2005年苏州中学国际班提前招生化学试卷
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05新课标江苏四星级高中招生化学试题(共50分)可能用到的相对原子质量:C-12 H-1 O-16 Ca-40 Cl-35.5Cu-64 Na-23 K-39 Ba-137 S-32 N-14 一、选择题(以下每小题只有一个....选项符合题意,请把正确答案填写在下面的表格中。
本题包括8小题,每题2分,共16分)1. 下列变化:①粮食酿成酒②爆炸③用活性炭除去有毒气体④植物的光合作用⑤自行车骑一段时间后,车圈生锈了⑥洗完的衣服在阳光下晾晒,很快会干。
其中一定属于化学变化的是A.①②③B.①④⑤C.②③⑤D.③④⑤2. 下列排放到空气中的物质不会污染大气的是A.摩托车、汽车排放的尾气B.废弃塑料焚烧产生的气体C.氢气燃烧后的产物D.海洋和陆地生物腐烂过程中产生的CO 3.下图是气体分子的示意图,图中“ ”和“ ”分别表示质子数不同的原子,其中能表示化合物的是A4. 2004年9月,美国天文学家透露在银河系中心附近发现一片冰冻的“糖云”,这个发现增加了早期生物物种起源于星际空间的可能性。
这片“糖云”包含着一种单糖分子——代谢成乙二醇醛,化学式为C2H4O2,这种结构的分子可以经过反应,生成一种核糖分子是DNA的主要成分。
下列说法错误的是A.代谢成乙二醇醛的相对分子质量为60B.代谢成乙二醇醛中碳元素与氧元素的质量比为3︰4C.代谢成乙二醇醛中碳元素与氢元素的质量比为1︰2D.1个代谢成乙二醇醛分子中含有4个氢原子、2个氧原子和2个碳原子5. 正常人胃液的pH在0.3~1.2之间,酸(一般以盐酸表示)多了,需要治疗。
某些用以治疗胃酸过多的药物中含MgCO3、NaHCO3,还可用酒石酸钠来治疗的。
这主要是由于A.碳酸、酒石酸都不是强酸B.对人体而言酒石酸是营养品C.Na+、Mg2+都是人体必需的元素D.会与胃酸作用生成CO2,在服药后有舒服感6.下列说法正确的是A.物质的溶解度都随温度的升高而增大B.任何物质的饱和溶液都比它的不饱和溶液浓C.某温度下的KNO3不饱和溶液可能是浓溶液D.某温度下,在KNO3的饱和溶液中加入食盐,若温度不变,则食盐不溶解7. 多数食品容易吸收空气中的水分变潮湿,并与空气中的氧气反应而腐败。
2005年苏州市七校联考化学试卷可能用到的相对原子质量:H—1 C—12 N—14 F—19 O—16 Na—23Al—27 S—32 C1—35.5 Mn—55 Fe—56Zn—65 Cu—64 Ca—40 Ag—108 Ba—137第Ⅰ卷(共74分)一、选择题(本题包括8小题,每小题4分,共32分。
每小题只有一个....选项符合题意):1、据报道,用10B合成的10B20有非常好的抗癌治癌作用下列叙述正确的是()A、10B和10B20互为同位素B、10B和10B20互为同分异构体C、10B的中子数和核外电子数相等D、10B20晶体熔点高、硬度大2、对于非典型肺炎病人住过的房间,可用15%的过氧乙酸(CH3COOOH)溶液按7mL/m2熏蒸2h进行消毒。
下列有关过氧乙酸的叙述错误..的是()A、常温下,向其浓水溶液中滴入紫色石蕊试液,振荡后一定呈红色B、与羟基乙酸(HOCH2COOH)互为同分异构体C、用于环境消毒时,不能与苯酚混和使用D、过氧乙酸水溶液呈酸性,是电解质3、有人建议将氢元素排在元素周期表的ⅦA。
下列事实能支持这一观点的是( )①氢原子得到一个电子实现最外层稳定结构②氢分子的结构式为H—H③与碱金属元素形成离子化合物MH④单质分子中原子间的化学键属于非极性键A 、只有①②③B、只有①③④C、只有②③④D、全部4、设N A为阿佛加德罗常数,下列说法正确的是()A、6.2克白磷分子中含P—P键为0.05N AB、1molCH3+中含电子数为8 N AC、标准状况下22.4LSO3中含原子数为4 N AD、常温常压下11.2LCO2气体通过足量的Na2O2充分反应,转移电子数为2N A5、钠盐和钾盐性质相似,但在实际生产中多用钾盐而不用钠盐。
如在实验室制氧气是用KClO3而不是用NaClO3,制黑火药用KNO3而不用NaNO3,并且在KNO3中不能含有NaNO3,对此现象,以下各种理由合理的是()A、钠盐比钾盐更容易得到B、钾盐的氧化性比钠盐弱C、钾盐的熔点比钠盐高D、钠盐的吸湿性比钾盐强6、可逆反应3A(g)3B+C, △H>0,随着温度的升高,气体的平均相对分子质量有变小的趋势。
江苏省苏州中学2005年国际班、科大少年预备班招生考试化学试卷总分40分可能用到的相对原子质量:H1 C12 N14 016 Na23 K39 Ca40 Fe56 Bal37一、选择题(本题包括5小题,每小题2分,共10分。
每小题只有1个选项符合题意。
) 1.用★代表碳原子,用☆代表氧原子,则化学反应方程式2C+O2==2CO表示最合理的是A.★★+☆☆==★★☆☆ B.★★+☆☆==★☆★☆C.★+★+☆☆==★☆+★☆ D.★|+★+☆+☆==★☆+★☆2.已知硝酸是一种强氧化性酸,能把SO32-氧化成为S042-,则下列实验方案能够确定某未知试液中存在S042-的是A.取少量试液,滴加BaCl2溶液,生成白色沉淀,再加入足量稀盐酸,沉淀不溶解B.取少量试液,加入足量稀硫酸,没有明显现象,再滴加BaCl2溶液,生成白色沉淀 C.取少量试液,加入足量稀盐酸,没有明显现象,再滴加BaCl2溶液,生成白色沉淀 D.取少量试液,加入足量稀硝酸,没有明显现象,再滴加Ba(N03)2溶液,生成白色淀3.某K2C03样品中含有Na2C03、KN03和Ba(N03)2三种杂质中的一种或二种。
现将13.8克样品加入足量水,样品全部溶解,再加入过量的CaCl2溶液,得到9克沉淀。
对样品所含杂质的正确判断是A.肯定有Na2C03 B.肯定有KN03,可能还含有Na2C03C.肯定没有Ba(N03)2,可能有KN03 D.肯定没有Na2C03和Ba(NO3)24.已知固体和液体的接触面积越大,反应的速率越快。
现将a g块状碳酸钙跟足量盐酸反应,反应物损失的质量(不考虑盐酸的挥发)随时间的变化曲线如下图的实线所示,在相同的条件下,将b g(a>b)粉末状碳酸钙与足量同浓度盐酸反应,则相应的曲线(图中虚线所示)正确的是5.已知一个SO 2分子质量为n kg,一个SO 3,分子质量为m kg ,若以硫原子质量的132作为原子质量的标准,则SO 2的式量为A .32n m n -B .3232n m n -C .3232m n m -D .3232n m n- 二、填空题(本题包括4小题,共22分)6.(4分)为了降低城乡居民因食物和饮用水中含碘量不足而导致碘缺乏症的发病率,我国已执行食盐加碘的法规,制定了“碘盐”的国家标准。
2005年苏州市初中毕业暨升学考试试卷化学参考答案及其评分标准一、选择题(本题包括15小题,每小题2分,共30分)1.D2.D3.A4.B5.B6.B7.C8.C9.D 10.D 11.A 12.A 13.C 14.B 15.C二、(本题包括4小题,共22分)16.(4分)(1)Hg (2)2H 2CO 3(3)3OH ―(4)(NH 4)2SO 417.(4分)第一组:H 2、Al 、P 分类依据:单质第二组:CO 、CO 2、MgO 分类依据:化合物(或氧化物)18.(8分) (1)2H 2O 2 = 2H 2O + O 2↑ (2)Na 2CO 3 + Ca(OH) 2 = CaCO 3↓+ 2NaOH(3)SO 3 + H 2O = H 2SO 4 (4)3CO + Fe 2O 3 = 2Fe + 3CO 219.(6分)(1)酒精灯 试管(2)过滤,蒸发皿、玻璃棒(3)198.2, A 、D 、G 、F 、H三、(本题包括3小题,共12分)20.(5分)(1)紫色粉末 (2)+6 (3)防潮避热 (4)3 O 221.(4分)(1)2 水 120:15:8(或240:30:16) (2)油脂22.(3分)电 化学 化学能直接转化为电能四、(本题包括4小题,共17分)23.(4分)(1)降低凝固点 (2)洗洁精起乳化作用(3)可燃物与燃烧区隔离 (4)盐溶液易使铁生锈24.(4分)离子 H 2O 、Na +、Cl ― 溶液中各离子所带的正、负电荷总数相等25.(5分) (1)B. H 2 D. FeSO 4 (或FeCl 2) F. Cu (2)3Fe + 2O 2 = Fe 3O 426.(4分)解:设需要氢氧化钙质量为x 。
SO 2 + Ca(OH)2 = CaSO 3 + H 2O64 745×53.3kg xMnO 2 高温 点燃64:74 =5×53.3kg: xx≈308kg答:需要氢氧化钙308kg。
苏州苏州国际外语学校中考化学试题含答案一、选择题1.下列四个图像反映了对应实验过程中相关量的变化,其中错误的是A.部分变质的NaOH溶液中滴加稀盐酸B.HCl气体的溶解度受温度影响的变化曲线C.等质量的Mg粉和Fe粉A.A B.B C.C D.D2.如图是A、B、C三种固体物质的溶解度曲线,下列分析正确的是()A.20℃时等质量的A和C两种物质的溶液中溶质的质量相等B.50℃时把50gA放入100g水中能得到A的饱和溶液,其溶质质量分数为50%C.将50℃时A、B、C三种物质的饱和溶液都降温至20℃时,这三种溶液的溶质质量分数的大小关系是B>A=CD.将C的饱和溶液变为不饱和溶液,可采用降温的方法3.在硝酸银、硝酸铜的混合溶液中加入一定量锌粉,反应停止后过滤,滤液仍为蓝色,有关判断正确的是()A.滤渣中一定有银、没有铜和锌B.滤渣中一定有银和锌,可能有铜C.滤液中一定有硝酸锌、硝酸铜、硝酸银D.滤液中一定有硝酸锌、硝酸铜,可能有硝酸银4.下表除去杂质的方法中,正确的是选项物质(括号内为杂质)除去杂质的方法A.A B.B C.C D.D5.下列实验方法不能达到实验目的的是A.A B.B C.C D.D6.有一包白色固体混合物,其中可能含有氯化钠、碳酸钠、氯化钙、硫酸钾和硝酸钡中的一种或几种,现进行以下实验:(微溶物视作全部溶解)(1)将固体混合物放入足量的水中,得到无色透明溶液A和沉淀B,将沉淀B洗涤,烘干后称得质量为15g;(2)在溶液A中加入硝酸银溶液,有白色沉淀生成,再加入足量的稀硝酸沉淀不溶解;(3)在沉淀B中加入足量的稀盐酸,沉淀全部消失,同时产生大量气泡,把生成的气体全部通入足量的澄清石灰水中,充分反应后过滤出沉淀,经洗涤、烘干后称量得到10g固体。
根据以上实验及现象判断下列组合正确的是:()A.原固体混合物中一定没有氯化钙B.原固体混合物中碳酸钠的质量一定为5.3gC.原固体混合物中一定有碳酸钠、氯化钙和硝酸钡,一定没有硫酸钾,可能有氯化钠D.原固体混合物中一定有碳酸钠、硝酸钡和氯化钠,可能有氯化钙,没有硫酸钾7.下列4个坐标图分别表示4个实验过程中的某些变化,其中正确的是A.向含有稀硫酸的硫酸铜溶液中加氢氧化钠溶液B.向一定量的稀盐酸中加入铁粉C.稀释pH =2的稀硫酸D.氢氧化钠溶液中滴加盐酸8.下列图像不能正确反映对应变化关系的是A.向等质量的氧化钙、氢氧化钙中分别加入等质量分数的稀盐酸至过量B.向一定质量氯化亚铁和氯化铝的混合溶液中加入镁粉至过量C.向盐酸和氯化钙的混合溶液中逐滴加入纯碱溶液至过量D.向等质量的镁、铝中分别加入等质量分数的稀硫酸至过童9.如图以稀硫酸为例的反应关系体现了酸的化学性质。
2005年苏州市初中毕业暨升学考试化学试卷分析苏州市教育科学研究院毛明【综合评析】这份试卷是命题组依据苏州市第一次使用九年义务制《化学课程标准》和学生使用沪教版教材所编制的试卷。
试卷在理念上试图体现课程标准,试图将科学素养和人文精神有机结合。
试卷减少了客观题量,从去年的18小题选择题,改为15小题;虽然增加了主观题量,但总题量仍然与去年相同为30小题,让学生有充分的时间阅读试卷,思考试题和认真解答。
本卷实验题的分值从去年的约25分增加到约30分,而计算题仅占约10分。
本卷多数题目以社会热点、实验事实、科技发展和学生生活体验为背景,努力杜绝‚繁、难、偏、怪‛的倾向;如第1、2、4、5、6、7、8、9、10、11、13、14、19、20、21、22、23、26、27、28、29和30题等;试题在开放性和探究性方面也作了一些探索,如第17、23、29和30题,给考生表达独立见解的机会。
试卷仍然注意到考核学科主干知识、实验操作规范和术语符号表达规范和基本化学计算等‚传统类型‛的试题,并且布局分散,如第3、5、12、15、16、17、18、19、24、25、26、2 7和28题等。
第Ⅰ卷(选择题,共30分)(0.807)一、选择题(本题包括15小题,每小题2分,共30分。
每小题只有一个....选项符合题意。
)1. 下列关于化学的看法错误..的是(0.961)A. 化学可以为人类研制新材料B. 化学正在环境保护中发挥重要作用C.化学可以为人类提供新能源D.化学的发展必然导致生态环境恶化【点评】本小题用意是考核学生对待化学的认识,体现学科的价值观。
2. 元素在自然界里分布并不均匀,如智利富藏铜矿、澳大利亚多铁矿、山东的黄金储量居我国首位,但从整个地壳含量的多少分析,最丰富的金属元素是(0.822)A. FeB. SiC. OD. Al【点评】元素分布与含量的考查,隐含价值观与简单学科辩识能力反馈。
3. 物质都是由微粒构成的,下列物质由分子构成的是(0.841)A. 干冰B. 碳酸钠C. 金刚石D. 铜【点评】4个选项课本中都能找出图片或相关练习,其中碳酸钠教材要求做其水溶液的导电性实验。
江苏省苏州中学2005年高中国际班、科少班招生试题语文试卷考试时间:90分钟试卷分值:120分一、基础部分(26分)1、根据拼音写汉字或给加点字注音。
(8分)①寒_______(xuān) ②________(líng)听③________(chóu)帐④搭_______(dàng)2、写出下列各句的上句或下句。
(10分)①,仁者乐山。
(《论语》)②,失道者寡助。
(《孟子·公孙丑下》)③千里之行,,(《老子·第六十四章》)④凡事预则立。
(《礼记·中庸》)⑤露从今夜白,。
(杜甫《月夜忆舍弟》)⑥,背灼炎天光。
(自居易《观刈麦》)⑦大江东去,浪淘尽,______________________。
(苏轼《念奴娇中赤壁怀古》)⑧莲之出淤泥而不染,__________________________。
(周敦颐《爱莲说》)⑨是非成败转头空,_______________________,几度夕阳红。
(杨慎《临江仙》)⑩宜将剩勇追穷寇,___________________________。
(毛泽东《人民解放军占领南京》)3、 (6分)①“红娘”是__________________中的人物。
(填写一作品名)②下面这首词描写的是《水浒传》中的_________________。
(填写一人物名)自幼曾攻经史,长成亦有权谋,恰如猛虎卧荒丘,潜伏爪牙忍受。
不幸刺文双颊,那堪配在江州每他年若得报冤仇,血染浔阳江口。
③唐僧和他的三个徒弟均是由观音菩萨往东土寻找劝化的,按劝化的顺序应该是 ( )A. 唐僧、孙悟空、猪八戒、沙僧B. 孙悟空、猪八戒、沙僧、唐僧C. 沙僧、猪八戒、孙悟空、唐僧D. 唐僧、沙僧、孙悟空、猪八戒4、今年的5月8日是“母亲节”,有班级举办征集“献给母亲的一句话”活动,请仿照下面的句子写法,为母亲献上一句话。
(3分)例句:母亲是月台,儿子是那挂在长长的列车。
江苏省苏州中学2005年国际班、科大少年预备班招生考试数学试卷(考试时间90分钟,满分120分)一、填充题(每小题6分,共72分)1、计算112(31)(31)(31)n n n -+----=____________________2、已知关于x 的不等式11x x m -++<有解,则m 的取值范围是_________________3、已知0,0c a b c <<<<=则a b c 、、由小到大的顺序排列____4、,另两边分别为2和那么这两边的夹角为______5、梯形的上、下底长分别为1和4,两对角线长分别为3和4,那么梯形的面积为_______6、如图,已知矩形ABCD ,OA 与x 轴正半轴夹角为60︒,点A 的横坐标为2,点C的横坐标为B 的坐标为____________________ 7、反比例函数图象上有一点C 的坐标为(-3,3),一次函数9y x =-的图象与这个反比例函数图象相交于A ,B 两点,那么ABC 的面积为____________8、如图,在半径为R 的圆中作一内接ABC ,使BC 边上的高AD h =(定直),这样的三角形可作出无数个,但AB AC 为定植,其值为__________________9、已知三角形的三边依次为2212,1n n n -+,,当n 取2至10这9个自然数时,得到9个不同的三角形,其中具有最小内角的三角形的三边长依次为____________________10、若22(1)(1)1,1x y x y xy +-=-=-,则2233()()x y x y +-=__________________11、若不等式201x ax a ≤-+≤有唯一解,那么a 的值为__________________12、如图,ABC 的内切圆的圆心是M (-1,1),B(1-0),C (1+0)则ABC 的面积S 的值是_______________________ 二、解答题(本大题共4小题,共48分)13、一个等腰三角形的一边长为4,另两边长是关于x 的方程22120x mx m ++-=的两根,求此三角形的周长。
2005年江苏省苏州中学国际班、科少班招生考试英语试题江苏省苏州中学2005年高中国际班、科少班招生考试英语试卷本试卷分第一卷和第二卷两部分。
考试时间60分钟,满分120分。
第一卷(共四大题,85分)一、词语释义:从四个选项中选出一个意思与划线部分相同或相近的答案。
(共5题,每小题1分,满分5分)1. Doctors have found that hobbies are valuable in helping patients recover from physical or mental(精神) illness.A. get backB. become healthy againC. become calmD. supply with a new cover2. When George came back home, he found his father had just passed away.A. left homeB. gone outC. diedD. passed by3. No matter what other people say, you should stick to your plan.A. bring outB. carry on withC. draw upD. write out4. We didn't plan our art exhibition like that but it worked out very well.A. tried outB. went onC, carried on D. ended5. The lights go on at dusk.A. when it is getting darkB. when it is very darkC. late at nightD. the whole evening二、单项选择:从A B C D四个选项中,选出可以填入空白处的最佳答案。
2005-2006 年上学期江苏省苏州中学阶段考试卷( 无附参照答案 )一.单项选择:( 30%)1.Our house is on the top of the hill, and in winter the winds ______ be pretty cold.A. mustB. ought toC. canD. need2.The word“media” basically refers to __ we commonly call newspapers, m agazines or radio and television.A. whichB. whatC. whyD. how3. I like __________ in the autumn when the weather is clear and bright.A. thisB. thatC. oneD. it4.A beam of light will not bend round corners unless _____ to do so with the help of a reflecting device.A. madeB. being madeC. making itD. to make it5.Tom stood ____ for a moment when an old soldier suddenly appeared before him.A. surprisedB. being surprisedC. surprisingD. to be surprised6.His main purpose was to get the program ___________.A. moveB. to moveC. movingD. moved7.Seconds_____ in an emergency, and knowing what to do can mean the difference between life and death.A. ensureB. countC. accessD. affect8.Seen from the moon, our earth, with water _____70% of its surface, _____as a‘ blue ball.’A.covers,appearsB.covering,appearingC.to cover, appearingD.covering,appears9. Taking a holiday is certainly good for dad, but it remains _____ whether he will enjoy it.A.to seeB. to be seenC.seeingD.seen10.There is very little ______ in arguing with Jack. It won’ t help at all.A.pointB.meaningC. senseD.view11.---If you tell your class teacher what you have done ,he will be _____a little angry.---Yeah, I know. He will talk to my parentsA.nothing butB.up toC.much moreD.more than12.I send you 100 dollars today, the rest ____ in a year.A.followsB. followedC.to followD.being followed13.You can never imagine what great trouble I have had ____what he wanted.A. to doB.doingC.doneD.to be doing14.Only when _____its value.A.losing freedom one knowsB.one loses freedom he knowsC.one loses freedom does knowD.one loses freedom does one know15.The teacher hurried to the concert hall only____the speaker ____.A. to find,leftB. finding, leavingC. finding,leftD. to find,gone二.完形填空:( 20%)Susan Cleveland is the young president of a candy company in the city of Chicago. Her father began thecompany in the 1960’s. He died three years ago. Now, the company belongs to Susan.Susan, 16 , did not have any jobs before becoming head of the company. She just finished the college.The employees became 17concerned during Susan’s first months18 the job. Mr Cleveland had beena 19 leader. But Susan permitted 20 employees to make their own 21 .One empl oyee said,“Old Mr Cleveland 22 told us what to do. He kept people on a short leash. 23the company did well.” What does a“short leash ” mean? A leash is a kind of rope. We use a leash 24 our pet dogs. The leash keeps thedog from 25 away 26 getting into trouble.Keeping a person on a short leash means keeping him or her 27close control. The person can’t make many decisions for himself of herself. Ms Cleveland does not keep her workers on a short leash. 28 , sheencourages them to get 29ways to do business. For example, her secretary proposed an idea. She said thecompany should 30 a sum of money as a prize to the best student in the high school31the factory. Thewinner could use the prize money to study at a university. Ms Cleveland 32 the idea. After the prizewas announced, 33who lived in the area of the factory began to buy34of the company’s candy. Local newspapers wrote about the competition. Business 35 .Ms Cleveland made her secretary the company’s first Director of Public Relations.The former secretary was very pleased.16. A. but B. yet C. so D.however17. A. so little B. even less C. even more D.no more18. A. on B. in C. for D.at19. A. weak B. strong C. kind D.clever20. A. no B. a few C. few D.many21. A. products B. candy C. decisions D.plans22. A. never B. always C. seldom D.did23. A. Although B. Because C. Otherwise D.But24. A. to walk B. to use C. to frighten D.to play25. A. stepping B. pulling C. running D.jumping26. A. in B. for C. when D.or27. A. in B. on C. for D.under28. A. Still B. Yet C. Instead D.While29. A. other B. more C. many D.better30. A. save B. offer C. get D.lend31. A. belonging B. on C. near D.in32. A. studied B. appreciated C. refused D.changed33. A. students B. workers C. businessmen D.people34. A. some B. little C. more D.less35. A. improved B. failed C. continued D.stopped三.阅读理解:( 24%)AA wind is a current of air moving over the land or sea. The direction of a wind is the direction inwhich it has come, and not the direction in which it is going. For example, a south wind is blowing fromthe south towards the north. A wind vane(风向标 ) points in the direction of a wind. The strength of a windcan vary from a light breeze to a hurricane. The Beaufort Scale(蒲福风级 ) is the system that weathermenuse to describe the strength and speed of a wind. Winds are produced because the pressure of the air isdifferent in different places.Air flows from a region of high pressure to a region of low pressure, causing a wind. The heat of the sun on the earth produces pressure differences and wind.In the tropics(热带地域 )the heat makes the air expand( 膨胀 ).As it expands, it gets lighter and rises. Cooler air from surrounding regions moves in to take the place of the rising air. This change causes windsto blow towards the tropics. These winds are called the trade winds.36.What is the most fundamental(根本的 ) factor causing a wind?A.The heat of the sun.B.A current of air moving.C.The cooler air.D.The direction in which the air has come.37.The direction of a wind is the direction _____.A .in which it is going B. in which it has comeC. from which the heat has comeD. in which the heat is going38.The heat of the sun on the earth _____.A. produces pressure differencesB. produces windC. make the air differentD. both A and B39. This passage mainly tells us _____.A. the formation of a windB. the heat of the sunC. the cooler airD. the place of the rising airBThe British government recently launched a world-wide campaign to boost (扩大) the number of overseas students in Britain, with the aim of attracting an additional 75,000 students by 2005.21st Century recently conducted an interview with Martin Davidson, director of the British Council ofChina, in which he explained the campaign and how this news influences Chinese students.“The reason for Britain to initiate the campaign is to develop a long -term relationship with the future leaders of the world.” Said Davidson.According to a speech delivered at the London School of Economics, Prime Minister Tony Blair praisedthe quality of British universities.“The world class reputation means that they are among the most popular for international students.I am determined to build on this great strength with a long-term strategy to attract many more. Theinstitutions, their students and our economy will reap considerable benefits.” he said.A package of changes to help international students applying to study in the UK was announced by Tony Blair.It includes:-------making it easier for students to process their visa applications.-------reducing the need for international students to reapply for a visa after temporarily (临时) leaving the UK.-------making it easier for students to combine study with work on campus and during vacation.-------putting better information in the hands of potential students, on-screen and through personal advice.The objective is to increase Britain share in the international tuition-paying market outside theEuropean Union to 25 per cent relative to other English-speaking countries.40.The passage mainly tells us ___________.A.Prime Minister Tony Blair praised the quality of British university universities.B.International students are not welcome in UK. begins international education drive.D.Britain wants to develop a long-term relationship with the future leaders of the world.41.The underlined word “objective ” can best be replaced by ____________.A. outlookB. aimC. campaignD. application42.According to the passage we can learn _______________.A. that only talented international students are welcome in the UKB. that it will be impossible for the overseas students in the UK to work on campusC. that it will be easier for international students to get their visasD. that it is unnecessary for overseas students to reapply for a visa after temporarily leaving the UK43.Where do you think this passage is taken from?A. A popular magazine in BritainB. A travel agency in ChinaC. The introduction to Britain universitiesD. The news agencyCCollections were the inspiration for a project at Thomas Tallis School, which formed part of the Imagine Children’ s Literature Festival last autumn. Each child( aged 12-13)beautified a box and wrote a story onthe subject of collections to throw inside it. The boxes were spread within the Royal Festival Hall ’ s Ballroom. Some were left empty to encourage visitors to write their own stories.The subject chosen by Lauren was an imaginative one.‘‘ It’s a sort of Cinderella (灰姑娘)story ,’’ she told me, inspired by a collection of letters from her cousin. In the story these become love letters, burned bya cruel stepmother. Lauren’s best friend Charlotte is the stepmother.“I’m in Charlotte’s story too.” says Lauren,“ I get run over.” Charlotte’ s tale was inspired by the girls’ coin collection.“ We have collected foreign coins for years-----since our families went on holiday to Tenerife,” she explains.“That was before the Euro, so we put pesetas in.” Lauren continues:“ I find a coin in the road, go to get it and get run over. I’min hospital and then I die.” Charlotte adds:“ Or she might not die. I haven’t decided yet. ”Millie Murray, who is a teen-novel author, thinks that setting the subject of collections was a usefulinspiration to their creativity rather than a restriction(限制).“ In the beginning I thought,‘ Will the children be able to do it?’” she says.“ But it’ s been fruitful. Some have their own collection,some have parents who do, and some have written complete stories. It’ s made them think about something they wouldn ’ t have otherwise, which can only be a good thing.”44.What were the children asked to do in the project?A.To meet friends at Thomas Tallis School.B.To write stories on the subject of collection.C.To encourage visitors to write their own stories.D.To have their friends for characters in the stories.45.The underlined word“pesetas ” in Paragraph 2 is a kind of _____ .A. storyB.collectionC. inspirationD. foreign coin46. From the stories by Lauren and Charlotte, we know that_____.A.Charlotte hurt herself when getting a coinB.Both of them developed their imaginationC..Both of them will die in each other’ s storiesuren ’ s cousin posted her some love letterslie Murray thinks _____.A.collections could inspire writing creativityB.it was good for parents to have collectionsC.inspirations were very useful in writing storiesD.setting collection subjects restricted inspirations四.单词填空(16%)48. The _______________ (态度 ) of Germany and France were surprising.49. There turned out to be no _______________(靠谱的 ) evidence of John’s guilt.50.His ______________(剖析) of the political situation were always convincing (使服气 ).51.Our friends often _______________(议论) on how different the two boys are.52.They are _______________( 进行示威游行 ) against the price increases.53.The new _____________(界限限 )of the country were fixed after the war.54.The movie __________( 体现 )its characters in a way that I find it difficult to believe in.55.Rude behavior should not be t_______________.56.Three more paper factories were built d______________ widespread opposition.57. Don’t c______________ yourself with other people’s affairs.58.One’ s mind works quickly at the c________ moment.59.I told him to meet me here an hour ago,but perhaps he m____ and thought I meant a different restaurant.60.He u___________to improve the working arrangements.61.They sat at the table, d___________whether to go to the hills or to the seaside.62She s___________ the newspaper for any news of them.63.They are p___________heavy rain for tomorrow.五.短文改错(10%)One day, I was cooking in the kitchen as the64.telephone rings. I went to answer it immediately.65.She was my close friend, Lisa. When we were talking66.on a phone, the fire alarm sounded. I ran back to the67.kitchen. The room full of smoke and beef was badly68.burnt. I quickly turned off the gas, opening all the69.windows, and then went out of the house. In my70.surprise, two fire engines were outside my house. I71.was rather worried. I told about the firemen that it72.was my careless cooking which caused the heavy smoke.73.。
江苏省苏州中学2005年国际班、科大少年预备班招生考试
化学试卷
可能用到的相对原子质量:H1 C12 N14 O16 Na23 K39 Ca40 Fe56 Ba l37 一、选择题(本题包括5小题,每小题2分,共10分。
每小题只有1个选项符合题意。
) 1.用★代表碳原子,用☆代表氧原子,则化学反应方程式2C+O2==2CO表示最合理的是A.★★+☆☆==★★☆☆B.★★+☆☆==★☆★☆
C.★+★+☆☆==★☆+★☆D.★+★+☆+☆==★☆+★☆
2.已知硝酸是一种强氧化性酸,能把SO32-氧化成为SO42-,则下列实验方案能够确定某未知试液中存在SO42-的是
A.取少量试液,滴加BaCl2溶液,生成白色沉淀,再加入足量稀盐酸,沉淀不溶解B.取少量试液,加入足量稀硫酸,没有明显现象,再滴加BaCl2溶液,生成白色沉淀C.取少量试液,加入足量稀盐酸,没有明显现象,再滴加BaCl2溶液,生成白色沉淀D.取少量试液,加入足量稀硝酸,没有明显现象,再滴加Ba(NO3)2溶液,生成白色淀3.某K2CO3样品中含有Na2CO3、KNO3和Ba(NO3)2三种杂质中的一种或二种。
现将13.8克样品加入足量水,样品全部溶解,再加入过量的CaCl2溶液,得到9克沉淀。
对样品所含杂质的正确判断是
A.肯定有Na2CO3B.肯定有KNO3,可能还含有Na2CO3 C.肯定没有Ba(NO3)2,可能有KNO3D.肯定没有Na2CO3和Ba(NO3)2
4.已知固体和液体的接触面积越大,反应的速率越快。
现将a g块状碳酸钙跟足量盐酸反应,反应物损失的质量(不考虑盐酸的挥发)随时间的变化曲线如下图的实线所示,在相同的条件下,将b g(a>b)粉末状碳酸钙与足量同浓度盐酸反应,则相应的曲线(图中虚线所示)正确的是
5.已知一个SO2分子质量为n kg,一个SO3,分子质量为m kg,若以硫原子质量的1 32
作
为原子质量的标准,则SO2的式量为
A.
32n
m n
-
B.
32
32
n
m n
-
C.
32
32
m
n m
-
D.
32
32
n
m n
-
二、填空题(本题包括4小题,共22分)
6.(4分)为了降低城乡居民因食物和饮用水中含碘量不足而导致碘缺乏症的发病率,我国已执行食盐加碘的法规,制定了“碘盐”的国家标准。
市售二级碘盐的商品包装上标明“配料:食盐、碘酸钾;氯化钠含量:94%;含碘量:30mg/kg”。
(1)碘酸钾是碘元素(符号I )呈+5价的含氧酸的钾盐(不含结晶水),其化学式
是;
(2)每千克市售的二级碘盐中,含有30mg的;
(3)制造碘盐并不直接使用碘(单质)而是使用碘酸钾,主要原因可能是(选填下列列举原
因的序号) 。
(a)碘酸钾的价格较低,有利于减轻居民食用碘盐的经济负担
(b)碘酸钾较易溶于水,有利于碘盐生产操作,食用时无异味,易吸收
(c)碘酸钾热稳定性优于碘,有利于碘盐的生产贮放、使用过程中减少碘的损失7.(4分)某中学环境监测兴趣小组的同学在一条鱼虾绝迹的小河边发现四个工厂,如下图
所示。
这些厂往小河里排放的废水中各含一种
..化合物,经监测发现:
①甲处河水呈浅黄色;②乙处河水呈红褐色浑浊状;③丙
处河水逐渐变澄清;④丁处河水不断冒气泡;⑤M处水样的pH
值大于7,加入足量的稀硝酸后再加入BaCl2溶液,无沉淀生成;
⑥N处水样的pH值小于7。
请回答四个工厂所排放的废水中,
分别含有下列化合物中的哪些物质(用化学式
...表示)?
硫酸铁、氢氧化钠、硝酸银、碳酸钠、氯化铁、稀硫酸
甲、乙、丙、丁
8.(6分)Ag3PO4、Ag2HPO4均为黄色沉淀。
某同学向Na3PO4溶液中逐滴滴加硝酸银溶液
至恰好完全反应
......,生成黄色沉淀,
(1)若黄色沉淀是Ag 3PO 4,写出反应的化学方程式
(2)若黄色沉淀是Ag 2HPO 4,写出反应的化学方程式
(3)试设计一个简单的实验方案,来证明所生成的黄色沉淀是Ag 3PO 4还是Ag 2HPO 4:
9.(8分)氨气是一种有强烈刺激性气味的气体,不宜直接排放到大气中。
实验室用氨气
还原氧化铜的方法测定铜的相对原子质量。
已知:
()()4232232232444
222223332NH CL Ca OH L NH H O
NH CuO N Cu H O NH H SO NH SO ++↑+++++==
试回答:
(1)如果选用测定反应物CuO 和生成物H 2O 的质量[m(CuO),m(H 2O)],请用下列仪器
设计一个简单的实验方案。
①仪器连接的顺序(用字母编号表示,仪器可重复使用) ; ②列出计算Cu 的相对原子质量的表达式 ;
③下列情况将使测定结果偏大的是 (以下选择填空不限1个正确答案,
均用字母编号填写)
(a)CuO 未全部还原为Cu (b )CuO 受潮 (c)CuO 中混有Cu
(2)如果仍采用上述仪器装置.........
,其他方案可选用测定的物理量有 (a )m(Cu)和m (CuO ) (b )m(N 2)和m(H 2O)
(c )m(Cu)和m(H 2O) (d)m(NH 3)和m(H 2O)
三、计算题(本题包括1小题,共8分)
10.(8分)为测定一种混合氧化物(也称为多元氧化物,例如NiFe2O4,也可写成NiO·Fe2O3的形式)的组成,称取12.52g 样品,将其全部溶于过量稀硝酸后,配成100mL溶液。
取其一半,加入过量K2SO4溶液,生成白色沉淀,经过滤、洗涤、烘干后得4.66g固体。
在余下的50mL溶液中加入过量NaOH溶液,只生成一种红褐色沉淀,将沉淀过滤、洗涤、灼烧后得3.20g固体。
(1)计算样品中氧元素的质量分数(保留1位小数)。
(2) 确定该混合氧化物的化学式。
江苏省苏州中学2005年国际班、科大少年预备班招生考试
化学试卷参考答案
1.C 2.C 3.B 4.C 5.B
6.KIO3 碘元素bc
7.FeCl3NaOH H2SO4Na2CO3
8.Na3PO4+3AgNO3==Ag3PO4↓+3NaN O3
Na3PO4+2AgNO3+H2O==Ag2HPO4↓+2NaN O3+NaOH
过滤,测滤液的pH值,pH>7为Ag2HPO4沉淀,pH=7为Ag3PO4沉淀
9.bcacd
()
()
2
18
16
m CuO
m H O
-ac ac
10.20.4%BaFe2O4或BaO·Fe2O3。