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2.房山区2023-2024学年度第二学期综合练习(一)九年级数学答案20240425

2.房山区2023-2024学年度第二学期综合练习(一)九年级数学答案20240425

房山区2023-2024学年度第二学期综合练习(一)答案九年级数学第一部分选择题一、选择题(共16分,每题2分)第二部分非选择题二、填空题(共16分,每题2分)9.3x ≠10.(2)(2)y x x +-11.5x =12.<13.36014.1215.216.(1)答案不唯一:ABD ;ACD ;ACE ;ADE ;BE ;(2)ACD .(注:第16题一空1分)三、解答题(共68分,第17-19题,每题5分,第20-21题,每题6分,第22-23题,每题5分,第24题6分,第25题5分,第26题6分,第27-28题,每题7分)解答应写出文字说明、演算步骤或证明过程.17.解:116sin 45()32-︒++--6232=⨯++-5=.18.解:原不等式组为47135.2x x x x ->-⎧⎪⎨-<⎪⎩①②,解不等式①,得2x >.解不等式②,得5x <.∴原不等式组的解集为25x <<.19.解:22222x xy y x y-+-2()2()x y x y -=-2x y -=.∵30x y --=,∴3x y -=.∴原式322x y -==.20.解:设矩形菜园的宽为x 米,则矩形菜园的长为6x 米.由题意可得,106 4.5223x x --=.解得 1.5x =.∴1060.52x-=.答:预留通道的宽度是0.5米,矩形菜园的宽是1.5米.21.(1)证明:∵四边形ABCD 是平行四边形,∴AD ∥BC .∴ADB CBD ∠=∠.∵ABD CBD ∠=∠,∴ABD ADB ∠=∠.∴AB AD =.∴四边形ABCD 是菱形.(2)解:∵四边形ABCD 是菱形,∴AC BD ⊥,2BD OB =,12DBE ABC ∠=∠.∵DE ∥AC ,∴90BDE BOC ∠=∠=︒.∵OB =,∴2BD OB ==.∵60ABC ∠=︒,∴1302DBE ABC ∠=∠=︒.在Rt △BDE 中,tan 3DBE ∠=,BD =.∴tan 3DE DBE BD ∠==.∴2DE =.22.解:(1)∵函数(0)y kx b k =+≠的图象由函数2y x =的图象平移得到,∴2k =.∴得到函数的解析式为2y x b =+.∵函数2y x b =+的图象过点(23),,∴223b ⨯+=.∴1b =-.∴函数y kx b =+的解析式为21y x =-.(2)1m ≥.23.解:(1)30m =,26n =;(2)<;(3)271.24.(1)证明:∵ AE AE =,∴ACE ABE ∠=∠,又∵BE ∥CD ,∴ABE D ∠=∠.∴ACE D ∠=∠.(2)解:连接OC ,交BE 于点F .∵CD 是⊙O 的切线,切点为C ,∴90OCD ∠=︒.∵BE ∥CD ,∴90OFB OCD ∠=∠=︒.∴BE ⊥OC .∴F 为BE 中点.∵O 为直径AB 中点,∴OF 为△AEB 的中位线,∴OF =12AE .∵3AE =,∴32OF =.∵ AE AE =,∴ACE ABE ∠=∠.∵3tan 4ACE ∠=,∴3tan 4ABE ∠=.∵AB 是⊙O 的直径,∴90AEB ∠=︒.在Rt △AEB 中∵3tan 4ABE ∠=,∴4BE =.由勾股定理得5AB =.∴52OC =.∴1CF =.∵F 为BE 中点,4BE =,∴2EF =.在Rt △ECF 中,由勾股定理得CE ==.25.(1)画出函数2y 的图象,如图.(2)①9.2;② 2.3,3.1,5.0.26.解:(1)令0x =,则22y a =-.当1a =时,1y =-.∴抛物线与y 轴的交点坐标为(01)-,;∵22222()2y x ax a x a =-+-=--,当1a =时,抛物线的顶点坐标为(12)-,.(2)∵11()A x y ,,22()B x y ,是抛物线2222y x ax a =-+-上任意两点,∴211()2y x a =--,222()2y x a =--.∴2212121212()()()(2)y y x a x a x x x x a -=---=-+-.∵1102x <<,2112x <<,∴12x x <,121322x x <+<.∵12x x <,12y y >,∴1220x x a +-<.即122x x a +<.∴322a ≥.∴34a ≥.27.(1)依题意补全图形,如图.(2)90ABE ∠=︒.证明:延长ED 至点M ,使DM ED =,连接AM ,CM .在△EHD 与△MCD 中,HD CD EDH MDC ED DM =⎧⎪∠=∠⎨⎪=⎩,,.∴△EHD ≌△MCD (SAS).∴EHD MCD ∠=∠.∵AD EM ⊥,ED DM =,∴AE AM =.∴22EAM EAD α∠=∠=.∵2BAC α∠=,∴BAE CAM ∠=∠.∵AB AC =,∴△ABE ≌△ACM (SAS).∴ABE ACM ∠=∠.∵EB EH =,∴EBH EHB ∠=∠.设ABC x ∠=,ACM y ∠=.∴EHD MCD x y ∠=∠=+,ABE ACM y ∠=∠=.∴EHB EBH y x ∠=∠=-.∵180EHB EHD y x x y ∠+∠=-++=︒.∴90y =︒.∴90ABE ∠=︒.28.(1)①1P ,2P ;②解:依题意可知,点(20)M ,,点N 为等边三角形边上的点,则12MN ≤≤.∵OP 与以MN 为半径的⊙M 相切于点P ,∴OP MP ⊥,MP MN =.∴90OPM ∠=︒.∴点P 在以OM 为直径的⊙Q 上,且12MN ≤≤,其中点(10)Q ,.∴符合条件的点P 组成的图形为 COD(点O 除外),其中点3(22C ,,33()22D -,,如图,当直线y x b =+与⊙Q 相切时,设切点为G ,与x 轴交点为H ,则QG 与直线y x b =+垂直时,45GHQ ∠=︒.由1QG =,可得QH =∴(10)H .当直线y x b =+过(10)H 时,代入y x b =+中,可得1b =.当直线y x b =+过点3()22D -,时,代入y x b =+中,可得322b =--.∵直线y x b =+上存在“相关切点”,∴b 的取值范围是33122b --≤≤.(2)21m ≤≤或10m ≤.。

2024年春学期九年级语文第一次综合练习

2024年春学期九年级语文第一次综合练习

2024年春学期第一次综合练习九年级语文试卷分值:150分时间:150分钟一、积累与运用(26分)1.古诗文名句填空。

(10分)(1)子在川上曰:____________________,不舍昼夜。

(《论语》)(2)耳闻不如目见,__________________。

(刘向《说苑》)(3)东风不与周郎便,______________________。

(杜牧《赤壁》)(4)___________________,家书抵万金。

(杜甫《春望》)(5)富贵不能淫,__________________,威武不能屈。

(《孟子》三章)(6)陶渊明《饮酒》中将幽美恬静的景象与惬意闲适的情怀相互交融的诗句是:__________________,__________________。

(7)故乡是诗人永远的依恋。

李白在《渡荆门送别》中以“_________________,_________________”表达对故乡的依依不舍;崔颢在《黄鹤楼》中以“日暮乡关何处是?__________________”表达日暮怀归之情。

2.根据语境完成题目。

(7分)九百年前,一个惊才艳绝的天才少年,用千古绝唱展示了自己磅.礴恢宏的精神世界—《千里江山图》,并把自己的诗意浪漫和péng勃的生命力封印其中。

九百年后,有人用一舞《只此青绿》,向九百年前的那个传奇少年致敬。

广袖柳腰轻舞,千里江山共赴,世间唯此青绿。

这不仅是视觉美学的传递,也是传承的文化,更是今人和古人隔着时空的精神呼应,是根植于无数国人内心五千年文明的沉淀.。

传统文化早已不再是玻璃橱窗里静止的展品,它正在以一种更鲜活的形式融入现代生活,成就着不一样的文化盛况。

(1)给语段中加点字注音,根据拼音写汉字。

(3分)磅.礴()沉淀.()péng勃()(2)画波浪线的句子有语病,请将修改后的句子写在下面横线上。

(2分)______________________________________________________________________________________(3)“传统文化早已不再是玻璃橱窗里静止的展品”这句话的主干是:()(2分)A.传统文化是展品B.传统文化不是展品C. 传统文化不再是展品3.下列句子中加点成语运用有误的一项是()(2分)A.工匠精神要求我们,把追求极致的精神和精益求精....的态度贯穿我们工作学习的始终。

2022-2023学年人教版九年级数学上册阶段性(第21章—第24章)综合练习题(附答案)

2022-2023学年人教版九年级数学上册阶段性(第21章—第24章)综合练习题(附答案)

2022-2023学年人教版九年级数学上册阶段性(第21章—第24章)综合练习题(附答案)一、选择题1.下列图形是中心对称图形的是()A.B.C.D.2.若⊙O的半径为5cm,OA=4cm,则点A与⊙O的位置关系是()A.点A在⊙O内B.点A在⊙O上C.点A在⊙O外D.内含3.如果﹣1是方程2x2﹣x+m=0的一个根,则m值()A.﹣1B.1C.3D.﹣34.如图,A,B,C是⊙O上的三个点,若∠C=35°,则∠AOB的度数为()A.35°B.55°C.65°D.70°5.在一个不透明的口袋中装有5个白球,若干个黑球,它们除颜色外其它完全相同,已知摸到白球概率为0.2,则袋子中黑球有多少个?()A.15B.10C.5D.206.将抛物线y=(x﹣1)2+2先向右平移3个单位,再向下平移5个单位得到的抛物线解析式是()A.y=(x﹣4)2+7B.y=(x﹣4)2﹣3C.y=(x+2)2+7D.y=(x+2)2﹣3 7.新能源汽车节能、环保,越来越受消费者喜爱,各种品牌相继投放市场,我国新能源汽车近几年销量全球第一,2016年销量为50.7万辆,销量逐年增加,到2018年销量为125.6万辆.设年平均增长率为x,可列方程为()A.50.7(1+x)2=125.6B.125.6(1﹣x)2=50.7C.50.7(1+2x)=125.6D.50.7(1+x2)=125.68.如图,AB是⊙O的直径,弦CD⊥AB,垂足为P,若CD=8,PB=2,则⊙O直径()A.10B.8C.5D.39.已知二次函数y=ax2+bx+c(a≠0)图像的一部分如图所示,给出以下结论:①abc<0;②当x=﹣1时,函数有最大值;③方程ax2+bx+c=0的解是x1=1,x2=﹣3;④4a+2b+c>0;⑤2a﹣b=0;其中结论正确的个数是()A.1B.2C.3D.410.如图,在菱形ABCD中,∠B=60°,AB=2.动点P从点B出发,以每秒1个单位长度的速度沿折线BA→AC运动到点C,同时动点Q从点A出发,以相同速度沿折线AC →CD运动到点D,当一个点停止运动时,另一点也随之停止.设△APQ的面积为y,运动时间为x秒.则下列图象能大致反映y与x之间函数关系的是()A.B.C.D.二、填空题11.一个盒子内装有大小、形状相同的6个球,其中红球3个、绿球1个、白球2个,任意摸出一个球,则摸到白球的概率是.12.已知圆锥的底面直径为4cm,母线长为6cm,则此圆锥的侧面积为.13.若关于x的一元二次方程kx2﹣x﹣1=0有两个实数根,则k的取值范围.14.在Rt△ABC中,∠C=90°,BC=3,AC=4,则△ABC的外接圆半径是.15.如图,将△ABC的绕点A顺时针旋转得到△AED,点D正好落在BC边上.已知∠C=80°,则∠EAB=°.16.如图,正六边形ABCDEF内接于圆O,边长AB=2,则正六边形的面积是.17.如图,点C在以O为圆心的半圆内一点,直径AB=4,∠BCO=90°,∠OBC=30°,将△BOC绕圆心逆时针旋转到使点C的对应点C′在半径OA上,则边BC扫过区域(图中阴影部分)面积为.(结果保留π)三、解答题18.解一元二次方程:x2﹣2x=9.19.如图所示,有一建筑工地从10m高的窗口A处用水管向外喷水,喷出的水呈抛物线状,如果抛物线的最高点M离墙1m,离地面m.(1)求抛物线的解析式;(2)求水流落地点B离墙的距离OB.20.已知:在△ABC中,AB=AC.(1)求作:△ABC外接圆(要求:尺规作图,保留作图痕迹,不写作法)(2)若△ABC的外接圆的圆心O到BC边的距离为4,BC=6,则S⊙O=.21.为落实“垃圾分类”,环卫部门要求垃圾要按A、B、C三类分别装袋投放,其中A类指废电池、过期药品等有毒垃圾,B类指剩余食品等厨余垃圾,C类指塑料、废纸等可回收垃圾,甲、乙各投放了一袋垃圾.(1)直接写出甲投放的垃圾恰好是A类的概率;(2)求甲乙投放的垃圾恰好是同类垃圾的概率(要求画出树状图).22.已知关于x的一元二次方程x2﹣(2k+1)x+k2+k=0.(1)求证:无论k为任何实数,方程总有两个不相等的实数根;(2)若两个实数根x1,x2满足(x1+1)(x2+1)=30,求k值.23.如图,已知正方形ABCD的边长为3,E、F分别是边BC、CD上的点,∠EAF=45°.(1)求证:BE+DF=EF;(2)当BE=1时,求EF的长.24.如图:以△ABC的边AB为直径作⊙O,点C在⊙O上,BD是⊙O的弦,∠A=∠CBD,过点C作CF⊥AB于点交于点G,过点C作CE∥BD交AB的延长线于点E.(1)求证:CG=BG;(2)∠ABD=30°,CG=4,求BE的长.25.如图,已知抛物线y=ax2+bx+5经过A(﹣5,0),B(﹣4,﹣3)两点,与x轴的另一个交点为C,顶点为D,连接CD.(1)求该抛物线的表达式;(2)点P为该抛物线上一动点(与点B,C不重合),设点P的横坐标为t.①当点P在直线BC的下方运动时,求△PBC的面积的最大值及点P的坐标;②该抛物线上是否存在点P,使得∠PBC=∠BCD?若存在,求出所有点P的坐标;若不存在,请说明理由.参考答案一、选择题1.解:选项B、C、D都不能找到这样的一个点,使图形绕某一点旋转180°后与原来的图形重合,所以不是中心对称图形.选项A能找到这样的一个点,使图形绕某一点旋转180°后与原来的图形重合,所以是中心对称图形.故选:A.2.解:∵⊙O的半径为5cm,OA=4cm,∴点A与⊙O的位置关系是:点A在⊙O内.故选:A.3.解:由题意得:把x=﹣1代入2x2﹣x+m=0,则2×(﹣1)2﹣(﹣1)+m=0,解得:m=﹣3;故选:D.4.解:∵A,B,C是⊙O上的三个点,∠C=35°,∴∠AOB=2∠C=70°.故选:D.5.解:设黑球个数为x个,∵摸到白色球的频率稳定在0.2左右,∴口袋中得到白色球的概率为0.2,∴,解得:x=20,经检验,x=20是原方程的解.故黑球的个数为20个.故选:D.6.解:将抛物线y=(x﹣1)2+2先向右平移3个单位,再向下平移5个单位得到的抛物线解析式是y=(x﹣1﹣3)2+2﹣5,即y=(x﹣4)2﹣3,故选:B.7.解:设年平均增长率为x,可列方程为:50.7(1+x)2=125.6,故选:A.8.解:如图,连接OC.∵AB是⊙O的直径,弦CD⊥AB,CD=8,∴∠OPC=90°,PC=CD=4,∴在直角△OPC中,OC2=42+(OC﹣2)2,解得,OC=5.∴AB=2OC=10.故选:A.9.解:∵抛物线开口向下,∴a<0,∵抛物线的对称轴为直线x==﹣1,∴b=2a<0,2a﹣b=0,故⑤正确,∵抛物线与y轴的交点在x轴上方,∴c>0,∴abc>0,所以①错误;∵抛物线开口向下,对称轴为直线x=﹣1,∴当x=﹣1时,函数有最大值,所以②正确;∵抛物线与x轴的一个交点坐标为(1,0),而对称轴为直线x=﹣1,∴抛物线与x轴的另一个交点坐标为(−3,0),∴当x=1或x=﹣3时,函数y的值都等于0,∴方程ax2+bx+c=0的解是:x1=1,x2=﹣3,所以③正确;∵x=2时,y<0,∴4a+2b+c<0,所以④错误,综上,正确的有②③⑤.10.解:当0≤x≤2时,如图1,过点Q作QH⊥AB于H,由题意可得BP=AQ=x,∵在菱形ABCD中,∠B=60°,AB=2,∴AB=BC=AD=CD,∠B=∠D=60°,∴△ABC和△ADC都是等边三角形,∴AC=AB=2,∠BAC=60°=∠ACD,∴HQ=x,∴△APQ的面积=y=(2﹣x)×x=﹣(x﹣1)2+;当2<x≤4时,如图2,过点Q作QN⊥AC于N,由题意可得AP=CQ=x﹣2,∴NQ=(x﹣2),∴△APQ的面积=y=(x﹣2)×(x﹣2)=(x﹣2)2,∴该图象开口向上,对称轴为直线x=2,∴在2<x≤4时,y随x的增大而增大,∴当x=4时,y有最大值为,故选:A.二、填空题11.解:由题意得:从盒子中任意摸出一个球共有6种等可能性的结果,其中,摸到白球的则摸到白球的概率为,故答案为:.12.解:圆锥的侧面积=×2π×2×6=12π(cm2).故答案为12πcm2.13.解:∵关于x的一元二次方程kx2﹣x﹣1=0有两个实数根,∴(﹣1)2+4k≥0且k≠0,解得k≥且k≠0.故答案为:k≥且k≠0.14.解:作△ABC的外接圆⊙O,∵∠C=90°,∴AB是⊙O直径,∵AB2=AC2+BC2,∴AB2=42+32,∴AB=5,∴△ABC的外接圆半径是:r=AB=2.5,故答案为:2.5.15.解:∵△ABC的绕点A顺时针旋转得到△AED,∴AC=AD,∠BAC=∠EAD,∵点D正好落在BC边上,∴∠C=∠ADC=80°,∴∠CAD=180°﹣2×80°=20°,∵∠BAE=∠EAD﹣∠BAD,∠CAD=∠BAC﹣∠BAD,∴∠BAE=∠CAD,∴∠EAB=20°.故答案为:20.16.解:连接OA,OB,作OG⊥AB交AB于点G由题意得中心角∠AOB=60°则∠AOG=30°,△AOB为等边三角形OA=AB=2,根据垂径定理得AG==1,由勾股定理得,.故答案为:.17.解:∵∠BCO=90°,∠OBC=30°,∴OC=OB=1,BC=,则边BC扫过区域的面积为:==π.故答案为:π.三、解答题18.解:x2﹣2x=9,x2﹣2x+1=9+1,(x﹣1)2=10,,,.19.解:(1)可建立如图所示坐标系,由题知A(0,10),顶点坐标M(1,),设y=a(x﹣1)2+,将(0,10)代入,得a=10﹣=﹣,即y=﹣(x﹣1)2+=﹣(x2﹣2x+1)+=﹣x2+x+10;(2)将y=0代入得:﹣x2+x+10=0,解得:x=3或x=﹣1(舍去),即OB=3米.20.解:(1)如图,⊙O为所作;(2)连接OB,延长AO交BC于D,如图,设⊙O的半径为r,∵AB=AC,OB=OC,∴AD垂直平分BC,∴OD=4,BD=CD=3,在Rt△OBD中,OB==5,∴S⊙O=π•52=25π.故答案为25π.21.解:(1)∵垃圾要按A,B,C三类分别装袋,甲投放了一袋垃圾,∴甲投放的垃圾恰好是A类的概率为:;(2)如图所示:由图可知,共有9种可能结果,其中甲投放的垃圾与乙投放的垃圾是同一类的结果有3种,所以甲投放的垃圾与乙投放的垃圾是同一类的概率为=.22.(1)证明:∵Δ=(2k+1)2﹣4(k2+k)=1>0∴无论k取任何实数值,方程总有两个不相等的实数根.(2)解:∵x1+x2=2k+1,x1x2=k2+k,∴(x1+1)(x2+1)=x1x2+x1+x2+1=30,∴k2+k+2k+1+1=30,解得:k1=﹣7,k2=4.23.(1)证明:∵四边形ABCD是正方形,∴AD=AB,∠DAB=∠D=∠ABE=∠C=90°,如图,将△ADE绕点A顺时针旋转90°得到△ABG,由旋转得∠F AG=90°,∠ABG=∠D=90°,∠BAG=∠DAF,BG=DF,AG=AF,∵∠ABG+∠ABE=180°,∴点G、B、E在同一条直线上,∵∠EAF=45°,∴∠EAG=∠BAG+∠BAE=∠DAF+∠BAE=45°,∴∠EAG=∠EAF,在△EAG和△EAF中,,∴△EAG≌△EAF(SAS),∴EG=EF,∵EG=BE+BG=BE+DF,∴BE+DF=EF.(2)解:设EF=x,∵BC=CD=3,BE=1,∴DF=EF﹣BE=x﹣1,CE=BC﹣BE=2,∴CF=CD﹣DF=3﹣(x﹣1)=4﹣x,∵CE2+CF2=EF2,∴22+(4﹣x)2=x2,解得x=,∴EF的长为.24.解:(1)∵AB为直径,∴∠ACB=90°,∵CF⊥AB,∴∠ACB=∠CFB=90°,∵∠ABC=∠CBF,∴∠A=∠BCF,∵∠A=∠CBD,∴∠BCF=∠CBD,∴CG=BG;(2)连接AD,∵AB为直径,∴∠ADB=90°,∵∠BAD=30°,∴∠BAD=60°,∵=,∴∠DAC=∠BAC=∠BAD=30°,∴=,∵CE∥BD,∴∠E=∠DBA=30°,∴AC=CE,∴,∵∠A=∠BCF=∠CBD=30°,∴∠BCE=30°,∴BE=BC,∵CG=4,∴BC=,∴BE=.25.解:(1)将点A(﹣5,0)、B(﹣4,﹣3)代入抛物线y=ax2+bx+5,得:,解得:,∴该抛物线的表达式为:y=x2+6x+5…①;(2)①令y=0,得x2+6x+5=0,解得:x1=﹣1,x2=﹣5,∴点C(﹣1,0),设直线BC的解析式为y=kx+d,将点B、C的坐标代入得:,解得:,∴直线BC的解析式为y=x+1…②,如图1,过点P作y轴的平行线交BC于点G,设点G(t,t+1),则点P(t,t2+6t+5),∴PG=t+1﹣(t2+6t+5)=﹣t2﹣5t﹣4,∴S△PBC=PG•(x C﹣x B)=×(﹣t2﹣5t﹣4)×3=﹣t2﹣t﹣6=﹣(t+)2+,∵−<0,∴S△PBC有最大值,当t=﹣时,其最大值为,此时P(﹣,﹣);②∵y=x2+6x+5=(x+3)2﹣4,∴顶点D(﹣3,﹣4),设直线BP与CD交于点H,当点P在直线BC下方时,∵∠PBC=∠BCD,∴点H在BC的中垂线上,∵线段BC的中点坐标为(﹣,﹣),过该点与BC垂直的直线的k值为﹣1,设BC中垂线的表达式为:y=﹣x+m,将点(﹣,﹣)代入上式得﹣=﹣(﹣)+m,解得:m=﹣4,∴直线BC中垂线的表达式为:y=﹣x﹣4…③,设直线CD的解析式为y=k′x+b′,把C(﹣1,0),D(﹣3,﹣4)代入得:,解得:,∴直线CD的解析式为:y=2x+2…④,联立③④得:,解得:,∴点H(﹣2,﹣2),设直线BH的解析式为y=k″x+b″,则,解得:,∴直线BH的解析式为:y=x﹣1…⑤,联立①⑤得,解得:,(舍去),故点P(﹣,﹣);当点P(P′)在直线BC上方时,∵∠PBC=∠BCD,∴BP′∥CD,则直线BP′的表达式为:y=2x+s,将点B坐标代入上式并解得:s=5,即直线BP′的表达式为:y=2x+5…⑥,联立①⑥并解得:x=0或﹣4(舍去﹣4),故点P(0,5);综上所述,点P的坐标为P(﹣,﹣)或(0,5).。

九年级化学综合练习

九年级化学综合练习

9化学综合1一、单选题1.学习化学可以了解日常生活中某些变化的本质,下列变化中属于化学变化的是()A.冰雪化成水B.玉米酿成酒C.苹果榨成汁D.木柴劈成片2.下列实验操作错误的是()A.点燃酒精灯B.检查装置气密性C.倾倒液体D.加热液体3.下列物质的用途主要是利用物理性质的是()A.活性炭作防毒面具B.稀有气体用作保护气C.用石灰石制取二氧化碳D.氧气用于焊接切割金属4.空气中含量较多且化学性质不活泼的气体是()A.氮气B.氧气C.水蒸气D.二氧化碳5.下列实验现象的描述中,错误的是()A.木炭在氧气中剧烈燃烧,发出白光,放出热量,倒入澄清石灰水变浑浊B.硫粉在氧气中燃烧更旺,火焰呈明亮的蓝紫色,生成有刺激性气味的气体,放出热量C.红磷在氧气中燃烧更旺,发出白光,产生大量的白烟,放出热量D.铁丝在空气中剧烈燃烧,火星四射,生成四氧化三铁,放出热量6.用水壶烧开水,水沸腾后壶盖被顶起,说明分子()A.由原子构成B.质量很小C.体积变大D.间隙增大7.我们的日常生活中出现了加碘食盐、增铁酱油、高钙牛奶、富硒茶叶等。

这里的碘、铁、钙、硒应理解为()A.元素B.分子C.单质D.氧化物8.下列化学用语书写正确的是()A.氧化铁FeO B.镁离子Mg+2C.2个氢原子2H D.二氧化碳中碳元素的化合价为+29.人们在工作、生活中,为防止事故发生常采用一些安全措施,下列安全措施中正确的是()A.实验室酒精灯倾倒着火,用湿抹布盖灭B.冬天用煤取暖时封闭门窗C.到煤窑中挖煤用火把照明D.厨房内燃气泄漏打开排气扇电源开关通风10.下图中“”分别表示两种不同元素的原子。

能用该示意图表示的化学反应是()A.2H2+O2点燃__2H2O B.2C+O2点燃__2CO C.2CO+O2点燃__2CO2D.H2+Cl2点燃__2HCl11.研发高性能“中国芯”是我国信息产业的当务之急。

“中国芯”的主要材料是高纯度的单质硅,工业上用SiO2+2C 高温__Si+2CO↑来制取粗硅,下列说法正确的...是()A.SiO2中Si的化合价是+2B.该反应为置换反应C.硅元素在地壳中的含量比氧元素多D.该反应体现了C的氧化性12.下列物质属于纯净物的是()A.大理石B.双氧水溶液C.冰水混合物D.洁净的空气13.在一个密闭容器中放入X、Y、Z、W四种物质,在一定条件下发生化学反应,一段时间后,测得有关数据如下表.则关于此反应的说法正确的是()B.该反应的基本类型为分解反应C.反应后生成X的质量为12 gD.参加反应的Z与W的质量比为4:114.中学生应有一定的安全常识。

九年级综合练习物理试卷及答案

九年级综合练习物理试卷及答案

XX学年第二学期海珠区九年级综合练习(一)物理试卷一、单选题(每小题3 分,共36 分)1.甲电磁波的频率是1300kHz,乙电磁波的频率是1000MHz.比较两电磁波A.甲电磁波频率较大B.乙电磁波频率较大C.甲电磁波在真空中传播的速度较大D.乙电磁波在真空中传播的速度较大2.关于太阳能凉帽(如图所示),下列说法正确的是电扇太阳能电池板A.太阳能电池板把太阳能转化为化学能B.电扇工作时获得的机械能由电能转化而来C.电能是可再生能源D.太阳能是不可再生能源3.在加热材料M 的一段时间内,M 的体积增大,温度一直低于其熔点.此过程A.M 处于固态B.M 的质量变大C.M 处于液态D.M 的密度变大4.天芯在拉大提琴时,相比粗钢丝弦,细钢丝弦发出的声音频率较高.则A.细钢丝弦发出的是超声波B.细钢丝弦振动的幅度比较大C.细钢丝弦振动1 次所用的时间较长D.1s 内细钢丝弦振动的次数较多5.蜡烛、透镜(焦距f=10cm)、光屏在光具座上的位置如图所示时,光屏上恰好成像.下列说法正确的是光具座A.此时光屏上成倒立缩小的像B.此时光屏上成正立放大的像C.透镜位置不变,将蜡烛向右移动后,调整光屏位置,光屏上一定能成像D.透镜位置不变,将蜡烛向左移动后,调整光屏位置,光屏上一定能成像①小球 细绳O② vM③④气态制冷剂 乙 甲6.被细绳拴着的小球在水.平.桌.面.绕 O 点以大小为 v 的速度做圆周运动,轨迹如图中虚线① 所示.每一时刻小球的速度方向与细绳垂直,不计阻力,某时刻小球在图示 M 位置时细 绳断.则小球A .沿原来圆形轨迹①以速度 v 运动B .沿轨迹②以速度 v 做匀速直线运动C .沿轨迹③以速度 v 做匀速直线运动D .沿轨迹④竖直向下运动7.右图是冰箱制冷剂循环路线示意图.制冷剂在 冷冻室的管子里发生的物态变化是 A .液化 B .升华 C .汽化 D .凝固冷冻室的管子液态制冷剂气态制冷剂8.把榴莲和煮熟的咸鱼都放在冰箱里同一层,到了第二天,老王吃榴莲时闻到有一股咸鱼 味.以下判断正确的是A .打开冰箱时,榴莲的温度肯定比咸鱼的低B .榴莲肯定吸收了咸鱼的热量C .咸鱼不停地做机械运动D .吃咸鱼时也会闻到有榴莲味9.甲、乙两人同时从同一起跑线出发,同向做匀速直线运动,某时刻他们的位置如下图所 示.四个坐标图象中,能正确反映上述特征的图象是起跑线甲s甲 s乙 v 甲v乙甲乙乙A tBtCtDt10.下列说法正确的是 A .太阳光通过三棱镜分解出红、绿、蓝共三种色光,这是光的色散 B .三原色光按一定的比例混合,可以产生白光 C .烤炉用红外线加热食品,主要是利用红外线传递信息D .紫外线照射百元钞能看到 “100”的萤光标记,因为人眼看到了纸币反射的紫外线11.下图所示电路盒内有电源和导线,面板上有两个灯泡L1、L2,两个开关S1、S2.要探究盒内的电路连接,小明做了多次实验并将结果填入下表.以下四个电路,符合上述发光情况的是A B C D12.小明连好甲实验的电路(电路各部分接触良好).开关闭合前,在导线下方的小磁针指向固定不变.开关试触,小磁针没有发生偏转.当只把电源正、负极对调,进行乙实验,开关试触,发现小磁针的指向作了180º偏转.以下观点正确的是甲实验乙实验试触时A.开关没闭合时,小磁针的N 极指向地磁的北极B.甲实验开关闭合时,小磁针没有偏转,说明此时导线周围不存在磁场C.乙实验试触时,导线对小磁针有力的作用,小磁针对导线没有力的作用D.本组实验说明,电流的磁场方向与电流方向有关S2L1L2S1S2L1S1L2S2L2L1S1S2L2L1S1只闭合开关S1S2S1、S2L1 发光情况亮不亮亮L2 发光情况亮不亮不亮L1 S1L2S2电 阻散失的能量 共 1400J燃料完全燃烧释放 的能量有用机械能 600J30º水面图 1井的底部第二部分(非选择题 共 64 分)二、填空 作图题(共 27 分)13.图 1 所示,用一块平面镜使一束光竖.直.射入水井. (1)画出光经过空气和水,射到井底的光路. (2)通过作图标出平面镜(用“”表示)的位置.要求:保留作图痕迹.(3)光经过平面镜发生反射,在图中标出反射角的度数.火线零线 地线图 214.插线板上:指示灯在开关断开时不亮,插孔不能提供工作电压;而在开关闭合时指示灯 发光,插孔可以提供工作电压;若指示灯损坏,开关闭合时插孔也能提供工作电压.根据 上述特点,在图 2 中画出开关、指示灯和插孔的连接方式,并把接线板与电源线接通.15.图 3 是小轿车汽油机工作时的能量转化示意图.已知: 汽油热值 q =4.6×107J/kg ,比热容 c =2.2×103J/(kg •℃) (1)该热机的效率是.(2)若该车完全燃烧 2kg 汽油,释放的能量为J .图 316.如图 4 所示,在粗糙轨道的 A 处,小球具有 10J 的重力势能.它被静止释放后,运动 到轨道 C 处.图 4B MNC图 5B(1)小球在 MN 段的速度大小会不会发生改变?请说明原因. 答:.原因是:.(2)若把后半段的水平直轨道改为弯曲轨道,如图 5 所示.小球仍在 A 点静止释放,到达 最高点 D 时,它的动能为J .小球在 A 点时的机械能在 D 点的机械能.(选填:“<”、“>”或“=”)AhDh ′ Aha IN bS17.如图 6 所示,把两个发光二极管极性相反地并联起来,组成二极管组.把它的 a 、 b 端 分别接在手摇发电机和干电池组上时,将观察到的现象记录在下表中.甲 乙a(1)表格中漏写的现象是.b(2)该发电机工作时的能量转化是:能转化为能;(3)图 7 是研究交流发电机的原理图. 图 6 当线圈在磁体中顺时针转动时,ab 中电流方向如图 7 所示; 当线圈在另外一个磁体中逆时针转动时,在图 8 中用箭头标出 ab 中电流方向.图 7图 818.车轮与地面的接触面积,与汽车轮胎气压、轮胎对地压力有关.现测得某.个.轮.胎.数据在 下表(其它因素已控制相同)实验1 2 3 4 轮胎气压 /×105Pa 4.6 4.6 8.1 8.1 轮胎对地压力 /×104NF 1 F 2 F 3 F 4 车轮与地面的接触面积 /×10-2m 23.64.03.03.6(1)若实验 1 中的 F 1=1.8×104 N ,则该轮胎对地面压强的大小为 Pa .(2)表格中的两个力:F 1F 2.(选填:“=”或“≠”)判断的依据是:.19.如图 9 所示,可绕 O 点转动的杠杆(质量忽略不计),在 C 点挂一个质量为 10kg 的物 体 M .依次在 A 、B 两点沿与圆 O 相切的方向用力拉,都使杠杆在水平位置平衡.已知: CO=OD=DA=AB (g 取 10N/kg ) (1)作出 F A 的动力臂 l A ;F A =N .(2)比较两个力的大小:F AF B .推导分析过程是:.(3)若在 E 点施加最小的动力,也能使杠杆水平平衡.在图 9 中画出该力 F E 的示意图.CODAEBF B F AM图 9aSbN手摇发电机 干电池组 现 象甲、乙交替发光甲一直发光; 乙1 23A0 1 2 3V0.6 33 15定值电阻P三、解析题(第 20 题 7 分,第 21 题 9 分,共 16 分)20.一个西瓜慢慢放入装满水的桶中时,排出 40N 的水,最后漂浮如图 10 所示. (g 取 10N/kg ;ρ 水=1.0×103kg/m 3) (1)求西瓜的重力.(2)从水中缓慢托起西瓜,直到它离开水面的过程中,小明感到:竖直向上用的力越来越大. 请用学过的知识解释这种现象.(3)如图 11 所示,小明抱着西瓜,从一楼匀速走到二楼. 小明对西瓜做了多少功?图 1021.为比较两种液体的比热容大小,小明用图 12 所示两相同的装置盛质量相同的甲、乙两 种液体进行实验.其中两电热器规格均为“220V ,880W ”,实验时均正常工作,实验数 据记录如下表.忽略热量损失,求:(1)电热器正常工作电流是多大?其阻值是多大? (2)乙液体中的电热器,消耗的电能是多少? (3)哪种液体的比热容较大?写出分析的过程.电热器 图 12物质 初始温度/℃加热时间/s最后温度/℃甲液体 20 200 50 乙液体2010050四、实验 探究题(共 21 分)22.在验证“通过导体的电流与导体两端电压的关系”的实验中(1)用笔画线代替导线,将图 13 中的电路连接完整.并在方框内画出对应的电路图.图 13图 11(2)下表是通过实验得到的几组数据.实验次数 1 2 3 4 5 6电压/V 0.4 0.8 1.2 2.2 2.4电流/A 0.08 0.16 0.24 0.4 0.48①第4 次实验时的电压表、电流表如图14 所示.U/V2.42.01.61.20.8图14 0.40 0.16 0.32 0.48图15I/A 由图可知,仪器测得:U =V;I =A.②在表中数据在图15 的坐标系中描点.小芳分析其中一组数据可能是读数时出错,需要剔除,这是第次实验的数据.并完成连线.(3)换用另一个定值电阻再次进行验证实验.当开关闭合时,小明发现电流表指针偏转,而电压表指针没有偏转(电压表经检测,能正常使用).则电路可能发生的故障是.23.小明猜想:滑动摩擦力大小与以下三个因素有关①接触面所受的压力大小;②接触面的粗糙程度;③接触面面积大小(1)如图16 所示,两材质相同的正方体木块,N 木块长度为cm.图16 NM(2)为了探究“滑动摩擦力大小与接触面面积大小”的关系,小明利用以上两木块、书桌 的水平面和弹簧测力计进行实验探究. ①第 1次实验时示意图如下,存在的错误是.②重新准确做出第 1 次实验后,再做了第 2 次实验.在方框内画出第 2 次实验时的示意图.第 1 次实验 第 2 次实验③上述两次实验操作均正确,以“ ”表示被拉物体,在方框内画出物体在水平方向的受力 示意图.图 17④其中第 1 次测力计的示数如图 17 所示,f 1= N ;第 2 次实验,测得物体所受的摩擦力为 f 2. 通过比较,小明发现:f 1= f 2 .由此可以初步认为.24.如图 18 所示,水平台上有一个量程足够大的天平,小明只用这个器材(含砝码)设计实验,测量自带学生奶(如图 19 所示,可自行处理)的密度.图 18(1)调节天平水平平衡.具体的操作是:.(2)实验步骤(测量的物理量要用符号表示)图 19(3)牛奶密度表达式:ρ 奶=.游码平衡螺母 M N测力计净含量 200mlXX 学年下学期海珠区九年级综合测试(一)物理参考答案一、选择题(每小题 3 分,共 36 分)每小题给出的四个选项中,只有一项最符合题意. 1.B 2.B 3.A4.D5.D6.B7.C8.D9.D10.B11.B 12.D二.填空 作图题(共 27 分) 13.14.15.(1)30%;(2)9.2×107J16.(1)会;水平方向受到摩擦力,物体受力不平衡(或:由于存在摩擦,部分动能转化为 内能)(2)0;>17.(1)不发光;(2)机械;电;(3)18.(1)5×105 Pa ;(2)≠; 因为轮胎气压相等,而车与地面的接触面积不相等,所以压力不等。

黑龙江省牡丹江市2024-2025学年九年级上学期综合练习英语试题

黑龙江省牡丹江市2024-2025学年九年级上学期综合练习英语试题

2024—2025学年度第一学期九年级综合练习(一)英语考生注意:1. 考试时间90分钟;2. 全卷共七道大题,总分120分;3. 请在答题卡上作答,在试卷上作答无效。

第一部分语言知识运用(共计45分)Ⅰ. Multiple choice(本题共15分,每小题1分)Choose the best answer from A, B or C according to the meaning of the sentence.1. I find ________ important for students to develop good reading habits from an early age.A. thatB. oneC. it2. China's self- developed bullet train(高速列车), CR450, can travel at a top ________ hitting453 km/h.A. requestB. speedC. reunion3. —Recently Chinese has become a bridge to ________ China with the whole world.—I can't agree with you more.A. increaseB. involveC. connect4. Years of competition has taught Zheng Qinwen, China's first Olympic gold winner in the tennis singles (单打), to keep ________ in matches.A. patientB. impoliteC. fascinating5. —Is Cindy your good friend, Jenny?—Yes. She sits ________ me in the classroom and we also have the similar learning habits.A. besideB. againstC. below6. —Susan, can you help me ________ the dinner table?—No problem. I'd be happy to help you, Mom.A. lay outB. put onC. set off7. Since the new supermarket opened closer to my home, it has become ________ for me to do some shopping.A. convenientB. more convenientC. the most convenient8. —Alex, you're really fit. ________ do you go to the sports center?—Almost every day. You know, I like running.A. How oftenB. How soonC. How long9. —We'll finish the chemistry studying program tomorrow.—________ we have to say goodbye, I will remember our friends forever.A. BecauseB. AlthoughC. Unless10. —Could you tell me if there's an underground parking lot nearby?—Yes, I ________. Look, it's across from the library.A. mustB. couldC. can11. As an excellent student, she always makes a good plan at first and spends every minute learning ________.A. wiselyB. suddenlyC. comfortably12. The Chinese swimming team trained hard ________ a moment of glory (荣耀)at the 33rd Summer Olympic Games in France.A. creatingB. to createC. created13. —Do you know ________?—Yes. We should remember to turn off lights when we leave the classroom.A. how can we live a green lifeB. how we can live a green lifeC. why we should live a green life14. —I didn't see you at the lantern fair yesterday afternoon. Where were you then?—I ________ lessons with my friend in the library.A. reviewedB. have reviewedC. was reviewing15. —I feel that I'll never get any better at playing the piano.—________ The more you play, the better you'll become.A. Use it or lose it.B. It serves you right.C. Practice makes perfect.Ⅱ. Communication(本题共15分,A题每小题1分,B题每小题2分)(A)Choose the best response from A to G in the box to complete the dialogue. Each choice should be used only once.A. I hope I can experience it myself next year.B. I like eating dumplings with beef and carrots.C. Can you tell me something about the festival?D. Whoever eats the dumplings with coins is lucky.E. What do you know about the Chinese New Year?F. I'm interested in Chinese festivals, especially the Chinese New Year.G. During the festival, we enjoy the family dinner and give gifts to each other.A: Nice to meet you! I'm Iris, from Australia.B: Nice to meet you, too! I'm Zhao Yu. I come from China.A: China? It's a great country. (16)_______________B: Really? It's one of the most popular festivals in our country.A: Wow! (17)_______________B: Of course. On the Chinese New Year's Eve, we always make dumplings with our family members. And we put some coins(硬币)into the dumplings. (18)_______________A: That's cool. Anything else?B: (19)_______________A: Oh, I like gifts. I usually can't wait to open the gift when I get it.B: But in China, you shouldn't open the gift at once. You should wait and open it later.A: That's interesting. (20)_______________ .(B)Complete the dialogue with proper sentences.(On the street corner)A: Excuse me. (21)_______________ ? I can't find my way!B: No problem.A: How can I get to Xinhua Bookstore?B: Just walk down Main Street and turn right at the second crossing. Then walk on until you see it on your left. It's near the bank.A: I see. (22)_______________?B: Just about 15 minutes' walk, not far from here.A: By the way, (23)_______________?B: Yes, it closes at 17: 00.A: Oh, it's 16: 30 now. I must hurry up.B: (24)_______________. There are many shared bikes there. (25)_______________?A: Good idea! Thanks a lot.B: You're welcome.Ⅲ. Cloze test(本题共15分,每小题1分)I'm an English self- learner. English isn't my mother language, 26 it wasn't easy for me to learn. I was a slow learner when I was little. I couldn't even speak in full 27 before five. My learning problems were the result of my illness when I was a baby. 28 I was born, the doctors found that I had a(n)29 disease(疾病)and I might not live for over a month. 30 , I was still alive. But the medicine hurt my 31 a little.My mother encouraged me not to 32 when I faced difficulties. At the age of 13, I 33 myself to be interested in English. I developed a habit of listening to English programs and 34 notes in English while reading. In order to improve my speaking 35 , I often told my friends many stories in English. I kept learning, and realized that no matter 36 hard my situation was, I must move on to learn English well. After studying English for ten years, I 37 passed the TOEFL(托福考试). Now I'm a CEO of a big company.Give 38 one more chance to succeed when you are in trouble. Success has less to do with IQ(智商)but 39 to do with hard work, confidence(信心)and persistence (坚持). You just need to set a goal (目标)and keep 40 no matter what you' re interested in. Have confidence and never give up, and your hard work will pay off.Choose the best choice from A, B or C according to what you read.26. A. and B. so C. but27. A. sentences B. traditions C. experiences28. A. If B. Because C. After29. A. active B. difficult C. serious30. A. Luckily B. Probably C. Completely31. A. pattern B. brain C. address32. A. look up B. count down C. give up33. A. discovered B. repeated C. memorized34. A. to take B. taking C. taken35. A. attention B. knowledge C. ability36. A. how B. when C. where37. A. suddenly B. successfully C. quietly38. A. myself B. yourself C. himself39. A. more B. better C. less40. A. well- known B. kind- hearted C. hard- working第二部分阅读理解(共计35分)Ⅳ. Reading comprehension(本题共35分,A、B、C题每小题1分,D、E题每小题2分)(A)A. Hailan Home is a great shop for men. Its clothes are comfortable to wear. It is more suitable(合适的)for people who often have important events.B. Morning Chinese is a famous language learning school for foreigners planning to learn or improve their Chinese language skills, from beginners to advanced (高级的)students. It has excellent teachers and good teaching ways that help you learn Chinese faster and better.C. Shanghai Pence Hotel is one of the top ten hotels in Shanghai. As a five- star hotel, it has clean rooms and great service. But the price is also high.D. Shanghai Tower is one of the most famous places for visitors in Shanghai. Getting to the one hundred and eighteenth floor by lift (电梯), you can see the whole Lujiazui in Shanghai.E. Dexing Restaurant is an over 150- year- old restaurant in Shanghai. It provides many famous dishes and much special morning tea. What's more, the food there is not very expensive.F. Zhihui Gardon Homestay is a great family hotel for anyone who wants to save money and live a comfortable life. Here you can taste good food and enjoy Chinese culture.Match the information according to what you read.41. Jenny is interested in Chinese food. She is looking forward to tasting the traditional food in Shanghai.42. Lucy enjoys travelling around. She knows Shanghai is a fantastic city to visit. Now she wants to know where to go first in Shanghai.43. John doesn't have- relatives or friends in Shanghai. Living in a hotel is too expensive for him. He is worried about this.44. Tom plans to go to an important Chinese friend’s birthday party. But his shirts and trousers are too old. He needs to buy some new clothes.45. Martin comes from America. His Chinese is quite poor. Next month, he'll move to China and work in Shanghai, so he hopes to learn Chinese as soon as possible.(B)Online TeacherGreat Online Teacher has many excellent teachers. Check them out now!James Wilson ★★★★☆189 reviews (评论)●Explain concepts (概念)with fun and proper examples.●Help improve understanding in all areas of science.ScienceElizabeth Thompson ★★★★☆153 reviews●Good at teaching grammar, words, and reading skills.●Find ways to learn with practice.EnglishThomas Clark ★★★★★216 reviews●Make concepts easy to understand.●Introduce different skills in solving problems.MathGrace Matthews ★★★★★172 reviews●Help remember names, dates, and events quickly and correctly.●Introduce ways to write better answers.HistoryPrice●$ 10 an hour— each lesson is two hours long.●Get 20% off when you sign up(报名)for more than 10 lessons at once.Contact (联系)Information●Phone number: 628-8890●Business hours: Monday—Friday, 8: 00—17: 00Saturday—Sunday, 9: 00—15: 00Choose the best choice from A, B or C according to the passage.46. Which teacher should Bob choose if he has difficulty in solving math problems?A. Thomas Clark.B. Elizabeth Thompson.C. Grace Matthews.47. How long does each class last?A. 60 minutes.B. 90 minutes.C. 120 minutes.48. How much will Jenny pay if she signs up for 15 English lessons?A. $150.B. $240.C. $300.49. When can students contact the teachers?A. At 7: 00 on Tuesday.B. At 8: 00 on Saturday.C. At 12: 00 on Sunday.50. In which part of a website can you see the material (材料)?A. Education.B. Technology.C. Sport.(C)The Fish Festival is a traditional festival of Miao People in Guizhou. It's from June 2 to 16 of the Chinese lunar calendar. Miao people hold fish- catching competitions at the local rivers. It is said that the more fish people catch, themore luck they’ll have for the rest of the year.At midnight before the festival, several people shout the coming of the festival from the hills. Early the next morning, Miao girls dress. themselves in colorful ethnic costumes (民族服装)to welcome the festival. At the opening ceremony(仪式), some strong men hang a cow on a tree. Lots of people come together on the river banks (岸)and watch the opening ceremony. It's really amazing!After the opening ceremony, the fish- catching begins. Fish- catching includes catching fish from the sky as well as taking them from the river. A group of people jump into the river and try to catch fish. At the same time, another group tries to catch fish that people throw into the air. If one catches one fish, he will get good luck.Besides fish- catching, other activities include bamboo pole(杆)dancing, winding Lusheng(芦笙舞)and singing Miao songs. The festival usually ends in a happy water fight.Choose the best choice from A, B or C according to the passage.51. How long does the Fish Festival last?A. A week.B. Half a month.C. A month.52. What do some strong men hang on a tree on the day of the Fish Festival?A. A cow.B. A sheep.C. A fish.53. Why will people join the fish- catching?A. To make friends.B. To make money.C. To get good luck.54. What is usually the last part of the Fish Festival?A. Singing Miao songs.B. Bamboo pole dancing.C. A water fight.55. What's the best title of the passage?A. Fish- catching CompetitionsB. Fish Festival of Miao PeopleC. Traditional Life of Miao People(D)When you ask someone a question in English, it may seem a little impolite if you say something too directly. So when we make requests, we should try to use indirect questions. Keep reading a lot of useful examples, and you will always show good manners (礼貌)no matter what you ask! (56)_________Start with “excuse me” or “pardon me” to get a person's attention. (57)_________ Some things you could try asking include: Excuse me, where is the nearest bus stop? Sorry to bother (打扰)you, but have you seen James at all?(58)_________ Don't say what you need or want to do directly. Ask the other person if it's OK for you to do it. Some questions you could try are: May I use your phone for a minute? May I have some food?Use “can”, “could” or “would” when you ask for help. (59)_________ For example, instead of asking “Where is the bathroom? ”, you could say, “Would you mind telling me where the bathroom is? ” Avoid (避免)asking questions like “(60)_________ ” You could ask instead, “ Could you tell me how long you' re open? ”Choose five sentences out of the six in the box to complete the passage. Each choice should be used only once.A. Where's the store?B. When does the store close?C. Here are some ways to help you be polite.D. Starting a question with “may” is a great choice.E. It sounds a little more polite when you' re asking for information.F. If you're not already talking to the person, try out one of these phrases to start your conversation.(E)The traditional Chongyang Festival, or Double Ninth Festival is a special day in China. It is on the ninth day of the ninth lunar month. People do lots of things on this day. They admire chrysanthemums(菊花), drink chrysanthemum wine(酒), eat special cakes and wear the zhuyu plant. But of all the things people do, climbing a high mountain is the most popular.Why do people like to climb the mountain on this day? Here's a legend (传说).It was said that during the Eastern Han Dynasty, a monster(怪兽)could make people ill and die if it appeared. A young man named Huan Jing, after he lost his parents, learned magic from a famous man for years who could predict the future.One day the man told Huan Jing to go home because the monster was going to appear on the ninth day of the ninth lunar month. Also, the man told him to take the people to the top of a mountain and give each person a zhuyu leaf and a cup of chrysanthemum wine. All the advice and Huan Jing's brave fighting saved all the people and the monster was beaten to death.Today, people believe climbing a high mountain on this day will bring them good luck and help the old live longer.Complete the summary of the passage above with one word for each blank.The Chongyang Festival, also known (61)_ ______ Double Ninth Festival, is on the ninth day of the ninth lunar month in China. Customs on this day include (62)_______ chrysanthemums, drinking chrysanthemum wine, eating special cakes, and wearing zhuyu plants. Climbing a mountain is the most popular activity. According to a legend, during the Eastern Han Dynasty, a monster threatened (威胁)people's (63)_______ until Huan Jing, who had learned magic, followed a famous man's (64)_______ to lead people to a mountain top, with zhuyu leaves and chrysanthemum wine, and finally (65)_______ the monster. Now, people believe that climbing a mountain on this day brings good luck and longevity (长寿), especially to the elderly.第三部分词句运用(共计15分)Ⅴ. Vocabulary and sentence pattern(本题共15分,A题每小题1分,B题每空1分)(A)Fill in the blanks with the proper words according to the Chinese meaning given. Only one word for each blank.66. Linda's parents always ____________ (招待)their neighbors to delicious food.67. She was ____________ (天生的)with a talent for music, and it made her popular among her friends.68. Andrew is new in class and he doesn't know with ____________ (谁)he can make friends.69. When you disagree with someone, it's important to show your opinion ____________ (礼貌地).70. You can see the name of the writer at the ____________ (底部)of the book.(B)Transform the following sentences as required, using only one word for each blank.71. I smelt the breeze at the beginning of spring. (改为一般疑问句)____________ you ____________ the breeze at the beginning of spring?72. The dragon boat teams were really fantastic. (改为感叹句)____________ ____________ dragon boat teams they were!73. Annie developed an interest in English by watching English movies. (对划线部分提问)____________ ____________ Annie develop an interest in English?74. I was too excited to sleep after listening to the band's performance. (改为同义句)I was ____________ excited ____________ I couldn't sleep after listening to the band's performance.75. Where can I buy postcards? Alice asked. (改为宾语从句)Alice asked ____________ she ____________ buy postcards.第四部分语法填空(共计10分)Ⅵ. Grammar- filling(本题共10分,每小题1分)Fill in the blanks with the grammatical knowledge according to the passage.Few words are spoken more often every day on the streets of Britain than “I'm sorry”. This phrase has become such (76)____________ common reply that it has taken on a lot of meanings. Saying “sorry” (77)____________ (mean)to apologize(道歉). This is simple and easy to understand. We learn it both as a native (当地的)speaker and as a student of foreign languages.But in Britain, it takes on another meaning. It is a cultural (78)____________ (express). Imagine this: a man walks down the street, looking down at (79)____________ (he)phone. A woman is walking (80)____________ the opposite direction, toward the man. She sees him, but she can't get out of the way in time. The man runs into the woman. Who should say sorry? (81)____________ (normal), the man should say sorry, because it (82)____________ (be)he who wasn't looking where he was going. But in Britain, it is common for both to apologize.It is known that British people, like most people, do not enjoy conflict (冲突). So to quickly solve the situation, British people will say sorry to each other.Other times it may sound funny (83)____________ (hear)“sorry”. Some of my friends say it at (84)____________ (restaurant). For example, they ask the waiter, “Sorry, but can I order another drink? ” It is not to apologize, (85)____________ just to express that they need the waiter. In Britain, “ sorry” doesn't always mean exactly what you think.第五部分书面表达(共计15分)Ⅶ. Writing(本题共15分,A题5分,B题10分)(注意.....).......,否则不赋分..:文中不能出现考生真实姓名............、学校名和老师名(A)假设你是学校英语学习俱乐部的负责人Jane,你发现俱乐部的留言板中有一些关于学生在英语学习中遇到困难的留言。

北京市朝阳区2023九年级综合练习(初三英语一模)参考答案

北京市朝阳区2023九年级综合练习(初三英语一模)参考答案

北京市朝阳区九年级综合练习(一)英语试卷参考答案及评分标准2023.4第一部分一、单项填空(每题0. 5分, 共6分)1. D2. A3. B4. A5. A6. B7. C8. D9. D 10. C 11. C 12. B二、完形填空(每题1分, 共8分)13. A 14. C 15. D 16. A 17. D 18. B 19. C 20. B三、阅读理解(每题2分, 共26分)(A) 21. C 22. D 23. B(B) 24. D 25. B 26. C(C) 27. A 28. C 29. A(D) 30. B 31. A 32. B 33. A第二部分四、阅读表达(34-36题, 每题2分, 37题4分, 共10分)34. The Internet.35. Anyone with an online account.36. 3. / Three.37. ①It is useful / helpful / important...②能够与第一问中的观点自洽即可。

五、文段表达(10分)38. 参考范文:题目①Dear Martin,I’m glad to know that you’re coming to visit Beijing. As the capital city of China, Beijing has a large number of ancient and modern landmarks for you to travel around. Let me share one with you and I think you must love it when you travel in Beijing.Beijing National Stadium, the Bird’s Nest, is located in the Olympic Park. It’s one of the most impressive buildings to host the 2008 Summer Olympic Games. The Bird’s Nest has become a place to hold important sport events such as football. Being the best-loved public space in Beijing, it plays a necessary role in Chinese Olympic history. That’s why I think it can be a lan dmark in Beijing.I hope the above is helpful. Please feel free to ask me if you have any questions. Yours,Li Hua题目②Everyone is special. So am I. What I like about myself is mainly about my healthy life habit as well as good character. For example, I never stay up late so that I can listen attentively in class. Besides, jogging for half an hour every day helps me keep in excellent condition. Finally, it’s my character that enables me to l ive happily. Being an outgoing girl, I can get on well with others.What I own has brought me lots of benefits and I will keep on working hard to perfect myself.评分标准一、选择题答错或不答均不给分。

人教版九年级语文上册综合性学习练习题及答案(全册12页)

人教版九年级语文上册综合性学习练习题及答案(全册12页)

人教版九年级语文上册综合性学习练习题及答案(全册12页)九年级语文上册综合性学习练习题一、雨的诉说1、雨“走的很轻”,并且“温声细语”的,如杜甫笔下的“ 。

”般亲柔温和,甚至连“风也不拥挤”,真是“ ,吹面不寒杨柳风。

”2、写出两个含“雨”的成语:3、写出与雨有关的谚语或俗语一个:写出与雨有关的诗文一句:4、雨说“我是大海的叹息,是天空的泪水翘镆暗奈⑿Α薄#?)仿写:(2)你知道吗?很多事情都要从多角度去考虑,请你谈谈雨给人类,给社会带来了一些什么?5、班上要编辑一本“雨的诉说”的文学作品集,需要一段优美流畅的导入语,下面的这段导入语不够完整,请在横线上填入恰当的诗句或词语。

提起雨,我们心中无不涌起一份感动。

春天的“ ”;夏天的雨“风声撼山翻怒涛,雨点飞空射强弩。

”;江南的雨多情,塞北的雨;诗中的雨,画中的。

雨有时,有时暴怒如猛狮。

6、补写下句:(1)王母娘娘伸手——(2)屋漏偏逢(3)雨浇泥菩萨——(4)蜘蛛收网天将雨,7、雨是一种自然现象。

久雨不晴,人们管它叫“ ”;久旱而雨,人们管它叫“ ”。

它或为丝且小雨,温柔连绵;或为滂沱大雨,。

“两三点雨山前”,勾勒了雨的零落稀疏;“ ”描绘了雨的温柔润泽;“清明时节雨纷纷”,描写了雨的;“白雨跳珠乱入船”,表现了雨的欢快活泼;“夜阑卧听风吹雨”,传达了雨的;“身世浮沉雨打萍”,慨叹了雨的肆虐无情……翻开诗文卷著,处处看得雨景,听得雨声,品得雨味,赏祥雨情。

雨,不就是一首首纯情的诗吗?答案:1、随风潜入夜,润物细无声沾衣欲湿杏花雨 2、暴风骤雨雨后春笋3、屋漏又遭连夜雨。

(俗语)一场秋雨一场寒,十场秋雨穿上棉。

(谚语)山河破碎风飘絮,身世浮尘雨打萍。

”(南宋文天祥《过零丁洋》)4、(1)答案示例:雪说“我是冬天的问询秋天的思念春天的喜信”。

风说“我是高山的呼唤四季的书信大地的叮咛”。

(2)答案示例:作者用“大海的叹息”,“天空的泪水”,“田野的微笑”来再一次写出了雨的生命。

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