北京市海淀区高三年级第一学期期中练习
化 学 试 题
本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共100分。考试时间120分钟。答题时请将第Ⅰ卷每小题的正确答案选出后，填在第4页答卷表格的相应空格中，若仅答在第Ⅰ卷上则不给分。请将第Ⅱ卷各题的答案直接答在试卷的相应位置上。
可能用到的相对原子质量：
H
第Ⅰ卷（选择题 共45分）
本卷共15道小题，每小题3分，共45分。每小题只有一个选项符合题意。
1．化学与生活、社会密切相关。下列说法不正确的是 （ ）
A．我国规定商家不得无偿提供塑料袋，目的是减少“白色污染”
B．乙醇是一种易燃烧污染小的可再生能源，但只能在实验室内作燃料
C．化石燃料不可再生，使用太阳能代替化石燃料，有利于节约资源、保护环境
D．积极开发废电池的综合利用技术，防止其中的重金属盐对土壤和水源造成污染
2．下列说法正确的是 （ ）
A．电解质溶液导电属于物理变化
B．由一种元素组成的物质一定是纯净物
C．金属氧化物不一定是碱性氧化物
D．水的净化、消毒都属于氧化还原反应
3．下列实验能达到预期目的的是 （ ）
A．通过电泳实验证明胶体带电
B．通常利用丁达尔效应区别溶液与胶体
C．渗析实验说明胶体粒子能透过半透膜
D．向煮沸的NaOH溶液中滴加FeCl3溶液可制备Fe(OH)3胶体
4．正确掌握好化学用语是学好化学的基础，下列有关表述正确的是 （ ）
A．次氯酸的电子式：
B．质量数为16的氧原子：
C．乙烯的结构简式：
D．碳酸氢根离子的电离方程式： HCO3- + H2O
H3O++ CO32-－
5．下列物质的分类正确的是 （ ）
混合物
非电解质
碱
酸式盐
A
漂白粉
Cl2
氨水
NaHCO3
B
福尔马林
苯
Cu2(OH)2CO3
明矾
C
胆矾
SO2
纯碱
NH4Cl
D
食醋
C2H5OH
苛性钾
NaHSO4
6．茉莉醛具有浓郁的茉莉花香，其结构简式为：
关于茉莉醛的下列表述不正确的是 （ ）
A．难溶于水 B．属于芳香烃
C．在一定条件下能发生氧化反应 D．在一定条件下能生成高分子化合物
7．下列排列顺序正确的是 （ ）
①酸性：H3PO4 > H2SO4 > HClO4
②热稳定性：H2O > HF > H2S
③原子半径：Na>Mg>O
④还原性：F－ > Cl－ > S2－
⑤结合H+的能力：OH－＞CH3COO－＞Cl－
A．③⑤ B．②③ C．①③④ D．②④⑤
8．有关硫酸铜晶体里结晶水含量测定的实验，下列表述正确的是 （ ）
A．将坩埚直接放在三角架上进行加热
B．坩埚在加热前未完全干燥，可使测定的结果偏低
C．加热温度过高，使一部分硫酸铜分解，可使测定结果偏高
D．实验步骤的顺序为：称量、研磨、加热、冷却、称量、再加热、冷却、称量
9．用NA代表阿伏加德罗常数的数值，下列表述正确的是 （ ）
A．等物质的量的OH－与羟基(－OH)所含电子数相等
B．
C．
D．常温常压下，
10．对于密闭容器中的可逆反应：mX (g) + nY(s) 
pZ (g)；ΔH<0，达化学平衡后，改变条件，下列表述不正确的是 （ ）
A．增大压强，化学平衡不一定发生移动
B．通入氦气，化学平衡不一定发生移动
C．增加X或Y的物质的量，化学平衡一定发生移动
D．其它条件不变，升高温度，化学平衡一定发生移动
11．有关下列表述 （ ）
①16O2与18O2互为同位素
②C2H4与C6H12互为同系物
③淀粉与纤维素互为同分异构体
④白磷与红磷是同素异形体，它们之间的转化是物理变化
⑤碳与硅是同主族元素，故CO2与SiO2结构相似，性质相似
⑥PCl3和BCl3分子中所有原子的最外层都达到8电子稳定结构
A．都不正确 B．只有①③⑤正确 C．只有②④⑤正确 D．只有①②⑥正确
12．下列离子方程式书写正确的是 （ ）
A．硫化钠水解：S2－＋2H2O 
H2S↑＋2OH－
B．碳酸钠溶于醋酸溶液中：CO32－ ＋ 2 H＋＝ H2O ＋ CO2↑
C．次氯酸钙溶液中通入过量二氧化碳：Ca2+ + 2ClO－+H2O+CO2 ＝CaCO3↓+2HClO
D．过量的硫酸氢钠与氢氧化钡溶液反应：Ba2＋＋2OH－＋2H＋＋SO42－＝BaSO4↓＋2H2O
13．下列表述正确的是 （ ）
A．NaHCO3溶液中：c(H+) + c(H2CO3) ＝ c(OH－)
B．中和等体积、等pH相同的盐酸和CH3COOH溶液所消耗的NaOH物质的量相同
C．pH＝2的HA溶液与pH＝12的MOH溶液以任意比混合后，所得溶液中：
c(H+) + c(M+) ＝ c(OH－) + c(A－)
D．在水电离出的H＋浓度为1×10－12 mol/L的溶液中，K+、Mg2+、NO3－、I－一定能大量共存
14．下列说法正确的是 （ ）
A．将氯化铝和硫酸铝溶液蒸干灼烧后均得到氧化铝
B．向足量饱和石灰水中加入
C．由碱金属元素形成的单质熔点随原子序数的递增逐渐降低
D．向稀醋酸中加入醋酸钠固体，溶液pH升高的主要原因是醋酸钠水解呈碱性
15．X、Y、Z三种气体，取X和Y按2∶1的物质的量之比混合，放入固定体积的密闭容器中发生如下反应：X + 2Y2Z ，达到平衡后， X的转化率不可能为 （ ）
A．25% B．20% C．15% D．10%
第Ⅱ卷（非选择题 共55分）
16．（共4分）
某实验小组为探究ClO－、I2、SO42－在酸性条件下的氧化性强弱，设计实验如下：
实验①：在淀粉碘化钾溶液中加入少量次氯酸钠溶液，并加入少量的稀硫酸，溶液立即变蓝；
实验②：向实验①的溶液中加入4 mL 0.5 mol/L的亚硫酸钠溶液，蓝色恰好完全褪去。
（1）写出实验①中发生反应的离子方程式 。
（2）实验②中化学反应转移电子的物质的量是 。
（3）以上实验说明，在酸性条件下ClO－、I2、SO42－的氧化性由弱到强的顺序是_________________。
17．（共10分）
元素周期表是学习物质结构和性质的重要工具，下面是元素周期表的一部分，表中所列字母A、D、E、G、Q、M、R、T分别代表某一化学元素。请用所给元素回答下列问题。
A
D
E
G
Q
M
R
T
（1）某元素原子的核外电子层数是最外层电子数的3倍，该元素的原子结构示意图为 。
（2）某些元素的原子可形成与Ar具有相同电子层结构的简单离子，这些离子的半径由大到小的顺序是（填离子符号）
。
（3）M、D两种元素形成的化合物含有的化学键类型是 ，其分子是（填“极性”或“非极性”） 分子；
A分别与D、E、R形成的分子中，分子间存在氢键的是（填分子式） 。
A与D形成分子的空间结构可能是（填序号）
。
a
b
c
d
图1
（4）从所给元素中组成合适的反应物，用化学方程式
表明元素M、R的非金属性强弱：
。
（5）第三周期主族元素单质熔点高低的顺序如图2所
示，“1”所代表物质的化学式是 ，
“7”所对应的元素形成最高价氧化物的晶体类型
是 。
图2
18．(共6分)现有浓度均为0.1 mol/L的下列溶液：①硫酸、
②醋酸、③氢氧化钠、④氯化铵、⑤醋酸铵、⑥硫酸铵、
⑦硫酸氢铵，⑧氨水，请回答下列问题：
（1）①、②、③、④四种溶液中由水电离出的H+浓度由大到小的顺序是（填序号）
。
（2）④、⑤、⑥、⑦、⑧五种溶液中NH4+浓度由大到小的顺序是（填序号） 。
（3）将③和④等体积混合后，混合液中各离子浓度由大到小的顺序是 。
（4）已知t℃，KW＝1×10－13，则t℃（填“>”或“<”或“＝”）
19．（共5分）
在密闭容器中投入一定量的A和B发生反应：m A(g)+n B(g) EMBED ChemWindow.Document p C(g)+q D(g)。
（1）若开始时加入A物质m mol，欲使A与B的转化率相等，则加入B物质_______mol 。
（2）相同的压强下，充入一定量的A、B后，在不同温度下C的百分
含量与时间的关系如图3所示。则T1(填“>”、“<”或“=”)________T2，
该反应的正反应的△H(填“>”、“<”或“=”)_________0。
（3）一定条件下，从正反应开始达到化学平衡过程中，混合气体的平均
相对分子质量随时间的变化如图4所示，测得达到平衡时A、B、C、
D的物质的量均为1 mol。
①若在恒温恒容的条件下，向该平衡体系中再通入A、B、C、D
1 mol，则体系中气体的平均相对分子质量（填“增大”、“减小”、
“不变”或“无法确定”） 。
②若恒温恒压的条件下，向原平衡体系中再通入A、B、C、D各1 mol，
则体系中气体的密度（填“增大”、“减小”、“不变”或“无法确定”） 。
20．（共8分）A和R在一定条件下可合成芳香族化合物E，已知A可以在一定条件下转化为G，且G在标准状况下密度为
图5
（1）A中所含官能团的名称为 ；①的反应类型为 。
（2）②的化学反应方程式为 。
M与新制氢氧化铜悬浊液反应的化学方程式 。
（3）与E具有相同官能团，且苯环上只有一个取代基的同分异构体还有5种，它们是：
、 
、 
_________ _、 。
21．（共6分）某实验小组用0.50 mol/L NaOH溶液和0.50 mol/L硫酸溶液进行中和热的测定。
Ⅰ．配制0.50 mol/L NaOH溶液
（1）若实验中大约要使用245 mL NaOH溶液，至少需要称量NaOH固体 g。
（2）从图6中选择称量NaOH固体所需要的仪器是（填字母）： 。
图6
Ⅱ．测定中和热的实验装置如图7所示。
（1）写出稀硫酸和稀氢氧化钠溶液反应表示中和热的热化学
方程式（中和热数值为57.3 kJ/mol）：
。
（2）取50 mL NaOH溶液和30 mL硫酸溶液进行实验，实验
数据如下表。
①请填写下表中的空白： 图7
温度
实验次数
起始温度t1/℃
终止温度
t2/℃
温度差平均值
（t2-t1）/℃
H2SO4
NaOH
平均值
1
26.2
26.0
26.1
30.1
2
27.0
27.4
27.2
33.3
3
25.9
25.9
25.9
29.8
4
26.4
26.2
26.3
30.4
②近似认为0.50 mol/L NaOH溶液和0.50 mol/L硫酸溶液的密度都是1 g/cm3，中和后生成溶液的比热容c=4.18 J/(g?℃)。则中和热△H= （取小数点后一位）。
③上述实验数值结果与57.3 kJ/mol有偏差，产生偏差的原因可能是（填字母） 。
a．实验装置保温、隔热效果差
b．量取NaOH溶液的体积时仰视读数
c．分多次把NaOH溶液倒入盛有硫酸的小烧杯中
d．用温度计测定NaOH溶液起始温度后直接测定H2SO4溶液的温度
22．（共9分）某课外活动小组同学用右图装置进行实验，试回答下列问题。
（1）若开始时开关K与a连接，则B极的电极反应式为 。
（2）若开始时开关K与b连接，则B极的电极反应式为 ， 总反应的离子方程式为 。
有关上述实验，下列说法正确的是（填序号） 。
①溶液中Na+向A极移动
②从A极处逸出的气体能使湿润KI淀粉试纸变蓝
③反应一段时间后加适量盐酸可恢复到电解前电解质的浓度
④若标准状况下B极产生
（3）该小组同学模拟工业上用离子交换膜法制烧碱的方法，那么可以设想用如图9装置电解硫酸钾溶液来制取氢气、氧气、硫酸和氢氧化钾。
图8 图9
①该电解槽的阳极反应式为 。此时通过阴离子交换膜的离子数 （填“大于”或“小于”或“等于”）一通过阳离子交换膜的离子数。
②制得的氢氧化钾溶液从出口（填写“A”、“B”、“C”、“D”） 导出。
③通电开始后，阴极附近溶液pH会增大，请简述原因 。
④若将制得的氢气、氧气和氢氧化钾溶液组合为氢氧燃料电池，则电池正极的电极反应式为 。
23．（共7分）铜合金是人类使用最早的金属材料，铜在化合物中的常见化合价有+l 、+2。已知Cu2O与稀硫酸反应，溶液呈蓝色。现向Cu、Cu2O和CuO组成的混合物中，加入
（1）写出Cu2O跟稀硝酸反应的离子方程式 。
（2）若将上述混合物用足量的H2加热还原，所得到固体的质量为 。
（3）若混合物中含0.1 mol Cu，将该混合物与稀硫酸充分反应，至少消耗H2SO4的物质的量为 。
（4）若混合物中Cu的物质的量为n mol，则n的取值范围为 。
重庆市万州区2008-2009学年高三第一次诊断性
语 文
语文试题分为两部分，满分150分，考试时间150分钟。
注意事项：
1．答题前，务必将自己的姓名、准考证号(或学号)填写在答题卷规定的位置上。‘。
2．所有题目必须在答题卷上作答，在试题卷上答题无效。
3．考试结束后，只上交答题卷(高考除外)。
第一部分 选择题
重庆市万州区2008-2009学年高三第一次诊断性
英语试题
本试卷分第I卷和第II卷两部分。满分150分。考试用时120分钟。考试结束后。将本试卷和答题卡一并交回。
注意事项：
1．答卷前，考生务必用0.5毫米黑色签字笔将自己的姓名、座号、准考证号填写在答题卡和试题卷规定的位置上。
2．第I卷每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；如需改
动，用橡皮擦干净后，再选涂其他答案标号。答案不能答在试题卷上。
3．第II卷必须用0.5毫米黑色签字笔作答，先划掉原来的答案，然后再写上新的答案；
不准使用涂改液、胶带纸、修正带。不按以上要求作答的答案无效。
第Ⅰ卷（三部分，共115分）
第一部分：听力理解(共三节，满分30分)
第一节(共5小题;每小题1.5分，满分7.5分)
听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳
选项，并标在试卷的相应位置。听完每段对话后，你都有l0秒钟的时间来回答有关小题
和阅读下一小题。每段对话仅读一遍。
例： How much is the shirt?
A. ₤19.15. B. ₤9.15. C. ₤9.18.
答案是B.
1. Where does the conversation most probably take place?
A. In a car. B. On a plane. C. On a farm.
2. What do the two speakers mean?
A. They enjoyed the party.
B. Their friends seemed rather old.
C. They met some funny people at the party.
3. What did the woman, want to do?
A. To celebrate her own birthday.
B. To give Tom a present for his birthday.
C. To come to Tom's birthday party.
4. What do we know from the conversation?
A. Something is wrong with the woman's telephone.
B. Something is wrong with the man's telephone.
C. Something is wrong with the woman's TV set.
5. In which direction is the woman going?
A. The north. B. The south. C. In the direction of the bus stop.
第二节(共15小题；每小题l.5分，满分22.5分)
请听下面5段对话或独白，选出最佳选项。
请听第6段材料，回答第6至8题。
6. Who is the woman?
A. Mr. Green's secretary. B. Mr. Smith's secretary. C. An operator:
7. When will Mr. Green come to
A. In the first week of October.
B. In the middle of November.
C. At the beginning of December.
8. How long will the conference last?
A. A week. B.3 days. C.5 days.
请听第7段材料，回答第9至11题。
9.What can we learn about the couple?
A. The husband likes to sit in the same chair.
B. The wife doesn't like to travel.
C. They are going to have a trip.
10. How long did the last vacation they talked about last?
A.10 days. B.10 weeks. C.3 or 4 weeks.
11. Why doesn't the wife like the kind of vacation the husband mentions?
A. It may cost a lot of money.
B. She doesn't like to go to so many places.
C. She dislikes going to many places and it may cost her a lot.
请听第8段材料，回答第l2、l3题。
12. Why can't the man wait to see the dentist?
A. He doesn't have an appointment.
B. He has a terrible toothache.
C. He doesn't have any medicine.
13. What day is today?
A. Saturday. B. Sunday. C. Monday.
请听第9段材料，回答第14至17题。
14. When does this conversation take place?
A. On Wednesday. B. On Thursday. C. On Friday.
15. What is the name of the play that the two speakers are going to watch?
A. Twelfth Night.
B. The Police and The Thief.
C. The Bicycle Thief.
16: Where will the play be put on?
A. In the classroom.
B. At the Shakespeare Theatre.
C. At the police station.
17. What's the play about?
A. The police. B. The thief. C. The police and the thief.
请听第10段材料，回答第18至20题。
Why couldn't I meet Mr.
Did I try to call Mr.
What did I find when returning to the hotel? I found a .
第二部分：单项选择(每题一分。共15分)
21. Lang Ping, who is said to have started her
coaching career in,
A. played B. have played C. was playing D. had played
22. ---Have you got any plans for the coming birthday?
--- Yes. , I'm going to try bungee jumping.
A. If not B. If busy C. If anything D. If possible
23. It's impossible for all the people to get jobs because of them are not fit for them.
A. none B. all C. not all D. every one
24. it is reported that some mainland visitors to Hong Kong Disneyland didn't the park rules and behaved improperly.
A. keep to B. get across C. take up D. make up
25. ---Shall we go skating tonight?
---Sorry. This is not the right . I'm too tired to walk.
A. situation B. chance C. moment D. place
26. --- My boy's name is Jonathan. Shall I spell it for you?
--- .
A. If you don't mind B. Not at all C. It doesn't matter D. take it easy
27. branch fell from the tree and hit her on head in the thunderstorm.
A. A; the B. The; the C. A; / D. The; /
28. Why didn't you tell me there was no meeting today? I all the way here through the heavy snow.
A. needn't have driven B. can't have driven
C. mustn't have driven D. shouldn't have driven
29. Joseph is a careful driver, but he drives of my friends.
A. more carefully B. the most carefully C. less carefully D. the least carefully
30. Scientists photographed for the first time ever wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.
A. which B. what C. that D. when
31. Her shoes her dress: they look very well together.
A. suit B. fit C. compare D. match
32. ---Come on, please give me some ideas about the project.
---Sorry. With so much work my mind, I almost break down.
A. filled B. filling C. to fill D. being filled
33. Three minutes earlier, they could have escaped such a disaster.
A. so B. but C. and D. that
34. They two air-plane
tickets to
A. had received B. received C. have received D. receive
35. ---Are you ready for
---Yes. I want my kids to experience that they are young.
A. while B. until C. if D. before
第三部分 完形填空(共20小题；每小题l.5分，满分30分)
阅读下面短文，从短文后所给各题的四个选项(A、 B、C、D)中，选出可以填入空白处的最佳选项。
A Box of Cookies
A small boy at summer camp received a large package of cookies in the mail from his mother. He ate a few, and then 36 the remainder under his bed. The next day, he found the box was 37 .
That afternoon a camp leader, who had been 38 of the theft(偷窃), saw another boy sitting behind a tree eating the stolen cookies. " 39 young man," he said to himself, "must be 40 not to steal."
He returned to the group and 41 the boy whose cookies had been stolen. "Billy," he said, "I 42 who stole your cookies. Will you help me give him a lesson?"
"Well, yes--but aren't you going to 43 him?" asked the boy.
"No, that 44 only make him angry and hate you," the leader 45 "I want you to call your mother and ask her to 46 you another box of cookies."
A few days later the boy received another box of cookies.
"Now," said the leader, "the boy who stole your cookies is down by the lake, Go and share your 47 with him."
"But, he's the thief." said the 48 boy." I know. But 49 it--see what happens." Half an hour later the camp leader saw the two come 50 the hill, arm in arm. The boy who had stolen the cookies was 51 trying to get the other to accept his jackknife in payment 52 the stolen cookies, and Billy was just as earnestly(真诚的) 53 the gift from his new friend, 54 that a few old cookies weren't that 55 anyway.
36. A. took B. placed C. loaded D. lay
37. A. broken B. opened C. touched D. gone
38. A. told B. asked C. heard D. warned
39. A. Any B. Either C. That D. Every
40. A. encouraged B. ordered C. allowed D. taught
41. A. sought out B. turned out C. gave out D. set out
42. A. understand B. know C. recognize D. realize
43. A. beat B. find C. punish D. catch
44. A. must B. shall C. need D. would
45. A. explained B. argued C. insisted D. promised
46. A. leave B. send C. take D. find
47. A. ideas B. cookies C. lessons D. toys
48. A. interested B. worried C. stolen D. puzzled
49. A. face B. make C. try D. show
50. A. up B. back C. down D. through
51. A. carefully B. interestedly C. sincerely D. quickly
52. A. to B. for C. of D. with
53. A. returning B. checking C. refusing D. thanking
54. A. expecting B. hoping C. saying D. meaning
55. A. much B. bad C. expensive D. important
第四部分：阅读理解(每题2分，共40分)
A
Margaret, married with two small children, has been working for the last seven years as a night cleaner, cleaning offices in a big building.
She trained as a nurse, but had to give it up when her elder child became seriously ill. "I would have liked to go back to it, but the shifts (工作班次) are all wrong for me, as I have to be home to get the children up and off to school."
So she works as a cleaner instead, from 9 p.m. till
The hours she's chosen to work mean that she sees plenty of the children, but very little of her husband. However, she doesn't think that puts any pressure on their relationship.
Her work isn't physically very hard, but it's not exactly pleasant, either. "I do get angry with people who leave their offices like a place for raising pigs. If they realized people like me have to do it, perhaps they'd be a bit more careful."
The fact that she's working all night doesn't worry Margaret at all. Unlike some dark buildings at night, the building where she works is fully lit, and the women work in groups of three. "Since I've got to be here, I try to enjoy myself- and I usually do, because of the other girls. We all have a good laugh, so the time never drags."
Another challenge Margaret has to face is fine reaction of other people when she tells them what she does for a living. "They think you're a cleaner because you don't knowhow to read and write," said Margaret, "I used to think what my parents would say if they knew what I'd been doing, but I don't think that way any more. I don't dislike the work though I can't say I'm mad about it."
50. Margaret quit her job as a nurse because________.
A. she wanted to earn more money to support her family
B. she had suffered a lot of mental pressure
C. she needed the right time to look after her children
D. she felt tired of taking care of patients
57. Margaret gets angry with people, who work in the office because
A. they never clean their offices
B. they look down upon cleaners
C. they never do their work carefully
D. they always make a mess in their offices
58. When at work, Margaret feels________.
A. light-hearted because of her fellow workers
B. happy because the building is fully lit
C. tired because of the heavy, workload
D. bored because time passes slowly
59. The underlined part in the last paragraph implies that Margaret's parents would________.
A. help care for her children B. regret what they had said
C. show sympathy for her D. feel disappointed in her
B
Federal regulators Wednesday approved a plan to create a nationwide emergence alert (警报) system using text messages delivered to cell phones.
Text messages have exploded in popularity in recent years, particularly among young people. The wireless industry's trade association, CTIA, estimates (估计) more than 48billion text messages are sent each month.
The plan comes from the Warning Alert and Response Network Act, a 2006 federal law that requires improvements to the nation's emergency alert system. The act tasked the Federal Communications Commission (FCC) with coming up with new ways to alert the public about emergencies.
"The, ability to deliver accurate and timely warnings and alerts through cell phone sand other mobile services is an important next step in our efforts to help ensure that the American public has the information they need to take action to protect themselves and their families before, and during, disasters and other emergencies," FCC Chairman Kevin Martin said following approval of the plan.
Participation in the alert system by carriers -telecommunications companies is voluntary, but it has received solid support from the wireless industry.
The program would be optional for cell phone users. They also may not be charged for receiving alerts.
There would be three different types of messages, according to the rules.
The first would be a national alert from the president, likely involving a terrorist attack or natural disaster. The second would involve "approaching threats," which could include natural disasters like hurricanes or storms or even university shootings. The third would be reserved for child abduction (绑架) emergencies, or so-called Amber Alerts.
The service could be in place by 2010.
60. What is the purpose of the approved plan?
A. To warn people of emergencies via messages.
B. To popularize the use of cell phones.
C. To estimate the monthly number of messages.
D. To promote the wireless industry.
61. The improvement to the present system is in the charge of________.
A. CTIA B the Warning Alert and Response Network
C. FCC D. federal regulators
62. An alert message will NOT be sent if________.
A. a child loses his way
B. a university shooting happens
C. a natural disaster happens
D. a terrorist attack occurs
63. Which of the following would be the best title for the text?
A. Cell Phone Alerts Protecting Students
B. Cell Phone Alerts by Wireless Industry
C. Cell Phone Alerts of National Disasters
D. Cell Phone Alerts Coming Soon
C
Dear Alice,
My name is Lisa. I have social anxiety, disorder and was wondering how it would be possible to see someone for help without my parents knowing about it. I know that they'd be anything but supportive. They would think I'm absolutely out of my mind. The truth is, I've put off dealing with it, acting as if it'll just go away or that I'll outgrow it. But in reality, the older I'm getting, the worse I'm getting. I avoid as many social situations as I can. I completely panic when meeting new people, I only stay in classes that don't require any talking on my part. It seems the only place I'm actually happy is at home or with people that I've known all my life. Hope you can help!
Dear Lisa,
About 5 million Americans have some form of social anxiety disorder, also known as social phobia. While everyone experiences nervousness or fear in social situations to a certain extent, those with social anxiety disorder are weakened by their fear. They may have a constant, intense, and lasting fear of being watched and judged by others, or be terribly afraid of being embarrassed or laughed at by ways in which they behave. As you have described, this fear can prevent people with social anxiety disorder from doing everyday activities, such as going to school or work, and can become so much of a focus that they limit their socializing.
It's understandable that you are worried about how your parents might react to knowing what's been going on for you. Many people think that their families will blame them for how they're feeling or belittle their concerns. Being honest with your parents, however, might help you to feel more at ease; it's possible that they've noticed your behavior and wondered about it, or even struggled with similar feelings themselves. There's even some evidence that anxiety disorders may be genetic or run in families ―perhaps due to environmental factors and patterns expressed through interpersonal interactions.
64. The problem of Lisa is that________.
A. She is not getting along well with her parents.
B. She becomes nervous meeting people
C. She always puts off dealing with her problems.
D. She fears social occasions
65. According to Lisa, her parents________.
A. has never supported her
B. are eager to know what's going on for her
C. are perhaps struggling with similar feelings
D. may criticize her for her trouble
66. In her letter,
A. the possible causes of Lisa's problem
B. the effects of social phobia
C. people's attitudes towards nervousness
D. everyone's experience of social anxiety disorder
67. The underlined word "belittle" probably means________.
A. express B. hide C. ignore D. worry
D
We can see how the product life cycle works by looking at the introduction of instant(速溶) coffee. When it was introduced, most people did not like it as well as "regular" coffee, and it took several years to gain general acceptance (introduction stage).At one point, though, instant coffee grew rapidly in popularity, and many brands were introduced (stage of rapid growth). After a while, people became attached to one brand and sales leveled off (stage of maturity). Sales went into a slight decrease when freeze-dried coffees were introduced (stage of decline).
The importance of the product life cycle to marketers is this: Different stages in the product life cycle call for different strategies. The goal is to extend product life so that sales and profits do not drop. One strategy is called market modification. It means that marketing managers look for new users and market sections. Did you know, for example, that the backpacks that so many students carr3 today were originally designed for the soldiers？
Market modification also means searching for increased usage among present customers or going for a different market, such as senior citizens. A marketer may re-position the product to appeal to new market sections.
Another product extension strategy is called product modification. It involves changing product quality, features, or style to attract new users or more usage from present users. American auto manufacturers are using quality improvement as one way to regain world markets. Note, also, how auto manufacturers once changed styles eagerly from year to year to keep demand from falling.
68. The first paragraph tells us that a new product is ________.
A. not easily accepted by the public
B. often of poorer quality compared with old ones
C. often more expensive than old ones
D. usually introduced to satisfy different tastes
69. Marketers need to know which of the four stages a product is in so as to________.
A. promote its production
B. work out marketing plans
C. speed up its life cycle
D. increase its popularity
70. The author mentions the example of "backpacks" (Para.2) to show the importance of________.
A. pleasing the young as well as the old
B. increasing usage among students
C. exploring new market sections
D. finding creative product designers
71. In order to attract more consumers,
A. modernizing product style
B. increasing product features
C. developing products of better quality
D. re-positioning their product in the market
E
George, when your big brother and your little dog and I walked you up to school today, you had no idea how I was feeling.
You were so excited. You had packed and unpacked your pencils and safety scissors in your backpack a dozen times. I am really going to miss those lazy mornings when we waved your brother and sister off to school.
Because you are my youngest, I had learned a few things by the time you came along. I found out that the seemingly endless days of babyhood are gone like lightning. I blinked(眨眼), and your older siblings(兄弟姐妹) were setting off for school as eagerly as you did this morning, I was one of the lucky ones; I could choose whether to work or not. By the time it was your turn. the shining prizes of career advancement and a double income had lost their brightness. A splash(溅水) in the pool with you in your bright red boots or "just one more" rereading of your favorite book, Frog and Toad Are Friends, meant more. You didn't go to preschool and I hope that doesn't hold you back. You learned numbers by helping me count the soda cans we returned to the store.
I have to admit that in my mind's eye, an image of myself while you're in school has developed, I see myself updating all the photo albums and starting that novel I always wanted to write. As the summer wound down and more frequent quarrels erupted between you and your siblings, I was looking forward to today. And then this morning, I walked you up the steep hill to your classroom and you gave me one of your characteristically fierce, too-tight hugs. This time you were ready to let go before I was.
Maybe someday you will deliver a kindergartner to the first day of school. When you turn at the door to wave good-bye, he or she will be too deep in conversation with a new friend to notice. Even as you smile, you'll feel something warm on your cheek...
72.What does the underlined sentence mean in the third paragraph?
A. When you reach the school age
B. When you decide whether to work or not
C. When you were born
D. When you have your own, family
73.Which sentence from the passage best describes how the writer felt on that morning?
A. An image of myself while you're in school has developed.
B. I was looking forward to today.
C. I was one of the lucky ones.
D. This time you were ready to let go before I was.
74.Which statement is NOT true about George's family according to the letter?
A. George's parents gave birth to three children
B. The Georges is a double income family
C. They recycle soda cans
D. The children had more arguments during the summer
75.The passage tries to show us ________.
A. how excited a child will be on his first day to school
B. how deeply a mother loves her child
C. how many efforts a mother has made to raise a child
D. how a mother plans her future life after her children go to school
第二部分(非选择题，共35分)
重庆市万州区2008-2009学年高三第一次诊断性
理科综合能力测试
注意事项：
1，本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。满分300分，考试时间为150分钟。
2．答第工卷前，考生务必将自己的姓名、考号、考试科目填写在答题卡上。
3．第Ⅰ卷每小题选出答案后，请将答案填入答题卡上对应题目的答案框内，不能答在试卷上。
4．第二部分各题的答案，必须答在答题卡规定的地方。要求卷面整洁，字迹工整。
相对原子质量：H―
第Ⅰ卷(选择题，共126分)
重庆市万州区2008-2009学年高三第一次诊断性
文科综合能力测试
本试卷分第1卷(选择题)和第Ⅱ卷(非选择题)两部分，共8页。满分300分。考试时间150分钟。
注意事项：
1．答第Ⅰ卷前，考生务必将自己的姓名、考号等写在答题卡上。
2．选择题选出答案后，请将答案的英文字母填入答题卡上对应题号下的答案框内，不能答在试题卷上。
3．第Ⅱ卷各题的答案，必须答在答题卡规定的地方。要求卷面整洁，字迹工整。
4．考试结束，只交答题卡。
第Ⅰ卷(选择题，共140分)
重庆市万州区2008-2009学年高三第一次诊断性
数 学(理科)
本试卷分第I卷(选择题)和第II卷(非选择题)两部分.全卷共三个大题，22个小题，满分150分，考试时间为120分钟.
注意事项：
1．答卷前，考生务必将自己的学校、班级、姓名、考号填写在答题卷上.
2．第I卷每小题选出答案后，用笔填写在答题卷上“第I卷答题栏”对应题目的答案栏内.不能答在试题纸上.
3．第II卷各题一定要做在答题卷限定的区域内.
参考公式：
如果事件A、B互斥，那么P(A＋B)＝P(A)＋P(B)
如果事件A、B相互独立，那么P(A?B)＝P(A)?P(B)
如果事件A在一次试验中发生的概率是P，那么n次独立重复试验中恰好发生k次的概率
第I卷（选择题，共50分）
重庆市万州区2008-2009学年高三第一次诊断性
数 学（文科）
本试卷分第I卷(选择题)和第II卷(非选择题)两部分.全卷共三个大题，22个小题，满分150分，考试时间为120分钟.
注意事项：
1．答卷前，考生务必将自己的学校、班级、姓名、考号填写在答题卷上.
2．第I卷每小题选出答案后，用笔填写在答题卷上“第I卷答题栏”对应题目的答案栏内.不能答在试题纸上.
3．第II卷各题一定要做在答题卷限定的区域内.
参考公式：
如果事件A、B互斥，那么P(A＋B)＝P(A)＋P(B)
如果事件A、B相互独立，那么P(A?B)＝P(A)?P(B)
如果事件A在一次试验中发生的概率是P，那么n次独立重复试验中恰好发生k次的概率
第I卷（选择题，共60分）
北京市第四中学2009届高三上学期期中考试
理科综合能力测试题（化学部分）
6．恒温、恒压下，1molA和nmolB在一个容积可变的容器中发生如下反应：A(g)+2B(g) 
A．物质A、B的转化率之比为1：2
B．起始时刻和达平衡后容器中混合气体密度相等
C．当V正(A)=2V逆(C)时，可断定反应达到平衡状态
D．若起始时放入3molA和3nmolB，则达平衡时生成3amolC
7．下列各元素中，一定属于主族元素的是
A．X元素能形成+7价的含氧酸及其盐
B．Y元素原子最外层电子数为2
C．Z元素的阴离子与同一周期稀有气体元素的原子电子层结构相同
D．R元素的最高价氧化物是酸性氧化物
8．设NA为阿伏加德罗常数的值，下列有关叙述不正确的是
A．在标准状况下，V升 SO3含氧原子个数是3V/22.4
B．常温常压下，1mol重水 所含电子总数为10NA
C．金刚石中，碳原子数与碳碳共价键数之比为1：2
D．常温常压下，NA个甲烷分子体积大于
9．下列离子方程式中，不正确的是
A．FeCl3溶液中加入铁粉：2Fe3++Fe=3Fe2+
B．次氯酸钙溶液中通入适量的SO2：Ca2++2ClO―+SO2+H2O=CaSO3↓+2HClO
C．氨气通入醋酸溶液中：CH3COOH+NH3===CH3COO―+NH4+
D．在FeBr2溶液中通入足量的Cl2：2Fe2++4Br―+3Cl2=2Fe3++2Br2+6Cl―
10．下列有关物质的用途正确的是
①碘酒可作为医用消毒剂 ②明矾可作为净水剂 ③Cl2可用于制备漂白粉
④纯净的碳酸钡可作为医用“钡餐” ⑤二氧化硫可作为漂白剂
A．①②③ B．①②③④ C．①②③⑤ D．全部
11．常温下，向0.1mol下列物质①过氧化钠②硫酸钡③硫化钠④偏铝酸钠⑤氯化铝中分别加入
A．⑤①③④② B．⑤②①③④
C．⑤①④③② D．②⑤①③④
12．下列说法中正确的是
A．分子内脱去一个小分子的反应一定是消去反应
B．可用浓溴水除去苯中混有的苯酚
C．胶体是一种较稳定的分散系，可用渗析法从胶体中分离出离子或小分子
D．向卤代烃水解后的溶液中直接加入硝酸银溶液，可以确定卤代烃中含有的卤元素
13．
 |
一定条件下，下列药物的主要成分都能发生Ⅰ取代反应 Ⅱ加成反应 Ⅲ水解反应 Ⅳ中和反应中的四种反应的是
A．①④ B．②④ C．①③ D．③④w.w.w.k.s.5.u.c.o.m
26．（16分）已知A、B、C、D均为短周期元素，它们的原子序数依次递增。A是最外层为一个电子的非金属，C原子的最外层电子数是次外层的3倍；C和D可形成两种固体化合物，其中一种为淡黄色固体；B和C可形成多种气态化合物。由A、B、C三种元素可形成离子晶体，该晶体中各元素原子的物质的量之比为A∶B∶C = 4∶2∶3。请回答下列问题：
⑴写出C和D形成的淡黄色固体化合物的电子式 。
⑵元素原子的物质的量之比为A∶B∶C = 4∶2∶3的晶体名称为 ，其水溶液显 性，其反应的离子方程式为 。
⑶请写出与A
⑷写出由B、C元素组成元素原子质量比为B∶C=7∶12的化合物的化学式 。
27．（15分）现有pH=2的醋酸溶液甲和pH=2的盐酸乙，请根据下列操作回答问题：
⑴取10 mL的甲溶液，加入等体积的水，醋酸的电离平衡 移动（填“向左”、“向右”或“不”）；另取10 mL的甲溶液，加入少量无水醋酸钠固体（假设加入固体前后，溶液体积保持不变），待固体溶解后，溶液中c(H+)/ c(CH3COOH)的比值将 （填“增大”、“减小”或“无法确定”）。
⑵相同条件下，取等体积的甲、乙两溶液，各稀释100倍。稀释后的溶液，其pH大小关系为：pH（甲） pH（乙）（填“大于”、“小于”或“等于”）。
⑶各取25mL的甲、乙两溶液，分别用等浓度的NaOH稀溶液中和至pH=7，则消耗的NaOH溶液的体积大小关系为：V(甲) V(乙) （填“大于”、“小于”或“等于”）。
⑷取25 mL的甲溶液，加入等体积pH=12的NaOH溶液，反应后溶液中c(Na+)、 c(CH3COO－)的大小关系为：c(Na+) c(CH3COO－)（填“大于”、“小于”或“等于” ）。
28．（18分）化合物A、B均是分子式为C8H8O3的无色液体，均难溶于水。从A、B开始，可发生图示的一系列反应(反应中的无机物已全部略去)，E的苯环上的一元硝基化合物只有两种，K可发生银镜反应。
⑴写出A和K的结构简式：A K
K与G中相同的官能团的名称是：
⑵上图a―i的反应中，属于酯化反应的有 。
⑶写出反应e的化学方程式： 。
写出反应c的化学方程式： 。
⑷已知充分燃烧
29．（11分）Ⅰ．t℃时，甲、乙两个烧杯中各盛有
⑴t℃时，KCl的溶解度为 。
⑵乙烧杯中剩余KCl溶液的物质的量浓度 甲烧杯中剩余KCl溶液的物质的量浓度（大于、小于、等于）
Ⅱ．在一定温度下，2SO2(g)+O2(g)
2SO3(g)；△H＝一196.6 kJ／mol。向一个容积不变的容器中，充入2
mol SO2和1
mol O2，使之充分反应，热量变化与△H相比较 （大于、等于、小于），原因是：
。