质量调研卷有哪些题(质量调研报告最佳范文)

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闵行区2008学年第二学期九年级质量调研考试 数学答案

闵行区2008学年第二学期九年级质量调研考试

数学试卷参考答案以及评分标准

一、选择题:(本大题共6题,每题4分,满分24分)

1.C;2.A;3.B;4.D;5.B;6.C.

二、填空题:(每题4分,满分48分)

7. ; 8. ; 9. ; 10.x = 2; 11.减小; 12. ;

13.1350; 14.4; 15. ; 16.17; 17. ; 18.1或7.

三、解答题:(本大题共7题,满分78分)

19.(本题满分10分)

解:由① 得 .………………………………………………………………(2分)

由② 得 .…………………………………………………………(2分)

解得 .………………………………………………………………(2分)

所以,原不等式组的解集是 .…………………………………………(2分)

在数轴上表示不等式组的解集,正确得2分,未去掉端点,扣1分.

20.(本题满分10分)

解:两边同时乘以最简公分母 ,得

.…………………………………………(2分)

整理后,得 . ………………………………………………(3分)

解得 , .………………………………………………(2分)

经检验: 是原方程的增根,舍去; 是原方程的根.……………(2分)

所以,原方程的根是x = 4.………………………………………………………(1分)

21.(本题共2小题,第(1)小题4分,第(2)小题6分,满分10分)

解:(1)设y与x之间的函数解析式是 (k ≠ 0).

根据题意,得 …………………………………………(2分)

解得 …………………………………………………(1分)

所以,所求的函数解析式是 .………………………………(1分)

(2)设这一天的销售价为x元.…………………………………………………(1分)

根据题意,得 .…………………………(2分)

整理后,得 .……………………………………(1分)

解得 , .………………………………………(1分)

答:这一天的销售价应为33元或50元.…………………………………(1分)

22.(本题共2小题,第(1)小题5分,第(2)小题5分,满分10分)

证明:(1)∵PC // OB,PD // OA,

∴四边形OCPD是平行四边形,且∠ECP =∠O,∠FDP =∠O. …(1分)

∴PC = OD,PD = OC,∠ECP =∠FDP. ……………………………(1分)

∵PE⊥OA,PF⊥OB, ∴∠PEC =∠PFD = 90°.

∴△PCE∽△PDF.………………………………………………………(1分)

∴ ,即得 . ………………………………………(1分)

∴ .……………………………………………………(1分)

(2)当点P在∠AOB的平分线上时,四边形CODP是菱形.……………(1分)

∵当点P在∠AOB的平分线上时,由PE⊥OA,PF⊥OB,得PE = PF.

于是,由△PCE∽△PDF,得 ,即得PC = PD.………(2分)

∵四边形CODP是平行四边形,∴四边形CODP是菱形.…………(1分)

当点P不在∠AOB的平分线上时,可得PE ≠ PF.即得PC ≠ PD.

∴当点P不在∠AOB的平分线上时,四边形CODP不是菱形.……(1分)

23(本题共2小题,第(1)小题5分,第(2)小题7分,满分12分)

解:(1)联结AD.

∵AB = AC = 8,D是边BC的中点,∴AD⊥BC.………………………(1分)

在Rt△ABD中, ,∴BD = CD = 5.……………………(1分)

∵∠EDC =∠B +∠BED =∠EDF +∠CDF,∠EDF =∠B,

∴∠BED =∠CDF.…………………………………………………………(1分)

∵AB = AC,∴∠B =∠C.

∴△BDE∽△CFD.∴ .………………………………………(1分)

∵BE = 4, .………………………………………………………(1分)

(2)∵△BDE∽△CFD,∴ .………………………………………(1分)

∵BD = CD,∴ .…………………………………………………(1分)

又∠EDF =∠B,∴△BDE∽△DFE.∴∠BED =∠DEF.………………(1分)

∵EF // BC,∴∠BDE =∠DEF.……………………………………………(1分)

∴∠BDE =∠BED.∴BE = BD = 5.………………………………………(1分)

于是,由AB = 8,得AE = 3.

∵EF // BC,∴ .…………………………………………………(1分)

∵BC = 10,∴ .即得 .……………………………………(1分)

24.(本题共2小题,第(1)小题5分,第(2)小题7分,满分12分)

解:(1)∵二次函数 的图像经过点M(1,0),

∴ .……………………………………………………………(1分)

∴m = -3.……………………………………………………………………(1分)

∴所求函数的解析式是 .…………………………………(1分)

又 ,∴顶点坐标是(2,1).………………(2分)

(2)由(1)得二次函数图像的对称轴是直线x = 2,∴D(2,0).…………(1分)

由题意得,A( ,0)、B(0,b)、C(2,4 + b).……………………(2分)

∵对称轴直线x = 2与y轴平行,

∴△AOB∽△ADC.…………………………………………………………(1分)

∴ ,即 .………………………………(1分)

解得 , .……………………………………………………(2分)

经验证, , 都是满足条件的m的值.

25.(本题共3小题,第(1)小题4分,第(2)小题5分,第(3)小题5分,满分14分)

(1)证明:在边AB上截取线段AH,使AH = PC,联结PH.

由正方形ABCD,得∠B =∠BCD =∠D = 90°,AB = BC = AD.……(1分)

∵∠APF = 90°,∴∠APF =∠B.

∵∠APC =∠B +∠BAP =∠APF +∠FPC,

∴∠PAH =∠FPC.………………………………………………………(1分)

又∵∠BCD =∠DCE = 90°,CF平分∠DCE,∴∠FCE = 45°.

∴∠PCF = 135°.

又∵AB = BC,AH = PC,∴BH = BP,即得∠BPH =∠BHP = 45°.

∴∠AHP = 135°,即得∠AHP =∠PCF.………………………………(1分)

在△AHP和△PCF中,∠PAH =∠FPC,AH = PC,∠AHP =∠PCF,

∴△AHP≌△PCF.∴AP = PF.………………………………………(1分)

(2)解:⊙P与⊙G两圆的位置关系是外切.

延长CB至点M,使BM = DG,联结AM.

由AB = AD,∠ABM =∠D = 90°,BM = DG,

得△ADG≌△ABM,即得AG = AM,∠MAB =∠GAD.………………(1分)

∵AP = FP,∠APF = 90°,∴∠PAF = 45°.

∵∠BAD = 90°,∴∠BAP +∠DAG = 45°,即得∠MAP=∠PAG = 45°.(1分)

于是,由AM = AG,∠MAP =∠PAG,AP = AP,

得△APM≌△APG.∴PM = PG.

即得PB + DG = PG.………………………………………………………(2分)

∴⊙P与⊙G两圆的位置关系是外切.……………………………………(1分)

(3)解:由PG // CF,得∠GPC =∠FCE = 45°.…………………………………(1分)

于是,由∠BCD = 90°,得∠GPC =∠PGC = 45°.

∴PC = GC.即得DG = BP.………………………………………………(1分)

设BP = x,则DG = x.由AB = 2,得PC = GC = 2 – x.

∵PB + DG = PG,∴PG = 2 x.

在Rt△PGC中,∠PCG = 90°,得 .……………(1分)

即得 .解得 .………………………………………(1分)

∴当 时,PG // CF.………………………………………(1分)

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江苏省2013届高三下学期期初教学质量调研化学四校开学联考(南师大附中、淮阴中午、海门中学、天一中学)

2012-2013学年第二学期期初高三教学质量调研 化学试卷

本试卷分选择题和非选择题两部分,全卷满分120分。考试时间100分钟。

注意事项:

1.答题前,考生务必在答题纸姓名栏内写上自己的姓名、考试科目、准考证号等,并用2B铅笔涂写在答题纸上。

2.每小题选出正确答案后,用2B铅笔把答题纸上对应题号的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案。不能答在试题卷上。

3.考试结束,将答题纸交回。Mg-24 S-32 Cl-35.5 K-39 Fe-56 Cu-64 Zn-65

可能用到的相对原子质量: H-1 B-11 C-12 N-14 O-16 Na-23

选择题(共40分)

单项选择题:本题包括10小题,每小题2分,共计20分。每小题只有一个选项符合题意。

1、PM2.5是指大气中直径小于或等于2.5微米的颗粒物,是雾霾天气的主要原因,它主要来自化石燃料的燃烧,下列与PM2.5相关的说法不正确的是

A.大力发展电动车,减少燃油汽车的尾气排放量

B.开发利用各种新能源,减少对化石燃料的依赖

C.多环芳烃是强致癌物,能吸附在PM2.5的表面进入人体

D.PM2.5含有的铅、镉、铬、钒、砷等对人体有害的元素均是金属元素

2、下列化学用语正确的是

A. H2O2的电子式: B.CO2的比例模型:

C. 2-甲基-1-丁烯的结构简式: D.羰基硫(COS)的结构式:

3、在下列各溶液中,离子一定能大量共存的是

A. 能使紫色石蕊试液变红的溶液中:Fe2+、Na+、SO42-、NO3-

B. c(H+)∶c(OH-)=1∶2的水溶液中:Na+、K+、NO3-、ClO-

C. 水电离出的c(H+)=10-12mol/L中:Na+、Cu2+、Cl-、S2-

D. 加入Al能放出氢气的溶液中:NH4+、SO42-、Cl-、ClO-

4.设NA为阿伏加德罗常数的值,下列叙述正确的是

A.8.4gNaHCO3固体中含HCO3−数目为0.1NA

B.60g 二氧化硅中含Si-O键2NA

C.1molN2和3molH2合成氨,生成的NH3分子数为2NA

D.1 mol氯气与氢氧化钙完全反应生成氯化钙和次氯酸钙,转移的电子数为2NA

5.下列有关物质的性质或应用的说法中正确的是

A.石油的催化裂化及裂解可以得到较多的轻质油和气态烯烃

B.Si是一种非金属主族元素,其氧化物可用于制作计算机芯片

C.Mg、Fe等金属在一定条件下与水反应都生成H2和对应的氢氧化物

D.蛋白质溶液中加入浓的硫酸钠溶液,有沉淀析出,这种作用称为变性。

6. Q、W、X、Y、Z是原子序数依次增大的短周期元素,X、Y是金属元素,X的焰色呈黄色。五种元素核电荷数之和为54,最外层电子数之和为20。W、Z是同主族元素,Z的核电荷数是W的2倍。工业上一般通过电解氧化物的方法获得Y单质。则下列说法不正确的是

A. 原子半径:X>Y>Q>W

B. X、Y和W三种元素形成化合物的水溶液呈碱性

C. W的氢化物的稳定性比Z强

D. Q和W可形成原子个数比为1∶1和2∶1的化合物

7. 用下列实验装置完成对应的实验,能达到实验目的的是

8. 下列离子方程式表达正确的是

A. 硫化钠水溶液呈碱性的原因:S2-+2H2O H2S+2OH-

B. 向NH4Al(SO4)2溶液中滴入Ba(OH)2溶液使SO恰好完全沉淀:

2Ba2++4OH-+Al3++2 SO42-===2BaSO4↓+AlO+2H2O

C. 氧化亚铁溶于稀硝酸中:FeO+2H+===Fe2++2H2O

D. 用惰性电极电解NaCl溶液:2Na++2Cl-+2H2O 2 NaOH+H2↑+Cl 2↑

9.下列物质的转化在给定条件下能实现的是

① SO2 H2SO3 H2SO4 ② NH3 NO2 HNO3

③ CaCl2 CaCO3 CaO ④ NaAlO2 (aq) Al(OH)3 Al2O3

A.②③ B.①④ C.②④ D.③④

10.下列图示与对应的叙述一定正确的是

A.图1所示反应:X(g)+2Y(g) 3Z(g),b曲线表示的一定是增大压强

B.图2表明合成氨反应是放热反应,b表示在反应体系中加入了催化剂

C.图3所示,t 1℃时质量分数均为20 %的甲、乙两种溶液,升温到t 2℃时,两种溶液中溶质的质量分数仍然相等

D.图4所示,用水稀释pH相同的盐酸和醋酸,I表示醋酸,II表示盐酸,且溶液导电性:c>b>a

不定项选择题:本题包括5小题,每小题4分,共计20分。每小题只有一个或两个选项符合

题意。若正确答案只包括一个选项,多选时,该题得0分;若正确答案包括两个选项时,只

选一个且正确的得2分,选两个且都正确的得满分,但只要选错一个,该小题就得0分。

11.胡妥油(D)用作香料的原料,它可由A合成得到:

下列说法正确的是

A.若有机物A是由异戊二烯(C5H8)和丙烯酸(C3H4O2)加热得到的,则该反应类型属于加成反应

B.有机物B 既能发生催化氧化反应生成醛,又能跟NaHCO3溶液反应放出CO2气体

C.有机物C 的所有同分异构体中不可有芳香族化合物存在

D.有机物D分子中所有碳原子一定共面

12. 右图是一种锂离子电池充放电的工作示意图。放电时该电池的正负极反应式分别为:

负极:Li-e-===Li+ 正极:Li4Ti5 O12+3 Li++3e-=== Li7Ti5 O12

下列说法正确的是

A. K与N相接时,Li+由A极区迁移到B极区

B. 在整个充、放电过程中至少存在3种形式的能量转化

C. K与M相接时,A是阳极,发生氧化反应

D. 放电时当转移1 mol电子时应该有0.5 mol Li+从右槽迁移进左槽

13.下列有关实验方法和结论都正确的是

A.酸碱中和滴定时,锥形瓶需用待测液润洗2次,再加入待测液

B.联合制碱法是将二氧化碳和氨气通入饱和氯化钠溶液中生成碳酸钠

C.在浓度均为0.01 mol/L NaCl和Na2CrO4的溶液中滴加0.01 mol/L AgNO3溶液,先析出AgCl,则Ksp(AgCl)<Ksp(Ag2CrO4)

D.检验蔗糖水解产物具有还原性:在蔗糖水解后的溶液中先加入适量稀NaOH溶液中和,再加入新制的银氨溶液并水浴加热

14.下列溶液中微粒的物质的量浓度关系正确的是

A. 25℃时,NaB溶液的pH=8,c(Na+)–c(B-)=9.9×10-7mol/L

B. 25℃时,pH=2的HCOOH与pH=12的NaOH等体积混合:

c(HCOO-)+ c(H+)<c(Na+)+c(OH-)

C. 等物质的量浓度的NaClO、NaHCO3混合溶液中:

c(HClO)+c(ClO-)=c(HCO3-)+ c(H2CO3)

D. 室温下,向0.01 mo1·L-1NH4HSO4溶液中滴加NaOH溶液至中性:

c(Na+)>c(SO42-)>c(NH4+)>c(OH-)=c(H+)

15.炼铁的还原剂CO是由焦炭和CO2反应而得。现将焦炭和CO2放入体积为2L的密闭容器中,高温下进行下列反应:C(s)+CO2(g) 2CO(g) △H= Q kJ/mol。下图为CO2、CO的物质的量n随时间t的变化关系图。下列说法正确的是

A.1~3min时,v(CO) =v(CO2);

B.当容器内的压强不变时,该反应一定达到平衡

状态,且

C.若3min时温度由T1升高到T2,则QO,且

=4.7

D.5min时再充入一定量的CO,c、b曲线分别

表示n(CO)、n(CO2)的变化

非选择题 (共80分)

16. (14分) 锶(Sr)为第5周期ⅡA族元素。高纯六水氯化锶晶体(SrCl2·6H2O)具有很高的经济价值,61℃时晶体开始失去结晶水,100℃时失去全部结晶水。用工业碳酸锶粉末(含少量Ba、Fe的化合物等杂质)制备高纯六水氯化锶晶体的过程如图所示。

请回答下列问题:

(1)操作①加快反应速率的措施有 ▲ (任写一种方法即可)

(2)加入少量30% H2O2溶液的目的是 ▲

(3)步骤③中调节溶液PH至8—10,宜选用的试剂为______▲______(填序号)。

A.氨水 B.氢氧化锶粉末 C.氢氧化钠 D.氧化锶粉末

所得滤渣的主要成分是____▲___、 ▲ (填化学式)。

(4)步骤⑤中,洗涤氯化锶晶体选用少量冰水的原因是 ▲

工业上用热风吹干六水氯化锶,选择的适宜温度范围是________▲________。

A.50~60℃ B.70~80℃ C.80~100℃ D.100℃以上

(5)若滤液中Ba2+ 浓度为1×10-5mol/L,依据右表数据可以推算滤液中Sr2+物质的量浓度为________▲___________。

17.(14分)下图是一种治疗关节炎止痛药(F)的传统合成法路线图:

请回答下列问题:

(1)A→B的化学方程式为 ▲ 。

(2)C分子中手性碳原子数目为 ▲ ;D→E的反应类型 ▲ 。

(3)E在酸性条件下发生水解反应生成F和无机盐,该无机盐中的阳离子为 ▲ 。

(4)比F少5个碳原子的同系物X有多种同分异构体,其中满足下列条件的X的同分异构体结构简式为(写出任意一种) ▲ 。

①属于芳香族化合物,②苯环上只有1个取代基,③属于酯类物质

(5)改良法合成该关节炎止痛药(F)是以2-甲基-1-丙醇、苯为原料合成的,产率和原子利用率都比较高。试写出改良法合成该关节炎止痛药(F)的合成路线图(乙酸酐和其他无机试剂任选)。合成路线流程图示例如下:

CH3CH2OH CH2=CH2 Br-CH2CH2-Br

已知:①

18.(12分)NaNO3是重要的化工原料,可通过下列方法制备:

第一步:在吸收塔中,将硝酸生产中排出的尾气(体积分数:含0.5% NO、1.5% NO2)用纯碱溶液完全吸收,得到NaNO2、NaNO3和Na2CO3的混合液及CO2气体。

第二步:将吸收塔中的混合液送入转化塔中,加入50%HNO3溶液,同时通入足量的压缩空气搅拌,充分反应,得到 NaNO3和硝酸的混合液。

第三步:将转化塔中的混合液用纯碱中和后,经蒸发浓缩、冷却结晶、离心分离、干燥,得NaNO3成品。

已知:每生产1.0 t纯净的NaNO3固体,需消耗0.65 t无水Na2CO3、消耗氧气的体积为33.6 m3(标准状况下)和一定量的HNO3。生产过程中排出的尾气中均不含氮氧化物。

回答下列问题:

(1)第一步生产过程中发生反应的总化学方程式是 ▲ 。

(2)检验NaNO3成品中是否含少量的Na2CO3杂质的方法是 ▲ 。

(3)生产过程中Na2CO3的利用率是 ▲ (计算结果精确到小数点后两位)。

(4)生产1.0 t纯净的NaNO3固体,可以处理硝酸生产中排出的尾气的体积至少为 ▲ m3

(标准状况下)。

19.(14分)硼是一种重要的非金属元素,单质硼可以通过硼镁矿Mg2B2O5·H2O来制取。

第①步:将硼镁矿用浓碱NaOH溶液溶解,过滤得NaBO2溶液。

第②步:将NaBO2浓缩后通入CO2调节碱度,结晶析出硼砂Na2B4O7·10H2O。

第③步:将硼砂溶于水后,用H2SO4调节酸度,过滤得H3BO3晶体。

第④步:加热硼酸使之脱水。

第⑤步:脱水产物用镁还原即得粗单质硼。请回答下列问题:

(1)第①步和第⑤步的化学方程式分别为 ▲ , ▲ 。

(2)将制得的粗硼在一定条件下反应全部生成BI3,然后BI3热分解可以得到纯净的单质硼。0.20g粗硼制成的BI3分解得到的I2全部被收集后,用 2.00mol/LNa2S2O3溶液滴定,用去27.00mL Na2S2O3溶液(已知:I2+2S2O32-=2I-+S4O62-)。

①盛装Na2S2O3溶液的为 ▲ (填“酸式”或“碱式”)滴定管。

滴定过程中所用的指示剂为 ▲ ,滴定终点的现象是 ▲

②粗硼中硼的含量为 ▲ 。

(3)上述制得的硼砂晶体(Na2B4O7·10H2O)还可制备过

硼酸钠,它是一种优良的漂白剂,被广泛应用于洗衣粉、

漂白粉、洗涤剂中。巳知纯品过硼酸钠晶体中各元素的

物质的量之比为n(Na):n(B):n(H):n(O)=

l:1:n:7。将制得的纯品样品在70℃以上加热将逐步

失去结晶水,测得纯品质量随温度的变化如下图所示,则T3时所得晶体的化学式为:

▲ 。若反应温度控制不当,所得的过硼酸钠晶体中将混有NaBO2,则产品中钠的质量分数 ▲ (填“升高”、“降低”或“不变”)。

20.(14分)尿素(H2NCONH2)是一种非常重要的高氮化肥,在工农业生产中有着非常重要的地位。

⑴工业上合成尿素的反应如下:

2NH3(l)+CO2(g) H2O(l)+H2NCONH2 (l) △H=-103.7 kJ·mol-1

下列措施中有利于提高尿素的产率的是_________▲________。

A.采用高温 B.采用高压 C.寻找更高效的催化剂

⑵合成尿素的反应在进行时分为如下两步:

第一步:2NH3(l)+CO2(g) H2NCOONH4(氨基甲酸铵) (l) △H1

第二步:H2NCOONH4(l) H2O(l)+H2NCONH2(l) △H2

某实验小组模拟工业上合成尿素的条件,在一体积为0.5 L密闭容器中投入4 mol氨和1mol二氧化碳,实验测得反应中各组分随时间的变化如下图Ⅰ所示:

①已知总反应的快慢由慢的一步决定,则合成尿素总反应的快慢由第 ▲ 步反应决定,总反应进行到 ▲ min时到达平衡。

②第二步反应的平衡常数K随温度的变化如上右图Ⅱ所示,则△H2 ▲ 0(填“>”“<”或“=”)

⑶在温度70—95℃时,工业尾气中的NO、NO2可以用尿素溶液吸收,将其转化为N2

①尿素与NO、NO2三者等物质的量反应,化学方程式为 ▲ 。

②已知:N2(g)+O2(g)= 2NO(g) △H=180.6 kJ·mol—1

N2(g)+3H2(g)= 2NH3(g) △H= —92.4kJ·mol—1

2H2(g)+O2(g)= 2H2O(g) △H= —483.6 kJ·mol—1

则4NO(g)+4NH3(g)+O2(g)= 4N2(g)+6H2O(g)△H= ▲ kJ·mol-1。

⑷尿素燃料电池结构如下图所示。其工作时负

极电极反应式可表示为 ▲ 。

21. (12分)本题包括A、B两小题,分别对应于“物质结构与性质”和“实验化学”两个选修

模块的内容。请选择其中一题,并在相应的答题区域内作答。若两题都做,则按A题评分。

A.由徐光宪院士发起, 院士学子同创的《分子共和国》科普读物最近出版了,全书形象生动地戏说了BF3、TiO2、CH3COOH、CO2、NO、二茂铁、NH3、HCN、 H2S、O3、异戊二烯和萜等众多“分子共和国”中的明星。

(1)写出Fe2+的核外电子排布式 。

(2)下列说法正确的是 。

a.H2S、O3分子都是直线形

b.BF3和NH3都是含有极性键的非极性分子

c.CO2、HCN分子的结构式分别是:O=C=O、H—C≡N

d.CH3COOH分子中碳原子的杂化方式有:sp2、sp3

(3)NO是人体中的信号分子,有关说法正确的 。

a.原子半径N大于O b.非金属性O大于N

c.NO+的结构式为:〔N≡O〕+   d.NO形成的晶体是分子晶体

(4)TiO2的天然晶体中,最稳定的一种晶体结构如右图1,白球表示   原子。

(5)乙酸熔沸点很高,是由于存在以分子间氢键缔合的二聚体(含一个环状结构),请画出

这二聚体的结构: 。

(6)二茂铁(C5H5)2Fe是Fe2+与环戊二烯基形成的一类配合

物,实验室测定铁的含量:可用配位剂邻二氮菲

( ),它能与Fe2+形成红色配合物(如右图2),

该配离子中Fe2+与氮原子形成配位键共有 个。

21B.(12分)滴定法是科研和生产中测定溶液中物质浓度的常用方法。

(1)莫尔法是一种沉淀滴定法,以K2CrO4为指示剂,用标准硝酸银滴定待测液,进而测定溶液中Cl—的浓度, [Ksp(AgCl) =1.56×10—10,Ksp(Ag2CrO4)=1.10×10—12,Ag2CrO4为砖红色]

①滴定终点的现象是_________________;

②已知该滴定适宜的酸度范围是pH 6.5~10.5,且当溶液中有铵盐存在,c(NH4+)<0.05mol/L时,应将溶液的pH控制在6.5~7.2。下列有关说法你认为合理的有__________。

a.若溶液pH<6.5,则Cr2O72—+H2O 2CrO42—+2H+平衡左移,导致Ag2CrO4沉淀过迟,影响实验结果

b.若溶液中有铵盐存在时,当pH>7.2,则有可能因为生成[Ag(NH3)2]+,影响实验结果

c.滴定时应剧烈摇动,以使被AgCl沉淀吸附的Cl—及时释放出来,防止滴定终点提前

(2)氧化还原滴定是水环境监测常用的方法,可用于测定废水中的化学耗氧量(单位:mg/L——每升水样中还原性物质被氧化需O2的质量)。某废水样100.00mL,用硫酸酸化后,加入0.01667mol/L的K2Cr2O7溶液25.00mL,使水样中的还原性物质在一定条件下完全被氧化。然后用0.1000mol/L的FeSO4标准溶液滴定剩余的Cr2O72—,实验数据记录如下:

实验数据

实验序号

FeSO4溶液体积读数/mL

滴定前

滴定后

第一次

0.10

16.20

第二次

0.30

15.31

第三次

0.20

15.19

①完成离子方程式的配平:

___Cr2O72—+___Fe2++____ _______ ____Cr3++____Fe3++____H2O

②计算废水样的化学耗氧量。 (写出计算过程,结果精确到小数点后一位。)

南师附中、天一中学、淮阴中学、海门中学、南师附中江宁分校2013届高三下学期期初教学质量调研参考答案

1—10、D D B A A D B A B B

11—15 A BC D AD CD

16、(14分,每空2分)

(1)升高温度,增大盐酸浓度,充分搅拌等

(2)氧化Fe2+转化成Fe3+ (3)BD;BaSO4、Fe(OH)3

(4)减少洗涤时因溶解造成的损失 A

(5)不大于0.03mol/L

17.(14分,最后1题4分,其余每空2分)

HF

(1) +(CH3CO)2O → +CH3COOH

(2)1 消去反应

(3)NH4+

(4)

(5)

18.(12分,每空3分)

(1)NO+3NO2+2Na2CO3=3NaNO2+NaNO3+2CO2 (3分)

(2)取少量NaNO3样品溶于水,滴入CaCl2溶液,若有白色沉淀生成,再加盐酸,沉淀又消失,说明有Na2CO3存在;否则无Na2CO3。 (3分)

(3)0.96 (3分) (4)4480 (3分)

19. (14分,每空2分)

(1)Mg2B2O5·5H2O+2NaOH=2NaBO2+2Mg(OH)2↓+4H2O

B2O3+3Mg=3MgO+2B

(2) ①碱式滴定管、淀粉溶液、蓝色退去且30s内不退色

②97.2%

(3)NaBO3

20.(14分,每空2分)

⑴B

⑵①2  55 ②>

⑶①CO(NH2)2+NO+NO2=CO2+2N2+2H2O

②-1446.6KJ·mol-1

⑷CO(NH2)2+H2O-6e-=CO2+N2+6H+

21.(12分)

A. (1)、Fe2+的核外电子排布式:[Ar]3d6 (2)、cd (3)、abcd

(4)、氧(O) (6)、6

B.(1)①滴入最后一滴标准溶液,生成砖红色沉淀 (2分)

②abc (3分)

(2)①_1__Cr2O72—+_6Fe2++_14 H+ __2Cr3++_6_Fe3++_7H2O (2分)

② 分析实验数据记录表,第一次实验数据有误,故剔除这一数据。

消耗的FeSO4标准溶液平均体积为:[ (15.31-0.30)+(15.19-0.20)]/2=15.00mL (1分)

则废水中消耗的K2Cr2O7总物质的量为: 0.01667mol/L×0.025L-1/6×15.00×10-3L×0.1000mol/L =1.667×10-4mol=0.1667mmol    (2分)

据2K2Cr2O7~3 O2 可知,废水中化学耗氧量

m(O2)= (0.1667mmol×1.5×32g/mol)÷0.1000L=80.0mg/L (2分

普陀区2008年初一学生结业考试质量调研科学试卷答案

普陀区2008年初一学生结业考试质量调研

科学试卷答案

闭卷部分

一、填空题

1、盐,水。2、肾脏,一致。3、高,低。4、电,热,热,断路器。5、A,合理即可。6、动、势。7、呼吸。8、振动、真空、能。9、嗅觉。

二、单一选择题

10

11

12

13

14

15

16

17

18

19

B

C

D

B

D

B

B

B

B

C

三、图线题

20、精子,卵子。

21、过滤,漏斗,烧杯,烧杯B的口没有贴着玻璃棒。

22

N

23、直线,2。

开卷部分

四、实验与探究

24、(1)量筒,(2)酒精灯,(3)烧杯、漏斗,(4)蒸发皿。

25、B.

26、(2)粗细,张力(松紧),振动部分的长度,(3)

影响音调高低的因素

(在其他条件相同的情况下)

音调的高低

弦线振动部分

的长度

(4)长度,长(短),低(高),

(5)实验结果更准确,更具有科学性。

27、(1)弹簧测力计,天平(秤),

(2)720,7.2,

(3)720,2.4。

28、(1)二氧化碳,(2)吸收钟罩内空气中的二氧化碳,(3)黑暗处理,(4)对照实验。

五、分析与综合

29、(1)草,老鼠、野兔、鹿,蛇、山狮,(2)第一层——草,(3)都不会有较大影响,蛇、鹿、山狮的数量都不会有明显变化。

30、(1)略

(2)种在两个花盆中的植物B20天时的高度为30㎝,而种在一个花盆中的植物B20天时的高度只有13㎝。两者都有充足的阳光和水分,区别在于土壤中养分情况不同,分开种的比种在一起的能获得更多的养分,故生长情况良好。

(3)植物A高8㎝。理由:从第15天到20天植物A都没有继续再生长,说明这株植物已停止生长。

31、(1)音乐、呼叫声、拍门声、高呼声,

(2)烧焦的气味,

(3)用湿毛巾捂住口鼻迅速撤离,拨打火警电话等。

小学二年级语文下册期中质量调研卷试题

一、字词句乐园。

1、抄写下面的汉字,注意写得正确、入体、整洁。(4分)

水送山迎争奇斗艳

2、看拼音写词语。(20分)

tuányuánduǎncūpènɡqiǎomìfēngchìbǎng

jiānyìnɡfǔmōxiàojìngxiōngèshènglì

3、用“”画出正确读音或字。(8分)

二年级语文下册期中质量调研卷:乃(nǎilǎi)将军(jiānɡjiànɡ)骆驼(tuótuo)(狠恨)不得

针(zhēngzhēn)晾晒(shàisài)勉强(qiǎngqiáng)(篮蓝)球

4、想想课文内容,写词语。(10分)

桂林山水水秀画

蚕姑娘又白又旧衣新房

沉香习练功劈山母

木兰女扮装替从军

5、把下列句子补充完整。(6分)

(1)妈妈一,就。

(2)忙着。

(3)春天,桃花盛开,远远望去像。

二、课文回放。(想想学过的课文填空,1—6题每条横线上写一个字。)(24分)

1、春节、、和都是我国的传统节日。

2、好雨知时节,当春乃发生。风,无。

3、月亮是个美丽的村子,河水着村子地流着,清清的河水

着小桥、绿树和青山。

4、感谢的.祖国,让我们地成长。我们像小鸟一样,等身上的羽毛长,就地向着高空飞翔,飞向我们的。

5、广场上,的小哥哥地踩着水,通红欢喜的脸上出

和骄傲。

6、谁言,得三春晖。

7、我从《》这个故事中,知道了凶恶的老虎被狡猾的狐狸骗了;读了《》我知道要正确对待自己的荣誉;《》这篇课文告诉我们每个人都有自己的长处和短处。

三、快乐阅读。(10分)

一天,小猴过生日,山洞里张灯结彩,非常热闹。邻居们送来了礼物,祝贺小猴的生日。

蚕姑娘送来了一块丝绸。小猴说:“谢谢!”

蜜蜂送来了一瓶蜂蜜。小猴说:“谢谢!”

老鼠送来了几只从别处偷来的大桃子。小猴说:“我最喜欢吃桃子,可是我不收你的礼物。”老鼠只好灰溜溜地走了。

1、“绸”字我们不认识,可以用部首查字法,应查部首,再查画。(2分)

2、这篇短文共有____小节,第一小节共有____句话。(2分)

3、____过生日,____、_____、____送来了礼物。(4分)

4、小猴不收老鼠的礼物,是因为。(2分)

四、写话乐园。(10分)

看看图上都有谁?他们在什么地方?他们会说些什么,做些什么?想一想,再写下来。

题目:钓(diào)鱼

初三英语教学质量调研试卷带答案

初三英语教学质量调研试卷

一、选择填空(共25小题;每小题1分,满分25分)

A)单项填空 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

1. You can try_______ second time if you fail_______ first time.

A the; the B. a; the C. the; a D. a; a

2. --- We‘ll visit the Summer Palace_______ there is a heavy rain tomorrow.

--- OK ! Boating on the lake must be interesting.

A unless B. since C. until D. if

3. -- I will buy you a new bike if you learn how to swim this summer.

-- Is that a _______? I‘m sure I‘ll get the bike.

A. chance B. trick C. promise D. treat

4. --- The dish looked bad, but it_______ OK.

--- So it‘s not right to judge a man by his appearance.

A tastes B. was tasting C. was tasted D. tasted

5. --- No one_______ be compared with Messi in playing football.

--- Oh, you are really his big fan.

A. might B. could C. must D. can

6. There are a small number of people involved, possibly_______ ten

A as few as B. as little as C. as many as D. as much as

7. Arthur‘s memory starts to go wrong because of his age. So does_______.

A. I B. mine C. me D. myself

8. --- What do you often do_______ classes to relax yourselves?

--- We often do eye exercises, listen to music or do some running around the school.

A. in B. among C. between D. during

9. --_______ will you stay here?

--- Until tomorrow afternoon.

A How long B. How soon C. When D. How often

10. --- Did you watch the snooker game yesterday?

-- Yes, I did. Xiao Guodong is really a dark horse. Nobody _______ him to go so far.

A supposed B. hoped C. expected D. wanted

11. _______ a book in the library, enter a key word into the computer.

A To finding B. Finding C. Find D. To find

12. --- I‘m tired. I‘m taking next week off.

---_______, honey. You do need a break.

A. Not so sure B. Forget it C. Great idea D. No way

13. With the development of science and technology, news can be_______ to every corner of the world in seconds.

A put out B. sent out C. run out D. taken out

14. --- She‘s never spoken to a foreigner, _______?

--- Yes. She is active and can speak English freely.

A is she B. has she C. isn‘t she D. hasn‘t she

15. --- How soon will you start your journey?

--- I‘m not sure. I haven‘t decided_______.

A. when shall I ask the boss for leave

B. where I will go to spend the holiday

C. if I would go by train or by plane

D. who should I travel with

B)完形填空 先通读下面的短文,掌握其大意,然后在每小题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

While I was waiting to enter university, I saw an advertisement in a newspaper –a teaching job wanted at a school. The school was about ten miles from where I lived. I was in great 16 of money and wanted to do something useful, so I 17 .

Three days later, a letter arrived. It asked me to meet the principal of the school at Croydon. It proved to be a(n) 18 journey -a train to Croydon station, a ten-minute bus ride and then a walk of 19 a quarter of a mile.

A man who was short and round seemed to be the principal and he opened the door for me. 'The school,' he said, 'has a group of twenty-four boys between seven and thirteen years old.' According to the man, I should have to teach all the subjects 20 art, which the man himself taught. I should have to 21 the class into three groups and teach them at three different levels, and I was not glad at the 22 of teaching Maths -a subject which I wasn‘t good at. It was 23 that I had to teach them on Saturday afternoon because most of my friends would be 24 themselves at that time.

Before I had time to ask about my 25 ,the man got up to his feet. 'Now,' he said,“You‘d better meet my wife. She is the one who really runs this school.”

16.A. fear B. need C. danger D. control

17.A. applied B. arranged C announced D. accepted

18.A comfortable B. boring C short D. unpleasant

19.A at first B. at most C at least D. at last

20.A. besides B. except C including D. about

21.A. cut B. divide C turn D. gather

22.A. action B. way C movement D. thought

23.A. worse B. better C harder D. nicer

24.A helping B. believing C enjoying D. losing

25.A. fund B. value C. award D. pay

二、阅读理解(共15小题;每小题2分,满分30分)

阅读下列短文,从每小题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。

A

Once upon a time, an old woman had two large water pots. Each hung on the end of a pole(杆子)which she carried across her neck.

One of the pots had a crack in it while the other pot was perfect, From the river to the house, the cracked pot arrived only half full. And the other pot was always full. The perfect pot took pride in its talent. But the poor cracked pot felt sad for its own disadvantage.

One day by the river the cracked pot said to the woman, 'I feel bad about myself, because the crack in me causes water to come out all the way back to your house.”

The old woman smiled and said, 'Why are there flowers on your side of the road, but not on the other pot‘s side? That‘s because I have always known about your crack. So I planted flowers on your side of the road, and every day while we walk back, you water them. For two years I have been able to pick these beautiful flowers to decorate my house, There would not be this beauty without you. Each of us has our own cracks. But the cracks make our lives so interesting and beautiful.'

So, to all the cracked pot friends, have a great day and remember to smell the flowers on your side of the road!

26. If each of the two pots could be filled with 20 kilos of water, the woman would probably get _______ kilos of water from the river to the house.

A 10 B. 20 C. 30 D. 40

27. Which of the following is TRUE according to the passage?

A The woman preferred the perfect pot to the cracked pot.

B. The cracked pot felt more talented than the perfect pot.

C. There were beautiful flowers on both sides of the road.

D. The old woman decorated her house with some flowers.

28. What can we learn from the story?

A Everyone has a talent.

B. A true friend is hard to find.

C. Success never comes easily.

D. Mistakes improve our learning,

B

Have you ever had an embarrassing(尴尬的)experience? Last week we asked readers to tell us about embarrassing experiences. We received thousands of letters! Here is a selection.

Tony:

My most embarrassing experience happened when I had just left university. I had just started teaching in a Liverpool secondary school. One morning my alarm clock didn‘t ring. I woke up at half past eight and school began at nine. I quickly washed, dressed, jumped into my car and rushed to school. When I arrived, the students had already gone into class. I didn‘t go to the office, but went straight into class. After two or three minutes the students began laughing, and I couldn‘t understand why! Suddenly I looked down and understood. I had put on one black shoe and one brown shoe!

Henry:

The most embarrassing experience I‘ve ever had, happened two years ago. After seeing a film, my wife and I had lunch in our favourite restaurant in town. Then we decided to take a walk along the street. The street was very busy and we started holding hands. Suddenly my wife saw a dress that she liked in a shop window, and stopped. I started looking at some watches in the next window. After a minute or two I reached for my wife‘s hand. There was a loud scream, and a woman slapped my face. I hadn‘t taken my wife‘s hand. I‘d taken the hand of a complete stranger!

James:

My wife and I had decided to buy a new house, and I‘d made an appointment to see our bank manager. I‘d never met him before. I went into town in my car and I was lucky enough to find a parking space outside the bank. I‘d just started reversing(倒车) into the space when another car made its way into it. I was irritated! I opened my window and shouted at the man in the car. He ignored me and walked away. It took me twenty minutes to find another place. As soon as I had parked the car, I rushed back to the bank. I was ten minutes late for my appointment. I went to the manager‘s office, knocked and walked in. The manager was sitting behind his desk. He was the man who had taken my parking space!

29. The students began laughing when they saw Tony_______.

A. wearing a wrong shoe B. carrying an alarm clock

C. looking down suddenly D. rushing into the classroom

30. Henry was embarrassed because he_______.

A slapped the woman in the face

B. took the hand of a complete stranger

C. heard his wife screaming in the street

D. knocked over some watches in the shop

31. James went into town to_______.

A. put money in the bank B. look for a job

C. meet the bank manager D. buy a new car

32. The underlined word 'irritated' probably means '_______ '.

A. angry B. impolite C. worried D. embarrassed

C

Roosegaarde, an artist and designer from Dutch has thought of a device(装置). He hopes it will make Beijing‘s sky clear again and help the people with masks breathe fresh air again in Beijing.

An electromagnetic field(电磁场) will pull the dirty particles in the air to the ground, and then they can be easily cleaned.

Roosegaarde says, 'It‘s like when you have a balloon which has static electricity(静电) and your hair goes toward it. Smog happens the same way as the hair.'

His workplace has reached an agreement with the Beijing government to test the technology in one of the capital‘s parks. Beijing‘s skies are regularly covered by grey smog. Serious cases of air pollution are often reported in Beijing. Roosegaarde says an indoor test has already shown it works well and he is confident of the results. With the help of a team of scientists and engineers, he is sure that the device can be worked outside.

'Beijing is a very good place to test the device because the smog in Beijing is quite low and there‘s not so much wind.' says Roosegaarde. 'We‘ll be able to make the air pure but the most difficult thing is to remove the smog. As a result, you can see the sun again.'

Roosegaarde also reminds us that his aim is not only to give a plan to solve Beijing‘s dirty air pollution but also to make people pay attention to the environment problem. He adds, 'This is not the real answer for smog. The real answer to do with it is clean cars, different industry and different lifestyles. ' However, he hopes the project will make the citizens realize the differences between clean air and smog-filled air.

33. The device works by_______.

A helping keep the particles out with more masks

B. pulling particles to the ground with an electromagnetic field

C. absorbing hair with a balloon with static

D. creating clean air and letting it out into the sky

34. What does Roosegaarde use his device for?

A To make smog. B. To make the air clean

C. To make static electricity. D. To make Beijing‘s parks beautiful.

35. After reading the passage, we can know_______.

A the device doesn‘t work well indoors

B. the people with masks can breathe fresher air

C. Beijing government agreed to test the device

D. clean cars aren‘t helpful to the environment in Beijing

36. Roosegaarde hopes people in Beijing can_______.

A pay attention to air pollution and solve the problem finally

B. invent more devices to clean the smog in Beijing

C. drive modern cars and try different lifestyles

D. realize how serious the pollution they‘re facing is

D

According to scientists‘ research, the month in which babies are born could affect them in some ways.

Babies born in spring get sick easily. Children born under Aquarius may be less clever than those born in other seasons. They may also have shorter lives than those born in autumn Scientists believe many of the differences can be explained by the mother‘s exposure to sunlight in pregnancy(怀孕). Sunlight helps lead to the production of Vitamin D in the body. The lack of this in the first months of life may have a bad effect on mental and physical health.

Vitamin D, called the 'sunshine vitamin', is known to help regulate(调节) thousands of genes during development, according to a study of more than two million people. So Vitamin D has a good effect on health This study showed that people born from April to June had slightly shorter lives than those born in October, November or December. Similar studies in the USA showed that people born in autumn lived about 160 days longer than those born in spring.

Professor Russell Foster, an Oxford University neuroscientist on seasonal biology, said the conclusions were surprising and interesting. He added, 'These are small effects but they are very, very clear. I am not giving voice to star signs and they are just for fun. But it is true that we are affected by our season of birth.'

37.A baby‘s season of birth doesn‘t affect its_______.

A health B height C length of life D. mind

38. According to the passage,_______ can help people get Vitamin D.

A. enough sleep B. enough sunlight

C fresh air D. suitable seasons

39. Which of the following is TRUE according to the passage?

A. People born in spring may not be in good health.

B. Children born under Aquarius are cleverer than those born under Libra.

C. Professor Russell Foster is interested in star signs and believes in them

D. People born in May will live longer than those born in October.

40. What does the passage mainly tell us?

A. People can know the length of life by star sign.

B. Women should choose to give birth to children in spring.

C A child‘s season of birth has some effect on him or her.

D. Vitamin D is very important to people‘s health.

第II卷(非选择题,共45分)

三、单词拼写(共10小题;每小题1分,满分10分)

根据下列句子所给汉语注释或对话情景,在答题卡标有题号的'横线上,写出空缺处各单词的正确形式。每空限填一词。

41. It‘s doubtful ▲ (是否)there‘ll be any seats left or not.

42. The notice at the end of the road ▲ (警告)people not to go any further.

43. Hopefully, those climbers have covered ▲ (五分之四)of the distance.

44. The ▲ (热)in the room makes me uncomfortable,

45. Without enough sleep you can‘t work ▲ (正常地).

46. There seems to be a huge balloon ▲ (漂浮)across the sky.

47. As the curtain ▲ (上升)slowly, the audience fell silent.

48.---Judy, I guess you are only twenty-five years old, is that true?

---Oh, it‘s a ▲ .

49.-Could you please ▲ us with some new information about MH370?

-Of course. Anyway, it is a sad story.

50.---It will be my turn. I feel a little ▲ .

---Take it easy. You can make it.

四、句子翻译(共5小题;每小题3分,满分15分)

将下列句子译成英语,并将所译句子写在答题卡标有题号的横线上。

51.骑自行车环绕苏州是多么有乐趣啊!

52.他离开得如此匆忙,以至于忘了锁门。

53.别担心,你不久就会习惯他的幽默感。

54.你注意到我们教室的墙被涂成了白色吗?

55.用英语回答这个问题你有困难吗?

五、书面表达(共1题;满分20分)

一个民族有自己的“民族梦”,一个国家有自己的“国家梦”,同样,每个人也应有属于自己的“美丽梦想”。最近,你班就“我们的梦想职业”展开了一次调查。下表是你们小组的调查情况。请根据表格内容写一篇英语短文,向英语校刊投稿。

注意:1. 100词左右。短文的开头和结尾已给出,不计入总词数;

2.不得透露学校、姓名等任何个人信息;

3.可在必要处作适当发挥。

Our Dream Jobs

Recently we did a survey in our class in order to learn about students‘ ideal jobs. Here‘s a report about my group members‘ ideas.

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初三英语教学质量调研试卷参考答案

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