2013年北京西城区二模理综化学试题word版6．对下列物质用途的解释不正确
．．．的是( )
A B C D
用途抗坏血酸(Vc)可作抗氧
化剂
明矾可用于净水纯碱可去油污“84”消毒液可用于漂白
解释Vc具有酸性明矾在水中生成的氢氧化
铝胶体有吸附性
纯碱水解呈碱性置于空气中生成的次氯酸有氧化性
．．．4
+
C．乙炔与苯的实验式均为CH D．过氧化钠与过氧化氢中均含有非极性键
8．下列离子方程式正确的是( )A．Fe与盐酸反应制H2：2Fe＋6H+＝2Fe3+＋3H2↑
B．用石墨电极电解饱和食盐水：2H+＋2Cl—电解
Cl2↑＋H↑C．用AlCl3和氨水制备Al(OH)3：Al3+＋3OH-＝Al(OH)3↓
D．向Mg(OH)2浊液中滴入FeCl3溶液：3Mg(OH)2(s)＋2Fe3+2Fe(OH)3(s)＋3Mg2+
9．合成某吸水性树脂的单体是丙烯酸钠(CH2＝CHCOONa),下列关于丙烯酸钠的说法不正确
．．．的是( )
A．水溶液呈碱性B．经加聚反应得树脂C．存在顺反异构D．使酸性KMnO4溶液褪色
10．下列实验操作不能
．．达到预期实验目的的是( )
11．一定条件下,碳钢腐蚀与溶液pH的关系如下：
下列说法不正确
．．．的是( )
A．在pH＜4溶液中,碳钢主要发生析氢腐蚀
B．在pH＞6溶液中,碳钢主要发生吸氧腐蚀
C．在pH＞14溶液中,碳钢腐蚀的正极反应为
O2＋4H+＋4e—＝2H2O
D．在煮沸除氧气后的碱性溶液中,碳钢腐蚀速率会减缓
12．工业上消除氮氧化物的污染,可用如下反应：CH4(g)＋
2NO2(g)N2(g)＋CO2(g)＋2H2O(g);ΔH＝a kJ/mol
在温度T1和T2时,分别将0.50 molCH4和1.2 molNO2充入体积为1 L的密闭容器中,测得n(CH4)随时间变化数据如下表：
下列说法不正确
．．．的是( )A．10 min内,T1时υ(CH4)比T2时小B．温度：T1＜T2C．ΔH：a＜0 D．平衡常数：K(T1)＜K(T2)
25．(14分)铝及其化合物在生产生活中具有重要的作用。(1)铝在元素周期表中的位置是。
(2)已知电负性的数值表示原子对电子吸引能力的相对大小。以下是几种原子的电负性数值：
①铝的电负性χ的范围是。②电负性的数值与元素金属性的关系是。
③下列实验能比较镁和铝的金属性强弱的是。a．测定镁和铝的导电性强弱
b．测定等物质的量浓度的Al2(SO4)3和MgSO4溶液的pH c．向0.1 mol/LAlCl3和0.1 mol/L MgCl2中加过量NaOH溶液(3)铝热法是常用的金属冶炼方法之一。已知：4Al(s)＋3O2(g)＝2Al2O3(s) ΔH1＝-3352 kJ/mol
Mn(s)＋O2(g)＝MnO2(s);ΔH2＝-521 kJ/molAl与MnO2反应冶炼金属Mn的热化学方程式是。
(4)冶炼金属铝时,用石墨做电极电解熔融Al2O3。液态铝在(填“阴”或“阳”) 极得到,电解过程中,阳极石墨需要不断补充,结合电极反应说明其原因是
26．(12分)钛铁矿的主要成分为FeTiO3(可表示为FeO·TiO2),含有少量MgO、CaO、SiO2等杂质。利用钛铁矿制备锂离子电池电极材料(钛酸锂Li4Ti5O12和磷酸亚铁锂LiFePO4)的工业流程如下图所示：
已知：FeTiO3与盐酸反应的离子方程式为：FeTiO3＋4H+＋4Cl-＝Fe2+＋TiOCl42-＋2H2O
(1)化合物FeTiO3中铁元素的化合价是。(2)滤渣A的成分是。
(3)滤液B中TiOCl42- 转化生成TiO2的离子方程式是。
(4)反应②中固体TiO2转化成(NH4)2Ti5O15溶液时,Ti元素的浸出率与反应温度的关系如下图所示。反应温度过高时,Ti元素浸出率下降的原因是。
(5)反应③的化学方程式是。
(6)由滤液D制备LiFePO4的过程中,所需17%双氧水与H2C2O4的质量比是。
(7)若采用钛酸锂(Li4Ti5O12)和磷酸亚铁锂(LiFePO4)作电极组成电池,其工作原理为：
Li4Ti5O12＋3LiFePO4Li7Ti5O12＋3FePO4 该电池充电时阳极反应式是。27．(16分)某小组同学为探究H2O2、H2SO3、Br2氧化性强弱,设计如下实验(夹持仪器已略去,装置的气密性已检验)。
请回答下列问题：
(1)A中反应的离子方程式是。
(2)实验操作II吹入热空气的目的是。
(3)装置C的作用是,C中盛放的药品是。
(4)实验操作III,混合液逐渐变成红棕色,其对应的离子方程式。
(5)由上述实验得出的结论是。
(6)实验反思：
①有同学认为实验操作II吹入的热空气,会干扰(5)中结论的得出,你认为是否干扰,理由是
。
②实验操作III,开始时颜色无明显变化的原因是(写出一条即可)：
。
28．(16分)A、B均为重要的有机化工原料。
请回答下列问题：(1)A分子内含有苯环,其名称是。
(2)B分子中只有一种氢原子,2 mol B反应生成1 mol C的化学方程式是：
。
(3)B的一种同分异构体能发生银镜反应,该反应的化学方程式是：
。
(4)D分子内有3个甲基,其结构简式是。
(5)F的结构简式是。(6)F和L反应生成G是加成反应,L的结构简式。
(7)A与B反应生成J的化学方程式是。
(8)K分子内含有六元环,可发生水解反应,其结构简式是。
参考答案
25．(14
(1)第3周期第ⅢA族
(2)
①电负性数值越大,元素的金属性越弱
② 1.2＜χ＜1.8
③c
(3)4Al(s)＋3MnO2(s)＝3Mn(s)＋2Al2O3(s) ΔH＝–1789 kJ/mol
(4)阴
在阳极发生反应2O2-– 4e-＝O2↑,C＋O2＝CO2,石墨由于被消耗需要不断补充
26．(12分,每空2分)
(1)+2
(2)SiO2
(3)TiOCl42-＋H2↓＋2H+＋4Cl-
(4)温度过高时,反应物氨水(或双氧水)受热易分解
(5) (NH4)2Ti5O15＋2LiOH＝Li2Ti5O15↓＋2NH3·H2O(或2NH3＋2H2O)
(6)20/9(1分)
(7)LiFePO4– e-＝FePO4＋Li+(1分)
27．(16分,每空2分)
(1)2Br-＋Cl2＝Br2＋2Cl-
(2)吹出单质Br2
(3)吸收尾气NaOH溶液
(4)H2O2＋2Br-＋2H+＝Br2＋2H2O
(5)氧化性：H2O2＞Br2＞H2SO3
(6)
①不干扰,无论热空气是否参加氧化H2SO3,只要观察到产生白色沉淀的同时无明显颜色变化,即能证明Br2氧化了H2SO3
②H2SO3有剩余(H2O2浓度小或Br-与H2O2反应慢等因素都可)
28．(16分,每空2分)
(1)苯酚
(2)
(3)CH
(4)
(5)
(6)
(7)
2019北京西城区高三二模 英语 2019.5 本试卷共10页，共120分。考试时长100分钟。考生务必将答案答在答题卡上，在试卷上作答无效。考试结束后，将本试卷和答题卡一并交回。 第一部分：知识运用（共两节，45分） 第一节语法填空（共10小题；每小题1.5分，共15分） 阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写 1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。 A When I was in high school our physics teacher gave us a challenge 1 involved making a paper airplane of any shape. The only objective was to get it to fly as far as possible. 2 (stand) at the starting line, one of my classmates took a piece of flat paper, crumpled (把…捏成一团) it up, and 3 (throw) it down the way. He beat the class with ease. Some of the students got mad and said that he cheated, but the physics teacher 4 (clear) explained it could be any shape and that a paper ball was indeed a shape. B Buildings around the world 5 (go) dark for 60 minutes this evening in a voluntary event known as Earth Hour. This grassroots effort started in 2007 in Sydney, Australia, and has since grown into 6 global movement to raise awareness of our energy consumption and the effects of climate change on our planet. Anyone can participate in this movement 7 switching off the lights at 8:30 PM local time. Last year close to 18,000 landmark buildings switched off their lights in 188 countries. Will you dim your lights tonight? C The story of Chinese fashion began in 2011 when Feiyue and Huili, both Chinese sneaker brands, suddenly gained international attention. Their products 8 (see) on models all over the world then. Last year, Chinese sportswear brand LI-NING was at the New York Fashion Week in September with new designs 9 (decorate) with Chinese characters. Now the Chinese brands are impressive and ambitious and can go head to head with foreign brands. And this ambition may be due to the fact that China’s young people are now more confident about 10 (they) own culture. 第二节完形填空（共20小题；每小题1.5分，共30分） 阅读下面短文，掌握其大意，从每题所给的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。 The Gift of Forgiveness The summer I turned 16, my father gave me his old 69 Chevy Malibu convertible. What did I know about classic cars? For me, the important thing was that Hannah and I could 11 around Tucson with the top down. Hannah was my best friend, a year younger but much 12 . That summer she 13 with a modeling agency, doing catalog and runway work.
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2010年西城区中考二模英语试题 听力理解(共24分) 一、听对话，选择与对话内容相符的图片。(共4分，每小题1分) 1． 2． 3． 4． 二、听对话和独白，根据对话和独自的内容，选择正确选项。(共12分，每小题1分)现在请听一段对话，完成第5至第6小题。 5. When does the first class begin? A. At 8:30. B. At 9:30. C. At 2:30. 6. How many classes are there in the evening? A. 0. B. 1. C. 2. 现在请听一段对话，完成第7至第8小题。 7. Who will go to see the doctor? A. Mike. B. Alice. C. Betty.
8. When will they go to see the film? A. On Friday. B. On Saturday. C. On Sunday. 现在请听一段对话，完成第9至第10小题。 9. Where are they talking? A. At home. B. At school. C. In the street. 10. What should they do first? A. Follow the teacher. B. Wash the hands. C. Listen and watch. 现在请听一段对话，完成第11至第13小题。 11. What was the boy doing in the park? A. Riding a bike. B. Playing with a cat. C. Walking the dogs. 12. The boy hurt his head yesterday because A. he fell off the bike B. the dogs ran after him C. he had a car accident 13. The boy's mother A. hurt her arm B. stayed in hospital C. was all right 现在请听一段独白，完成第14至第16小题。 14. Which part is the most difficult one in the program? A. Searching. B. Collecting. C. Carrying. 15. What color cans are for waste? A. Pink. B. Blue. C. White. 16. What you hear might be A. an advertisement B. an introduction C. a piece of news 三、听一段对话，记录关键信息。(共8分，每小题2分) 请根据听到的内容和提示词语，将所缺的关键信息填写在答题卡的相应位置上。 知识运用(共27分) 四、单项填空(共15分。每小题1分) 从下面各题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳选项。 21. My mother is a manager, and _________ works in Lenovo in Zhongguancun. A. she B. he C. her D. him 22. — Where's our library? — It's _________ the right side of the teacher's office. A. at B. for C. on D. in 23. — Must ! stay here with you? — No, you _________. Just do your own business.
西城区2014年高三二模 理综物理部分 13．放射性同位素衰变的快慢有一定的规律。氡222衰变为钋 218的规律如图所示。纵坐标表示的是任意时刻氡222的质 量m 与t = 0时的质量m 0的比值。下列说法正确的是（） A ．氡222的半衰期是7.6天 B ．氡222的半衰期是3.8天 C ．若升高温度，氡222的半衰期将变长 D ．若升高温度，氡222的半衰期将变短 答案：B 解析过程：放射性元素的原子核有半数发生衰变所需的时间，叫做这种元素的半衰期，放射性元素衰变的快慢是由核内部自身的因素决定的，跟原子所处的化学状态和外部条件没有关系。 14．如图所示，将一个半圆形玻璃砖置于空气中，当一束单色光入射到玻璃砖的圆心O 时，下列情况不可能 发生的是（） 答案：A 解析过程：光线由光疏介质射向光密介质在界面同时发生反射和折射，反射角等于入射角，折射角小于入射角；当光线由光密介质射向光疏介质，入射角小于临界角时，在界面同时发生反射和折射，反射角等于入射角，折射角大于入射角，入射角大于等于临界角时，在界面 发生全反射，反射角等于入射角，没有折射光线射出。 15．如图，一列简谐横波向右传播，质点a 和b 的平衡位置相距0.5m 。某时刻质点a 运动到波峰位置时，质点b 刚好处于平衡位置向上运动。这列波的波长可能是（） A ．1m B ．2m C ．0.5m D ．0.67m 答案：B 解析过程：按题意描绘波形图，可知a 、b 平衡位置之间的距离可能为1 ()4 n λ+（n =0,1,2...） 由1 ()0.5m 4n λ+=，可得2m (14) n λ=+（n =0,1,2...），当n 取0时，2m λ=。 A B D C a b 左
北 京 市 西 城 区 九 年 级 模 拟 测 试 英语试卷 2020.6 知识运用（共 14 分） 一、单项填空（共 6 分，每小题 0.5 分） 从下面各题所给的 A 、B 、C 、D 四个选项中，选择可以填入空白处的最佳选项。 1. —May I use your phone, Sally? I left at home. —Sure, here you are. A. yours B. his C. hers D. mine 2. —Peter, where’s Mom? —She’s the kitchen. A. for B. in C. of D. on 3. I enjoy movies online at home on rainy days. A. watch B. to watch C. watching D. watched 4. How confident she looks! She be ready for the competition. A. need B. must C. can D. would 5. Hurry up, we will miss the best part of the show. A. or B. and C. but D. although 6. One of challenges for people is to believe in themselves. A. big B. bigger C. biggest D. the biggest 7. —Mary, leave today’s newspaper on the table, please. I it yet. —OK, Dad. A. won’t read B. am not reading C. haven’t read D. was not reading 8. If the lake continues to be protected, more fish in it over the next several years. A. there are B. there will be C. there were D. there have been 9. Tony and I table tennis once a week. He plays better than I do. A. play B. will play C. played D. have played 本试卷共 9 页，共五道大题，39 道小题。满分 60 分。考试时间 90 分钟。 在试卷和答题卡上准确填写学校、班级、姓名和学号。 试题答案一律填写在答题卡上，在试卷上作答无效。 在答题卡上，选择题用 2B 铅笔将选中项涂黑涂满，其他试题用黑色字迹签字笔作答。 考试结束时，将本试卷、答题卡一并交回。 1. 2. 3. 4. 5. 考 生 须 知
西城区高三模拟测试 理科综合2018.5 本试卷共17页，共300分。考试时长150分钟。考生务必将答案答在答题卡上，在试卷上作答无效。考试结束后，将本试卷和答题卡一并交回。 第一部分（选择题共120分）本部分共20小题，每小题6分，共120分。在每小题列出的四个选项中，选出最符合题目要求的一项。1．下图是食物促进胃上皮细胞分泌胃酸的过程。胃酸除了具有辅助消化功能之外，还能导致胃灼热。下列说法错误 ．．的是 胃酸B．H+/K+-A T P酶将H+泵到内环境中会增加胃液酸性 C．胃酸分泌时上皮细胞朝向胃腔的膜面积有所增大 D．组织胺抑制物和H+/K+-A T P酶抑制物均可减轻胃灼热 2． DNA损伤时，核蛋白多聚腺苷二磷酸-核糖聚合酶（PARP）在核内积累，可引起细胞凋亡，过程如下图所示。下列说法错误 ．．的是A．产物A D P-核糖的组成元素是C、H、O、N、P B．在核糖体上合成的P A R P通过核孔进入细胞核 C．细胞质N A D+浓度下降，只影响有氧呼吸过程 D．D N A损伤后，细胞能量供应减少导致自身死亡
3．脱落酸（ABA）和赤霉素（GA）在种子萌发中起重要作用。用35S- 甲硫氨酸“饲喂”不同激素处理的大麦种子，提取蛋白质进行电泳，结果如右图。下列说法错误A．在图中所示的蛋白质中，α-淀粉酶大 B．35S-甲硫氨酸是合成淀粉酶等蛋白质的 C．A B A能拮抗G A诱导的α-淀粉酶合D．G A通过抑制某些蛋白质合成抑制 4．栎树是某森林中主要的生产者，舞毒蛾啃食栎树。栎树盛果期时丰富的果实会把白尾鹿吸引到森林中，鹿身上的扁虱会跳到森林地面产卵。大量的栎树果实也吸引着白足鼠，扁虱卵孵化出的幼虫吸食白足鼠血和人血，同时会将白足鼠体内的螺旋菌传播给人类，使人类患上莱姆病。下列相关分析错误．．的是A．扁虱与鼠、鹿、人之间的寄生关系导致螺旋菌传播到人 B．舞毒蛾数量增加使栎树减产，人类患莱姆病的风险增加 C．栎树盛果期时，该区域人类患上莱姆病的风险明显提高 D．生物多样性是维持生态系统结构和功能稳态的必要条件5．利用竞争酶联免疫检测技术，检测抗虫棉中Bt抗虫蛋白表达量，原理如下图所示。检测之前，将“目的蛋白”的特异性抗体固定在支持物上，待测样本中的抗原和酶标记抗原竞争结合固相抗体，标记抗原的酶可催化颜色反应。下列说法错误．．的是 A．检测过程中待测抗原和酶标记抗原均为B t抗虫蛋白 B．需设置仅有酶标记抗原或者仅有待测抗原的两组对照 C．实验组和对照组加入底物的量及显色时间必须一致 D．反应体系中蓝色越深说明待测样品B t蛋白含量越高6．下列物质的分离方法中，利用粒子大小差异的是 A．B．．D． 7．4种短周期元素在周期表中的位置如下图，X原子最外层有6个电子。下列说法不正确 ．．．的是A．离子半径：X2?＜Y2? B．非金属性W＜X C．还原性：Z? D．酸性：H2Y O4＜H Z O4 W
2020年北京市西城区初三二模英语试卷 2020.06 知识运用(共14分) 一、单项填空(共6分，每小题0.5分) 从下面各题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳选项。 1. -May I use your phone, Sally? I left _____ at home. -Sure, here you are. A. yours B. his C. hers D. mine 2. -Peter, where’s Mom? -She’s ________ the kitchen. A. for B. in C. of D. on 3. I enjoy _________ movies online at home on rainy days. A. watch B. to watch C. watching D. watched 4. How confident she looks! She _______ be ready for the competition. A. need B. must C. can D. would 5. Hurry up, ________ we will miss the best part of the show. A. or B. and C. but D. although 6. One of _________ challenges for people is to believe in themselves. A. big B. bigger C. biggest D. the biggest 7. -Mary, leave today’s newspaper on the table, please. I _______ it yet. -OK, Dad. A. won’t read B. am not reading C. haven’t read D. was not reading 8. If the lake continues to be protected, _______ more fish in it over the next several years. A. there are B. there will be C. there were D. there have been 9. Tony and I ________ table tennis once a week. He plays better than I do. A. play B. will play C. played D. have played 10. -Excuse me, can we check in now? -Just a moment please. I ________ a problem of our computer. A. fix B. fixed C. am fixing D. have fixed
2013年北京市西城区高三二模数学理科含答案
北京市西城区2013年高三二模试卷 高三数学（理科） 2013.5 第Ⅰ卷（选择题 共 40分） 一、选择题：本大题共8小题，每小题5分，共40 分．在每小题列出的四个选项中，选出符合题目要求的一项． 1．已知全集{0,1,2,3,4}U =，集合{0,1,2,3}A =，{2,3,4}B =，那 么()U A B = I e （A ）{0,1} （B ）{2,3} （C ）{0,1,4} （D ）{0,1,2,3,4} 2．在复平面内，复数1 z 的对应点是1 (1,1)Z ，2 z 的对应 点是2 (1,1)Z -，则1 2 z z ?= （A ）1 （B ）2 （C ）i - （D ）i 3．在极坐标系中，圆心为(1,)2 π，且过极点的圆的方程是 （A ）（ B ）（ C ）（ D ）
2sin =ρθ 2sin =-ρθ 2cos =ρθ 2cos =-ρθ 4．如图所示的程序框图表示求算式“235917????” 之值， 则判断框内可以填入 （A ）10k ≤ （B ）16k ≤ （C ）22k ≤ （D ）34k ≤ 5．设1 2 2a =，13 3b =，3 log 2c =，则 （A ）b a c << （B ）a b c << （C ）c b a << （D ）c a b << 6．对于直线m ，n 和平面α，β，使m ⊥α成立的一个充分条件是 （A ）m n ⊥，n ∥α （B ）m ∥β，⊥βα
（C ）m ⊥β，n ⊥β，n ⊥α （D ）m n ⊥，n ⊥β，⊥βα 7．已知正六边形ABCDEF 的边长是2，一条抛物线恰 好经过该六边形的四个顶点，则抛物线的焦点到准线的距离是 （A 3 （B 3（C 3（D ）3 8．已知函数()[]f x x x =-，其中[]x 表示不超过实数x 的 最大整数．若关于x 的方程()f x kx k =+有三个不同的实根，则实数k 的取值范围是 （A ）111[1,)(,]243--U （B ）111 (1,][,)243--U （C ）111[,)(,1]342 --U （D ）111(,][,1)342 --U
北京市西城区2013年高三二模试卷 第一节单项填空（共15小题；每小题1分，共15分） 21. Mary is a humorous and warm-hearted woman and that is ______ she is a most popular person in her community. A. whether B. because C. how D. why 22. ---Where are the papers for the Smith project? ---They are in the folder ______ “S”. A. marking B. marked C. to be marked D. to mark 23. The movie Life of Pi is so attractive that it holds the audience’s curiosity ______ the story reaches the end. A. until B. before C. after D. when 24. ---______ you leave now? You only arrived an hour ago! ---Sorry, but so much homework is waiting for me. A. Must B. May C. Can D. Might 25. Taking regular exercise and eating a balanced diet are two important keys ______ good health. A. in B. from C. of D. to 26. Naturally a smile ______ the eyes participate is extremely communicative. A. to which B. in which C. at which D. with which 27. I’m just getting out of the city for a few days ________ some space and clear my head. A. gotten B. getting C. to get D. having gotten 28. With the audience _____ at her, the little girl felt nervous on the stage. A. staring B. to stare C. stare D. stared 29. ---Why wasn’t John hired for the job? ---I don’t know, but he _____. A. was B. had been C. should have D. should have been 30. It was today’s activity _____ let me know the importance of teamwork. A. where B. which C. that D. what 31. J.K. Rowling ______ writing Harry Potter at a local café because she could not afford to heat her home. A. started B. starts C. has started D. had started 32. ---Can I come after dinner? ---Yes, that’s fine. I ______ anything. A. don’t do B. won’t do C. won’t be doing D. am not doing 33. ---Do you know our school at all? ---No, this is the first time I ____ here. A. was B. have been C. came D. am coming 34. All the preparations for the task ______, and we’re ready to start. A. completed B. have completed C. will be completed D. have been completed 35. With increasing working pressure, Anthony has ______ time to spend with his friends than before. A. much B. more C. less D. least 第二节完形填空（共20小题；每小题1.5分，共30分） So tired as I was, I bothered myself to open up my café shop on the cold morning. With many consumers streaming in, I knew another long business day began. And I had to serve far into the night. As I rushed among the tables, suddenly, a 36 asked if I could mind a child. I was quite 37 but I could tell the man was quite desperate. So I had to make a 38 with him that if he wanted his son to stay and wait for him he had to 39 something in the shop. This was quite 40 for the man to do; I could 41 he was quite poor by the 42 he was dressed. It looked as if he had tried to come in his 43 clothes. But they still looked a bit old and worn out 44 he had often worn them, just to make himself look best. Looking down I could see his 45 were also a bit torn and the heels were in a terrible state. I thought he was going for a job interview. In the end he bought a small box of 46 for his little son and seated him down in the corner. I could tell the boy was feeling down and only could 47 with a bit of cheering up. Seeing that the kid sat there for quite a while, I was a bit 48 as the poor little kid was sitting 49 his own. People watched him and some kids even came over to pick on him. I was 50 to see one of them even knocked his cookies off the table. He quickly went and got them back without saying a word. I was hoping his father would 51
北京市西城区2018届高三5月模拟测 试（二模） 理科综合 本试卷共17页，共300分。考试时长150分钟。考生 务必将答案答在答题卡上，在试卷上作答无效。考试结束后， 将本试卷和答题卡一并交回。 第一部分（选择题共120分） 本部分共20小题，每小题6分，共120分。在每小题列出的四个选项中，选出最符合题目要求的一项。 1．下图是食物促进胃上皮细胞分泌胃酸的过程。胃酸除了具有辅助消化功能之外，还能导致胃灼热。下列说法错误 ．．的是 A．食物和组织胺作为信号促进胃上皮细胞分泌胃酸 B．H+/K+-ATP酶将H+泵到内环境中会增加胃液酸性 C．胃酸分泌时上皮细胞朝向胃腔的膜面积有所增大 D．组织胺抑制物和H+/K+-ATP酶抑制物均可减轻胃 灼热 2．DNA损伤时，核蛋白多聚腺苷二磷酸-核糖聚合酶 （PARP）在核内积累，可引起细胞凋亡，过程如下图 所示。下列说法错误 ．．的是 A．产物ADP-核糖的组成元素是C、H、O、N、P B．在核糖体上合成的PARP通过核孔进入细胞核 C．细胞质NAD+浓度下降，只影响有氧呼吸过程 D．DNA损伤后，细胞能量供应减少导致自身死亡 3．脱落酸（ABA）和赤霉素（GA）在种子萌发中起重要作用。用35S-甲硫氨酸“饲喂”不同激 素处理的大麦种子，提取蛋白质进行电泳，结果如右图。下列说法错误 ．．的是
A．在图中所示的蛋白质中，α-淀粉酶分子最大 B．35S-甲硫氨酸是合成淀粉酶等蛋白质的原料 C．ABA能拮抗GA诱导的α-淀粉酶合成 D．GA通过抑制某些蛋白质合成抑制萌发 4．栎树是某森林中主要的生产者，舞毒蛾啃食栎树。栎树盛果期时丰富的果实会把白尾鹿吸引到森林中，鹿身上的扁虱会跳到森林地面产卵。 大量的栎树果实也吸引着白足鼠，扁虱卵孵化出的 幼虫吸食白足鼠血和人血，同时会将白足鼠体内的 螺旋菌传播给人类，使人类患上莱姆病。下列相关 分析错误 ．．的是 A．扁虱与鼠、鹿、人之间的寄生关系导致螺旋菌 传播到人 B．舞毒蛾数量增加使栎树减产，人类患莱姆病的风险增加 C．栎树盛果期时，该区域人类患上莱姆病的风险明显提高 D．生物多样性是维持生态系统结构和功能稳态的必要条件 5．利用竞争酶联免疫检测技术，检测抗虫棉中Bt抗虫蛋白表达量，原理如下图所示。检测之前，将“目的蛋白”的特异性抗体固定在支持物上，待测样本中的抗原和酶标记抗原竞争 结合固相抗体，标记抗原的酶可催化颜色反应。下列说法错误 ．．的是 A．检测过程中待测抗原和酶标记抗原均为Bt抗虫蛋白 B．需设置仅有酶标记抗原或者仅有待测抗原的两组对照 C．实验组和对照组加入底物的量及显色时间必须一致 D．反应体系中蓝色越深说明待测样品Bt蛋白含量越高 29.（16分） 胸腺素是胸腺产生的对淋巴细胞分化、成熟具有重要作用的多肽激素总称。为了解免疫系统与大脑早期发育的关系，以新生小鼠为对象开展了相关研究。 （1）胸腺是______细胞发育成熟的场所，作为机体的免疫器官和______器官发挥作用。破坏小鼠胸腺会影响______免疫。 （2）为研究胸腺素对新生小鼠学习和记忆的影响，将新生小鼠随机分成两组，实验组小鼠前4天每天皮下注射20μL胸腺素，与对照组置于相同的环境下培养，进行相关实验。 ①开放旷场实验：将小鼠置于“旷场”装置中，记录小鼠在旷场中的活动，结果如图1 所示。由图可知______，说明实验组小鼠具有更强的好奇心和探索欲等学习能力。
北京市西城区2015高三二模试卷 英语 2015.5 本试卷共14页，共150分。考试时长120分钟。考生务必将答案答在答题卡上，在试卷上作答无效。考试结束后，将本试卷和答题卡一并交回。 第一部分听力理解 (共三节，30分) 第一节(共5小题；每小题1.5分，共7.5分) 听下面5段对话。每段对话后有一道小题.从每题所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。每段对话你将听一遍。 例：What is the man going to read? A. A newspaper. B. A magazine. C. A book . 答案是A。 1. What will the woman do tomorrow night? A. Have dinner with the man. B. Work overtime in the office. C. Join the man for coffee. 2. What is the season now? A. Autumn. B. Spring. C. Summer. 3. Where does the dialogue probably take place? A. At the man’s home. B. At the dining hall. C. At the restaurant. 4. When will the woman probably get to the railway station? A. At 6:30 p.m. B. At 7:00 p.m. C. At 7:30 p.m. 5. What can we learn about the woman? A. She’s got a new job. B. She’s hunting for a job. C. She hired a foreigner. 第二节(共10小题；每小题1.5分，共15分) 听下面4段对话。每段对话或独白后有几道小题，从每题所给的A、B、C三
北京市西城区2018年九年级模拟测试 英语试卷2018.5 知识运用(共14分) 一?单项填空(共6分，每小题0.5分) 从下面各题所给的A?B?C?D四个选项中，选择可以填入空白处的最佳选项? 1. —Jane，is this your bag? —No. bag is pink. A. I B. My C. Me D. Mine 2. Life the 1900s was very different from what it is now. A. in B. on C. from D. by 3. The horse is too old to run as as it did. A. fast B. faster C. fastest D. the fastest 4. Hurry up， we'll have to wait another two hours for the next train. A. and B. but C. or D. so 5. —Jim， do you go to the gym?You look fit. —Twice a week. A. how often B. how far C. how much D. how long 6. —Sam，I called you yesterday，but you were not at home. —Oh，I at my aunt's. A. am B. was C. have been D. will be 7. —Tomorrow my dad a big dinner for my birthday party. —Sounds great!Have a good time. A. cooks B. was cooking C. cooked D. will cook 8. —Why didn't you open the door for me just now? —Sorry，I a bath. A. will take B. am taking C. was taking D. take 9. —Have you seen the film Monkey King? —Yes. I it three times. It is so interesting. A. saw B. have seen C. will see D. am seeing 10. If you too much ice-cream，you will get sick. A. will eat B. were eating C. ate D. eat 11. —Do you know that 1,000,000,000 people are using WeChat? —Yes. It by more and more people around the world. A. accept B. accepted C. is accepted D. was accepted 12. —Dad，could you tell me next Sunday? —Nothing special. A. what you did B. what are you going to do C. what did you do D. what you are going to do 二?完形填空(共8分，每小题1分) 阅读下面的短文，掌握其大意，然后从短文后各题所给的A?B?C?D四个选项中，选择最佳选项? Throughout history，people have used jewelry(珠宝) to make their clothes look more special. Jewelry was，and still is，in fashion all over the world. Through the years，people have worn jewelry for different 13 :to make themselves look beautiful，to protect them from bad things，and to 14 how much money they have.