北京市丰台区2014届高三第二学期统一练习（一）
理科综合 生物部分2014.03
1．下列基本单位对应有误．．
的是 A ．核酸：核苷酸 B ．酶：氨基酸 C ．人体：细胞 D ．进化：种群
2．有关生物体内信息传递过程有误．．
的是 A ．DNA →RNA →蛋白质 B ．T 细胞→淋巴因子→B 细胞
C ．胰岛B 细胞→胰高血糖素→骨骼肌
D ．胚芽鞘尖端→生长素→尖端下部
3．切叶蚁中体型较大的蚂蚁将叶片咬下运回巢穴，交给体型较小的蚂蚁咬成小片，后者再交给体型更小的蚂蚁咬成更小的片，以此类推直至叶片被咀嚼为糊状，然后切叶蚁将叶糊平铺在巢穴中“养殖”真菌。真菌可以分解叶片中坚韧的组织，切叶蚁则以真菌为食。切叶蚁体表覆盖一层链霉菌，该菌可抑制本巢穴真菌寄生物的大量繁殖。由此能得出的推论是 A ．“植物→真菌→切叶蚁”构成一条捕食食物链 B ．体型大小不同的切叶蚁间存在互利共生的关系
C ．该生态系统的各种生物组分之间完成能量流动和物质循环
D ．蚂蚁能长期控制巢内真菌寄生物是共同(协同)进化的结果
4．通常禽流感病毒只能侵染鸟类，人流感病毒只能侵染哺乳类。现用高致病性禽流感病毒和
低致病性人流感病毒（哺乳类感染病毒后基本无症状）的核酸完成如下实验，该实验不．
能．说明
A ．步骤①说明流感病毒的基因是有遗传效应的DNA 片段
B ．步骤②需要同种限制酶和DNA 连接酶处理cDNA 和质粒
C ．通过③和④产生的活病毒可能是不同病毒间核酸重组的结果
D ．步骤⑤说明猪的呼吸道上皮细胞可作为活病毒的宿主细胞
5．高中生物学实验中，以下操作对估测结果的数值准确性影响最大的一项是 A ．估测细胞周期各期时长，可统计多个视野中各时期细胞数量所占比例 B ．估测狭长样地中蒲公英数量，可用等距取样法选取样方
C ．估测培养液中酵母菌的种群数量，可用滴管从静置培养液的中层取样
D ．估测土壤浸出液中的细菌数量，可采用稀释涂布平板法
禽流感病毒核酸
禽流感病毒cDNA 的cDNA
含禽流感病
毒的
的重组质粒 毒的的重组质粒
细
活病毒
猪患
流
感
② ②
④
⑤
29．（16分）为研究种植密度较高的玉米田中去叶对单株和群体产量的影响，研究者选取开花后3天的植株进行处理，从顶部去除不同数量叶片，每隔13天测定穗位叶的叶绿素含量和光合速率（代表单株产量），同时在一定面积的样方中测定群体光合速率（代表群体产量）。结果如图。（备注：穗位叶位于植株中下部，其生长状况直接影响玉米籽粒中有机物的积累量。）
（1）叶绿素分布于组成叶绿体基粒的__________薄膜上，光反应阶段产生的ATP和[H]将直接参与暗反应阶段中__________过程，进而形成有机物。
（2）由图1可知，去叶13天测定时，穗位叶的叶绿素含量随着__________而增大。本实验中，穗位叶的叶绿素含量始终高于空白对照组的处理为__________。
（3）由图2可知，随顶部去除叶片数量增加，__________的光合速率持续增加，原因可能是穗位叶获得的光照和CO2更充足。已知其他叶片的光合产物能补充穗位叶生长和玉米籽粒发育所需，若去除顶部叶片过多，可导致穗位叶和玉米籽粒的有机物__________降低，使其积累的有机物减少，造成减产。
（4）综合上述结果可推测，种植密度较高的玉米田中适度去除顶部叶片，可使玉米单株光合速率和群体光合速率__________。
（5）为确认穗位叶的光合产物是否向遮光叶片运输而导致减产，可进一步设计实验：对玉米植株顶部2片叶遮光处理；用透明袋包住穗位叶，不影响其正常生长。实验时向包住穗位叶的透明袋中通入__________，其他生长条件适宜，一段时间后检测__________。
30．（18分）果蝇红眼（E）对白眼（e）为显性。研究者得到果蝇杂交实验的结果如下：P 白眼雌蝇×红眼雄蝇
↓
F1红眼雌蝇红眼雄蝇白眼雌蝇白眼雄蝇
（1）红眼和白眼为一对__________，控制该眼色的基因位于X染色体上，遵循__________定律，据此推断上述杂交产生的果蝇本应表现的性状为__________两种，若F1只出现这两种性状时，则亲子代间性状表现出的遗传特点为__________。
（2）已知果蝇X染色体数量多于Y染色体数量时表现为雌性，只含有来自于父方的X染色体时表现为雄性。根据上述杂交实验推测：
①亲代雌蝇产生的异常卵细胞中，性染色体的组成为__________（选填选项前的符号）。
a．X E X E b．X e X e c．X e d．O（表示无X染色体）
②受精卵中X染色体多于2条或不含有X染色体时，会引起胚胎致死或夭折，亲代异常
卵细胞与正常精子受精后，果蝇的基因型为__________（选填选项前的符号）。
a．X e X e Y b．X e X e X e c．X E O d．YO
（3）通过记录F1中异常染色体组成的受精卵数（用“M”表示）和受精卵总数（用“N”表示），可计算得到F1中正常雄蝇的比例，算式为__________。
（4）研究者利用显微镜观察细胞中__________的行为证实了上述推测，通过进一步观察发现F1中异常雌蝇与正常雄蝇交配时，异常后代的存活率非常高，可能是初级卵母细胞在减数分裂过程中更倾向于分配到细胞两极的性染色体分别为__________。
31．（16分）研究者为了研究神经元之间兴奋的传递过程，选用枪乌贼的神经组织进行实验，
（1）第I组处理说明枪乌贼神经元兴奋时，膜外比膜内电位__________75mV。室温下，微电极刺激突触前神经元测得动作电位0.5ms后，才能测到突触后神经元的动作电位，这被称为“兴奋的延迟”，延迟的原因之一是突触前膜以__________的方式释放__________，该物质被突触后膜上的__________识别。
（2）已知河豚毒素对于突触后膜识别信息分子的敏感性无影响，从II、III、IV组推断，突触后神经元动作电位的降低应该是__________直接引起的，由此可知河豚毒素对神经兴奋的传递起__________作用。
（3）若利用河豚毒素的生理作用开发药物，可作__________（选填选项前的符号）。
a．降糖药b．麻醉药 c．镇痛剂 d．抗肌肉痉挛剂
（4）研究者利用水母荧光蛋白标记突触前神经元，直接观察到突触前膜先出现钙离子内流，之后引发突触小泡的定向移动。药物BAPTA能迅速结合钙离子，现将该药物注入突触小体内，若突触前神经元的__________，则说明钙离子不影响突触前神经元产生神经冲动，但对于神经元之间兴奋的传递是必需的。
内蒙古包头市第四中学2018届高考理综模拟试题 本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。其中第Ⅱ卷第33～40题为选考题，其它题为必考题。考生作答时，将答案写在答题卡上，在本试卷上答题无效。 第Ⅰ卷(共126分) 有关元素的相对原子质量是： H-1 C-12 N-14 O-16 F-19 Na-23 S-32 Cl-35.5 K-39 Ca-40 Fe-56 Zn-65 一、选择题：本题包括13小题。每小题6分，共78分，每小题只有一个选项符合题意。 1．比较胚胎干细胞与胰腺腺泡细胞，相同的是( ) A．线粒体的功能 B．发育的全能性 C．膜蛋白的种类和数量 D．内质网上核糖体的数量 2．我国古代劳动人民积累的丰富农业生产经验，至今许多仍在实践中应用。下列叙述与植物激素作用无直接关系的是( ) A．适时打顶去心，可促植株开花结实。（据《农桑辑要》） B．肥田之沃，种绿豆最佳，小豆、芝麻次之。（据《齐民要术》） C．正月种白稻，五月收获后，根茬长新稻，九月又成熟。（据《广志》） D．前摘未熟红杮，每篮放木瓜两三枚，得气即发，涩味尽失。（据《格物粗谈》） 3. 人或动物PrP基因编码一种蛋白(PrP c),该蛋白无致病性。 PrP c的空间结构改变后成为PrP Bc(朊粒)， 就具有了致病性。PrP Bc可以诱导更多PrP c的转变为PrP Bc，实现朊粒的增——可以引起疯牛病.据此判——下列叙述正确的是( ) A.朊粒侵入机体后可整合到宿主的基因组中 B.朊粒的增殖方式与肺炎双球菌的增殖方式相同 C.蛋白质空间结构的改变可以使其功能发生变化 D. PrP c转变为PrP Bc的过程属于遗传信息的翻译过程 4.下列与实验有关的叙述，正确的是( ) A．人的口腔上皮细胞经处理后被甲基绿染色，其细胞核呈绿色 B．剪取大蒜根尖分生区，经染色在光镜下可见有丝分裂各时期 C．叶绿体色素在层析液中的溶解度越高，在滤纸上扩散就越慢 D．在光镜的高倍镜下观察新鲜菠菜叶装片，可见叶绿体的结构 5. 大豆植株的体细胞含40条染色体。用放射性的60Co处理大豆种子后，筛选出一株抗花叶病的植株X， 取其花粉经离体培养得到若干单倍体植株，其中抗病植株占50%。下列叙述正确的是( )
* * 丰台区2017年高三年级第二学期综合练习（一） 英语 2017. 03 注意事项： 1. 答题前，考生务必先将答题卡上的学校、年级、班级、姓名、准考证号用黑色字迹签字笔填写清楚，并认真核对条形码上的准考证号、姓名，在答题卡的“条形码粘贴区”贴好条形码。 2. 本次考试所有答题均在答题卡上完成。选择题必须使用2B铅笔以正确填涂方式将各小题对应选项涂黑，如需改动，用橡皮擦除干净后再选涂其它选项。非选择题必须使用标准黑色字迹签字笔书写，要求字体工整、字迹清楚。 3. 请严格按照答题卡上题号在相应答题区内作答，超出答题区域书写的答案无效，在试卷、草稿纸上答题无效。 4. 请保持答题卡卡面清洁，不要装订、不要折叠、不要破损。 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。 1. What is the man’s plan for his holiday? A.To go to Hawaii. B. To go to Hong Kong. C. To stay at home. 2. What pet does the man decide to keep finally? A. A dog. B. A cat. C. A rabbit. 3. What time will the woman leave? A. At 13:00. B. At 14:30. C. At 16:20. 4. Where does this conversation take place? A. On the train. B. In the airplane. C. In the hotel. 5. What is the woman doing? A. Offering the man some advice. B. Telling the man some bad news. C. Playing a joke on the man. 第二节（共10小题；每小题1.5分，共15分） 听下面4段对话或独白。每段对话或独白后有几道小题，从每题所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有5秒钟的时间阅读每小题。听完后，每小题将给出5秒钟的作答时间。每段对话或独白你将听两遍。 听下面一段对话，回答第6至7两道小题。 6. What is Lucy’s New Year resolution? A. To take more exercise. B. To make big money. C. To do better in Chinese. 7.What is the relationship between the two speakers? A. Family members. B. Friends. C. Classmates. 听下面一段对话，回答第8至9两道小题。 8. Which function does the man use more? A. Making calls. B. Sending messages. C. Surfing the internet. 9. Who is the woman? A. An interviewer. B. A salesgirl. C. A postman. 听下面一段独白，回答第10至12三道小题。 10. Which of the followings can be used as identification? A. The admission ticket. B. The library card. C. The student ID card. 11. What can’t be brought? A.Cellphones. B. Calculators. C. Passports. 12. What is the woman doing? A.Making weekend plans. B.Sharing her experience. C.Offering some tips. 听下面一段对话，回答第13至15三道小题。 13. Where does the woman work? A. In the supermarket. B. In the restaurant. C. In
海淀区高三年级第二学期期中练习 英语2015.04 本试卷共12页，共150分。考试时长120分钟。 注意事项：1．考生务必将答案答在答题卡上，在试卷上作答无效。 2．答题前考生务必将答题卡上的姓名、准考证号用黑色字迹的签字笔填写。 3．答题卡上选择题必须用2B铅笔作答，将选中项涂满涂黑，黑度以盖住框内字母为准，修改时用橡皮擦除干净。非选择题必须用黑色字迹的签字笔按照题号顺序在各题目的答题区域内作答，未在对应的答题区域内作答或超出答题区域作答的均不得分。 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。 1. Where is the woman going? A. To a bank. B. To a mall. C. To a street. 2. When will the meeting be held? A. This afternoon. B. Tomorrow. C. Next week. 3. What are the speakers talking about? A. Job. B. Salary. C. Travel. 4. What is the woman doing? A. Asking for permission. B. Making a complaint. C. Ordering a dish. 5. How much will the man pay for the apples? A. $ 1. B. $ 75. C. $ 5. 第二节（共10小题；每小题1.5分，共15分）听下面4段对话或独白。每段对话或独白后有几道小题，从每题所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有5秒钟的时间阅读每小题。听完后，每小题将给出5秒钟的作答时间。每段对话或独白你将听两遍。 听第6段材料，回答第6至7题。 6. Wh at’s the purpose of the woman’s visit? A. Visiting friends. B. Sightseeing. C. Business. 7. Where does the conversation take place? A. At the customs. B. At the police office. C. At the hotel. 听第7段材料，回答第8至9题。 8. Which section does the man show most interest in the newspaper? A. News. B. Sports. C. World affairs. 9. What newspaper does the woman usually buy? A. A local one. B. A national one. C. An international one. 听第8段材料，回答第10至12题。 10. What does the woman worry about the gym? A. The noise. B. The air. C. The crowd. 11. Why does the man go to the gym? A. To lose weight. B. To do exercise. C. To meet people. 12. What does the man suggest the woman do? A. Eat less. B. Set limits. C. Exercise properly. 听第9段材料，回答第13至15题。 13. Who is the speaker? A. A taxi driver. B. A police officer. C. A radio announcer. 14. What makes driving a taxi a hard job in London? A. Bad traffic condition. B. Confusing street names. C. Lots of tests. 15. What will the speaker probably do if he’s stuck on the road in a taxi? A. Have a map ready. B. Be understanding. C. Change directions. 第三节（共5小题；每小题1.5分，共7.5分）听下面一段对话，完成第16至20五道小题，每小题仅填写一个 ．．词。听对话 第一节单项填空（共15小题；每小题1分，共15分）从每题所给的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。 21. Mary has her weakness, ______ that doesn’t mean she is not qualified for her job. A. and B. yet C. so D. or 22. _______ Chai Jing said in her video about the smog has caused public concern. A. That B. Which C. How D. What 23. When I was pushed onto the stage, I felt all the eyes in the hall _______ me. A. through B. across C. into D. on 24. You ______ reach him on his mobile now—his mobile is still under repair. A. should n’t B. wouldn’t C. c an’t D. must n’t 25. The paper ox my grandmother ______ for me is my most valued birthday gift. A. cut B. will cut C. had cut D. cuts 26. —It i s said that John’s paper got an A+.—He deserves it. He _____a lot before he handed it in. A. prepared B. prepares C. had prepared D. has prepared 27.___ opinions on the schedule, we finally reached an agreement. A.Having exchanged B.Exchanging C.Exchanged D.To exchange 28. The long lasting cold current has brought _______winter in my memory to the east coast of the United States. A. the longer B. the longest C. a longer D. a long 29. Mike will become the first person in his family ______ college education. A. finished B. having finished C. finishing D. to finish 30. Prince William took a visit to the Forbidden City on Feb. 28, _______ emperors once lived. A. which B. whose C. where D. when 31. _______ she has earned her PhD, she wants to find a job with higher pay. A. As if B.Now that C. Even though D. In case 32. — Has James arrived at the hotel?— No, he ______ by fans for photographs at the airport. A. has surrounded B. would surround C. was surrounded D. is being surrounded
高三理综检测试题 化学部分 （总分值108） 斗鸡中学 王亚萍 第一部分 必答题 一．选择题（每小题6分，共48分） 1．设N A 为阿伏加德罗常数，下列说法正确的是( ) A ．标准状况下，5.6 L 四氯化碳含有的分子数为0.25N A B ．标准状况下，14 g 氮气含有的核外电子数为5N A C ．标准状况下，22.4 L 任意比的氢气和氯气的混合气体中含有的分子总数均为N A D ．标准状况下，铝跟氢氧化钠溶液反应生成1 mol 氢气时，转移的电子数为N A 2。已知14 mol/L 的H 2SO 4溶液的溶质质量分数为80%，那么7 mol/L 的H 2SO 4溶液的溶 质质量分数将( ) A ．大于40% B ．等于40% C ．小于40% D ．无法确定 3．已知在pH 为4左右的环境中，Cu 2＋ 、Fe 2＋ 几乎不水解，而Fe 3＋ 几乎完全水解。工业上 制CuCl 2是将浓盐酸用蒸气加热到80℃左右，再慢慢加入粗氧化铜(含少量杂质FeO)，充分搅拌使之溶解。欲除去溶液中的杂质离子，下述方法中可行的是( ) A ．加入纯Cu 将Fe 2＋ 还原为Fe B ．向溶液中通入H 2S 使Fe 2＋ 沉淀 C ．向溶液中通入Cl 2，再通入NH 3，调节pH 为4左右 D ．向溶液中通入Cl 2，再加入纯净的CuO 粉末调节pH 为4左右 4．下列物质按不同类别分组，所得组合最不合理的是( ) ①糖类 ②塑料 ③石油 ④蛋白质 ⑤合成纤维 ⑥棉花 ⑦陶瓷 ⑧玻璃 ⑨天然气 ⑩水泥 ?合成橡胶 ?煤 ?油脂 ?羊毛 A.①④? B ．②⑤? C ．⑦⑧?? D ．③⑨? 5．下列反应的离子方程式正确的是( ) A.浓烧碱溶液中加入铝片：Al ＋2OH － ===AlO － 2＋H 2↑ B ．以石墨作电极电解氯化铝溶液：2Cl －＋2H 2O=====电解2OH － ＋H 2↑＋Cl 2↑ C ．硫酸亚铁溶液与稀硫酸、双氧水混合：2Fe 2＋ ＋H 2O 2＋2H ＋ ===2Fe 3＋ ＋2H 2O D ．硫酸氢钠溶液与足量氢氧化钡溶液混合：2H ＋ ＋SO 2－ 4＋Ba 2＋ ＋2OH － ===BaSO 4↓ ＋2H 2O 6．硝酸在铝和硝酸镁的混合溶液中，逐滴加入稀氢氧化钠溶液，直至过量。下列表示氢 氧化钠加入量(x )与溶液中沉淀的量(y )的关系示意图中正确的是( )
丰台区2016-2017学年度第二学期高三英语综合练习一 2017. 03 注意事项：1. 答题前，考生务必先将答题卡上的学校、年级、班级、姓名、准考证号用黑色字迹签字笔填写清楚，并认真核对条形码上的准考证号、姓名，在答题卡的“条形码粘贴区”贴好条形码。 2. 本次考试所有答题均在答题卡上完成。选择题必须使用2B 铅笔以正确填涂方式将各小题对应选项涂黑，如需改动，用橡皮擦除干净后再选涂其它选项。非选择题必须使用标准黑色字迹签字笔书写，要求字体工整、字迹清楚。 3. 请严格按照答题卡上题号在相应答题区内作答，超出答题区域书写的答案无效，在试卷、草稿纸上答题无效。 4. 请保持答题卡卡面清洁，不要装订、不要折叠、不要破损。 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。 1. What is the man’s plan for his holiday? A.To go to Hawaii. B. To go to HongKong. C. To stay at home. 2. What pet does the man decide to keep finally? A. A dog. B. A cat. C. A rabbit. 3. What time will the woman leave? A. At 13:00. B. At 14:30. C. At 16:20. 4. Where does this conversation take place? A.On the train. B.In the airplane. C.In the hotel. 5. What is the woman doing? A. Offering the man some advice. B. Telling the man some bad news. C. Playing a joke on the man. 第二节（共10小题；每小题1.5分，共15分）听下面4段对话或独白。每段对话或独白后有几道小题，从每题所给的A 、 B 、 C 三个选项中选出最佳选项。听每段对话或独白前，你将有5秒钟的时间阅读每小题。听完后，每小题将给出5秒钟的作答时间。每段对话或独白你将听两遍。 听下面一段对话，回答第6至7两道小题。 6. What is Lucy’s New Year resolution? A. To take more exercise. B. To make big money. C. To do better in Chinese. 7. What is the relationship between the two speakers? A. Family members. B. Friends. C. Classmates. 听下面一段对话，回答第8至9两道小题。 8. Which function does the man use more? A. Making calls. B. Sending messages. C. Surfing the internet. 9. Who is the woman? A. An interviewer. B. A salesgirl. C. A postman. 听下面一段独白，回答第10至12三道小题。 10. Which of the followings can be used as identification? A.The admission ticket. B.The library card. C.The student ID card. 11. What can’t be brought? A.Cellphones. B. Calculators. C. Passports. 12. What is the woman doing? A.Making weekend plans. B.Sharing her experience. C.Offering some tips. 听下面一段对话，回答第13至15三道小题。 13. Where does the woman work? A. In the supermarket. B. In the restaurant. C. In the grocery store. 14. Why does the man do the job? A.To be able to work outdoors. B.To earn more money for school. C.To get exercise while working. 15. What does the woman think of the man’s job? A. Tiring. B. Boring. C. Interesting. 第三节（共 5小题；每小题1.5分，共7.5分）听下面一段对话，完成第16题至第20 题五道小题，每小题仅填写一个词。听对话前，你将有20秒钟的时间阅读试题，听完后你将有60秒钟的作答时间。这段对话你将听两遍。 第一节单项填空（共15小题；每小题1分，共15分） 从每题所给的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。 21. Congratulations on the great progress you________since last year. A. make B. have made C. were making D. will have made 22. According to the author, those ________ enjoy reading will never feel lonely. A. when B. who C. where D. which 23. —Have I filled out the application correctly, Mr. Smith?—Well,you ________ one question here. A. missed B. miss C. will miss D. are missing 24. The key point is not who said the words, but ________ they are true or not. A. what B. when C. that D. whether 25. It ________for two weeks, and the whole area is flooded. A.had rained B.rains C. would rain D. has been raining 26. It’s an excellent job offer. Don’t let such a good opportunity ________ through your fingers. A. slipped B. to slip C. slip D. slipping 27. The sponsors agreed that they would support us ________ we didn’t break the rules. A. as well as B. as soon as C. as far as D. as long as 28. When ________, the project will help to greatly improve the air quality in the community. A. finishing B. to finish C. finish D. finished
海淀区高三年级第二学期期中练 第二部分：知识运用（共两节，45分） 21. She calls back whenever someone ______ her a message. A. left B. leaves C. had left D. will leave 22. The purpose of the article is to draw public attention ______ the problem. A. to B. on C. in D. for 23. ______ the task in time, we had to work late into the night. A. Finished B. Finishing C. To finish D. Having finished 24. I know little about the accident because not much ______ about it up to now. A. has said B. has been said C. had said D. had been said 25. She ______ have attended that meeting, for she was doing paperwork in the office then. A. shouldn?t B. mustn?t C. wouldn?t D. couldn?t 26. We?re advised not to leave the water ______ after using it. A. run B. running C. to run D. having run 27. Mr. Smith couldn?t open the door because his naughty boy ______ it from the inside. A. would lock B. was locking C. has locked D. had locked 28. —Jeff, what?s up? You are not yourself today. — Oh, mom. I really wish I ______ the chance but I failed. A. had got B. would get C. will get D. got 29. This kind of cell phone is very common and I also have ______. A. one B. it C. that D. another 30. The paintings ______ from the National Gallery last week have been found. A. stealing B. to steal C. stolen D. to be stolen 31. You cannot take back your words ______ they are out of your mouth. A. before B. whether C. once D. while 32. The App WeChat provides a networking platform ______ communication is faster and easier. A. which B. where C. when D. why 33. —Did you sleep well last night? — No, the loud noise from the street ______ me awake for hours. A. had kept B. is keeping C. has kept D. kept 34. — Have you told your parents about your decision? — Not yet. I can hardly imagine ______ they will react. A. what B. that C. how D. when 35. I think the biggest problem in banning smoking is ______ people can buy cigarettes easily. A. that B. whether C. where D. how 第二节完形填空（共20小题；每小题1.5分，共30分） The Little Angel Sally jum ped up the moment she saw the surgeon come out of the operating room. She asked, “How is my little boy?”The surgeon said, “I?m __36__. We did all we could, but your boy didn?t __37__ it.” Sally __38__into the chair. The surgeon asked, “Would you like so me time with your son before he was transported to the __39__?” Sally nodded. While saying goodbye, she ran her fingers __40__ through his thick curly hair. “Would you like a lock of his hair?” the surgeon asked. Sally nodded yes. The surgeon cut a few hai rs, and handed them to Sally. The mother said, “It was Jimmy?s idea to __41__ his body to the university for study. He said it might __42__ somebody else. “I said no at first, __43__ Jimmy said, …Mom, I won?t be using it after I die. Maybe it will help som e other little boy spend one more day with his Mom.”
吉安一中2020届高考模拟卷理科综合（六） 可能用到的相对原子质量：H1C12O16Na23Si28P31S32Mn55一、选择题：本题共13小题，每小题6分，共78分。在每小题给出的四个选项中只有一项是符合题目要求的。 1．以下判断细胞死活的方法及解释正确的是 A．用较高浓度的硝酸钾溶液处理洋葱外表皮细胞，一段时间后用显微镜未能观察到质壁分离现象，说明是死细胞 B．用健那绿处理人体蛔虫的体细胞，显微镜下没有发现被染成蓝绿色的线粒体，说明是死细胞C．通过显微镜观察到黑藻的叶绿体在细胞质中运动，并随着照射光线的强弱而改变受光面，说明是活细胞 D．因为活细胞膜具有选择透过性，用甲基绿吡罗红未能将人口腔上皮细胞的细胞核染成红色说明是活细胞 2．科学家从动物的胰脏中分离到一类低分子 量的蛋白质（Ub），能对细胞中的异常蛋白 （靶蛋白）贴上“标签”，被贴标签的靶蛋 白随即被蛋白酶水解，其过程如下图所示， 相关说法错误的是（注：AMP为一磷酸腺苷） A．Ub为靶蛋白贴标签的过程需要消耗能量B．靶蛋白水解过程与人消化道内蛋白质水解过程不同C．Ub在维持细胞内环境的稳态的过程中有重要作用D．Ub在靶蛋白水解过程中起到催化的作用3．图1为光学显微镜下观察到的某植物细胞质壁分离实验结果图，图2为质壁分离及其复原实验流程图，下列说法正确的是A．图1细胞若继续发生质壁分离，则该细胞的吸水增强 B．图1所示结果只能在图2中C处观察到 C．图1若视野比较暗，则只能通过调节反光镜使视野变亮 D．图1图2 所用的细胞中心法则是：DNA→RNA→蛋白质 4．人类色盲中有红绿色盲和蓝色盲之分。某地区正常居民中约有44%为蓝色盲基因携带者，下图为该地区某一家族遗传系谱图，下列有关说法正确的是 A．蓝色盲属于伴X染色体隐性遗传病 B．10号体内细胞最多有4个色盲基因 C．11号和12号生一个两病兼患男孩的概率为1/12 D．若13号与该地区一表现型正常的男性结婚，后 代患蓝色盲的概率是11/200 5．将某种二倍体植物①、②两个植株杂交,得到③,将③再做进一步处理,如下图所示。下列分析不正确的是 A．由⑤×⑥过程形成的⑧植株不属于一个新物种 B．由⑦到⑨的过程中,通常利用适宜浓度的秋水仙素处 理萌发的种子或幼苗 C．若③的基因型为AaBbdd,则⑩植株中能稳定遗传的个 体占总数的1/4 D．由③到④的育种过程依据的主要原理是基因突变 6．对如图所示实验的分析，正确的是
2021年北京市丰台区高三一模考试英语试卷学校:___________姓名：___________班级：___________考号：___________ 一、单项选择 1．His early comedies were filmed________black and white． A． of B． with C． in D． by 12．--- Excuse me, where can I get my car filled up? --- There are gas stations at________end of the block． A．both B．neither C．either D．all
15．Although the test ________ look like a simple one, great care is needed. A．may B．must C．should D．need 二、完形填空 阅读下面短文，掌握其大意，然后从1—20各题所给的四个选项（A、B、C和D）中，选出最佳选项。 Though she had been in a coma（昏迷）for nearly six months, it was still a 16 when my grandmother passed away．I was not yet thirteen when she 17 ．I'd understood that death awaited her, but in those first moments of knowing, I could not 18 that "eventually" had finally come to pass． Friends came to the funeral home to pay their last respects to my grandmother and to show their support for my mother．Not 19 where to be or what to do, I stayed off to the side．The 20 finally ended with the arrival of my friend Kelly． Kelly and I had been friends ever since she was three and Four．We were “home" friends, the kind who rode bikes together after school, went 21 to a KFC a few blocks away, even though we weren't allowed to leave the block． At the funeral home, Kelly came right to me．In her hands were two packages of M&M's．Kelly knew that was one of my 22 ．We had often taken long trips to the store for 23 ．We sat in the back, eating M&M's and talking quietly．A 24 experience had suddenly become easier to bear, with a childhood offering of chocolates and the 25 of a devoted friend． Trying to come up with something to offer a heartbroken person is 26 ．Kelly had understood, even at twelve, that there wasn't much she could do to reduce my pain 27 be there with me and bring something that just might make me 28 ． Now, whenever Kelly and I find ourselves at funeral home for family member of ours, the other has always shown up 29 M&M's, a small offering of 30 to take the edge off the hovering sorrow．We've 31 that when we' re old, the one who dies first will have a crazy old lady throwing M&M' s into her grave．M&M's will 32 be significant to me．They will 33 me that even when something as painful and powerful as 34 comes to claim what’s most important to me, there will always be Kelly… and her chocolate．M&M's, melt（溶解）in your 35 , not in your hand． 16．A．shock B．topic C．story D．custom 17．A．returned B．died C．cried D．recovered
2014北京海淀区高三一模英语(Word解析版)
海淀区高三年级第二学期期中练习 英语 2014.04 注意事项： 1．考生务必将答案答在答题卡上，在试卷上作答无效。 2．答题前考生务必将答题卡上的姓名、准考证号用黑色字迹的签字笔填写。 3．答题卡上选择题必须用2B铅笔作答，将选中项涂满涂黑，黑度以盖住框内字母为准，修改时用橡皮擦除干净。非选择题必须用黑色字迹的签字笔按照题号顺序在各题目的答题区域内作答，未在对应的答题区域内作答或超出答题区域作答的均不得分。 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。
1. Where are the speakers? A. At a bank. B. At a hotel. C. At an airport. 2. What’s the relationship between the two speakers? A. Neighbors. B. Roommates. C. Friends. 3. What does the man want to buy？ A. B. C. 4. What was the man fined for? A. Wrong parking. B. Running a red light. C. Driving too fast. 5. When does the flight leave? A. At 8:30 am. B. At 9:00 am. C. At 9:30 am. 第二节（共10小题；每小题1.5分，共15分）听下面4段对话。每段对话后有几道小题，
7.化学与生产、生活密切相关。下列与化学有关的事实及其相关化学方程式的书写都正确的是 选 项 事实化学方程式 A 家庭用的“84”消毒液与洁厕灵不能同时混合使 用 HClO+H++Cl-=Cl2↑+H2O B 可用生石灰做工业废气脱硫剂2CaO+2SO2+O2=2CaSO4 C 可用蘸硫酸的玻璃棒检验输送氨气的管道是否 漏气 H++ NH3=NH4+ D 侯德榜用饱和食盐水、氨气、CO2 制备纯碱2NaCl + 2NH3+ CO2 + H2O=2NH4Cl + Na2CO3 8.下列关于有机物的叙述不正确的是 A.乙酸的分子模型可表示为 B.糖类、油脂、蛋白质都是高分子化合物 C 新制的氢氧化铜可以鉴别乙酸、葡萄糖和乙醇 D.丁酸和乙酸乙酯互为同分异构体 9.设N A 为阿伏加德罗常数的值。下列有关叙述正确的是 A.1mol甲醇中含有的共价键数为4N A B.1mol 氯气分别与铁和铝完全反应时转移的电子數均为3 N A C.电解精炼铜，当电路中通过的电子数目为0.2N A 时，阳极质量减少6.4g D.1mol CH3COONa 和少量CH3COOH 溶于水所得中性溶液中，CH3COO-的数目为N A 10.下列实验操作中，对应的实验现象以及实验结论都正确且两者具有因果关系的是 实验操作实验现象实验结论 A 向碳酸钠溶液中先滴入酚酞，再滴加稀盐酸溶液先变红，后溶液红色变 浅直至消失 非金属性:Cl>C B 将氯化铝溶液蒸干析出白色固体白色固体是氯化铝 C 取少量某无色溶液，先滴加氯水，再加入少 量苯，振荡、静置溶液分层，下层呈紫红色原无色溶液中一定有 I- D 将铜片放入浓碗酸中，加热产生大景气体，溶液变为蓝 色浓硫酸具有强氧化性和酸性