2019年哈尔滨市2019年香坊区初中毕业学年调研测试(一)
黑龙江省哈尔滨市2019年初中毕业学年调研测试语文试题及答案
哈尔滨市2019年初中毕业学年调研测试语文试卷考生须知:1.本试卷满分为120分,考试时间为120分钟。
2.答题前,考生先将自己的“姓名”、“考号”、“考场”、“座位号”在答题卡上填写清楚,将“条形码”准确粘贴在条形码区域内。
3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题纸上答题无效。
4.选择题必须使用2B铅笔填涂:非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。
5.保持卡面整洁,不要折叠、不要弄脏、弄皱,不准使用涂改液、刮纸刀。
一、积累与运用(25分)1.(3分)下列词语中加点字的注音完全正确的一项是………………………………()A.锡箔.(bó)家醅.(bèi)鸡毛掸.(dǎn)子B.扶掖.(yē)鄙.(bǐ)夷周道如砥.(dǐ)C.拆.(cāi)散诘.责(jié)踌躇.满志(chú)D.蠕.动(rú) 蓦.(mò)然囊.萤映雪(nánɡ)2.(3分)下列词语中没有错别字的一项是……………………………………………()A.墨守凛冽脱泥带水B.笼罩喑哑辩伪去妄C.拮据枘凿连声诺诺D.云翳希冀枕弋待旦3.(3分)下面句子没有语病的一项是…………………………………………………()A. 改革开放以来,我国基础教育取得了辉煌成就,基础教育课程建设也取得了显著成绩。
B.这篇小说以某滨海小城的蟹市为背景,讲述了一个小姑娘和两个买蟹人,塑造了三个形象鲜明的人物。
C.此后,在漫长的历史演进过程中,他们在黄河形成的冲击平原上,不断提炼适应自然的能力,发展农业文明,使黄河流域逐渐成为古代中国经济、文化和政治的中心。
D.他的学习成绩不仅在全校拔尖,在班级也名列前茅。
4.(3分)下面名著中的人物和情节对应不正确的一项是……………………………()A.格列佛——小人国被俘(《格列佛游记》第一卷第一章)B.简·爱——躲在窗帘后看书(《简·爱》第一章)C.甫志高——沙坪坝开书店(《红岩》第一章)D.高太尉——龙虎山误走妖魔(《水浒传》第一回)5.(3分)结合语境对画线句的意思理解正确的一项是………………………………()今年“两会”中国政协记者会上,南华早报记者问发言人:“我们注意到现在外面有很多关于前中央政治局委员周永康的一些消息和报道,我不知道发言人对这个事情有没有什么可以透露的?” (发言人沉默数秒,全场一片笑声。
2019年哈尔滨市初中中考模拟试题一理化综合试卷
2019年哈尔滨市初中升学考试模试题(一)物理试卷参考答案及评分标准一:选择题36. 不可再生比热容37. 电磁波都用到了比值定义法(其他合理说法也可)38. 电流发送电子邮件(聊天)39. 乙、丁惯性40. 24 机械电41. 6.7×108 上浮一些 42. 6.72×105 56043. <<44. 2 4.845. 20 6046.47.48.(1)光的反射定律(2)无法通过平面镜看到后面的蜡烛B,无法确定蜡烛像的位置将平面镜换成镀膜的薄玻璃板(3)玻璃板没有竖直放置在水平桌面上(4)平面镜成像时像和物体大小相等(5)用刻度尺测出AA,BB,CC,到玻璃板的距离,进行比较(或用刻度尺AA,BB,CC,向玻璃板做垂直,观察AA,、BB,、CC,的垂足是否重合,并用刻度尺测出对应的距离比较是否相等)49.(1)达到右(2)未挂钩码前调解杠杆在水平位置平衡的(3)3 (4)1.8 变大50.(1)如图(2)右(3)0.65(4)小灯泡的发光情况于实际功率有关,且灯泡的实际功率越大,灯泡越亮(5)测量额定电压为2.5V的小灯泡在正常工作时的电阻51. (1)笔记本电脑电池容量:3000mAh,平均电流为Ⅰ=1.5A=1500mA,工作时间:t==2h;(2)笔记本电脑电池充满电后能量:W=UIt=15V×3A×3600s=162000J=0.045kW•h,因为0.045kW•h<0.16kW•h,所以该笔记本电脑能带上民航飞机。
(3)焦耳定律(电流的热效应);B。
(以上答案仅供参考,如有其它合理答案可以酌情给分)2019年哈尔滨市初中升学考试模试题(一)化学试卷参考答案及评分标准一.选择题1-5 BDBAA 6-10 DACCA 11-15 DDCDB二.非选择题28.(5分) (1) 化学,机械,热值高(2) B(3)4H2O+3Fe高温Fe3O4+4H2 , +1价变为0价29.(5分)(1)调节新陈代谢;糖类(2)A(3)NH4NO3(4)侯德榜30.(4分)(1)补1个氯分子(2)(3)①化合物(或氧化物)②物质均由同种分子构成,分子由不同种原子构成(或分子由两种原子构成,其中一种为氧原子)。
哈尔滨市香坊区2019届毕业学年综测(一)数学试题含答案
∵AF=AB ∴AF=BD……………………………………………………........………………1 分 ∵∠BDC=∠AEC ∴AF//BD ∴四边形 ABDF 是平行四边形…………………………………………………1 分 ∵AB=AF ∴四边形 ABCD 是菱形…………………………………………………………1 分
在 Rt△ABC 中,∵AC=4,AB=3, ∴BC=
∵点 D 是 BC 的中点 ∴AD 是直角三角形 ABC 的中线 ∴AD=DC=DB= , ∵S△ABC= BC⋅ AH= AB⋅ AC, ∴AH= ,
∵AE=AB,DE=DB=DC, ∴AD 垂直平分线段 BE,△BCE 是直角三角形, ∵ AD⋅ BO= BD⋅ AH, ∴OB= , ,
解得
……………………………………………00 ………………………………………………………………………………….……2 分 y 80
答:购买一套 A 套装文具 100 元,一套 B 套装需要 80 元. (2)解设购买 A 套装 a 套,根据题意得
100a 80(60 a ) 5240 ………………………………………………………….………2 分
(2 )△ABD,△BCD,△ADC,△FAD,△ADE(答对 2 个给 1 分,多答对一个再加 1 分,以此类推)…………………………………………………………………………..…4 分
25. (1)解设购买一套 A 套装文具 x 元,一套 B 套装需要 y 元.根据题意,得.
x y 20 5 x 4 y 820
精品解析:【区级联考】黑龙江省哈尔滨市香坊区2019届九年级调研测试(一)语文试题(解析版)
2019年香坊区初中毕业学年调研测试(一)语文试题考生须知:1.本试卷满分为120分,考试时间为120分钟。
2.答题前,考生先将自己的“姓名”、“准考证号码”在答题卡上填写清楚,将条形码准确粘贴在条形码区域内。
3.考生作答时,请按照题号顺序在答题卡各题目的区域内作答,超出答题卡区域书写的答案无效;在草稿纸、试题纸上答题无效。
4.选择题必须用2B铅笔在答题卡上填涂,非选择题用黑色字迹书写笔在答题卡上作答,否则无效。
5.保持卡面清洁,不要析叠、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。
一、积累与运用(25分)(1-6题各3分;7题每空1分,共7分)1.下列词语中加点字的注音和书写完全正确的一项是()A. 狩.猎(shǒu)蒙昧.(mèi)深恶.痛疾(wù)B. 羸.弱(léi)缅.怀(miǎn)前仆.后继(pū)C. 胆怯.(qiè)校.补(jiào)不醒.人事(xǐng)D. 亵渎.(dú)抖擞.(shǒu)抑扬顿挫.(cuò)【答案】B【解析】【详解】关于字音,要求学生平时的学习中注意字音的识记和积累,特别是多音字。
关于字形,要求学生平时的学习中注意字形的识记和积累,特别是形近字。
辨析字形既要注意平时的积累,也要联系整个词语的意思。
B项正确。
ACD三项修改为:A.狩.猎(shòu);C.不省.人事;D.抖擞.(sǒu)。
2.对病句的修改不正确的一项是()A. 农科院的技术人员为幸福乡的农民建造并设计了新型阳光大棚。
将“建造”和“设计”调换位置。
B. 学生每天花上大约两小时左右的时间玩手机会影响学习。
删去“大约”或者“左右”。
C. 阅读小说时,我们要注意体会它跌宕起伏的情节和丰富细腻的情感。
将“体会”改为“梳理”。
D. 梵·高在绘画中经常使用一种鲜明的黄色,被视为他的“艺术签名”之一。
在“被视为”前加“这种黄色”。
黑龙江省哈尔滨市香坊区2019年中考一模物理试卷及答案 (1)
哈尔滨市香坊区2019年中考一模物理试卷16.我国北方冬天室内“暖气”取暖,通常用水作为运输能量的介质,主要是因为水的( )A.密度大B.比热容大C.凝固点低D.沸点高17.汽车在平直公路上匀速行驶时,下列属于平衡力的是( )A.汽车受到的牵引力和阻力B.汽车受到的支持力和地面受到的压力C.汽车受到的牵引力和重力D.汽车受到的牵引力和地面受到的压力18.如图的几个现象中,属于减小压强的是( )19.关于平面镜成像特点及其实验探究,下列说法不正确的是( )A.物体距离平面镜越近所成的像越大B.用玻璃板代替平面镜便于确定像的位置C.蜡烛靠近玻璃板的同时像也靠近玻璃板D.使用光屏可以探究平面镜所成像的虚实20.关于能源的说法,正确的是( )A.水能、煤、石油属于可再生能源B.地球上的风能、谁能、核能实际上都来自太阳能C.煤、石油、柴火属于污染型能源D.核电站是利用核聚变释放的能量来发电的21.如图所示的四件物品展示了我国古代劳动人民的智慧成果,对其中所涉及的物理知识,下列说法中不正确的是( )A.甲图:孔明灯上升,是因为受到的浮力大于重力B.乙图:紫砂壶属于连通器C.丙图:司南勺柄指南,是因为南面有地磁的南极D.丁图:正在发声的编钟一定在振动22.如图所示是妈妈为小明同学准备的营养早餐,下列说法不正确的是( )A.面包机内的电热丝是利用电流热效应工作的B.用吸管吸牛奶是利用了大气压强C.面包机工作时与厨房里的照明灯是并联的D.鸡蛋磕在桌面上蛋壳破裂,是因为桌面对鸡蛋的力大于鸡蛋对桌面的力23.如图所示的实验现象解释的物理原理或规律与所对应的应用技术不正确的是( )24.以下有关家庭用电方面的说法正确的是( )A.短路是家庭电路中电流过大的唯一原因B.开关要与所控制的用电器串联,且要接于相线与用电器之间A.蚊子的口器很尖B.篆刻刀很锋利C.破窗锤前段很尖D.铁轨铺在枕木上甲 乙 丙 丁A B C DC.漏电保护器只是在漏电或过载时起保护作用D.验电笔的作用是仅用来辨别相线和中性线25.下面说法中正确的是()A.2kg水温度升高10℃,需要吸收8.4×104J的热量B.扩散现象只能说明分子间有间隔C.由于水的比热容大,故内陆城市比沿海城市早晚温差小D.天然气热值为3×107J/m3,以上是每千克天然气完全燃烧放出的热量是3×107J26.下面关于人的一些活动,说法不正确的是()A.人骑自行车时将身体内的一部分化学能转化为动能B.人将标枪投出,标枪离手后由于惯性而继续向前飞行C.体积为0.06m3的人浸没在水中时,受到水的浮力为600ND.质量60kg的人双脚着地面积0.03m2,则此人行走于水平地面对地面压强为20000Pa27.甲、乙两灯的额定电压均为6V,测得两灯的电流与电压关系图像如图所示。
【黑龙江省】哈尔滨市香坊区2019年初中毕业学年综合测试(一)语文试卷
2019年香坊区初中毕业学年综合测试(一)语文试题考生须知:1.本试卷满分为120分。
考试时间为120分钟。
2.答题前,考生先将自己的“姓名”、“考号”、“考场”、“座位号”在答题卡上填写清楚,将“条形码”准确粘贴在条形码区域内。
3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题纸上答题无效。
4、选择题必须使用2B铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。
5、保持卡面整洁,不要折叠、不要异脏、弄皱,不准使用涂改液、刮纸刀。
一、积累与运用。
(25分)1. (3分)下列词语中加点字注音和书写完全正确的一项是( )A.诘.贵(jié) 称.职(chěng) 油.然而生(yóu)B.亘.古(gěn) 秘.诀(mì) 契.而不舍(qiě)C.感慨.(kǎi) 缄.默(jiān) 风雪载.途(zài)D.推祟.(cóng) 告罄.(qìng) 与日俱.增(jù)2. (3分)对病句的修改不正确的一项是( )A.生死关头,刘传健带领机组成员正确处置、临危不乱,确保了机上旅客生命安全。
(“正确处置”与”临危不乱"调换位置)B.随着电影《流浪地球》的热映,使全国掀起了一股科幻电影热潮。
(删去“随着”或者“使”)C.故宫举办“贺岁迎祥——紫禁城里过大年”展览,还原了清代皇宫过年的热闹。
(将“还原”改为“恢复”)D.我国的艺术珍品很多,莫高窟中精美的壁画就是仅有的一个。
(将“仅有”改为“其中”)3.(3分)《三国演义》中与诸葛亮《出师表》“五月波泸,深入不毛”一句相关的情节是( )A.七擒孟获B.赤壁之战C.火烧连营D.水淹七军4. (3分) 对下面这首诗歌理解不正确的一项是( )钱塘湖春行唐代白居易孤山寺北贾亭西,水面初平云脚低。
几处早鸳争暖树,谁家新燕啄春泥。
_黑龙江省哈尔滨市香坊区2019届九年级语文调研测试试卷(一)(含答案解析)
第1页,总18页黑龙江省哈尔滨市香坊区2019届九年级语文调研测试试卷(一)考试时间:**分钟 满分:**分姓名:____________班级:____________学号:___________注意事项:1、填写答题卡的内容用2B铅笔填写2、提前 15 分钟收取答题卡第Ⅰ卷 客观题第Ⅰ卷的注释一、单选题(共6题)1. 下列词语中划线字的注音和书写完全正确的一项是( ) A . 狩(shǒu )猎 蒙昧(mèi ) 深恶(wù)痛疾 B . 羸(léi )弱 缅(miǎn )怀 前仆(pū)后继 C . 胆怯(qiè) 校(jiào )补 不醒(xǐng )人事 D . 亵渎(dú) 抖擞(shǒu ) 抑扬顿挫(cuò)2. 对病句的修改不正确的一项是( )A . 农科院的技术人员为幸福乡的农民建造并设计了新型阳光大棚。
将“建造”和“设计”调换位置。
B . 学生每天花上大约两小时左右的时间玩手机会影响学习。
删去“大约”或者“左右”。
C . 阅读小说时,我们要注意体会它跌宕起伏的情节和丰富细腻的情感。
将“体会”改为“梳理”。
D . 梵·高在绘画中经常使用一种鲜明的黄色,被视为他的“艺术签名”之一。
在“被视为”前加“这种黄色”。
3. 下列名著中人物和情节对应不正确的一项是( )A . 张飞——大意失荆州(《三国演义》)B . 宋江——大破连环马(《水浒传》)C . 孙悟空——计盗紫金铃(《西游记》)D . 许云峰——保护李敬原(《红岩》)4. 对下面诗歌理解有误的一项是( )酬乐天扬州初逢席上见赠答案第2页,总18页刘禹锡巴山楚水凄凉地,二十三年弃置身。
怀旧空吟闻笛赋,到乡翻似烂柯人。
沉舟侧畔千帆过,病树前头万木春。
今日听君歌一曲,暂凭杯酒长精神。
A . 首联诗人对自己被贬谪、遭弃置的境遇表达了无限辛酸和愤懑不平。
黑龙江哈尔滨2019年初中毕业生学业模拟考试
黑龙江省哈尔滨市2019年初中毕业生学业模拟考试(一)物理试题一.多选题(满分40分,每小题2分)1.在用刻度尺测量物体长度时,下列要求中做法正确的是()A.测量时必须从刻度尺的零刻度线量起B.读数时估读的位数越多测量结果越准确C.读数时视线应垂直于刻度尺D.记录测量结果时必须在数字后面注明单位2.对诗句“小小竹排江中游,巍巍青山两岸走”的描述中正确的是()A.前一句是以竹排为参照物来表示青山在运动B.前一句是以青山为参照物来表示竹排在运动C.后一句是以青山为参照物来表示两岸在运动D.后一句是以两岸为参照物来表示青山在运动3.如图所示是某物体做直线运动时的路程随时间变化的图象,由图象判断下列说法正确的是()A.5s时,物体通过的路程为2.5mB.整个20s时间内,物体的平均速度为0.2m/sC.物体在20s内都做匀速直线适动D.物体在0﹣5s时间内的速度比10~20s内的速度小4.质量相同的甲、乙两物体,分别在竖直向上的拉力作用下,从同一位置同时向上运动,两物体运动的s﹣t图象如图所示,下列判断正确的是()A.第4s时两者相距16mB.甲受到的拉力比乙大C.甲做速度为4m/s的匀速运动D.以甲为参照物乙竖直向下运动5.关于声现象,下列说法正确的是()A.声音可以在真空中传播B.人们根据音调辨别不同乐器发出的声音C.声音由物体的振动产生的D.声音只能传递信息,不能传递能量6.下面属于光的折射现象的是()A.站在岸上看到水中的鱼B.在平静的水面看到蓝天白云C.隔着篝火看到变形的“物体”D.透过露珠看到树叶的叶脉被放大7.下面关于光现象的说法中正确的是()A.光反射时,入射角增加多少度,反射角也随之增加多少度B.入射光线与反射光线不可能重合C.光从一种介质射入另一种介质,传播方向一定发生改变D.光从空气斜射入水中时,折射角大于入射角8.小明在森林公园里玩时,看到一个丢弃的望料瓶,她想若瓶里盛有水后容易引起火灾,其主要原因是盛有水的瓶相当于一个()A.凸透镜,对光线有发散作用B.凸透镜,对光线有会聚作用C.凹透镜,对光线有会聚作用D.凹透镜,对光线有发散作用9.取出放在冰箱中被冷冻的金属块,擦干后放一会儿,其表面会变湿。
哈尔滨市2019年初中毕业学年调研测试数学试题及答案
哈尔滨市2018年初中毕业学年调研测试数学试卷第1卷选择题(共30分)一、选择题(每小题3分.共计30分)1在2.5,-2.5.0,3这四个数巾,最小的数是( )(A)2 .5 (B)0 (C)-2 5 (D)32下列计算正确的是( ).(A)a+a=a2 (B)(2a)3=6a3 (C)(a-1)2=a2-1 (D)(-ab)5÷(-ab)2=-a3b33下列图形中.是中心对称图形.但不是轴对称图形的是( )4已知抛物线的解析式为v=(x-2)2+l,则抛物线的顶点坐标是( )(A)(-2,1) (B)(2,1) (C)(2,-l) (D)(1,2)5如图是某个几何体的三视用.则陵几何体足( )(A)长方体 (B)正方体 (C)圆柱 (D)三棱柱6下列各点中,在反比例函数y=8x图象上的是( ).(A)(-1,8) (B)(2,4) (C)(1,7) (D)(-2,4)7.如图,在菱形ABCD中,对角线AC、BD相交于点O.点E为边AB 的中点,且OE=2,则菱形ABCD的周长为( ).(A)32 (B)24 (C)16 (D)88如图,矩形纸片ABCD中,AD=8.折叠纸片使AB边与对角线AC 重合,点B落在点F处,折痕为AE,且EF=3,则AB的长为( )(A)3 (B)4 (C)5 (D)69.某校决定从三名男生和两名女生中选出两名同学担任校艺术节文艺演出专场的主持人.则选出的恰为一男一女的概率是( )(A)15(B)13(C)35(D)2510.甲乙两人在一个400米的环形跑道上练习跑步.两人同时、同向出发,两人之间的距离s(单位:米)与两人跑步的时问t(单位:分)之间的函数关系图象如图所示.下列四种说法:①l5分时两人之间距离为50米;②跑步过程中两人休息了5分;③20~30分之间一个人的速度始终是另一个人速度的2倍;③40分时一个人比另一个人多跑了400米.其中一定正确的个数是( ) (A)1个 (B)2个 (C)3个 (D)4个第ll 卷 非选择题(共90分) 二、填空题(每小题3分.共计30分)11.2018年伦敦奥运会火炬传递路线全长约为l2 800千米.数字12800用科学记数法表示为 .12.= . 13把多项式2228m n -分解因式的结果是 .14.不等式组2x-1<0,x+1>0的解集是 ..15.如同,在△ABC 中.∠B=900,∠BAC=300.AB=9cm ,D 是BC 延长 线上一点.且AC=DC .则AD= cm.16.已知母线长为2的圆锥的侧面展开图是一个圆心角为900的扇形. 则此扇形的面积为 . (结果保留π).17.某超市今年一月份的营业额为50万元.三月份的营业额为72万 元.则二、三两个月平均每月营业额的增长率是 .18.如图,AB 是⊙0的直径,AC 是弦.∠BAC=400.过圆心O 作 OD ⊥AC 交AC 于点D .连接DC .则∠DCA= 度.19.在△ABC 中,AB=4,BC=6.△ABC 的面积为.则△ABC 的 度数为 .度.20.如图,在△ABC 与△AEF 中,∠AFE=900,AB=,AE=AC ,延长FA 交BC 于点D ,若∠ADC=∠CAE .则EF 的长为 .三、解答题(其中21—24题各6分.25~26题各8分.27~28题各l0分.共计60分) 21.(本题6分) 先化简,再求代数式2121()111a a a a --÷+-+的值,其中tan 602sin 30a =+22 (本题6分1如图.在每个小正方形的边长均为1个单位长度的方格纸中有 一个△ABC ,△ABC 的三个顶点均与小正方形的顶点重台(1)在图中画线段AD .使AD ∥BC(点D 在小正方形的顶点上); (2)连接CD .请直接写出四边形ABCD 的周长.23.(本题6分)为提高返乡农民工再就业能力.某地劳动和社会保障部门对400名返乡农民工进行了某项专业技能培训为了解培训的效果.培训结束后随机抽取了部分参加培训人员进行技能测试.测试结果划分成“不合格”、“合格”、“良好“、“优秀”四个等级。
哈尔滨市香坊区2019年八年级下期末调研测试数学试卷及答案
第6题图OEDCBA哈尔滨市香坊区2019年八年级下期末调研测试数学试卷及答案2—学年度下学期期末调研测试八年级数学试卷考生须知:本试卷分为第Ⅰ卷和第Ⅱ卷两部分. 第Ⅰ卷为选择题,满分为30分;第Ⅱ卷为填空题和选择题,满分为90分.本试卷共28道题,满分120分,考试时间为120分钟. 题号一二三总分得分2122232425262728第Ⅰ卷选择题(共30分)一、单项选择题(每小题3分,共30分) 1.下列各式中最简二次根式为( )(A)3(B)21x(C)0.7(D )132.如果x=-3是方程230x mx 的一个根,那么m 的值是( )(A)一4 (B)4 (C)3 (D)-3 3.下列计算正确的是( ) (A)235(B)236(C)84(D)2(3)34.关于x 的一元二次方程2230x x 的根的情况是( ) (A)方程没有实数根 (B)方程有两个相等的实数根 (C)方程有两个不相等的实数根 (D)以上答案都不对5.将方程2410x x 化成2()x m n 的形式是( )(A)21(1)2x (B)21(21)2x (C)2(1)0x (D)2(2)3x6.如图所示,□ABCD 的周长为l6cm ,对角线AC 与BD 相交于点O ,OEAC 交AD 于E ,连接CE,则ADCE 的周长为( )(A)4cm (B)6cm (C)8cm (D)10cm7.在一幅长90cm ,宽40cm 的风景画的四周的外边镶宽度相同的金色纸边,制成一幅挂图,使风景画的面积是整个挂图面积的58%,设金色纸边的宽度为xcm ,则可列方程为( ) (A)(90+x)(40+x)×58%=90x40 (B)(90+x)(40+2x)×58%=90x40(C)(90+2x)(40+x)×58%=90x40 (D)(90+2x)(40+2x)×58%=90x40得分第10题图HOF E DCBAE DCBA第15题图FEDCBA8.关于反比例函数3yx,下列说法中错误..的是( )(A)它的图象分布在一、三象限 (B)它的图象过点(-1,-3)(C)当x>0时,y 的值随x 的增大两增大 (D)当x<0时,y 的值随x 的增大而减小9.下列四个命题中假命题是( )(A)对角线互相垂直的平行四边形是菱形 (B)对角线相等的平行四边形是矩形(C)对角线互相垂直平分且相等的四边形是正方形 (D)对角线相等的四边形是平行四边形10.在矩形ABCD 中,AB=1,AD=3,AF 平分∠DAB ,过C 点作CE BD 于E ,延长AF 、EC 交于点H ,下列结论中:①AF=FH ;②80=BF ;③CA=C8;④BE=3ED ;正确的个数为( ) (A)1个 (B)2个 (C)3个 (D)4个第Ⅱ卷非选择题(共90分)二、填空题:(每小题3分,共计30分)11. 在函数31yx 中,自变量x 的取值范围是________.12.计算:925a a_______.13.一轮船以l6海里/时的速度从港口A 出发沿着北偏东60°的方向航行,另一轮船以l2海里/时的速度同时从港口A 出发沿着南偏东30°方向航行,离开港口2小时后两船相距_______ 海里.14.已知关于x 的方程2840xx 的两个根分别是a 和b ,则a+b=__________.15.如图,正方形ABCD 的对角线AC 是菱形AEFC 的一边,则∠FAB 等于_________ .16.利用一面墙(墙的长度为12m),其它三面用40m 长的篱笆,围成—个面积为l50㎡的长方形的场地,则此长方形的场地的长为 __________m .(规定长要大于宽)17.如图,梯形ABCD 中,AD ∥BC ,∠C=90°,且AB=AD ,连接BD ,过点A 作BD 的垂线,交BC 于E ,若EC=3cm ,CD= 4cm ,则梯形ABCD 的面积是_________cm 2得分第20题图PEDCBA第18题图第4个图第3个图第2个图第1个图18.如图所示,将—些相同的棋子按如图所示的规律摆放:第l 个图形有4个棋子,第2个图形有8个棋子,第3个图形有l2个棋子,第四个图形有l6个棋子……,依此规律,第lO个图形有_________个棋子.19.菱形ABCD中,∠A=60°,AB=6,点P 是菱形内一点,PB=PD=21,则AP 的长为_____.20.如图,正方形ABCD 的面积为l2,△ABE 是等边三角形,点E 在正方形ABCD 内,在对角线AC 上有一点P ,PD+PE 的和最小,则这个最小值为_______.三、解答题:(21~24题每题各6分,25、26题每题各8分,27、28题每题各10分,共计60分)21.(本题6分)计算(1)11(24)(6)28(2)(248327)622.(本题6分)解下列一元二次方程(1)2514x x(2)3(21)42x x x 23.(本题6分)图1,图2均为正方形网格,每个小正方形的边长均为l ,各个小正方形的顶点叫做格点,请在下面的网格中按要求分别画图,使得每个图形的顶点均在格点上. (1)画一个直角三角形,且三边长为5,25,5;(2)画一个边长为整数的等腰三角形,且面积等于l2.得分得分得分图①图②24.(本题6分)已知如图,矩形ABCD 中,点E 是BC 上一点,AE =AD ,DF ⊥AE 于F .求证:DF=DC .FEDCBA25.(本题8分)加工一种产品,需先将材料加热达到60℃后,再停止加热进行加工,设该材料温度为y﹙℃﹚,从加热开始计算的时间为x(分钟).据了解,该材料在加热时,温度y 是时间x 的一次函数,停止加热进行加工时,温度y 与时间x 成反比例关系(如图所示),己知该材料在加热前的温度为l5℃,加热5分钟后温度达到60℃. (1)分别求出将材料加热和加工时,y 与x 的函数关系式(不必写出自变量的取值范围); (2)根据工艺要求,当材料的温度低于l5℃时,必须停止加工,那么加工时间是多少分钟?26.(本题8分)某电脑公司年的各项经营收入为1500万元,该公司预计年经营收入要达到2160万元,设每年经营收入的年平均增长率相同。
黑龙江省哈尔滨市香坊区2019届九年级毕业综合测试(一)英语试题
黑龙江省哈尔滨市香坊区2019届九年级毕业综合测试(一)英语试题一、单选题(★★) 1 . My dear friend, your attitude today has ________ important effects on your success tomorrow. Come on, please.A. aB. anC. /(★★) 2 . —________ more and more foreigners coming to our country to learn Chinese?—Of course. Because of the fast development, many foreign countries pay more attention to China.A. will there beB. will be thereC. Are there going to have(★★) 3 . It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up.A. so thatB. becauseC. as soon as(★★) 4 . —Look at my stamps. How do you like them?—They are beautiful! You’ve go t a wonderful ________.A. introductionB. exhibitionC. collection(★★) 5 . China is the biggest market for instant noodles(方便面). It ________ be a snack for students, a meal on a train, or just for hungry workers.A. needB. canC. must(★★) 6 . Cho ice is life’s ________ gift. It is the ability to choose some actions from a set of things to achieve a goal.A. greaterB. greatestC. the greatest(★★) 7 . ________ air pollution, such as smog (雾霾), ________ our health, we should do something like wearing a mask (面罩).A. Stop, to hurtB. To stop, hurtingC. Stopping, to hurt(★★) 8 . —How long have you ________ Sanya in Hainan?—Half a month, and it is the most beautiful city that I’ve visited.A. been inB. gone toC. been to(★★) 9 . The world’s longest cross-sea bridge, the 55-km-long Hong Kong-Zhuhai-Macao Bridge (HZMB) ________ on Oct 24. The HZMB will make it much easier to travel between the three areas.A. opensB. was openC. opened(★★) 10 . —Do you know when we ________ our first simulate (模拟) exam?—Sorry, I have no idea. But when I ________ the news, I will let you know.A. will have, getB. have, will getC. will have, am getting(★★) 11 . —Well done! You did very well in the final exam. Could you please tell me ________? —Sure. I listened to the teacher carefully and did lots of exercises.A. which is the best way to improve my gradeB. how did you deal with to get the good marksC. what you did to get the good marks(★★) 12 . —How many friends of ________ can come to celebrate your birthday?—________, I think. They’re all preparing for the new term.A. you, No oneB. yours, NoneC. you, None(★★) 13 . Problems and worries are normal in life. When we have a lot of worries, someone advises us ________ our parents about them because they have more experience.A. talking toB. to talk toC. talk to(★★) 14 . —I called you last night, but there was no reply.—Oh, sorry. I ________ in the park at that time.A. was walkingB. walkedC. am walking(★★) 15 . Thanksgiving Day is a day for Western families and their friends to have a big dinner together, giving their thanks to God for what they have got. It is a traditional festival in ________. A. China B. America C. Japan(★★)16 . Do you often go to the theater? It’s a great place to enjoy the latest films with others. To be a good moviegoer(常看电影的人), you shouldn’t ________.①eat and drink noisily②put your feet on the back of the seats③be on time④use your phone or other mobile devices (移动设备).⑤stay quiet during the filmA. ②③④B. ①②④C. ①④⑤(★★) 17 . Li Ming is an active boy student and he always tries his best to make his life colorful though he is in Grade 9. The table below shows that he spends ________ minutes on after-class activities every week.Li Ming’s After-class ActivitiesWeekdays WeekendsReading books Riding a bike Running Ball games50 minutes100 minutes20 minutes/day30 minutes/dayA. 250B. 850C. 600(★★) 18 . Which pair of the words with the underlined letters has the same sound?A. abr oad c oachB. cl othes m onthC. d eaf h ealth(★★) 19 . In the following words, which underlined letter has a different sound from the others? A. atten tion B. condi tion C. ques tion(★★) 20 . Which word of the following has a different stress from the others?A. mirror.B. perform.C. medium.二、完型填空(★★) Do you know the Future Science Prize? On Saturday, it announced the 2018 winners in the______ of life science, physical science, and mathematics and computer.Nobody can get over difficulties easily. ______ doing research was hard, they still made it. C hina’s“Father of Hybrid Rice” Yuan Longping ______ the Life Science Prize with Zhang Qifa and Li Jiayang. They all have done pioneering ______ for the country. It includes some new kinds of rice with ______ production and quality(质量). Ma Dawei, Feng Xiaoming and Zhou Qilin received the Physical Science Prize for creative-contributions to the ______ of new catalysts and reactions(催化剂和反应). Lin Benjian got the Mathematics and Computer Science ______ expanding nanoscale integrated circuits (扩展纳米集成电路).The Fut ure Science Prize is known as China’s “Nobel Prize”. It rewards (奖励) ______ research that was finished in China and has an influence around the world. The prize ______ by a private organization of twelve Chinese businessmen instead of a public one. They hope more public attention can be paid to the country’s development of science.Scientific development is basic to a better China. This prize will help to make use of the top-computer science technology. What’s more, it encourages people ______ more scienti fic inventions by themselves. We are all more scientific inventions by themselves We are We are all more scientific inventions by themselves. We are hoping to see more changes in the coming years!根据短文内容,选择最佳答案。
哈尔滨市2019届初中毕业学年5月统一调研测试数学试题
哈尔滨市2019届初中毕业学年5月统一调研测试数学试题第Ⅰ卷选择题(共30分)(涂卡)一、选择题(每小题3分,共30分)1.2的相反数是()A.22- B.22D.22.下列运算中,正确的是( )A.43aaa=+ B.632aaa=⋅ C.632)(aa= D.5210aaa=÷3.观察下列图案,既是中心对称图形又是轴对称图形的是()A.B.C.D.4.在平面直角坐标系中,点O是坐标原点,点A是x轴正半轴上的一个动点,过A点作y轴的平行线交反比例函数y=x2(x>0)的图象于B点,当点A的横坐标逐渐增大时,△OAB的面积将会( )A.逐渐增大B.逐渐减小C.不变D.先增大后减小5.如图是由七个相同的小正方体堆成的物体,这个物体的俯视图是()6.某公司去年的利润(总产值—总支出)为200万元.今年总产值比去年增加了20%,总支出比去年减少了10%,今年的利润为780万元.如果去年的总产值x万元、总支出y 万元,则下列方程组正确的是A.⎩⎨⎧=--+=-780%)101(%)201(,200yxyxB.⎩⎨⎧=+--=-780%)101(%)201(,200yxyxC.⎩⎨⎧=-=-780%10%20,200yxyxD.⎩⎨⎧=---=-780%)101(%)201(,200yxyx7.在△ABC 中,∠A ,∠B 都是锐角,且23cos ,21sin ==B A ,则此三角形形状是( ) A.锐角三角形 B.直角三角形 C.钝角三角形 D.形状不能确定 8.如图在△ABC 中,DE ∥BC ,DF ∥AC不正确的是( )A.ECAEDB AD =B.EC AE BC DE =C.EC AE BF DE =D.ECAEHB EH = 9.如图,在边长为2的菱形ABCD 中,45B ∠=︒,AE 为BC 边上的高,将ABE △沿AE 所在直线翻折得'AB E △,'AB 与CD 边交于点F ,则'B F 的长度为( )A .1B .C .2D .210.小明为准备体育中考,每天早晨坚持锻炼,某天他慢跑到江边,休息一会后快跑回家,能大致反映小明离家的距离y (m )与时间x (s )的函数关系图象是( )二、填空题(每小题3分,共30分)11.哈南公共自行车的投用给平房人带来很多便利,受到居民的普遍欢迎,目前租车次数已经超过1019000次.将1019000用科学计数法表示为 . 12.函数y =中,自变量x 的取值范围是 . 13.计算:16÷2 = . 14.因式分解:322a a a ++= .第9题图BDFB'EABC15.如图,一张圆心角为45°的扇形纸板剪得一个边长为1的正方形,则扇形纸板的面积是 cm 2(结果保留π) 16.不等式组⎪⎩⎪⎨⎧->+≥-1230211x x 的正整数解是 .17.有两组卡片,第一组的三张卡片上分别写有数字3,4,5,第二组的三张卡片上分别写有数字1,3,5,现从每组卡片中各随机抽出一张,用抽取的第一组卡片上的数字减去抽取的第二组卡片上的数字,差为正数的概率为 . 18.⊙O 的半径为R ,点O 到直线l 的距离为d ,R ,d 是方程x 2﹣4x+m=0的两根,当直线l 与⊙O 相切时,m 的值为 _____ ____ .19.用直角边分别为6和8的两个直角三角形拼成一个平行四边形(非矩形),所得的平行四边形的周长是 . 20.如图,在△ABC 中,∠A=120°,点D 是BC 的中点,点E 是AB 上的一点,点F 是AC 上的一点,∠EDF=90°,且BE=2,FC=7,则EF= .三、解答题 (其中21 、22题各7分,23、24题各8分,25~27题各10分,共60分) 21.(本题7分) 先化简,再求值:xx x x x 1)11(÷--+,其中︒=30sin 2x +30tan 3°22.(本题7分)如图,方格纸中的每个小方格都是边长为1个单位的正方形,在建立平面直角坐标系后,△ABC的顶点均在格点上,点C的坐标为(5,1).①画出△ABC关于y轴对称的△A1B1C1,并写出点C1的坐标;②连结BC1,在坐标平面的格点上确定一个点P,使△B C1P是以B C1为底的等腰直角三角形,画出△B C1P,并写出所有P点的坐标.23.(本题8分)端午节快到了,某市共青团组织以“中学生最喜欢项节日活动”为主题题进行了简单的随机抽样调查,让学生从“郊外踏青、品尝美食、观赏电影、参观室馆”四项活动中选择一项,然后绘制出以下两幅不完整的统计图.请根据图中的信息,回答下列问题:(1)这次抽样调查中共调查了人;扇形统计图中郊外踏青部分的圆心角的度数是 ;(2)请补全条形统计图;(3)某市有中学生3万人,请估计选择郊外踏青的人数有多少?24.(本题8分)如图,四边形ABCD是平行四边形,BE、DF分别是∠ABC、∠ADC的平分线,且与对角线AC分别相交于点E、F.(1)求证:AE=CF(2)连结ED、FB,判断四边形BEDF是否是C平行四边形,说明理由.25.(本题10分)学校计划从商店购买同一品牌的钢笔和文具盒,已知购买一个文具盒比购买一个钢笔多用20元,若用400元购买文具盒和用160元购买钢笔,则购买文具盒的个数是购买钢笔个数的一半.(1)分别求出该品牌文具盒、钢笔的定价;(2)经商谈,商店给予学校购买一个该品牌文具盒赠送一个该品牌钢笔的优惠,如果学校需要钢笔的个数是文具盒个数的2倍还多8个,且学校购买文具盒和钢笔的总费用不超过670元,那么该学校最多可购买多少个该品牌文具盒?26.(本题10分)在⊙O 中,弦AB 、CD 相交于点E ,连接AC 、BC ,AC=BC ,AB=CD. (1)如图1,求证:BE 平分∠CBD ;(2)如图2,F 为BC 上一点,连接AF 交CD 于点G ,当∠FAB=21∠ACB 时,求证:AC=BD+2CF ;(3)如图3,在(2)的条件下,若S △ACF =S △CBD ,⊙O 的半径为63,求线段GD 的长.图1图2 图327.(本题10分)在平面直角坐标系中,抛物线a ax ax y 452+-=与x 轴交于A 、B (A 点在B 点的左侧)与y 轴交于点C .(1)如图1,连接AC 、BC ,若△ABC 的面积为3时,求抛物线的解析式;(2)如图2,点P 为第四象限抛物线上一点,连接PC ,若∠BCP=2∠ABC时,求点P 的横坐标;(3)如图3,在(2)的条件下,点F 在AP 上,过点P 作PH ⊥x 轴于H 点,点K 在PH 的延长线上,AK =KF ,∠KAH=∠FKH ,PF=a 24-,连接KB 并延长交抛物线于点Q ,求PQ 的长.图1图2 图3哈尔滨市2019届初中毕业学年5月统一调研测试数学试题答案一、选择题:1—5 CCDCC 6---10 ACBCA 二、填空题11. 610019.1⨯ 12.3≤x 且x 1≠ 13. 22 14. a(a+1)2 15.85 16. 1,2. 17. 9518. 4 19. 32或36 20.39三、解答题21.解:化简得原式=x-11………………….3分将︒=30sin 2x +30tan 3°=2333212=⨯+⨯…………2分 代入原式=1-…………2分22.(1)画图2分,C 1(-5,1)……1分(2)画图2分,(-1,-1)(-3,5)2分 23. (1) 1500 ……2分 108 °……2分 (2)图 ……1分(3)解:300001500450⨯=9000(人) ……2分 答:估计选择郊外踏青的人数有9000人. ……1分 24.(1) 证明: ∵四边形ABCD 是平行四边形,∴AB=CD ,∠ABC=∠CDA ,AB ∥CD ∴∠BAC=∠DCA ·······1分 ∵BE 、DF 分别是∠ABC 、∠ADC 的平分线,∴∠ABE=21∠ABC ,∠CDF=21∠ADC∴∠ABE=∠CDF ·······1分∴△ABE ≌△CDF (ASA) ······1分∴AE=CF ······1分(2)是平行四边形2分,过程2分25. 解:(1)设该品牌钢笔的定价为x 元,则文具盒的定价为(x +20)元.C由题意得:400x +20=160x ×12……3分解得:x =5经检验,x =5是原方程得解. ∴文具盒的定价x +20=25(元)答:设该品牌钢笔的定价为5元,则文具盒的定价为25元. ……2分 (2)设学校可以购买y 个该品牌文具盒.由题意得: 25y +5(2y +8-y )≤670 ……3分 解得:y ≤21答:该学校最多可购买 21个该品牌文具盒. ……2分26、答案:(1)证明:∵AB=CD ∴⌒AB=⌒CD∵ ⌒AB-⌒BD=⌒CD-⌒BD 即⌒BC=⌒AD (1)∵AC=BC ∴⌒AC=⌒BC∴⌒AC=⌒BC=⌒AD ………1分∴∠ABC=∠ABD ∴BE平分∠CBD ………1分(2)证明:在线段BF 上取点H ,使FH=FC ,连接AH ,AD∵AC=BC ∴∠CAB=∠CBA∵在△ABC 中,∠CAB +∠CBA +∠ACB=180°∴∠CBA +21∠ACB=90°∵∠FAB=21∠ACB ∴∠FAB +∠CBA=90°∴∠AFB=90° ………1分∴AF ⊥CH ∵CF=FH∴AC=AH ∴∠ACB=∠AHC ∵A 、C 、B 、D 四点在⊙O 上 ∴∠ACB +∠ADB=180°∵∠AHC +∠AHB=180° ∴∠AHB=∠ADB ………1分 ∵∠ABC=∠ABD AB=AB∴△AHB ≌△ADB ∴BD=BH∵AC=BC=CF +FH +HB∴AC=BD +2CF ………1分(3) 解:过点C 作CK ⊥BD 于点K,作直径CM ,连接图1AM ,∵∠CBA=∠CAB=∠ABD, ∴AC ∥BD ∴∠CBK=∠ACB , ∠CKB=∠AFC,AC=BC ∴△AFC ≌△CKB,S △AFC =S △CKB =S △CBD ∴BD=BK=CF∵AC=BD +2CF, ∴AC=3CF=3BD ………1分 设BD=CF=k,则AC=BC=3k,BF=2K在Rt △ACF 中,由勾股定理得:AF=22K在Rt △AFB 中,tan ∠FBA=2=BFAF………1分 ∵CM 为⊙O 的直径 ∴∠CAM=90° ∵⌒AC=⌒AC ∴∠CMA=∠CBA在Rt △ACM 中,AC=3k,tan ∠CMA=2,CM=66∴AM=223k ,由勾股定理得:()()222662233=⎪⎭⎫⎝⎛+k k ∴k=4 ∴AC=12,CF=4,AF=28 ………1分 在Rt △ACF 中,tan ∠CAF=42=AF CF ,tan ∠ACD=2,AC=12 解三角形得:CG=3512在Rt △AFB 中,AF=28,FB=8由勾股定理得:AB=CD=38 ∴DG=3528………1分27.(1)当y =0时,a ax ax 4502+-= 解得4,121==x x ∴A (1,0) B (4,0) AB=3……………….1分由ABC S ∆=3 可得OC=2……….1分∴21-=a ,∴解析式为225212-+-=x x y (1)分(2)过点C 作CD ∥x 轴,过点P 作PD ⊥CD 于点D , ∴∠ABC=∠BCD ,∵∠BCP=2∠ABC ∴∠PCD=∠ABC …………………….1分 ∴ tan ∠ABC=tan ∠DCP设点P (t, a at at 452+-) DP=4a-(a at at 452+-)=at at 52+-∴CDDP OB OC = ……………….1分 tat at a 5442+-=- ∴t=6 ……………….1分 ∴点P 的横坐标为6(3) 过点F 作FG ⊥PK 于点G ,过点Q 作QN ⊥PK于点N , ∵AK =FK ∴∠KAF =∠KFA∵∠KAH=∠FKP ,∠PHA=90°∴∠HAP =∠HPA=45°点P 的横坐标为6时,y=10a∴-10a=5 a=21-…………….1分 在RT △PFG 中 PF=a 24-=22 ∴FG=2 由AK=KF ∠KAH=∠FKP △AKH ≌△KFG HK=FG=2 ∴点K (6,2)…………….1分 ∵BH=KH=2 ∴∠BKH=45°设点Q (t, 2-2521-2t t +) QN=6-t NK=2225212+-+t t =425212+-t t 由KN=QN 可得 6-t=425212+-t t 舍)(4,121=-=t t ∴Q (-1,-5)……….1分 ∴PQ ∥x 轴 ∴QP=7……….1分。
英语_2019年黑龙江省哈尔滨市香坊区中考英语一调试卷(含答案)
2019年黑龙江省哈尔滨市香坊区中考英语一调试卷一、单项选择(本题共20分,每小题1分)选择最佳答案.1. ﹣ ________ is a good way to show love and encouragement. So I want to tell you.﹣"Perfect! You've done a good job and you'll finish the task even better this time! "()A ResolutionB PraiseC Preparation2. The Heilongjiang River, one of the four largest rivers in China is 4,440 kilometers long and covers an area of ________.()A 184.3 squares kilometersB 184.3﹣square﹣kilometerC 184.3 square kilometers3. ﹣Have you ever been to the Palace Museum?﹣Yes, and I'd like to introduce some fascinating scenes ________ if you go there.()A to visitB for visitC visiting4. During Beijing two sessions(两会), it was suggested that school uniforms should be redesigned(重新设计). ________ traditional Chinese culture ________ better cloth need considering.()A Either, orB Both, andC Neither, nor5. ﹣﹣Mobile phones have touched every part of our life.﹣﹣I just wonder how ________ more mobile phones will be able to do in the future.()A lots ofB manyC much6. Most of the population in the village ________ for big cities.A s a result, big cities are becoming moreand more crowded.()A has been leftB is movingC have been away7. Write down main information while learning. It helps to remember things better when you ____time in reflecting.()A takeB spendC pay8. Happiness lives on the other side of your fear.The joy of life lives behind all the bad feelings_____ you put around your dreams.()A thatB whatC which9. The motto (座右铭) on my desk often reminds me _____my talents and abilities to struggle (奋斗) for my dream.()A of developingB developC to develop10. ﹣What do you think of your grandfather?﹣He is the best role model I have, and I will always ________ him.()A look forB look up toC look forward to11. ﹣ ________ everyone makes mistakes, you needn't take your fault too seriously.﹣ Thanks for your comfort (安慰).()A SinceB AlthoughC When12. ﹣Worries about the exam and the lack of sleep will drive me mad!﹣ Take it easy. Your best work only comes after your brain ________.()A will rest wellB rest wellC is well rested13. It's everyone's duty to protect our environment.And I do believe if all of us pull together,_____something we can do to improve our living condition.()A it must beB there must beC there must have14. ﹣How is Carla getting along with her English?﹣You wouldn't believe ________ these days.()A what a quick progress she was makingB what quick progress she's madeC how quickly she was progressing15. Australia lies to the south of the equator. The seasons there are opposite to ours. If you go to Sydneyin July, you'll meet the ________ season.()A summerB autumnC winter16. It's believed that travelling makes a full man. However, travelling with friends or travelling alone is aquestion. which of the following can help you decide to set out on your trip alone?()①It helps to improve your ability to solve problems.②You may feel lonely③It makes you learn to be responsible for e verything.④You'll get more freedom(自由) to do the things you like⑤You don' t have to worry about your safetyA ②③④B ①③④C ②④⑤17. A ticket for Franklin Park Zoo is required for each visitor who's two and older, If Mr. Green wants tobuy tickets online for his wife, his one﹣year﹣old son and his parents who are in their seventies, howmuch should he pay?()Note : Senior老人A ﹩63B ﹩45C ﹩7018. Which of the following words has the same sound as the underlined letter of the word"w________ste"?()A rel a tionB t a skC s a tisfy19. Which pair of the words with the underlined letters has different sounds?()A loca tion examina tionB ex change ex hibitionC tr ea sure spr ea d20. Which word of the following doesn't have the same stress as the others?()A SubjectB ProductC Request二、完形填空(本题共10分,每小题10分)21. I was reading a book in my chair in the living room(1)_______my son was watching a show on TV. Suddenly, I heard someone in the show shout out happily, "Go to your happy place!" I looked up and saw that my son was laughing.After hearing those words and seeing my son's happy face, I(2)_______all my happy places.When I was a little boy, my happy place was my mother's lap (大腿).I and(3)_______shared a piece of cake. When I was in elementary (小学) school, my happy placewas a tree.I could sit under it and watch the leaves(4)_______golden in the fall, when I was a teenager, my happy place was my bedroom. There I could lie on my bed and listen to my favorite songs.(5)_______a young man, my happy place was an old rocking (摇)chair. There I could hold my boy in my arms and rock him to sleep.When I got older, I realized that the happiest place was deep down in my own heart. It was there that I learned my happiness was in my own hands.When you have your own heart as your happy place, then your happy place is wherever you decide to(6)_______.When your happy place lives in your heart, you can share it with almost(7)_______you meet. When your happy place is the life you live, then you make the world around(8)_______a happier place as well.What about the happy places that you(9)_______over the past years? (10)_______your own happy place. Fill your heart with love. Fill your days with joy.(1)A whileB howeverC but(2)A thought twiceB thought hardC thought of(3)A two of usB we twoC both us(4)A turnB changeC grow(5)A LikeB AsC Including(6)A leaveB missC go(7)A everyoneB someoneC no one(8)A yoursB youC yourself(9)A hadB haveC have had(10)A CreateB InventC Search三、阅读理解(本题共20分,每小题5分)22. Some young soldiers (士兵) who had recently joined the army were being trained in modern ways of fighting in the s war their camp. One of the things they were shown was how an unarmed(没有装备的)man could take the enemy' s weapon (武器) away from him.First, two of their instructors (指导者)took a knife away from the other, using only his hands, and then he took a gun away from him in the same way.In the next lesson, the soldiers were trained to do something else. Before the new training began, the third instructor asked them a number of questions to see how well they had understood what they had been shown in the last lesson. One of the questions was this, "Well, you now know what an unarmed man can do against a man with a gun. Now you have a gun and now you are ________of a bridge for its safety. Suddenly, you see an armed enemy soldier coming towards you. What will you do? "A young soldier, Thomas, who had to answer this question thought carefully for a few seconds and then said, "Well, after what I have just seen, I think so that the armed enemy soldier can't take it away from me and kill me with it."根据短文内容选择最佳答案.(1)The underlined words "________" most probably mean________.A guardingB crossingC challenging.(2)The instructors were training the young soldiers________.A in the campB in the open airC on the bridge.(3)According to the passage, the young soldiers________.A were being trained in modern ways of living in the armyB were asked only one question to see how well they had understood what they had been shown in thelast lessonC were trained with the help of at least three instructors.(4)Which of the following is TRUE according to the passage?________A Two instructors trained the young soldiers by setting the example inperson. B Thomas volunteered to answer the instructors question. C Thomas answered the question after thinking carefully for a few minutes.(5)"________" can be the missing sentence in the passage.A I'll shoot at the enemy soldier at onceB I'll throw my gun away as quickly as Ican C I'll run away with the gun right away.23. Liu Cixin's WorksNote: Liu Cixin (1963﹣) : a Chinese science fiction novelist (小说家) & engineer*In series 系列(1)Time after Nova________.A was awarded (授奖) China Science Fiction Galaxy AwardB was published whenLiu Cixin was about 28 years old C was written in the nineteenth century.(2)________ and________ are short stories.A With Her Eyes, Time after NovaB Wandering Earth, the Three﹣BodyProblem C With Her Eyes, Wandering Earth.(3)From the information above we know Science Fiction World Magazine Press is an organization that has something with________.A actors and actressesB writersC engineers.(4)People had the chance to enjoy Liu Cixin's work at the cinema back________.A in 2019B in 2005C in 2015.(5)Which of the following is TRUE according to the passage?________A Liu Cixin is the first Chinese who won Hugo Award Best Novel Award.B Wandering Earth was shown to celebrate the start of the new year on January 1st in 2019.C With Her Eyes was written In series.24. Ken had worked in a steel factory for 30 years. Everything had been going well for the past few years.So when Ken walked out of his home last Friday morning, he had no idea what would happen that day.Ken started to work that morning in the same part of the factory as usual. And there wereno other people in that part. All of a sudden, Ken knocked a shelf (架子) and a pile of (一堆) steel began to fall. The next thing Ken knew was that 25,000 pounds of steel was on his legs. Ken couldn't help crying out. But there was no one around him, so he had to take out his shone and called 911,a telephone number for anything unexpected.It wasn't long before the police cars appeared in front of the factory.When the workers in other parts of the factory saw this,they rushed to the back to see what was going on.They were shocked when they saw Ken was under 25,000 pounds of steel.Ken was sent to the hospital in a rush. Both of his legs had to be cut above the knees.The following day, Ken's boss went to the hospital to see him. When he asked, "Ken, how are you?" Ken smiled and replied, "Well, I'm shorter than I was yesterday."This is really a different attitude towards life. We may not be able to control every situation,but we can control our attitude and how we deal with things.Ken's attitude towards life is a perfect example of this.根据短文内容判断正、误(注意:正确的填"A",错误的填"B")根据表格所提供的信息选择最佳答案.(1)_______Ken was the only person working in the factory last Friday.________(2)_______From the passage we know that if something is on fire, we can call 911 for help.________(3)_______Ken couldn't help crying out because his legs were under 25,000 pounds of steel.________(4)_______When in hospital, Ken was still in high spirits though he was badly hurt and couldn't speak.________(5)_______The workers in other parts of the factory realized something had happened when they saw one policecar appeared in front of the factor.________25. Compared with cars, bicycles truly have many advantages. Riding bikes not only does good to people's health but also makes it possible to move easily past heavy traffic.So, here comes James Starley, a British inventor and producer who is widely considered to be the father of the bicycle industry. His inventions and improvements made the bicycle available for wide spread.James Starley was born on April 21, 1831. In his early years, he worked in the Coventry Sewing Machine(缝纫机)Company.And there, Starley tried to work out improvements to the early sewing machines, and his own invention, "The European" really helped a lot.In 1868, Starley saw his first bicycle, a French velocipede (脚踏两轮车), weighing as much as 160 pounds. The two﹣wheeled, rider﹣propelled (人驱动的)wooden bicycle required the rider to use his own feet to move the bicycle along. In 1869, the Coventry Sewing Machine Company decided to produce bicycles based on a worker, RowleyB. Turner's suggestion. What Starley first managed to do is cut off part of the weight of the velocipedes. Then, he Vented the Coventry Model, and he won his place as the father of the modern bicycle. Next Starley invented the Ariel bicycle.In 1870, he went into business for himself. The Ariel, his lightweight all﹣metal bicycle was first sold in 1871, to be the first true bicycle. It was the first two﹣wheeled self﹣propelled bicycle.Later, Starley introduced what was to be his greatest contribution(贡献)to the bicycle development.His Tangent bicycle, introduced in 1874, made the wheels far stronger than earlier models.Putting all of the earlier advantages into one four﹣wheeledmachine, Starley next produced the Salvo which was believed to be his creative ________.Though auto(机动地) industry has been rapidly developed, bicycles are still playing an important role in people's daily transportation.根据短文内容选择最佳答案(1)The underlined word "masterpiece" in the passage means "________" in Chinese.A 杰作B 策划者C 推广.(2)________ was Starley's greatest contribution to the bicycle development.A The Coventry ModelB The Tangent bicycleC The salvo.(3)Starley's earliest aim (目标) to deal with bicycles was________.A to make the velocipedes lighter than beforeB to change the two﹣wheeled, rider﹣propelled wooden bicycle into a self﹣propelled oneC to produce a bicycle out of metal.(4)Which of the following is TRUE according to the passage?________A The Coventry Sewing Machine Company decided to produce bicycles because Starley was talented iin inventing bicycles.B Starley didn't invent the Ariel bicycle until he went into business for himself.C Starley made efforts to improve the early sewing machines and he made it..(5)The passage is mainly about________.A how bicycles have changed people's daily livesB how Starley invented and improved bicyclesC how many kinds of bicycles Starley invented.四、交际应用(本题共10分,每空1分)(A)从A-G选项中选出能填入空白处的最佳选项补全对话.(选项中有两项是多余的)26. A: My watch isn't working, Chris.(1)_______B: Let me see. I think there's a shop in the Electronics Building.A: Where is that?B:(2)_______Do you see the big glass office building near the business Bank through this window?That's the building.(3)_______ It's only a fifteen﹣minute walk.A: OK, thanks. Oh, and do you know when it's open?B: I think from 8: 30 a. m until 5: 30 p.m.(4)_______A:That's great!(5)_______B: No problem.(B)填入一个适当的词补全对话,每空一词.27. A: Hi, Jack, Long time no see. How is everything(1)________?B: My grandfather has been in hospital. I have been looking after him recently.A: Oh, I'm sorry to hear that. But what was he there(2)________?B:Well…he fell down the stairs(楼梯) three weeks ago.A: Really? But how did that(3)________?B: My grandmother asked him to buy some vegetables and fruit(4)________he wentdownstairs, because the floor was very slippery (滑的), he fell down.A: Can he stand on his feet now?B: Yes, he can move his leg. But(5)________still has to stay in hospital for two or three more days.A: I hope he will get better soon.B: Thanks a lot.五、任务性阅读(本题共20分,每空1分)先阅读(A)、(B)、(C)三篇短文,然后根据题目要求及所给语境完成下列五项任务.任务1:阅读短文(A),用方框中所给词或词组的正确形式填空,使文章通顺、连贯、合理.(每空只能填一个单词或一个短语,每个单词或短语限用一次)28.After I graduated from college, I finally found my job in a group home for mentally (精神上) disabled adults after my(1)________application (申请). We were required for the feeding, dressing and (2)________for our customers. It was a difficult job and I didn't look forward to(3)________to work each day.One of our customers was a young man who couldn't talk.(4)________, he would often act up(淘气). One day, when we were out walking, I suddenly felt something touch my fingers. The young man was trying to hold my hand. Instead of pushing it away, I took his hand and he even(5)________my arm happily.We walked along together and turned back home(6)________.Then,I saw there was a light shining in his eyes.At that moment,I saw the angelic(似天使的)spirit that lay in the young man (7)________. And it also took out the feeling of love hidden deep in my heart. He helped me to learn that being a (8)________person for my customers was not my responsibility but an honor. He was my greatest teacher in how to live and how to love.29. The Japanese school system (体系)is different from the rest of the world.Most schools have a three﹣term system with new school years starting every April. There are six grades in the elementary school (小学). Japan has one of the longest school daysin the world. Even after the school ends, children still have other homework to keep them busySchool holidays are six weeks long during the summer break and about two weeks long in whether the winter or the spring break.Every class has its own classroom. During elementary education, in most cases, one teacher teaches all of the subjects in each class. The number of the students in one class is usually under 40.Here are some interesting facts about Japanese schools: Nearly all junior high schools require their students to wear school uniforms; most students in Japan really feel happy in school; students spend 205 minutes on language class and 165 minutes on science class every week (in other countries, 215 and 200 minutes), but they spend more time on math class ﹣﹣ 235 minutes every week (in other countries, 218 minutes).任务2:阅读短文(B,根据英文释义及首字母提示拼写单词.(1)b________ a short period of time when you stop what you are doing and rest(2)r________ make sb do sth.任务3:阅读短文(B),进行同义句转换,每空一词.The number of the students in one class is usually under 40.The number of the students in one class is usually (3)________ (4)________ 40.任务4:根据短文(B)内容回答问题.(5)How many weeks do Japanese students have for their school holidays in a year?________(6)Do most students in Japan really feel happy in school?________(7)What class do Japanese students spend more time on?________任务5:根据短文(C)内容完成表格,每空一词.30. The American cowboy was a great hero through facts and stories.In history, the real cowboy was a simple farm worker on horseback. The work was dirty,tiring and not paid very well. Cow boys had to take of cows day and night. When they were alone with the cows, they often sang beautiful and peaceful songs to keep the animals calm and overcome their own fear.They were not well﹣educated, so they sang about their daily life in very simple words. Country Western music became popular first among cow hoys in the American west countryside.The cowboy quickly received popularity. Historians say that this was because the cowboy appeared during a time of change in American life. The cowboy seemed free and more independent than other Americans.At present, the life of real cow boys has changed greatly.There is no need for the modern cowboys to sleep on the ground. Modern cowboys are paid well and are found in almost every state of the United States. Most modern cowboys do not make much money from raising cattle (牛). Many do it because they love the cowboy life.六、书面表达(本题共20分)31. 为了帮助学生们更好的了解高中的生活,学校邀请了六名高中生和同学们进行了交流.假如你是李明,请你根据以下信息,把你的收获和感想写给今天请假在家的 Francis.写作要点:1.九年级的学生和六名高中生进行了面对面的交流.2.交流的内容;(1)同学们表达了对高中生活的向往,并提出了很多问题(2)高中生介绍了初、高中的不同,并分享了他们在高中学习的经验.(3)大家针对如何选择高考的考试学科( subject for college examination),发表了个人的看法.3.你的观点是:我们应该根据自己的兴趣选择考试学科,并说明理由写作要求:1.不得使用真实姓名、地名和学校名.2.可适当加入细节,使内容充实,行文连贯.3.字迹工整、语言精练、表达准确、条理清晰.4.至少80词.Dear Francis,What a pity that you missed the communication today!________.Best wishes!Yours,Li Ming2019年黑龙江省哈尔滨市香坊区中考英语一调试卷答案1. B2. C3. A4. B5. C6. A7. B8. A9. A10. B11. A12. C13. B14. B15. C16. B17. B18. A19. B20. C21. ACBABCABCA22. ABCAC23. CCBBA24. B,A,A,B,A25. ABABB26. G,D,B,A,E27. with you,for,happen,when,he28. fifth,caring,going,Normally,swang,in silence,himself,safe29. reak,equire,less,than,Eightweeks,Yes.,Math class.30. present,overcome,independence,necessary,raising31. Dear Francis,What a pity that you missed the communication today! (引出话题)Students of Grade nine had a face﹣to﹣face conversation with six high school students.(面对面的交流) Now I would like to tell you something about it.【高分句型一】First, students expressed their longing for high school life and asked manyquestions. Then, the high school students introduced the differences between middle school and high school. They also shared their learning experience. We expressed personal views about how to choose the subject for college examination.(交流的内容) I think we should choose the subject according to our own interests because only if we are interested in the subject can we learn it well.【高分句型二】 Do you think so?(我的观点)Best wishes.Yours,Li Ming。
黑龙江省哈尔滨市2019年初中毕业生学业模拟考试(一)
黑龙江省哈尔滨市2019年初中毕业生学业模拟考试(一)物理试题一.多选题(满分40分,每小题2分)1.在用刻度尺测量物体长度时,下列要求中做法正确的是()A.测量时必须从刻度尺的零刻度线量起B.读数时估读的位数越多测量结果越准确C.读数时视线应垂直于刻度尺D.记录测量结果时必须在数字后面注明单位2.对诗句“小小竹排江中游,巍巍青山两岸走”的描述中正确的是()A.前一句是以竹排为参照物来表示青山在运动B.前一句是以青山为参照物来表示竹排在运动C.后一句是以青山为参照物来表示两岸在运动D.后一句是以两岸为参照物来表示青山在运动3.如图所示是某物体做直线运动时的路程随时间变化的图象,由图象判断下列说法正确的是()A.5s时,物体通过的路程为2.5mB.整个20s时间内,物体的平均速度为0.2m/sC.物体在20s内都做匀速直线适动D.物体在0﹣5s时间内的速度比10~20s内的速度小4.质量相同的甲、乙两物体,分别在竖直向上的拉力作用下,从同一位置同时向上运动,两物体运动的s﹣t图象如图所示,下列判断正确的是()A.第4s时两者相距16mB.甲受到的拉力比乙大C.甲做速度为4m/s的匀速运动D.以甲为参照物乙竖直向下运动5.关于声现象,下列说法正确的是()A.声音可以在真空中传播B.人们根据音调辨别不同乐器发出的声音C.声音由物体的振动产生的D.声音只能传递信息,不能传递能量6.下面属于光的折射现象的是()A.站在岸上看到水中的鱼B.在平静的水面看到蓝天白云C.隔着篝火看到变形的“物体”D.透过露珠看到树叶的叶脉被放大7.下面关于光现象的说法中正确的是()A.光反射时,入射角增加多少度,反射角也随之增加多少度B.入射光线与反射光线不可能重合C.光从一种介质射入另一种介质,传播方向一定发生改变D.光从空气斜射入水中时,折射角大于入射角8.小明在森林公园里玩时,看到一个丢弃的望料瓶,她想若瓶里盛有水后容易引起火灾,其主要原因是盛有水的瓶相当于一个()A.凸透镜,对光线有发散作用B.凸透镜,对光线有会聚作用C.凹透镜,对光线有会聚作用D.凹透镜,对光线有发散作用9.取出放在冰箱中被冷冻的金属块,擦干后放一会儿,其表面会变湿。
黑龙江省哈尔滨市香坊区2019-2021年三年中考一模英语试卷分类汇编:完形填空
黑龙江省哈尔滨市香坊区2019-2021年三年中考一模英语试卷分类汇编完形填空2020-2021学年黑龙江省哈尔滨市香坊区初中毕业学年调研测试(一)英语试题二、完形填空(本题共10分, 每小题1分)Last week, my cousin stared kindergarten(幼儿园), and I wished her every__21__. But actually what I wish for her is failure. I believe that failure can be good for our learning process. Fist- time success is usually a fluke(侥幸). First-time failure, however, is supposed to be the _22__order of things.Failure means 23 we improve ourselves in working. In Africa they describe a good cook as" She who has broken many bowls. "Unless you've spent enough time in the kitchen and have broken a lot of bowls, probably you _24 a lot about cooking. I once had dinner with a group of cooks, and they all compared the knife wounds and bum scars(伤疤)with 25_. They knew how much credibility(可信)their failures gave them.My younger sister is a dancer. It took her three years to practice a show, and she did it success- fully for years. There was no_26_ for her to change it but she did anyway. She said she was no longer learning _27_and she was bored. And if she was bored, she couldn't play well. So she changed the act. She risked failure and great public embarrassment in order to fed her heart. For her, it was worth spending the time __28__from failure.Have you ever filed? If you haven't, I suggest you try it, as it will give you_29_experience. A failure is a valuable chance to learn new things. You__30_remember what you learn in failures better than what you learn in successes. It's not the end of the world. Actually, with luck, it is the beginning.根据短文内容, 选择最佳答案。
黑龙江省哈尔滨市香坊区2019-2020学年九年级下学期调研测试(一)数学试题(word无答案)
黑龙江省哈尔滨市香坊区2019-2020学年九年级下学期调研测试(一)数学试题(word无答案)一、单选题(★) 1 . 某天最高气温是2℃,最低气温是-11℃,则这天最高气温与最低气温的差是()A.-9℃B.9℃C.13℃D.-13℃(★) 2 . 下列运算正确的是()A.6a﹣5a=1B.a2∙a3=a5C.(a2)3=a5D.a6÷a3=a2(★) 3 . 下列图形中,既是轴对称图形又是中心对称图形的是()A.B.C.D.(★) 4 . 抛物线的顶点坐标是()A.B.C.D.(★) 5 . 如图是由几个相同的小正方体搭成的一个几何体,它的俯视图是()A.B.C.D.(★) 6 . 同时掷两个质地均匀的骰子,观察向上一面的点数,两个骰子的点数相同的概率是()A.B.C.D.(★★) 7 . 如图,△OAB绕点O逆时针旋转80°得到△OCD,若∠A=110°,∠D=40°,则∠α的度数是()A.30°B.40°C.50°D.60°(★★) 8 . 如图,⊙O是正方形ABCD的外接圆,点P在优弧上,则∠APB等于( )A.30°B.45°C.55°D.60°(★) 9 . 在菱形ABCD中,对角线BD=4 ,∠BAD=120°,则菱形ABCD的周长是()A.15B.16C.18D.20(★★) 10 . 小元步行从家去火车站,走到 6 分钟时,以同样的速度回家取物品,然后从家乘出租车赶往火车站,结果比预计步行时间提前了3 分钟.小元离家路程S(米)与时间t(分钟)之间的函数图象如图,从家到火车站路程是( )A.1300 米B.1400 米C.1600 米D.1500 米二、填空题(★) 11 . 将519000用科学记数法表示为__________.(★) 12 . 函数,其中自变量的取值范围是__________.(★) 13 . 计算:的结果为__________.(★) 14 . 不等式组的解集是__________.(★) 15 . 把多项式分解因式的结果是__________.(★) 16 . 一个扇形的弧长是,面积是,则这个扇形的圆心角是___度.(★★) 17 . 如图,在Rt△ABC 中,∠ACB=90°,AC=3,BC=4,以点 C 为圆心,CA 为半径的圆与 AB 交于点 D,则 AD 的长为_.(★) 18 . 据媒体报道,我国 2017 年公民出境旅游总人数 5 000 万人次,2019 年公民出境旅游总人数 7 200 万人次,则这两年我国公民出境旅游总人数的年平均增长率为___.(★★★★) 19 . 在平行四边形 ABCD 中,AE 平分∠BAD 交边 BC 于 E,DF 平分∠ADC 交边 BC 于 F,若 AD=11,EF=5,则 AB= ___ .三、解答题(★★★★) 20 . 如图,△ABC 为等腰直角三角形,∠ACB=90°,点 M 为 AB 边的中点,点 N为射线 AC 上一点,连接 BN,过点 C 作CD⊥BN 于点 D,连接 MD,作∠BNE=∠BNA,边EN 交射线 MD 于点 E,若 AB=20 ,MD=14 ,则 NE 的长为___.(★★) 21 . 先化简,再求代数式的值,其中 a=tan60°﹣6sin30°.(★) 22 . 如图所示,在10×6 的正方形网格中,每个小正方形的边长均为 1,线段 AB 的端点 A、B 均在小正方形的顶点上.(1)在图中画出以 AB 为一腰的等腰△ABC,点 C 在小正方形顶点上,△ABC 为钝角三角形,且△ABC 的面积为;(2)在图中画出以 AB 为斜边的直角三角形 ABD,点 D在小正方形的顶点上,且 AD>BD;(3)连接 CD,请你直接写出线段 CD 的长.(★★) 23 . 哈市某中学为了丰富校园文化生活.校学生会决定举办演讲、歌唱、绘画、舞蹈四项比赛,要求每位学生都参加.且只能参加一项比赛.围绕“你参赛的项目是什么.(只写一项)”的问题,校学生会在全校范围内随机抽取部分学生进行问卷调查.将调查问卷适当整理后绘制成如图所示的不完整的条形统计图.其中参加舞蹈比赛的人数与参加歌唱比赛的人数之比为1:3.请你根据以上信息回答下列问题: (1)通过计算补全条形统计图;(2)在这次调查中,一共抽取了多少名学生;(3)如果全校有680名学生,请你估计这680名学生中参加演讲比赛的学生有多少名.(★★) 24 . 已知,等边△ABC,点 E 在 BA 的延长线上,点 D 在 BC 上,且 ED=E A .(1)如图 1,求证:AE=DB ;(2)如图 2,将△BCE 绕点 C 顺时针旋转 60°至△ACF(点 B 、E 的对应点分别为点 A 、F ),连接 EB .在不添加任何辅助线的情况下,请直接写出图中四对线段,使每对线段长度之差等于 AB 的长.(★) 25 . 禹驰商店决定购进 A 、B 两种纪念品.若购进 A 种纪念品 8 件,B 种纪念品 3 件,需 950 元;若购进 A 种纪念品 5 件,B 种纪念品 6 件,需 800 元. (1)求购进 A 、B 两种纪念品每件各需多少元?(2)若禹驰商店决定购进这两种纪念品共 100 件,考虑市场需求和资金周转,用于购买这 100 件纪念品的资金不超过 7650 元,求禹驰商店至多购进 A 种纪念品多少件?(★★★★) 26 . 已知:四边形 ABCD 内接于⊙O,连接 AC 、BD ,∠BAD+2∠ACB=180°.(1)如图 1,求证:点 A 为弧 BD 的中点;(2)如图 2,点 E 为弦 BD 上一点,延长 BA 至点 F,使得 AF=AB,连接 FE 交 AD 于点 P,过点 P 作PH⊥AF 于点 H,AF=2AH+AP,求证:AH:AB=PE:BE;(3)在(2)的条件下,如图 3,连接 AE,并延长 AE 交⊙O 于点 M,连接 CM,并延长 CM交 AD 的延长线于点 N,连接 FD,∠MND=∠MED,DF=12﹒sin∠ACB,MN= ,求 AH 的长.(★★★★) 27 . 已知:在平面直角坐标系中,抛物线 y= ax 2 -2 ax+4( a<0) 交 x 轴于点 A、B,与 y 轴交于点 C,AB=6.(1)如图 1,求抛物线的解析式;(2)如图 2,点 R 为第一象限的抛物线上一点,分别连接 RB、RC,设△RBC 的面积为 s,点R 的横坐标为 t,求 s 与 t 的函数关系式;(3)在(2)的条件下,如图 3,点 D 在 x 轴的负半轴上,点 F 在 y 轴的正半轴上,点 E 为OB 上一点,点 P 为第一象限内一点,连接 PD、EF,PD 交 OC 于点 G,DG=EF,PD⊥EF,连接 PE,∠PEF=2∠PDE,连接 PB、PC,过点R 作RT⊥OB 于点 T,交 PC 于点 S,若点 P 在 BT的垂直平分线上,OB-TS= ,求点 R 的坐标.。
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2019年香坊区初中毕业学年调研测试(一)
数学试卷
一、选择题(每题3分,共计30分)
1.某日的最高气温为2℃,最低气温为-8℃,则这一天的最高气温比最低气温高( )
(A)-10℃ (B)-6℃ (C) 6 ℃ (D)10℃ 2.下列运算正确的是( )
(A) 32a a a -= (B)22a a a = (C) 23
6
()a a = (D)1025
a a a ÷=
3.下面四个图形中,不是中心对称图形的是( )
4.将抛物线y=x2向左平移2个单位,再向上平移1个单位,可得到抛物线( )
(A) 2
(2)1y x =++ (B)2
(2)1y x =-- (C)2
(2)1y x =-+ (D)2
(2)1y x =+-
2(2)1y x =++
5.下图中几何体的俯视图是( )
6.已知盒子里有2个黄色球和3个红色球,每个球除颜色外均相同,现从中任取一个球则取出红色球的概率是( ) (A) 15 (B) 25 (C)35 (D)310
7.反比例函数y=
x
m 3
+,当x>0时,y 随x 的增大而增大,那么m 的取值范围是( )
(A)m<3 (B) m>3 (C)m<-3 (D) m>-3
8.如图,AB 与ΘO 相切于点B ,A0的延长线交Θ0于点C ,连结BC .若
∠A=36︒则∠C 的度数为( )
(A) 18︒ (B) 27︒ (C)36︒ (D)54︒
9.如图是一张直角三角形的纸片.两直角边AC=6cm ,BC=8cm 将△ABC 折叠,使点B 与点A 重合,折痕为DE ,则AD 的长为( ) (A)
425cm (B)10cm (C) 4
7
cm (D)5cm
10.早7点整芳芳以50米/分的速度步行去上学,妈妈同时骑自行车向相反方向去上班,10分钟时接到芳芳的电话,立即原速返回并前往学校,恰与芳芳同时到达.如图表示她们离家的距离y(米)与时间x(分)间的函数关系,则下列结论错误的是( )
(A)妈妈骑车的速度为250米/分 (B)芳芳早晨上学步行的距离l25米 (C)芳芳早晨上学的时间为25分钟 (D)在7点l6分40秒时妈妈与芳芳途中相遇
二、填空题(每小题3分,共计30分)
11.长城总长约为6700 000米,把6700 000用科学记数法表示为 12.在函数y=2
-x x
中。
自变量x 的取值范围是 . 13.化简=
3
1
27⨯= .
14.因式分解:2mx 2—4mxy+2my 2= 。
15.圆锥的底面半径为14cm,母线长为21cm,则该圆锥的侧面展开图的圆心角为度
16.一件商品的标价为1200元,为了促销打七折售出后可获利5%.则此商品的进价元.
17.如图,平行四边形ABCD的对角线AC、BD相交于点0,
点E是CD的中点,∆ABD的周长为l6cm,则∆DOE的
周长是 cm
18.观察下列图形:
它们是按一定规律排列的,依照此规律,第20个图形共有
个★.
19.如图,在梯形ABCD中,DC//AB,∠A+∠B=90︒,若AB=10,
AD=4,DC=5,则梯形ABCD的面积为
20.如图,在∆ABC中,∠BAC=90︒,AB=AC=22,点D是直
线BC上一点,BD=1,将射线AD绕点A逆时针旋转45︒得到
射线AE,交直线BC于点E则DE= .
三、解答题(其中21-24题各6分,25-26题各8分,27-28题各l0
分,共计60分)
21.【本题6分)
先化简,再求代数式
22.(本题6分)
图a、图b是两张形状、大小完全相同的方格纸,方格纸中每个小正
方形的边长点A、B在小正方形的顶点上.
(1)在图a中画出∆ABC(点C在小正方形的顶点上),使∆ABC是等腰三角形且∆ABC为钝角三角形;(2)图b中画出∆ABD(点D在小正方形的顶点
上),使∆ABD是等腰三角形∠ABD=45︒.
23.本题(6分)
如图,四边形ABCD为矩形。
F为BC边上的一点,AF的延长线交DC 的延长线于点G,DE⊥AG,垂足为E,DE=DC.求证:AF=BC
24.(本题6分)
如图,在一幅矩形地毯ABCD的四周镶有宽度都是1米的花边.设矩形地毯AB边长为x米.镶有花边后,整个地毯EFGH中FG边长为y 米.
(1)若原地毯ABCD的周长为l8米,求y与x的函数关系式不要求写出自变量的取值范围);
(2)在(1)的条件下,当整个地毯EFGH的面积是40平方米,且AB<BC 时,AB的长为多少米?
25.(本题8分) .
希望中学为了解全校1800名学生对学校的体操、球类、跑步、踢毽子等课外体育活动项日的喜爱情况,在全校范围内随机抽取了若干名学生,对他们最喜爱的体育项目(每人只选一项)进行了问卷调查,将数据进行了统计,并绘制成了如图所示的频数分布直方图和扇
形统计图(均不完整).
(1)在这次问卷调查中,一共抽查了多少名学生?
(2)补全频数分布直方图;
(3)估计该校l800名学生中有多少人最喜爱球类活动?
26.(本题8分)
某市国际动漫节开幕前,星空动漫公司预测某种动漫玩具能够畅销,就用32000元购进了一批这种玩具,上市后很快脱销,动漫公司又用69000元购进第二批这种玩具,所购数量是笫一批购进数量的2倍,但每套进价多了10元.
(1)该动漫公司两次共购进这种玩具多少套?
(2)如果这两批玩具每套的售价相同,且全部售完后总利润率不低20%,那么每套售价至少是多少元?
27.(本题l0分)
如图,在平面直角坐标系中,点0是坐标原点,在∆ABC中,BC=AB,点
1
B的坐标为(-4,0),点D是BC的中点,且tan∠ACB=
2
(1)求点A的坐标;
(2)点P从C点出发,沿线段CB以5个单位/秒的速度向终点B匀速运动,过点P作PE⊥AB.垂足为E,PE交直线AC于点F,设EF的长为y(y≠O),点P的运动时间为t秒,求y与t之问的函数关系式(直接写出自变量t 的取值范围);
(3)在(2)的条件下,过点O.作0Q//AC交AB于Q点,连接DQ,是否存在这样的t值,使AFDQ是以DQ为一条直角边的直角三角形,若存在,求出t的值,若不存在.请说明理由.
28.(本题l0分)
已知:在∆ABC 中,AB=AC ,点P 是BC 上一点,PC=2PB,连接AP ,作∠APD=∠B 交AB 于点D 。
连接CD ,交AP 于点E .
(1)如图①,当∠BAC=90︒
时,则线段AD 与BD 的数量关系为 : (2)如图②,当∠BAC=60︒时,求证:AD=
2
7
BD (3)在(2)的条件下,过点C 作∠DCQ=60︒
交PA 的延长线于点Q(如图
3),连接DQ ,延长CA 交DQ 于点K ,若CQ=2
67。
求线段AK 的长.
数学试卷。