上海市奉贤区2013届九年级4月调研测试(二模)试题(5科5份)

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上海市奉贤区2013届九年级4月调研测试(二模)试题(5科5份)

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2012学年奉贤区调研测试
九年级物理试卷(2013.4)
(满分:150分 考试时间:100分钟)
考生注意:
1.答题时,考生务必按要求在答题纸规定的位置上作答,在草稿纸,本试卷上答题一律无效;
2.无特殊说明,都必须在答题纸的相应位置上写出证明或计算的主要步骤。
一、选择题(共16分)下列各题均只有一个正确选项,请将正确选项的代号用2B铅笔涂在答题纸的相应位置上,更改答案时,用橡皮擦去,重新填涂。
1.人体的正常体温是
A.27℃ B.32℃ C.37℃ D.42℃
2.原子中不带电的粒子是
A.中子 B.质子 C.电子 D.原子核
3.有一种新型锁——声纹锁。只要主人说出事先设定的暗语就能把锁打开,别人即使说出暗语也打不开。这种声纹锁辨别声音的主要依据是
A.振幅 B.响度 C.音调 D.音色
4.第一个发现电流磁效应的科学家是
A.托里拆利 B.奥斯特 C.牛顿 D.法拉第
5.在清澈的湖面上空,鱼鹰正在向下俯冲捕食。在鱼鹰向下俯冲的过程中,关于它在湖水中像的虚实、它和像之间的距离,正确的说法是
A.实像,距离变大 B.实像,距离变小
C.虚像,距离变大 D.虚像,距离变小
6.甲、乙两小车同时同地同方向做匀速直线运动,它们的s-t图像分别如图1(a)和(b)所示。由图像可知
A.它们都做匀速直线运动
B.甲、乙受到的阻力一定相等
C.前6秒内甲通过的路程长
D.甲受到的合力小于乙受到的合力
7.在图2所示的电路中,电源电压保持不变。当电键S断开时,有一个电表的示数为零。若电路中的故障只发生在电阻R1或R2处,则电键S闭合后,一定为零的是
A.电流表A的示数
B.电压表V1与电压表V2示数的差
C.电压表V2的示数
D.电压表V1与电流表A示数的比值
8.如图3所示,把质量为m甲、m乙的实心正方体甲和乙分别放在水平桌面上(已知ρ甲=2ρ乙),它们对桌面的压强相等为P0。若在乙块上方沿水平方向截取四分之一高度,并将甲块叠放在乙块上面,此时乙块对桌面的压强为P乙,则m甲、m乙及P乙、P0的大小关系为
A.m甲=4m乙 P乙=1/4P0 B.m甲=2m乙 P乙=1/2P0
C.m甲=1/2m乙 P乙=P0 D.m甲=1/4m乙 P乙=P0
二、填空题(共26分)请将结果填入答题纸的相应位置。
9.家用电器之间是 (1) 的(选填“串联”或“并联”),家庭每月的耗电量用 (2) 表测量。手电筒中一节5号干电池的电压为 (3) 伏。
10.在图4所示的斯若克比赛中,运动员丁俊晖用杆推A球之后,A球开始滚动,说明力能改变物体的 (4) ;A球击中B球后,B球开始滚动并继续向网袋方向前进,这是由于B球具有 (5) ;最终B球落入网袋是由于受到 (6) 作用的缘故。
11.夏天阳光下,奉贤碧海金沙沙滩上的沙子温度会升的很高,这是通过 (7) 的方式改变其内能的,而海水的温度却不高,主要是由于海水的比热容较 (8) 的缘故。近几天来“菜花节”上闻到了油菜花香,这是由于分子在不停地做 (9) 运动造成的。
12.炎热的夏天一辆正在洒水的洒水车在水平路面上匀速直线运动,10分钟内通过路程900米,汽车的速度为 (10) 米/秒;在这过程中,洒水车的动能 (11) (选填“变大”、“不变”或“变小”);以路边的建筑物为参照物,洒水车是 (12) 的(选填“运动”或“静止”)。
13.加在某导体两端的电压为6伏,10秒内通过该导体的电流为0.5安,则通过该导体横截面的电荷量为 (13) 库,该导体的电阻为 (14) 欧。如将该导体截去一部分,剩余部分导体的电阻将 (15) 原导体的电阻(选填“大于”、“等于”或“小于”)。
14.一个重力为8牛的实心金属块,挂在弹簧测力计下,将其一半体积浸入水中时,弹簧测力计的示数为5牛,此时金属块所受的浮力为 (16) 牛;若把金属块全部浸入水中时,金属块所受的浮力与重力的合力为 (17) 牛,继续增加金属块在水中所处的深度,受到的浮力将 (18) (选填“变大”、“不变”或“变小”)。
15.在图5电路中,电源电压保持不变。闭合电键S,当滑动变阻器的滑片P向右移动时,电路表A的示数将 (19) ,电压表V1和V2的示数差值与A示数的比值将 (20) (均选填“变大”、“不变”或“变小”)。
16.某小组同学学习了同一直线上力的合成知识后,通过实验研究两个大小相等的力不在同一直线上时二力合成的规律。他们使用的器材是橡皮筋和弹簧测力计,橡皮筋原长为AO,实验时先将A点固定在水平桌面上,用两个弹簧测力计成一定的夹角在同一水平面内拉伸该橡皮筋,使橡皮筋分别伸长到B点、C点和D点,如图6所示。请仔细观察实验现象,归纳得出初步结论。
①分析比较图6(a)和(b)橡皮筋的形变程度和受力情况,可知: (21) ;
②分析比较图6(b)和(c)橡皮筋的形变程度和受力情况,可知: (22) 。
三、作图题(共6分)请将图直接画在答题纸的相应位置,作图题必须使用2B铅笔。
17.重为6牛的物体用细线悬挂在天花板上,用力的图示法在图7中画出它所受的重力G。
18.请在图8中根据通电螺线管周围磁感线的方向,标出通电螺线管和小磁针的N极,以及电源正、负极。
四.计算题(共24分)请将计算过程和答案写入答题纸的相应位置。
19.用电水壶将质量为0.5千克的水加热,水温升高了20℃,求水吸收的热量Q吸。已知[c水=4.2×103焦/(千克 ℃)]
20.如图9所示,用滑轮把重为20牛的物体在4秒内竖直向上提升2米。求:
(1)拉力做的功W ;
(2)拉力的功率P。
21.在图10(a)所示的电路中,电阻R1的电阻为20欧,变阻器R2标有“20Ω 2A”字样,闭合电键S后,电流表A1的示数为0.3安。求:
(1)电源电压值;
(2)将变阻器R2的滑片P移至某点时,电路中某电流表的示数如图10(b)所示,变阻器R2连入电路的阻值;
(3)变阻器R2所消耗的最大功率。
图10
22.如图11所示,放在水平桌面上两个完全相同的柱形金属容器A、B,每个容器质量为0.5千克,底面是边长为10厘米的正方形,高为60厘米,分别装有2千克的水和3.0×10-3米3的酒精(ρ酒精=0.8×10-3千克/米3)求:
(1)水的体积;
(2)A容器对桌面的压强; 图11
(3)若将两个完全相同的底面边长为8厘米高为50厘米的金属柱体分别放入A、B两个容器中,是否有可能使容器中的液体对底部的压强达到p水>p酒?若有可能请算出p水和p酒的值(无需写出具体的计算过程);若没有可能,通过计算说明理由。
五.实验题(18分)请根据要求在答题纸的相应位置作答。
23.在“测量物体的质量”实验中,应将被测物体放置在水平的 (1) 盘中(选填“左”或“右”);天平平衡时,砝码和游码的示数如图12所示,物体的质量为 (2) 克。在“探究杠杆平衡条件”实验中,杠杆所处的状态如图13所示,此时应移动 (3) (选填“平衡螺母”或“钩码”),使杠杆 (4) 位置平衡,以方便测出力臂。
24.在“验证凸透镜成像规律”的实验中,应调节光源、凸透镜和光屏的中心大致在 (5) 。现有焦距分别为50厘米、30厘米、25厘米和15厘米的凸透镜各一块,为了得到完整的规律,应选用焦距为 (6) 厘米的凸透镜,此时在图14中的蜡烛和透镜位置保持不变,则可在 (7) 厘米刻度线的 (8) 侧(选填“左”或“右”)找到所成的像。
25.某小组同学做“测定小灯泡功率”的实验。所有实验器材均完好,共有四个滑动变阻器待用,分别是A:“10Ω 1A”、B:“20Ω 2A”、C:“50Ω 2A”和D:“100Ω 2A”,已知小灯的额定电压为3.8伏。
(1)该组同学首先选取变阻器C进行实验,他们按照正确的方法进行实验操作,观察到闭合电键后,电流表的示数为0.1安,电压表的示数为1伏,而小灯好像没有发光。该组同学实验室所选的电源电压为 (9) 伏。
(2)该组同学接着移动变阻器的滑片,观察到当滑片在变阻器最大阻值的1/4位置附近滑动时,小灯接近正常发光,但是此时移动变阻器的滑片,电压表的示数很难比较精确地达到3.8伏。于是该组同学换了个变阻器进行实验,他们闭合电键后,发现电压表的示数略大于额定电压,则他们选取的是变阻器 (10) (选填“A”、“B”或“D”)。
(3)该组同学最后通过讨论、选取了合适的变阻器,并完成了实验。他们发现当滑片在中点时小灯正常发光,此时电流表的示数如图15所示,则小灯的额定电流为 (11) 安,小灯的额定功率为 (12) 瓦。
26. 小伟和小赵等同学做实验探究盛有液体的容器底部受到液体压强大小与哪些因素有关,如图16(a)所示,在三个不同底面积的圆柱形容器中分别注入质量相等的水,利用仪器测得容器底部受到水的压强,并将相关实验数据记录在表一中;接着用酒精重复上述实验操作,并将数据记录在表二中;随后,他们又在如图16(b)所示的三个不同底面积的口大底小容器中注入等质量的水,重复上述实验,数据记录在表三中.通过分析发现液体对容器底的压强与容器的形状、液体质量是无关的.下面请同学们根据他们记录的数据继续分析.(已知ρ酒精=0.8×103千克/米3)
图16
(1)分析比较实验序号 (13) 有关数据,可得出的初步结论是:同种液体,当液体深度相同时,液体对容器底部的压强与容器底部面积大小无关。
(2)分析比较实验序号1、2、3(或4、5、6或7、8、9)可知:
(14) 。
(3)为了得出液体容器底部受到液体压强大小与 (15) 的关系,分析比较实验序号1与4(或2与5;3与6;4与7;5与8;6与9)可知:
(16) 。
(4)该小组同学根据表格中的数据计算了液体对容器底的压力并与液体的重力进行比较.归纳得出结论:
(a) 分析比较表一或表二中的数据及相关条件,可初步得出
(17) ;
(b)分析比较表三中的数据及相关条件,可初步得出
(18) 。
2012学年奉贤区调研测试九年级物理卷答案
1.C 2.A 3.D 4.B 5.D 6.A 7.C 8.D
9.并联;电能表;1.5
10.运动状态;惯性;重力
11.热传递;大;无规则运动
12.90;变小;运动
13.5;12;小于
14.3;2;不变
15.变小;不变
16.两个大小相等的力,当它们夹角相等力大小不相等时,力的作用效果不同,且力的大小越大,力的作用效果越大;两个大小相等的力,当它们力的大小相等夹角不等时,力的作用效果不同,且夹角越大,力的作用效果越小
(作图略)
19.4.2*104J
20.无图应该是40J,10W
21.6V;15Ω;12W
22.2.0×10-3米3;2450Pa;p水=5096Pa p酒=4704Pa
23.左;54;钩码
24.同一高度;15;75;右
25.6V;A;0.18;0.684
26.1与7(或2与8或3与9);同种液体,当液体质量相同时,容器底部受到液体压强与液体深度成正比;液体密度;不同液体,当液体深度相同时,液体密度越小容器底部受到液体压强越小;柱形容器容器底部受到液体压力与液体重力相等;非柱形容器容器底部受到液体压力与液体重力不相等,且当容器是上大下小时,容器底部受到液体压力小于液体重力2012-2013学年 奉贤区初三语文二模卷 (2013年4月)文言文(42分)默写(18分)空山新雨后, 。 《山居秋暝》 ,千骑卷平冈。 《江城子· 密州出猎》 ,百草红叶黄花。 《天净沙·秋》爱上层楼, 。 《丑奴儿·书博山道中壁》予独爱莲出淤泥而不染, 。《爱莲说》 ,饥渴而顿碚······ 《捕蛇者说》阅读下面是个,完成7----8题(4分)观沧海 三国 曹操东临碣石,以观沧海。 水何澹澹,山岛耸峙。 树木丛生,百草丰茂。 秋风萧瑟,洪波涌起。 日月之行,若出其中。 星汉灿烂,若出其里。 幸甚至哉,歌以咏志。7、对这首诗理解有误的一项是( )(2分)A、“东临碣石,以观沧海”两句开篇点题‘交代了观察的方位、地点以及观察的对象。B、“临”字统领全篇,以下十句,都是写海上的景象。C、“水何澹澹”是描写无风时海面水波动荡的样子。D、“洪波涌起”是描写有风时大海波涛汹涌的壮阔气势。8、全诗描绘了 景象,抒发了诗人 的伟大抱负。(2分)(三)阅读下文,完成9-----11题(8分)陋室铭山不在高,有仙则名。水不在深,有龙则灵。斯是陋室,惟吾德馨。苔痕上阶绿,草色入帘青。谈笑有鸿儒,往来无白丁。可以调素琴,阅金经。无丝竹之乱耳,无案牍之劳形。南阳诸葛庐,西蜀子云亭。孔子云:“何陋之有?”9、本文作者是 (朝代)文学家 (人名)。(2分)10、用现代汉语翻译下面的句子。(3分)苔痕上阶绿,草色入帘青。 11、下列理解不正确的一项是( )(3分)A.“龙”和“仙”比喻道德高尚的人。B.“苔痕上阶绿,草色入帘青”渲染了居室恬静的气氛。C.“谈笑有鸿儒,往来无白丁”表现了作者对知识分子的歌颂,对无学问之人的鄙薄。D.“无丝竹之乱耳,无案牍之劳形”反映了室主人对追名逐利的世俗生活的厌弃。(四)阅读下文,完成12-----15题。(12分)朱文公受骗  朱文公①有足疾,曾有道人②为施针熨③之术,旋觉轻安。公大喜,厚谢之,且赠以诗云:“几载相扶藉瘦筇④,一针还觉有奇功。出门放杖儿童笑,不是以前勃窣⑤翁。”道人得诗径去。未数日,足疾大作,甚于未针时。亟令人寻逐道人,已莫知其所往矣。公叹息曰:“某非欲罪之,但欲追索其诗,恐其持此诗误他人尔。”【注释】①朱文公:即朱熹,南宋儒学大师,谥“文”,故称朱文公。②熨:中医学名词,俗称“热敷”。③旋:一会儿。④筇:竹名。⑤勃窣:匍匐而行。12、解释下列句中加点字:(4分)(1)道人得诗径去( ) (2)足疾大作( )13、对文中划线句句意理解正确的一项是( )(3分)A、某人不想得罪他,但是想要追回她的诗。B、某人不想惩处他,只是想要追回她的诗。C、我不是想要得罪他,但是想要追回那首诗。D、我不是想要惩处他,只是想要追回拿手诗。14、文中表现朱文公受骗的句子是 (3分)15、从朱文公受骗后的表现来看,他是个的 人。(2分)二、现代文(48分)(一)、阅读下文,完成16-20题(22分)时尚红包装满传统意味①说到红包,谁都对它不陌生。传统意义上的红包也叫压岁钱,是过农历春节时长辈给小孩儿用红纸包裹的钱。如今,它正以其令人眼花缭乱的设计和丰富的文化内涵,吸引着越来越多的人。②据史载,A最早的压岁钱出现于汉代。时称厌胜钱,是为了佩带玩赏而专铸成钱币形状的避邪品。B到了唐代,宫廷内互相朝拜赠送之风盛行,压岁封包制作精良。C大约在上世纪20年代开始出现如今广为流行的红包封形式。D当时的红包封用土纸或竹宣纸制成,颜色以粉红色或浅紫色为主,做工考究些的,封内还会衬上一层薄纸,以增加牢固度,并配有吉祥的词句和图案。 ③自上世纪50年代开始大量机制印刷的出现,红包封发展势头日益迅猛。首先红包日益缤纷,争奇斗艳,制作精良。 除了以一些祥瑞图案制作的红包封外,还出现了以名人的照片、卡通形象、生肖为主图的红包封。其次红包已向商界发展,商家把红包封作为促销的“催化物”,常印制红包封赠送给客户,或直接装入礼金派送,甚至连某些外商也入乡随俗,推出了许多“中西合璧 ”的个性红包封。此外“电子红包”、“礼仪存折”、“贺岁金卡”等形式也在不断推陈出新。 ④由于红包在中国老百姓的生活中已司空见惯,多数人从红包中取出压岁钱或礼金之后,就对红包封不屑一顾,随之丢弃。因此几千年来收藏红包封的人名不见经传,去研究红封的人更是凤毛麟角了,其实,红包封蕴含着丰富的传统文化因素。⑤红包封上书有各异的文化语言,表达出祝贺心声,从中可看出中国传统的礼仪文化。如 “南极星辉”贺男寿,“中天婺焕”贺女寿;“天作之合”贺男婚,“于归之喜”贺女嫁;“乔迁之喜”、“燕仪”表示新屋落成搬入之贺。 ⑥我国幅员辽阔,民族众多,各地对红包封的称呼也各不相同,从这些称呼中可以看出不同的地方文化。比如,北方人则叫它为“红喜袋”,送出了人们红红火火的祝愿;港粤同胞的则称它为“利事封”,寄托利利事事的美好憧憬。⑦作为社会生活的一个符号,红包是礼尚往来的载体,是人们交往的一种纽带,也是无可替代的民俗民风。社会学告诉我们,一种文化到了大俗的地步,也就溶进世人的血液里了。正因如此,红包封收藏已开始得到越来越多藏家的青睐,相信假以时日,必会蔚为大观。16、第②段中与“制作精良”意思相近的短语是 (2分) 17、“到了清明出现了彩绳串铜钱、红钱包纸币等形式,这就是红包封的雏形。”这一句话是从第②段中抽出来的,放在A、B、C、D哪处最合适?请说出你的理由。(3分) 18、下列选项与第③段内容不相符合的一项是( )(3分)A、上世纪50年代红包封发展势头迅猛异常。B、红包日益缤纷,争奇斗艳,制作精良。C、红包已向商界发展,甚至出现了许多“中西合璧”的个性红包封。D、红包的形式也在不断推陈出新。19、第⑥段的划线句子运用了 说明方法,其作用为 (5分)20、本文主要说明了红包的定义、 、 和 。(9分)(二)阅读下文,完成21-26题(26题)拳拳赤子心 殷殷航空情①罗阳,一个满怀航空报国的赤子,情系“沈飞”(中航工业沈阳飞机工业集团有限公司)发展的“掌舵人”,于2012年11月25日12时48分,溘然长逝。笑容谦逊,目光柔和的他,没有盛气凌人,没有高谈阔论,没有轰轰烈烈,却留给身边人无尽的回忆。②刚参加工作时,罗阳见多数同事都是外地人,长期吃食堂没有油水,就偶尔请同事们到他沈阳的父母家去改善一下伙食。又怕大家不好意思,就编出帮忙搬家具、打扫卫生种种理由,贴心而又温情。③当上企业领导后,在赶赴任务同时,他总不忘对职工们多一份关心。冬天的沈阳,大地冰封,寒风凛冽。空旷的试车场地气温更是比其他地方低4到5摄氏度,风力也要强上至少2级。场地上铺着大块钢板,总是由下而上冒着透骨的寒气,艰苦的环境考验着试车人员的身心,也牵动着罗阳的柔肠。深夜看到大伙加班,他操起电话,叮嘱后勤一定要给现场加餐;进入冬季害怕工人冻手,他又让公司给外场人员每人配发了一个暖手宝御寒。。。。。。④很多人认为,当领导必要时在下属面前摆摆架子、耍耍威风,才能压得住阵脚,而罗阳却与这一想法相去甚远。有一回沈飞发生安全生产事故,很多干部职工都惴惴不安,认为“这回领导一定会趴桌子,处分人”。没有想到的是,第二天安全生产会议上,罗阳竟然细细讲解起从八个方面抓生产、保安全的方法。⑤罗阳,关心干部职工们饮食冷暖,柔情似水; 。⑥沈阳是我国重要的飞机研发制造基地,除了“沈飞”,这里还有多家飞机研究、设备制造厂所。“作为“沈飞”的关健设备供应商,公司每当遇到资金困难,只要向罗阳提,他都会毫不犹豫,尽快解决。”中航工业沈阳黎明航空发动机有限责任公司总经理孟军说,“他的着眼点不仅仅单纯从沈飞的利益出发,维护的是整个飞机生产链的正常运转。”他用坚强和隐忍维系飞机研制链条的顺畅和平衡。⑦2012年1月,罗阳担任中国第一艘航空母舰舰载机歼—15研制现场总指挥。最小化的误差、零缺陷的产品质量,军方的高标准高要求,常常把制造方 艰难境地;设计师们面向全球,以开阔的视野,置身与技术研发的最前沿,对工艺水平相对落后的我国航空制造业带来严峻的考验;没有经验,航空制造大国对技术的严密封锁,迫着航空人只有自主创新一天路可以走。面对重重困难,他从不以找托辞,要求降低飞机制造难度,相反总是给设计者最大的创新空间,鼓励他们大胆设计,加工制造时遇到困难他再去想办法。“你说怎么干,我们就怎么干”——这是罗阳常说的一句话。在歼—15身上,罗阳和他的团队攻克了很多工艺难点,突破了起落架、机翼折叠、阻拦钩等关键技术,从技术发图到新机下线创造了我国航空史上的研制速度奇迹。⑧“将空间让给别人,将难题留给自己。”在国防发展的大局和航空技术追赶的大义上,罗阳没有丝毫含糊⑨才见虹霓君已去,英雄谢幕海天间!多希望你只是小憩,醉一下再挑灯看剑,梦一回再吹角连营。你听到了么?那战机的呼啸,没有悲伤,是为你而奏响!21、第①段划线句运用了 的修辞,在文中的作用是 (3分)22、第③段划线句是 描写,其作用是 (4分)23、根据上下文,请在第⑤段横线处补充合适的内容。 (2分)24、根据文意,为第⑦段横线处选择一个最恰当的词语,并说说选择的理由。(3分)25、第⑦段中“重重困难”具体指的是(1) (2) (3) (6分)26、将第⑨段与下面一段文字作比较,你认为哪一段作为本文的结尾更好?请用80字左右说说你的理由。(8分) 罗阳,你用无悔的信念诠释着“航空报国”的真谛,你不愧是中国国防科技工作者的骄傲,也是我们民族的骄傲。三、写作(60分)27、题目:温暖的记忆要求:(1)写一篇600字左右的文章;(2)不得透露个人信息;(3)不得抄袭:奉贤区2012学年度第二学期初三化学调研试卷(2013.4)
(完卷时间40分钟 满分60分)
相对原子质量:C-12 O-16 Na-23 Ca-40
一、选择题(20分)
27、生活中发生的变化属于化学变化的是
A.瓷碗破碎 B.光合作用 C.蜡烛熔化 D.香水挥发
28、生活中常见的水属于纯净物的是
A.矿泉水 B.自来水 C.蒸馏水 D.雨水
29、某同学的课堂笔记中摘录下来的部分物质的名称、化学式,其中错误的是
A.氧化铁 FeO B.氯化钾 KCl C.氢氧化铜 Cu(OH)2 D.硝酸HNO3
30、镁带能在二氧化碳气体中燃烧:2Mg+CO2 → 2MgO+C,此反应中的氧化剂是
A.CO2 B.Mg C.MgO D.C
31、人吸入O2有2%转化为活性氧加速人体衰老,被称为“夺命杀手”。科学家尝试用Na2SeO3清除人体内活性氧,Na2SeO3中Se(硒)元素化合价是 ( )
A.+2 B.+4 C. +6 D.-2
32、农作物生长需要氮、磷、钾等营养元素,下列化学肥料中属于钾肥的是
A.(NH4)2SO4 B.NH4HCO3 C.NH4NO3 D.K2CO3
33、物质的性质决定其用途。有关物质的用途正确的是
A.食盐溶液用于选种 B.氢氧化钠用于治疗胃酸过多
C.氧气用作火箭燃料 D.胆矾用于检验水
34、有关2CO+O22CO2的叙述正确的是
A.2g一氧化碳和1g氧气在点燃条件下反应生成2g二氧化碳
B.两个一氧化碳分子加一个氧分子等于两个二氧化碳分子
C.一氧化碳和氧气在点燃条件下反应生成二氧化碳D.一氧化碳加氧气点燃等于二氧化碳
35、下列仪器的名称和用途完全正确的是
A B C D
仪器
名称 药匙 量筒 滴瓶 试管夹
用途 添加粉末状的试剂 量取液体或配制溶液 存放固体或液体试剂 夹持试管
36、下列实验现象描述正确的是
A.打开盛有浓盐酸的瓶盖,瓶口出现白烟 B.硫在空气中燃烧时,发出淡蓝色火焰
C.铁丝在氧气中剧烈燃烧时,生成四氧化三铁
D.用石蕊试液染成的干燥的紫色纸花放入二氧化碳中,纸花变红
37、对以下事实的解释错误的是
事 实 解 释
A. 警犬利用嗅觉搜毒品 分子在不断运动
B. 用稀有气体做保护气 通电后能发出有色光
C. 用碳素墨水书写档案材料 碳在常温下化学性质稳定
D. CO和CO2的性质差异很大 分子结构相差一个氧原子
38、下列图像与所对应操作相符的是
① ② ③ ④
A. ①是对氢氧化钠溶液加水稀释
B.②是将镁片和铁片(均足量)分别和等质量、等溶质质量分数的稀硫酸混合
C. ③是向HCl与Na2SO4混合溶液中加入Ba (OH) 2溶液
D. ④是用等质量、等浓度的双氧水分别制取氧气
39、下面关于水电解实验的叙述正确的是( )
A.实验说明水是由氢、氧两种元素组成的
B.实验说明水是由氢气和氧气组成的
C.水电解的化学方程式:2H2O→2H2↑+ O2↑
D.若a试管气体为5mL,则b试管气体为10mL
40、能用于实验室制二氧化碳,且符合启普发生器原理的装置是
41、除去下表所列物质中含有的杂质,所选试剂及操作方法均正确的是
选项 物质 杂质 除去杂质所选试剂 操作方法
A 二氧化碳 一氧化碳 氧气 点燃
B 氯化钾 碳酸钾 稀盐酸 蒸发
C 锌 铁 稀硫酸 过滤
D 氧化钙 碳酸钙 稀盐酸 蒸发
42、将下列各组物质混合后溶于水,得到无色溶液的是
A.NaNO3、KCl、Na2SO4 B.FeCl3、NaCl、KNO3
C.CuSO4、CaCl2、KOH D.BaCl2、K2CO3、H2SO4
43、配置50g溶质质量分数为5%的氯化钠溶液,下列操作会导致所溶液溶质质量分数偏大的是
A.称量时药品和砝码放反了 B.称取氯化钠的质量为2.5g
C.量取溶剂时,俯视量筒读数 D.把配制好的溶液倒入试剂瓶时有部分溅出
44、每年4月我市会开展初中化学实验操作考试。以下是一些同学在实验操作考试中的做法,你认为正确的是
A.把胶头滴管伸入试管中滴加液体 B.在托盘天平上直接称量固体物质
C.握住试管夹的短柄给试管内的液体加热D.用药匙或纸槽把粉末状药品送入试管底部
45、某固体粉末可能由氢氧化钠、氢氧化钙、碳酸钠和碳酸钙中的一种或几种组成,进行如下实验:①取少量固体加入足量的水,搅拌,有不溶物;②过滤,向滤液中加入盐酸,有气泡产生。下列对固体粉末成分的判断中,不正确的是
A.一定有碳酸钠 B.可能有氢氧化钠
C.一定有碳酸钙 D.可能有氢氧化钙
46、现有盐酸和CaCl2的混合溶液,向其中逐滴加入过量某物质X,
溶液的pH随滴入X的量的变化关系如右图所示。则X是
A.水 B.澄清石灰水 C.纯碱溶液 D.稀盐酸
二、填空题(20分)
47、从氧气、甲烷、氢氧化钙、碳酸钙、金刚石、氧化钙六种物质中,选择符合要求的物质的化学式填空。:
(1)澄清石灰水的溶质 ;(2)晶莹剔透的钻石 ;
(3)天然气的主要成分 ;(4)能作干燥剂的物质 。
48、浩瀚的大气是大自然对人类的恩赐,与人类的生存休戚相关。
(1)空气中氧气的体积分数约为   ;
(2)植物通过光合作用,可将二氧化碳转化为氧气,光合作用的化学方程式为:
6CO26XC6H12O66O2,则X的化学式为 。C6H12O6属于
(填“无机物”或“有机物”),1.204×1024个C6H12O6分子的物质的量
是 mol。
(3)“节能减排”是我国的重要国策,下列气体中属于“减排”对象的是 (填序号);
A.N2 B.CO2 C.O2 D.H2O(气)
(4)由于人类生产、生活等因素的影响,全球性空气污染越来越严重。近年来上海频现雾霾天气,雾霾可使空气中增加大量的 (填字母序号);
A.二氧化碳 B.一氧化碳 C.二氧化硫 D.可吸入颗粒物
我市自去年6月起发布全市PM2.5平均浓度,防PM2.5专用口罩使用了活性炭,这是利用了活性炭的 作用。
49、在宏观、微观和符号之间建立联系是化学学科的特点。甲、乙、丙、丁表示四种物质,它们的部分化学式和微观示意图分别列于下表:
物质 甲 乙 丙 丁 图例: ——氢原子——碳原子——氧原子
化学式 ? C H2O H2
微观示意图 ?
(1) 请写出甲物质的化学式 ,画出丁物质的微观示意图 。
(2)能保持丙物质化学性质的微粒是 (填“分子”或“原子”)。
(3)四种物质中属于氧化物的有 (填“甲、乙、丙、丁”)。
50、甲、乙、丙三种固体物质的溶解度曲线如图所示,请回答:
(1)t1℃时,甲的溶解度______乙的溶解度。(填“>”、“<”或“=”)
(2)t1℃时,将20g乙固体加入到50g水中,充分搅拌后,
所得溶液的质量为 g。
(3)现有操作步骤: a.溶解 b.过滤 c.降温结晶 d.加热浓缩;
若甲固体中含有少量乙,则提纯甲的操作步骤
是 (填字母序号)。
(4) 将丙物质的不饱和溶液变为饱和溶液。下列说法正确的是_____ (填字母序号)。
Ⅰ.溶质的质量一定不变 Ⅱ.溶质的质量分数一定增大
Ⅲ.溶液质量可能不变 Ⅳ.可升高温度或蒸发溶剂
(5)向100g t2℃的水中加入55g甲固体,发现全部溶解,一段时间后又有部分甲的晶体析出。你认为“全部溶解”的原因可能是 。
三、简答题(20分)
51、实验室常用下列装置制取和收集气体,请根据下图回答有关问题。
(1)仪器①的名称是 。
(2)实验室加热KClO3和二氧化锰制取并收集一瓶较纯净O2,应选用图中的 装置(从装置A~E中选择,填字母),其反应化学方程式是 。
若用F装置进行“排空气法”收集O2,请把图中的“导气管”补画完整。
(3)小红同学用浓HCl与大理石在B装置中反应,并将制得的CO2 气体通入紫色石蕊试液中,观察到试液变红,石蕊试液变红的原因可能是 。(写出两种)
52、某组同学准备进行常见酸、碱、盐的性质实验时,发现实验台
上摆放的药品中,有一瓶溶液未盖瓶盖且标签破损(如右图),
于是决定对这瓶溶液进行实验探究:
【提出问题】这瓶是什么溶液?
【获得信息】酸、碱、盐的性质实验中用到含有钠元素的物质是氯化钠、氢氧化钠、碳酸钠
【提出猜想】猜想一:氯化钠溶液;猜想二:氢氧化钠溶液;猜想三:碳酸钠溶液。
【实验推断】
(1)小亮取样滴加无酚酞试液,溶液呈红色,得出结论:该溶液不可能是 溶液,理由是 ;
(2)小辉另取样滴加稀盐酸,有 产生,反应的化学方程式 ,小辉得出结论:该溶液是碳酸钠溶液。
(3)小磊认为小辉的结论不完全正确,理由是 。
小组同学讨论后一致认为还需要进行如下实验:
【继续探究】另取样加入过量的CaCl2溶液,观察到有 产生,设计这一步骤的目的是 ;静置后,取上层清液,滴入酚酞试液,溶液呈红色。
【实验结论】这瓶溶液是 。
【探究启示】实验取完药品后应 。
53、我国北方某盐湖生产的纯碱(Na2CO3)产品中常含有少量的氯化钠(其它杂质忽略不计)。为测定该产品中碳酸钠的质量分数,现称取6g试样配成溶液,向其中逐滴加入CaCl2溶液,产生沉淀物质的量与所加CaCl2的物质量关系如图所示。
试回答:(1)试样中碳酸钠的质量分数(结果精确至0.1%)。
(要求写出计算过程)
(2)B点时,溶液中的溶质是_____ (写出化学式)。
奉贤区2012学年度第二学期初三化学调研试卷参考答案
六、选择题(20分)
27 28 29 30 31 32 33 34 35 36
B C A A B D A C D B
37 38 39 40 41 42 43 44 45 46
B B A D B A C D C C
七、填空题(20分,每空一分)
47.(1)Ca(OH)2; (2)C; (3)CH4; (4)CaO
48.(1)21% (2)H2O 有机物 2 (3)B (4)D 吸附
49.(1)CO (2)分子 (3)甲、丙(全对1分)
50. (1)> (2)62.5 (3)adcb (4) Ⅲ Ⅳ(全对1分)
(5)固体甲溶于水时放热
八、简答题(20分)
51、(1)长颈漏斗
(2)AC 2KClO3 2KCl + 3O2↑
(3)①二氧化碳和水反应生成的碳酸使石蕊变红色
②浓盐酸挥发出的氯化氢气体溶于水使石蕊变红色 (2分)
52、(1)氯化钠溶液 氯化钠溶液呈中性,不能使酚酞试液变色。
(2)气泡 Na2CO3 + 2HCl → 2NaCl+ H2O + CO2↑;
(3)露置于空气中的NaOH溶液与空气中的CO2反应也生成碳酸钠。
【继续探究】白色沉淀; 除尽溶液中的Na2CO3,避免其对NaOH的检验造成干扰。
【实验结论】NaOH溶液(填变质的NaOH溶液也可)
【探究启示】立即盖好瓶盖
53.(1)设:6克试样中含碳酸钠 X mol
Na2CO3 + CaCl2 → CaCO3↓ + 2NaCl (1分)
1 1
Xmol 0.05mol
1/X=1/0.05 (1分)
X=0.05 (1分)
Na2CO3%=(0.05×106/6)×100%=88.3% (1分)
答:试样中碳酸钠的质量分数为88.3% 。
(2)NaCl和CaCl2 (1分)
A B C D

Ca(OH)2
Na
n (CaCl2)/mol
0.05
沉淀/mol
→ →
MnO22012学年奉贤区第二学期初三调研测试(2013.04)
英语试卷
(满分150分,考试时间100分钟)
考生注意:本卷有7大题,共99小题。试题均采用连续编号,所有答案务必按照规定在答题纸上完成,做在试卷上不给分。
Part 1 Listening (第一部分 听力)
I. Listening Comprehension (听力理解): (共30分)
A. Listen and choose the right picture (根据你听到的内容,选出相应的图片) ( 6分)
A B C D
E F G
1. ______ 2. ______ 3. ______ 4. ______ 5. ______ 6. ______
B. Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题,选出最恰当的答案) (10分)
7. A) Black. B) Brown.
C) Red. D) White.
8. A) Sunny. B) Cloudy.
C) Snowy. D) Rainy.
9. A) In a shop. B) At home.
C) In a restaurant. D) On a train.
10. A) By underground. B) On foot.
C) By car. D) By bus.
11. A) To visit his grandparents. B) To go out for a picnic.
C)To do some housework. D) To go over his lessons.
12. A) One. B) Two.
C) Three. D) Four.
13. A) She went to see her friends. B) She was in hospital.
C) She was at home. D) She didn’t want to go to school.
14. A) At 10:50. B) At 11:00.
C) At 11:10. D) At 11:20.
15. A) She has wasted a lot of money.
B) She wants this type of camera very much.
C) She doesn’t have money for sightseeing.
D) She doesn’t want to buy the camera.
16. A) Policeman and traveler. B) Teacher and student.
C) Doctor and nurse. D) Seller and buyer.
C. Listen to the passage and tell whether the following statements are true or false (判断
下列句子是否符合你听到的内容, 符合的用“T”表示,不符合的用“F”表示) (7分)
17. The mother locked the door with two locks every night.
18. The girl thought her life was full of excitement.
19. In order to see the outside world, the girl left home without telling her mother one day.
20. After eight years, the girl returned home happily.
21. When the girl got home, her mother was sleeping.
22. The girl knocked the door for a long time and couldn’t get in.
23. From the passage we can learn the mother loved her daughter very much.
D. Listen to the passage and complete the following sentences(听短文,完成下列内容。每空格限填一词)(7分)
24. The small town has a river with an old ________ bridge across it.
25. Three teachers teach ________ students in the school
26. On Main Street there is a ________, a supermarket, a gas station, a bakery, a butcher’s shop and a book store.
27. A doctor and a police officer________ on opposite side of the river.
28. We don’t have a movie theater, but we can rent________ at the supermarket.
29. I usually go to the movies with my mum every ________.
30. This letter is written by ________
Part 2 Vocabulary and Grammar (第二部分 词汇和语法)
II. Choose the best answer (选择最恰当的答案) (共20分)
( ) 31. This is _______ useful book and I want to buy it from the bookshop.
A) a B) an C) / D) the
( ) 32. Scott usually gets up at 6:10, then he cleans _______ own bedroom.
A) himself B) he C) him D) his
( ) 33. I made a special card for my mother _______ Women’s Day.
A) in B) at C) on D) of
( ) 34. ________ people took part in the search for the lost baby in Changchun.
A) Thousands of B) two thousands C) thousand of D) two thousands of
( ) 35. If you can’t decide which of the two novels to borrow, why don’t you take _______
I won’t read them this month.
A) all B) both C) any D) either
( ) 36. The dish smells ________ and you’d better throw it away.
A) badly B) well C) good D) bad
( ) 37. Nowadays, PM 2.5 pollution is becoming _________ in China. Everyone must help to fight against it.
A) seriouser and seriouser B) more and more serious
C) more serious and more serious D) more serious and serious
( ) 38. Love will ________ last (延续) if we love the whole fine things around us.
A) seldom B) always C) never D) sometimes
( ) 39. ________ important thing it is to do eye exercises every day!
A) What B) What a C) How D) What an
( ) 40. Eat more in the morning, _______ you’ll get hungry soon.
A) and B) but C) or D) yet
( ) 41.We _______ turn off the lights before we leave the classroom.
A) must B) can C) may D) need
( ) 42. Last week our geography teacher told us _______ more information about how to protect the environment.
A) to get B) got C) get D) getting
( ) 43. A lot of flights were _______ because of the smog(雾霾)last month.
A) put down B) put up C) put off D) put out
( ) 44.A large number of people have joined the clean Your Plate Campaign(“光盘行动”) to help _________ food waste.
A) reduce B) replace C) release D) remove
( ) 45. You must pay attention to your handwriting _________ everybody can understand what you have written.
A) so B) so…that C) because D) so that
( ) 46. Tom, please try to tell the story in your own words. ________ afraid to make mistakes.
A) Not be B) Don’t be C) Not to be D) Not to being
( ) 47. Mary ________ Britain many times, so she is very familiar with its capital city, London.
A) visited B) will visit C) has visited D) is visiting
( ) 48. A BRT(Bus Rapid Transit快速公交系统)_________ in Fengxian District in the near future. It will take people less time to go to the center of Shanghai.
A) will build B) will be built C) builds D) was built
( ) 49. ---- Mr. Wang, your daughter is excellent. She is beautiful both inside and outside.
---- ________
A) Not at all. B) All right. C) Thank you. D) You’re welcome.
( ) 50. ---- I think students need strict rules.
---- ________ Teenagers can’t control themselves.
A) I agree. B) Not at all.
C) Please help them. D) I don’t like it.
plete the following passage with the words or phrases in the box. Each can only be used once (将下列单词或词组填入空格。每空限填一词,每词只能填一次) (共8分)
A. experience B. ways C. afford D. find out E. quickly F. local G. serious H. century I. politely
March 5 is “Lei Feng Day”. It started fifty years ago. Now half a ____51_____has passed. Is the spirit (精神)of Lei Feng outdated(过时的)?Some people have shown us that it’s not. But people have also changed the ways in which they help others.Zhao has been a volunteer for 18 years. She still remembers her ____52_____ at a nursing home several years ago. An old man held her hand and said: “You don’t need to do anything for us. Seeing young people here is all we need.”Those words made Zhao think: in what ____53_____ can we better help people “Every person does what they can, no matter how small it is, to give out positive energy(正能量). And before we lend a helping hand, we should ____54_____ what they want,” Zhao said to the Qilu Evening News.As well as Zhao, other people have shown their understanding of the spirit of Lei Feng. This past January, beginning with an online post, “noodle fever” swept Zhengzhou, Henan. One ____55_____ man, Li Gang, 42, said in his post that he had a ____56_____ illness and needed a lot of money for an operation to fight it. However, what he asked for wasn’t charity, but for more people to come to eat noodles at his restaurant. Li’s post spread ____57_____. Soon his restaurant was filled with customers every day and Li was able to ____58_____ to have his operation on Feb. 2.In this way, people could help Li without hurting his dignity(自尊).
plete the sentences with the given words in their proper forms(用括号中所给单词 的适当形式完成下列句子) (共8分)
59. The little girl shouted loudly when she saw two ________. (mouse)
60. Our classroom is on the ________ floor in that building. (three)
61. The weather in April is ________, so you’d better take more clothes with you. (change)
62. Safety is important to every _________, so we should obey the rules.(city)
63. You can look up the ________ of the new word in the dictionary.(mean)
64. The boy was clever enough to ________ the problem .(solution)
65. It was ________ for John to make so many mistakes because he was good at English.(usual)
66. Boys and girls, watch ________ and try to find out something strange.(care)
V. Rewrite the following sentences as required(根据所给要求,改写下列句子。每空格限填一词) (共14分)
67. Joe did the homework in the classroom yesterday. (改为一般疑问句)
________ Joe _______ the homework in the classroom yesterday
68. Tom spent two hours finishing his report last night. (保持句意基本不变)
It __________ Tom three hours __________ finish his report last night..
69. The students in our class help the old lady clean her house once a week.(就划线部分提问)
__________ ___________ do the students in our class help the old lady clean her house
70. The teacher didn’t use the blackboard yesterday. He used a computer.(合并为一句)
The teacher used a computer ________ ________ the blackboard yesterday.
71. Anna invited me to her birthday party last month. (改为被动语态)
I ________ _________ to Anna’s birthday party last month.
72. Sometimes children are so young that they can’t tell the bad from the good. (保持句意基本不变)
Sometimes children are ________ young ________ tell the bad from the good.
73. "When will we have a spring outing " asked the students. (改为宾语从句)
The students asked ________they _________ have a spring outing.
Part 3 Reading and Writing(第三部分 读写)
VI.Reading comprehension (阅读理解):(共50分)
A. Choose the best answer(根据短文内容,选择最恰当的答案) ( 12分)
Once when I was a teenager, my father and I were standing in line to buy tickets for the circus. This is about the family standing ahead of us.
The family had eight children. Their clothes were not expensive but clean.
The children were well-behaved. They stood in line, two by two behind their parents, holding hands. They were excitedly talking about the clowns, elephants and other acts they would see that night. You could tell that they had never been to the circus before.
The tickets lady asked the father how many tickets he wanted. He proudly replied, “I want eight children’s tickets and two adult tickets please, so I can take my family to the circus”.
The ticket lady quoted(报)the price. The man stopped holding his hand. The man’s lips started to quiver(颤抖). He leaned toward her and asked again, “How much did you say ”
The ticket lady quoted the price again. The man didn’t have enough money. How was he supposed to turn and tell his eight kids that he couldn’t take them to the circus.
My dad put his hand into his pocket, pulling out a $20 bill and dropped it on the ground, though we weren’t rich. Then he reached down, picked up the bill, tapped the man on the shoulder and said, “Excuse me, sir, this fell out of your pocket.”
The man knew what was going on. He looked into my dad’s eyes, he replied, “Thank you, thank you, sir. This really means a lot to me and my family.”
My father and I went back to our car and drove home. We didn’t get to see the circus that night, but we didn’t care.
74. The children were talking about ________ .
A) clowns B) other acts they would see that night
C) elephants D) all the above
75. The underlined word ‘well-behaved’ in the third paragraph means ________.
A) holding hands B) talking excitedly
C) showing good manners D) showing bad manners
76. How many tickets would the man buy altogether
A) six B) eight
C) ten D) twelve
77. Why was the man disappointed when he heard the price of the ticket
A) Because he had lost his money.
B) Because he didn’t want to buy them.
C) Because he thought the circus was dull.
D) Because he didn’t have enough money for tickets.
78. Which of the following is NOT True
A) The family didn’t go to the circus that night.
B) The writer and his father helped the family.
C) The father couldn’t afford the tickets.
D) The writer didn’t go to the circus that night.
79. From the passage we know that the big family was poor ________.
A) but worked very hard
B) and they felt very sad
C) but they were very happy
D) and they often asked for help from others
B. Choose the words or expressions and complete the passage(选择最恰当的单词或词语完成短文)(12分)
The impression(印象) you make at the beginning of an interview is very important. Interviewers often decide to hire someone in the first three minutes of the interview. They judge you by your appearance, attitude (态度) and manners.
A friendly smile when you walk into the room is important. A smile shows a 80 and positive attitude. When you introduce yourself, look into the interviewer. Some interviewers offer a hand-shake, others don’t.
Try to be as 81 as possible. But pay attention to your body language. The way you sit, walk, use your voice and show feeling on your face are all parts of your body language. It makes the interviewer know how you feel about yourself. Are you feeling positive about yourself Your abilities Your interest in the job
Speak clearly and loudly enough. show interest and enthusiasm(热情) in your 82 . When you speak, look at the interviewer. Also don’t say negative things about yourself.
Listen to questions carefully. 83 you don’t understand a question, ask the interviewer to repeat or explain.
"I’m sorry, but I didn’t catch that. I’m not sure exactly what you mean."
Almost everyone is nervous in a job interview. Interviewers know that they don’t expect you to be completely 84 and relaxed. But they expect you to try to control your nervousness. They expect you to show confidence in your ability to do the job.
At the end of the interview, 85 the interviewer for her or him. It’s a good idea to send a short thank-you letter right after the interview, or deliver it by hand.
80. A)confident B) dissatisfied C) unhappy D) excited
81. A) smart B) nervous C) natural D) strict
82. A) sound B) voice C) manner D) action
83. A) Unless B) If C) Until D) As
84. A) quiet B) silent C) calm D) still
85. A) praise B) thank C) admire D) greet
C. Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给))(14分)
Wonder why you can get angry so easily while your friend smiles all the time It’s p___86___ because you both have different personalities(性格) .
Personality is also about how people think, behave, and react(反应) to e__87____ around them from day to day.
So what makes people think and behave in certain ways
Part of the reason is that people are born like this. A baby gets its blood type, genes(基因)and other physical things when it’s still inside its mother. These things may help decide what the baby will be l__88____.
But one’s personality doesn’t stop here. Family life, school learning and life experience can also make you the person you are. This doesn’t mean it’s i__89____ to change your personality. You can always try to make yourself better. Don’t get too worried about your weak points. Just a__90____ them. This is a good way to start making changes.
If you don’t know how to make friends, find out why. Is it because you are too s___91___ Tell yourself to smile at people. Start talking to people using warm greetings.
Don’t give yourself a hard time about it all. It’s not easy to change life h___92___ in one night. Keep working at it. One day you’ll see that you can turn over a new leaf and be a new one.
D.Answer the questions(根据短文内容回答下列问题)(12分)
If you go into the forest with friends, stay with them .If you don’t, you may get lost. If you do get lost, this is what you should do.
Sit down and stay where you are. Don’t try to find your friends. Let them find you. You can help them to find you by staying in one place. That’s the most important thing you should do.
There is another way to help your friends or other people to find you. Give them a signal(信号)outing or whistling three times. Stop. Then shout or whistle three times again. Any signal given three times is a call for help.
Keep on shouting or whistling, always three times together. When people hear you, they will know that you are not just making noise for fun. They will let you know that they have heard your signal. they will give two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.
If you don’t think that you will get help before night comes, try to make a little house---cover up the hole with branches with lots of leaves. Make yourself a bed with leaves and grass.
When you need some water, you have to leave your little branches house to look for a stream. Don’t just walk away. Pick off small branches and drop them as you walk in order to find the way back.
93.When you go into forest with friends, what will you do
_________________________when I go into the forest.
94.If you are lost in the forest, can you go to find them
________,________________________________.
95.How can you let people believe that you are not just making noise for fun
I should____________________________________________________.
96.When can you know there is an answer to a call for help
_______________________________, it is an answer to a call for help.
97.When you don’t get help before night comes, what can you do
__________________________________________________________.
98.What do you think the most important thing is when you are lost
__________________________________________________________.
VII. Writing (作文): (共20分)
99. Write at least 60 words according to the given situation (根据所给情景写一封不少于60词的短文,标点符号不占格。)
Nowadays many students are busy with their study. They seldom help their parents with housework .What do you think of it Try to show your opinions and tell your own experience.
(现在,许多学生忙于学习而很少帮助家长做家务,你是怎么看待这种现象的,请给出自己的观点及自己的经历。)
2012学年奉贤区第二学期初三调研测试
英语录音材料及参考答案
Part 1
A.
1. Many students took part in the English reading contest last month and Tom got the first prize.(F)
2. The Smiths are from Beijing and they are visiting Huangpu River by ferry. (D )
3. Mary is a good girl and she always tidies up her own schoolbag by herself. (G )
4. Mr. Zhang is praising his daughter because she has written a good composition. ( E )
5. Jack’s father is a policeman and he always tells his son some interesting stories. ( B )
6.Yesterday there was a wonderful basketball match between Class Five and Class Eight. ( C )
B.
7. M: What’s your new English teacher like
W: He has black hair and brown eyes. He’s very tall.
Q: What colour is the new English teacher’s hair A
8. M: Mary, take an umbrella with you. It’s raining outside.
W: What strange weather! It was sunny this morning.
Q: How is the weather now D
9. M: What do you think of the dishes
W: Delicious! I think we will come again next week.
Q: Where does the dialogue probably take place C
10. M: Shall we go to the museum by bus or by underground
W: It’s not far away from here. Why not walk there on such a nice day
M: Ok. Let’s go.
Q: How will they go to the museum B
11. M: What are you going to do this weekend
W: I’m going to see my grandparents. What about you
M: I won’t go out. I’ll stay at home and go over my lessons. The final examination is coming.
Q: What is the boy going to do this weekend D
12. M: Shall we go out for a picnic this Sunday, Betty
W: Great. Simon! Let’s ask Tom to go with us.
M: OK. I’ll call him.
Q: How many people will go for the picnic C
13. M: Do you know why Lucy was absent yesterday
W: I was told she was ill in hospital.
M: Sorry to hear that. Shall we go to see her after school
Q: Why didn’t Lucy go to school yesterday B
14. M: What’s the time, Lisa
W: It’s 11 o’clock.
M: Oh, time for lunch. Are you ready to go
W: Sorry. I haven’t finished my homework yet. I think I’ll have to stay here for another ten minutes.
Q: What time will Lisa go for lunch C
15. M : Look! Here’s a new type of camera. Will you buy one
W: How much is it
M: 6,000 yuan.
W: It sounds like a waste of money. I don’t go out for sight seeing very often.
Q: What does the woman mean D
16. M:Good afternoon, madam. Can I help you
W:Well, I seem to have lost my handbag. I’m leaving for London tonight.
M:Oh, I’m sorry. Could you tell me what it looks like
W:It’s a small brown bag, made of plastic.
M:Fine. Have you got anything inside
W:Well, my passport and plane ticket, and some money.
M:Don’t worry. We’ll try to find it as soon as possible.
Q:Who are the speakers A
C.
A mother and her daughter lived in a village. Every night, the mother would lock the door with three locks, because she was afraid that a thief might come in. As time went by, the daughter became tired of her boring life there, and dreamed to go to the city to see the outside world. One day, she left home without telling her mother. “Forget me, Mum.” She thought.
But the outside world wasn’t as good as she thought .Eight years later, she came back home with a tired body and mind.
When she got home, it was dark. She knocked at the door, but nobody answered. Surprisingly, she found the door was unlocked. She came in and saw her mother was lying in her bed, sleeping. Tears ran down her face. Hearing the cry of her daughter, the mother woke up. They hugged and cried. Later, the daughter asked, “Mum, why didn’t you lock the door ” “I was afraid you wouldn’t be able to get in when you came back” Mum answered.
17.F 18.F 19.T 20.F 21. T 22.F 23. T
D.
Dear Lily,
My hometown is very small. Only a few hundred people live here. It has a river with an old stone bridge across it. There is a church and a school. They are next to each other. People usually go to church on Sunday. There are three teachers and thirty students in the school. On Main Street there is a hotel, a supermarket, a gas station, a bakery, a butcher’s shop and a book store.
We don’t have a hospital or a police station, but we have a doctor and a police officer. They live on opposite side of the river.
We don’t have a movie theater, but we can rent videos at the supermarket. If we want to go to a movie, we have to go to the next town. It is a 30-minute bus drive away. The bus stop is outside my house. I usually go to the movies with my mum every Saturday.
Best wishes and please write soon.
Alice
1. stone 2. thirty 3. hotel 4. live 5. videos 6. Saturday 7. Alice
Part 2
II. 31.A 32.D 33.C 34.A 35.B 36.D 37.B 38.B 39.D 40.C 41.A 42.A 43.C 44.A 45.D 46.B 47.C 48.B 49.C 50.A
III. 51. H 52. A 53. B 54. D 55. F 56. G 57. E 58.C
IV. 59. mice 60. third 61. changeable 62. citizen 63. meaning 64. solve 65. unusual 66. carefully
V. 67. Did, do 68. took, to 69. How often 70. instead of 71. was invited 72. too…to 73. when would
Part 3
A. 74. D 75.C 76. C 77. D 78. A 79. C
B. 80. A 81. C 82. B 83. B 84. C 85. B
C. 86. probably/possibly 87. everything 88. like 89. impossible 90. accept 91. shy
92. habits
D.
I will /should stay with them (when I go into the forest .)
No, I can’t / mustn’t.
I should keep on shouting or whistling always three times together.
When a signal is given twice, it is an answer to a call for help.
I can make a little house by myself.
(I think )The most important thing is to stay in one place.
VII.
Nowadays many students say they are too busy with their study and they don’t have time to help their parents with the housework. I don’t think they are true, that’s all excuses.
In my opinion, doing some housework such as washing our own clothes and making the bed is our own responsibility. It can also make us independent. We can’t depend on others all our life. Sharing the housework is helpful for us to set up good relationship with our parents. I think trying to do some housework can keep us healthy and strong, some hard housework can be regarded as a kind of physical exercise. And we can take care of ourselves better when we grow up.
On weekdays, I often help my parents clean my bed rooms every morning and wash dishes after supper. At weekends, washing clothes and mopping the floor is my duty. And I also help my parents carry something heavy from the supermarket.
As the saying goes’ One can't make a big success without being self reliant’, so I think that students should often share the housework in our daily life.2012学年奉贤区调研测试
九年级数学 201304
(满分150分,考试时间100分钟)
一、选择题:(本大题共6题,每题4分,满分24分)
[每小题只有一个正确选项,在答题纸的相应题号的选项上用2 B铅笔填涂]
1.与无理数最接近的整数是(▲)
A.1; B.2 ; C.3; D.4;
2.下列二次根式中最简二次根式是(▲)
A.; B. ; C.; D.;
3.函数的图像经过的象限是(▲)
A.第一、二、三象限; B.第一、二、四象限;
C.第一、三、四象限; D.第二、三、四象限;
4.一个不透明的盒子中装有5个红球和3个白球,它们除颜色外都相同.若从中任意摸出一个球,则下列叙述正确的是(▲)
A.摸到红球是必然事件;   B.摸到白球是不可能事件;  
C.摸到红球和摸到白球的可能性相等;  D.摸到红球比摸到白球的可能性大;
5.对角线相等的四边形是(▲)
A.菱形; B.矩形; C.等腰梯形; D.不能确定;
6.已知两圆半径分别为2和3,圆心距为,若两圆没有公共点,则下列结论正确的是(▲)
A.; B.; C.或; D.或;
二、填空题:(本大题共12题,每题4分,满分48分)
【请将结果直接填入答题纸的相应位置】
7.计算:= ▲ ;
8.分解因式:= ▲ ;
9.函数的定义域是 ▲ ;
10.方程的解是 ▲ ;
11.已知关于x的一元二次方程有两个不相等的实数根,则实数m的取值范围是 ▲ ;
12.如果点A、B在同一个反比例函数的图像上,点A的坐标为(2,3),点B横坐标为3,那么点B的纵坐标是 ▲ ;
13.正多边形的中心角为72度,那么这个正多边形的内角和等于 ▲ 度;
14. 如图,已知直线AB和CD相交于点O, ,, 则的度数是 ▲ 度;
15.如图,已知E=C,如果再增加一个条件就可以得到,那么这个条件可以是 ▲ (只要写出一个即可).
16.梯形ABCD中,AB∥DC,E、F分别是AD、BC中点,DC=1,AB=3,设,如果用表示向量,那么 = ▲ ;
17.我们把梯形下底与上底的差叫做梯形的底差,梯形的高与中位线的比值叫做梯形的纵横比,如果某一等腰梯形腰长为5,底差等于6,面积为24,则该等腰梯形的纵横比等于 ▲ ;
18.如图,在中,,,,点M是AB边的中点,将绕着点M旋转,使点C与点A重合,点A与点D重合,点B与点E重合,得到,且AE交CB于点P,那么线段CP的长是 ▲ ;
三、解答题:(本大题共7题,满分78分)
19.(本题满分10分)
计算:;
20.(本题满分10分)
解不等式组:,并把它的解集在数轴上表示;
21.(本题满分10分,第(1)小题4分,第(2)小题6分)
如图,已知:在△ABC中,AB=AC,BD是AC边上的中线,AB=13,BC=10,
(1)求△ABC的面积;
(2)求tan∠DBC的值.
22.(本题满分10分,第(1)小题4分,第(2)(3)小题各3分)
我区开展了“关爱老人从我做起”的主题活动。在活动中随机调查了本区部分老人与子女同住情况,根据收集到的数据,绘制成如下统计图表(不完整)
老人与子女同住情况百分比统计表:
老人与子女同住情况 同住 不同住(子女在本区) 不同住(子女在区外) 其他
百分比 50% 5%
老人与子女同住人数条形图:
据统计图表中提供的信息,回答下列问题:
(1)本次共抽样调查了▲ 位老人,老人与
子女同住情况百分比统计表中的= ▲ ;
(2)将条形统计图补充完整;(画在答题纸相对
应的图上)
(3)根据本次抽样调查,试估计我区约15万老人
中与子女“不同住”的老人总数是▲ 人;
23.(本题满分12分,每小题满分各6分)
如图,已知是等边三角形,点是延长线上的一个动点,
以为边作等边,过点作的平行线,分别交的延长线于点,联结.
(1)求证:;
(2)如果BC =CD, 判断四边形的形状,并说明理由.
24.(本题满分12分,每小题4分)
如图,已知二次函数的图像经过点B(1,2),与轴的另一个交点为A,点B关于抛物线对称轴的对称点为C,过点B作直线BM⊥轴垂足为点M.
(1)求二次函数的解析式;
(2)在直线BM上有点P(1,),联结CP和CA,判断直线CP与直线CA的位置关系,并说明理由;
(3)在(2)的条件下,在坐标轴上是否存在点E,使得以A、C、P、E为
顶点的四边形为直角梯形,若存在,求出所有满足条件的点E的坐标;
若不存在,请说明理由。
25.(本题满分14分,第(1)小题5分,第(2)小题5分,第(3)小题4分)
如图,已知AB是⊙O的直径,AB=8, 点C在半径OA上(点C与点O、A不重合),过点C作AB的垂线交⊙O于点D,联结OD,过点B作OD的平行线交⊙O于点E、交射线CD于点F.
(1)若=,求∠F的度数;
(2)设写出与之间的函数解析式,并写出定义域;
(3)设点C关于直线OD的对称点为P,若△PBE为等腰三角形,求OC的长.
奉贤区初三调研考数学卷参考答案 201304
一 、选择题:(本大题共8题,满分24分)
1.B ; 2.A; 3.C; 4.D ; 5.D; 6.D;
二、填空题:(本大题共12题,满分48分)
7.; 8.; 9.; 10.;
11.; 12.2; 13.540; 14.38;
15.B=D(等); 16.; 17.; 18.;
三.(本大题共7题,满分78分)
19. (本题满分10分)
计算:;
解:原式= ----------------------------(每个值得2分,共8分)
--------------------------------------------------------------------------------------(2分)
20.(本题满分10分)
解不等式:
解:由(1)得:--------------------------------------------------------------------------(3分)
由(2)得:----------------------------------------------------------------(3分)
∴不等式组的解集是:------------------------------------------------------------------(2分)
解集在数轴上正确表示。---------------------------------------------------------------------(2分)
21.(本题满分10分,每小题满分各5分)
(1)过点A作AH⊥BC,垂足为点H,交BD于点E-----------------------(1分)
∵ AB=AC=13, BC=10 ∴ BH=5--------------------------------------(1分)
在Rt△ABH中,-------------------------------------------------(1分)
∴---------------------------------------------(1分)
(2) ∵BD是AC边上的中线 ∴点E是△ABC的重心
∴EH== 4 -------------------------------------------------------------------------------(3分)
∴在Rt△EBH中,----------------------------------------------(3分)
22.(本题满分10分,第(1)小题4分,第(2)(3)小题各3分)
(1)500, 30%------------------------------------------------------------------------(各2分)
(2)作图准确-----------------------------------------------------(3分)
(3)97500--------------------------------------------------------(3分)
23.(本题满分12分,每小题满分各6分)
(1)∵等边和等边
∴, ∠CAB=∠EAD=60°---------------------------------(1分)
∵∠BAE+∠EAC = 60°,∠DAC+∠EAC = 60°
∴∠BAE=∠CAD----------------------------------------------------------------------------(2分)
∴ ----------------------------------------------------------------------(3分)
(2) ∵ ∴∠ABE=∠ACD, BE=CD-------------------------(1分)
∵∠ABC=∠ACB=60°
∴ ∠ABE=∠ACD=∠BCG= 120° ∴∠DBE= 60°
∴∠BCG+∠DBE= 180° ∴BE//CG---------------------------------------------(2分)
∵BC//EG ∴四边形是平行四边形----------------------------(1分)
∵BC=CD ∴BE=BC---------------------------------------------- ---------(1分)
∴四边形平行四边形是菱形。-------------------------------- ---------(1分)
24.(本题满分12分,每小题各4分)
(1)∵点B(1,2)在二次函数的图像上,
∴ ---------------------------------------------------------------------------------------(3分)
∴二次函数的解析式为---------------------- -------------------(1分)
(2)直线CP与直线CA的位置关系是垂直-----------------------------------------------(1分)
∵二次函数的解析式为
∴点A(3,0) C(2,2) ----------------------------------------------------------------------(1分)
∵P(1,)
∴ ------------------------------------------(1分)
∴ ∴∠PCA=90°---------------------------------------(1分)
即CP⊥CA
(3) 假设在坐标轴上存在点E,使得以A、C、P、E为顶点的四边形为直角梯形,
∵∠PCA=90°
则①当点E在轴上,PE//CA
∴△CBP∽△PME ∴∴∴----------------------------(2分)
②当点E在轴上, PC//AE
∴△CBP∽△AOE ∴∴∴---------------------------(2分)
即点Q的坐标、时,以A、C、P、E为顶点的四边形为直角梯形。
25.(本题满分14分,第(1)小题5分,第(2)小题5分,第(3)小题4分)
(1)联结OE-----------------------------------------------------------------------------------(1分)
∵= ∴∠BOE=∠EOD-------------------------------------------------------(1分)
∵OD//BF ∴∠DOE=∠BEO
∵OB=OE ∴∠OBE=∠OEB-------------------------------------------------------(1分)
∴∠OBE=∠OEB=∠BOE=60°-----------------------------------------------------------(1分)
∵∠FCB=90°∴ ∠F=30°-----------------------------------------------------------------(1分)

∵OD//BF ∴ ----------------------------------------------------(1分)
∴ ∴ ---------------(2分)
(3)∵∠COD=∠OBE,∠OBE=∠OEB,∠DOE=∠OEB
∴ ∠COD=∠DOE, ∴C关于直线OD的对称点为P在线段OE上-----------(1分)
若△PBE为等腰三角形
当PB=PE,不合题意舍去;-------------------------------------------------(1分)
当EB=EP -------------------------------------------(1分)
当BE=BP 作BM⊥OE,垂足为M,
易证△BEM∽△DOC∴ ∴
整理得: (负数舍去)----------------------(1分)
综上所述:当OC的长为或时,△PBE为等腰三角形。
第15题
第18题
第14题
3
2
10
0
-1
-3
-2
第21题
A
D
B
C
A
D
C
B
F
E
G
第23题
A
P
O
x
B
M
y
第24题
第25题

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