九年级学业考试模拟题一
房山区2023年九年级学业水平考试第一次统练数学答案及评分标准
房山区2023年初中学业水平考试模拟测试(一)九年级数学参考答案一、选择题(共16分,每题2分)二、填空题(共16分,每题2分)9.x≥5 10.a (x -1) 2 11.a+b 12.<13.2914.答案不唯一,ac=4即可 15.李波 16. 5,14三、解答题(共68分,第17-20题,每题5分,第21题6分,第22题5分,第23-24题,每题6分,第25题5分,第26题6分,第27-28题,每题7分)17.()04sin 6043--++π-………………………………4分………………………………5分18. 解①得:x <3 ………………………………2分解②得:x >2………………………………4分∴不等式组的解集是2<x <3 ………………………………5分19. 解: ………………………………2分………………………………3分………………………………4分………………………………5分441413=-++=-+=-982962)3()2(2222a a a a a a a a a 222430,43286=6+9=15a a a a a a +-=∴+=∴+=∴原式20. 方法一:证明:∵AD 平分∠BAC∴∠BAD =∠CAD , ………………………………1分 在△BAD 与△CAD 中, ===AB ACBAD CAD AD AD ⎧⎪∠∠⎨⎪⎩∴△BAD ≌△CAD ………………………………3分 ∴BD =CD ,∠BDA =∠CDA , ………………………………4分 ∵∠BDA+∠CDA=180°,∴∠BDA =∠CDA=90°∴AD ⊥BC ………………………………5分 方法二:证明:∵点D 为BC 中点,∴BD =CD , ………………………………1分 在△BAD 与△CAD 中, ===AB AC AD AD BD CD ⎧⎪⎨⎪⎩,,∴△BAD ≌△CAD ………………………………3分 ∴∠BAD =∠CAD ,∠BDA =∠CDA , ……………………4分又∵∠BDA+∠CDA=180°, ∴∠BDA =∠CDA=90°∴AD ⊥BC ………………………………5分 方法三:证明:∵AB=AC∴∠B =∠C ………………………………1分 ∵AD ⊥BC ,∴∠BDA =∠CDA=90° ………………………………2分 在△BAD 与△CAD 中,DCBAD CB AABCD===AB AC AD AD BD CD ⎧⎪⎨⎪⎩,, ∴△BAD ≌△CAD ………………………………4分 ∴BD =CD ,∠BAD =∠CAD . ………………………………5分(其它证法酌情给分)21.(1) 证明:∵ ABCD 中,对角线AC 、BD 交于点O ,∴OA =OC , ………………………………1分 又∵OE=OF=OA ,∴四边形AECF 是平行四边形, ……………………2分 ∵ OE=OF=OA=OC , ∴OE+OF=OA+OC , 即AC =EF ,∴ AECF 是矩形. ………………………………3分(2)证明:∵四边形AECF 是矩形且AE=AF ,∴四边形AECF 是正方形, …………………………4分 ∴AC ⊥EF ,∴ ABCD 是菱形, …………………………5分 ∴AC 平分∠BAD . …………………………6分(其它证法酌情给分)22.(1)解:∵点A (1,a )在直线y = kx+ 3k (k >0)上,∴a = k +3k =3 ………………………………1分即a 值为3∵直线y = x + m 经过点B (2,3),∴2+m =3,∴m =1. ………………………………2分 ∴直线2l 的表达式为y = x + 1 . ……………………3分 (2)k 的取值范围为1≤k ≤23. ………………………………5分23.(1)证明:连接AO , ……………………1分∵AB =AC ,点O 为直径BC 中点,∴AO ⊥BC ,∠BAC =2∠OAC , ……………………2分 ∴∠OAC +∠ACO =90°, ∵BC 为⊙O 直径,点D 在⊙O 上, ∴∠BDC =90°, ∴∠DBC +∠ACO =90°, ∴∠DBC =∠OAC ,∴∠BAC =2∠DBC ; ……………………3分(2)解:连接OD , ……………………4分 ∴∠DOE =2∠DBC , 又∵∠BAC =2∠DBC ,∴∠BAC=∠DOE , ……………………5分∴cos ∠DOE = cos ∠BAC =53,∵DE 切⊙O 于点D , ∴∠ODE =90°, 在Rt △ODE 中,cos ∠DOE =OD OE =53,∴设OD =3x ,OE =5x , ∴由勾股定理可得,DE =4x , ∵DE =4, ∴4x =4, ∴x =1,∴OE =5,OD =3,∴OB =OD =3,∴BE =OB +OE =3+5=8. ……………………6分 (其它解法酌情给分)24. (1)74 ……………………2分(2)甲校 ……………………4分 (3)答案不唯一 ……………………6分25. (1)“门高”: 7.2 m ……………………1分设函数表达式2(6)7.2y a x =-+ (a <0) ……………………2分 将点(12,0)代入得:367.20a +=,解得0.2a =-,故拱门上的点满足的函数关系为:20.267.2y x =--+(). …………………3分(2) > ……………………5分26.(1)把(1,1)代入表达式得,112a b =-+,∴a b 2= ……………………1分 抛物线为22222()2y x ax a x a a a =-+=--+抛物线顶点坐标为2(,2)a a a -+ ……………………2分(2)∵抛物线关于x =a 对称,开口向上,∴当1-a ≤x ≤2+a 时,由对称性得,x =2+a 时函数y 有最大值: y 最大=(a+2-a )2-a 2+2a=-a 2+2a+4. ……………………3分 ∵对于任意1-a ≤x ≤2+a ,都有y ≤1,∴-a 2+2a+4≤1 ……………………4分 即a 2-2a -3≥0∴ a ≤-1或a ≥3 ……………………6分 (其它解法酌情给分)27.(1)补完图形如下:……………………1分∠ADG =∠CDG . ……………………2分证明:如图,连接AG 、CG∵∠EAF =90° ,点G 是EF 中点,∴AG =12EF∵正方形ABCD ,∠ECF =90° ,∴CG =12EF∴AG =CG ……………………3分 ∵AD =CD ,DG =DG ∴△ADG ≌△CDG∴∠CDG =∠ADG ……………………4分 (2)BC =3BE ……………………5分过点G 作GH ⊥CD 于点H , 易证GH 是△CEF 的中位线,∴CE =2GH . ……………………6分 易证△GDH 是等腰直角三角形,∴DG .又∵DG DF ,∴DF =GH . 易证△ADF ≌△ABE ∴DF =BE , ∴BE =GH . ∵CE =2GH , ∴CE =2BE∴BC =3BE ……………………7分 (其它证法酌情给分)28.(1)①(-2,1); ……………………2分②存在.设点B 坐标为(x ,x -1),则它向右平移1个单位,再向下平移1个单位 的点坐标为B'(x +1,x -2),B'关于y 轴对称点坐标为(-x -1,x -2) ……………3分 代入y = x -1得x -2 =-x -1-1,x = 0; ……………………4分 ∴点B 坐标为(0,-1). ……………………5分(2)-12 ≤t ≤12 ……………………7分。
山东省潍坊市2020-2021学年九年级下学期4月一模语文试题
2021年潍坊市初中学业水平模拟考试(一)语文试题2021.04注意事项:1.本试题由积累与运用、阅读、写作三部分组成,总分120分。
考试时间120分钟。
2.答卷前务必将试题密封线内及答题卡上面的项目填涂清楚。
所有答案都必须涂、写在答题卡相应位置,答在本试卷上一律无效。
第一部分积累与运用(33分)一、(14分,每小题2分)阅读下面的文字,完成1-3题。
静心功夫,可从读书中来。
寂寞忧愁时读一阕《定风波》,心会变得豁达敞亮......;委曲不平时读一卷《宽容的哲学》,能收获“既忍且耐”的智慧。
身处低谷之时,从书中汲取..前行的力量,纵使“山重水复”,也终将迎来“柳暗花明”;得意之时,时常读书以自省,也才能“不忘初心,方得始终”。
端起沉甸甸的书本,走进书中的世界,浮燥..之气便能荡.涤一空...,久而久之,自然能寻得“此心安处”。
古人云:“人心多从动处失真。
若一念不生,澄.然静坐,云兴而,雨滴而,鸟啼而,花落而。
何地无真境,何物无真机。
”涵养..,多一些从...几分静气,绝非暮气沉沉,而是多一些沉潜..、少一些浮燥容不迫..豁达,挺过如磐风雨....,...、少一些进退失据。
“静心”的功夫,助人眼界开阔,胸襟包容万千气象,寻得生命真缔..。
1.下列词语字形和加点字的注音,全部正确....的一项是A.沉潜.(qián)汲取豁达敞亮B.澄.然(dèng)浮燥荡涤一空C.涵.养(hán)委曲从容不迫D.胸襟.(jīn)真缔如磬风雨2.下列词语依次填入文中横线处,最恰当...的一组是①潇然自得②悠然共逝③欣然有会④冷然俱清A.②③①④B.②④③①C.③④②①D.③④①②3.下列选项中判断有误..的一项是A.涵养几分静气,绝非暮气沉沉,而是多一些沉潜。
(句中“涵养”是动词)B.寂寞忧愁、得意之时、不忘初心、眼界开阔(四个短语类型各不相同)C.静心功夫,可从读书中来。
(句中“静心功夫”是主语)D.纵使“山重水复”,也终将迎来“柳暗花明”。
2024年济南章丘区九年级中考英语一模考试试题(含答案)
济南市章丘区2024年初中学业水平考试英语模拟试题(一)注意事项:1.本试题分第1卷和第II卷两部分。
第I卷为选择题(100分);第II 卷为非选择题(50分);全卷满分150分。
考试时间为120分钟。
2.请将第I卷、第II卷两部分答案填写在答题卡上,填在试卷或其它位置不得分。
第I 卷选择题答案用2B铅笔涂写。
第II卷必须使用0.5毫米黑色签字笔在答题卡上题号所提示的答题区域作答。
选择题部分共100分I.听力测试(30分)A)听录音,在每组句子中选出一个你所听到的句子。
每个句子听一遍。
(7.5分)1.A.Jack is tall and thin . B.I watched a movie last night . C.Bob likes to eat hamburgers .2.A.Is she allowed to leave ? B.Do you believe that ? C.Have you ever been here ?3.A.How is everything going ? B.What do you think of the film ? C.What does she look like ?4.A.Judy can’t go camping . B.Susan doesn’t stay up late . C.Nancy didn’t know the truth .5.A.Let me help you ! B.Wish you good luck ! C.Have a good day !B)在录音中,你将听到五段对话,每段对话后有一个小题,从每小题A、B、C中选出能回答所给问题的正确答案。
每段对话听两遍。
(7.5分)6.What kind of food did Danny try during the trip ?A.Chinese food .B.Indian food .C.Russian food .7.What hobby does the man have ?A.Collecting coins .B.Collecting stones .C.Collecting telephone cards .8.How often does Jane exercise ?A.Once a week .B.Twice a week .C.Three times a week .9.What does Bill want to be when he grows up ?A.A teacher .B.A doctor .C.An artist .10.How much will the woman pay for the socks ?A.5 dollars .B.10 dollars .C.2 dollars .C)在录音中,你将听到一段对话,对话后有五个小题,从每小题A、B、C中选出能回答所给问题的正确答案。
2024年浙江省嘉兴市初中学业水平考试数学模拟试题
2024年浙江省嘉兴市初中学业水平考试数学模拟试题一、单选题1.某校九年1班期末考试数学的平均成绩是82分,小明得了90分,记作8+分,若小亮的成绩记作4-分,表示小亮得了( )分 A .16B .76C .78D .742.如图是由5个相同的小正方体组成的几何体,该几何体从左面看得到的平面图形是( )A .B .C .D .3.下列运算结果正确的是( )A .2=B .34a a a +=C .222()ab a b =D .632a a a ÷=4.若关于x 的不等式组的解表示在数轴上如图所示.则这个不等式组的解集是( )A .1x ≤B .1x >C .01x ≤<D .01x <≤5.如图,90C ∠=︒,将直角三角形ABC 沿着射线BC 方向平移5cm ,得到三角形A B C ''',并且3cm B C ''=,4cm A C ''=则阴影部分的面积为( )A . 210cmB . 214cmC . 228cmD . 235cm6.为庆祝中国共产主义青年团成立100周年,某区举办了团课知识竞赛,甲、乙学各派5名学生参加,两队学生的竞赛成绩如图所示,下列关系完全正确的是( )A .22S S x x <=甲乙甲乙, B .22S S x x =>甲乙甲乙 ,C .22S S x x >=甲乙甲乙, D .22S S x x =<甲乙甲乙,7.“践行垃圾分类・助力双碳目标”主题班会结束后,米乐和琪琪一起收集了一些废电池,米乐说:“我比你多收集了7节废电池”琪琪说:“如果你给我8节废电池,我的废电池数量就是你的2倍.”如果他们说的都是真的,设米乐收集了x 节废电池,琪琪收集了y 节废电池,根据题意可列方程组为( )A .()7288x y x y -=⎧⎨-=+⎩B .782(8)x y x y -=⎧⎨-=+⎩C .72(8)x y x y -=⎧⎨-=⎩D .782(8)y x x y -=⎧⎨+=-⎩8.如图1的晾衣架中存在多组平行关系,将晾衣架的侧面抽象成如图2的数学问题,已知P P AB MN PQ ,若2100∠=︒,3130∠=︒,则1∠的度数为( )A .40︒B .50︒C .60︒D .70︒9.如图,等腰直角ABC V 位于第一象限,2AB AC ==,直角顶点A 在直线y x =上,A 点横坐标为1,两条直角边AB AC 、分别平行于x 轴、y 轴,若双曲线()0ky k x=≠与ABC V 有交点,则k 的取值范围( )A .12k <<B .13k ≤≤C .14k ≤≤D .14k ≤<10.如图,O e 的半径为4,AB 是O e 的弦,若30OAB ∠=︒,则AB 的长为 ( ).A .B .1C .2D二、填空题11.分解因式:2222m n -=.12.已知二次函数的解析式为21y x bx =++,从数字0,1,2中随机选取一个数作为b 的值,得到的二次函数图像的顶点在坐标轴上的概率是.13.一个三角形3条边长分别为cm x 、()1cm x +、()2cm x +,它的周长不超过39cm ,则x 的取值范围是.14.如图,正方形ABCD 的对角线相交于点O ,点O 又是另一个正方形A B C O '''的一个顶点.若两个正方形的边长均为2,则图中阴影部分图形的面积为.15.一根蜡烛长30厘米,点燃后匀速燃烧,经过50分钟其长度恰为原长的一半.在燃烧的过程中,如果设蜡烛的长为y (厘米),燃烧的时间为t (分钟),那么y 关于t 的函数解析式为(不写定义域).16.如图.将扇形AOB 翻折,使点A 与圆心O 重合,展开后折痕所在直线l 与»AB 交于点C ,连接AC .若3OA =,则图中阴影部分的面积是.三、解答题17.(13- (2)求x 的值:2327x =18.如图,矩形ABCD 的对角线AC ,BD 相交于点O ,过点C 作BD 的平行线交AB 的延长线于点E .(1)求证:AC CE =.(2)若120BOC ∠=︒,4CE =,求AB 的长. 19.计算(12 (220141142π-⎛⎫--+-- ⎪⎝⎭(2)找规律:观察下列一组算式的特征,并探索规律:① 11=;123=+= ;③ 1236=++=;④ 123410=+++=. 根据以上算式的规律,解答下列问题: (1)()23333312345++++==;(2;(用含n 的代数式表示) (3)简便计算:3331112...20+++20.已知小明所在学校的宿舍、食堂、图书馆依次在同一条直线上,食堂离宿舍0.6km ,图书馆离宿舍1.2km .周末,小明从宿舍出发,匀速走了10min 到食堂;在食堂停留15min 吃早餐后,匀速走了10min 到图书馆;在图书馆停留30min 借书后,匀速走了15min 返回宿舍.下面图中x 表示时间,y 表示离宿舍的距离,图象反映了这个过程中小明离宿舍的距离与时间之间的对应关系.请根据相关信息,解答下列问题: (1)①填表:②填空:小明从图书馆返回宿舍的速度为______km/min ;③当3580x ≤≤时,请直接写出小明离宿舍的距离y 关于时间x 的函数解析式.(2)当小明在图书馆停留25min 时,同宿舍的小亮也从宿舍出发匀速步行直接到图书馆,如果小亮的速度为0.08km/min ,那么他在去图书馆的途中遇到小明时离宿舍的距离是多少?(直接写出结果即可)21.如图1是某门禁自动识别系统,主要由可旋转摄像机和其下方固定的显示屏构成.图2是其示意图,已知摄像机长20cm AB =,点O 为摄像机旋转轴心,O 为AB 的中点,显示屏的上沿CD 与AB 平行,15cm CD =,AB 与CD 连接,杆OE AB ⊥,10cm OE =,2CE ED =,点C 到地面的距离为60cm .若AB 与水平地面所成的角的度数为35︒.(参考数据:sin350.574︒≈,cos350.819︒≈,tan350.700︒≈,结果精确到0.1cm )(1)求显示屏所在部分的宽度CM ; (2)求镜头A 到地面的距离.22.芜湖市已建成并开放“芜湖书屋”55家,可谓“半城山水,满城书香”.政府着力打造高品质城市阅读空间,努力做到人人享阅读,处处能阅读,时时可阅读,切实提升了城市品位和文化氛围.市区某校九年级二班调查了同学们最喜欢的“芜湖书房”情况,上榜五大书房,分别是A 、滨江书苑,B 、悦享书吧,C 、赤铸书院,D 、葵月书房,E 、占川书局,并绘制了如下两幅不完整的统计图.(1)该班共有学生______人,请把条形统计图补充完整;(2)扇形统计图中,m =______,n =______,最喜欢滨江书苑所对应的扇形圆心角为______度;(3)小鹏和小兵均选择了葵月书房,若从选择了葵月书房的学生中随机选取2人参加该书房志愿者活动,求恰好是小鹏和小兵当选葵月书房志愿者的概率,并说明理由.23.如图,在平面直角坐标系中,已知直线142y x =-+与y 轴交于点A ,与x 轴交于点B ,点C 的坐标为()2,0-.(1)求经过A ,B ,C 三点的抛物线的表达式;(2)如果M 为抛物线的顶点,连接,AM BM ,求ABM V 的面积. 24.【教材呈现】如图是人教版八年级下册第48页部分内容:如图,点D 、E 分别是ABC V 的边AB 与AC 的中点,根据画出的图形,可以猜想:DE BC ∥且12DE BC =. 对此,我们可以用演绎推理给出证明(1)请完成教材的证明; 【结论应用】(2)如图1,在四边形ABCD 中,AD BC =,P 是对角线BD 的中点,M 是DC 的中点,N 是AB 的中点.请判断PMN V 的形状,并说明理由.(3)如图2,四边形ABCD 中,AD BC =,M 是DC 中点,N 是AB 中点,连接NM ,延长BC 、NM 交于点E .若234D DCB ∠+∠=︒,求E ∠的度数.。
2024北京房山区初三一模道法试题及答案
房山区2024年初中学业水平考试模拟测试(一)参考答案九年级道德与法治第一部分选择题(每小题2分,共30分)在下列各题的四个选项中,只有一项是最符合题意的。
第二部分非选择题(共 40 分)16.(4分)可从学习、梦想、自强、友谊角度作答。
答案示例:教师寄语启示我们要树立梦想,从小立志,不断克服自己的弱点、战胜自己、超越自我、自强不息;父母寄语启示我们要树立终身学习的理念,在实践中学习;朋友寄语说明友谊是双向的、平等的,是一种心灵的相遇,我们要呵护友谊。
(共4分,每个要点2分。
每个要点结合材料1分,综合说明、得出结论1分。
)17.(6分)可从创新、社会主义核心价值观、劳动、平凡与伟大、民族精神等角度作答。
答案示例:张帅坤和团队团结协作,打破国外技术垄断,发挥创新精神,坚持走中国特色自主创新道路,他发挥实干精神和工匠精神,以精益求精的态度奋斗在一线,弘扬了中华民族的传统美德,践行了爱国、敬业的社会主义核心价值观,在奉献和服务社会中书写生命的价值,在平凡的岗位中闪耀出伟大,是我们学习的榜样。
(共6分,每个要点2分。
每个要点结合材料1分,综合说明、得出结论1分。
)18.(11分)(1)可从坚持党的领导、人民当家作主、依法治国有机统一、人民当家作主、科学立法等角度作答。
答案示例:征求人民的意见,体现了我国宪法是党的主张和人民意志的统一。
(2分)制定过程体现了坚持党的领导、人民当家作主、依法治国有机统一。
(2分)中国共产党领导人民制定宪法。
(2分)我国是人民当家作主的社会主义国家,法治建立在民主基础上,有利于科学决策,实现公共利益最大化。
(2分)人大具有立法权等。
(2分)(共4分,每个要点2分。
每个要点结合材料1分,综合说明、得出结论1分。
)(2)可从宪法的地位、宪法意识等角度作答。
答案示例:宪法是我国的根本法,是治国安邦的总章程,具有最高的法律效力、法律地位、法律权威。
(2分)宪法的核心价值追求是规范国家权力运行以保障公民权利,国家工作人员就职时公开向宪法宣誓有利于规范国家工作人员依法履职,带头尊法学法守法用法,维护宪法权威,增强宪法意识。
2024年辽宁省沈阳市九年级学业水平考试模拟数学试题
2024年辽宁省沈阳市九年级学业水平考试模拟数学试题一、单选题1.如图,比数轴上的点A 表示的数大1的数是( )A .1-B .0C .1D .22.如图是一个由6个相同的小立方块组成的几何体,它的主视图是( )A .B .C .D .3.下列四个图形中,对称轴最多的图形是( )A .B .C .D . 4.下列运算中,正确的是( )A .3232a a a -=B .()222a b a b +=+C .3222a b a ab ÷=D .()224a b a b = 5.下列命题正确的是( )A .平行四边形的对角线相等B .对角线相等的四边形是平行四边形C .平行四边形的对角互补D .对角线互相平分的四边形是平行四边形6.化简11a a a -+的结果是( )A .0B .1C .aD .2a -7.若关于x 的方程260x x c ++=有两个相等的实数根,则c 的值是( )A .36B .36-C .9D .9-8.《九章算术》是中国传统数学最重要的著作之一,书中记载:“今有人共买兔,人出九,盈六;人出七.不足十四.问人数几何?”意思是:“有若干人共同出钱买兔,如果每人出九钱,那么多了六钱;如果每人出七钱,那么少了十四钱,问:共有几个人?”设共有x 个人共同出钱买兔,根据题意,可列一元一次方程为()A .96714x x +=-B .96714x x -=+C .96714x x -=-D .96714x x +=+ 9.如图,C 岛在A 岛的北偏东50︒方向,C 岛在B 岛的北偏西35︒方向,则ACB ∠的度数是( )A .90︒B .85︒C .80︒D .75︒10.如图,在ABC V 中,60BAC ∠=︒,5AB =,点D 在AB 边上,2AD AC ==,连接CD ,在DC DB ,上截取DE DF ,,使DE DF =,分别以点E ,F 为圆心,大于12EF 长为半径画弧,两弧交于点G ,作射线DG ,交BC 边于点H ,则DH 的长为( )A .2B .65C .1D .23二、填空题11.不等式组12x x >-⎧⎨>⎩的解集为. 12.将点()1,3A -沿x 轴向右平移2个单位,平移后的点恰好在反比例函数()0k y k x=≠的图象上,则常数k 的值为.13.如图,某一时刻停车场内有序号为123,,的三个空车位顺次排成一排,现有甲、乙两车需要随机停放到其中一个车位,则甲、乙两车停放在不相邻的位置的概率是.14.如图,在平面直角坐标系中,二次函数2y ax bx c =++的图象与x 轴的一个交点坐标是()30-,,对称轴为直线=1x -,则这个二次函数图象与x 轴另一个交点的坐标是.15.如图,在菱形ABCD 中,160∠=︒,AB ABC , 点1P 为直线BC 上方一点,且115PBC ∠=︒,分别作点1P 关于直线AB 和直线AD 的对称点2P ,3P,连接23P P 当23P P 与菱形ABCD 的边平行时,123PP P V 的面积为.三、解答题16.计算 (1)231139⎛⎫--⨯- ⎪⎝⎭; (2)()()()2122x x x +++-.17.某汽车租赁公司决定采购A 型和B 型两款新能源汽车.已知每辆A 型汽车的进价是每辆B 型汽车的进价的1.2倍,若用240万元购进A 型汽车的数量比用240万元购进B 型汽车的数量少4辆,求每辆A 型汽车和每辆B 型汽车的进价分别为多少万元.18.从“冬日雪暖阳”到“春天花正开”,沈阳魅力更加迷人.相关数据显示,五一小长假期间,南方“小土豆”到沈阳旅游的人数大幅增加.乐乐一家计划暑假来沈阳游玩,为了更好的了解沈阳的景点,乐乐对网友进行了线上调查,想根据调查的数据制定自己一家人的沈阳游玩计划,调查的过程及不完整的统计结果如下表.调查结果 请回答下列问题:(1)本次线上调查共有多少名网友参与?(2)根据上表的调查结果,若有9000名网友参与调查,请你估计最喜爱“沈阳故宫”的人数;(3)若返程当天还有景点F ,景点G ,景点H 可以去游玩,各景点建议游玩时间和景点间路程用时情况见下图.乐乐一家人打算上午900:到达第一个景点开始游玩,下午1830:坐飞机回家,需要最晚在下午1640:到达机场,如果按图中景点建议游玩时间选择两个景点游玩,请你帮助乐乐设计一个游玩路线.先游玩__________,再游玩__________,然后16:40前到达机场.19.某超市的消费卡做促销活动.消费卡售价y(元)与面值x(元)之间满足一次函数关系,其图象经过原点和点A,如图所示,小张购买了该超市的一张面值是1000元的消费卡.使用这张消费卡,在该超市可以购买任意商品.(1)求小张购买这张消费卡实际花费的钱数为多少元;(2)小张使用这张消费卡在该超市购买了某种大米20公斤,超市规定这种大米使用消费卡购买,每公斤在原价的基础上还可以优惠0.4元.设小张购买的大米原价为m元/公斤,小张购买的20公斤大米实际花费的钱数为w元,求w与m的函数关系式.20.某校“综合与实践”活动小组的同学要测量与地面垂直的两栋楼CD与AB的高度之差,他们借助无人机设计了如下测量方案:如图,无人机悬停在AB,CD两楼之间上方的点O 处,此时测出到楼AB顶部点A处的俯角为60︒,40mOA=,测出到楼CD顶部点C处的俯BD=(点A,B,C,D,O在同一平面内).角为53︒,已知两栋楼之间的距离30m(1)求点O 到楼AB 的距离OE 的长;(2)求两栋楼CD 与AB 的高度之差.(结果精确到1m )1.73≈,sin530.80︒≈,cos530.60︒≈,tan53 1.33︒≈)21.如图,AB 与O e 相切于点B ,AO 交O e 于点F ,延长AO 交O e 于点C ,连接BC ,点D 为O e 上一点,且»»DFBF =,连接AD .(1)求证:AD 是O e 的切线;(2)若6AB =,8AC =,求O e 的半径的长.22.【问题初探】(1)在数学活动课上,张老师给出如下问题:如图1,在ABC V 中,AB BC =,90ABC ∠=︒,点D 是边BC 上一点,连接AD ,在AB 右侧作ADE V ,使D E A D=,90ADE ∠=︒,连接CE ,求证:135DCE ∠=︒; ①小创同学从ABC V 与ADE V 均为等腰直角三角形这个条件出发给出如下解题思路:通过证明ABD ACE V V ∽,将DCE ∠转化为ABD ACB ∠+∠;②小新同学从结论的角度出发给出另一种解题思路:如图2,在线段AB 上截取BP BD =,连接DP ,通过证明APD DCE V V ≌,将DCE ∠转化为APD ∠;请你选择一名同学的解题思路,写出证明过程.【类比分析】(2)张老师发现之前两名同学都运用了转化思想,为了帮助学生更好地感悟转化思想,张老师将图1进行变换并提出了下面问题,请你解答.如图3,在ABC V 中,AB BC =,点D 是边BC 上一点,连接AD ,在AB 右侧作ADE V ,使DE AD =,()90ADE ABC αα∠=∠=>︒,连接CE ,过点C 作CF AB ∥交AE 于点F ,探究ECF ∠与α的数量关系;(3)如图4,在(2)的条件下,当120α=︒时,若AB BC ==CF =CD 的长.23.【问题情境】如图1,正方形ABCD ,点E 是边AB 上一动点,点E 由点A 运动到点B ,动点F 在边AD 上,且DF AE =,连接EF ,以EF 为一边,在正方形ABCD 内部作等边EFG V ,连接GB .设AE 的长为x ,AEP △的面积为S .【初步感知】(1)经探究发现S 是关于x 的二次函数,并绘制成如图2所示的图象,其顶点坐标是()2,2、请根据图象信息,求S 关于x 的函数表达式;【延伸探究】(2)当EFG V 的周长为 AE 的长度:(3)当BEG V 是以BE 为底的等腰三角形时,①小智同学根据学习函数的经验,想尝试结合函数相关知识求线段AE 的长度.根据点E 在AB 上的不同位置.通过画图软件画出相应的图形,并测量线段EG ,BG 的长度(同一单位),得到下表的几组对应的近似值:将线段AE 的长度作为自变量x ,EG 和BG 的长度分别为1y ,2y ,发现1y ,2y 都是x 的函数,在平面直角坐标系xOy 中画出这两个函数的图象,如图3所示.请结合表格和图象信息,当BEG V 是以BE 为底的等腰三角形时,直接..写出线段AE 的长度:(结果精确到0.1) ②因为①的方法得到的是线段AE 长度的近似值,所以小慧同学还想求出线段AE 长度的准确值,请你帮助小慧同学求出线段AE 长度的准确值.。
2022年3月济南市某校初三年级学业水平第一次模拟考试试题(含答案)
2022年九年级学业水平第一次模拟考试数学试题(LX 2022.3)本试题共8页,满分为150分,考试时间为120分钟。
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注意事项:1.答选择题时,必须使用2B铅笔填涂答题卡上相应题目的答案标号,修改时,要用橡皮擦干净。
2.答非选择题时,必须使用0.5毫米黑色签字笔书写,要求笔迹清晰、字体工整,务必在答题卡题号所指示的答题区域内作答。
第I卷(选择题共48分)一、选择题(本大题共12个小题,每小题4题,共48分.在每小题给出的四个选项中,只有一项是符合题目要求的.)1.9的相反数是()A.9B.9-C.19D.19-2.第七次人口普查显示,济南市历下区常住人口约为820000人,将数据820000用科学记数法表示为()A.48.210⨯B.48210⨯C.58.210⨯D.60.8210⨯3.如图是由8个相同的小正方体组成的几何体,其主视图是()A.B.C.D.4.如图,AB∥CD,且被直线l所截,若∠1=54°,则∠2的度数是()A.154°B.126°C.116°D.54°5.2022年冬奥会在北京举行,以下历届冬奥会会徽是轴对称图形的是()A.B.C.D.6.下列运算正确的是()A .326(2)4a a -=B .236a a a ⋅=C .2333a a a +=D .222()a b a b -=-7.△ABC 的顶点分别位于正方形网格的格点上,建立如图所示的平面直角坐标系,已知点C (﹣1,1),将△ABC 先沿x 轴方向向右平移3个单位长度,再沿y 轴方向向下平移2个单位长度,得到△A’B’C’,则点A 的对应点的坐标是( )A .(﹣6,6)B .(0,2)C .(0,6)D .(﹣6,2)8.一个不透明袋子中装有红球两个,绿球一个,除颜色外无其它差别,随机摸出一个小球后,放回并摇匀,再随机摸出一个小球,则第一次摸到红球,第二次摸到绿球的概率是( ) A .14B .13C .19D .299.当0≠a 时,函数1=+y ax 与函数ay x=在同一坐标系中的图象可能是( ) A . B .C .D .10.如图,甲、乙两楼的距离AC =30m ,甲楼高AB =20m ,自甲楼楼顶的B 处看乙楼楼顶的D 处,仰角为28°,则乙楼的高CD 为( )m .(结果精确到1m ,参考数据:sin28°≈0.47,cos28°≈0.88,tan28°≈0.53) A .34B .36C .46D .5611=BC=8,∠C=90°,以长为半径作圆弧交AB于E ,连接CE ,再分别以C 、E 为圆心,大于12CE 的长度为半径作弧,两弧交于点P ,作射线AP 交BC 与点D ,连接DE ,则下列说法中错误的是( ) A .DE CD B .BDE BAC △∽△ C . AB AC DE D .24=BD12.已知抛物线P :243(0)yx ax a ,将抛物线P 绕原点旋转180°得到抛物线'P ,当13x ≤≤时,在抛物线P '上任取一点M ,设点M 的纵坐标为t ,若3t ≤,则a 的取值范围是( ) A .104a <≤B .430≤<aC .4341<≤aD .43≥a第Ⅱ卷(非选择题 共102分)二、填空题(本大题共6个小题,每小题4分,共24分.) 13.因式分解:24x -= .14.如图,飞镖游戏板由大小相等的小正方形格子构成,小东向游戏板随机投掷一枚飞镖,击中黑色区域的概率是 . 15.使分式21x 与33x 的值相等的x 的值为 .16.如图是中国古代建筑中的一个正六边形的窗户,则它的内角和为 度. 17.A 、B 两地相距80km ,甲、乙两人沿同一条路从A 地到B 地.1l ,2l 分别表示甲、乙两人离开A 地的距离()s m 与时间()t h 之同的关系.当甲车出发1小时时,两车相距 km .18.如图,将矩形ABCD 对折,使点A 点与D 重合,点B 与C 重合,折痕为EF ;展开后再次折叠,使点A 与点D 重合于EF 上的点P 处,折痕分别为BM 、CN ,若AB =10, BC =16,则=∠PCN tan .第14题图第16题图三、解答题(本大题共919.(本小题满分6分)计算:011|3|(2020)2sin30()3π--+--︒+.20.(本小题满分6分)求不等式组2(1)33122x x x +>⎧⎪⎨-≥-⎪⎩的解集,并写出它的整数解.21.(本小题满分6分)如图,四边形ABCD 是平行四边形,E 、F 是对角线AC 的三等分点,连接BE 、DF . 求证:BE DF =.22.(本小题满分8分)2021年12月9日,神舟十三号乘组三位航天员首次在中国空间站进行太空授课,传播载人航天知识.某校为了了解本校学生对航天科技的关注程度,从七、八年级各随机抽取了10名学生进行科普知识竞赛(百分制),测试成绩整理、描述和分析如下:(成绩得分用x 表示,共分成四组:A .80≤x <85;B .85≤x <90;C .90≤x <95;D.95≤x ≤100其中,七年级10名学生的成绩是:96,80,96,86,99,96,90,100,89,82.NM PF E DCBA 第18题图第17题图八年级10名学生的成绩在C组中的数据是:94,90,92.七、八年级抽取的学生竞赛成绩统计表年级平均数中位数众数方差七年级9293b52八年级92c10050.4根据以上信息,解答下列问题:(1)这次比赛中年级成绩更稳定;(2)直接写出上述a、b、c的值:a=,b=,c=;(3)该校八年级共1000人参加了此次科普知识竞赛活动,估计参加此次活动成绩优秀(x ≥90)的八年级学生人数是多少?23.(本小题满分8分)如图,AB是⊙O的直径,点F是AB上方半圆上的一点(F不与A、B重合),DE是⊙O的切线,DE⊥AF交射线AF于点E.(1)求证:AD平分∠BAF;(2)若AE=4,AB=5,求AD长.24.(本小题满分10分)某商场计划购进A、B两种新型台灯共80盏,它们的进价与售价如表所示:类型价格进价(元/盏)售价(元/盏)A型3045B型5070(1)若商场预计进货款为2900元,则这两种台灯各购进多少盏?(2)将两种台灯全部售出,若总利润不低于1500元,则该商场需要至少购进多少盏A型台灯?25.(本小题满分10分)如图1,点A(1,a)、点B(0,1)在直线y=2x+b上,反比例函数()0ky xx=>的图象经过点A.(1)求a和k的值;(2)将线段AB向右平移m个单位长度(m>0),得到对应线段CD,连接AC、BD.①如图2,当点D恰好落在反比例函数图象上时,过点C作CF⊥x轴于点F,交反比例函数图象于点E,求线段CE的长度;②在线段AB运动过程中,连接AD,若△ACD是直角三角形,求所有满足条件的m值.图1 图2 备用图26.(本小题满分12分)如图,在ABC∆中,AB=AC,E是线段BC上一动点(不与B、C重合),连接AE,将线段AE绕点A逆时针旋转与BAC∠相等的角度,得到线段AF,连接EF.点M和点N分别是边BC,EF的中点.【问题发现】26题图1 26题图2 26题图3(1)如图1,若=60BAC∠︒,当点E是BC边的中点时,MNBE=,直线BE与MN相交所成的锐角..的度数为度.【解决问题】(2)如图2,若=60BAC∠︒,当点E是BC边上任意一点时(不与B、C重合),上述两个结论是否成立?若成立,请写出证明过程;若不成立,请说明理由.【拓展探究】(3)如图3,若=90BAC∠︒,AB=6,13CG CB=,在E点运动的过程中,直接写出GN的最小值.27.(本小题满分12分)如图1,抛物线y=ax2+bx+3过A(1,0)、B(3,0)两点,交y轴于点C.(1)求抛物线的函数解析式;(2)在抛物线的对称轴上是否存在点M,使△ACM的周长最小?若存在,求出△ACM周长的最小值;若不存在,请说明理由.(3)如图2,连接BC,抛物线上是否存在一点P,使得∠BCP=∠ACB?若存在,求出点P 的坐标;若不存在,请说明理由.27题图1 27题图22022年九年级学业水平第一次模拟考试数学试题答案一.选择题(共12小题,满分48分,每小题4分)13.(x+2)(x−2)14.1315.916.72017.40318.12三.解答题(本大题共8个小题,共78分.请写出文字说明、证明过程或演算步骤)19.(本小题6分)解:|−3|+(π−2020)0−2sin30°+(13)−1=3+1−2×12+3…………………………………………………… 3分=6……………………………………………………………………… 6分20.(本小题6分)解:{2(x+1)>3x ①3x−12≥−2 ②由①得:x<2……………………………………………………… 2分由②得:x≥−1……………………………………………………… 4分∴原不等式组的解集为−1≤x<2…………………………………… 5分∴整数解为−1,0,1………………………………………………… 6分21.(本小题6分)解:∵四边形ABCD是平行四边形∴AB=CD,AB∥CD………………………………………………… 2分∴∠BAC=∠DCA…………………………………………………… 3分∵E、F是对角线AC的三等分点∴AE=CF=13AC…………………………………………………… 4分在∆ABE和∆CDF中∵{AB=CD∠BAC=∠DCAAE=CF∴∆ABE≅∆CDF(SAS)……………………………………………… 5分∴BE=DF…………………………………………………………… 6分22.(本小题8分)解:(1)∵七年级成绩的方差为52,八年级成绩的方差为50.4,∴八年级成绩的方差小于七年级成绩的方差,∴八年级成绩更平衡,更稳定;故答案为:八;…………………………………………………………………… 2分(2)∵八年级学生成绩落在C组人数所占百分比为3÷10×100%=30%,∴a%=1﹣(20%+10%+30%)=40%,即a=40;将七年级成绩出现最多的是96,所以其众数b=96,八年级A、B组人数共有10×(10%+20%)=3(人),∴八年级成绩的第5、6个数据分别为92、94,所以八年级成绩的中位数c==93,故答案为:40、96、93;………………………………………………………… 5分(3)估计参加此次知识竞赛活动成绩优秀(x≥90)的八年级学生人数是1000×(1﹣20%﹣10%)=700(人).…………………………………………………………… 8分23.(本题8分)(1)证明:如图,连接OD,∵DE与⊙O相切于点D,∴DE⊥OD,∴∠ODE=90°,………………………………………………… 1分∵DE⊥AF∴OD∥AF,∴∠ODA=∠DAF,…………………………………………… 2分∵OD=OA,∴∠ODA=∠OAD,…………………………………………… 3分∴∠OAD=∠DAF∴AD平分∠BAF,……………………………………………… 4分(2)如图,连接BD,∵AB是⊙O的直径,∴∠ADB=90°,………………………………………………… 5分∴∠AED=∠ADB,∵∠EAD=∠DAB,∴△AED∽△ADB,…………………………………………… 6分∴AEAD =ADAB,…………………………………………………… 7分∵AE=4,AB=5,∴AD===………………………… 8分24.(本题10分)解:(1)设购进A型台灯x盏,B型台灯y盏………………………… 1分根据题意,得:{x+y=8030x+50y=2900……………………………………… 3分解得{x=55y=25………………………………………………………………… 5分答:购进A型台灯55盏,B型台灯25盏。
2024年山东省济南市历下区中考一模化学试题(含答案)
2024年九年级学业水平第一次模拟考试化学试题(LX2024.3)注意事项:1.本试题共8页,选择题部分40分,非选择题部分60分,满分100分。
考试用时60分钟。
2.答题前。
请考生务必将自己的姓名、座号写在答题卡的规定位置,并同时将考点、姓名、准考证号、座号写在试题的规定位置。
3.答选择题时,必须使用2B铅笔填涂答题卡上对应题目的答案标号,修改时,须用橡皮擦干净。
答非选择题时,必须使用0.5毫米黑色签字笔书写。
要求笔迹清晰、字体工整,务必在答题卡上题号所指示的答题区域内作答。
直接在试题上作答无效。
4.考试结束后,请将本试题、答题卡按要求提交。
5.本考试不允许使用计算器。
相对原子质量:H1 C12 N14 O16 Na23 Mg24 S32 Cl35.5 K39 Ca40 Fe56Cu64 Zn65 Ag108 Ba137第Ⅰ卷选择题部分(共40分)一、单项选择题:(本大题共10小题,每小题2分,共20分。
每小题给出的四个选项中,有一个选项最符合题目的要求。
)1.济南是一座具有悠久历史的文化古城。
下列“济南记忆”中,主要涉及物理变化的是( )A.炭火熬胶B.摩崖石刻C.烧制黑陶D.汉代冶铁2.2024年中国环境日的主题为“全面推进美丽中国建设”。
下列做法中。
不合理的是( )A.节约能源,禁用化石燃料B.合理施肥,维护生态平衡C.布袋购物。
读少“白色污染”D.垃圾分类,资源循环利用3.化学与人类的健康密切相关。
下列有关说法中,不合理的是( )A.凉菜调制,食醋调味B.健康生活,远离烟草C.海鲜保存,甲醛浸泡D.食品防腐,充入氮气4.具备基本的化学实验技能是进行探究活动的基础和保证。
下列实验操作中,不正确的是( )A.稀释浓硫酸时,将水倒入盛有浓硫酸的烧杯中B.加热试管中液体时。
不能将试管口朝向有人的方向C.蒸发结晶时,蒸发皿内出现较多固体时,立即停止加热D.洒出的酒精在实验桌上燃烧起来,立即用湿抹布盖灭5.如图分别为元素周期表的部分内容(图①)和某些微观粒子的结构示意图(图②)。
【含解析】2022年上海九年级生命科学学业考试模拟卷(1)(1)
2022学年第二学期九年级生命科学学业考模拟试卷 第1页 共7页2022学年第二学期九年级生命科学学业考模拟试卷(开卷考试,时间60分钟,满分100分)题号 一 二 总分 等第得分一、选择题(将下列各题中一个正确选项的编号填入括号内) 每题一分1.如图1所示,属于人体的四种基本组织中的…………………………………………( )A .神经组织B .肌肉组织C .结缔组织D .上皮组织 册一8-102. 脾在人体中的位置是……………………………………………………………………( )A .胸腔左下部B .胸腔右下部C .腹腔左上部 册一13D .腹腔右上部3.下列关于人体结构层次的排列中,正确的顺序是……………………………………( )A .组织→细胞→器官→系统→人体B .组织→细胞→系统→器官→人体C .细胞→组织→器官→系统→人体 册一16D .细胞→组织→系统→器官→人体4.小明和小杰是一对亲兄弟,小明长得像爸爸欧洲人,但小杰长得像妈妈中国人。
他们两个亲兄弟看起来却像两个国家的人,这种现象我们称为………………………………… ( )A .性状B .遗传C .基因D .变异 册一63 5. 图2为桃花结构示意图,授粉后会发育成种子的结构是……………………………( ) A .①B .②C .③ 册二11D .④6. 下列疾病都是由人体内激素分泌异常所引起是………………………………………( )A .肢端肥大症和糖尿病 册一49B .尿毒症和佝偻病学校_______________________ 班级__________ 学号_________ 姓名______________…………………………密○………………………………………封○………………………………………○线…………………………图1② ① ④③ 图2C.巨人症和坏血病D.甲亢和夜盲症7.2022年,新冠疫情当下,回家返乡人员需提前向居委报备,主动提供48小时核酸检测并出示健康码和行程码,经过流行病调查确定个人返乡的隔离条件,以上这些属于预防传染病中的哪一个环节………………………………………………………………………()A.控制传染源册一82B.保护易感人群C.切断传播途径D.确保人员健康8.“糖丸爷爷”顾方舟研发的疫苗被推广后,帮助中国数十万儿童免于致残,他研发的疫苗是以下哪一种……………………………………………………………………………()A.脊髓灰质炎疫苗册一82B.乙型肝炎疫苗C.卡介苗D.麻腮风疫苗9.在维护人体内环境稳定的各大系统中,负责吸收养分送入血液的是………………()A.循环系统B.消化系统册二27C.呼吸系统D.内分泌系统10. 世界卫生组织提出,现代健康的含义应包括………………………………………()①身体健康②心理健康③良好的社会适应能力④道德健康A.①②B.①②③C.②③④D.①②③④11.椰子树属于下列哪一种植物…………………………………………………………()A.苔藓植物B.蕨类植物C.裸子植物D.被子植物册二6:椰果有果皮包被的种子12.下列动物中能真正适应陆地生活的脊椎动物是……………………………………()A.大鲵B.水母C.蜥蜴册二26D.竹节虫13.制作面包用的酵母菌和橘皮上长的青霉都属于……………………………………()A.细菌B.真菌C.病毒D.动物14.地球上的生态系统中自我调节能力最强的是………………………………………()A.森林生态系统册二99B.海洋生态系统C.荒漠生态系统D.湿地生态系统15.下列各种做法中,有利于生态环境改善的是………………………………………()A.长期使用含磷洗衣粉洗衣服水体富营养化,水质污染B.每年植树节栽种树木C.经常使用一次性筷子浪费木材D.入境时随身携带国外的水果外来物种检疫2022学年第二学期期末九年级生命科学学业考模拟试卷第2页共7页16.下列关于生物分类的叙述中,正确的是……………………………………………()A.属是最小的分类阶元B.分类单位越小,所包括的生物种类越多C.生物分类的主要依据是生物的生活环境D.分类单位越小,生物之间彼此具有的共同特征越多册二6017.小明用显微镜观察洋葱表皮临时装片时,选用以下哪组的物镜和目镜组合,放大倍数最大……………………………………………………………………………………………()A.物镜40x目镜10x B.物镜10x目镜10xC.物镜4x目镜16x D.物镜10x目镜16x18.关于城市生态环境的特点,下列叙述中错误的是…………………………………()A.城市生态系统是以人为中心的人工生态系统B.城市生态系统缺少分解者C.城市生态系统大量的能量和物质必须从外部输入册二114D.城市生态系统的食物链要比自然生态系统复杂【简单】19.雄性极乐鸟会用红色的果实装饰一片土地,用鸟喙叼着破布擦拭树枝,在准备好“舞台”和“观众席”后,它开始转动身体跳舞,吸引异性前来观看。
2024年内蒙古包头市初中学业水平考试.语文模拟试题(文字版含答案)
2024年内蒙古包头市初中学业水平考试模拟考试语文试题一、基础知识综合(每小题2分8分)阅读下文,完成下列小题。
在苍茫雄浑的莽.原上,在繁星万点的苍穹.下,广袤无垠的祖国北疆,歌声欢腾了数不清的田野毡房、工厂车间。
俯瞰.山川大地,高原上跳荡不息的篝火、清澈见底的流水、根脉相连的小草、竞相绽放的花朵,装点着我们的家园。
时间的脚步,像草原上疾弛的骏马,又像一曲蒙古族长调,起伏而悠长。
“马儿哟,你慢些走慢些走”,是应和.乌兰牧骑热情的蹄音,还是在诠释万马奔腾保边疆的昂扬斗志?长调那么长,是因为草原的路漫长,还是因为无数奋进者唱出的心声浑厚深长?绿意连绵,群山巍峨,迎着初升的太阳,含笑走向广阔的生活。
星夜宛然,歌声在心头飞翔,唱出人生的酣畅淋漓,唱尽人生的大气磅礴。
人活着就要发光发热,。
征途漫漫,高擎“让青春在长征路上闪光”的旗帜,步伐是那样坚定和执着,目光里写满坚毅和忠诚,义无反顾地献出自己的青春年华,换来祖国的美丽、富饶、繁荣。
1.文中加点字注音有误的一项是()A.莽(mǎng)B.穹(qióng)C.瞰(kàn)D.和(hé)2.文中画横线的词语有错别字的一项是()A.篝火B.疾弛C.巍峨D.高擎3.文中加粗的词语使用有误的一项是()A.广袤B.浑厚深长C.宛然D.大气磅礴4.填入上面文段横线处的句子,衔接最恰当的....一项是()A.在捷径和长路、索取与奉献之间,不同的人,也可能选择各异B.在索取与奉献、捷径和长路之间,不同的人,也可能选择各异C.在捷径和长路之间,选择跋涉;在索取与奉献之间,选择后者D.在索取与奉献之间,选择后者;在捷径和长路之间,选择跋涉二、名句名篇默写(每小题2分10分)5.请根据语境提示默写。
源远流长的中国文学长河中,美丽的大自然一直被吟咏、传唱。
其中,千姿百态的植物有着别样的魅力与美感。
因此,花草树木常常入诗入文,传情达意。
同样写“花草”,白居易在《钱塘湖春行》中的“(1),”写出春游的欣悦;范仲淹在《岳阳楼记》中以“(2),”传达迁客骚人的览物之喜;而陶渊明在《桃花源记》中则以“(3),”描绘出桃林的唯美奇幻。
北京市东城区2023-2024学年九年级英语第一学期期末学业水平测试模拟试题含解析
北京市东城区2023-2024学年九年级英语第一学期期末学业水平测试模拟试题注意事项1.考生要认真填写考场号和座位序号。
2.试题所有答案必须填涂或书写在答题卡上,在试卷上作答无效。
第一部分必须用2B 铅笔作答;第二部分必须用黑色字迹的签字笔作答。
3.考试结束后,考生须将试卷和答题卡放在桌面上,待监考员收回。
Ⅰ. 单项选择1、I walk to the street corner and wait ______ the school bus.A.to B.for C.at D.in2、—The young man seldom did the housework after he bought the robot, ?—. He could relax and have time for his hobbies.A.did he; Yes B.didn’t he; No C.didn’t he; Yes D.did he; No3、--- Do you think he can get the first prize for jumping?--- Impossible now. He ________ to do so, but he has just hurt his leg.A.has hoped B.was hoped C.has expected D.was expected4、The show was so that I couldn’t stop laughing.A.sad B.terrible C.funny D.serious5、—Why not________your teacher for help w hen you can’t finish________the story by yourself.A.to ask:writeB.to ask;writingC.ask;writingD.asking;to write6、He tried to avoid by his father.A.seeing B.to see C.being seen D.to be seen7、—How clean your car is!—Thank you. It very often.A.is washed B.washesC.was washed D.washed8、I always believe that is difficult if we try our best to do it.A.something B.anything C.everything D.nothing9、There is no need to push the kids too hard, ,you hate to see them stressed out.A.After all B.Over again C.In all D.Above all10、Happiness and success often come to those are good at recognizing their own strengths.A.where B.who C.what D.whichⅡ. 完形填空11、Choose the right words or expressions to complete the passage. (选择最恰当的单词或词组完成短文)Fire can help people in many ways. It can keep your house 1 in winter, give light and cook food. But fire can also be very 2 . Big fire can burn trees, houses, animals or people. Nobody knows how people began to use fire. But there are 3 interesting old stories about how a man or woman started a fire. One is about a man. The man4 a very long time ago. He went up the sun and brought fire down.Today people know how to make a fire with matches (火柴). Children sometimes like to play with them. However, matches can be very harmful. One match can burn a piece of paper, and then it even could burn a house. 5 a small fire can turn into a big fire fast, you must be careful with matches.1.A.warm B.cool C.hot D.cold2.A.strong B.useful C.dangerous D.intelligent3.A.plenty of B.much C.little D.no4.A.worked B.studied C.learned D.lived5.A.Because B.If C.When D.AfterⅢ. 语法填空12、五、语法填空阅读下面短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
2023-2024学年合肥市瑶海区九年级英语第一学期期末学业水平测试模拟试题含解析
2023-2024学年合肥市瑶海区九年级英语第一学期期末学业水平测试模拟试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用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,再选涂其它答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、Lily doesn’t know ________ she and her friends can do to he lp the little boy ________ parents have left their hometown for making money.A.that; whose B.how; who C.what; who D.what; whose2、Today, there are _____ chances to get to know people from other cultures. Don’t just stare at your shoes. Go and say “Hi”.A.plenty of B.quite a lot C.too much3、—Have you ________ your plan, Jimmy?—Not yet. It still needs improving.A.given up B.handed in C.thought of D.put away4、— Excuse me, could you tell me _______?—There’s an e-shop on the third floor. You can make it there.A.how to arrive the e-shop B.how can I go to the e-shopC.where I can have my MP4 repaired D.which was the way to the e-shop5、---_______I smoke here, Madam?---Sorry, you _______. Look at the sign.A.Could, couldn’t B.Can, couldn’tC.Co uld, can’ D.Must, needn’t6、Most people are ______ building a paper factory near here. They are worried that the river will get polluted.A.for B.with C.against D.beyond7、---I can’t find Mr. Crisp in the office. Do you know where ________?---Oh, Mr. Crisp ________ to New York for an important conference.A.he is; has gone B.is he; has gone C.he is; went D.is he; has been8、Our English teacher is kind. She always talks to us with a smile __________ her face.A.at B.to C.of D.on9、-- ________ can you finish this English examination?-- In about one and a half hours.A.How far B.How often C.How soon D.How long10、— What should we do to save electricity?—We should________ the light when we leave the room.A.put on B.switch off C.take offⅡ. 完形填空11、Dear Claire,In your letter, you ask me about my favorite festival. It is Spring Festival. It is 1 January or February. For the festival, we do many things and buy many things, so we are always 2 . The 3 of Spring Festival is4 . We wear (穿) new red5 and put up red paper-cuts (窗花). And we put lucky money (压岁钱) in red packets. Boys and girls are always happy those days,6 they can have a good time with7 family, and they can get lucky money from their parents, grandparents, uncles and aunts. What do we8 on Spring Festival? Jiaozi and some fruits. In the evening, the family will watch TV together, but children9 watching TV for 4 hours. It’s really boring for them. They always play with their friends.What about you? What 10 do you like best?Your friend,Li Ju1.A.on B.for C.in D.at2.A.tidy B.busy C.healthy D.free3.A.color B.food C.thing D.subject4.A.yellow B.red C.blue D.black5.A.clothes B.jackets C.skirts D.trousers6.A.so B.and C.but D.because7.A.their B.theirs C.they D.them8.A.eat B.watch C.play D.know9.A.like B.want C.don’t like D.don’t want10.A.festival B.food C.sport D.storeⅢ. 语法填空12、Last Wednesday night, a young lady was attacked in the street. It 1.(happen) at around 8:00 p.m. Some people heard a shout from the lady. When people got there, the lady2.(lie) on the ground, crying. It's said that the lady was a nurse in a hospital. She was on her way back home from work at that time. Suddenly a strong man ran to her andshouted, " 3.(give) me all your belongings(所带的东西), or I4.(kill) you." She had to give all her money to the man.Luckily the lady5.(not hurt). Now, the police 6.(search)for the robber.Ⅳ. 阅读理解A13、Winners’ ClubYou choose to be a winner!The Winners Club is a bank account specially designed for teenagers. It has been made to help you better manage your money. The Winners Club is a transaction account(交易账户)where you receive a key-card so you can get to your money 24/7-that's 24 hours a day, 7 days a week!It's a club with impressive features for teenagers:No account keeping fees!You're no millionaire so we don't expect you to pay large fees. In fact, there are no account keeping or transaction fees! Excellent interest rates!You want your money to grow. The Winners Club has a good rate of interest which gets even better if you make at least two deposits(储蓄)without taking them out in a month.ConvenientTeenagers are busy-we get that. Y ou may never need to come to a bank at all. With the Winners Club you can choose to use handy tellers and to bank from home using the phone and the Internet. You can have money directly deposited into your Winners Club account. This could be your pocket money or your pay from your part-time job!Mega magazine includedAlong with your regular report, you will receive a FREE magazine full of good ideas to make even more of your money. There are also fantastic offers and competitions only for Winners Club members.The Winners Club is a great choice for teenagers. And it is so easy to join. Simply fill in an application form. You will have to get permission from your parent or guardian(监护人)but it is easy. We can't wait to hear from you. It's the best way to choose to be a winner!1.Which of the following is TRUE about the Winners Club?A.Special gifts are ready for parents.B.The bank opens only on work days.C.Services are convenient for its members.D.Fees are necessary for the accounting keeping.2.The underlined word “permission” in the last paragraph probably means___.A.promise B.agreement C.trust D.praise3.What is the purpose of this passage?A.To set up a club. B.To provide part-time jobs.C.To organize kid-parent activities. D.To introduce a new banking service.B14、The Information about Some Great Inventions1.What' s the form(表格) above about?A.Rules. B.Movies. C.Dreams. D.Inventions.2.What' s the latest invention according to the form above?A.The wheel. B.The paper. C.The telephone. D.The light bulb.3.How many Chinese inventions are mentioned in the form above?A.One. B.Two. C.Three. D.None.4.What was the telephone made of according to the form above?A.Wood. B.Glass and metal.C.Plastic and metal. D.Cotton and flax,5.Thanks to the invention of the wheel, people can .A.have enough light to read B.travel fasterC.communicate over distances D.have more books to readC15、I still remember quite clearly the day when my parents got divorced(离婚). Dad kissed me goodbye and left.For a long time Mum and I lived a peaceful life. Then one day, Jim came over for lunch wearing a blue suit with a short brown tie and a green shirt. I couldn't believe this was going to be my new stepfather. It couldn't be true that my beautiful mother would marry someone who dressed like a clown(小丑). I hated him.Lunch was terrible. Mother kept trying to start a conversation, but neither Jim nor I would say much. Finally Ioffered to bring in the dessert just to get away from the clown.Something unpleasant happened, but I didn’t mean(故意)to do it. I guess the plate slipped. But one minute I was handing Jim his blackberry pie, and the next, dark purple berries were oozing(渗出) all over his shirt and tie.I was mortified. My face turned bright red. Jim looked very much surprised at first, but then he began to laugh. I started to laugh too. Maybe this guy was all right, after all. Then I had a quick look at my mother. She looked happier than I had seen her in a long time.1.The writer thinks Jim's clothes look_____________.A.nice B.expensive C.usual D.funny2.From the story we might guess that_________·A.Jim did n’t seem likeable at first B.the writer liked Jim from the startC.Jim was angry with the writer D.Jim didn't like blackberry pie3.In this story the word "mortified" means________.A.happy B.bored C.embarrassed D.angry4.The best title for this story would be ______________.A.I Love Pie B.My New StepfatherC.The World's Worst Lunch D.Mothers Shouldn't MarryD16、When you were at school, the last thing you probably wanted to do was spend your weekends going to work. There was homework to do, sport to play and fun to be had. But our parents probably advise us to find a job to make some pocket money and get some life experience. When I was a teenager I had a paper round: delivering newspapers to people's homes. I then turned to a Saturday job in a supermarket: putting the things on the shelves in order and working at the checkout.Today in the UK you are allowed to work from the age of 13, and many children take up part-time jobs. It's a taste of independence. Teenagers agree that it teaches valuable lessons about working with adults and about managing your money. So, that's no bad thing!Some research has shown that not taking on a Saturday or holiday job could be detrimental to a person later. A 2015 study by the UK Commission on Employment and Skills found that employer's(雇主)organizations criticized young adults because they were ill-prepared for full time work. And they were proved not having taken part-time work at school age. However, a recent report has shown that the number of school children in the UK with a part-time job has fallen by 20% in the past five years.So, does this mean that British teenagers are now more afraid of hard work? Probably not. Some experts feel thatyoung people think going out to work will influence their performance at school, and they are under more pressure now to study hard and get good exam results---and a good job in the long term. However, Geoff Barton, general secretary of the Association of School and College Leaders, told BBC News that "Proper part-time work is a good way to help young people learn skills that they will need in their working lives." It's all about getting the right balance between doingpart-time work and having enough time to study and rest.Many young people actually want to work because it gives them a sense of freedom. One 13-year-old girl called Rachel, who has a Saturday job in a shop, told the BBC that "I enjoy my job because I'm making money and it helps my confidence speaking to people and socializing with people I work with." That seems like something worth getting up for on a Saturday morning. Did you do a part-time job when you were at school?1.According to the passage, teenagers probably prefer on the weekend.A.doing homework to having fun with friendsB.playing sports outside to doing homework at homeC.having fun with their parents to playing sports outsideD.playing sports to delivering newspapers to people's homes2.What does the word "detrimental" in Paragraph 3 probably mean?A.Harmful. B.Impossible. C.Important. D.Worthy.3.According to the passage, Geoff Barton probably agrees that .A.Teenagers like taking part-time jobs more than full-time jobs.B.doing part-time jobs is more important than studying and resting.C.taking up part-time jobs benefits teenagers' future working lives.D.teenagers are under more pressure now to study hard and get good grades.4.What's the writer's main purpose in writing the passage?A.To call people's attention to the school childrenB.To Criticize school children are out of controlC.To show school children dislike part-time jobsD.To encourage school children to take part-time jobsE17、Doctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children's book writers in the world. His books are very popular with young readers. They enjoy the invented words and the pictures of unusual funny animals and plants.In 1954, life magazine published(刊登) a report about school children who could not read. The report said manychildren's books were not interesting. Doctor Seuss strongly hoped to help children and decided to write books that were interesting and easy to read. He used words with the same ending sound, like fish and wish. He did not receive training in art. Y et he drew the pictures for most of his books.In 1957, Dr. Seuss wrote The Cat in the Hat. He used less than 230 words to write the book and even a six-year-old kid should be able to read it. It was a fun story and easy to read. Children loved it. Their parents loved it, too. Today it is still one of the stories they like best. The success of The Cat in the Hat made him want to write more books for children. In 1960, he wrote a book using less than fifty words. The book is called Green Eggs and Ham.In 1984, Doctor Seuss won a Pulitzer Prize (普利策奖). He was honored for the education and enjoyment his books provided American children and their parents.He died at the age of 87, but his influence remains. Millions of his books have been sold worldwide. People say his books helped change the way American children learned to read. Yet, his books are loved by people of all ages. Doctor Seuss once said, “I do not write for children. I write for people.”1.People like his books because the books _______.A.are cheap and easy to getB.were written in different languagesC.are easy and interesting to readD.were written with in invented words2.Which of the following is TRUE according to the passage?A.Doctor Seuss wrote Green Eggs and Ham with over 230 words.B.Doctor Seuss wrote books only for children in the United States.C.The Cat in the Hat was written only for six-year-old children.D.His books provided education and enjoyment for Americans.3.From the text we know that Doctor Seuss _______.A.won a Pulitzer Prize soon after his deathB.sold millions of his books himself worldwide.C.changed American children’s way of readingD.wrote the largest number of books in the worldF18、阅读下面四篇语言材料,然后按文后要求做题.。
江西省上饶市鄱阳县八校联考2023届九年级学业水平模拟考试(一)数学试卷(含解析)
2023年江西省初中学业水平模拟考试(一)数学注意事项:1.全卷满分120分,答题时间为120分钟。
2.请将各题答案填写在答题卡上。
一、选择题(本大题共6小题,每小题3分,共18分.每小题只有一个正确选项)1.下列各数中,是正数的是()A. B.0 C.2 D.2.如图所示的是一个空心圆柱体,其主视图是()A. B. C. D.3.下列结果中计算正确的是()A. B.C. D.4.直线与直线相交于点,则的值为()A. B.5 C.7 D.85.设,是方程的两个实数根,则的值为()A. B. C.12D.106.已知,为抛物线上的点,且原点为的中点,则线段的长为()A. B. C. D.二、填空题(本大题共6小题,每小题3分,共18分)7.据消息,2022年江西省研究生考试报名人数为14.07万,将数据14.07万用科学记数法表示为______.8.正六边形的每个内角的度数是______.9.如图所示的是由一些火柴棒摆成的图案:摆第1个图案用了5根火柴,摆第2个图案用了9根火柴,摆第3个图案用了13根火柴……按照这种方式摆下去,摆第10个图案需要用的火柴棒根数是______.10.七巧板起于我国先秦时期,古算书《周髀算经》中有关于正方形的分割术,经历代演变而成七巧板,如图1所示.19世纪传到国外,被称为“唐图”(意为“来自中国的拼图”).图2是由边长为4的正方形分割制作的七巧板拼摆成的“叶问蹬”图,则图中抬起的“腿”(即阴影部分)的面积为______.11.如图,在正方形中,将边绕点逆时针旋转至,连接,,若,,则线段的长度为______.12.如图,,点在上,且,是上的点,在上找点,以为边,,,为顶点作正方形,则的长为______.三、解答题(本大题共5小题,每小题6分,共30分)13.(1)计算:.(2)如图,在四边形中,,,对角线,相交于点,且.求证:在四边形是矩形.14.解不等式组:,并把解集在数轴上表示出来.15.如图,是正方形的边上一点,连接.请仅用无刻度的直尺完成画图.(保留画图痕迹,不写作法)(1)在边上找点,使得.(2)将线段绕点顺时针旋转90°,得到线段,画出.16.为了解学生最喜欢的球类运动,学校从九年级的学生中随机抽取了部分学生,进行问卷调查(每个被调查的学生在5种球类运动中只选择最喜欢的一种),5种球类运动分别是:.篮球,.足球,.排球,.羽毛球,.乒乓球.(1)某学生选到足球的概率是______.(2)学校想从4名学生(2名男生,2名女生)中随机抽取2名学生谈谈自己喜爱的原因.请用列表或画树状图的方法,求抽到的2名学生是一男一女的概率.17.如图,在平面直角坐标系中,一次函数的图象与反比例函数的图象交于,两点.(1)求点,的坐标.(2)求一次函数与反比例函数的表达式.四、解答题(本大题共3小题,每小题8分,共24分)18.为了解双减背景下学生每天完成作业的时间情况,某中学对名学生每天完成作业时间进行抽样调查,根据时间(单位:分钟)分成,,,,五个组,并将调查结果绘制成如图所示的两幅不完整的统计图.根据以上信息,回答下列问题:(1)______,______.(2)学生每天完成作业时间的中位数落在______组,众数落在______组.(3)若全校共有2000名学生,请估计该校每天完成作业时间不低于120分钟的学生有多少人.19.为创建国家卫生城市,我市计划将城市道路两旁的人行道进行改造.经调查可知,若该工程由甲工程队单独来做,恰好能在规定时间内完成.若该工程由乙工程队单独完成,则需要的天数是规定时间的3倍.若甲、乙两工程队合作3天后,余下的工程由甲工程队单独来做还需4天完成.(1)问我市要求完成这项工程规定的时间是多少天?(2)已知甲工程队做一天需付工资3万元,乙工程队做一天需付工资0.8万元.应该怎样安排才能在规定的时间完成这项工程,并使工程花费最少?最少是多少元?20.“垃圾入桶,保护环境从我做起”.如图所示的是某款垃圾桶侧面展示图,,,,.桶盖可以绕点逆时针方向旋转,当旋转角为40°时,桶盖落在的位置.(1)求在桶盖旋转过程中,点运动轨迹的长度.(2)求点到地面的距离.(参考数据:,,)五、解答题(本大题共2小题,每小题9分,共18分)21.如图,以线段上一点为圆心,长为半径画圆,交于点,是上异于点,的一点.,且.(1)求证:是的切线.(2)若,平分,求线段的长.22.如图,抛物线与轴相交于点,与轴相交于点.(1)求抛物线的表达式.(2)为线段上一点(不与点,重合),过点作轴于点,交抛物线于点,若,求点的坐标.(3)是第四象限内抛物线上一点,已知,则点的坐标为______.六、解答题(本大题共12分)23.课本再现如图1,在等边中,为边上一点,为上一点,且,连接与相交于点.(1)与的数量关系是______,与构成的锐角夹角的度数是______.深入探究(2)将图1中的延长至点,使,连接,,如图2所示.求证:平分.(第一问的结论,本问可直接使用)迁移应用(3)如图3,在等腰中,,,分别是边,上的点,与相交于点.若,且,求的值.2023年江西省初中学业水平模拟考试(一)数学参考答案1.C2.A3.B4.C5.B6.D7.8.120°9.4110.311.112.或或提示:分四种情况,①如下图,当点在点右侧,在上方时..②如下图,当点在点左侧,在上方时..③如下图,当点在右侧,在上方时..④如下图,当点在点左侧,在点上方时..13.解:(1).……3分(2)证明:∵,,∴四边形为平行四边形,∴,.又∵,∴,∴平行四边形为矩形.……6分14.解:,由①得.……1分由②得.……3分∴不等式组的解集为.……4分解集在数轴上的表示如下:……6分15.解:(1)如图,点即为所求.……2分(2)如图,即为所求.……6分16.解:(1).……2分(2)先将两个男生分别记作“男1”“男2”,两个女生分别记作“女1”“女2”,然后列表如下:第一男1男2女1女2次第二次男1男2,男1女1,男1女2,男1男2男1,男2女1,男2女2,男2女1男1,女1男2,女1女2,女1女2男1,女2男2,女2女1,女2共有12种等可能的结果,其中抽到一男一女的结果有8种,∴(一男一女).……6分17.解:(1)∵一次函数的图象与反比例函数的图象交于,两点,∴,∴,解得.……1分∴,.……3分(2)由(1)得,.将点,代入,得,解得,∴一次函数的表达式为.……5分把代入中,得,∴,∴反比例函数的表达式为.……6分18.解:(1)40;20.……2分(2);.……6分(3)(人).答:该校每天完成作业时间不低于120分钟的学生约有800人.……8分19.解:(1)设规定时间是天.由题意列方程为,解得,……2分经检验,是原方程的解,且符合题意.……3分答:我市要求完成这项工程规定的时间是8天.……4分(2)由题可得完成相同工作量乙的花费更少,因此在按时完成的基础上,应该让乙参与的天数更多.(天),……6分∴应安排甲做天,乙做8天.……7分最少花费(万元).……8分20.解:(1)如图,连接,由旋转知点,都在以为圆心,为半径的圆上,则点运动轨迹的长度为弧的长.在中,,,,……2分∴弧的长度为,故点运动轨迹的长度为 (3)分(2)如图,过点作,垂足为点,交于点.∴.∵,∴四边形为矩形,∴,.……5分在中,, (7)分∴.答:点到地面的距离约为82.8cm.……8分21.解:(1)证明:如图,连接,.∵,∴.∵是的直径,∴,.又∵,∴,∴.∵,∴,∴,∴.∵是半径,∴是的切线.……4分(2)∵平分,∴.∵,∴,……6分∴.……7分∴在中,,,∴在中,.……9分22.解:(1)将,代入,得,解得,∴抛物线的表达式为.……2分(2)设直线的表达式为,将点,代入,得,解得,∴直线的表达式为.……3分∵点在线段上,∴设,∴点的坐标为,点的坐标为.∵,∴,整理得,解得,(舍),∴点的坐标为.……7分(3).……9分提示:设交轴于点,∵,∴.设,则,在中,,∴,解得,∴.设直线的表达式为,将点,代入,得,解得,∴直线的表达式为.令,解得(舍),,将代入中,,∴.23.解:(1);60°.……2分(2)∵,,∴是等边三角形,……3分∴,.∵在等边中,,,∴,∴,∴,……5分∴,∴,∴平分.……6分(3)如图,延长至,使得,连接,,过点作,交于点.设.∵,,∴,∴,∴,∴.∵,即,∴,……8分∴,,∴,.∵,∴,∴,,∴.……12分。
2023年山东省东营市初中学业水平考试语文模拟试题(一)
一、积累运用(共20分)1.给加点的字注音,或根据拼音写出汉字。
(2分)牢记总书记嘱托,中科大实施“建设一流师资队伍、培养拔尖创新人才、提升科学研究水平、传承创新优秀文化、着力推进成果转化”五大建设任务,立足国家重大需求,瞄准科技前沿和关键领域。
从“嫦娥”揽.月到“墨子”升空,从“天问”探火到“奋斗者号”áo游万米深海,面向国家重大需求,中科大6年来主导、参与了多项“大国重器”研究,原创性科技成果不断涌现。
①揽lǎn ②áo遨2.选出依次填入横线上最恰当的一组词语(2分)( A )①走在林间,天色微暗,行人渐少, 几声鸟鸣,为山林平添了几分寂静。
②在我国很多地区,都有端午节挂荷包的习俗,据说这样可以疾病。
③从高空鸟瞰,威尼斯犹如一颗精致的水晶, 在亚得里亚海蔚蓝色的波涛中,熠熠生辉。
④自闭症患者自我封闭。
他们不会表达自己的感情,无法对他人的肢体语言予以适当的回应。
A.偶尔祛除镶嵌既又B.偶然驱除镶嵌既又C.偶尔驱除嵌入因为所以D.偶然祛除嵌入因为所以导析:A ①偶尔:偶然发生的,没有计划的,无周期、无规律。
偶然:表示意想不到的,事理上不一定要发生而发生的。
根据语境,应选“偶尔”。
②祛除:除去(疾病、疑惧、邪祟等)。
驱除:赶走,除掉。
与“疾病”搭配,应选“祛除”。
③镶嵌:把一物体嵌入另一物体内。
嵌入:把较小的东西卡进较大东西上面的凹处(多指美术品的装饰)。
横线后有“在”,故应选“镶嵌”。
④因为……所以……:表示因果关系。
既……又……:表示并列关系。
句中横线后的两个句子是并列关系,应用“既……又……”。
所以选A。
3.下面句子中加点词语使用正确的一项是(2分)( D )A.当代中学生要多读书,勤思考,并以积极的姿态投身到沸沸扬扬....的新生活中去。
B.中考临近,室友们都在认真复习,张辉同学却苦心孤诣....地沉迷游戏。
C.每逢节假日,中央大街两旁的店铺,就会顾客盈门,生意葱茏....。
2025届湖北省武汉市洪山区化学九年级第一学期期末学业水平测试模拟试题含解析
2025届湖北省武汉市洪山区化学九年级第一学期期末学业水平测试模拟试题考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。
2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。
3.考生必须保证答题卡的整洁。
考试结束后,请将本试卷和答题卡一并交回。
一、单选题(本大题共10小题,共20分)1.质量守恒定律的探究实验——红磷燃烧实验如图所示,下列说法正确的是A.玻璃管只具有导气作用B.红磷燃烧时产生大量白色烟雾C.所称量药品可以直接放在天平的托盘上D.在锥形瓶底部铺有一层细沙,其作用是防止锥形瓶底部局部受热炸裂2.将一定量的铁粉加入到含有Cu(NO3)2和AgNO3的废液中,充分反应后过滤,向滤渣中加入稀盐酸,无气泡产生。
下列判断正确的是()A.滤渣中一定含有Ag和Cu,滤液中一定含有Fe(NO3)2B.滤渣中一定不含Fe,滤液中一定含有Fe(NO3)2和Cu(NO3)2C.滤渣中一定含有Ag,滤液中可能含有Cu(NO3)2和AgNO3D.滤渣中一定含有Ag和Cu,滤液中可能含有Cu(NO3)2和AgNO3C、碳纳米管的结构示意图,下列正确的是()3.如下图是金刚石、石墨、60A.金刚石和石墨的质地较软,常用作润滑剂B.这四种物质都是由碳原子直接构成的,化学式都是CCOC.这四种物质完全燃烧后的产物都是2D.金刚石和石墨的碳原子排列方式不同,因此化学性质和用途完全不同4.加州花园大火引发了人们对燃烧与灭火的关注,下列对燃烧与灭火的分析正确的是()A.雨棚燃烧,可以升高雨棚的着火点B.书房失火,宜用二氧化碳灭火器灭火C.高压水枪灭火,是因为可以隔绝空气D.熏制腊肉,树枝架空可延长燃烧时间5.镓是一种奇妙的金属,放在手心马上熔化,犹如荷叶上的水珠流来流去。
下列说法正确的是( )A.镓的熔点较高B.镓原子结构示意图中X的值为8C.镓原子核内质子数为31D.镓的相对原子质量为69.72g6.下列不属于常用危险化学品标志( )A.B.C.D.7.下列实验操作或设计正确的是()A.塞紧橡皮塞B.吸取液体C.氧气验满D.摆放试管8.当发现家里的煤气泄漏时,你会立即采取的办法是A.打开排气扇B.关闭煤气阀门,打开门窗C.立即打119报警D.向屋里各处洒水,使煤气被水吸收9.化学反应前后肯定没有变化的是①原子数目②分子数目③元素种类④原子种类⑤物质种类⑥物质的总质量A.①④⑤⑥B.①③④⑥C.①②⑥D.②③④10.下列实验操作一定能达到实验目的是()A.A B.B C.C D.D二、填空题(本大题共1小题,共4分)11.已知A、B、C三种物质的溶解度曲线如图所示。
黑龙江省哈尔滨市南岗区萧红中学2025届英语九年级第一学期期末学业水平测试模拟试题含解析
黑龙江省哈尔滨市南岗区萧红中学2025届英语九年级第一学期期末学业水平测试模拟试题考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。
2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。
3.考生必须保证答题卡的整洁。
考试结束后,请将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、Jiayuguan is the west of Gansu Province and it is famous the Great Wall.A.on;for B.in;of C.to;of D.in ;for2、---Who was knocking at the door just now?---______ was my cousin Andy.A.He B.She C.They D.It3、When you travel abroad, you can hardly avoid products made in China.A.to buy B.buying C.buy D.be bought4、Bob’s first book was by four book companies, but he didn’t lose heart.A.taken down B.come down C.turned down D.written down5、Sun Li is a kind girl. She often ______ the people in trouble.A.will help B.helps C.is helping D.has helped6、—How soon will we get the offer from a new high school?—_____ about two months.A.In B.For C.Among D.During7、—All the people in Zhenjiang need to work together to make our city more beautiful.—That’s it. .A.Many hands make light work B.Practice makes perfectC.When in Rome, do as the Romans do D.A friend in need is a friend indeed8、We should not look down upon small mistakes, or they______ lead to big accidents.A.must B.need C.should D.might9、—Let’s eat out this evening.—Have you got the first prize in the speech competition?A.Why not? B.What for? C.Y es,I’d love to.D.Thank you very much.10、-Did Liu Ying and Liu Li come to your birthday puny, Tina?-I had invited them, but _________ of them showed up.A.both B.all C.none D.neitherⅡ. 完形填空11、完型填空(10小题,每小题1分,共10分)先通读短文,掌握其大意,然后从A、B、C、D四个答案中选出一个可以填入相应空白处的最佳答案,并将The USA is a very big country to visit, so choose carefully the places to see and the time to go. Bring a good 1 because you may want to travel around.New York and Washington D.C.are good places to 2 in May or October. It’s not too hot then. In winter there’s a lot of 3The best plan is to arrive 4 New England in September. The weather starts to get cooler and the trees start toc hange colour. It’s a good idea to bring your camera 5 you may want to take photos of the autumn 6 4,000 kilometres away in Los Angeles, California, the weather is fine all year. It’s nice to see the Sun in Decmber! Bring your swimsuit because you might want to 7 in the sea.In the northwest, it isn’t very cold, but there’s a lot of rain, so bring an umbrella. It’s8 to visit Alaska in July and August but it might be cool in the evening. So remember to wear some 9 clothes. But don’t come in winter. It’ll be dark all day and 10 cold.In Texas and the southeast , there are storms from time to time in summer and fall. It’s usually very hot and sunny compared to many other places.So when’s the best time to visit the USA ? Any time you lik e !1.A.book B.backpack C.map D.knife2.A.visit B.see C.look D.watch3.A.wind B.rain C.fog D.snow4.A.to B.in C.at D./5.A.so B.but C.because D.though6.A.leaves B.hills C.rivers D.sky7.A.run B.jump C.ride D.swim8.A.please B.pleasant C.pleasure D.pleased9.A.warm B.cool C.hot D.cold10.A.freeze B.froze C.frozen D.freezingⅢ. 语法填空12、阅读下面短文,用括号内所给词的适当形式填空,必要时可加助动词或情态动词。
浙江省义乌市秀湖中学2025届英语九年级第一学期期末学业水平测试模拟试题含解析
浙江省义乌市秀湖中学2025届英语九年级第一学期期末学业水平测试模拟试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用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,再选涂其它答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
Ⅰ. 单项选择1、—I’m sorry I________my exercise book at home this morning.—I t doesn’t matter. Don’t forget________it here this afternoon.A.forget; to bring B.left; to take C.forget; bringing D.left; to bring2、-Have you improved your spoken English?-Not yet.I'll try my best______I am not good at it now.A.so B.although C.but D.until3、—Have you finished your homework yet?—Yes. I _________ it twenty minutes ago.A.have finished B.finishedC.will finish D.had finished4、A friend in need is a friend indeed. The only way a friend is to be one.A.for having B.having C.to have5、Ben is a hard-working writer. He wrote his ________ novel when he was ________ years old.A.fifth; fifty B.fifth; fiftieth C.five; fifty D.five: fiftieth6、-Must I stay here with you? -No, you_____. You may go home now, but you_____ go to the net-bar.A.mustn't, needn't B.needn’t, mustn’tC.must, need D.need, must7、Linda, you need to talk to my grandma loudly, she is a bit __.A.deaf B.blind C.clever D.kind8、— How long has Mr. Brown________?—Since two years ago.A.came to Jinan B.left JinanC.started this job D.stayed in this school9、There are about people in the village.A.eight hundred B.eight hundredsC.eight hundred of D.eight hundreds of10、Jen speaks good Chinese. She _____ the Chinese language at Beijing University for a year after she finished university in London.A.studies B.is studying C.has studied D.studiedⅡ. 完形填空11、Bike-sharing is a new choice for short journeys in cities. It is good to the 1 development of the big cities.A 2 by a company found that shared bikes started the nation's 3 for bikes again.Now more and more Chinese people are 4 bikes instead of cars to make short journeys in cities.An engineer of that company says that since the 5 of shared bikes,people have made fewer trips by car. The love for shared bikes is not only among 6 people,who were born in the 1980s and 1990s,but also among people over sixty.At weekends,the number of the riders in Shenzhen reaches the 7 of all cities. On weekdays,the number of people who use shared bikes to travel to world is 8 in Shanghai.It is said that bike-sharing will help 9 the cities' environment. It not only helps solve the traffic problems,but also will help to make more use of space in cities. Take Beijing as an 10 if more people choose shared bikes,an area of five Bird's Nest stadiums(体育场)will be saved.1.A.slow B.healthy C.harmful D.sudden2.A.rule B.plan C.report D.suggestion3.A.search B.worry C.preparation D.love4.A.choosing B.pushing C.repairing D.locking5.A.end B.start C.control D.fall6.A.strong B.weak C.old D.young7.A.top B.side C.corner D.line8.A.coming over B.putting off C.going up D.giving away9.A.discover B.separate C.experience D.improve10.A.example B.energy C.environment D.ideaⅢ. 语法填空12、阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
2021年云南昆明九年级学业水平模拟考试(一)英语试题
2021 年昆明市初中学业水平考试英语模拟卷(一)(全卷四个部分,共8页,考试时间120 分钟,满分120 分)注意事项∶1.本卷为试题卷。
考生必须在答题卡上解题作答。
答案应书写在答题卡的相应位置上,在试题卷、草稿纸上作答无效。
2. 考试结束后,请将试题卷和答题卡一并交回。
第一部分听力(共四节,满分30 分)第一节听句子,选出与所听句子内容相符的图画。
听音前你有10秒钟的读题时间,注意听两遍。
(共5小题;每小题1分,满分5分)第二节根据所听到的句子,选出恰当的应答语。
听音前你有10 秒钟的读题时间,注意听两遍。
(共5 小题; 每小题1分,满分5 分)6.A. It's hot in summer. B.I agree. C. Yes,it does.7.A.All right. B.That's l right C.Yes,pleas.8. A. Not bad. B. You're welcome. C. I'm sorry to hear that.9. A. It depends. B. It's interesting. C. It's my pleasure.10. A. Well done. B Take it easy. C. Have a good time.第三节听对话及问题,选择正确答案。
听音前你有10秒钟的读题时间,注意听两遍。
(共5小题;每小题2分,满分10分)11. A.Chinese. B. English. C.Math.12.A.In a shop. B In a bank. C. In a library.13.A.5 yuan. B 10 yuan. C. 20 yuan.14.A. Eric's. B Gina's. C. Tom's15.A.Beautiful and relaxing. B, Quiet and relaxing. C. Loud and exciting.第四节听短文,根据短文内容选择正确答案。
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九年级学业考试模拟题一第Ⅰ卷(选择题共75分)一、听力测试(共20小题,计20分)(一) 录音中有五个句子,每个句子听一遍,然后从每小题A、B、C中选出能对每个句子做出适当反应的答语。
1. A. A good idea. B. Good luck. C. I think so.2. A. Take care. B. Have a good time. C. Congratulations.3. A. I’m sorry to hear that. B. It’s a pleasure. C. I’d love to.4. A. My pleasure. B. That’s all right. C. Sure.(5. A. For a month. B. A month ago. C. Once a month.(二)录音中有五组对话,听对话两遍后,从每小题A、B、C中选出能回答所给问题的正确答案。
6. What time is it nowA. 2:30.B. 2:25.C. 2:35.7. Where are the speakersA. In a library.B. At a bookshop.C. In a museum.8. What are they talking aboutA. The weather.B. The radio.C. The boating.9. What is David going to doA. Go to the park.B. Do his homework.C. Go to the theatre.*10. What sports did Bob doA B C(三)录音中有一段对话,听对话两遍后,从每小题A、B、C中选出能回答所给问题的正确答案。
11. What will Mary’s mother receive for her birthdayA. A shirt.B. A skirt.C. A CD.12. What is Mary’s motherA. A teacher.B. A traveler.C. A saleswoman.13. Who will cook the special dinnerA. Mary.B. Mary’s mother.C. Mary’s friend.%14. When will they do the shoppingA. Next Sunday.B. This afternoon.C. Tomorrow.15. What’s the relationship between the speakersA. Mother and father.B. Father and daughter.C. Mother and son.(四)录音中有一段独白,听独白两遍后,从每小题A、B、C中选出能回答所给问题的正确答案。
16. When will the final exam be heldA. Next Tuesday.B. Next Thursday.C. Next Sunday.17. What does the teacher ask the students to bringA. Class notes.B. Textbooks.C. Two or three pens.18. What will the final exam be like…A. It will have dictation questions.B. There will be five stories to read.C. It will be a research report.19. What is the most important for the students to prepare the examA. Read through class notes.B. Do more dictation exercises.C. Read through the books the teacher gave them.20. Who is the speakerA. A doctor.B. A student.C. A teacher.二、单项选择(共10小题,计10分)~从每小题A、B、C、D中选出一个能填入句中空白处的最佳答案。
21. It’s a clever _______ to take an umbrella with you. It’s going to rain soon.A. choiceB. supportC. matterD. hobby22. —Wow! You’ve got so many clothes.—But _____ of them are in fashion now.A. allB. bothC. neitherD. none23. Just be _______, and you won’t make any mistakes.A. carefulB. gratefulC. helpfulD. useful24. Although _______ my opinion, my friend didn’t come up with his own.,A. againstB. onC. forD. in25. A large number of people in the town strongly ________ the plan to build a playground forchildren.A. considerB. supportC. includeD. solve26. “You ____ have a wrong number,” she said. “There’s no one of that name here.”A. needB. canC. mustD. would27. Find ways to praise your children often, _________ you’ll find the y will open their hearts toyou.A. stillB. orC. andD. but28. —You’ve changed a lot.—Yeah. I took less exercise. I’ve________ 10 pounds.A. put upB. put outC. put onD. put away》29. —Have you finished reading the novel—No, I_________ my school project all day yesterday.A. was doingB. would doC. have doneD. do30. —Could you tell me ____________at the class meeting—Sorry, I don’t know. I was not at the meeting.A. what does he sayB. what did he sayC. what he saysD. what he said三、完形填空(共15小题,计15分)阅读下面的短文,掌握其大意,然后从短文后各题所给的A、B、C、D四个选项中,选择最佳选项。
?One afternoon, in Paris, I took a trip to an art museum while waiting for my husband to finish a business meeting. I was looking forward to a 31 view (看) of some great paintings of excellent artists.A young couple looking at the paintings in front of me were 32 non-stop. I 33 them a moment and decided she was doing all the talking. In fact, I was 34 at this man for putting up with her everlasting speech. Bored by their 35 , I moved on. I met them several times as I moved through those rooms of art. Each time I heard her voice, I moved 36 at once.I was standing at the museum 37 shop buying some cards when the couple walked to the exit (出口).“He’s a 38 man,” said the shop assistant. “Most of us would give up if we were blinded at such a young age. But he and his wife come in whenever there’s a new art show.”It 39 the non-stop talk! A sudden sense of 40 came to my heart for what I was thinking just now. “But what does he get out of the 41 ” I asked. “His wife describes each painting so he can see it in his 42 .”At that moment I realized what is patience, courage and 43 . I saw the patience of a young wife describing paintings to a person who can’t see and courage of a husban d who would not 44 blindness to change his love towards art. And I felt the love 45 by the two as I watched them walking away holding each other’s hands.31. A. quick B. quiet C. busy D. clear32. A. talking B. shouting C. running D. calling33. A. saw B. discovered C. watched D. know34. A. surprised B. glad C. disappointed D. angry35. A. words B. actions C. looks D. noise·36. A. away B. down C. up D. in37. A. fruit B. food C. gift D. flower38. A. blind B. brave C. good D. sad39. A. spoke B. included C. explained D. supported40. A. joy B. courage C. shame D. pleasure41. A. card B. shop C. museum D. art42. A. head B. eyes C. glasses D. ears43. A. care B. patience C. love D. courage44. A. help B. protect C. agree D. allow45. A. spared B. shared C. treated D. preferred]四、阅读理解(共15小题,计30分)阅读下面的短文,然后从每小题A、B、C、D四个选项中选出能回答所提问题或完成所给句子的最佳答案。