北京市海淀區高三年級第一學期期中練習
化 學 試 題
本試卷分為第Ⅰ卷（選擇題）和第Ⅱ卷（非選擇題）兩部分，共100分。考試時間120分鐘。答題時請將第Ⅰ卷每小題的正確答案選出后，填在第4頁答卷表格的相應空格中，若僅答在第Ⅰ卷上則不給分。請將第Ⅱ卷各題的答案直接答在試卷的相應位置上。
可能用到的相對原子質量：
H
第Ⅰ卷（選擇題 共45分）
本卷共15道小題，每小題3分，共45分。每小題只有一個選項符合題意。
1．化學與生活、社會密切相關。下列說法不正確的是 （ ）
A．我國規定商家不得無償提供塑料袋，目的是減少“白色污染”
B．乙醇是一種易燃燒污染小的可再生能源，但只能在實驗室內作燃料
C．化石燃料不可再生，使用太陽能代替化石燃料，有利于節約資源、保護環境
D．積極開發廢電池的綜合利用技術，防止其中的重金屬鹽對土壤和水源造成污染
2．下列說法正確的是 （ ）
A．電解質溶液導電屬于物理變化
B．由一種元素組成的物質一定是純凈物
C．金屬氧化物不一定是堿性氧化物
D．水的凈化、消毒都屬于氧化還原反應
3．下列實驗能達到預期目的的是 （ ）
A．通過電泳實驗證明膠體帶電
B．通常利用丁達爾效應區別溶液與膠體
C．滲析實驗說明膠體粒子能透過半透膜
D．向煮沸的NaOH溶液中滴加FeCl3溶液可制備Fe(OH)3膠體
4．正確掌握好化學用語是學好化學的基礎，下列有關表述正確的是 （ ）
A．次氯酸的電子式：
B．質量數為16的氧原子：
C．乙烯的結構簡式：
D．碳酸氫根離子的電離方程式： HCO3- + H2O
H3O++ CO32-－
5．下列物質的分類正確的是 （ ）
混合物
非電解質
堿
酸式鹽
A
漂白粉
Cl2
氨水
NaHCO3
B
福爾馬林
苯
Cu2(OH)2CO3
明礬
C
膽礬
SO2
純堿
NH4Cl
D
食醋
C2H5OH
苛性鉀
NaHSO4
6．茉莉醛具有濃郁的茉莉花香，其結構簡式為：
關于茉莉醛的下列表述不正確的是 （ ）
A．難溶于水 B．屬于芳香烴
C．在一定條件下能發生氧化反應 D．在一定條件下能生成高分子化合物
7．下列排列順序正確的是 （ ）
①酸性：H3PO4 > H2SO4 > HClO4
②熱穩定性：H2O > HF > H2S
③原子半徑：Na>Mg>O
④還原性：F－ > Cl－ > S2－
⑤結合H+的能力：OH－＞CH3COO－＞Cl－
A．③⑤ B．②③ C．①③④ D．②④⑤
8．有關硫酸銅晶體里結晶水含量測定的實驗，下列表述正確的是 （ ）
A．將坩堝直接放在三角架上進行加熱
B．坩堝在加熱前未完全干燥，可使測定的結果偏低
C．加熱溫度過高，使一部分硫酸銅分解，可使測定結果偏高
D．實驗步驟的順序為：稱量、研磨、加熱、冷卻、稱量、再加熱、冷卻、稱量
9．用NA代表阿伏加德羅常數的數值，下列表述正確的是 （ ）
A．等物質的量的OH－與羥基(－OH)所含電子數相等
B．
C．
D．常溫常壓下，
10．對于密閉容器中的可逆反應：mX (g) + nY(s) 
pZ (g)；ΔH<0，達化學平衡后，改變條件，下列表述不正確的是 （ ）
A．增大壓強，化學平衡不一定發生移動
B．通入氦氣，化學平衡不一定發生移動
C．增加X或Y的物質的量，化學平衡一定發生移動
D．其它條件不變，升高溫度，化學平衡一定發生移動
11．有關下列表述 （ ）
①16O2與18O2互為同位素
②C2H4與C6H12互為同系物
③淀粉與纖維素互為同分異構體
④白磷與紅磷是同素異形體，它們之間的轉化是物理變化
⑤碳與硅是同主族元素，故CO2與SiO2結構相似，性質相似
⑥PCl3和BCl3分子中所有原子的最外層都達到8電子穩定結構
A．都不正確 B．只有①③⑤正確 C．只有②④⑤正確 D．只有①②⑥正確
12．下列離子方程式書寫正確的是 （ ）
A．硫化鈉水解：S2－＋2H2O 
H2S↑＋2OH－
B．碳酸鈉溶于醋酸溶液中：CO32－ ＋ 2 H＋＝ H2O ＋ CO2↑
C．次氯酸鈣溶液中通入過量二氧化碳：Ca2+ + 2ClO－+H2O+CO2 ＝CaCO3↓+2HClO
D．過量的硫酸氫鈉與氫氧化鋇溶液反應：Ba2＋＋2OH－＋2H＋＋SO42－＝BaSO4↓＋2H2O
13．下列表述正確的是 （ ）
A．NaHCO3溶液中：c(H+) + c(H2CO3) ＝ c(OH－)
B．中和等體積、等pH相同的鹽酸和CH3COOH溶液所消耗的NaOH物質的量相同
C．pH＝2的HA溶液與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．在水電離出的H＋濃度為1×10－12 mol/L的溶液中，K+、Mg2+、NO3－、I－一定能大量共存
14．下列說法正確的是 （ ）
A．將氯化鋁和硫酸鋁溶液蒸干灼燒后均得到氧化鋁
B．向足量飽和石灰水中加入
C．由堿金屬元素形成的單質熔點隨原子序數的遞增逐漸降低
D．向稀醋酸中加入醋酸鈉固體，溶液pH升高的主要原因是醋酸鈉水解呈堿性
15．X、Y、Z三種氣體，取X和Y按2∶1的物質的量之比混合，放入固定體積的密閉容器中發生如下反應：X + 2Y2Z ，達到平衡后， X的轉化率不可能為 （ ）
A．25% B．20% C．15% D．10%
第Ⅱ卷（非選擇題 共55分）
16．（共4分）
某實驗小組為探究ClO－、I2、SO42－在酸性條件下的氧化性強弱，設計實驗如下：
實驗①：在淀粉碘化鉀溶液中加入少量次氯酸鈉溶液，并加入少量的稀硫酸，溶液立即變藍；
實驗②：向實驗①的溶液中加入4 mL 0.5 mol/L的亞硫酸鈉溶液，藍色恰好完全褪去。
（1）寫出實驗①中發生反應的離子方程式 。
（2）實驗②中化學反應轉移電子的物質的量是 。
（3）以上實驗說明，在酸性條件下ClO－、I2、SO42－的氧化性由弱到強的順序是_________________。
17．（共10分）
元素周期表是學習物質結構和性質的重要工具，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分別代表某一化學元素。請用所給元素回答下列問題。
A
D
E
G
Q
M
R
T
（1）某元素原子的核外電子層數是最外層電子數的3倍，該元素的原子結構示意圖為 。
（2）某些元素的原子可形成與Ar具有相同電子層結構的簡單離子，這些離子的半徑由大到小的順序是（填離子符號）
。
（3）M、D兩種元素形成的化合物含有的化學鍵類型是 ，其分子是（填“極性”或“非極性”） 分子；
A分別與D、E、R形成的分子中，分子間存在氫鍵的是（填分子式） 。
A與D形成分子的空間結構可能是（填序號）
。
a
b
c
d
圖1
（4）從所給元素中組成合適的反應物，用化學方程式
表明元素M、R的非金屬性強弱：
。
（5）第三周期主族元素單質熔點高低的順序如圖2所
示，“1”所代表物質的化學式是 ，
“7”所對應的元素形成最高價氧化物的晶體類型
是 。
圖2
18．(共6分)現有濃度均為0.1 mol/L的下列溶液：①硫酸、
②醋酸、③氫氧化鈉、④氯化銨、⑤醋酸銨、⑥硫酸銨、
⑦硫酸氫銨，⑧氨水，請回答下列問題：
（1）①、②、③、④四種溶液中由水電離出的H+濃度由大到小的順序是（填序號）
。
（2）④、⑤、⑥、⑦、⑧五種溶液中NH4+濃度由大到小的順序是（填序號） 。
（3）將③和④等體積混合后，混合液中各離子濃度由大到小的順序是 。
（4）已知t℃，KW＝1×10－13，則t℃（填“>”或“<”或“＝”）
19．（共5分）
在密閉容器中投入一定量的A和B發生反應：m A(g)+n B(g) EMBED ChemWindow.Document p C(g)+q D(g)。
（1）若開始時加入A物質m mol，欲使A與B的轉化率相等，則加入B物質_______mol 。
（2）相同的壓強下，充入一定量的A、B后，在不同溫度下C的百分
含量與時間的關系如圖3所示。則T1(填“>”、“<”或“=”)________T2，
該反應的正反應的△H(填“>”、“<”或“=”)_________0。
（3）一定條件下，從正反應開始達到化學平衡過程中，混合氣體的平均
相對分子質量隨時間的變化如圖4所示，測得達到平衡時A、B、C、
D的物質的量均為1 mol。
①若在恒溫恒容的條件下，向該平衡體系中再通入A、B、C、D
1 mol，則體系中氣體的平均相對分子質量（填“增大”、“減小”、
“不變”或“無法確定”） 。
②若恒溫恒壓的條件下，向原平衡體系中再通入A、B、C、D各1 mol，
則體系中氣體的密度（填“增大”、“減小”、“不變”或“無法確定”） 。
20．（共8分）A和R在一定條件下可合成芳香族化合物E，已知A可以在一定條件下轉化為G，且G在標準狀況下密度為
圖5
（1）A中所含官能團的名稱為 ；①的反應類型為 。
（2）②的化學反應方程式為 。
M與新制氫氧化銅懸濁液反應的化學方程式 。
（3）與E具有相同官能團，且苯環上只有一個取代基的同分異構體還有5種，它們是：
、 
、 
_________ _、 。
21．（共6分）某實驗小組用0.50 mol/L NaOH溶液和0.50 mol/L硫酸溶液進行中和熱的測定。
Ⅰ．配制0.50 mol/L NaOH溶液
（1）若實驗中大約要使用245 mL NaOH溶液，至少需要稱量NaOH固體 g。
（2）從圖6中選擇稱量NaOH固體所需要的儀器是（填字母）： 。
圖6
Ⅱ．測定中和熱的實驗裝置如圖7所示。
（1）寫出稀硫酸和稀氫氧化鈉溶液反應表示中和熱的熱化學
方程式（中和熱數值為57.3 kJ/mol）：
。
（2）取50 mL NaOH溶液和30 mL硫酸溶液進行實驗，實驗
數據如下表。
①請填寫下表中的空白： 圖7
溫度
實驗次數
起始溫度t1/℃
終止溫度
t2/℃
溫度差平均值
（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近似認為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熱容c=4.18 J/(g?℃)。則中和熱△H= （取小數點后一位）。
③上述實驗數值結果與57.3 kJ/mol有偏差，產生偏差的原因可能是（填字母） 。
a．實驗裝置保溫、隔熱效果差
b．量取NaOH溶液的體積時仰視讀數
c．分多次把NaOH溶液倒入盛有硫酸的小燒杯中
d．用溫度計測定NaOH溶液起始溫度后直接測定H2SO4溶液的溫度
22．（共9分）某課外活動小組同學用右圖裝置進行實驗，試回答下列問題。
（1）若開始時開關K與a連接，則B極的電極反應式為 。
（2）若開始時開關K與b連接，則B極的電極反應式為 ， 總反應的離子方程式為 。
有關上述實驗，下列說法正確的是（填序號） 。
①溶液中Na+向A極移動
②從A極處逸出的氣體能使濕潤KI淀粉試紙變藍
③反應一段時間后加適量鹽酸可恢復到電解前電解質的濃度
④若標準狀況下B極產生
（3）該小組同學模擬工業上用離子交換膜法制燒堿的方法，那么可以設想用如圖9裝置電解硫酸鉀溶液來制取氫氣、氧氣、硫酸和氫氧化鉀。
圖8 圖9
①該電解槽的陽極反應式為 。此時通過陰離子交換膜的離子數 （填“大于”或“小于”或“等于”）一通過陽離子交換膜的離子數。
②制得的氫氧化鉀溶液從出口（填寫“A”、“B”、“C”、“D”） 導出。
③通電開始后，陰極附近溶液pH會增大，請簡述原因 。
④若將制得的氫氣、氧氣和氫氧化鉀溶液組合為氫氧燃料電池，則電池正極的電極反應式為 。
23．（共7分）銅合金是人類使用最早的金屬材料，銅在化合物中的常見化合價有+l 、+2。已知Cu2O與稀硫酸反應，溶液呈藍色。現向Cu、Cu2O和CuO組成的混合物中，加入
（1）寫出Cu2O跟稀硝酸反應的離子方程式 。
（2）若將上述混合物用足量的H2加熱還原，所得到固體的質量為 。
（3）若混合物中含0.1 mol Cu，將該混合物與稀硫酸充分反應，至少消耗H2SO4的物質的量為 。
（4）若混合物中Cu的物質的量為n mol，則n的取值范圍為 。
重慶市萬州區2008-2009學年高三第一次診斷性
語 文
語文試題分為兩部分，滿分150分，考試時間150分鐘。
注意事項：
1．答題前，務必將自己的姓名、準考證號(或學號)填寫在答題卷規定的位置上。‘。
2．所有題目必須在答題卷上作答，在試題卷上答題無效。
3．考試結束后，只上交答題卷(高考除外)。
第一部分 選擇題
重慶市萬州區2008-2009學年高三第一次診斷性
英語試題
本試卷分第I卷和第II卷兩部分。滿分150分。考試用時120分鐘。考試結束后。將本試卷和答題卡一并交回。
注意事項：
1．答卷前，考生務必用0.5毫米黑色簽字筆將自己的姓名、座號、準考證號填寫在答題卡和試題卷規定的位置上。
2．第I卷每小題選出答案后，用2B鉛筆把答題卡上對應題目的答案標號涂黑；如需改
動，用橡皮擦干凈后，再選涂其他答案標號。答案不能答在試題卷上。
3．第II卷必須用0.5毫米黑色簽字筆作答，先劃掉原來的答案，然后再寫上新的答案；
不準使用涂改液、膠帶紙、修正帶。不按以上要求作答的答案無效。
第Ⅰ卷（三部分，共115分）
第一部分：聽力理解(共三節，滿分30分)
第一節(共5小題;每小題1.5分，滿分7.5分)
聽下面5段對話。每段對話后有一個小題，從題中所給的A、B、C三個選項中選出最佳
選項，并標在試卷的相應位置。聽完每段對話后，你都有l0秒鐘的時間來回答有關小題
和閱讀下一小題。每段對話僅讀一遍。
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.
第二節(共15小題；每小題l.5分，滿分22.5分)
請聽下面5段對話或獨白，選出最佳選項。
請聽第6段材料，回答第6至8題。
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.
請聽第7段材料，回答第9至11題。
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.
請聽第8段材料，回答第l2、l3題。
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.
請聽第9段材料，回答第14至17題。
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.
請聽第10段材料，回答第18至20題。
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：單項選擇(每題一分。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小題；每小題l.5分，滿分30分)
閱讀下面短文，從短文后所給各題的四個選項(A、 B、C、D)中，選出可以填入空白處的最佳選項。
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(偷竊), 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(真誠的) 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：閱讀理解(每題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 (警報) 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 (估計) 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 (綁架) 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(濺水) 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(非選擇題，共35分)
重慶市萬州區2008-2009學年高三第一次診斷性
理科綜合能力測試
注意事項：
1，本試卷分第Ⅰ卷(選擇題)和第Ⅱ卷(非選擇題)兩部分。滿分300分，考試時間為150分鐘。
2．答第工卷前，考生務必將自己的姓名、考號、考試科目填寫在答題卡上。
3．第Ⅰ卷每小題選出答案后，請將答案填入答題卡上對應題目的答案框內，不能答在試卷上。
4．第二部分各題的答案，必須答在答題卡規定的地方。要求卷面整潔，字跡工整。
相對原子質量：H―
第Ⅰ卷(選擇題，共126分)
重慶市萬州區2008-2009學年高三第一次診斷性
文科綜合能力測試
本試卷分第1卷(選擇題)和第Ⅱ卷(非選擇題)兩部分，共8頁。滿分300分。考試時間150分鐘。
注意事項：
1．答第Ⅰ卷前，考生務必將自己的姓名、考號等寫在答題卡上。
2．選擇題選出答案后，請將答案的英文字母填入答題卡上對應題號下的答案框內，不能答在試題卷上。
3．第Ⅱ卷各題的答案，必須答在答題卡規定的地方。要求卷面整潔，字跡工整。
4．考試結束，只交答題卡。
第Ⅰ卷(選擇題，共140分)
重慶市萬州區2008-2009學年高三第一次診斷性
數 學(理科)
本試卷分第I卷(選擇題)和第II卷(非選擇題)兩部分.全卷共三個大題，22個小題，滿分150分，考試時間為120分鐘.
注意事項：
1．答卷前，考生務必將自己的學校、班級、姓名、考號填寫在答題卷上.
2．第I卷每小題選出答案后，用筆填寫在答題卷上“第I卷答題欄”對應題目的答案欄內.不能答在試題紙上.
3．第II卷各題一定要做在答題卷限定的區域內.
參考公式：
如果事件A、B互斥，那么P(A＋B)＝P(A)＋P(B)
如果事件A、B相互獨立，那么P(A?B)＝P(A)?P(B)
如果事件A在一次試驗中發生的概率是P，那么n次獨立重復試驗中恰好發生k次的概率
第I卷（選擇題，共50分）
重慶市萬州區2008-2009學年高三第一次診斷性
數 學（文科）
本試卷分第I卷(選擇題)和第II卷(非選擇題)兩部分.全卷共三個大題，22個小題，滿分150分，考試時間為120分鐘.
注意事項：
1．答卷前，考生務必將自己的學校、班級、姓名、考號填寫在答題卷上.
2．第I卷每小題選出答案后，用筆填寫在答題卷上“第I卷答題欄”對應題目的答案欄內.不能答在試題紙上.
3．第II卷各題一定要做在答題卷限定的區域內.
參考公式：
如果事件A、B互斥，那么P(A＋B)＝P(A)＋P(B)
如果事件A、B相互獨立，那么P(A?B)＝P(A)?P(B)
如果事件A在一次試驗中發生的概率是P，那么n次獨立重復試驗中恰好發生k次的概率
第I卷（選擇題，共60分）
北京市第四中學2009屆高三上學期期中考試
理科綜合能力測試題（化學部分）
6．恒溫、恒壓下，1molA和nmolB在一個容積可變的容器中發生如下反應：A(g)+2B(g) 
A．物質A、B的轉化率之比為1：2
B．起始時刻和達平衡后容器中混合氣體密度相等
C．當V正(A)=2V逆(C)時，可斷定反應達到平衡狀態
D．若起始時放入3molA和3nmolB，則達平衡時生成3amolC
7．下列各元素中，一定屬于主族元素的是
A．X元素能形成+7價的含氧酸及其鹽
B．Y元素原子最外層電子數為2
C．Z元素的陰離子與同一周期稀有氣體元素的原子電子層結構相同
D．R元素的最高價氧化物是酸性氧化物
8．設NA為阿伏加德羅常數的值，下列有關敘述不正確的是
A．在標準狀況下，V升 SO3含氧原子個數是3V/22.4
B．常溫常壓下，1mol重水 所含電子總數為10NA
C．金剛石中，碳原子數與碳碳共價鍵數之比為1：2
D．常溫常壓下，NA個甲烷分子體積大于
9．下列離子方程式中，不正確的是
A．FeCl3溶液中加入鐵粉：2Fe3++Fe=3Fe2+
B．次氯酸鈣溶液中通入適量的SO2：Ca2++2ClO―+SO2+H2O=CaSO3↓+2HClO
C．氨氣通入醋酸溶液中：CH3COOH+NH3===CH3COO―+NH4+
D．在FeBr2溶液中通入足量的Cl2：2Fe2++4Br―+3Cl2=2Fe3++2Br2+6Cl―
10．下列有關物質的用途正確的是
①碘酒可作為醫用消毒劑 ②明礬可作為凈水劑 ③Cl2可用于制備漂白粉
④純凈的碳酸鋇可作為醫用“鋇餐” ⑤二氧化硫可作為漂白劑
A．①②③ B．①②③④ C．①②③⑤ D．全部
11．常溫下，向0.1mol下列物質①過氧化鈉②硫酸鋇③硫化鈉④偏鋁酸鈉⑤氯化鋁中分別加入
A．⑤①③④② B．⑤②①③④
C．⑤①④③② D．②⑤①③④
12．下列說法中正確的是
A．分子內脫去一個小分子的反應一定是消去反應
B．可用濃溴水除去苯中混有的苯酚
C．膠體是一種較穩定的分散系，可用滲析法從膠體中分離出離子或小分子
D．向鹵代烴水解后的溶液中直接加入硝酸銀溶液，可以確定鹵代烴中含有的鹵元素
13．
 |
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均為短周期元素，它們的原子序數依次遞增。A是最外層為一個電子的非金屬，C原子的最外層電子數是次外層的3倍；C和D可形成兩種固體化合物，其中一種為淡黃色固體；B和C可形成多種氣態化合物。由A、B、C三種元素可形成離子晶體，該晶體中各元素原子的物質的量之比為A∶B∶C = 4∶2∶3。請回答下列問題：
⑴寫出C和D形成的淡黃色固體化合物的電子式 。
⑵元素原子的物質的量之比為A∶B∶C = 4∶2∶3的晶體名稱為 ，其水溶液顯 性，其反應的離子方程式為 。
⑶請寫出與A
⑷寫出由B、C元素組成元素原子質量比為B∶C=7∶12的化合物的化學式 。
27．（15分）現有pH=2的醋酸溶液甲和pH=2的鹽酸乙，請根據下列操作回答問題：
⑴取10 mL的甲溶液，加入等體積的水，醋酸的電離平衡 移動（填“向左”、“向右”或“不”）；另取10 mL的甲溶液，加入少量無水醋酸鈉固體（假設加入固體前后，溶液體積保持不變），待固體溶解后，溶液中c(H+)/ c(CH3COOH)的比值將 （填“增大”、“減小”或“無法確定”）。
⑵相同條件下，取等體積的甲、乙兩溶液，各稀釋100倍。稀釋后的溶液，其pH大小關系為：pH（甲） pH（乙）（填“大于”、“小于”或“等于”）。
⑶各取25mL的甲、乙兩溶液，分別用等濃度的NaOH稀溶液中和至pH=7，則消耗的NaOH溶液的體積大小關系為：V(甲) V(乙) （填“大于”、“小于”或“等于”）。
⑷取25 mL的甲溶液，加入等體積pH=12的NaOH溶液，反應后溶液中c(Na+)、 c(CH3COO－)的大小關系為：c(Na+) c(CH3COO－)（填“大于”、“小于”或“等于” ）。
28．（18分）化合物A、B均是分子式為C8H8O3的無色液體，均難溶于水。從A、B開始，可發生圖示的一系列反應(反應中的無機物已全部略去)，E的苯環上的一元硝基化合物只有兩種，K可發生銀鏡反應。
⑴寫出A和K的結構簡式：A K
K與G中相同的官能團的名稱是：
⑵上圖a―i的反應中，屬于酯化反應的有 。
⑶寫出反應e的化學方程式： 。
寫出反應c的化學方程式： 。
⑷已知充分燃燒
29．（11分）Ⅰ．t℃時，甲、乙兩個燒杯中各盛有
⑴t℃時，KCl的溶解度為 。
⑵乙燒杯中剩余KCl溶液的物質的量濃度 甲燒杯中剩余KCl溶液的物質的量濃度（大于、小于、等于）
Ⅱ．在一定溫度下，2SO2(g)+O2(g)
2SO3(g)；△H＝一196.6 kJ／mol。向一個容積不變的容器中，充入2
mol SO2和1
mol O2，使之充分反應，熱量變化與△H相比較 （大于、等于、小于），原因是：
。
湖北省互聯網違法和不良信息舉報平臺 | 網上有害信息舉報專區 | 電信詐騙舉報專區 | 涉歷史虛無主義有害信息舉報專區 | 涉企侵權舉報專區
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com