,俯视图为四边形的是()A.B.C.D.【考点】简单几何体的三视图.【分析】可根据各几何体的特点,得出俯视图形状是正方形即可.【解答】解:圆柱的俯视图是圆形,不符合题意;三棱柱的俯视图是三角形,不符合题意;球体的俯视图是圆,不符合题意;正方体的俯视图为正方形,符合题意;故选D.【点评】此题主要考查了几何体的三种视图,掌握定义是关键.俯视图是从物体上面看,所得到的图形.5.使二次根式有意义的x的取值范围是()A.x>2B.x≥2 C.x<2 D.x≤2【考点】二次根式有意义的条件.【分析】根据二次根式中的被开方数必须是非负数列出不等式,解不等式即可.【解答】解:由题意得,x﹣2≥0,解得x≥2,故选:B.【点评】本题考查的是二次根式有意义的条件,掌握二次根式中的被开方数必须是非负数是解题的关键.6.若一个不透明的袋子中装有2个白球、3个黄球和1个红球,这些球除颜色外其他完全相同,则从袋子中随机摸出一个球是白球的概率为()A.B.C.D.【考点】概率公式.【分析】由一个不透明的袋子中装有2个白球、3个黄球和1个红球,这些球除颜色外其他完全相同,直接利用概率公式求解即可求得答案.【解答】解:∵一个不透明的袋子中装有2个白球、3个黄球和1个红球,这些球除颜色外其他完全相同,∴从袋子中随机摸出一个球是白球的概率为:=.故选B.【点评】此题考查了概率公式的应用.用到的知识点为:概率=所求情况数与总情况数之比.7.若一个等腰三角形的两边长分别是2和5,则它的周长为()A.12 B.9 C.12或9 D.9或7【考点】等腰三角形的性质;三角形三边关系.【分析】利用等腰三角形的性质以及三角形三边关系得出其周长即可.【解答】解:∵一个等腰三角形的两边长分别是2和5,∴当腰长为2,则2+2<5,此时不成立,当腰长为5时,则它的周长为:5+5+2=12.故选:A.【点评】此题主要考查了等腰三角形的性质以及三角形三边关系,正确分类讨论得出是解题关键.8.小明、小亮同时为校园文化艺术节制作彩旗,已知小明每小时比小亮多做5面彩旗,小明做60面彩旗与小亮做50面彩旗所用时间相同,问小明每小时做多少面彩旗?若设小明每小时做x面彩旗,则下列方程组符合题意的是()A.=B.=C.=D.=【考点】由实际问题抽象出分式方程.【分析】根据题意利用小明做60面彩旗与小亮做50面彩旗所用时间相同得出等式,进而求出答案.【解答】解:设小明每小时做x面彩旗,根据题意可得:=.故选:D.【点评】此题主要考查了由实际问题抽象出分式方程,正确找出等量关系是解题关键.9.若关于x的一元二次方程x2﹣2x﹣m=0无实数根,则一次函数y=(m+1)x+m﹣1的图象不经过第()象限.A.四B.三C.二D.一【考点】根的判别式;一次函数图象与系数的关系.【分析】根据方程无实数根得出b2﹣4ac<0,代入数据即可得出关于m的一元一次不等式,解不等式即可得出m的取值范围,再根据m的取值范围来确定一次函数系数k、b的范围,由此即可得出一次函数经过的象限,此题得解.【解答】解:由已知得:△=b2﹣4ac=(﹣2)2﹣4×1×(﹣m)=4+4m<0,解得:m<﹣1.∵一次函数y=(m+1)x+m﹣1中,k=m+1<0,b=m﹣1<0,∴该一次函数图象在第二、三、四象限.故选D.【点评】本题考查了根的判别式以及一次函数图象与系数的关系,解题的关键是找出m的取值范围.本题属于基础题,难度不大,解决该题型题目时,根据根的个数结合根的判别式得出不等式(或不等式组)是关键.10.如图,菱形ABCD放置在直线l上(AB与直线l重合),AB=4,∠DAB=60°,将菱形ABCD沿直线l向右无滑动地在直线l上滚动,从点A离开出发点到点A第一次落在直线l上为止,点A运动经过的路径的长度为()A.B.C. +D.【考点】轨迹;菱形的性质.【分析】画出图象即可知道从点A离开出发点到点A第一次落在直线l上为止,点A运动经过的路径的长度为图中弧线长,由此即可解决问题.【解答】解:如图,从点A离开出发点到点A第一次落在直线l上为止,点A运动经过的路径的长度为图中弧线长.由题意可知=,∠DOA2=120°,DO=4所以点A运动经过的路径的长度=2×+=π+π,故选A.【点评】本题考查菱形的性质、弧长公式等知识,解题的关键是正确画出图象,探究点A的运动轨迹,记住弧长公式=,属于中考常考题型.二、填空题(本大题共10小题,每小题2分,共20分)11.点A(﹣2,3)关于x轴的对称点A′的坐标为(﹣2,﹣3).【考点】关于x轴、y轴对称的点的坐标.【分析】根据关于x轴对称的点,横坐标相同,纵坐标互为相反数,即可解答.【解答】解:点A(﹣2,3)关于x轴的对称点A′的坐标为(﹣2,﹣3),故答案为:(﹣2,﹣3).【点评】本题考查了关于x轴、y轴对称的点的坐标,解决本题的关键是掌握好对称点的坐标规律:关于x轴对称的点,横坐标相同,纵坐标互为相反数;关于y轴对称的点,纵坐标相同,横坐标互为相反数;关于原点对称的点,横坐标与纵坐标都互为相反数.12.因式分解:x3﹣x=x(x+1)(x﹣1).【考点】提公因式法与公式法的综合运用.【分析】原式提取x,再利用平方差公式分解即可.【解答】解:原式=x(x2﹣1)=x(x+1)(x﹣1),故答案为:x(x+1)(x﹣1)【点评】此题考查了提公因式法与公式法的综合运用,熟练掌握因式分解的方法是解本题的关键.13.随着桂林“国际旅游胜地”建设的全面推进,桂林旅游吸引力进一步提高,据统计,仅2016年春节假日期间,桂林市共接待国内外游客54.73万人次,将54.73万人次用科学记数法表示为 5.473×105人次.【考点】科学记数法—表示较大的数.【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.故答案为:5.473×105.【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.14.在学校组织的数学实践活动中,小新同学制作了一个圆锥模型,它的底面半径为1,高为2,则这个圆锥的侧面积是3π.【考点】圆锥的计算.【分析】先利用勾股定理计算出圆锥的高,然后利用圆锥的侧面展开图为一扇形,这个扇形的弧长等于圆锥底面的周长,扇形的半径等于圆锥的母线长和扇形的面积公式计算这个圆锥的侧面积.【解答】解:圆锥的母线长==3,所以这个圆锥的侧面积=•2π•1•3=3π.故答案为3π.【点评】本题考查了圆锥的计算:圆锥的侧面展开图为一扇形,这个扇形的弧长等于圆锥底面的周长,扇形的半径等于圆锥的母线长.15.如图所示,在△ABC中,D、E分别为AB、AC的中点,延长DE到F,使EF=DE,若AB=10,BC=8,则四边形BCFD的周长=26.【考点】平行四边形的判定与性质;三角形中位线定理.【分析】根据D、E分别为AB、AC中点,可证明DE为三角形ABC的中位线,通过证明△ADE和△CFE 全等则可得到AD=CF,由已知数据即可求出四边形BCFD的周长.【解答】解:∵D、E分别为AB、AC中点,∴DE=BC,∵BC=8,∴DE=4,∵在△ADE和△CFE中,,∴△ADE≌△CFE,∴CF=BD=AB=5,∵DE=FE=4,∴DF=8,∴四边形BCFD的周长为:BD+BC+CF+DF=5+8+8+5=26,故答案为:26.【点评】本题考查了三角形的中位线性质和全等三角形的判定以及全等三角形的性质,解题的关键是熟记各种性质定理和判定定理.16.如图,已知直线AB与反比例函数和交于A、B两点,与y轴交于点C,若AC=BC,则S△AOB=.【考点】反比例函数与一次函数的交点问题.【分析】作AD⊥y轴于D,BE⊥y轴于E,如图,先证明△ACD≌△BCE得到S△ACD=S△BCE,再利用面积代换得到S△AOB=S△AOD+S△BOE,然后根据反比例函数比例系数k的几何意义进行计算.【解答】解:作AD⊥y轴于D,BE⊥y轴于E,如图,在△ACD和△BCE中,,∴△ACD≌△BCE,∴S△ACD=S△BCE,∴S△AOB=S△AOC+S△BOC=S△AOD+S△ACD+S△BOC=S△AOD+S△BCE+S△BOC=S△AOD+S△BOE=|﹣1|+|2|=.故答案为.【点评】本题考查了反比例函数与一次函数的交点问题:一次函数与反比例函数的交点坐标满足两个函数解析式.也考查了反比例函数比例系数k的几何意义.17.如图,过矩形ABCD的顶点B作BE∥AC,垂足为E,延长BE交AD于F,若点F是边AD的中点,则sin∠ACD的值是.【考点】矩形的性质;解直角三角形.【分析】由矩形的性质得出AD∥BC,AD=BC,∠D=90°,证出△AEF∽△CEB,得出对应边成比例=,设AF=DF=a,AE=x,则CE=2x,AC=3x,再证明△AEF∽△ADC,得出,得出x=,AC=a,再由三角函数的定义即可得出结果.【解答】解:∵点F是边AD的中点,∴AF=DF=AD,∵四边形ABCD是矩形,∴AD∥BC,AD=BC,∠D=90°,∴AF=BC,△AEF∽△CEB,∴=,设AF=DF=a,AE=x,则CE=2x,AC=3x,∵BF⊥AC,∴∠AEF=∠D=90°,∵∠EAF=∠DAC,∴△AEF∽△ADC,∴,即,解得:x=,∴AC=a,∴sin∠ACD==,故答案为:.【点评】本题考查了矩形的性质、相似三角形的判定与性质、三角函数;熟练掌握矩形的性质,证明三角形相似是解决问题的关键.18.【分析】首先根据题意画树状图,然后根据树状图即可求得所有等可能的结果与甲、乙、丙三名学生在同一书店购书的情况数,然后根据概率公式求解即可求得答案.【解答】解:画树状图得:由树状图知共有8种等可能结果,其中甲、乙、丙三名学生在同一书店购书的有2种情况,∴甲、乙、丙三名学生到同一个书店购书的概率为=,故答案为:.【点评】此题考查了树状图法求概率.注意树状图法适合两步或两步以上完成的事件,树状图法可以不重不漏的表示出所有等可能的结果,用到的知识点为:概率=所求情况数与总情况数之比.19.【分析】过点O作OE⊥AC,交AC于D,连接OC,BC,证明弓形OC的面积=弓形BC的面积,这样图中阴影部分的面积=△OBC的面积.【解答】解:过点O作OE⊥AC,交AC于D,连接OC,BC,∵OD=DE=OE=OA,∴∠A=30°,∵AB是⊙O的直径,∴∠ACB=90°,∴∠B=60°,∵OB=OC=2,∴△OBC是等边三角形,∴OC=BC,∴弓形OC面积=弓形BC面积,∴阴影部分面积=S△OBC=×2×=.故答案为:【点评】本题考查了折叠问题、扇形的面积.解决本题的关键是把阴影部分的面积转化为△OBC的面积.20.【分析】根据题意作出合适的辅助线,利用三角形中位线定理、三角形的相似可以求得PH和QH的长,然后根据勾股定理即可求得PQ的长.【解答】解:作QM⊥EF于点M,作PN⊥EF于点N,作QH⊥PN交PN的延长线于点H,如右图所示,∵正方形ABCD的边长为12,BE=8,EF∥BC,点P、Q分别为DG、CE的中点,∴DF=4,CF=8,EF=12,∴MQ=4,PN=2,MF=6,∵QM⊥EF,PN⊥EF,BE=8,DF=4,∴△EGB∽△FGD,∴,即,解得,FG=4,∴FN=2,∴MN=6﹣2=4,∴QH=4,∵PH=PN+QM,∴PH=6,∴PQ==,故答案为:2.【点评】本题考查三角形中位线定理、正方形的性质、勾股定理、三角形相似,解答本题的关键是明确题意,找出所求问题需要的条件,利用数形结合的思想解答.三、解答题(本大题共8小题,共70分)21.计算:()﹣1﹣+(π﹣1)0+tan60°.【考点】实数的运算;零指数幂;负整数指数幂;特殊角的三角函数值.【分析】原式利用零指数幂、负整数指数幂法则,二次根式性质,以及特殊角的三角函数值计算即可得到结果.【解答】解:原式=2﹣2+1+=3﹣.【点评】此题考查了实数的运算,熟练掌握运算法则是解本题的关键.22.先化简,后求值:,其中a=3.【考点】分式的化简求值.【分析】现将括号内的部分因式分解,通分后相加,再将除法转化为乘法,最后约分.再将a=3代入即可【解答】解:÷=÷=====a.∴当a=3时,原式=3.【点评】本题考查了分式的化简求值,熟悉因式分解及约分是解题的关键.23.如图,已知点E、F分别在▱ABCD的边AB、CD上,且AE=CF.求证:DE=BF.【考点】平行四边形的性质;全等三角形的判定与性质.【分析】由“平行四边形ABCD的对边平行且相等”的性质推知AB=CD,AB∥CD.然后根据图形中相关线段间的和差关系求得BE=FD,易证四边形EBFD是平行四边形,即可得出结论.【解答】证明:∵四边形ABCD是平行四边形,∴AB=CD,AB∥CD.∵AE=CF.∴BE=FD,BE∥FD,∴四边形EBFD是平行四边形,∴DE=BF.【点评】本题考查了平行四边形的判定与性质.平行四边形的判定方法共有五种,应用时要认真领会它们之间的联系与区别,同时要根据条件合理、灵活地选择方法.24.垃圾的分类处理与回收利用,可以减少污染,节省资源,生活垃圾一般按如图所示A、B、C、D四种分类方法回收处理,某城市环保部门为了提高宣传实效,抽样调查、统计了部分居民小区一段时间内生活垃圾的分类处理情况,并将调查统计结果绘制成如下两幅不完整的统计图表:根据图表解答下列问题:(1)请将条形统计图补充完整;(2)在抽样数据中,产生的有害垃圾共3吨;(3)调查发现,在可回收物中塑料类垃圾占,每回收1吨塑料类垃圾可获得0.7吨二级原料.假设该城市每月产生的生活垃圾为5000吨,且全部分类处理,那么每月回收的塑料类垃圾可以获得多少吨二级原料?【考点】条形统计图;统计表;扇形统计图.【分析】(1)根据D类垃圾量和所占的百分比即可求得垃圾总数,然后乘以其所占的百分比即可求得每个小组的频数从而补全统计图;(2)求得C组所占的百分比,即可求得C组的垃圾总量;(3)首先求得可回收垃圾量,然后求得塑料颗粒料即可.【解答】解:(1)观察统计图知:D类垃圾有5吨,占10%,垃圾总量为5÷10%=50(吨),故B类垃圾共有50×30%=15(吨),(2)∵C组所占的百分比为:1﹣10%﹣30%﹣54%=6%,∴有害垃圾为:50×6%=3(吨),故答案为:3;(3)5000×54%××0.7=378(吨),答:每月回收的塑料类垃圾可以获得378吨二级原料.【点评】本题考查条形统计图、用样本估计总体、扇形统计图,读懂统计图,从统计图中得到必要的信息是解决问题的关键,条形统计图能清楚地表示出每个项目的数据.25.如图,山顶有一铁塔AB的高度为20米,为测量山的高度BC,在山脚点D处测得塔顶A和塔基B 的仰角分别为60°和45°.求山的高度BC.(结果保留根号)【考点】解直角三角形的应用-仰角俯角问题.【分析】Rt△BCD中,根据∠BDC的正切函数,可用BC表示出CD的长;进而可在Rt△ACD中,根据∠ADC的正切函数,列出关于BC的等量关系式,即可求出BC的长.【解答】解:由题意知∠ADC=60°,∠BDC=45°,在Rt△BCD中,∵∠BDC=45°,在Rt△ACD中,tan∠ADC===,∴BC=10(+1),答:小山高BC为10(+1)米.【点评】本题考查了解直角三角形的应用,难度适中,解答本题的关键是借助俯角构造直角三角形并解直角三角形.26.如图,已知AB是⊙O的直径,弦ED⊥AB于点F,点C是劣弧AD上的动点(不与点A、D重合),连接BC交ED于点G.过点C作⊙O的切线与ED的延长线交于点P.(1)求证:PC=PG;(2)当点G是BC的中点时,求证:CG2=BF•OB;(3)已知⊙O的半径为5,在满足(2)的条件时,点O到BC的距离为,求此时△CGP的面积.【考点】圆的综合题.【分析】(1)连结OC,根据切线的性质得OC⊥PC,根据余角的性质得到∠B=∠OCG,等量代换得到∠PCG=∠BGF,根据对顶角相等得∠BGF=∠PGC,于是得到∠PGC=∠PCG,根据等腰三角形的判定定理即可得到结论;(2)连结OG,由点G是BC的中点,根据垂径定理的推论得OG⊥BC,BG=CG,根据相似三角形的性质得到BG2=BO•BF,等量代换得到结论;(3)连结OE,OG=OG=,在Rt△OBG中,利用勾股定理计算出BG=2,再利用BG2=BO•BF可计算出BF,从而得到OF=1,根据三角形的面积公式即可得到结论.【解答】(1)证明:连结OC,如图,∵PC为⊙O的切线,∴OC⊥PC,∴∠OCG+∠PCG=90°,∵ED⊥AB,∴∠B+∠BGF=90°,∵OB=OC,∴∠B=∠OCG,∴∠PCG=∠BGF,而∠BGF=∠PGC,∴∠PGC=∠PCG,∴PC=PG;(2)解:CG、BF、BO三者之间的数量关系为CG2=BO•BF.理由如下:连结OG,如图,∵点G是BC的中点,∴OG⊥BC,BG=CG,∴∠OGB=90°,∵∠OBG=∠GBF,∴Rt△BOG∽Rt△BGF,∴BG:BF=BO:BG,∴BG2=BO•BF,∴CG2=BO•BF;(3)解:连结OE,如图,由(2)得OG⊥BC,∴OG=,在Rt△OBG中,OB=5,∴BG==2,由(2)得BG2=BO•BF,∴BF==4,∴OF=1,∴FG==2,过P作PH⊥BC于H,∵PC=PG,∴GH=CG=BG=,∵∠PHG=∠BFG=90°,∠BGF=∠DGH,∴△BFG∽△PHG,∴,即,∴PH=2,=CG•PH=×2×2=10.∴S△CGP【点评】本题考查了垂径定理以及推论,勾股定理,三角形相似的判定与性质,三角形的面积的计算,正确的作出辅助线构造直角三角形是解题的关键.27.数学课上学习了圆周角的概念和性质:“顶点在圆上,两边与圆相交”,“同弧所对的圆周角相等”,小明在课后继续对圆外角和圆内角进行了探究.下面是他的探究过程,请补充完整:定义概念:顶点在圆外,两边与圆相交的角叫做圆外角,顶点在圆内,两边与圆相交的角叫做圆内角.如图1,∠M为所对的一个圆外角.(1)请在图2中画出所对的一个圆内角;提出猜想(2)通过多次画图、测量,获得了两个猜想:一条弧所对的圆外角这条弧所对的圆周角;一条弧所对的圆内角这条弧所对的圆周角;(填“大于”、“等于”或“小于”)推理证明:(3)利用图1或图2,在以上两个猜想中任选一个进行证明;问题解决经过证明后,上述两个猜想都是正确的,继续探究发现,还可以解决下面的问题.(4)如图3,F,H是∠CDE的边DC上两点,在边DE上找一点P使得∠FPH最大.请简述如何确定点P的位置.(写出思路即可,不要求写出作法和画图)【分析】(1)在⊙O内任取一点M,连接AM,BM;(2)观察图形,可知:一条弧所对的圆外角小于这条弧所对的圆周角;一条弧所对的圆内角大于这条弧所对的圆周角,此问得解;(3)(i)BM与⊙O相交于点C,连接AC,利用三角形外角的性质可得出∠ACB=∠M+∠MAC,进而可证出∠ACB>∠M;(ii)延长BM交⊙O于点C,连接AC,利用三角形外角的性质可得出∠AMB =∠ACB+∠CAM,进而可证出∠AMB>∠ACB;(4)由(2)的结论,可知:当过点F,H的圆与DE相切时,切点即为所求的点P.【解答】解:(1)如图2所示.(2)观察图形,可知:一条弧所对的圆外角小于这条弧所对的圆周角;一条弧所对的圆内角大于这条弧所对的圆周角.故答案为:小于;大于.(3)证明:(i)如图1,BM与⊙O相交于点C,连接AC.∵∠ACB=∠M+∠MAC,∴∠ACB>∠M;(ii)如图4,延长BM交⊙O于点C,连接AC.∵∠AMB=∠ACB+∠CAM,∴∠AMB>∠ACB.(4)如图3,当过点F,H的圆与DE相切时,切点即为所求的点P.【点评】本题考查了圆的综合应用以及三角形外角的性质,解题的关键是:(1)依照题意画出图形;(2)观察图形,找出结论;(3)利用三角形外角的性质证出:一条弧所对的圆外角小于这条弧所对的圆周角;一条弧所对的圆内角大于这条弧所对的圆周角;(4)利用(2)的结论找出点P的位置.28.如图,已知直线y=3x﹣3分别交x轴、y轴于A、B两点,抛物线y=x2+bx+c经过A、B两点,点C 是抛物线与x轴的另一个交点,该抛物线的对称轴与x轴交于点E.(1)直接写出抛物线的解析式为y=x2+2x﹣3;(2)以点E为圆心的⊙E与直线AB相切,求⊙E的半径;(3)连接BC,点P是第三象限内抛物线上的动点,连接PE交线段BC于点D,当△CED为直角三角形时,求点P的坐标.【考点】二次函数综合题.【分析】(1)先利用一次函数解析式求出A点和B点坐标,再把A点和B点坐标代入y=x2+bx+c得关于b、c的方程组,然后解方程组求出b、c即可得到抛物线解析式;。
青海省西宁市2018年中考数学真题试题-精品-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN西宁市2018年高中招生考试数 学 试 卷考生注意:1.本试卷满分120分,考试时间120分钟。
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第Ⅰ卷 (选择题 共30分)一、选择题(本大题共10小题,每小题3分,共30分.在每小题给出的四个选项中,恰有一项是符合题目要求的,请将正确选项的序号填涂在答题卡上.) 1.32+-的值是 A .5-B .5C .1-D . 12.下列各式计算正确的是 A .2222-=-B .a a 482=(a >0)C .)9()4(-⨯-=4-9-⨯D .336=÷3.在下列图形中既是轴对称图形又是中心对称图形的是 A .角B .线段C .等腰三角形D .平行四边形4.如果等边三角形的边长为4,那么等边三角形的中位线长为 A .2B .4C .6D .85.如图1所示的几何体的俯视图应该是6.使两个直角三角形全等的条件是A.一锐角对应相等B.两锐角对应相等C.一条边对应相等D.两条边对应相等7.已知两个半径不相等的圆外切,圆心距为cm6,大圆半径是小圆半径的2倍,则小圆半径为A.cm2或cm6B.cm6C.cm4D.cm28.已知函数bkxy+=的图象如图2所示,则一元二次方程012=-++kxx根的存在情况是A.没有实数根B.有两个相等的实数根C.有两个不相等的实数根D.无法确定9.如图3,已知OP平分∠AOB,∠AOB=︒60,CP2=,CP∥OA,PD⊥OA于点D,PE⊥OB于点E.如果点M是OP的中点,则DM的长是A.2B.2 C.3 D.32 10.如图4,矩形的长和宽分别是4和3,等腰三角形的底和高分别是3和4,如果此三角形的底和矩形的宽重合,并且沿矩形两条宽的中点所在的直线自右向左匀速运动至等腰三角形的底与另一宽重合.设矩形与等腰三角形重叠部分(阴影部分)的面积为y,重叠部分图形的高为x,那么y关于x的函数图象大致应为图A B C D1图2图3第Ⅱ卷 (非选择题 共90分)二、填空题(本大题共10小题,每小题2分,共20分.不需写出解答过程,请把最后结果填在答题纸对应的位置上.)11.分解因式:222ab b a -= .12.2018年青洽会已梳理15类318个项目总投资达363000000000元. 将363000000000元用科学记数法表示为 元.13.关于x 、y 的方程组⎩⎨⎧=-=+m y m x 36中,=+y x .14.如果一个正多边形的一个外角是︒60,那么这个正多边形的边数是 .15.张明想给单位打电话,可电话号码中的一个数字记不清楚了,只记得6352□87,张明在□的位置上随意选了一个数字补上,恰好是单位电话号码的概率是 .16.直线12-=x y 沿y 轴平移3个单位,则平移后直线与y 轴的交点坐标为 .17.如图5,甲乙两幢楼之间的距离是30米,自甲楼顶A 处测得乙楼顶端C 处的仰角为︒45,测得乙楼底部D 处的俯角为︒30,则乙楼的高度为 米.图4图5 图618.如图6,网格图中每个小正方形的边长为1,则弧AB 的弧长=l .19.如图7,AB 为⊙O 的直径,弦CD ⊥AB 于点E ,若CD =6,且AE :BE =1:3,则AB = .20.如图8,是两块完全一样的含︒30角的三角板,分别记作△ABC 和△A 1B 1C 1,现将两块三角板重叠在一起,设较长直角边的中点为M ,绕中点M 转动上面的三角板ABC ,使其直角顶点C 恰好落在三角板A 1B 1C 1的斜边A 1B 1上.当∠A =︒30,AC =10时,则此时两直角顶点C 、C 1的距离是 . 三、解答题(本大题共8小题,第21、22题每小题7分、第23、24、25题每小题8分,第26、27题每小题10分,第28题12分,共70分.解答时将文字说明、证明过程或演算步骤写在答题纸相应的位置上.) 21.(本小题满分7分)计算:︒--+-60sin 4383 22.(本小题满分7分)先化简21422---x x x ,然后在不等式x 25->1-的非负整数解中选一个使原式有意义的数代入求值. 23.(本小题满分8分)如图9,在平面直角坐标系xoy 中,直线AB 与x 轴交于点A ,与y 轴交于点C (0,2),且与反比例 函数xy 8=在第一象限内的图象交于点B ,且 BD ⊥x 轴于点D ,OD 2=. (1)求直线AB 的函数解析式;EDCO B图7 图8AB C A 1B 1C 1M 图9AOCBDxy(2)设点P是y轴上的点,若△PBC的面积等于6,直接写出点P的坐标.24.(本小题满分8分)在折纸这种传统手工艺术中,蕴含许多数学思想,我们可以通过折纸得到一些特殊图形.把一张正方形纸片按照图①~④的过程折叠后展开.(1)猜想四边形ABCD是什么四边形;(2)请证明你所得到的数学猜想.① ② ③ ④25.(本小题满分8分)今年西宁市高中招生体育考试测试管理系统的运行,将测试完进行换算统分改为计算机自动生成,现场公布成绩,降低了误差,提高了透明度,保证了公平.考前张老师为了解全市初三男生考试项目的选择情况(每人限选一项),对全市部分初三男生进行了调查,将调查结果分成五类:A、实心球(2kg);B、立定跳远;C、50米跑;D、半场运球;E、其它.并将调查结果绘制成以下两幅不完整的统计图,请你根据统计图解答下列问题:(1)将上面的条形统计图补充完整;(2)假定全市初三毕业学生中有5500名男生,试估计全市初三男生中选50米跑的人数有多少人?(3)甲、乙两名初三男生在上述选择率较高的三个项目:B、立定跳远;C、50米跑;D、半场运球中各选一项,同时..选择半场运球、立定跳远的概率是多少?请用列表法或画树形图的方法加以说明并列出所有等可能的结果.26.(本小题满分10分)如图10,⊙O是△ABC的外接圆,BC为⊙O直径,作∠CAD=∠B,且点D在BC的延长线上,CE⊥AD于点E.(1)求证:AD是⊙O的切线;(2)若⊙O的半径为8,CE=2,求CD的长.图1027.(本小题满分10分)青海新闻网讯:西宁市为加大向国家环境保护模范城市大步迈进的步伐,积极推进城市绿地、主题公园、休闲场地建设.园林局利用甲种花卉和乙种花卉搭配成A、B两种园艺造型摆放在夏都大道两侧.搭配数量如下表所示:甲种花卉(盆)乙种花卉(盆)A种园艺造型80盆40盆(个)B种园艺造型50盆90盆(个)(1)已知搭配一个A种园艺造型和一个B种园艺造型共需500元.若园林局搭配A种园艺造型32个,B种园艺造型18个共投入11800元.则A、B两种园艺造型的单价分别是多少元?(2)如果搭配A、B两种园艺造型共50个,某校学生课外小组承接了搭配方案的设计,其中甲种花卉不超过3490盆,乙种花卉不超过2950盆,问符合题意的搭配方案有几种?请你帮忙设计出来.28.(本小题满分12分)如图11,正方形AOCB 在平面直角坐标系xoy 中,点O 为原点,点B 在反比例函数xk y =(x >0)图象上,△BOC 的面积为8. (1)求反比例函数x k y =的关系式;(2)若动点E 从A 开始沿AB 向B 以 每秒1个单位的速度运动,同时动点F 从B 开始沿BC 向C 以每秒2个单位的 速度运动,当其中一个动点到达端点时,另一个动点随之停止运动.若运动时间 图11 用t 表示,△BEF 的面积用S 表示,求出S 关于t 的函数关系式,并求出当运动时间t 取何值时,△BEF 的面积最大(3)当运动时间为34秒时,在坐标轴上是否存在点P ,使△PEF 的周长最小若存在,请求出点P 的坐标;若不存在,请说明理由.西宁市2018年高中招生考试 数学试卷参考答案及评分意见一、选择题:(本大题共10小题,每小题3分,共30分.)1.D 2.A 3.B 4.A 5.B 6.D 7.D 8.C 9.C 10.B二、填空题:(本大题共10小题,每小题2分,共20分.)11.()b a ab 2- 12.111063.3⨯ 13.9 14.615.101 16.(0,2)或(0,4-) 17.()31030+18.π223 19.3420.5AF OCEBxy三、解答题:(本大题共8小题,第21、22题每小题7分、第23、24、25题每小题8分,第26、27每小题10分,第28题12分,共70分.) 21.解:原式23432⨯-+-= ………………………………6分32--=. ……………………………………7分22.解:原式= ()()()()222222-++--+x x x x x x (2)分=21+x …………………………………3分 x 25->1- 解得:x <3 ………………4分∴非负整数解为0=x ,1,2 ………………5分答案不唯一,例如: ∴当0=x 时,原式21=………………………………………7分 23.解:(1)∵BD ⊥x 轴,OD 2=∴点D 的横坐标为2 将2=x 代入xy 8=得4=y ∴B (2,4)设直线AB 的函数解析式为b kx y +=(0≠k )将点C (0,2)、B (2,4)代入b kx y +=得⎩⎨⎧=+=422b k b ∴⎩⎨⎧==21b k ∴直线AB 的函数解析式为2+=x y (6)分(2)P (0,8)或P (0,4-) (8)分24.解:(1)四边形ABCD 是菱形 ……………………………2分(2)∵△AMG 沿AG 折叠∴∠MAD =∠DAC =21∠MAC 同理可得:∠CAB =∠NAB =21∠CAN ∠DCA =∠MCD =21∠ACM∠ACB =∠NCB =21∠ACN …………4分∵四边形AMCN 是正方形 ∴∠MAN =∠MCN∴AC 平分∠MAN ,AC 平分∠MCN ∴∠DAC =∠BAC =∠DCA =∠BCA∴AD ∥BC ,AB ∥DC ∴四边形ABCD 为平行四边形(两组对边分别平行的四边形是平行四边形)………………6分∵∠DAC =∠DCA∴AD =CD (等角对等边) (7)分∴四边形ABCD 为菱形(一组邻边相等的平行四边形是菱形) (8)分25.解:(1)图形正确即可 ……………………2分(2)人2200%405500=⨯ ……………4分 (3)树形图:所有等可能结果有9种:BB BC BD CB CC CD DB DC DD同时选择B 和D 的有2种可能,即BD 和DB ……………………7分(2)()92=D B P 和同时选择 …………………………………8分26.(1)证明:连接OA …………………………1分∵BC 为⊙O 的直径,∴∠BAC =90°∴∠B +∠ACB =90°∵OA=OC ,∴∠OAC =∠OCA∵∠CAD =∠B ,∴∠CAD +∠OAC =90°即∠OAD =90°∴OA ⊥AD ∵点A 在圆上∴AD 是⊙O 的切线 …………………………………5分(2) 解:∵CE ⊥AD ∴∠CED =∠OAD =90°∴CE ∥OA∴△CED ∽△OAD ……………………………………7分∴CD CE OD OA = CE=2 设CD =x ,则OD =x +8即288x x =+ ……………………………………8分 解得x =83 经检验x =83是原分式方程的解 所以CD =83………………………………………………10分27.解:(1)设A 种园艺造型单价为x 元,B 种园艺造型单价为y 元,根据题意得:……………………………………1分⎩⎨⎧=+=+118001832500y x y x ……………………………………3分解此方程组得:⎩⎨⎧==300200y x ……………………………………4分 答:A 种园艺造型单价是200元,B 种园艺造型单价是300元. ……………5分(2)设搭配A 种园艺造型a 个,搭配B 种园艺造型()个a -50,根据题意得:……………………………………6分()()⎩⎨⎧≤-+≤-+29505090403490505080a a a a ……………………………………7分 解此不等式组得:3331≤≤a ∵a 是整数∴符合题意的搭配方案有3种 …………8分 A 种园艺造型(个) B 种园艺造型(个)方案1 31 19方案2 32 18方案3 33 17分28.解:(1)∵四边形AOCB 为正方形 ∴A B=BC=OC=OA设点B 坐标为(a ,a )∵8=∆BOC S ∴8212=a ∴4±=a 又∵点B 在第一象限点B 坐标为(4,4) ……………………………………2分将点B (4,4)代入x k y =得16=k ∴反比例函数解析式为x y 16= ………………………………4分 (2)∵运动时间为t ,∴AE =t , BF t 2=∵AB =4 ∴BE =t -4,∴()t t S BEF 2421⋅-=∆t t 42+-= ……………………………………6分 ()422+--=t ……………………………7分 ∴当2=t 时,△BEF 的面积最大 ……………………………8分(3)存在. …………………………………9分当34=t 时,点E 的坐标为(34,4),点F 的坐标为(4,34) ①作F 点关于x 轴的对称点F 1,得F 1(4,34-),经过点E 、F 1作直线由E (34,4),F 1(4,34-)可得直线EF 1的解析式是3202+-=x y 当0=y 时,310=x ∴P 点的坐标为(310,0) …………………………10分 ②作E 点关于y 轴的对称点E 1,得E 1(34-,4),经过点E 1、F 作直线由E 1(34-,4),F (4,34)可得直线E 1F 的解析式是31021+-=x y 当0=x 时,310=y ∴P 点的坐标为(0,310) ……………………………11分 ∴P 点的坐标分别为(310,0)或(0,310) ………12分 (注:每题只给出一种解法,如有不同解法请参照评分标准给分)。
2018年青海省西宁市中考物理试卷一、选择题(每小题2分,共26分.每小题只有一个选项符合题意)1.下列关于声音的说法中正确的是()A.“隔墙有耳”说明固体也能传声B.“震耳欲聋”主要说明明声音的音调高C.北京天坛的丘,加快了声音的传播速度,从而使人听到的声音更加洪亮D.用超声波清洗钟表等精密仪器,说明声波能传递信息2.下列实例中,属于光的折射现象的是()A.日食和月食的形成B.利用红外遥感技术监视森林火灾C.注水后的游泳池看起来池底变浅D.用平面镜改变光的传播方向3.古语道:“人要实,火要虚”。
此话的意思是说做人要脚踏实地,才能事业有成:可燃物要架空一些,才能燃烧更旺。
“火要虚”的目的是()A.增大可燃物物的热值B.降低可燃物的着火点C.能使可燃物完全燃烧D.提高了可燃物的利用率4.能源、信息和材枓是现代社会发展的三大支柱。
下列说法错误的是()A.在倡导“节能环保”“低碳生活”的今天,人类特别重视太阳能的利用B.超导材料可应用于电饭锅和远距离输电线C.导航导航传递信息过程中主要依靠电磁波D.光纤具有抗干扰、信号衰减小的特点,适用于远距离、大容量信息传输5.下图中说法错误的是()A.如图是发电机原理装置图B.如图是电动机原理装置图C.如图中动圈式话筒是电流磁效应原理D.如图是安培定则判断通电螺线管的极性6.我国计划在2025年实现首次载人登月。
已知月球上无大气、无磁场,物体在月球上所受重力只相当于地球上的,假设月球表面粗糙程度与地面相同。
在月球上,你认为下列情况可能的是()A.月球车行驶时所受摩擦力变小B.用指南针确定方向C.利用降落伞降落,以确保安全落月D.月球车可以用汽油机驱动7.图是课木“探究电流通过导体产生的热量与导体电阻间关系”的实验装置,两个透明容器中封闭着等量的空气,电路正确连接后,通电进行实验过程中,下列说法正确的是()A.左边容器电阻丝中的电流比右边容器电阻丝中的电流大B.U形管中液面高度的变化反映电阻丝产生热量的多少C.要保持两个电阻丝两端电压相等D.通电时间相同,两个容器中空气吸收的热量相同8.下列是初中物理的几个探究实验:①探究“平面镜成像的特点”;②探究“物体动能跟哪些因素有关”;③探究磁场时,引入“磁感线”;④探究“电流与电压的关系”,其中,采用了“控制变量法”的是()A.①和③B.②和③C.①和④D.②和④9.小明用弹簧测力计拉动木块,使它沿同一水平木板滑动,图是他两次拉动同一木块得到的距离随时间变化的图象。
2018年青海省西宁市中考化学试卷一、选择题(1-8小题每题1分,9-13小题每题2分,共18分分,每小题只有一个选项符合题意)1.(1分)(2018•西宁)下列变化中,属于化学变化的是()A.海水晒盐B.胆矾研碎C.食物腐败D.干冰升华2.(1分)(2018•西宁)空气中体积分数最大的气体是()A.氮气B.氧气C.二氧化碳D.稀有气体3.(1分)(2018•西宁)下列化中属于复合肥料的是()A.Ca(H2PO4)2B.(NH4)2HPO4C.CO(NH2)2D.2SO44.(1分)(2018•西宁)2018年6月5日是第47个世界环境日,中国确立的主题是:“美丽中国,我是行动者”。
以下做法符合这一主题的是()A.煤、石油、天然气等化石燃料是可再生的,人类可以无限制地开发利用B.农药和化肥能促进粮食增产,可以尽量多用C.为减少公交压力,提倡多开私家车出行D.生活污水经处理达标后再排放5.(1分)(2018•西宁)下列列含氮的物质中,氮元素化合价为+3价的是()A.N2B.NH3C.NaNO2D.HNO36.(1分)(2018•西宁)如图所示实验操作,正确的是()A.测溶液pH B.过滤C.稀释浓硫酸D.量取9.3mL液体7.(1分)(2018•西宁)吸烟有害健康,香烟的烟气中含有几百种对人体有害的物质,尼古丁是其中的一种,其化学式为C10H14N2,下列关于尼古丁的说法正确的是()A.尼古丁是由三种元素组成的有机物B.尼古丁是由10个碳原子、14个氢原子、2个氨原子构成的C.尼古丁中氢元素质量分数最大D.尼古丁中碳、氢、氮三种元素的质量比为5:7:18.(1分)(2018•西宁)生产某阻燃剂(Sb2O5)的化学方程式为+2H2O2=Sb2O5+2H2O,推断的化学式为()A.H3SbO4B.SbO3C.SBO2D.Sb2O39.(2分)(2018•西宁)有甲、乙、丙、丁四种颗粒大小相同的金属,分别投入等质量等浓度的稀硫酸中,乙、丙表面有气泡产生,且丙产生气泡较快,甲、丁无现象;再将甲投入丁的盐溶液中,甲的表面有丁析出,则这四种金属的活动性由强到弱的序为()A.甲>乙>丙>丁B.丙>乙>甲>丁C.丙>乙>丁>甲D.丁>甲>乙>丙10.(2分)(2018•西宁)善于流理化学知识是学好化学的有效方法,以下梳理归纳正确的一组是()A.描述实验现象B.实验安全①50mL水和50mL酒精混合后总体积等于100mL②硫在空气中燃烧产生明亮的蓝紫色火焰,有刺激性气味气体生成③二气化碳通入紫色石蕊溶液中,溶液变红色①点燃可燃性气体前一定要验纯②实验室鉴别化学药品时不可以尝任何药品的味道③向燃然着的酒精灯内添加酒精,以节约实验时间C.化学与生活D.认识物质俗名①人体缺乏继生素A容易患环血病②洗涤剂除油污利用了乳化的原理③高钙牛奶中的“钙”指钙元素①碳酸钠﹣苏打②氯氧化钙一消石灰③氢氧化钠一火碱A.A B.B C.C D.D11.(2分)(2018•西宁)推理是化学学习中常用的思维方法,下列推理正确的是()A.混合物中至少含有两种物质,则混合物中至少含有两种元素B.硝酸铵溶于水吸收大量的热,则氢氧化钠溶于水吸收大量的热C.物质在发生化学变化时,原子的种类不变,则元素种类也不会改变D.利用红磷燃烧的方法可以测定空气中氧气的含量,则利用木炭也可以12.(2分)(2018•西宁)已知甲和乙在一定条件下反应生成丙和丁,结合微观示意图分析,下列结论正确的是()A.甲的相对分子质量为34gB.乙物质为氧化物C.参加反应的甲和乙的质量比为17:24D.反应前后分子种类和数目均不发生改变13.(2分)(2018•西宁)除去下列物质中的少量杂质,所选用的试剂或方法正的是()选项物质杂质所用试剂或方法A CO2CO通入过量氧气,点燃B CaO CaCO3高温煅烧C NaOH溶液Na2CO3加入适量稀盐酸D FeCl2溶液CuCl2加入适量镁粉,过滤A.A B.B C.C D.D二、填空题(化学方程式2分,其余每空1分,共14分)14.(4分)(2018•西宁)请用合适的化学用语填空:(1)3个氧原子(2)铵根离子(3)2个甲烷分子(4)标出硝酸镁中镁元素的化合价15.(3分)(2018•西宁)如图为A、B、C、D、E五种粒的结构示意图,请按要求填空:(1)A、B、C、D、E种粒子中,属于同种元素的是(填序号)。
青海西宁市2018年中考英语真题(有解析) CO
M 青海省西宁市- Do you like the movie Amazing China? It’s ________ educational movie
-- Yes I like it very much and I am very proud ______ our country
A a; in
B the; in
C a of
D an; of
【答案】D
【解析】
【详解】句意-你喜欢《厉害了,我的国》这部电影吗?-它是一部教育片。
-是的,我非常喜欢,我为我的国家感到骄傲。
a或an是不定冠词,修饰可数名词单数,表示泛指“一个…”,an用于元音音素前;the是定冠词,修饰名词表示特指;in在…里面;of…的。
根据句意可知,第一个空应表示泛指“一部教育片”,educational 的第一个音素是/e/,元音,故用an;第二个空是固定短语be proud of…为…感到骄傲。
故应选D。
2 -- Tony is only shorter than Jim, right?
-- Yes, he is ________ student in his class
A the second tallest
B the two tallest
C second tallest
D two tallest
【答案】A
【解析】
【详解】句意-Tony只比Jim矮,对吧?-是的,他是他的班里第二高的学生。
the second tallest第二最高;the two tallest形。
青海省西宁市2018年中考英语真题试题考生注意:1.本试卷满分120分,考试时间120分钟。
2.本试卷为试题卷,不允许作为答题卷使用,答题部分请在答题卡上作答,否则无效。
3.答题前,考生务必将自己的姓名、准考证号、考点、考场、座位号写在答题卡上,同时填写在试卷上。
4.选择题用2B铅笔把答题卡上对应题目的答案标号涂黑(如需改动,用橡皮擦干净后,再选涂其他答案标号)非选择题用0.5毫米的黑色签字笔答在答题卡相应位置,字体工整,笔迹清楚。
第I卷(选择题)一、听力理解第一节听对话,根据对话内容和所给问题,选择正确图片。
(读一遍)1.What's wrong with Peter?2.Where does the woman's brother work?3.How does the girl usually go to the piano class?4.Which festival are they talking about?5.Which one is NOT Tony's way to study English?第二节听对话,根据对话内容和所给问题,选择正确答案。
(读两遍)6.Who is the writer of the book?A.Deng Wen.B.J.K.Rowling.C.Mary.7.How will the man help the sick kids?A.Give them money.B.Clean up the hospital.C.Help them with their schoolwork.8.What does the woman think of the emperor?A.She doesn't like him at all.B.She loves him.C.She doesn't mind him.9.How old is Alexis now?A.Ten.B.Twelve.C.Twenty-two.10.How many countries are mentioned in the dialog?A.Five.B.Six.C.Seven.第三节听长对话,根据对话内容和所给问题,选择正确答案。
2018年青海省西宁市中考化学试卷一、选择题(1-8小题每题1分,9-13小题每题2分,共18分分,每小题只有一个选项符合题意)1.(1分)(2018•西宁)下列变化中,属于化学变化的是()A.海水晒盐B.胆矾研碎C.食物腐败D.干冰升华2.(1分)(2018•西宁)空气中体积分数最大的气体是()A.氮气B.氧气C.二氧化碳D.稀有气体3.(1分)(2018•西宁)下列化中属于复合肥料的是()A.Ca(H2PO4)2B.(NH4)2HPO4C.CO(NH2)2D.2SO44.(1分)(2018•西宁)2018年6月5日是第47个世界环境日,中国确立的主题是:“美丽中国,我是行动者”。
以下做法符合这一主题的是()A.煤、石油、天然气等化石燃料是可再生的,人类可以无限制地开发利用B.农药和化肥能促进粮食增产,可以尽量多用C.为减少公交压力,提倡多开私家车出行D.生活污水经处理达标后再排放5.(1分)(2018•西宁)下列列含氮的物质中,氮元素化合价为+3价的是()A.N2B.NH3C.NaNO2D.HNO36.(1分)(2018•西宁)如图所示实验操作,正确的是()A.测溶液pH B.过滤C.稀释浓硫酸D.量取9.3mL液体7.(1分)(2018•西宁)吸烟有害健康,香烟的烟气中含有几百种对人体有害的物质,尼古丁是其中的一种,其化学式为C10H14N2,下列关于尼古丁的说法正确的是()A.尼古丁是由三种元素组成的有机物B.尼古丁是由10个碳原子、14个氢原子、2个氨原子构成的C.尼古丁中氢元素质量分数最大D.尼古丁中碳、氢、氮三种元素的质量比为5:7:18.(1分)(2018•西宁)生产某阻燃剂(Sb2O5)的化学方程式为+2H2O2=Sb2O5+2H2O,推断的化学式为()A.H3SbO4B.SbO3C.SBO2D.Sb2O39.(2分)(2018•西宁)有甲、乙、丙、丁四种颗粒大小相同的金属,分别投入等质量等浓度的稀硫酸中,乙、丙表面有气泡产生,且丙产生气泡较快,甲、丁无现象;再将甲投入丁的盐溶液中,甲的表面有丁析出,则这四种金属的活动性由强到弱的序为()A.甲>乙>丙>丁B.丙>乙>甲>丁C.丙>乙>丁>甲D.丁>甲>乙>丙10.(2分)(2018•西宁)善于流理化学知识是学好化学的有效方法,以下梳理归纳正确的一组是()A.描述实验现象B.实验安全①50mL水和50mL酒精混合后总体积等于100mL②硫在空气中燃烧产生明亮的蓝紫色火焰,有刺激性气味气体生成③二气化碳通入紫色石蕊溶液中,溶液变红色①点燃可燃性气体前一定要验纯②实验室鉴别化学药品时不可以尝任何药品的味道③向燃然着的酒精灯内添加酒精,以节约实验时间C.化学与生活D.认识物质俗名①人体缺乏继生素A容易患环血病②洗涤剂除油污利用了乳化的原理③高钙牛奶中的“钙”指钙元素①碳酸钠﹣苏打②氯氧化钙一消石灰③氢氧化钠一火碱A.A B.B C.C D.D11.(2分)(2018•西宁)推理是化学学习中常用的思维方法,下列推理正确的是()A.混合物中至少含有两种物质,则混合物中至少含有两种元素B.硝酸铵溶于水吸收大量的热,则氢氧化钠溶于水吸收大量的热C.物质在发生化学变化时,原子的种类不变,则元素种类也不会改变D.利用红磷燃烧的方法可以测定空气中氧气的含量,则利用木炭也可以12.(2分)(2018•西宁)已知甲和乙在一定条件下反应生成丙和丁,结合微观示意图分析,下列结论正确的是()A.甲的相对分子质量为34gB.乙物质为氧化物C.参加反应的甲和乙的质量比为17:24D.反应前后分子种类和数目均不发生改变13.(2分)(2018•西宁)除去下列物质中的少量杂质,所选用的试剂或方法正的是()选项物质杂质所用试剂或方法A CO2CO通入过量氧气,点燃B CaO CaCO3高温煅烧C NaOH溶液Na2CO3加入适量稀盐酸D FeCl2溶液CuCl2加入适量镁粉,过滤A.A B.B C.C D.D二、填空题(化学方程式2分,其余每空1分,共14分)14.(4分)(2018•西宁)请用合适的化学用语填空:(1)3个氧原子(2)铵根离子(3)2个甲烷分子(4)标出硝酸镁中镁元素的化合价15.(3分)(2018•西宁)如图为A、B、C、D、E五种粒的结构示意图,请按要求填空:(1)A、B、C、D、E种粒子中,属于同种元素的是(填序号)。
市2018年中考化学真题省市2018年中考化学真题试题(60分)可能用到的相对原子质量:H-1c12N-14o-16Na-23S-32cu64第Ⅰ卷(选选择题)一、选择题(1-8小题每题1分,9-13小题每题2分,共18分分,每小题只有一个选项符合题意)1.下列变化中,属于化学变化的是()A.海水晒盐B.胆矾研碎c.食物腐败D.干冰升华2.空气中体积分数最大的气体是()A.氮气B.氧气c.二氧化碳D.稀有气体3.下列化中属于复料的是()A.ca(H2Po4)2B.(NH4)2HPo4c.co(NH2)2D.k2S044.2018年6月5日是第47个世界环境日,中国确立的主题是:“美丽中国,我是行动者”。
以下做法符合这一主题的是()A.煤、石油、天然气等化石燃料是可再生的,人类可以无限制地开发利用B.农药和化肥能促进粮食增产,可以尽量多用c.为减少公交压力,提倡多开私家车出行D.生活污水经处理达标后再排放5.下列列含氮的物质中,氮元素化合价为+3价的是() A.N2B.NH3c.NANo2D.HNo36.下图所示实验操作,正确的是()7.吸烟有害健康,香烟的烟气中含有几百种对人体有害的物质,尼古丁是其中的一种,其化学式为c10H14N2,下列关于尼古丁的说确的是()A.尼古丁是由三种元素组成的有机物B.尼古丁是由10个碳原子、14个氢原子、2个氨原子构成的c.尼古丁中氢元素质量分数最大D.尼古丁中碳、氢、氮三种元素的质量比为5:7:18.生产某阻燃剂(Sb2o5)的化学方程式为X+2H2o2=Sb2o5+2H2o,雄推断X的化学式为()A.H3Sbo4B.Sbo3c.SBo2D.Sb2o39.有甲、乙、、丁四种颗粒大小相同的金属,分别投入等质量等浓度的稀硫中,乙、丙表面有气泡产生,且丙产生气泡较快,甲、丁无现象;再将甲投入丁的盐落液中,甲的表面有丁析出,则这四种金属的活动性由强到弱的序为()A.甲>乙>丙>丁B.丙>乙>甲>丁c.丙>乙>丁>甲D.丁>甲>乙>丙10.善于流理化学知识是学好化学的有效方法,以下梳理归纳正确的一组是()A.描述实验现象B.实验安全①50L水和50L酒精混合后总体积等于100L②硫在空气中燃烧产生明亮的蓝紫色火焰,有刺激性气味气体生成③二气化碳通入紫色石蕊溶液中,溶液变红色①点燃可燃性气体前一定要验纯②实验室鉴别化学药品时不可以尝任何药品的味道③向燃然着的酒精灯添加酒精,以节约实验时间c.化学与生活D.认识物质俗名①人体缺乏继生素A容易患环血病②洗涤剂除油污利用了乳化的原理③高钙牛奶中的“钙”指钙元素①碳酸钠¬¬¬—打②氯氧化钙一消石灰③氢氧化钠一火碱11.推理是化学学习中常用的恩维方法,下列传理正确的是()A,混合物中至少含有两种物质,则泥合物中至少含有两种元素B.硝酸铵溶于水吸收大量的热,则氢氧化钠溶于水吸收大量的热c.物质在发生化学变化时,原子的种类不变,则元素种类也不会改变D.利用红磷燃烧的方法可以测定空气中氧气的含量,则利用木炭也可以12.已知甲和乙在一定条件下反应生成丙和丁,结合微观示意图分析,下列结论正确的是()A.甲的相对分子质量为34gB.乙物质为氧化物c.参加反应的甲和乙的质量比为17:24D.反前后分子种类和数目均不发生改变13.除去下列物质中的少量杂质,所选用的试剂或方的是()选项物质杂质所用试剂或方法Aco2co通入过量氧气,点燃Bcaocaco3高温煅烧cNaoH溶液Na2co3加入适量稀盐酸DFecl2溶液cucl2加入适量镁粉,过滤第Ⅱ卷(非选择题)二、填空题(化学方程式2分,其余每空1分,共14分) 14.请用合适的化学用语填空:(1)3个氧原子(2)铵根离子(3)2个甲烷分子(4)标出硝酸镁中镁元素的化合价15.如图为A、B、c、D、E五种粒的结构示意图,请按要求填空:(1)A,B,c、D、E种粒子中,属于同种元素的是(填序号)。
2018年青海省西宁市中考英语试卷一、听力理解(每小题1分,共20分)第一节听对话,根据对话内容和所给问题,选择正确图片.1.(1分)hats wron wit Pete?2.(1分)herees the oman'sbrother wok?3.(1分)How dos hgir usually g t the piano lss?4.(1分)Whih fstivlare tey talkng abou?5.(1分)hich ones T Tony' way to suy nglish?第二节听对话,根据对话内容和所给问题,选择正确答案.6.(1分)Deg Wn.Whoi e writer of he ook?Mary.7.(1分)Ho will tha help the sick ds?Give hemmony.Hp te with teir schoolork.8.(1分)What doesthewom think of h empor?e does' like him tall.he oesn't min him.9.(1分)How od is Ales no?Telve.Tweny﹣tw.10.(1分)Hw many countres a metionedithe ialog?Si.Seen.第三节听长对话,根据对话内容和所给问题,选择正确答案.11.(2分)Toby ew balls f Jack.Ys.does.hydoes h bo orrow money frm hs mom?o.he osn't.Tobuy newalls for melf.Doe the boyhv alls?To treat ak a ine.12.(3分)Te spakers may be wifed sband.The woman alwayslys ompr ames.Actor.Wh doyou think thtwomen's job ar inthedilog?Rnner.n the stre.听一段话回答下面各小.On the bway.In tehouse.The man alway ply wit hioil phone.第四节听短文,根据短文内容从A、B、C三个选项中选择正确答案,完成信息记录表.13.(5分)ette halt careAnurses at th hoe300A.or yong babies.hedoctorsThe youngdosworers at thehebabiesotheolder oesA100henursesorenurses二、单项选择(每小题1分,共15分)14.(1分)﹣﹣Do like the movie Aazing CinIts_______ eductiona movie.﹣﹣Yes I like it er mucandI am ey poud _____ourcountry.()A.a;in B.the in C.a:f D.a;of 15.(1分)﹣﹣Tony olyshorter tha Jim,rght?﹣﹣Yes,is ________ udentinisclas.()A.the snd tallest B.te to tllestC.end tallest D.twotallet16.(1分)He an't efuse o ifyuask _____.()A.slently B.quiety C.poltely D.ludly17.(1分)﹣﹣Hi ny! _________ yo _______ to the newly﹣oenedshoppingma,Tangao laely?﹣Yes.en there with my parens lastwk.()A.id;go B.Hve:been C.Have one D.Do:go 18.(1分)We panned t met at 10:30athe staion yesterd,bu Bobdid't_________untl 10.()A.turnup B.stay p C.how up D.grw up19.(1分)﹣﹣Xnng Sur Resort夏都),hasrienl peope and _______ weathe.﹣﹣es.I hope _______ me turists cing her tonjo ther col sume()A.a peasat;here il beB.leasa;hre will hayC.plesant;thre wl haveD.leasant;hre will be20.(1分)Mile's oth ________ her be a great dacer lik r.)A.opes B.wrns C.wnts D.maks21.(1分)﹣﹣Lia,do't let ______ .am to by to etanyone this omig.﹣﹣Ok.I______.()A.noboy;ill B.anybody;n'tC.seody;don't D.anybod;dn't22.(1分)t's tie to say godbye to myscoo.I'll everforget heday____ pent together ()A.tht B.wat C.who D.whn23.(1分)﹣Thanks ___our government,we caplay otsad on henew playgrnd xt wee.﹣Tht'so sure!Andwe'lave a spots meting _____onemonh.)A.or;in B.to;in C.or;fter D.t;afer 24.(1分)﹣Mr.Wa,I he troule ______ the text.Could yhelp me?﹣Certanly is,remeber ________ it three imesa least.Then,Iill el yu mor.()A.to undestn reading B.uderstading;eadingC.undersandin;toead D.t unrstand;to read25.(1分)﹣﹣Do't be sy Frein ill not laug at ou._______,theywillencourge ou.﹣Thans r your minding and suppt()A.nstead B.So C.Or D.Nor26.(1分)e coudn't find out ____,so we wroteLos andfon".()A.whoe it ws bke B.whos bikit wasC.wose bik wasit D.whose as it ke27.(1分)﹣_________ bigucesthefashon show is!﹣﹣Yes it's ralyfaasic.()A.How B.Howa C.Wht D.hat a28.(1分)﹣Woul ou mnd tunng up h music?﹣________ Dad is sleepng now)A.Sorr I can't oit B.Ye,pleseC.No,no aall D.O.I wil三、完形填空(每小题10分,共10分)29.(10分)ut the jelly bck o he shef.No longe asit sta pt ofelly.(10)its er,y mother would alwys lie on.Or chlden grew up o petbuter (花生酱)and ely (果酱)ndwiches.Thedeliious jelly ade e ,an homemade was te st choic.wsn'tth elly mar in thibg amily.My wast w alwy there.Jell making was js a waof lifforher.She di ifollowig te same seps﹣fro picn t fruitto sttng the fnished elly n the shlf.A.anry disppointed pleased sdA sster faher husand mothr A.never aways hrdly eldomA.divie sell sare wasteA.r away ook out tre away t away A.seached creaed discoerd ralzed(7)A.r nd but so(8).hair emries hands ead(9)A.beatng piking kssing sreding10)A.As on as Asfar as s wll as Asson as四、阅读理解(1-10题,每小题10分:11-15题,每小题10分.共25分)30.(10分)You may know thnglish letes,and Cu do yo know there are peple ledABCs You a lik eting nans But do youknow ther are uch peoplwithheame of "bnaaeon"?Are these peop fro "anther panet (星球)"?No.They are jus Chinee people lie u ad m.thy wee bor inChna ugo t study in Ameicawe dn' like himABCmeas merican﹣born﹣Chiese.n ABC hinese,but asborn inhe UniedStates.oeimes,peole call A a "banna person".anana is yelow otsieanwieinside.S "banaa prson"is hte insid ﹣﹣thinking lie a westener an yelow ouide ﹣﹣okinglka inese."ABC" in hs pasae mes "".Do ou knowwh Usull,ABCs knw ltle about China or Chieseanguage.osof the do' spek Cinese.Als,thy are nt ireted in Chinese poltics (治).Bt ifACscant speak Chnese.cn we stillcall hem Chins ppe?Yes,course TeyareCise Theyarevrses (海的)Cnese.Thesepple may be citizens (公民of other counrelik te US,Cnada Singare.But thy hve Chines lodTheir arnts,grandparens o eegrt﹣rndparenswer from Chna.heyll hablack eyes and blackhaiut the are notCinese ctien Tey are not pople o hina.For xample,weall know the famu scietist C.N Yng (振宁.Heot theNbel rie in Physics in 1957.Cispople ove hm.Bt he is Amerin citizen.洪水血统Amercahines aren't ChineseciiznstreeEnglishettersteNobelPrizeThis passg anlytalks abot.their bdiesaehite inside bt llow outidehinese bonin eern coutres ae calle "bana ersons" bcause.C.N.Yang is ntioned ere to so at.thy werbo in Americabt ok in ChinaChiseborn﹣Ameicathy think like westerer bt loo ikeCieeknd of anana血样thmeaningof "AB"31.(10分)Four.Besies eerAlive,soe or ltural TV sws have aso een well eceived y Chinee auinces.ineseoetryonfrene isa tradtional hese poetry comptition.n Readrsivite pepl t readems and articles hey lik or wroe.Ituggeststat clralvalue and tru feelings are becoming orinteet.Nwdays,phonecals nd essages lp get i ouch with therIt means tht weseldomwrite etters ow.Buta V ow,Letters lve 《见字如),i bringng back hs old habi.waku a microphone o singWhichis t best tite orthe pasae?Leters Alie nvites famous atorn acrsses,but terearen funn oes rcmpettions.Its json erowlkng up to a microponeand reding letter The lettes were witteny plerom dfferent ties in istoy.Fo exampe in one pero,they read a lette writteby faus ter XiaoHong o yongerbother 1941.The etter shows at Xiao Hong mised er brothe so mch nd ha gret hopesf his uture.r.doubt botTo.etter Make UsCommuicaeThe heat ofthe wites' cne toced by rding leters.Lterslive is not populr enough to incs.howno intret inWelcoe t Or Cultrl TV ShwsLettrs Alive,a TV sowves famous people o.Accordin the pasage,hic setne is RIGHT?te adiences joesdslikeread nshare lttershone Hav TakenthePlace f etersow mny cural TV shows rethere in the pasg?Culural Shs Are Becoing Poular32.(5分)Whichofthe followng str acrding othe passage?DUser keees of famu people for fun.五、口语表达(每小题5分,共10分)A)根据对话内容,从方框七个选项中选出五项能填入空白处的最佳选项.B)根据对话内容,在空白处填入一个适当的词,补全对话.34.(5分)Carl:Wht as wron ihyou?et:Oh I se.That a rel terrbe.I ws so tie on Apri Fool's DayBet:The tenex dy I fundthy ad fooled m.We didn' avea test.Bet:Myfinds tme that wewere gng to have a mathtest thenet ay.Ituied the nigt ndwastired ou.Bet:i Carl! was yor pril Foo'sDa?Carl Wat hppened et?Bert:Tha soud god.hy do ou sayit was terile?CarlHaha We had a ea Aprl Foo'sDay!六、综合填空(每小题7分,共7分)35.(7分)阅读短,从下面方框中选择正确词,其适当形完成下面的文.Zhang,32,as ornina pooamil in Henan.henhw litle,a fever gaehim cerebral palsy.At the age of 6,he col nolongr std up Hsaentstie two bamb sis betw wo trees.Dy after ay,he hethe sticks opacice.N matter hevy snow,teas or pains he suck og tat.cold top hm At9,e was abe to wal wit th help fa wlig stc.H vercae all e diffculis t shool.In 2006,he bme a graduate studnt.His dreas hi furher.He hped o ge a doctorate dgre,bt mos profess(trned him don fter heaing abut his ilness.Finaly,oeorFan Xiozhong from ejing Inttute ofTechnology pened a oor for Zhang.wt reat y .If yucan pass eexams ll y ou canstudy wth mefor our docor's ores Fan said.Zhngpassd al te exa.I' nt as strong as you tik Ijt ork hrd on what I shld do and what In o.Onl ret eorts n change our (7)," Zhngsad.七、任务型阅读(每小题10分,共10分)36.(10分)Wh does " refer o (指代)in he psage?务二请处横线上根据语示填入恰当的词.ls considered avemy fiends.My esearc sttd.A frst,Inoticdtere ere n ottles,lastic bags nd er kinds ofbih in the wate.TenI wen nI ot closer nd noticed a man uring soeting plluted into th wtr.It feeverwhere Other peoplsw him do this and tey olled hm I foud t it __ ____ (闻起来奇怪)Ten asted it.mae me fel terrible.I hated it!I relly waedo telltem at it was kiligus!But I coudnt.thk iti sosupidofpople to bad hings to the eath hatthey re livng on an'tundetand why heyare doing tse Peole hold car bot the vironme.If they tha,we will not haeanythingto wor abut.suggs they tae yadvice.I so,我相信每一人将过上幸福生.Oeresh sunn ay,wile I wasswming in the wter,lt somthgspecial goi throuh mygill 鳃)It ws a different kndof water.Ilsofound many of frien ecame sckSome of thm wer dyngbgn to wor ecase I ddn't want t ge sick or ie.I lso consire wht Ishould do to save myfrieds.So Iide t o some reearch fr my underwate life.任务一写出处句子的句.任四请简略回答问题.八、书面表达(A部分每小题2分;B部分15分.共23分)A)完成句子.(每空一词)37.(2分)那首用二奏的乐曲尤其使我感.The musc whhwas o he erhu oved m.38.(2分)孩们越早会独立对他们未来就越好.The id learn o be,the ette it s fo ther ftue.39.(2分)趁来,立刻采取行动!at one befre i's tolae!40.(2分)许多次我都想弃,我奋力坚持下来Many tim I thoug bout up butIfought.B)文段表达.41.(15分)英语报正在开展题为"The GetestHelp"的征活动.什人或给了你大的帮助?你取得了哪些?什么感想或受些教育?写一篇80左右的英语短文进行稿,文中不得出现真实名姓名.2018年青海省西宁市中考英语试卷参考答案与试题解析一、听力理解(每小题1分,共20分)第一节听对话,根据对话内容和所给问题,选择正确图片.1.(1分)hats wron wit Pete?【解答】略2.(1分)herees the oman'sbrother wok?【解答】略3.(1分)How dos hgir usually g t the piano lss?【解答】略4.(1分)Whih fstivlare tey talkng abou?【解答】略5.(1分)hich ones T Tony' way to suy nglish?【解答】略第二节听对话,根据对话内容和所给问题,选择正确答案.6.(1分)Deg Wn.Whoi e writer of he ook?Mary.【解答】略7.(1分)Ho will tha help the sick ds?Give hemmony.Hp te with teir schoolork.【解答】略8.(1分)What doesthewom think of h empor?e does' like him tall.he oesn't min him.【解答】略9.(1分)How od is Ales no?Telve.Tweny﹣tw.【解答】略10.(1分)Hw many countres a metionedithe ialog?Si.Seen.【解答】略第三节听长对话,根据对话内容和所给问题,选择正确答案.11.(2分)Toby ew balls f Jack.Ys.does.hydoes h bo orrow money frm hs mom?o.he osn't.Tobuy newalls for melf.Doe the boyhv alls?To treat ak a ine.【解答】略12.(3分)Te spakers may be wifed sband.The woman alwayslys ompr ames.Actor.Wh doyou think thtwomen's job ar inthedilog?Rnner.n the stre.听一段话回答下面各小.On the bway.In tehouse.The man alway ply wit hioil phone.【解答】略第四节听短文,根据短文内容从A、B、C三个选项中选择正确答案,完成信息记录表.13.(5分)ette halt careAnurses at th hoe300A.or yong babies.hedoctorsThe youngdosworers at thehebabiesotheolder oesA100henursesorenurses【解答】略二、单项选择(每小题1分,共15分)14.(1分)﹣﹣Do like the movie Aazing CinIts_______ eductiona movie.﹣﹣Yes I like it er mucandI am ey poud _____ourcountry.()A.a;in B.the in C.a:f D.a;of【解答】根据It's_______ eduationa ovi,可知一空表示泛指一部教育片,edcational 音以音音素开头,故n ,第二空是固定短语epu of为豪.故选:15.(1分)﹣﹣Tony olyshorter tha Jim,rght?﹣﹣Yes,is ________ udentinisclas.()A.the snd tallest B.te to tllestC.end tallest D.twotallet【解答】根据e is________ stuet inhi clss,可知考句型t+序数词+形容词最高,表示…,是固定句型.故选:16.(1分)He an't efuse o ifyuask _____.()A.slently B.quiety C.poltely D.ludly【解答】ilent默地;quiety安静地;politely有礼貌地;lodl声地,根He can refuse ou f yo ask ,知如果你彬彬礼地问,他是会你.故选:17.(1分)﹣﹣Hi ny! _________ yo _______ to the newly﹣oenedshoppingma,Tangao laely?﹣Yes.en there with my parens lastwk.()A.id;go B.Hve:been C.Have one D.Do:go【解答】根意:﹣嗨,托! 你最近去过新开的购中心,ago 637吗?﹣﹣﹣是的.上星期我和我的父去了那里.可知强的是曾去过某地",avebento.而e gone o 表示已经去某地,人没回来.故选:18.(1分)We panned t met at 10:30athe staion yesterd,bu Bobdid't _________untl 10.()A.turnup B.stay p C.how up D.grw up【解答】AB熬,脱掉,C出现,露,D成长;根据意"我们原计划昨天0:在车站见面,鲍一直到11点才出现可知,填"出现露"其它选项语意不通.故选:19.(1分)﹣﹣Xnng Sur Resort夏都),hasrienl peope and _______ weathe.﹣﹣es.I hope _______ me turists cing her tonjo ther col sume()A.a peasat;here il beB.leasa;hre will hayC.plesant;thre wl haveD.leasant;hre will be【解答】peasat令人的,如果前面加a的,意思是"一件人快的事"there wll be将要有的是存在的有"是在某地有什东西tere il ave扰项,e指的是某人"".根据"friendlypeope nd ______ wether知用形容词来修饰wther又根据"I hoe ________ ore turists coi here 此可知这句话的意"﹣﹣宁,夏都,有友好的人们和令愉快的天气.﹣﹣是的,我希望将会更多客来这里享受凉的."故选:20.(1分)Mile's oth ________ her be a great dacer lik r.)A.opes B.wrns C.wnts D.maks【解答】ope;wan警;wan;make制.根据"Mile' mother ________ h t be a readncer "因此可知这句话的意思是米莉妈妈想让她成像样的伟大的舞蹈家."故选:21.(1分)﹣﹣Lia,do't let ______ .am to by to etanyone this omig.﹣﹣Ok.I______.()A.noboy;ill B.anybody;n'tC.seody;don't D.anybod;dn't【解答】obody没有人anybody何人;omeodywi将要;won't将不;dont不.据I mtoo buy to meetanonethis momn"此可知这句话的思是"﹣﹣丽,不要让任何来,我今天早太了,能会见任何人.﹣的,我不会让任何人进来的"任何人的到来是在这句话发生之后的事情,所以要用般来时来填空.故选:22.(1分)t's tie to say godbye to myscoo.I'll everforget heday____ pent together ()A.tht B.wat C.who D.whn【解答】hat个,在定语从句中主语或宾语;wat么,不引导定语从句;who谁;hen么时,在语从句中作语根据行是das,又"______we spent togethe"可知需个可以在定语从句中作spent宾语的引导词,此可知句话意思是"是时候学再见.永远了我们一起度过时光."故选:23.(1分)﹣Thanks ___our government,we caplay otsad on henew playgrnd xt wee.﹣Tht'so sure!Andwe'lave a spots meting _____onemonh.)A.or;in B.to;in C.or;fter D.t;afer【解答】结合语可以断这话表达的意思是﹣﹣亏了我们政府,我们下星可以新的操上运动了.确实是样,而一个月后们将动会.﹣﹣确实是这样,而且一月后将举行运动会",所以第一个空处的介词短语表达的意思"亏了",应该用haks to,第二个设空处表示一间以后,用于一般将来,用"i+时间段"B24.(1分)﹣Mr.Wa,I he troule ______ the text.Could yhelp me?﹣Certanly is,remeber ________ it three imesa least.Then,Iill el yu mor.()A.to undestn reading B.uderstading;eadingC.undersandin;toead D.t unrstand;to read【解答】根据I hav touble ____ thetext,知这里考查hve trouble doing t表示有困某事而remebe t do sth表示得做某事eembe doing sth记做了某事,这里情该还未做用rememer to st.故选:25.(1分)﹣﹣Do't be sy Frein ill not laug at ou._______,theywillencourge ou.﹣Thans r your minding and suppt()A.nstead B.So C.Or D.Nor【解答】insd相反;so因此;or否则;or也不.据Foeigners ll nt laugh at you _______,theywllecorageou.可知国不会嘲你,相,他们会鼓你.故选:26.(1分)e coudn't find out ____,so we wroteLos andfon".()A.whoe it ws bke B.whos bikit wasC.wose bik wasit D.whose as it ke【解答】据W couldn't findout 可知本考查宾语从句,语从句中一般为陈述序,项C是疑问序所排掉项Abike应该放在hose后面.故选:27.(1分)﹣_________ bigucesthefashon show is!﹣﹣Yes it's ralyfaasic.()A.How B.Howa C.Wht D.hat a【解答】英语的感叹句要由what和how来引,其句是:How+形容/副词语+语+其!Wht+(a/an)+形容词+词主语谓语+其他!根据所的词容词big,名词suess 可数名单数,bg以音音的,需要加冠词a,应hat来感叹.故选:28.(1分)﹣Woul ou mnd tunng up h music?﹣________ Dad is sleepng now)A.Sorr I can't oit B.Ye,pleseC.No,no aall D.O.I wil【解答】A我不能,B是的,请,C不,一也不,D好的,我将要根据上句"你意把乐开大点吗?"和"爸爸在觉"知,要用起,我不"回答.它选项语意不通.故选:三、完形填空(每小题10分,共10分)29.(10分)ut the jelly bck o he shef.No longe asit sta pt ofelly.(10)C its er,y mother would alwys lie on.Or chlden grew up o petbuter (花生酱)and ely (果酱)ndwiches.Thedeliious jelly ade e D,an homemade was te st choic.wsn'tth elly mar in thibg amily.My B wast w alwy there.Jell making was js a waof lifforher.SheA di ifollowig te same seps﹣fro picn t fruitto sttng the fnished elly n the shlf.A.anry disppointed pleased sdA sster faher husand mothr A.never aways hrdly eldomA.divie sell sare wasteA.r away ook out tre away t away A.seached creaed discoerd ralzed(7)A.r nd but so(8).hair emries hands ead(9)A.beatng piking kssing sreding10)A.As on as Asfar as s wll as Asson as【解答】6.考查动词析.A搜索B建立;C发现;D意识到根据后面I had n ai atentiono befo以前没注意,应该是识东西以前没注意,答案是D.5B考语析.A跑开B取出C掉;D好;根Te other day Ith jelly forquick anwich做一个速食三明治,应是拿出,故答案是B.2.D 考查词析.A姐妹;B爸爸;丈妈;根据下文,my mothe lef us oever,离后的一系描述,知是妈做的,答案是D.3.考查副词辨A从不;B总是;C几乎不;D少;根前面Jelly makinas jst a wy f life for her.做果酱来一生式,可知她做的,故答案是B.1﹣5:DA 6﹣10:DCBCA8B 查名词辨析.A头;记忆;C手D;根据后面traele ak to he ld das回到旧时,应该是记忆,故答案是B..C 考查动词辨.A打;B捡;吻;D展开;根saw e ryig on mwding (婚礼.sa her()ad huggig ur childre我看见她我婚上哭泣我看见她()拥抱我们的们,and并列关系,应该还有亲吻,故答案是C.10.考查语辨析.只要;如果;既然;由;B要到… 直到…为止C也,又;……;…之;此外;D一…就;一经,根据t was there my mother woul alwaysliveon.就在那里,我母亲活着,应该是只要它儿,永活着,睹物思人故答案是.四、阅读理解(1-10题,每小题10分:11-15题,每小题10分.共25分)30.(10分)You may know thnglish letes,and Cu do yo know there are peple ledABCs You a lik eting nans But do youknow ther are uch peoplwithheame of "bnaaeon"?Are these peop fro "anther panet (星球)"?No.They are jus Chinee people lie u ad m.thy wee bor inChna ugo t study in Ameicawe dn' like himABCmeas merican﹣born﹣Chiese.n ABC hinese,but asborn inhe UniedStates.oeimes,peole call A a "banna person".anana is yelow otsieanwieinside.S "banaa prson"is hte insid ﹣﹣thinking lie a westener an yelow ouide ﹣﹣okinglka inese."ABC" in hs pasae mes "C".Do ou knowwh Usull,ABCs knw ltle about China or Chieseanguage.osof the do' spek Cinese.Als,thy are nt ireted in Chinese poltics (治).Bt ifACscant speak Chnese.cn we stillcall hem Chins ppe?Yes,course TeyareCise Theyarevrses (海的)Cnese.Thesepple may be citizens (公民of other counrelik te US,Cnada Singare.But thy hve Chines lodTheir arnts,grandparens o eegrt﹣rndparenswer from Chna.heyll hablack eyes and blackhaiut the are notCinese ctien Tey are not pople o hina.For xample,weall know the famu scietist C.N Yng (振宁.Heot theNbel rie in Physics in 1957.Cispople ove hm.Bt he is Amerin citizen.洪水血统Amercahines aren't ChineseciiznstreeEnglishettersteNobelPrizeThis passg anlytalks abot B.their bdiesaehite inside bt llow outidehinese bonin eern coutres ae calle "bana ersons" bcause A.C.N.Yang is ntioned ere to so at C.thy werbo in Americabt ok in ChinaChiseborn﹣Ameicathy think like westerer bt loo ikeCieeknd of anana血样thmeaningof "AB"【解答】47.B.:推断题.根据文中Sometmes,peope ll a ABC a "bnaa prson".A bnana is yellow ouside.o,hn a pers isa banana,he orse ishe inside﹣hikin ikea Weserne an yello utsid﹣kin lke a Cinese,知有时候人们称AC为香蕉人.蕉外面黄的所以香就是里是白色的即像西方人那样的考;而外面是黄色像中国人一样故这里的香蕉人是来比喻这些有着人的外却有着西方人思想的.故选B.48A.词义猜测题.根据文章中But he e Chinese looTher parents,rdparentsor e get ﹣grndprents re fro China.Theyal hvebla eyes and black hair.,们国人血,他们的父母、祖甚至曾祖母是中国人.们都有色的眼睛黑色的头发.由我可以猜测,这些人虽然不是国人,但他们有中国人的血统.选A.46﹣5 CBCD49.C细节解题.根文章后一段Bt the re no Chins citizens,可知,他们不是中国公故选.50.D主旨大意题.据You may nw the Enlish ltters A,B an C.Bu doyo kwthee are poplecaed ABCs及下,知这篇文章主要为我们讲述的是BC,海华人.们有着中国的血统,人,但却不是公民.故选D.31.(10分)Four.Besies eerAlive,soe or ltural TV sws have aso een well eceived y Chinee auinces.ineseoetryonfrene isa tradtional hese poetry comptition.n Readrsivite pepl t readems and articles hey lik or wroe.Ituggeststat clralvalue and tru feelings are becoming orinteet.Nwdays,phonecals nd essages lp get i ouch with therIt means tht weseldomwriteetters ow.Buta V ow,Letters lve 《见字如),i bringng back hs old habi.waku a microphone o singWhichis t best tite orthe pasae?BLeters Alie nvites famous atorn acrsses,but terearen funn oes rcmpettions.Its json erowlkng up to a microponeand reding letter The lettes were witteny plerom dfferent ties in istoy.Fo exampe in one pero,they read a lette writteby faus ter XiaoHong o yongerbother 1941.The etter shows at Xiao Hong mised er brothe so mch nd ha gret hopesf his uture.r.doubt botTo.etter Make UsCommuicaeThe heat ofthe wites' cne toced by rding leters.Lterslive is not populr enough to incs.howno intret inWelcoe t Or Cultrl TV ShwsLettrs Alive,a TV sowves famous people o B.Accordin the pasage,hic setne is RIGHT?Cte adiences joesdslikeread nshare lttershone Hav TakenthePlace f etersow mny cural TV shows rethere in the pasg?ACulural Shs Are Becoing Poular【解答】4.A理解题.根据一BesidesLeters Alive,somoerculturalTshow have so enwll receivd by Chese audienes除了《字如》外,些他的文化电视节目也受到了中国观众的欢迎.知,国观众喜欢这些文化电视目.选A..B.细节理题根据第二段Leters Alve nitsfaous atos and ctreses,but there ae no fnny joke or comptitos.t's just ne person walkin p tamcrophon and rding leter《见如面》,引著的男演员,但是没有有趣的笑话或竞赛.只有个人走到风边一封信.知,是和分信.选B.3.C.细节理题.根最后段Leters Alive《见如面》hinese oey Conernce《中国诗大会.Readers朗读者》可共3个节目.选C..D.标题测题.根据最后段eideLers Alive,some othercutural shows have also been wll ecived byhinse diences了《字如面》外,一些其的文化电视节目也受到了中观众欢迎.可知,标题以"文化电视越来行.D.32.(5分)Whichofthe followng str acrding othe passage?ADUser keees of famu people for fun.【解答】1.B 细节推理题.根据句Itis probalno exgertion 张)t sy at,te ds anyne who uses Weat or QQ asoues mmes.可以说任何时候,使用微或QQ都会使模因.和后句Meme ae usuall pictures r GFs(动图)of faou eople,and film scene.They re often paired it line o wrds exlainng the pictres模因通常是名、电视和电场景的图片或IFS,它们经常与行解图词.可知结合选项,说模或表中国人的网上聊天变得很重故选B.3.D细节推题.前句Onth oher handmmes ake online messaing chattng loseto allfe thanust sendi text message另一面,因使在线消息更接近真生,而不仅是发送短信.结合选项,说为他们以一更简单、更有趣、更清晰方给人们提供信息故选D.2.A 细节推理题.根据前句Youmust hve seen the ees f sinr Huag Ziaowithhs famus wods Iillnot de easily你一定看过歌家子韬的模因:我不轻易.可知合选项,说黄的模因用户的最爱之.选A.5.D 细节推理根据第二段句子Othersinud actor hou Jie shoutig with anr and basetball plaer YaoMiglugig u looking lie cyg If thereis someting icommo with tese eole,it i prable thattheylavxagraed acialexpressons.Usrs mke mees ofthem forun.其他演员包括演员周杰愤怒地大喊大叫,球动员姚明笑着,看起来像哭如果和这些人有什么共同之处,他们能都夸的面表情.用户会他们作模因.可结项,说用户会名的模因得有趣.选D.五、口语表达(每小题5分,共10分)A)根据对话内容,从方框七个选项中选出五项能填入空白处的最佳选项.B)根据对话内容,在空白处填入一个适当的词,补全对话.34.(5分)Carl:Wht as wron ihyou?et:Oh I se.That a rel terrbe.I ws so tie on Apri Fool's DayBet:The tenex dy I fundthy ad fooled m.We didn' avea test.Bet:Myfinds tme that wewere gng to have a mathtest thenet ay.Ituied the How nigt ndwastired ou.Bet:i Carl! invited was yor pril Foo'sDa?Carl Wat hppened et?Bert:Tha soud god.hy do ou sayit was terile?CarlHaha We in had a ea Aprl Foo'sDay!【解答】2invied.考查词.句"我的一个朋友_参加一个妆会".iie sbto…"邀请人".一般过去时态,谓语动词用ivite的过式invite邀请.1.How考查问词.意"你愚人节过得__?".根据下一twas trril太糟糕了知,应该是"怎么样",用问词ow.4.hole考形容.句"我学习了_筋疲力".据上一句y fren old me that we were goingto have amath test he nextay我朋友诉我二天们要进行一次数学.知,应该是he whole ght一晚.填whle.5.oth.副词句意我们_度过了真正人节!".根据CarlBert知,应该是"两者".填both.六、综合填空(每小题7分,共7分)35.(7分)阅读短,从下面方框中选择正确词,其适当形完成下面的文.Zhang,32,as ornina pooamil in Henan.henhw litle,a fever gaehim cerebral palsy.At the age of 6,he col nolongr std up Hsaentstie two bamb sis betw wo trees.Dy after ay,he hethe sticks opacice harder.N matter hevy snow,teas or pains he suck og tat.walking cold top hm At9,e was abe to wal wit th help fa wlig stc.H vercae all e diffculis t shool.In 2006,he bme a graduate studnt.His dreas Nothing hi furher.He hped o ge a doctorate dgre,bt mos profess(trned him don fter heaing abut his ilness.Finaly,oeorFan Xiozhong from ejing Inttute ofTechnology pened a oor for Zhang.wt reat y pushed.If yucan pass eexams ll y differently ou canstudy wth mefor our docor's ores Fan said.Zhngpassd al te exa.I' nt as strong as you tik Ijt ork hrd on what I shld do and what In o.Onl ret eorts n change our (7)yourself," Zhngsad.【解答】6.yuself.查反身代."先说,如果能__通过考试,你可和我一起学习的课程.".根据所给单词,byonelf自行.固搭配.由yo可知,yours用反代词yorself你自己.1.arer.考查比较.句意"于的人来说___"根据句Toet a docoate (博士)degreis ot n easy thing得博士学位不是件易的事.所给词,可知,应该是"难的",ven 修饰hard比级arder.5differet.查副.句意"我不会以___方对待你"根据上一句inaly,Professr an Xiazhongfrm Beiing Initute of cnolgy opened aoor for Zhang最,理工大学的樊孝教授张老师打开了一扇.及所给单词,可应是不地".修饰动词dffen的副词diferently.Nothing.查定代词句意__能止他".根上一句N matter hvy snow tear orpinse stuck t ong that不管大雪,眼泪是苦,他坚持这样做.及所给单词,,该是"没有事情".不定代词Nothng.7.lives.考查名词.句只有巨大力才能改变我的_"据所给单词知,应该是"生活.由ur我们的,可知,用lie的复数livs.七、任务型阅读(每小题10分,共10分)36.(10分)Wh does " refer o (指代)in he psage?what务二请处横线上根据语示填入恰当的词.ls considered to do to smelt/smelled avemy fiends.strangeMy esearc sttd.A frst,Inoticdtere ere n ottles,lastic bags nd er kinds ofbih in the wate.TenI wen nI ot closer nd noticed a man uring soeting plluted into th wtr.It feeverwhere Other peoplsw him do this and tey olled hm I foud t it __ ____ (闻起来奇怪)Ten asted it.mae me fel terrible.I hated it!I relly waedo telltem at it was kiligus!But I coudnt.thk iti sosupidofpople to bad hings to the eath hatthey re livng on an't undetand why heyare doing tse Peole hold car bot the vironme.If they tha,we will not haeanythingto wor abut.suggs they tae yadvice.I so,我相信每一人将过上幸福生.Oeresh sunn ay,wile I wasswming in the wter,lt somthgspecial goi throuh mygill 鳃)It ws a different kndof water.Ilsofound many of frien ecame sckSome of thm wer dyngbgn to wor ecase I ddn't want t ge sick or ie.I lso consire wht Ishould do to save myfrieds.So Iide t o some reearch fr my underwate life.任务一写出处句子的句.任四请简略回答问题.I believe everyone will live a happy life.【解答】.smelt/sled strang 汉译英题根据汉语意思:闻来mel,时态为一般过去时smelledsmel;奇的srange故答案..hat;;do;t 句型转换题根据题干,可知是what引导的语从句,可转化疑问词接不定式:hat tdo;o sv是不式表目的,故出答.4 fish.细节解题根据I fl omething pecial going thug y gills我感觉到有什么别东西在我的鳃里,出我是指一鱼故得出答案.5Pele sold rotect th nionment.节解题,根据最后一段Peopl houldcreabout the environmn,可知人们应该关心环,故出答案.八、书面表达(A部分每小题2分;B部分15分.共23分)A)完成句子.(每空一词)37.(2分)那首用二奏的乐曲尤其使我感.The musc whhwas played o he erhu especially oved m.【解答】根据可知主语是作的承受者,动词结构为be+过去分词,用副词饰动,eseially尤其.故案为plye;especial.38.(2分)孩们越早会独立对他们未来就越好.The earlier id learn o be independent,the ette it s fo ther ftue.【解答】据干可知,考查句型the+比级the+比较级,表"越,就越"erier更早;ndependent立.故答案为earier;iendent.39.(2分)趁来,立刻采取行动!Take action at one befre i's tolae!【解答】根题,可知需要翻译的是"取行动",其英文表方是" ae acton",子祈使句,以动词形开头,故答案Tae action.40.(2分)许多次我都想弃,我奋力坚持下来Many tim I thoug bout giving up butIfought on.【解答】根据题干,要翻的是" 放弃",继斗",英文表达方是" give up" fight n,aout后接名词,故案为giving;o.B)文段表达.41.(15分)英语报正在开展题为"The GetestHelp"的征活动.什人或给了你大的帮助?你取得了哪些?什么感想或受些教育?写一篇80左右的英语短文进行稿,文中不得出现真实名姓名.I have got lots of help,but my father gives me the greatest help of all.Though my father is a very kind man,he is very strict with me.He always pushes me to study hard and tries to find mistakes in everything I do.Sometimes,I doubt if he is my father.He leads me to read plenty of books.He says,"the more books you read,the better person you will be." He also says that health is the most important thing for everybody.So I am made to do lots of exercise.Anyway,we have left our happiness and laughter everywhere,on the playground,in the swimming pool,on the mountains and so on.When I meet any difficulties,he encourages me and helps me out.He is always there for me.As I grow older,my thoughts change from misunderstanding to understanding.He is not only my father and a sincere friend but also my guide and helper.I will never forget the greatest help and deepest love from his strictness and expections because they make some big difference in my life.【解答】I hve g ots of hel,bt my faher gves me the rea hlp f all.(起下文)Toug my ather i a ey ind man,he ry strict wit me H alwys pushs me tosudy ha and trestofind mtakes inethig I do.Somtimes,Ioub if he s myfather Hesm o rea pent o bos.He ys,"themoe bks yo rad,the beer prsonyo ill e.He alsosays tht health is the mos impra thin r eryboy.(亲So I am de do lots f xercis.Anyway,w hav le ou ppines nd laughter everywher,onth playground,in the swimming pool,onthe mountains and soon.We Imet any difficulis,he ncorages me an help eout【高分句型一】His alwys hre fr m.(取得的进步)As I gow older,my thoughtschangfro misundertningto undersading.He is not only my far an asinceriendbt also guidend heler 【高分句型二will eve frgetthe grest help and eeest lov rom is strines n exctions bausehemake some big dfferece。
青海省西宁市2018年中考英语试题第I卷(选择题)一、听力理解二、单项选择1. -- Do you like the movie Amazing China? It's ________ educational movie.-- Yes. I like it very much and I am very proud ______ our country.A. a; inB. the; inC. a: ofD. an; of2. -- Tony is only shorter than Jim, right?-- Yes, he is ________ student in his class.A. the second tallestB. the two tallestC. second tallestD. two tallest3. He can't refuse you if you ask ______.A. silentlyB. quietlyC. politelyD. loudly4. -- Hi, Tony! _________ you __________ to the newly-opened shopping mall, Tangdao 637 lately?-- Yes. I went there with my parents last week.A. Did; goB. Have: beenC. Have; goneD. Do: go5. We planned to meet at 10: 30 at the station yesterday, but Bob didn't _________ until 11: 00.B. stay upC. show upD. grow up6. --Xining, Summer Resort (夏都), has friendly people and _______ weather.-- Yes. I hope ________ more tourists coming here to enjoy their cool summer.A. a pleasant; there will beB. pleasant; there will hayC. a pleasant; there will haveD. pleasant; there will be7. Mille’s mother _________ her to be a great dancer like her.A. hopesB. warnsC. wantsD. makes8. -- Lisa, don't let _______ in. I am too busy to meet anyone this moming.-- Ok. I _________.A. nobody; willB. anybody; won'tC. somebody; don'tD. anybody; don't9. It's time to say goodbye to my school. I'll never forget the days ______ we spent together.A. thatB. whatC. whoD. when10. -- Thanks ________ our government, we can play sports on the new playground next week. -- That's for sure! And we'll have a sports meeting _________ one month.A. for; inB. to; inD. to; after11. -- Mr. Wang, I have trouble ________ the text. Could you help me?-- Certainly. First, remember _________ it three times at least. Then, I will tell you more.A. to understand; readingB. understanding; readingC. understanding; to readD. to understand; to read12. -- Don't be shy! Foreigners will not laugh at you. ________, they will encourage you. -- Thanks for your reminding and support.A. InsteadB. SoC. OrD. Nor13. We couldn't find out _______, so we wrote a "Lost and found".A. whose it was bikeB. whose bike it wasC. whose bike was itD. whose was it bike14. -- __________ big success the fashion show is!-- Yes, it's really fantastic.A. HowB. How aC. WhatD. What a15. -- Would you mind turning up the music?-- _________. Dad is sleeping now.A. Sorry, I can't do itB. Yes, pleaseC. No, not at all三、完形填空Our children grew up on peanut butter (花生酱) and jelly (果酱) sandwiches. The delicious jelly made them ___16___ , and homemade was the best choice. I wasn't the jelly maker in this big family. My ___17___ was. It was always there. Jelly making was just a way of life for her. She___18___ did it, following the same steps-from picking the fruit to setting the finished jelly on the shelf.In April, my mother left us forever. We decided to ___19___ potted things in the house. Each of us chose from the many pots of tomato juice, green beans and jelly. The other day I ___20___ the jelly for a quick sandwich. I suddenly ___21___ something that I had not paid attention to before. This was the last pot we would have from my mother's loving hands. Our children had never known a day without their grandmother's jelly. It seemed like such a small thing, ___22___ it was a great treasure. Holding the last pot in my hand, my ___23___ traveled back to the old days. I saw her crying on my wedding (婚礼). I saw her ___24___ and hugging our children.I put the jelly back on the shelf. No longer was it just a pot of jelly. ___25___ it was there, my mother would always live on.16. A. angry B. disappointed C. pleased D. sad17. A. sister B. father C. husband D. mother18. A. never B. always C. hardly D. seldom19. A. divide B. sell C. spare D. waste20. A. ran away B. took out C. threw away D. put away21. A. searched B. created C. discovered D. realized22. A. or B. and C. but D. so23. A. hair B. memories C. hands D. head24. A. beating B. picking C. kissing D. spreading25. A. As long as B. As far as C. As well as D. As soon as四、阅读理解AYou may know the English letters A, B and C. But do you know there are people called ABCs? You may like eating bananas. But do you know there are such people with the name of "bananapersons"? Are these people from "another planet (星球)"? No. They are just Chinese people like you and me.ABC means American-born-Chinese. An ABC is a Chinese, but was born in the United States. Sometimes, people call an ABC a "banana person". A banana is yellow outside and white inside. So, a "banana person" is white inside -- thinking like a westerner and yellow outside -- looking like a Chinese.Do you know why? Usually, ABCs know little about China or Chinese language. Most of them don't speak Chinese. Also, they are not interested in Chinese politics (政治). But if ABCs can't speak Chinese. can we still call them Chinese people? Yes, of course. They are Chinese. They are overseas (海外的) Chinese. These people may be citizens (公民) of other countries like the US, Canada or Singapore. But they have Chinese blood. Their parents, grandparents or evengreat-grandparents were from China. They all have black eyes and black hair. But they are not Chinese citizens. They are not people of China. For example, we all know the famous scientist C.N. Yang (杨振宁). He got the Nobel Prize in Physics in 1957. Chinese people love him. But he is an American citizen.26. "ABC" in this passage means "_________".A. a kind of bananaB. three English lettersC. American-born-ChineseD. Chinese-born-America27. Chinese born in western countries are called "banana persons" because _________.A. their bodies are white inside but yellow outsideB. they think like westerners but look like ChineseC. they were born in China but go to study in AmericaD. they were born in America but work in China28. The underlined word "blood" may probably mean _________ in the passage.A. 血统B. 洪水C. 血样D. 流血29. C. N. Yang is mentioned here to show that __________.A. American Chinese are greatB. Chinese people can win Nobel PrizeC. American Chinese aren't Chinese citizensD. we don't like him30. This passage mainly talks about _________.A. ChineseB. the Nobel PrizeC. the story of C. N. YangD. the meaning of "ABC"BNowadays, phone calls and messages help us get in touch with others. It means that we seldom write letters now. But a TV show, Letters Alive (《见字如面》), is bringing back this old habit.Letters Alive invites famous actors and actresses, but there are no funny jokes or competitions. It's just one person walking up to a microphone and reading a letter. The letters were written by people from different times in history. For example, in one period, they read a letter written by famous writer Xiao Hong to her younger brother in 1941. The letter shows that Xiao Hong missed her brother so much and had great hopes for his future."Every letter opens another world for us," according to Guan Zhangwen, the director of the TV show. "We can also touch the heart of the writers'." Since its first period on Dec. 5, Letters Alive has been widely praised. Many audiences (观众) said that it had provided a breath of fresh air to today's TV shows.Besides Letters Alive, some other cultural TV shows have also been well received by Chinese audiences. Chinese Poetry Conference is a traditional Chinese poetry competition. And Readers invites people to read poems and articles they like or wrote. It suggests that cultural values and true feelings are becoming our interest.31. Letters Alive, a TV show, invites famous people to _________.A. tell audiences jokesB. read and share lettersC. walk up to a microphone to singD. take part in different competitions32. According to the passage, which sentence is RIGHT?A. Xiao Hong missed her brother but had no hopes for his future.B. The heart of the writers' can be touched by reading letters.C. Letters Alive is not popular enough to audiences.D. Chinese Poetry Conference invites people to read poems.33. How many cultural TV shows are there in the passage?A. Or.B. Two.C. Three.D. Four.34. Chinese audiences _________ these cultural TV shows.A. likeB. dislikeC. show no interest inD. doubt about35. Which is the best title for the passage?A. Phones Have Taken the Place of LettersB. Welcome to Our Cultural TV ShowsC. Letters Make Us CommunicateD. Cultural TV Shows Are Becoming PopularC阅读短文,根据短文内容,从所给选项中选出能填入空白处的最佳选项,然后完成第60题。