九年级月考试题
浙教版九年级上册数学第一次月考试卷含答案

浙教版九年级上册数学第一次月考试题一、单选题1.如果函数()23231kk y k x kx -+=-++是关于x 的二次函数,那么k 的值是()A .1或2B .0或3C .3D .02.顶点为()6,0-,开口向下,形状与函数212y x =的图象相同的抛物线所对应的函数是()A .21(6)2y x =-B .21(6)2y x =+C .21(6)2y x =--D .21(6)2y x =-+3.一位保险推销员对人们说:“人有可能得病,也有可能不得病,因此,得病与不得病的概率各占50%”他的说法()A .正确B .不正确C .有时正确,有时不正确D .应由气候等条件确定4.如图,抛物线()20y ax bx c a =++≠的对称轴为1x =-,与x 轴的一个交点在()3,0-和()2,0-之间,其部分图象如图所示,则下列结论:()2140b ac ->;()22a b =;()3点17,2y ⎛⎫- ⎪⎝⎭、23,2y ⎛⎫- ⎪⎝⎭、35,4y ⎛⎫ ⎪⎝⎭是该抛物线上的点,则123y y y <<;()4320b c +<;()()5t at b a b +≤-(t 为任意实数).其中正确结论的个数是()A .2B .3C .4D .55.从1,2,3,4这四个数字中,任意抽取两个不同数字组成一个两位数,则这个两位数能被3整除的概率是()A .13B .14C .16D .1126.若二次函数22y x =的图象经过点P (1,a ),则a 的值为()A .12B .1C .2D .47.将抛物线23y x =先向左平移一个单位,再向上平移两个单位,两次平移后得到的抛物线解析式为()A .23(1)2y x =++B .23(1)2y x =+-C .23(1)2y x =-+D .23(1)2=--y x 8.下列哪些事件是必然事件的个数有()()1哈尔滨冬天会下雪()2中秋节(农历十月十五日)的晚上一定能看到月亮()3秋天的树叶一定是黄色的()4抛十次硬币五次正面,五次反面.A .1个B .2个C .3个D .4个9.明明的相册里放了大小相同的照片共32张,其中与同学合影8张、与父母合影10张、个人照片14张,她随机地从相册里摸出1张,摸出的恰好是与同学合影的照片的可能性是()A .12B .13C .14D .1810.二次函数22(3)5y x =--+图象的开口方向、对称轴和顶点坐标分别为()A .开口向下,对称轴为3x =-,顶点坐标为()3,5B .开口向下,对称轴为3x =,顶点坐标为()3,5C .开口向上,对称轴为3x =-,顶点坐标为()3,5-D .开口向上,对称轴为3x =,顶点坐标为()3,5--二、填空题11.抛物线2y x x m =-+,若其顶点在x 轴上,则m =________.12.已知()221m m y m x x -=-+-是关于x 的二次函数,则m =________.13.同时抛两枚1元硬币,出现两个正面的概率为14,其中“14”含义为___.14.二次函数21212y x x =+-的最小值为________.15.二次函数在x =32时,有最小值14-,且函数的图象经过点(0,2),则此函数的解析式为_______.16.已知抛物线的顶点在()1,2-,且过点()2,3,则抛物线的解析式为__.17.如图是抛物线()210y ax bx c a =++≠图象的一部分,抛物线的顶点坐标()1,3A ,与x 轴的一个交点()4,0B ,直线()20y mx n m =+≠与抛物线交于A ,B 两点,下列结论:①20a b -=;②0abc >;③方程23ax bx c ++=有两个相等的实数根;④抛物线与x 轴的另一个交点是()1,0-;⑤当14x <<时,有21y y <,其中正确的序号是________.18.若二次函数223y x x =--配方后为2()y x h k =-+,则h k +=__.19.若二次函数()20y ax bx c a =++≠的图象与x 轴有两个交点,坐标分别为()1,0x 、()2,0x ,且12x x <,图象上有一点()00,M x y 在x 轴下方,在下列四个算式中判定正确的是________.①()()01020a x x x x --<;②0a >;③240b ac -≥;④102x x x <<.20.已知二次函数2()1y x m =---,当1x >时,y 随x 的增大而减小,则m 的取值范围是________.三、解答题21.已知开口向下的抛物线225y ax x a =++-经过点()0,3-.()1确定此抛物线的解析式;() 2当x 取何值时,y 有最大值,并求出这个最大值.22.请你设计一个摸球游戏,要求:()1袋子中要有黄球、绿球和红球三种球.()2摸到球的概率;P (摸到红球)14=;P (摸到黄球)23=;并求出摸到绿球的概率有多大?23.二次函数2y ax bx c =++的图象过()3,0A -,()1,0B ,()0,3C ,点D 在函数图象上,点C ,D 是二次函数图象上的一对对称点,一次函数图象过点B ,D ,求:()1一次函数和二次函数的解析式;() 2写出使一次函数值大于二次函数值的x 的取值范围.24.某活动小组为了估计装有5个白球和若干个红球(每个球除颜色外都相同)的袋中红球接近多少个,在不将袋中球倒出来的情况下,分小组进行摸球试验,两人一组,共20组进行摸球实验.其中一位学生摸球,另一位学生记录所摸球的颜色,并将球放回袋中摇匀,每一组做400次试验,汇总起来后,摸到红球次数为6000次.()1估计从袋中任意摸出一个球,恰好是红球的概率是多少?() 2请你估计袋中红球接近多少个?25.某商场有A 、B 两种商品,A 商品每件售价25元,B 商品每件售价30元,B 商品每件的成本是20元.根据市场调查“若按上述售价销售,该商场每天可以销售B 商品100件,若销售单价每上涨1元,B 商品每天的销售量就减少5件.()1请写出B 商品每天的销售利润y (元)与销售单价()x 元之间的函数关系?() 2当销售单价为多少元时,B 商品每天的销售利润最大,最大利润是多少?26.某市人民广场上要建造一个圆形的喷水池,并在水池中央垂直安装一个柱子OP,柱子顶端P处装上喷头,由P处向外喷出的水流(在各个方向上)沿形状相同的抛物线路径落OP=米,喷出的水流的最高点A距水平面的高度是4米,离柱子下(如图所示).若已知3OP的距离为1米.()1求这条抛物线的解析式;()2若不计其它因素,水池的半径至少要多少米,才能使喷出的水流不至于落在池外?参考答案1.D2.D3.B4.C5.A6.C7.A8.A9.C10.B11.1412.-113.当实验很多次时,平均每抛4次出现1次“两个正面”14.-315.y =x 2﹣3x +216.25103y x x =-+17.③⑤18.-319.①20.1m ≤21.(1)223y x x =-+-(2)52-22.11223.()12123y x x =--+,21y x =-+;()22x <-或1x >24.()10.75;()215个25.(1)y =−5x2+350x−5000;(2)当销售单价为35元时,B 商品每天的销售利润最大,最大利润是1125元.26.(1)2(1)4y x =--+;(2)不计其它因素,水池的半径至少3米,才能使喷出的水流不至于落在池外.。
初中物理-2024-2025学年第一学期九年级物理月考试题(带答案)

2024-2025学年第一学期九年级物理阶段性测试试题一、单选题(本大题共12小题,每题3分,共36分。
)1.用丝绸摩擦过的玻璃棒靠近一个小泡沫塑料小球,则下列说法中正确的是( )A. 若小球被吸引,则小球一定带负电B. 若小球被排斥,则小球一定带负电C. 若小球被吸引,则小球可能带电,也可能不带电D. 以上说法都不对2. 关于电路的知识,下列说法中不正确的是( )A. 为使两灯同时亮,同时灭,两灯一定要串联B. 金属中的电流方向跟自由电子定向移动的方向相反C. 在电路中,电源是把其他形式的能转化为电能的装置D. 一般的电路是由电源、用电器、开关和导线组成的3.比较电流表和电压表的使用方法,下列说法错误的是( )A. 接入电路前要估计测量值的范围,来选定量程B. 接入电路时都要使电流从正接线柱流入,从负接线柱流出C. 接入电路时都严禁将表的两个接线柱直接接到电源的两极上D. 使用前都要检查指针是否对准零刻度线4.当将滑动变阻器的滑片P向右移动时。
图中的哪一种连接方法可使变阻器连入电路部分的电阻增大?( )A. B. C. D.5.给你两根长度相同但横截面积不同的镍铬合金线、一个电源、一只电流表、一只滑动变阻器、一个开关、若干根导线,现需要研究的课题有:①导体的电阻跟它的横截面积的关系;②导体的电阻跟它的长度的关系;③导体的电阻跟它的材料的关系。
由上述实验器材可以完成的研究课题是( )A. 只有①B. 只有②C. ①和②D. ①②和③6.由欧姆定律公式I=UR 可变形得到R=UI,对此,下列说法中正确的是( )A. 通过导体的电流越大,则导体的电阻越小B. 某段导体两端电压为0时,其电阻为0C. 导体两端的电压跟通过导体电流的比值等于这段导体的电阻D. 导体电阻的大小跟导体两端的电压成正比,跟通过导体的电流成反比7.如图,在“探究串并联电路中电流的规律”实验中,灯泡L1和L2上分别标有“3.8V0.2A”和“3.8V 0.3A”字样。
人教版九年级上册数学第一次月考试卷及答案

人教版九年级上册数学第一次月考试题一、单选题1.方程x 2-4x-3=0的一次项系数和常数项分别为()A .4和3B .4和﹣3C .﹣4和﹣3D .﹣4和32.抛物线24y x =-与y 轴的交点坐标为()A .()0,4B .()4,0C .()0,4-D .()4,0-3.把方程x 2﹣4x ﹣1=0转化成(x+m )2=n 的形式,则m ,n 的值是()A .2,3B .2,5C .﹣2,3D .﹣2,54.若关于x 的一元二次方程230x x a -+=的一个根为1,则a 的值为()A .2B .3C .-2D .-15.一元二次方程2x 2-3x +1=0根的情况是()A .只有一个实数根B .有两个不相等的实数根C .有两个相等的实数根D .没有实数根6.某年级举办篮球友谊赛,参赛的每两个队之间都要比赛一场,共要比赛36场,则参加此次比赛的球队数是()A .6B .7C .8D .97.已知抛物线y =x 2+x-1经过点P(m ,5),则代数式m 2+m+100的值为()A .104B .105C .106D .1078.把二次函数y =-x 2的图象先向右平移2个单位,再向上平移5个单位后得到一个新图象,则新图象,则新图象所表示的二次函数的解析式是()A .y =-(x -2)2+5B .y =-(x +2)2+5C .y =-(x -2)2-5D .y =-(x +2)2-59.设1(2,)A y -,2(1,)B y -,3(1,)C y ,是抛物线2(1)y x m =+-上的三点,则y 1,y 2,y 3的大小关系为()A .y 1>y 2>y 3B .y 1>y 3>y 2C .y 3>y 2>y 1D .y 3>y 1>y 210.已知二次函数y =ax 2+bx+c (a≠0)的图象如图所示,有下列4个结论:①abc >0;②b 2<4ac ;③9a+3b+c <0;④2c <3b .其中正确的结论有()A.1个B.2个C.3个D.4个二、填空题11.方程x2﹣4x=0的解为______.12.方程(m-1)21m x++3x+5=0为一元二次方程,则m的值为___.x x+=______.13.已知方程2+-=的两根分别为1x和2x,则12x x243014.抛物线y=2(x-3)2+1的顶点坐标为_______.15.有一人感染了传染性很强的病毒,经过两轮传染后共有625人患病,每轮传染中平均一人传染______人.16.二次函数y=ax2+bx+c(a≠0)的图象如图所示,请直接写出不等式ax2+bx+c>0的解集_____.x2平移得到抛物线m,抛物线m经过点A(﹣6,0)和原点O(0,17.如图,把抛物线y=12x2交于点Q,则图中阴影部分的面积为.0),它的顶点为P,它的对称轴与抛物线y=12三、解答题18.解方程:2670-+=x x19.已知二次函数y=﹣2x2+5x﹣2.(1)写出该函数的对称轴,顶点坐标;(2)求该函数与坐标轴的交点坐标.20.一条抛物线经过点A(-2,0)且抛物线的顶点是(1,-3),求满足此条件的函数解析式.21.已知关于x的方程x2﹣2(m+1)x+m2﹣3=0的两实根为x1,x2.(1)求m的取值范围;(2)如果x12+x22=x1x2+33,求m的值.22.如图,依靠一面长18米的墙,用34米长的篱笆围成一个矩形场地花圃ABCD,AB边上留有2米宽的小门EF(用其他材料做,不用篱笆围).(1)设花圃的一边AD长为x米,请你用含x的代数式表示另一边CD的长为米;(2)当矩形场地面积为160平方米时,求AD的长.23.某商品的进价为每件20元,售价为每件30元,每个月可卖出180件;如果每件商品的售价每上涨1元,则每个月就会少卖出10件,但每件售价不能高于35元,设每件商品的售价上涨x元(x为整数),每个月的销售利润为y元.(1)求y与x的函数关系式,并直接写出自变量x的取值范围;求x为何值时y的值为1920;(2)每件商品的售价为多少元时,每个月可获得最大利润?最大利润是多少.24.阅读下列材料,并用相关的思想方法解决问题.材料:为解方程x4﹣x2﹣6=0可将方程变形为(x2)2﹣x2﹣6=0然后设x2=y,则(x2)2=y2,原方程化为y2﹣y﹣6=0…①解得y1=﹣2,y2=3,当y1=﹣2时,x2=﹣2无意义,舍去;当y2=3时,x2=﹣3,解得x=所以原方程的解为x1x2问题:(1)在原方程得到方程①的过程中,利用法达到了降次的目的,体现了的数学思想;(2)利用以上学习到的方法解下列方程(x2+5x+1)(x2+5x+7)=7.-,与y 25.如图,抛物线2y x bx c=++与x轴交于A,B两点,其中点A的坐标为(3,0)D--在抛物线上.轴交于点C,点(2,3)(1)求抛物线的解析式;(2)抛物线的对称轴上有一动点P,求出PA PD的最小值;△的面积为6,求点Q的坐标.(3)若抛物线上有一动点Q,使ABQ参考答案1.C【分析】根据ax2+bx+c=0(a,b,c是常数且a≠0)a,b,c分别叫二次项系数,一次项系数,常数项,可得答案.【详解】解:x2-4x-3=0的一次项系数和常数项分别为-4,-3.故选:C.【点睛】本题考查了一元二次方程的一般形式,一元二次方程的一般形式是:ax2+bx+c=0(a,b,c 是常数且a≠0)特别要注意a≠0的条件.在一般形式中ax2叫二次项,bx叫一次项,c是常数项.其中a,b,c分别叫二次项系数,一次项系数,常数项.2.C【解析】【分析】求图象与y轴的交点坐标,令x=0,求y即可.【详解】当x=0时,y=-4,所以y轴的交点坐标是(0,-4).故选:C.【点睛】主要考查了二次函数图象与y轴的交点坐标特点,解题的关键是熟知函数图像的特点.3.D【解析】【分析】将常数项移到方程的右边,两边都加上一次项系数一半的平方配成完全平方式后即可得出答案.【详解】解:∵x2﹣4x﹣1=0,∴x2﹣4x=1,则x2﹣4x+4=1+4,即(x﹣2)2=5,∴m=﹣2,n=5,故选:D.【点睛】本题主要考查解一元二次方程的能力,熟练掌握解一元二次方程的集中常用方法:直接开方法、因式分解法、公式法、配方法,结合方程特点选择合适、简便的方法是解题关键.4.A【解析】【分析】根据方程的解的定义,把x=1代入方程,即可得到关于a的方程,再求解即可.【详解】解:根据题意得:1-3+a=0解得:a=2.故选A.【点睛】本题主要考查了一元二次方程的解的定义,特别需要注意的条件是二次项系数不等于0.5.B 【解析】【分析】根据一元二次方程根的判别式24b ac -与0的大小关系,即可得出方程根的情况.【详解】解:2x 2-3x +1=0,2,3,1a b c ==-=,∴224(3)42110b ac -=--⨯⨯=>,∴方程有两个不相等的实数根,故选:B .【点睛】本题主要考查了一元二次方程根的判别式,解题的关键在于掌握根的判别式的应用,即240b ac ->,方程有两个不相等的实数根;240b ac -=,方程有两个相等的实数根;240b ac -<,方程无实数根.6.D 【解析】【分析】根据球赛问题模型列出方程即可求解.【详解】解:设参加此次比赛的球队数为x 队,根据题意得:12x (x ﹣1)=36,化简,得x 2﹣x ﹣72=0,解得x 1=9,x 2=﹣8(舍去),答:参加此次比赛的球队数是9队.故选:D .【点睛】本题考查了一元二次方程的应用,解决本题的关键是掌握一元二次方程应用问题中的球赛问题.7.C【解析】【分析】把P(m,5)代入y=x2+x﹣1得m2+m=6,然后利用整体代入的方法计算代数式的值.【详解】解:把P(m,5)代入y=x2+x﹣1得m2+m﹣1=5,所以m2+m=6,所以m2+m+100=6+100=106.故选:C.【点睛】本题考查了二次函数图象上点的坐标特征:二次函数图象上点的坐标满足其解析式,也考查了整体思想的应用.8.A【解析】【分析】根据函数图象“左加右减,上加下减”可得答案.【详解】解:把二次函数y=-x2的图象先向右平移2个单位,再向上平移5个单位后得到一个新图象是y=-(x-2)2+5,故选:A.【点睛】本题考查了二次函数图象与几何变换,要求熟练掌握平移的规律:左加右减,上加下减.并用规律求函数解析式.9.D【解析】【分析】根据二次函数的对称性,可利用对称性,找出点C的对称点C ,再利用二次函数的增减性可判断y值的大小.【详解】解: 函数的解析式是2(1)y x m =+-,∴对称轴是直线1x =-,∴点C 关于对称轴的点C '是1(3,)y -,那么点A 、B 、C '都在对称轴的左边,而对称轴左边y 随x 的增大而减小,于是312y y y >>.故选:D .【点睛】本题考查了二次函数图象上点的坐标的特征,解题的关键是利用二次函数的对称性得出C 关于对称轴的点C '.10.B 【解析】【分析】①函数对称轴在y 轴右侧,则ab <0,c >0,即可求解;②根据抛物线与x 轴有两个交点,由判别式即可得解;③当x=3时,y <0,即可求解;④函数的对称轴为:x=1,故b=-2a ,结合③的结论,代入9a+3b+c <0,即可得解;【详解】解:①函数对称轴在y 轴右侧,则ab <0,c >0,故①错误,不符合题意;②抛物线与x 轴有两个交点,则b 2﹣4ac >0,所以b 2>4ac ,故②错误,不符合题意;③x =3时,y =9a+3b+c <0,故正确,符合题意;④函数的对称轴为:x =1,故b =﹣2a ,∴2b a =-,由③知9a+3b+c <0,代入得302bc -+<,故2c <3b 正确,符合题意;故选:B .【点睛】本题考查的是二次函数图象与系数的关系,要求学生熟悉函数的基本性质,能熟练求解函数与坐标轴的交点及顶点的坐标等.11.x 1=0,x 2=4【解析】【分析】24x x -提取公因式x ,再根据“两式的乘积为0,则至少有一个式子的值为0”求解.【详解】解:240x x -=,(4)0x x -=,0x =或40x -=,10x =,24x =,故答案是:10x =,24x =.【点睛】本题考查一元二次方程的解法,解题的关键是掌握在解一元二次方程时应当注意要根据实际情况选择最合适快捷的解法,该题运用了因式分解法.12.-1【解析】【分析】把含有一个未知数且未知数的最高次数为二次的整式方程是一元二次方程,根据一元二次方程的概念即可完成.【详解】由题意得:212m +=且m-1≠0解得:m=-1即当m=-1时,方程(m-1)21m x ++3x+5=0是一元二次方程.【点睛】本题考查了一元二次方程的概念,其一般形式为20ax bx c ++=,其中a≠0,且a ,b ,c 是常数,理解概念是关键.13.2-【解析】【分析】方程()200++=≠ax bx c a 的两根分别为1x 和2x ,则1212,,b c x x x x a a+=-=根据根与系数的关系直接计算即可.【详解】解: 方程22430x x +-=的两根分别为1x 和2x ,1242.2b x x a ∴+=-=-=-故答案为: 2.-【点睛】本题考查的是一元二次方程的根与系数的关系,掌握“一元二次方程的根与系数的关系”是解题的关键.14.(3,1)【解析】【分析】由抛物线解析式可求得答案.【详解】根据二次函数的性质,由顶点式直接得出顶点坐标为(3,1).故答案是(3,1).【点睛】本题主要考查二次函数的性质,掌握二次函数的顶点式是解题的关键,即在()2y a x h k =-+中,对称轴为直线x=h ,顶点坐标为(h ,k ).15.24【解析】【分析】根据题意列一元二次方程,解方程即可【详解】设每轮传染中平均一人传染x 人,则第一轮有(1)x +人感染,第二轮有2(1)x +人感染,根据题意可得:2(1)=625x +解得:1224,26x x ==-(不符题意,舍去)故答案为24【点睛】本题考查了一元二次方程的应用,解一元二次方程,根据题意列出方程是解题的关键.16.1<x <3【解析】【分析】直接写出抛物线在x 轴上方所对应的自变量的范围即可.【详解】解:不等式ax 2+bx+c >0的解集为1<x <3.故答案为1<x <3.【点睛】本题考查了二次函数与不等式(组):对于二次函数y=ax 2+bx+c (a 、b 、c 是常数,a≠0)与不等式的关系,利用两个函数图象在直角坐标系中的上下位置关系求自变量的取值范围,可作图利用交点直观求解,也可把两个函数解析式列成不等式求解.17.272【解析】【分析】根据点O 与点A 的坐标求出平移后的抛物线的对称轴,然后求出点P 的坐标,过点P 作PM ⊥y 轴于点M ,根据抛物线的对称性可知阴影部分的面积等于四边形NPMO 的面积,然后求解即可.【详解】过点P 作PM ⊥y 轴于点M ,设PQ 交x 轴于点N ,∵抛物线平移后经过原点O 和点A (﹣6,0),∴平移后的抛物线对称轴为x=﹣3.∴平移后的二次函数解析式为:y=12(x+3)2+h ,将(﹣6,0)代入得出:0=12(﹣6+3)2+h ,解得:h=﹣92.∴点P 的坐标是(3,﹣92).根据抛物线的对称性可知,阴影部分的面积等于矩形NPMO 的面积,∴S=9273=22⨯-18.13x =+23x =【解析】【分析】根据方程特点,先将方程变形为267-=-x x ,则利用配方法求解即可.【详解】解:∵2670x x -+=,∴267-=-x x ,则26979x x -+=-+,即2(3)2x -=,∴3x -=∴13x =+23x =【点睛】本题考查了解一元二次方程,熟练掌握解一元二次方程的方法及步骤是解题的关键.19.(1)抛物线的对称轴x=52,顶点坐标为(52,212);(2)抛物线交y 轴于(0,﹣2),交x 轴于(2,0)或(12,0).【解析】【分析】(1)把二次函数y=-2x 2+5x-2化为顶点式的形式,根据二次函数的性质写出答案即可;(2)令x=0可求图象与y 轴的交点坐标,令y=0可求图象与x 轴的交点坐标;【详解】(1)∵y=﹣2(x 2﹣52x+2516﹣2516)﹣2=﹣2(x ﹣54)2+98,∴抛物线的对称轴x=54,顶点坐标为(54,98).(2)对于抛物线y=﹣2x 2+5x ﹣2,令x=0,得到y=﹣2,令y=0,得到﹣2x 2+5x ﹣2=0,解得:x=2或12,∴抛物线交y 轴于(0,﹣2),交x 轴于(2,0)或(12,0).20.()211 3.3y x =--【解析】【分析】设抛物线为:()2,y a x h k =-+根据抛物线的顶点坐标求解,h k ,再把()2,0A -代入解析式可得答案.【详解】解:设抛物线为:()2,y a x h k =-+ 抛物线的顶点是(1,-3),1,3,h k ∴==-∴抛物线为:()213,y a x =--把()2,0A -代入抛物线得:()22130,a ---= 93a ∴=,1,3a ∴=∴抛物线为:()211 3.3y x =--【点睛】本题考查的是利用待定系数法求解抛物线的解析式,根据题意设出合适的抛物线的解析式是解题的关键.21.(1)m≥-2;(2)m=2.【解析】【分析】(1)根据判别式在大于等于0时,方程有两个实数根,确定m 的值;(2)根据根与系数的关系可以求出m 的值.【详解】解:(1)∵△≥0时,一元二次方程有两个实数根,Δ=[2(m+1)]2-4×1×(m 2-3)=8m+16≥0,m≥-2,∴m≥-2时,方程有两个实数根.(2)∵x 12+x 22=x 1x 2+33,∴21212()3x x x x +-=33,∵1222b x x m a+=-=+,2123c x x m a ⋅==-,∴22(22)3(3)m m +--=33,解得m=2或-10(舍去),故m 的值是m=2.【点睛】本题考查了根的判别式和根与系数的关系,要记住12b x x a +=-,12c x x a⋅=-.22.(1)(36﹣2x );(2)AD =10米【解析】【分析】(1)设AD =x 米,则BC =AD =x 米,利用CD 的长=篱笆的长+门的宽﹣2AD ,即可用含x 的代数式表示出CD 的长;(2)利用矩形的面积计算公式,即可得出关于x 的一元二次方程,解之即可得出x 的值,再结合墙的长度为18米,即可确定AD 的长.【详解】(1)设AD =x 米,则BC =AD =x 米,∴CD =34+2﹣2AD =34+2﹣2x =(36﹣2x )米.故答案为:(36﹣2x ).(2)依题意得:x (36﹣2x )=160,化简得:x2﹣18x+80=0,解得:x1=8,x2=10.当x=8时,36﹣2x=36﹣2×8﹣20>18,不合题意,舍去;当x=10时,36﹣2x=36﹣2×10=16<18,符合题意.故AD的长为10米.【点睛】本题考查了列代数式,一元二次方程的应用,注意:求得的两个解要检验是否符合题意.23.(1)x=2;(2)每件商品的售价为34元时,商品的利润最大,为1960元.【解析】【分析】(1)销售利润=每件商品的利润×(180-10×上涨的钱数),根据每件售价不能高于35元,可得自变量的取值;(2)利用公式法结合(1)得到的函数解析式可得二次函数的最值,结合实际意义,求得整数解即可.【详解】解:(1)y=(30﹣20+x)(180﹣10x)=﹣10x2+80x+1800(0≤x≤5,且x为整数);令y=1920得:1920=﹣10x2+80x+1800x2﹣8x+12=0,(x﹣2)(x﹣6)=0,解得x=2或x=6,∵0≤x≤5,∴x=2,(2)由(1)知,y=﹣10x2+80x+1800(0≤x≤5,且x为整数).∵﹣10<0,∴当x=802(10)-⨯-=4时,y最大=1960元;∴每件商品的售价为34元答:每件商品的售价为34元时,商品的利润最大,为1960元.【点睛】本题考查考查二次函数的应用;得到月销售量是解决本题的突破点;注意结合自变量的取值求得相应的售价.24.(1)换元,化归;(2)x 1=0,x 2=﹣5【解析】【分析】(1)利用换元法达到了降次的目的,体现了化归的数学思想,据此可得答案;(2)令y =x 2+5x ,得到关于y 的一元二次方程,解之求出y 的值,从而得到两个关于x 的一元二次方程,分别求解可得.【详解】解:(1)在原方程得到方程①的过程中,利用换元法达到了降次的目的,体现了化归的数学思想;故答案为换元,化归.(2)令y =x 2+5x ,则原方程化为(y+1)(y+7)=7,整理,得:y 2+8y =0,解得y 1=0,y 2=﹣8,当y =0时,x 2+5x =0,解得:x 1=0,x 2=﹣5;当y =﹣8时,x 2+5x =﹣8,即x 2+5x+8=0,∵△=52﹣4×1×8=﹣7<0,∴此方程无解.综上,方程(x 2+5x+1)(x 2+5x+7)=7的解为x 1=0,x 2=﹣5.【点睛】本题考查利用换元法解方程,熟练掌握该方法是解题关键.25.(1)223y x x =+-;(2)(3)点Q 的坐标为(0,3)-或(2,3)--或(1-+或(1-【解析】【分析】(1)将A 、D 点代入抛物线方程2y x bx c =++,即可解出b 、c 的值,抛物线的解析式可得;(2)点C 、D 关于抛物线的对称轴对称,连接AC ,点P 即为AC 与对称轴的交点,PA+PD的最小值即为AC 的长度,用勾股定理即可求得AC 的长度;(3)求得B 点坐标,设点()2,23Q m m m +-,利用三角形面积公式,即可求出m 的值,点Q 的坐标即可求得.【详解】解:(1)∵抛物线2y x bx c =++经过点(3,0),(2,3)A D ---,∴930,423,b c b c -+=⎧⎨-+=-⎩解得2,3,b c =⎧⎨=-⎩∴抛物线的解析式为223y x x =+-.(2)由(1)得抛物线223y x x =+-的对称轴为直线1,(0,3)x C =--.∵(2,3)D --,∴C ,D 关于抛物线的对称轴对称,连接AC ,可知,当点P 为直线AC 与对称轴的交点时,PA PD +取得最小值,∴最小值为AC ==(3)设点()2,23Q m m m +-,令2230y x x =+-=,得3x =-或1,∴点B 的坐标为(1,0),∴4AB =.∵6QAB S = ,∴2142362m m ⨯⨯+-=,∴2260m m +-=或220m m +=,解得:1m =-1-0或2-,∴点Q 的坐标为(0,3)-或(2,3)--或(1-或(1-.【点睛】本题考察了待定系数法求解析式、两点之间线段最短、勾股定理、二次函数的性质,解答本题的关键是明确题意,利用二次函数的性质和数形结合的思想解答。
九年级上册英语月考试题

九年级上册英语月考试题第Ⅰ卷(选择题,共66分)一单项填空(共20小题,计20分)1.Schools allow students at least one hour a day for sports.A.would B.might C.should D.could2.–You didn’t send me an e-mail last night, did you?–Sorry. My broke down. I couldn’t get online.A.computer B.car C.clock D.camera3.– Look! Here comes our school bus.–No hurry. Don’t get on it it has stopped.A.when B.after C.since D.until4.– I called you at half past nine this morning, but there was no answer.– Oh, sorry, I with my cousin in the supermarket.A.shop B.was shopping C.shopped D.will shop5.That's very kind you. I know it's very hard you to do that.A.of, of B.of, for C.for, of D.for, for6.If you are feeling , you’d better share your problems with your friends or family members.A.excited B.tired C.stressed D.relaxed7.– Will you come to the dinner party? – I won’t come unless Jenny .A.invited B.is invited C.can be invited D.will be invited 8.There was so much noise in the room we couldn't hear him clearly.A.what B.because C.but D.that9.This is the first thing you are after you get there.A.suppose to do B.supposed do C.supposed to do D.supposed doing 10.There some old and low houses in the village.A.used to be B.were used to be C.uses to be D.used to be having 11.– Would you like some more rice? – No, thanks. .A.Just a little B.It doesn’t matterC.I’ve had enough D.I’d love to12.– How was your visit to Tibet? –. The scenery is amazing!A.It was wonderful l B.It was hard to sayC.I didn’t enjoy it D.It was unpleasant13. He ______ to school by bike, but now he ______ to school on foot.A. used to going; gets used to goB. used to go; gets used to goingC. used to go; gets used to goD. get used to going; used to go14. Mr. Simth didn’t tell us ______.A. where does he liveB. where he livesC. where did he liveD. where he lived15. In our class, about ______ of the students are girls.A. three fifthB. third fifthC. third fifthsD. three fifths16. If it isn't yours, it must be _____ .A. somebody elseB. somebody else'sC. else somebodyD. else's somebody17. Our school will hold a sport meeting ________ next month.A. some timeB. sometimeC. some timesD. sometimes18. He always makes his class _____ .A. lively and interestedB. lively and interestingC. alive and interestedD. alive and interesting19. There ____ a number of students in the hall and the number of them ___ over 300.A. are, isB. is, areC. are, areD. is, is20. Their school has more than two _____ teachers and _____ students.A. hundreds of, thousands ofB. hundred, thousands ofC. hundred of, thousandD. hundreds, thousands of三、完形填空(共10小题,计20分)The world is divided into two main parts, the poor and the ____21__ . The poor countries ___22___ “the developing countries”, which have special ___23___. Sometimes the land is too poor to grow anything __24___. Many people never get enough food __25___, and the children starve(饿死). Help should be given by the rich countries, but rich countries have problems, __26___. The air isn’t fresh and the rivers are __27___ dirty to swim in or __28___ water from. Also the roads are too __29___ to drive along. And sometimes, large numbers of people __30___ not have pleasant houses to live in. So something will have to be done about the problems.21. A. rich B. richer C. good D. poorer22. A. is called B. are called C. calls D. calling23. A. friends B. problems C. places D. conditions24. A. on B. in C. among D. at25. A. to play with B. to live in C. to eat D. to drink26. A. already B. also C. either D. too27. A. very B. too C. really D. so28. A. to taking B. take C. taking D. takes29. A. crowd B. crowds C. crowded D. crow30. A. does B. do C. did D. have四、阅读下列短文,并做每篇后面的题目,从各题A、B、C、D中选出能回答所提问题或完成所给句子的最佳答案。
人教版九年级上册数学第一次月考试卷含答案

人教版九年级上册数学第一次月考试题一、单选题1.下列方程中,属于一元二次方程的是()A 0=B .2x +1=0C .20y x +=D .21x =12.方程(x+3)(x-4)=0的根是()A .123,4x x =-=B .123,4x x ==C .1234,x x ==-D .123,4x x =-=-3.已知关于x 的方程260--=x kx 的一个根为x=4,则实数k 的值为()A .25B .52C .2D .54.用配方法解方程2250x x --=时,原方程应变形为()A .()216x +=B .()216x -=C .()229x +=D .()229x -=5.已知方程2380x x --=的两个解分别为12,x x ,则1212,x x x x +⋅的值分别是()A .3,-8B .-3,-8C .-3,8D .3,86.某种药品原价为36元/盒,经过连续两次降价后售价为25元/盒.设平均每次降价的百分率为x ,根据题意所列方程正确的是()A .236(1)3625x -=-B .236(12)25x -=C .236(1)25x -=D .225(1)36x -=7.抛物线22(2)1y x =-+的顶点坐标是()A .()2,1B .()2,1-C .()1,2D .()1,2-8.抛物线2y ax bx c =++的图象如图所示,则一元二次方程20ax bx c ++=的解是()A .x=-1B .x=3C .x=-1或x=3D .无法确认9.将抛物线y=4x 2向右平移1个单位,再向上平移3个单位,得到的抛物线是()A .y=4(x+1)2+3B .y=4(x ﹣1)2+3C .y=4(x+1)2﹣3D .y=4(x ﹣1)2﹣310.二次函数2(2)1y x =+-的图像大致为()A .B .C .D .二、填空题11.将方程()()3152x x x -=+化为一元二次方程的一般式______.12.一元二次方程x 2﹣4=0的解是_________.13.已知关于x 的一元二次方程22(2)(21)10m x m x -+++=有两个不相等的实数根,则m 的取值范围是______14.函数243y x x =-++有_____(填“最大”或“最小”),所求最值是_______15.抛物线2y ax bx c =++与x 轴的交点坐标为(1,0)-和(3,0),则这条抛物线的对称轴是x =______.16.已知二次函数23(1)y x k =-+的图象上三点1(2,)A y ,2(3,)B y ,3(4,)C y -,则1y 、2y 、3y 的大小关系是_____.17.将抛物线247y x x =++沿竖直方向平移,使其顶点在x 轴上,且过点A (m ,n ),B (m+10,n ),则n=________三、解答题18.解方程:(1)2410x x --=(2)()255x x-=-19.已知抛物线y=4x 2-11x-3.(1)求它的对称轴;(2)求它与x 轴,y 轴的交点坐标.20.已知关于x 的方程(1)若该方程的一个根为,求的值及该方程的另一根;(2)求证:不论取何实数,该方程都有两个不相等的实数根.21.如图,抛物线2y x bx c =-++经过坐标原点,并与x 轴交于点A (2,0).(1)求此抛物线的解析式:(2)设抛物线的顶点为B ,求∆OAB 的面积S .22.如图,某农场要建一个长方形的养鸡场,鸡场的一边靠墙,墙长25m ,另外三边木栏围着,木栏长40m .(1)若养鸡场面积为200m 2,求鸡场靠墙的一边长.(2)养鸡场面积能达到250m 2吗?如果能,请给出设计方案,如果不能,请说明理由23.已知抛物线()2114y a x =-+与直线21y x =+的一个交点的横坐标是2(1)求a 的值;(2)请在所给的坐标系中,画出函数21(1)4y a x =-+与21y x =+的图象,并根据图象,直接写出12y y ≥时x 的取值范围24.大润发超市以每件30元的价格购进一种商品,试销中发现每天的销售量y (件)与每件的销售价x (元)之间满足一次函数1623y x=-(1)写出超市每天的销售利润w (元)与每件的销售价x (元)之间的函数关系式;(2)如果超市每天想要获得销售利润420元,则每件商品的销售价应定为多少元?(3)如果超市要想获得最大利润,每件商品的销售价定为多少元最合适?最大销售利润为多少元?25.如图所示,抛物线2y x mx n =-++经过点A (1,0)和点C (4,0),与y 轴交于B(1)求抛物线所对应的解析式.(2)连接直线BC ,抛物线的对称轴与BC 交于点E ,F 为抛物线的顶点,求四边形AECF 的面积.(3)x 轴上是否存在一点P ,使得PB+PE 的值最小,若存在,请求出P 点坐标,若不存在,请说明理由.参考答案1.B 2.A 3.B 4.B 5.A 6.C 7.A 8.C 9.B 10.D11.238100x x --=12.x=±213.34m >且2m ≠14.最大715.116.123y y y <<17.2518.(1)2x =±,(2)5x =或4x =19.(1)x=118(2)该抛物线与x 轴的交点坐标为(3,0),1-,04⎛⎫⎪⎝⎭;该抛物线与y 轴的交点坐标为(0,-3).20.(1)m=1;0(2)见解析21.(1)y =−x 2+2x ;(2)122.(1)20m .(2)不能达到250m 2,理由见解析.23.(1)a=-1;(2)图见解析,-1≤x≤224.(1)w=-32x +252x -4860;(2)40或44;(3)42元,432元25.(1)254y x x =-+-;(2)458;(3)存在,P (2011,0)。
沪科版九年级上册数学第一次月考试卷含答案

沪科版九年级上册数学第一次月考试题一、单选题1.已知反比例函数k y x =的图象经过点()1,2A -,那么,(k =)A .2B .2-C .12D .12-2.函数()211m y m x+=+是二次函数,则m 的值是()A .±1B .1C .-1D .以上都不对3.把一根长为50cm 的铁丝弯成一个长方形,设这个长方形的一边长为x (cm ),它的面积为y (cm 2),则y 与x 之间的函数关系式为()A .y=-x 2+50xB .y=x 2-50xC .y=-x 2+25xD .y=-2x 2+254.如果点()1,2同时在函数y ax b =+与x b y a -=的图象上,那么a ,b 的值分别为()A .a=-3,b=-1B .a=-3,b=1C .a=1,b=-3D .a=-1,b=35.二次函数2y ax b =+与反比例函数ab y x=在同一平面直角坐标系中的图象可能是()A .B .C .D .6.抛物线2(1)2y x =-+的顶点坐标是()A .(﹣1,2)B .(﹣1,﹣2)C .(1,﹣2)D .(1,2)7.如果矩形的面积为6cm 2,那么它的长ycm 与宽xcm 之间的函数关系用图象表示大致是()A .B .C .D .8.如图,在Rt ABC 中,90ACB ∠= ,CD AB ⊥于点D .3AC =,6AB =,则(AD =)A .32B .3C .92D .339.二次函数2y ax bx c =++的图象如图所示,则下列结论:①0abc <;②240b ac ->;③20a b +>;④0a b c ++<;⑤220ax bx c +++=的解为0x =,其中正确的有()A .5个B .4个C .3个D .2个10.如图,在直角坐标系中,有菱形OABC ,A 点的坐标是()10,0,双曲线(0)k y x x=>经过点C ,且160OB AC ⋅=,则k 的值为()A .40B .48C .64D .80二、填空题11.以原点O 为位似中心,将ABC 缩小,使变换后得到的111A B C 与ABC 对应边的比为1:2.请在网格内画出111A B C ,并写出点1A 的坐标________.12.方程2123x x x-+=的实根的个数为________个.13.结合二次函数224233y x x =-++的图象图回答:() 1当x =________时,()02y =当________时,()03y >当________时,0y <.14.若37a b =,则a b a b+=-________.15.函数2241y x x =++,当x ________时,y 随x 的增大而减小.16.如图,ABC 是一块锐角三角形材料,边6BC cm =,高4AD cm =,要把它加工成一个矩形零件,使矩形的一边在BC 上,其余两个顶点分别在AB 、AC 上,要使矩形EGFH 的面积最大,EG 的长应为________cm .17.已知数3,6,请写出一个数,使这三个数中的一个数是另外两个数的比例中项,这个数是____________.(填写一个即可)18.已知抛物线212y x bx =+经过点()4,0A .设点()1,3C -,请在抛物线的对称轴上确定一点D ,使得AD CD -的值最大,则D 点的坐标为________.19.下列函数中________是反比例函数.①1y x x =+,②231x y x +=,③12x y -=,④32y x=.20.如图,线段AB 、CD 相交于E ,//AD BC ,若:1:2AE EB =,1ADE S = ,则AEC S 等于________.三、解答题21.如图,抛物线223y x x =--+于x 轴交于()1,0A ,()3,0B -两点,交y 轴于点()0,3C ;在抛物线上是否存在点H ,使得BCH 为直角三角形.22.已知两个相似三角形的一对对应边长分别是35cm 和14cm()1已知他们的周长相差60cm ,求这两个三角形的周长.() 2已知它们的面积相差2588cm ,求这两个三角形的面积.23.如图,在矩形ABCD 中,6AB cm =,12BC cm =,点P 沿边AB 从点A 向点B 以1/cm s 的速度移动;同时,点Q 从点B 沿边BC 向点C 以2/cm s 的速度移动,设点P 、Q 移动的时间为t s .问:() 1当t 为何值时PBQ 的面积等于28cm() 2当t 为何值时DPQ 是直角三角形?() 3是否存在t 的值,使DPQ 的面积最小,若存在,求此时t 的值及此时的面积;若不存在,请说明理由.24.随着某市近几年城市建设的快速发展,对花木的需求量逐年提高,某园林专业户计划投资种植花卉及树木.根据市场调查与预测,种植树木的利润y 1与投资量x 成正比例关系,如图①所示;种植花卉的利润y 2与投资量x 成二次函数关系,如图②所示(注:利润与投资量的单位:万元).(1)分别求出利润y 1与y 2关于投资量x 的函数关系式;(2)如果这位专业户以8万元资金投入种植花卉和树木,他至少获得多少利润?他能获取的最大利润是多少?25.如图,是小亮晚上在广场散步的示意图,图中线段AB 表示站立在广场上的小亮,线段PO 表示直立在广场上的灯杆,点P 表示照明灯的位置.()1在小亮由B 处沿BO 所在的方向行走到达O 处的过程中,他在地面上的影子长度越来越________(用“长”或“短”填空);请你在图中画出小亮站在AB 处的影子BE ;()2当小亮离开灯杆的距离 3.6OB m =时,身高为1.6m 的小亮的影长为1.2m ,①灯杆的高度为多少m ?②当小亮离开灯杆的距离6OD m =时,小亮的影长变为多少m ?26.如图1,抛物线23y x x =--与直线22y x =--交于A 、B 两点,过A 作//AC x 轴交抛物线于点C ,直线AB 交x 轴于点D .()1求A 、B 、C 三点的坐标;()2若点H 是线段BD 上的一个动点,过H 作//HE y 轴交抛物线于E 点,连接OE 、OH ,当310HE AC =时,求OEH S 的值;()3如图2,连接BO ,CO 及BC ,设点F 是BC 的中点,点P 是线段CO 上任意一点,将BFP 沿边PF 翻折得到GPF ,求当PC 为何值时,GPF 与CFP 重叠部分的面积是BCP 面积的14.参考答案1.B2.B3.C4.D5.B6.D7.C8.A9.C10.B11.()1,412.113.1-或313x -<<1x <-或3x >.14.52-15.1<-16.217.或1.5或1218.()2,6-19.④20.221.在抛物线上存在使BCH 为直角三角形的点H .22.(1)较大的三角形的周长为100cm ,较小的三角形的周长为40cm ;(2)较大的三角形的面积为2700cm ,较小的三角形的面积为2112cm .23.(1)当2t s =或4t s =时,PBQ 的面积等于28cm ;(2)当t 的值为0秒或32秒或6秒时,DPQ 是直角三角形;(3)存在,当3t =时,DPQ S 有最小值27.24.(1)利润y 1关于投资量x 的函数关系式是y 1=2x (x≥0),利润y 2关于投资量x 的函数关系式是y=12x 2(x≥0);(2)当x=8时,z 的最大值是32.25.(1)短,画图见解析;(2)①x=6.4;②小亮的影长是2米.26.(1)点A 坐标()1,4-,点B 坐标()2,2-,点C 坐标()4,4--;(2)3338OEH S +=;(3)当PC =时,GPF 与CFO 重叠部分的面积是BCP 面积的14.。
山东省临沂重点中学2023—2024学年九年级上学期月考语文试题(含答案)

九年级语文月考测试题满分:100分考试时间:90分钟一、语言的积累与运用。
(16分)1、下列加点字注音,全部正确的一项是()(2分)A.汹涌(yǒng)摇曳(yè)娉婷(pīn) B.黎明(ní)嘶哑(sī)飘逸(yì)C.风骚(sāo)呢喃(nán)丰润(rùn) D.腐烂(fǔ)冠冕(guàn)鲜妍(yán)2、下列各组词语中,汉字书写全都正确的一组是()(2分)A.生涯惬意通霄达旦顾明思义B.潮汛拌嘴记忆犹新呕心沥血C.诸候遐想莫衷一事来势凶凶D.娇艳眼睑更胜一筹白壁无瑕3、下列各句中,加点成语使用恰当的一句是( )(2分)A.全面建成小康社会时不我待,青年一代要勇立时代潮头,只争朝夕,在伟大实践中放飞青春梦想。
B.行驶在滨海路上,一边是苍茫的大海,一边是无际的农田,沧海桑田,美景如画,令人目不暇接。
C.我们要提高电信安全意识,因为每天接到的让人不厌其烦的骚扰电话,有不少以诈骗为目的。
D.美国采取大规模贸易保护主义措施的霸凌行径直指中国,大有挑起贸易战之势,其图谋无可非议。
4、下列句子没有语病的一项是()(2分)A.随着花鼓戏表演等民间艺术活动引入课堂,更多学生受到了湖南传统文化的熏陶。
B.最近,长沙湘府路高架桥顺利通车,极大缓解了南部城区的通行压力,满足了沿线区域的交通。
C.因为能激发国人的爱国热情的原因,《我和我的祖国》这部电影自国庆节上映以来,票房一直不错。
D.最近临沂的天气真的让人琢磨不透,所以大家切忌不要随便脱衣,防止病菌入侵。
5、诗文名句默写。
(6分)(1)须晴日,________________分外妖娆。
(毛泽东《沁园春·雪》)(2)为什么我的眼里常含泪水?—— 。
(艾青《我爱这土地》)(3)雾凇沆砀,_______________。
(张岱《湖心亭看雪》)(4)闲来垂钓碧溪上,。
(李白《行路难》)(5)苏轼在《水调歌头》下片“_______________,_______________”两句用对偶句式表现了他达观的处事态度,同时寄托对未来的希望。
北京市海淀区2024学年九年级历史上学期月考试题

2024学年九年级上学期月考历史试题一、选择题(每题1.5分,共30小题,45分)1. 视察下列三幅图片,从中传达的信息正确的是()出土的甲骨文古埃及罗塞塔石碑《汉谟拉比法典》石柱A. 甲骨文的出土,有力证明白我国文字可考的历史从夏朝起先B. 罗塞塔石碑碑文有楔形文字,是探讨古埃及历史的宝贵资料C. 《汉谟拉比法典》的出现,说明印度河流域很早就进入了文明时代D. 体现了世界文明的多样性2. “我们也希望你们知道,我们要把权力赐给我们的忠臣们,而且我们决不愿对他们做任何违反理性的事。
我们也告诫你们以及我们的其他忠臣把权力授给你们的附庸,对他们决不做违反理性的事。
”该则材料中所说的赐予“权力”的基础是赐予()A. 农奴B. 武器C. 土地D. 爵位3. 下列表格中,历史现象与缘由的对应关系正确的是()4. 2024年4月1日,日本正式公布新年号为“令和”。
这是日本自公元645年首次运用年号以来的第248个年号。
日本首次运用的年号是()A. 大化B. 德川C. 明治D. 裕仁5. 历史史实是指历史的真实状况,历史观点是对历史事实的看法和看法,下列表述中属于历史观点的是()A. 古代印度产生了种姓制度B. 汉谟拉比在位时统一了两河流域C. 亚历山大大帝,曾建立了一个横跨欧、亚、非三洲的大帝国D. 古希腊民主政治,对欧洲民主政治产生了很大影响。
6. 中世纪的西欧庄园的主要产业是农业,同时也有手工业,有木匠、铁匠,庄园自己酿造啤酒,有自己的磨坊和面包师。
”这段材料说明()A. 庄园经济具有自给自足的特点B. 庄园的主要劳动者是奴隶C. 庄园的居民生活水平高D. 庄园里的居民居住条件好。
7. 10世纪初,伦敦市民每年向王室缴纳300镑的租金,以获得国王对市民自选市长和市政官的许可。
材料反映出中世纪的欧洲()A. 封君封臣制度逐步形成B. 国家税收主要来源于城市C. 城市获得了部分的自治权D. 市民以暴力的方式抗拒贵族。
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九年级英语时间100分钟分值120分出卷人马娇一.听力部分(30分,每小题1.5分)Ⅰ.听对话及问题,选择正确答案。
每段对话和问题读两遍。
( )1.A.The Same TV News. C.Animal World.( )2.A.Watch TV. B.Watch a movie. C.Play computer games.( )3.A.Pop music. B.Folk song. C.Classical music.( )4.A.She never watches it. B.She watches it sometimes.C.She watches it every Friday evening.( )5.A.Go to the museum. B.Go to France. C.Go to the party.Ⅱ.听对话,选择正确答案。
对话读两遍。
( )6.How many words are Peter and his friend talking about?A.Three.B.Two.C.One.( )7.John means the English football player looks ______.A.coolB.handsomeC.great( )8.Maybe the word “cool” can be used to mean “______” .A.prettyB.beautifulC.lively( )9.Peter‟s friend often hears people say “______”!A.OKB.CoolC.Hello( )10.Who means that we should learn more other words to make our life colorful?A.Peter‟s friend.B.Peter and his friend.C.Peter.Ⅲ.听对话,选择最佳选项。
对话读两遍。
( )11.Rose is inviting Michael to .A.go campingB.have dinnerC.see a film( )12.There will be tomorrow.A.a geography examB.a volleyball gameC.a class meeting( )13.How long is Michael going to stay at the library?A.For half an hourB.For two hoursC.For three hours( )14.Michael has to return home do the at six.A.cookingB.washingC.cleaning( )15.How will Michael and Rose get home?A.On foot.B.By subway.C.By bus.Ⅳ.听短文,选择正确答案。
短文读两遍。
( )16.Why did Li Miao feel sad when she woke?A.She missed her classmates.B.She hated her classmates.C.She would forget her classmates.( )17.Where does Li Miao want to meet her classmates someday?A.Shanghai.B.Beijing.C.Guangzhou.( )18.What were the people doing in the village?A.Dancing.B.Singing.C.Dancing and singing.( )19.What did Li Miao dream yesterday?A.She and her classmates were laughing in science class.B.She and her classmates were laughing in English class.C.She and her classmates were laughing in labor class.( )20.What did Li Miao want to paint?A.The sky.B.The river.C.The sky and the river. 二.单项选择:(10分)( ) 21.—Would you like to go shopping with me, Kangkang?—_____________.A. No, I‟d like toB. No, I can‟t C, Yes, I likeD. Sorry, I‟m afraid not , I have to do my ho mework( ) 22. —_____________.—It‟s sunny today.A. How was the weather yesterday?B. How are you doing?C. What fine weather!D. What‟s the weather like today?( ) 23. — What is your mother?—_____________A. She is a teacher.B. she is a teacher.C. He is a teacher.D. She works in a hospital.( ) 24. —Hello, who‟s that speaking?—_____________.A. That is Jane.B. This is Kangkang speaking.C. I‟m Mike .D. She is Maria.( ) 25. —Happy birthday, Judy!—_____________.A. Don‟t say that.B. Thank you very much.C. The same to you.D. I don‟t think so.( ) 26. —How are you doing, Jim?—_____________ .A.I am walking.B. Not bad, thank you.C.I am going by bike.D. How are you?( ) 27. —Don‟t be late again, Liu Fang.—_____________ .A. No, I willB. Yes, I won‟tC. Sorry, I won‟tD. Yes, I will( ) 28. —Would you mind if I open the window?—______________, I got a cold.A. You‟d better not.B. Never mind.C. Of course not.D. All right.( ) 29. Listen! Someone ________ an English song now.A. singsB. sangC. is singingD. was singing( ) 30. Come on, _______ you will be late for school.A. andB. butC. orD. so三.完形填空(10分)Once upon a time,some children were playing at seaside when they found a turtle(海龟)。
They began to beat the turtle. Just at that time,a young man came and said to them,“Stop!” The children ran ___31___ quickly. The turtle was very thankful and said,“Thanks for your kindness.I really would like ___32___ you to a wonderful palace now.”The young man rode on the back of the turtle and was taken to the secret palace in the sea. When he ___33___ the palace,he was very surprised and said to the turtle,“What a nice palace!” To thank him,the king of the turtles gave him ___34___. He had never seen such a dinner before. He received a warm welcome there and was very __35___ everything.After dinner,the king of the turtles said,“I am goin g to give you two boxes,___36___ you can open only one.” “You mustn…t open both. Don‟t forget it!” the turtle warned him. “All right. I will open only one,” the young man promised(许诺)。
At this time,a large wave sent him out of the sea.After he ___37___,he opened the bigger one of the two boxes. ___38___ the box was full of gold. “My God!” he cried. “I…m ___39___ now.” Then he thought,“Things in the other box must be expensive,too.” He could not wait any longer. He broke his promise and opened the other box. As soon as he opened it,he became an old man. His hair turned white. His face ___40___ an old man over eighty years old. It all happened in a moment. He was sorry for what he did,but it was too late.( )31. A. through B. away C. into D. out( )32. A. wanting B. asking C. to let D. to invite( )33. A. left for B. arrived on C. arrived at D. got away( )34. A. a very big dinner B. a very poor dinnerC. a very bad dinnerD. a very small dinner( )35. A. pleased with B. strict in C. angry with D. sorry for( )36. A. so B. or C. but D. as( )37.A.went back to home B. was back home C.went back to the sea D. was back the sea( )38. A. To his surprising B. To one…s surprisingC. To one‟s surpriseD. To his surprise( )39. A. a poor man B. a rich man C. an old man D. a young man( )40. A. liked B. felt like C. looked like D. looked四.阅读理解(每小题2分,共40分)(A)A farmer had a cow. He took very good care of this cow and one day when it was ill, he was very worried. He telephoned the vet.“What‟s the problem?” The vet asked him when he arrived.“My cow's ill,” the farmer said. “I don‟t know what's the matter with her. She‟s lying down and won‟t eat. She's making a strange noise.”The vet looked over the cow. "She's certainly ill," he said, "and she needs to take some very strong medicine."He took a bottle out of his box, put two pills into his hand and said, "Give her these. The pills should make her better."“How should I give them to her?” the farmer asked.The vet gave him a tube (管子)and said, "Put this tube in her mouth, then put the pills inthe tube and blow. That'll make it."The next day the vet came to the farm again. The farmer was sitting outside his house and looked more worried.“How's your cow?” the vet asked.“No change,” the farmer said, “and I‟m feeling very strange myself.”“Oh?” the vet said, "Why?"“I did what you said,” the farmer answered. “I put the tube in the cow's mouth and then put two pills down it.”“And?” the vet asked.“The cow blew first,” the farmer said.( )41.In the story, the vet must be _________.A. the farmer's friendB. a milk factoryC. a hospital for cowsD. a doctor for animals( )42.The farmer asked the vet for help when his cow _______A. couldn't lie downB. didn't eat the pillsC. couldn't make any noiseD. was ill( )43.What medicine did the vet give the farmer?A. Bottle of pills.B. A long tube.C. Two pills.D. A small box.( )44.The vet taught the farmer how _________.A. to blow the tubeB. to make the cow take the pillsC. to take the medicineD. to put the tube in his mouth ( )45.Which of the following is true?A. The farmer ate the pills himself.B. The cow got better after taking the medicine.C. The vet came to help farmer change the cow the next day.D. The farmer waited for the vet outside his house the next day.(B)If you get into the forest with your friends, stay with them always. If you don‟t, you may get lost. If you really get lost, this is what you should do. Sit down and stay where you are. Don‟t try to find your friends—let them find you by staying in one place.There is another way to help your friends or other nearby people to find you. Give them a signal (信号) by shouting or whistling (吹口哨) three times. Any signal given three times is a call for help.Keep up shouting or whistling always three times together. When people hear you, they will know that you are not just making noise for fun. They will let you know that they have heard your signal. They give you two shouts, two whistles, or two gun-shots (枪声). When someone gives you a signal, it is an answer to a call for help.If yo u don‟t think that you will get help before night comes, try to make a little house---cover up to the holes with branches (树枝) with lots of leaves. Make yourself a soft bed with leaves and grass.What should you do if you get hungry or need drinking water? You would have to leave your little house to look for a river. Don‟t just walk away. Pick off small branches and drop them as youwalk so that you can find your way back. The most important thing to do when you are lost is—stay in one place.( )46.If you lost in the forest, you should _______.A.stay where you are and give signals three timesB.walk around the forest and shout so that your friends could hear youC.try to find your friends as soon as possibleD.try to get out of the forest and shout for help( )47.If you want to let people believe that you are not just making noise for fun, you should _______.A. tell people that you are lostB. keep up shouting or whistlingC. shout at the top of your voiceD. shout or whistle three times( )48.When you hear two shouts, or whistles, or gunshots, __________.A. you should shout more loudlyB. you can whistle three timesC. it is an answer to your call for helpD. you should try to run to them( )49.When you want to leave your place to get drinking water, you should __________.A.just go to the riverB. find some glasses or bottles before you goC. make a fire so that you can have some teaD. leave marks so that you can find your way back( )50.This passage mainly tells you __________.A. when you hear a signal always three times, it is a call for helpB. What you should do if you get lost in a forestC. any signal given twice means an answer to a call for helpD. how you can live longer in a forest(C)We spent a day in the country and picked a lot of flowers. Our car was full of flowers inside! On the way home we had to stop at traffic lights, and there my wife saw the bookshelf.It stood outside a furniture(家具)shop. “Buy it,” she said at once. “We‟ll carry it home on the roof-rack(车顶架). I‟ve always wanted one like that.”What could I do? Ten minutes later I was twenty dollars poorer, and the bookshelf was tied on to the roof rack. It was tall and narrow, quite heavy too.As it was getting darker, I drove slowly. Other drivers seemed more polite than usual that evening. The police even stopped traffic to let us through. Carrying furniture was a good idea.After a time my wife said, “There‟s a long line of cars behind. Why don‟t they overtake(超车)?”Just at that time a police car did overtake. The two officers(警官)inside looked at us seriously when they went past. But then, with a kind smile they asked us to follow their car through the busy traffic. The police car stopped at our village church(教堂). One of the officers came to me. “Right, sir,” he said. “Do you need any more help now?”I didn‟t quite understand. “Thanks, officer,” I said. “You‟ve been very kind. I live just down the road.”He was looking at our thi ngs: first at the flowers, then at the bookshelf. “Well, well,” he said and laughed. “It‟s a bookshelf you‟ve got there! We thought it was——er, something else.”My wife began to laugh. Suddenly I understood why the police drove here. I smiled at the officer. “Yes, it‟s a bookshelf, but thanks again.” I drove home as fast as I could.( )51、From the story we know that .A.the writer was poor and didn‟t buy the bookshelf for his wifeB.the writer‟s wife didn‟t like the bookshelf at allC.the writer was always glad to buy something for his wifeD.the writer was not very glad to buy the bookshelf for his wife( )52、What made the writer think that carrying furniture was “a good idea”?A.He could drive slowly and it was safe.B.Other drivers would let him go first.C.His wife could use a new bookshelf.D.He could save a lot of money and time.( )53、Why were the police and other drivers so kind to the writer?A.Because they thought the writer liked studying very much and needed a bookshelf.B.Because they di dn‟t think it was polite to overtake a car with a bookshelf on it.C.Because they thought somebody in the writer‟s family had died and he needed help. D.Because they thought it was dangerous to carry a bookshelf on a car.( )54、Why did the writer‟s wife begin to laugh?A.Because now she knew what mistake the police had made.B.Because at last her husband understood why the police had driven to the church. C.Because the officer was always looking at the flowers and the bookshelf.D.Because the police had helped them a lot.( )55、When did the officers begin to realize(意识到)they had made a mistake? A.Before they arrived at the church.B.Before they overtook(overtake的过去式)the writer‟s car.C.After one of them looked at the flowers and the bookshelf carefully at the church.D.After the writer‟s family left the church(D)Do you like to tell stories? Do you like to write? Sometimes those questions have two different answers. ____56___ However,it can be hard to write them down on paper.___57____ Even professional(职业的) writers do not write everything perfectly the first time. They have to revise(修正) their work. When you revise your writing,you look for ways to change it that will make it better. ___58____ You make sure that you have used capitals(大写),periods and other punctuation marks in the best way. You look for words that can be taken out or changed for different,more exciting words. You make sure that your words help the reader get a picture in his mind when he reads them.Writing is one of those skills that take practice. The changes you make can turn boring words into exciting words. ___59____ Don‟t be afraid to make changes. The first time you write on a topic,you get your ideas down on paper. __60____ It‟s making it ready for readers to enjoy.根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使短文意思通顺,内容完整,并将其标号填写在下面题号后的横线上。