2006年辽宁省十一市中等学校招生考试英语试卷
(供课改实验区考生使用)
(考试时间120分钟,试卷满分150分)
第一部分 听力(共30分)
(A)听录音选图片,从各题的三个选项中选出一个正确答案,并将其代表字母填在题前括号内。(录音播放一遍)
(B)听短对话回答问题,从各题的三个选项中选出一个正确答案,并将其代表字母填在题前括号内。(录音翻放一遍)
( )6. A. March 12. B. May 12. C. May 9.
( )7. A. Going fishing. B. Reading at home. C. Reading in the library.
( )8. A. America. B. China. C. Canada.
( )9. A. $165. B. $200. C. $ 35.
( )10. A. He saw the new teacher.
B. The new teacher was ill.
C. He didn't’ see the new teacher.
(C)听长对话回答问题,从各题的三个选项中选出一个正确答案,并将其代表字母填在题前括号内。(录音播放两遍)
( )11. A. To a museum. B. To a meeting. C. To a party.
( )12. A. 6:35. B. 6:45. C. 7:45.
( )13. A. She lost it yesterday.
B. She doesn’t have a watch.
C. Her watch doesn't work very well.
( )14. Three moths. B. About a month. C. Half a year.
( )15. By bus. B. On foot. C. By bike.
II. 听短文,按要求完成任务(共15分)
(A)听短文回答问题,从各题的三个选项中选出一个正确答案,并将其代表字母填在题前括号内。(共5分,每小题1分)(录音播放两遍)
( )16. A. Father’s Day. B. Mother’s Day. C. Mother’s birthday.
( )17. A. They don't like their father.
B. They like their mother more than their father.
C. Their father died.
( )18. A. Teacher. B. A student in a night school. C. A worker.
( )19. A. Pair of shoes. B. A pair of glasses. C. Some books.
( )20. A. Because of her old age.
B. Because of her poor eyes.
C. Because of her poor health.
(B)听短文,填写表格。(共10分,每小题2分)(录音播放两遍)
The reason they have to start early tomorrow
21 ________________________
Leaving time
22
The first place to visit
23 ________________________
The money for a family ticket
24 ________________________
The speaker’s mobile phone number
25 07762―
第二部分 笔试(共120分)
III. 单项选择(共20分,每小题1分)
从各题的四个选项中选出一个最佳答案,并将其代表字母填在题前括号内。
26. ―Could you get me a piano, Mum?
―There ________ enough room for one in our home. But we’ll try.
A. is B. are C. isn’t D. aren’t
27. Sue wants to take ________ this summer vacation, but she isn’t sure where to go.
A. a shower B. a trip C. money D. notes
28. ―Which do you like better, a pizza or a hamburger?
―_________, I just like Chinese food―dumplings.
A. Both B. Each C. Either D. Neither
29. The rain makes the people _________. They think the trees planted yesterday can grow well.
A. happy B. annoying C. sad D. terrifying
30. Tim is _________ the hospital where he volunteered. He has forgotten where it is.
A. looking about B. looking at
C. looking for D. looking after
31. ―Will you please give some advice on _________ English at home?
―Well, do a lot of reading and listen to English programs.
A. how to read B. how to learn
C. when to use D. where to use
32. Of all the ball games, I like baseball _________. It’s really my favorite.
A. well B. good C. better D. best
33. I enjoy the party very much, but I _________ go home. It’s too dark.
A. has to B. may C. mustn’t D. can’t
34. ―Has the match started?
―Started? Finished! Guo Yue _________.
A. is winning B. wins C. will win D. has won
35. _________ people will watch Beijing Olympic Games on TV in 2008.
A. Million of B. Millions of C. Five millions D. Million
36. ―Could you tell me _________ you’ll be away?
―About three weeks.
A. how long B. how far C. how soon D. how often
37. The room is messy. I don't know _________.
A. how you lived in it B. when did you live in it
C. why did you live in D. where you lived
38. ―What _________ under your bed, Nick?
―Oh, where is my model plane, Dad?
A. do you do B. are you doing
C. have you done D. did you do
39. Hurry up! The film _________ for ten minutes.
A. has been on B. began C. had begun D. has begun
40. ―You look excited.
―I am! I _________ Jackie Chan’s new
movie in
A. was going to B. went to C. am going to D. have gone to
41. When my mum _________, she realized she had left her bag on the bus.
A. got on a bus B. got home C. got along D. got in the way
42. To keep safe, everyone _________ to wear a seat belt in the car.
A. is supposed B. supposes
C. supposed D. will suppose
43. Do you think most students prefer tests _________ have easy questions?
A. who B. where C. that D. it
44. I have _________ chores to do today that I can’t go out with you.
A. so much B. such many C. so many D. such
45. Which sign means you can’t go straight?
IV. 补全对话(共10分,每小题1分)
(A)从方框内所给句子中选择恰当的句子完成下面对话,并将代表答案的字母写在方框下的括号处。
A: Hello, Zhang Ling.
B: Hello, Bruce. Where are you going
A: 46 _____________________
B: The hospital? 47 ______________________
A: Oh, I’ve got a little headache and cough. I’m afraid I’ve got the bird flu(禽流感).
B: Let me have a look. Don’t worry. Nothing serious. Just a cold. Drink more water and you’ll be fine soon. Let’s go to the movie now.
A: To the movie? Is there anything new on show?
B: Yes, Hero. 48 ______________________
A: Of course, I have. I have got the VCD>
B: 49 ______________________
A: No problem! Let’s go to my home now.
B: 50 ______________________ Thanks, Bruce.
A: It’s my pleasure. Let’s go.
A. I’m going to the library. B. Have you seen it?
C. What’s the matter? D. I’m going to the hospital.
E. You are welcome. F. That’s great.
G. Can you lend it to me?
46 ___________ 47 ___________ 48 ___________ 49 ___________
50 ___________
(B)在下面对话的空白处填入适当的话语(话语可以是句子、短语或词),使对话完整。
A: Congratulations(祝贺你)!You have won the first prize in the City Violin Competition.
B: 51 _________________________________.
A: 52 _________________________________?
B: Since I was four years old. I’ve learnt it for five years.
A: 53 _________________________________?
B: My mother did. But she doesn’t teach me now because she is very busy. I take extra violin lessons here in the violin club.
A: 54 _________________________________?
B: I come here three days a week.
A: 55 _________________________________?
B: I want to be a violinist when I’m older.
A: Wish you greater success!
B: Thank you!
V. 句子翻译(共10分)
(A)根据所给中文完成句子翻译。(共6分,每小题2分)
56. 如果你对人友善,你会有更多的朋友。
If you ___________________ people, you ___________________ more frieds.
57. 学生们想出了一个解决问题的好办法。
The students ___________________ a good idea to ___________________ the problem.
58. 他们在为这个有病的小男孩捐款。
_________________________________________________________.
(B)阅读下面药瓶说明,将其中划线部分的句子译成中文。(共4分,每小题2分)
59. ___________________________________________________________.
60. ___________________________________________________________.
VI. 完形填空(共20分,每空1分)
(A)根据短文内容,从A、B、C、D四个选项中选择一个最佳答案填入题前括号内。
A strange thing happens to nearly everybody at night. They 61 the lights pull up the covers and close their eyes. After they sleep for six or seven 62 , they wake up again. It sounds very strange, doesn’t it?
Sleep puzzles(使困惑)science all the time. 63 and doctors would like to talk about why one can’t fall asleep. They are not so sure 64 causes sleep.
You will sleep the best both 65 you are in good health and when you don’t eat too much or too little. No worries and a comfortable place to sleep are 66 , too. They advise against two in one bed.
Strange things 67 during sleep. For example, you often move during your sleep. You would feel 68 if you didn’t move. You also 69 . Part of your brain(大脑)is still 70 when you dream.
Don’t worry if you dream. Some great stories and poems were finished while their writers were dreaming.
( )61. A. turn on B. turn off C. turn up D. turn down
( )62. A. seconds B. hours C. days D. months
( )63. A. Scientists B. Nurses C. Artists D. Inventors
( )64. A. why B. how C. which D. what
( )65. A. after B. when C. before D. until
( )66. A. pleased B. possible C. important D. funny
( )67. A. happen B. happens C. happened D. happening
( )68. A. hungry B. tired C. relaxed D. worried
( )69. A. sleep B. wake up C. think D. dream
( )70. A. busy B. asleep C. awake D. sleepy
(B)根据短文内容,用方框中所给词的正确形式填空,使短文完整、正确(每个词只能用一次)。
eye is be watch play second bad make for and suitable relax
I think watching TV is not good for students. First, children 71 ___________ different from adults. It is true that students like 72 ___________ by watching TV. However, the dangerous thing 73 ___________ students is that they just can’t take their 74 ___________ off the screen. They will go on watching TV for hours 75 ___________ hours. It is very bad for their eyes. 76 ___________, many students have the habit of 77 ___________ too much TV. Then they will have little time for sports. Third, some TV programs are not 78 ___________ for students. Some even lead them to crimes. Finally, too much TV can 79 ___________ students weak in reading. They will lose interest 80 ___________ reading, which I think is a terrible thing.
VII. 阅读理解(共40分)
(A)根据短文内容从各题的A、B、C、D四个选项中选择一个最佳答案,并将代表字母填入题前括号内。(共20分,每小题1分)。
Passage 1
Ma Yan is not really a writer. But this 15-year-old girl has written a book that has moved many people around the world. “Ma Yan’s Diary” tells us about Ma’s life. She lives in a poor village called Zhangjiashu in Tongxin, Ningxia, and she has no money to go to school. But she is brave and has a strong desire(欲望)to go to school.
Her mother gave her diary to a French reporter, Pierre Haski when he went to Zhangjisshu
in 2001. Now, it has been published in France Italy,
Ma is now a Junior Three student at
“I want to study,” Ma wrote in her diary. “Why can boys study but girls can’t? It would be wonderful if I could stay at school forever.”
Ma loves school so much because she wants to have a better life.
“My parents work hard in the fields but they are still poor. They have no knowledge. Most girls in my village leave school early and get married young. I don’t want that kind of life,” Ma said.
After her story became known, many French student sent money to her.
Ma’s dream is the same as ever. She hopes to go to
( )81. Which of the following can describe Ma Yan’s character(性格)best?
A. Brave. B. Pretty. C. Lucky. D. Poor.
( )82. Now you can find “Ma Yan’s Diary” in all the following countries except _________.
A.
( )83. Which of the following is the ain reason for Ma Yan’s Diary to be published?
A. Her mother gave her enough money to publish the book.
B. She wrote about the poor life in her village.
C. She is very good at writing.
D. Her diary was read by a French reporter.
( )84. Which is the reason for her leaving school for the second time?
A. She had to help her mother do some housework.
B. Her brothers studied better than she did.
C. Girls were not equally treated(平等对待)in their village.
D. She didn’t study hard.
( )85. Ma Yan wants to study because she wants to __________.
A. teach her parents knowledge
B.
get more money for her study in
C. become more famous
D. get more knowledge to change her own life
Passage 2
( )86. Which passage is about sports news?
A. 1. B. 2. C. 3. D. 5.
( )87. Tom Consin’s performance is ___________.
A. good B. terrible C. boring D. frustrating
( )88. ___________ won the match for
A. Joe Swift B. Tom Cousin C. Wilkes D. Joseph Mendes
( )89. Harry Goldstein ___________ for the movie that is produced by Steven Bloomberg.
A. wrote music B. played the games
C. sold tickets D. performed
( )90. People are not allowed to bring ___________ into the concert hall.
A. tickets B. computers
C. boys and girls D. cameras, food and drink
Passage 3
Do you know why different animals or insects(昆虫)have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops(庄稼). When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters(猎人). This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid(液体)when it faces danger. While the liquid spreads over(散开), its enemies(敌人)can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
( )91. From the article we learn that locusts __________.
A. are dangerous to their enemies
B. are easily found by birds
C. change their colors to protect themselves
D. are small animals
( )92. How can insects with different colors from plants keep out of danger?
A. They have to move quietly.
B. They hide themselves in the day and appear at night.
C. They have the colors much like their enemies.
D. They run away quickly.
( )93. Bears and lions can keep safe because __________.
A. they live in forests
B. they like brown and grey colors
C. they move quietly
D. they have the colors much like the trees
( )94. Why can a kind of fish in the sea live up to now? Because __________.
A. it is very big and strong
B. the liquid it sends out can help it swim away from its enemies
C. the liquid it sends out can kill its enemies
D. it swims faster than any other fish
( )95. Which is the best title for this passage?
A. The Main Use of Colors for Animals and Insects
B. Colors of Different Animals and Insects
C. The Change of Colors for Animals and Insects
D. The Change of Different Animals and Plants
Passage 4
如果能正确地使用词典,它将成为你最好的朋友,并且你可以从中学到单词的发音、词性和释义,学到单词在句子中的使用方式、其他的意思以及相关动词短语。现在请看词典的摘录部分,选择最佳答案。
( )96. We can find these explainations(解释)in _________ dictionary.
A. an English-English B. a Chinese-English
C. an English-Chinese D. a Chinese
( )97. Another form of the word “proud” in this dictionary is _________.
A. pleasure B. pride C. happiness D. voice
( )98. You can find _________ new words in this dictionary extract(摘要).
A. many B. one C. two D. three
( )99. The word “proud” has ________ uses than the word “encourage”.
A. fewer B. less C. more D. much more
( )100. The word “voice” is __________.
A. a noun B. an adjective C. a verb D. an adverb
(B)根据短文内容按要求完成任务。(共20分,每小题2分)
Passage 5
阅读短文,简要回答问题。
It’s very common for students’marks to fall. Sometimes it is because of situations(情况)outside school, such as problems at home. Sometimes it is only because the exams get harder.
When your marks start to fall, you should try talking to a friendly teacher. He or she will be able to help you with the subjects you find difficult. Stop comparing yourself with other people. It does not matter if other students get higher exam marks than you. What is important is that you do your best. Before each exam, you should go through your notes from class. You should remember the most important things you have written in a shorter form.
Look through your shorter notes again just before the exam. You will be surprised when you find you remember so much. It may take hard work and your marks may not improve straight. But let your confidence rise by every mark. Soon they should begin to climb again.
101. Does the writer think student’marks fall just because of the problems outside school?
_______________________________________________________________.
102. What is the most important thing for you to do when your marks start to fall?
_______________________________________________________________.
103. What should you do in order to stop your marks from falling before the exams?
_______________________________________________________________.
104. How many suggestions does the writer give?
_______________________________________________________________.
105. What does the writer think of marks you made?
_______________________________________________________________.
Passage 6
从a-e中为下面短文的各自然段选出主题句,并将其标号填入题前括号内。
a. How it used to be.
b. Connecting worlds.
c. We couldn’t live without it.
d. The Internet makes the world smaller and smaller.
d. Information at the click(点击)of a mouse.
( )106. The Internet connects(连接)us to a world of information that we have never had before. We can share information with people around the world and have a much wider view of everything that touches(触及)our lives.
( )107. Before the Internet, the best place to find information was in the local library. This limited(限制)the information we could get and took a lot of time out of our day.
( )108. Today we can do a simple search on the Internet and get thousands of pages of information on the subject we want, all at the push of a button!
( )109. Technology(技术)is changing the way we communicate. Computers allow us to work faster and produce more. We no longer have to wait days or weeks to receive an answer. We can send an e-mail to someone on the other side of the world and receive and answer a few minutes later!
( )110. Having said all that, nobody knows what life without the Internet will be like. How did our parents do without it?
VIII. 书面表达(共20分)
(A)根据要求完成小作文,词数:约30词。(共5分)
Laura loves animals very much. She has a little dog named Huahua. She’s only two years old. She is white with a black nose. Her eyes are round and bright. She’s beautiful and lovely. She often meets her friends and says “Hello” with “Wang(汪)Wang” to them. She’s Laura’s good friend because she’s cute and friendly.
依照上文,描写你的宠物或你想拥有的宠物。
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
(B)根据要求完成大作文,词数:60―80词。(共15分)
提示:现在多大数学生是独生子女,有些学生从小娇生惯养,做事时往往考虑自己多,顾及别人的感受少,与家长、老师、同学相处得不太融洽。针对上述现象,请你谈谈:①你的表现。②你的想法(观点)。③你的建议。
提示词(仅供参考):
selfish(自私的) have a good relationship with(与……关系融洽)
respect(尊敬) communicate with(与……交流)
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2006年福建南平市初中毕业暨升学考试(新课程)
数学试卷
(满分:150分;考试时间:120分钟)
题 号
一
二
三
总分
1~10
11~16
17
18
19
20
21
22
23
24
25
26
得 分
说明:①注意运用计算器进行估算和探究
②未注明精确度、保留有效数字等的计算问题不得采取近似计算。
2006年福建南平市初中毕业暨升学考试(新课程)数学试卷
盐城市时杨中学
2006―2007学年度高三第三次调研考试
政 治 试 题 2006.11.4
命题:孙国华 审核:陈春梅
本试题分第1卷(选择题)和第Ⅱ卷(非选择题)两部分,满分150分,考试用时120分钟。
注意事项:
1.本试卷的选择题和非选择题都在答题卡上作答,不能答在试卷上。
2.选择题每小题选出答案后,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,再选涂其它答案。
3.非选择题必须在指定的区域内,用黑色字迹的签字笔或钢笔作答,不能超出指定区域或在非指定区域作答,否则答案无效。
第Ⅰ卷(选择题75分)
苏州市2006届高三教学调研测试
英 语
注意事项:
1.本试卷分第一卷(选择题)和第二卷(非选择题)两部分,满分150分。考试时间120分钟;
2.请将第一卷的答案填涂在答题卡上,第二卷的答案写在答题卷上,在试题卷上答题无效。
第一卷(三部分,共115分)
第一部分 听力(共两节,满分30分)
做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
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10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。
1. What time is the woman’s flight?
A. 1:30 p.m. B. 12:30 p.m. C. 12:15 p.m.
2. What are the speakers talking about?
A. A figure. B. A computer. C. A friend.
3. What can we learn from the conversation?
A. The bicycle is new.
B. The bicycle is parked outside.
C. The bicycle is being repaired.
4. Why is the woman trying to call David?
A. To tell him they are busy.
B. To invite him to go to the movies.
C. To ask him a question about movies.
5. Where are the two speakers now?
A. In the elevator.
B. In the man’s office.
C. In the Lost and Found office.
第二节(共15小题;每小题1.5分,满分22.5分)
听下面5段话。每段对话后有几个小题,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。听每段对话或独白前,你有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6. What does the man order?
A. He ordered a cup of tea and a couple of hot dogs.
B. He ordered a cup of coffee, and a couple of hamburgers.
C. He ordered a cup of hot chocolate and a couple of doughnuts.
7. What kind of taste does the man like?
A. All the 24 different kinds of taste.
B. The old fashion ones.
C. Any ones.
听第7段材料,回答第8、9题。
8.What is the relationship between the woman and the man?
A. An air hostess and a passenger.
B. A waitress and a customer.
C. A shop assistant and a customer.
9. Where may the man put his bag?
A. He may put it on the rack.t
B. He may put it on his seat.
C. He may put it under his seat.
听第8段材料,回答第10至第12题。
10. Where does the woman want to go?
A. The
11. How can the woman find her hotel?
A. She needs to take the subway and get off at the 59th street.
B. She needs to turn right and walk three blocks.
C. She needs to turn left and walk three blocks.
12. Where does the conversation take place?
A. In the subway.
B. On the street. C. In
听第9段材料,回答第13至第16题。
13. What are the speakers talking about?
A. A Trip to
14. Where will they stay in
A. At a hotel. B. At a friend’s house. C. In the open air.
15. How long will it take to go to
A. About four hours. B. About five hours. C. About six hours.
16. How many people will pay for the expenses besides the man?
A. Three. B. Four. C. Five.
听第10段材料,回答第17至第20题。
17. What is the instructor describing now?
A. A single term. x
B. The workbook for the lab course.
C. A piece of equipment.
18. What is the instructor’s main point?
A. Homework must be handed in on time in the biology lab.
B. The students will be able to make choices about the lab work.
C. A great deal of equipment is available in their school.
19. Why can we work on the “Activities” our own way?
A. Because the activities take less time.
B. Because there are full instructions for the activities.
C. Because there are no detailed instructions for the activities.
20. When would this talk most probably be given?
A. At the beginning of the term.
B. At the end of the term.
C. After the first lab lesson.
第二部分 英语知识运用(共两节,满分45分)
第一节 单项填空(共15小题;每小题1分,满分15分)
从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. Beyond _________stars, Fei Jun-long, the Chinese astronaut, saw nothing but_____ space.
A. 不填; the B. the; 不填 C. 不填;不填 D. the; the
22.―Dad, I’m confused what I am going to do after graduation.
―You’d better first explore your talents and get to know yourself so as to find out_________ your real interests lie.
A. what B. where C. in which D. how
23. Since her childhood, she has always tried her best to _______ her ideals.
A. live with B. live up to C. live through D. live on
24.________ I admire him as a writer, I do not like him as a man.
A. As though B. As much C. Much as D. Little as
25. The ________ look I her face suggested that the ________ it before.
A. surprising; wouldn’t know B. surprised; hadn’t known
C. surprising; hadn’t known D. surprised; shouldn’t know
26. He would never have got the job, ________ for the fact that his father had great influence over the company.
A. had it not been B. it had not been
C. it were not D. were it not
27. It is not how much you read but ________ you read __________ counts.
A. that; that B. that; what C. what; that D. which; what
28.―Guess what! I came across an old friend at the English evening last nigh.
―________ I’m sure you had a wonderful time together.
A. Sounds good! B. Very well. C. How nice! D. All right.
29. I was thinking of going to see John when who______ appear but John himself!
A. should B. shall C. must D. will
30. They expect us to do whatever they want ______ painting, decorating and repairs.
A. on the way to B. by way of C. out of the way D. in the way of
31. Rather than ________ up his marriage, he told his wife everything.
A. to risk to break B. to risk breaking C. risk to break D. risk breaking
32. The man’s first two ______ paintings are now on exhibition in the museum.
A. little red oil B. red little oil C. oil red little D. little oil red
33.―Tom, what would you like to eat, some beef?
―Mom, anything __________ beef. You know, I dislike beef.
A. but B. like C. than D. with
34. Our monitor ______ you more help, even though he was very busy.
A. may give B. may have given C. might give D. might have given
35.―Has Billy finished his homework today?
―I have idea. He _________ it this morning.
A. would do B. was doing C. has done D. had done
第二节 完形填空(共20小题;每小题1.5分,满分30分)
The lady with the white fence taught me to leave the gate to life open…
When my husband
died of a brain disease, I became very angry. Life was not 36 . I hated being alone. One day, as I was
37 down a busy street in town, I suddenly noticed a new fence, which was
being set up
“Hello!” I shouted and 43 at her. “Well, hello!” She stood up and wiped her hands in the apron. “I―I came to see the fence. It is so beautiful!” I said.
“The fence is
not there for my 44 ,” the lady explained to me in 45 voice. “I
live alone. But so many people drive by every day, and I thought they
“ 48 weren’t you sad when they expanded the road and everything changed so much?” I asked.
Her reply 49 my
life. “Change is a part of life and takes part in
I carefully left
the gate 52 and drove on with a new feeling inside me. I could not 53
what it was, but I could feel the thick stone wall around my angry heart
breaking off. And
36. A. fair B. unhappy C. successful D. unknown
37. A. walking B. driving C. wandering D. running
38. A. near B. beside C. around D. in
39. A. pulled down B. pulled off C. pulled through D. pulled out
40. A. welled B. dried C. took D. kept
41. A. put B. tear C. send D. carry
42. A. felt B. tasted C. sounded D. smelled
43. A. looked B. stared C. waved D. glared
44. A. sake
45. A. an angry B. a frightened C. a doubted D. have to
46. A. ought to B. should C. might D. have to
47. A. Everyone B. Nobody C. A few D. Few
48. A. So B. But C. Thus D. Though
49. A. gave B. changed C. charged D. cost
50. A. making B. leaving C. finding D. catching
51. A. better B. bitter C. best D. worst
52. A. open B. closed C. broken D. locked
53. A. discuss B. speak C. talk D. tell
54. A. unfortunately B. besides C. surprisingly D. instead
55. A. position B. way C. route D. method
第三部分 阅读理解(共20小题;每小题2分,满分40分)
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
Playbill
Thu, 24 Nov 2005 9:
Harold Pinter will not collect his Nobel Prize for Literature on Dec. 10 as planned because of health reasons.
The playwright was due
to travel to
The dramatist, who has been recovering from cancer of the esophagus(食道), will however still deliver his planned lecture to she Swedish Academy on Dec.7, which is due to be broadcast live to British television audiences.
Pinter is the first British playwright to win the Nobel Prize, worth $ 1.3 million. In recognition of both the award and his 75th birthday, a starry cast(党员阵容)of leading British actors is to perform a reading Pinter’s Celebration.
The event will
be presented by the Gate Theatre Dublin at
Directed by Alan Stanford, the cast includes Sinead Cusack , Janie Dee, Michael Gambon, Jeremy Irons, Stephen Rea, Charles Dance and Penelope Wilton.
For the reading of Celebration Gambon and Graham will take on the roles of the hard men and brothers Lambert and Matt who are married to two sisters, Julie and Prue, played by Wilton and Cusack respectively.
Set in a
Celebration received its world premiere(首演)at the Almeida in 2000 when it was directed by the author and presented along with the dramatist’s first play The Room, written 43 years earlier.
56. Which of the following statements is NOT mentioned?
A.
Harold Pinter will not travel to
B. Publisher
Stephen Page will travel to
C. Pinter is the first British to win the Nobel Rrize.
D. Pinter’s
play Celebration is set in a
57. Harold Pinter wrote his first play The Room when he was__________.
A.43
B
58. The part Penelope Wilton will play in Celebration is ________.
A. Lambert B. Matt C. Julie D. Prue
59. What would be the best title for the passage?
A. Pinter will not attend this year’s Nobel Prize Ceremony.
B. Celebration is to be performed by a of leading British actors.
C. Pinter will still deliver his planned lecture to the
D. Celebration received its world premiere at the Almeida in 2000.
B
When a 20-pound turkey emerged from the kitchen at a weekend dress rehearsal(排演)for Thanksgiving dinner, about two cozen Chinese immigrants pulled out their digital cameras and took pictures.
“Wah!” exclaimed several.
“It’s cooked so well,” said Wilson Goh. “Under the light, it’s very pretty.”
Sponsored(赞助)by the Chinese American Etiquette Association, the event addressed the typical American holiday’s traditions, which often baffle new immigrants.
“The great thing is that immigrants come and adopt these holidays
and traditions and also change them,” said Noah Pickus , a professor of ethics
and public policy at
Jane Leu, director of Upwardly Global, a
“Most don’t know that it is actually a celebration of getting
through the first year in
Many immigrants do adopt the holiday after they arrive in the
Cherie M. Querol Moreno, 52, of
“The spirit of the holiday lives in each wave of settlers that
arrives and enriches this country with their culture and traditions,” said
60. The Chinese American Etiquette Association is most probably an organization which______.
A.
helps new immigrants from
B. just
teaches new immigrants from
C. helps Chinese immigrant professionals rebuild their careers
D. studies American identity
61. From the passage, we can infer that______.
A. the two dozen Chinese immigrants took pictures excitedly
B. people usually get up late on a day off
C. immigrants don’t like to adopt American holidays and traditions
D. for many
immigrants, Thanksgiving is actually a celebration of getting through the first
year in
62. The underlined word “baffle” can be best replaced by ________.
A. surprise B. satisfy C. frighten D. puzzle
63. From the text, we know that
A. don’t like t serve turkey at Thanksgiving dinner
B. are celebrating Thanksgiving to get through the first year in
C. adopt American holidays and traditions and also change them
D. want to honor only their native
C
Yellowstone National Park is at high altitude(海拔).Most of the park is above 7,500 feet (2,275 meters).
A sunny warm day may become fiercely stormy with wind, rain, sleet and sometimes snow. Without enough clothing, an easy day hike or boat trip can turn into a battle for survival.
Seasonal Weather Information
Spring
Cold and snow continue into May, although
temperatures gradually climb. Early in spring, daytime temperatures average in the 40s to 50s; by late May and June, they may reach the 60s and 70s. Nighttime lows fall below freezing.
Summer
Daytime temperatures are usually in the 70s, occasionally reaching the 80s in the lower elevations(高度).Nights are cool, temperatures may drop in the 40s and 30s ―sometimes even the 20s. June can be cool and rainy; July and August tend to be somewhat drier, although afternoon thundershowers are common.
Fall
Weather can be pleasant, although temperatures average 10-20 degrees lower than summer readings. Nighttime lows can fall into the teens and lower. Snowstorms increase in frequency as the weeks go by or towards the end of the fall season.
Winter
Temperatures often stay near zero throughout the day, occasionally reaching high in the 20s. Subzero nighttime lows are common. Annual snowfall averages nearly 150 inches in most of the park. At higher places, 200-400 inches of snow have been recorded.
64. The
author writes this passage most probably for those who plan to ________ in
A. do research work B. take a business trip
C. have sports games D. Spend their holidays or take a tour
65. Which
of the following best describes
A. Yellowstone’s weather is generally changeable and it snows most of the year.
B. It’s neither too hot in summer nor too cold in winter.
C. Weather in fall is pleasant and temperatures never fall below freezing.
D. It’s pretty warm in the day and very cold at night throughout the year.
66. If you
are planning to spend your holiday in
A. Just some light clothing such as T-shirts or skirts.
B. Just some warm clothing such as sweaters and coats.
C. Both light clothing and warm clothing.
D. Either light clothing or warm clothing.
67. What does the underlined word “readings” refer to?
A. literature works B. books C. announcements D. figures
D
Seeing with Sound
Have you ever watched a dog lift up its ears and bark at the air? That dog has just heard a sound that is too high-pitched(声调高的)for you to hear.
The Science of Sound
Objects that are vibrating(振动),moving back and forth quickly, make sounds. Rhythmic sound vibrations produce sound waves. Sound waves travel in every direction. The frequency of a sound is the number of waves that pass a given point each second. The more rapidly and object vibrates, the greater the frequency of sound it makes. Frequency is measured in hertz. One hertz equals one sound wave per second.
The frequency of sound determines the degree of highness or lowness of the sound. A high-pitched sound has a higher frequency than a low-pitched sound. Humans hear sounds that have frequencies from about 20 hertz to 20,000 hertz..
Seeing with Sound
Sound with a frequency higher than 20,000 hertz is called ultrasound. In other words, ultrasound is too high-pitched for humans to hear. However, many animals can hear ultrasound. Bats can hear higher sounds than any other animal. Some can hear up to 210,000 hertz. Bats send out lots of high-pitched squeaks(吱吱叫声)and then listen to the echoes bouncing(弹跳)off things like insects. The shorter the time interval between the squeak and the echo, the closer they are to the insect. Using sound to find or “see” things is called echolocation.
Dolphin Sounds
Another animal
that uses ultrasound is the dolphin. Dolphins can hear sounds up to about
150,000 hertz. Dolphins use sound waves to find food underwater. They make
clicking sounds that hit whatever is around them and then bounce back to the
dolphins. Dolphins can send as many as 2,000 clicks per second. Dolphins’
ultrasound ability is so sensitive that they can detect small fish from 10 feet
(
Now what about that dog that heard a sound that you did not? The sound was his owner using an ultrasonic whistle to call him home. Because dogs can hear up to 50,000 hertz, the dog at the park will head home.
68. To be able to hear ultrasound, you must be able to hear______.
A. less than 20 hertz
B. exactly
C. less than 20,000 hertz D. more than 20,000 hertz
69. Which animal can hear the highest ultrasound according to the passage?
A. A bat. B. A dog. C. A dolphin. D. A human.
70. Which of the following statements is an example of echolocation?
A. The bat caught the insect in midair and flew off to eat it.
B. The dolphin made clicking sounds that bounced off the fish and back to it.
C. The person heard an echo when he shouted into the valley.
D. The dog heard his owner’s ultrasonic whistle because he used ultrasound.
E
There is a popular belief among parents that schools are no longer interested in spelling. No school I have ever taught in has ever ignored spelling or considered it unimportant as a basic skill. There are, however, different ideas about how to teach it, or how much priority(优先)it must be given over general language development and writing ability. The problem is, how to encourage a child to express himself freely and confidently in writing without holding him back with the complexities(复杂性)of spelling.
If spelling becomes the only focal(焦点的)point of his teacher’s interest, clearly a bright child will be likely to “play safe”. He will tend to write only words within his spelling range, choosing to avoid adventurous language. That’s why teachers often encourage the early use of dictionaries and pay attention to content rather than technical ability.
I was once shocked to read on the bottom of a sensitive piece of writing about a personal experience: “This work is terrible! There are far too many spelling errors and your writing is terrible.” It may have been a sharp criticism of the pupil’s technical abilities in writing, but it was also a sad reflection on the teacher who had omitted to read the essay, which contained some beautiful expressions of the child’s deep feelings. The teacher was not wrong t draw attention to the errors, but if his priorities had centered on the child’s ideas, an expression of his disappointment with the presentation would have given the pupil more motivation (动机)to seek improvement.
71. Teachers are different in their opinions about________.
A. the difficulties in teaching spelling
B. the role of spelling in general language development
C. the complexities of the basic writing skills
D. the necessity of teaching spelling
72. The underlined expression “play safe” probably means______.
A. to write carefully B. to do as teachers say
C. to use dictionaries frequently D. to avoid using words one is not sure of
73. Teachers encourage the use of dictionaries so that________.
A. students will be able be able to express their ideas more freely
B. students will have more confidence in writing
C. teachers will have less trouble in correcting mistakes
D. students will learn to be independent of teachers
74. The author seems to think that the teacher’s judgment on that sensitive piece of writing is _________.
A. unfair B. reasonable C. foolish D. careless
75. The major point discussed in the passage is _________.
A. the importance of developing writing skills
B. the complexities of spelling
C. the correct way of marking compositions
D. the relationship between spelling and the content of a composition
第二卷(共35分)
第四部分 写作(共两节,满分35分)
第一节 短文改错(共10小题;每小题1分,满分10分)
此题要求改正所给短文中的错误。对标有题号的每一行作出判断:如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:
该行多一个词:把多余的词用斜线(/)划掉,在该行右边横线上写出该词,并也用斜线划掉。
该行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。
该行错一个词:在错的词下划一横线,在该行右边横线,在该行右边横线上写出改正后的词。
注意:原行没有错的不要改。
Yesterday my English teacher asked each student write 76.________
a composition title “The Greatest Achievement of My 77.________
Life”. I’m not sure what to write about it. I’ve thought 78.________
it over for a long time. I did many things. Coming to 79.________
Achievement. I think my greatest achievement was 81.________
learning English. Sometime I don’t understand everything 82.________
people are saying, but each day I get better or better. 83.________
I told my teacher this was difficult composition to write. 84.________
Above all, it is hard to measure everything you have done 85.________
in your life.
第二节 书面表达(满分25分)
假定你是李华。在最近的一次班会上,你班同学们就“高三学生是否需要吃补品来保持健康”展开了讨论。请根据下表提供的信息用英语写一篇短文,并谈一些你自己的看法,给某英语杂志投稿。
60%的同学认为
40%的同学认为
1.坚持锻炼,无需吃任何补品(tonic)。
1.高三阶段课业繁重,很多同学经常感到疲劳
2.过多摄入补品会增加体重,对健康不利。
2.补品可以帮助恢复精力。
3.价格比较贵。
3.没时间锻炼身体。
注意:1.词数:100左右。短文开头已为你写好,不计入词数。
2.内容可适当发挥,注意行文连贯。
I’m writing to tell about the discussion we’ve had in the recent class meeting about whether Senior 3 students should take a lot of tonics to keep fit.
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
____________________________________________________________________________
江苏省淮阴中学2007届高三第一次阶段检测化学试卷
可能用到的相对原子质量:H-1;C-12;N-14;O-16;P-31;S-32;Cl-35.5;Si-28;Br-80;I-127;Na-23;Mg-24;Al-27;Fe-56;Zn-65;Cu-64;Ag-108;Ba-137
第Ⅰ卷(选择题,共64分)
一.选择题(每小题只有1个选项符合题意,4分×8=32分)
1.下列说法正确的是
A.钢铁发生电化腐蚀的正极反应式:Fe-2e-== Fe2+
B.氢氧燃料电池的负极反应式:O2 +2H2O +4e- == 4OH-
C.粗铜精炼时,与电源正极相连的是纯铜
D.用惰性电极电解饱和食盐水时,阳极的电极反应式为:2Cl- -2e-==Cl2↑
2.已知几种阴离子还原性强弱顺序为OH-<Cl-<Br-<I-<S2-。若在某溶液含有相同浓度的OH-、Cl-、Br-、I-、S2-,当向其中逐滴加入新制的饱和氯水直至过量时,最后被氧化的离子是
A. Br- B. Cl- C. OH- D. S2-
3.根据表中给出的几种物质在常压下的熔、沸点数据,判断下列有关说法中错误的是
NaCl
AlCl3
SiCl4
单质B
熔点
810℃
190℃
-68℃
1300℃
沸点
1465℃
183℃
57℃
2500℃
A.SiCl4形成的晶体是分子晶体 .B.单质B可能是原子晶体
C.电解NaCl水溶液可制得金属钠 D.不能用电解熔融AlCl3制取单质铝
4.为了更好地解决能源问题,人们一方面研究如何提高燃料的燃烧效率,另一方面寻找新能源。以下做法可以提高燃料的燃烧效率的是
A.将煤转化成煤气或转化为甲醇等液体燃料来燃烧
B.将煤脱硫后燃烧
C.通入大大过量的空气
D.将煤干馏成煤焦油来燃烧
5.设NA为阿伏加德罗常数,下列叙述正确的是
A.1molFeCl3完全转化为Fe(OH)3胶体后生成NA个胶粒
B.标准状况下,2.24 L 乙醛完全燃烧所得CO2分子数为0.2 NA
C.1L0.1mol?L-1的醋酸溶液中的分子总数大于0.1NA
D.通过化学反应制得1molO2,转移电子的数目一定是4NA
6.发生原电池的反应通常是放热反应,在理论上可设计成原电池的化学反应是
A.C(s)+H2O(g)=CO(g)+H2(g) ;△H>0
B.Ba(OH)2?8H2O+2NH4Cl(s)=BaCl2(aq)+2NH3?H2O(l)+8H2O(l); △H>0
C.CaC2(s)+2H2O(l)=Ca(OH)2(s)+C2H2(g) ;△H<0
D.CH4(g)+2O2(g)=CO2(g)+2H2O(l) ;△H<0
7.下列有关化学实验的操作或说法中,正确的是
A.配制氯化铁溶液时,先将氯化铁溶于浓盐酸,再用蒸馏水稀释并加入适量铁粉
B.用加热法测定硫酸铜晶体中结晶水含量时,若在空气中冷却会使结果偏低
C.将浓硫酸在量筒中稀释
D.将锌粒投入CuSO4溶液中充分反应后,固体质量一定增加
8.某无色溶液中滴入酚酞试液显红色,该溶液中可以大量共存的离子组是
A.Mg2+、Al3+、HCO3-、SO32- B.K+、Na+、AlO2-、NO3-
C.K+、Ca2+、MnO4-、Cl- D.NH4+、Fe3+、SO42-、SCN-
二.选择题(本题包括8小题,每小题4分,共32分。每小题有一个或两个选项符合题意)
9.下列实验过程完成后,最终的白色沉淀不一定是BaSO4的是
A.Fe(NO3)2溶液 白色沉淀
B.Ba(NO3)2溶液 白色沉淀
C.无色溶液 白色沉淀
D.无色溶液无明显现象白色沉淀
10.右图中每条折线表示周期表ⅣA~ⅦA中的某一族元素氢化物的沸点变化,每个小黑点代表一种氢化物,其中a点代表的是
A.H2S B.HCl C.PH3 D.SiH4
11. 下列说法中正确的是
A. NH3是极性分子,分子中N原子处在3个H原子所组成的三角形的中心
B. CCl4是非极性分子,分子中C原子处在4个Cl原子所组成的正方形的中心
C. H2O是极性分子,分子中O原子不处在2个H原子所连成的直线的中央
D. CO2是非极性分子,分子中C原子处在2个O原子所连成的直线的中央
12.2004年美国圣路易斯大学科学家研制了一种新型的乙醇电池(DEFC),它用磺酸类质子溶剂,在200℃左右时供电,乙醇电池比甲醇电池效率高出32倍且更安全。电池总反应为:C2H5OH +3O2= 2CO2 +3H2O,电池示意如右。下列说法不正确的是
A. a极为电池的正极
B. 电池工作时电流由b极沿导线经灯泡再到a极
C. 电池正极的电极反应为:4H+ +O2 +4e- =2H2O
D.设每个电子所带电量为q库仑,则1mol乙醇被氧化产生6NAq库仑的电量
13.类推的思维方法在化学学习与研究中有时会产生错误结论,因此类推的结论最终要经过实践的检验,才能决定其正确与否,下列几种类推结论中错误的是
①钠与水反应生成NaOH和H2;所有金属与水反应都生成碱和H2
②Fe3O4可写成FeO?Fe2O3;Pb3O4也可写成PbO?Pb2O3
③铝和硫直接化合可以得到Al2S3;铁和硫直接化合也可以得到 Fe2S3
④不能用电解熔融的AlCl3来制取金属铝;也不能用电解熔融的MgCl2来制取金属镁
A.① B.②③ C.④ D.①②③④
14.在酸性溶液中存在着大量的NH、K+和Ba2+三种阴离子,还可能存在
①HCO、②NO、③SO、④CO、⑤AlO五种阴离子中的
A. 只有① B.只有② C. ③和⑤ D. ②和③
15.把锌片和铁片放在有稀食盐水的酚酞溶液的表面皿中,如图所示经过一段时间后,最先观察到变红的区域是
A.Ⅰ和Ⅲ
B.Ⅰ和Ⅳ
C.Ⅱ和Ⅲ
D.Ⅱ和Ⅳ
16. 已知:
①向KMnO4晶体滴加浓盐酸,产生黄绿色气体;
②向FeCl2溶液中通入少量实验①产生的气体,溶液变黄色;
③取实验②生成的溶液滴在淀粉KI试纸上,试纸变蓝色。下列判断正确的是
A.上述实验证明氧化性:MnO4->Cl2>Fe3+>I2
B.上述实验中,共有两个氧化还原反应
C.实验①生成的气体有可能使湿润的淀粉KI试纸最终仍呈白色
D.实验②证明Fe2+既有氧化性又有还原性
第Ⅱ卷(共86分)
三.(本题包括17、18、20三小题,共24分)
17(共8分)下列实验操作或对实验事实的叙述正确的是 (填序号)
① 为了提高纯锌与稀硫酸反应的速率,可向稀硫酸中滴入几滴CuSO4溶液
② 向沸腾的NaOH稀溶液中滴加FeCl3饱和溶液,以制备Fe(OH)3胶体;
③使用胶头滴管的任何实验都不允许将滴管插入液面以下
④ 为了获得胆矾晶体,可将CuSO4溶液蒸干、灼烧到质量不再发生变化时为止
⑤ 不慎将苯酚溶液沾到皮肤上,立即用酒精清洗;
⑥ 用石英坩埚高温熔融NaOH和Na2CO3的固体混合物
⑦配制浓硫酸和浓硝酸的混合酸时,将浓硫酸沿器壁慢慢加入到浓硝酸中,并不断搅拌;
⑧用洁净的玻璃棒蘸取浓HNO3,点在pH试纸中部以测定此浓HNO3的pH
18(共10分)铝和氢氧化钾都是重要的工业产品。请回答:
(1)铝与四氧化三铁发生铝热反应的化学方程式为
(2)铝与氢氧化钾溶液反应的离子方程式是
电解槽内装有阳离子交换膜(只允许阳离子通过),其工作原理如图所示。
①该电解槽的阳极反应式是
____________________________
②通电开始后,阴极附近溶液pH会增大,其主要原因是 (填序号)
A.阳极区的OH-移向阴极所致
B.阴极产生的金属钾与水反应生成了大量OH-
C.阴极由H2O电离出的H+放电成H2,水电离平衡移动使OH-浓度增大
③除去杂质后的氢氧化钾溶液从溶液出口_____________(填写“A”或“B”)导出。
19 (共6分)已知a、b、c、d、e分别是Ca(OH)2、Ca(HCO3)2、HCl、Ba(NO3)2、Na2CO3五种物质水溶液中的各一种。它们互相反应的情况如下表所示
a
b
c
d
e
c
↓
↓
?
↑
-
b
↓
?
↓
-
-
“↓”表示生成沉淀;“↑”表示产生气体;“-”表示无明显现象;“?”表示实验未做。
则c 是 e是 (均填化学式)
四(本题包括20~23四小题,共40分)
20(9分)如图所示的是以黄铁矿为主要原料接触法制硫酸工业流程示意图。回答下列问题
(1)从出口⑥处排出的气体一般不应含有 (填序号)
A.SO3 B.N2 C.SO2 D.水蒸气
(2)对从进口⑧喷进的液体的叙述最准确的是 (填序号)
A.水 B.发烟硫酸 C.98.3%的浓硫酸 D.稀硫酸
(3)设备A中发生反应的化学方程式为
21 (共15分)物质A、D及F的水溶液均呈黄色,D是单质,F的溶液遇苯酚显紫色,A是一种重要工业生产中的主要原料。且A、C、D均含有某一非金属元素,C的相对分子质量与过氧化氢的相对分子质量相等。反应过程中生成的水等与转化无关的物质已经略去。这些物质有以下转化关系。试回答以下问题:
(1)A是 ,C是 ,F是 (均填化学式)。
(2)A与热盐酸反应的离子方程式为
(3)写出该框图中由B→E的化学方程式
22(共6分)盐W的饱和溶液在电解时的产物能发生如下图所示的系列变化。图中每一方格表示有关的一种主要反应物或生成物(反应中加入或生成的水以及生成的其他产物已经略去)。已知:A、B、C、D、E在常温常压下均是气态物质,A的水溶液pH大于7,W的饱和溶液pH小于7,反应①属于置换反应。
回答下列问题:
(1)A的电子式为
(2)反应②的化学方程式
(3)反应③的离子方程式
23(共10分)为除去粗盐中的Ca2+、Mg2+、Fe3+、SO42+以及泥沙等杂质,某同学设计了一种制备精盐的实验方案,步骤如下(用于沉淀的试剂稍过量)
(1)判断BaCl2已过量的方法是
(2)第④步中,相关的离子方程式是
(3)若先用盐酸调pH再过滤,将对实验结果产生影响,其原因是:
____________________________
(4)为检验精盐纯度,需配制150 mL.0.2 mol/L NaCl(精盐)溶液,右图是该同学转移溶液的示意图,图中的错误是
_______________________________________________。
五(本题包括24、25两题,共16分)
24 (共8分) 臭氧(O3)可以使湿润的淀粉-碘化钾试纸变蓝,化学方程式:
KI+O3+H2O→KOH+I2+O2(未配平)
(1)该反应中氧化剂的名称为 ,还原产物的化学式为
(2)配平后的化学方程式是
(3)若消耗0.1 mol氧化剂,反应中转移电子的物质的量为
25.中学化学教材上有如下介绍:“在氢氧化钠浓溶液中加入氧化钙,加热,制成的白色固体就是碱石灰,它是水和二氧化碳的吸收剂”。有两个实验小组的同学决定通过实验探究碱石灰的组成。
(1)第一小组设计的实验方案如下
①下列关于溶液中n(OH-)、n(Ca2+)、n(Na+)之间的关系式正确的是_________(填序号)
A.n(Na+)+2n(Ca2+)= n(OH-) B.2n(Na+)+n(Ca2+)=n(OH-)
C.n(Na+)+n(Ca2+)=2n(OH-)
② 现有4.0g碱石灰,设其中n(Na+)=x mol,n(Ca2+)=y mol,请填写列空格:
碱石灰的
可能组成
NaOH,CaO
NaOH,CaO , Ca(OH)2
NaOH
Ca(OH)2
NaOH, Ca(OH)2,H2O
x、y之间关系式
(等式或不等式)
A
40x+56y<4.0<40x+74y
B
C
把表中A、B、C的关系式填在下面空格上:
A: ;B: ;C:
(2)第二小组查得如下资料:氢氧化钙在250℃时不分解,氢氧化钠在580℃时不分解。他们设计了如下方案并得出相关数据:取市售碱石灰4.0g,在250℃时加热至恒重,测得固体质量减少了0.6g,剩余固体在580℃时继续加热至恒重,固体质量又减少了0.7g 。请通过计算确定该碱石灰各成分的质量分数。