2008年高考英语试题(天津卷)
2008天津高考英语试题分析与答案详解

2008天津高考英语试题分析与答案详解总体分析:今年的天津市高考英语试卷仍然秉承这注重考查语言运用能力的原则,注重了特定语言环境下上、下文的联系,难度适中,话题丰富且贴近生活,不失为一套质量较好的试题。
试题分析:第一部分:英语知识运用第一节:单项填空该节从以下几个方面考查学生的英语水平:1. 基础语法知识2. 对词义的正确理解3. 相近词的辨析4. 固定词组的搭配5. 交际用语的灵活运用第1题:正确答案C。
该题考查考生对题干中两个句子含义的理解以及对选项中连词的掌握情况。
由含义可知后句“那天下雨或寒冷”与前句“这周日去公园野餐”是条件与结果的关系,且为否定成立,故正确答案为D “如果不”第2题:正确答案B。
该题考查考生对题干中两个句子含义的理解以及对选项中四个复合形容词含义的理解。
通过第二句的“works in his officefar into the night”可知“我”哥哥是个勤奋工作的人。
故正确答案为B. A项含义为“开通的,无偏见的”C项含义为“自信的”D项含义为“热心肠的”第3题:正确答案A。
该题考查考生对对话及情景的理解以及对选项中动词短语的掌握情况。
由对话内容可知一方对于面试结果表示担忧;另一方安慰其耐心等待。
故A 项为正确答案。
“放松”用于缓解对方压力。
B项用以同意对方的建议或鼓励对方去做“开始吧,去做吧”C 项“不要犹豫不决,要全力以赴”D项用于预祝对方好运“祝你好运”第4题:正确答案C。
该题考查考生对非谓语形式的掌握情况。
非谓语动词最关键的一步为确定其逻辑主语。
此题的逻辑主语为“the fans”与动词“throw”之间应为主动关系,可排除B、D两项。
通过语境可知“let out loud shout(大声喊叫)”与“throw”应为同时发生,故正确答案应为C.第5题:正确答案D。
该题考查考生对题干中两个句子含义的理解以及对选项中代词的掌握情况。
由上句中的“use the Internet or go to the library”可知只涉及到两种情况,故可删除B、C项。
2008年高考—英语(天津卷)Word版含答案

参考答案第一、二部分(Key to 1-55)1.C2.B3.A4.C5.D6.A7.D8.C9.B 10. D11.A 12.C 13. D 14.B 15.A 16.C 17.B 18.A 19.D 20.B21.C 22.A 23.D 24.C 25.B 26.A 27.D 28.B 29.C 30.D31.C 32.A 33.B 34.D 35.C 36.B 37.D 38.C 39.A 40.C41.D 42.A 43.C 44.B 45.A 46.D 47.B 48.C 49.D 50.A51.B 52.A 53.D 54.B 55.A第三部分第一节:Last summer I go to America and studied at a language 56. wentschool. I had many wonderful experience, but I also 57. experienceshad a sad one. One day, the school held∧party, where 58. aI ∧ invited to talk about Tianjin. After that they asked me a lot of 59. wasthings about China. But I couldn’t explain them with English 60. inclearly. I felt sadly. I learnt a lesson from this experience. I 61. sadhave already studied English for eight years, ∧I can’t use it 62. but/and/yetvery good. I must work hard to improve my spoken Englishso that I will not be able to communicate freely with foreigners.I hope I can be a bridge between China and others countries 65. otherin the future.第二节一、评分原则:1. 本题总分为25分,按5个档次给分。
2008高考英语天津卷听力原文

2008年普通高等学校招生全国统一考试英语试题(天津卷)听力录音稿第一节:听下面五短对话,听完没对对话后,你将有十秒例如TextW: I have to be absent from class next Friday and I need to borrow someone’s notes.M: Well, you can certainly borrow mine if you don’t mind my awful handwriting.Text 2W: Sam, I can’t go to the cinema with you today.M: What’s wrong, Margin?W: I have to make dinner for my family, my mother is sick.Text 3W: Do you think John would help me move the piano?M: Y ou’d better not ask now, he is writing a composition.Text 4W: Look, it’s already 8. Tom said he’d be here by 7.M: Y es, but know what the traffic is like this time of the evening.W: He said he’d try not to be late. Why does he always do this? I’ve had enough this time.Text 5W: Dad I’ve got a letter from Han Mei. She wants to stay with us for a week next month, can she stay?M: Sure, we haven’t seen her since last October.W: Not we, you met her last October, but I haven’t seen her for two years.第二节Text 6W: Did you go out yesterday evening?M: Yes, we went to the Tianjin sports center to watch a women volleyball game between Tianjin and US. The US team was led by Lang Ping, the former coach of the Chinese national team.W: How was the game?M: It’s very exciting, we enjoyed it very much, but we missed the first 30 minute s.W: Why?M: We took a wrong bus, so we were late for the game. We got there at 7:30.W: That’s too bad.Text 7M: 7286712W: Hello, Susan’s speaking, may I speak to Judy please?M: I’m afraid she is not here at the moment. I am her brother, shall I tak e a massage?W: Y es, you see, Judy and I plan to play table tennis tomorrow, but my cosine has broken my bat, I think Judy has an extra one, so please ask her to bring it for me.M: So, Susan called, her table tennis bat broke, hope Judy bring an extra one.W: Y es, thank you, er…. One more thing, I lent her a book a couple of weeks ago, I think she hasprobably forgotten it all together, could you possibly ask her to bring along that book as well.M: Ok, bring along Susan’s book.W: Thank you very much!M: Bye!Text 8W: Can I help you?M: I need to find this specific magazine, and I am not sure where to look.W: How old is the magazine you need to find? Is it a recent magazine less than a year old or is it an old magazine?M: Y ou need to know how old the magazine is to find it?W: Y es, the more recent magazines are in the magazine reading room on the second floor, but after a year, magazines are tight together and kept on the third floor.M: Well, the magazine I want to find is more than a year old, so that means I need to go to the second floor. Oh, excuse me, what I am saying, the third floor.W: That’s right, the third floor.M: Thanks for your help.Text 9M: Good morning, Laura, what do you want to talk to me about?W: Good morning, professor Smith. I w ant to talk to you about changing my major. Y ou see, I’ve decided to work in art museum when I graduate in three years, I think I should change my major to art history.M: Y ou know, Laura, I think you should give this decision after some more thought. Y ou’ve do well in your years of business major, the sign is, all organizations need good managers.W: That’ true, but wasn’t I still have to know a lot about art?M: Why not attend a few lectures in art history and try working a few hours a week as a volunteer at the local art museum to see if you really like working there.Text 10W: Boys and girls, can I have your attention please? This is a message for Grade 7 and 8. Because of the rain, the swimming competition will not be hold at the new town swimming pool as planed. It will be hold at the Jackson sports center. Buses will be leave in school at 10 to take each you to the center. Y ou will be returning to school this afternoon to catch your usual buses home. Now here are the arrangements for this morning. Grade 7 and their teachers are together at the front gate at 9:35, the first two buses will take you there. Grade 8 and their teachers will meet at the front gate at 9:45, you will go on the next two buses. Cold drinks will be available at the sports center. If you normally all do your lunch at the school dinning hall, please hand in your order before 9:30. Y our lunch will be delivered to the front gate of the center at 12:30. Thank you!。
2008高考试题——英语(天津卷)(有答案)

2008年普通高等学校招生全国统一考试(天津卷)英语本试卷分第I卷(选择题)、第II卷(非选择题)和第III卷(选择题)三部分,共150分,考试用时120分钟。
第I卷1至10页,第II卷11至12页,第III卷13至16页,考生务必将答案写在答题卡上,答在试卷上的无效。
考试结束后,将本试卷和答题卡一并交回。
祝各位考生考试顺利!第I卷第一部分: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。
例:S tand over there _____ you’ll be able to see it before.A. orB. andC. butD. while答案是B。
1. We’ll have a picnic in the park this Sunday _____ it rains or it’s very cold.A. sinceB. ifC. unlessD. until2. My brother is really ____. He often works in his office far into the night.A. open-mindedB. hard-workingC. self-confidentD. warm-hearted3. ---- I just can’t stop worrying about the result of the job interview.----_____. There’s nothing you can do now but wait.A. RelaxB. Go aheadC. Go for itD. Good luck4. _____ their hats into the air, the fans of the winning team let out loud shouts of victory.A. To throwB. ThrownC. ThrowingD. Being thrown5. To know more about the British Museum, you can use the Internet to go to the library, or _______.A. neitherB. someC. allD. both6. She ______ have left school, for her bike is still here.A. can’tB. wouldn’tC. shouldn’tD. needn’t7. The meal over, the managers went back to the meeting room to ______ their discussion.A. put awayB. take downC. look overD. carry on8. It was along the Mississippi River _______ Mark Twain spent much of his childhood.A. howB. whichC. thatD. where9. ----How much do I owe you for lunch?----______. It’s nothing.A. You’re welcomeB. Forget itC. With pleasureD. That’s right10. Many Chinese universities provided scholarships for students ______ financial aid.A. in favour ofB. in honour ofC. in face ofD. in need of11. Most air pollution is caused by the burning of ____ like coal, gas and oil.A. fuelsB. articlesC. goodsD. products12. The last time we had great fun was _____ we were visiting the Water Park.A. whereB. howC. whenD. why13. Her shoes ______ her dress; they look very well together.A. suitB. fitC. compareD. match14. He _____ football regularly for many years when he was young.A. was playingB. playedC. has playedD. had played15. At the railway station, the mother waved goodbye to her daughter until the train was _______.A. out f sightB. out f reachC. out f orderD. out f place第二节:完形填空(共20小题;每小题1.5分,满分30分)阅读下面短文,掌握其大意,然后从16-35各题所给的A、B、C、D四个选项中,选出最佳选项。
08天津高考英语一一分析

2008天津高考英语试题分析与答案详解总体分析:今年的天津市高考英语试卷仍然秉承这注重考查语言运用能力的原则,注重了特定语言环境下上、下文的联系,难度适中,话题丰富且贴近生活,不失为一套质量较好的试题。
试题分析:第一部分:英语知识运用第一节:单项填空该节从以下几个方面考查学生的英语水平:1. 基础语法知识2. 对词义的正确理解3. 相近词的辨析4. 固定词组的搭配5. 交际用语的灵活运用第1题:正确答案C。
该题考查考生对题干中两个句子含义的理解以及对选项中连词的掌握情况。
由含义可知后句“那天下雨或寒冷”与前句“这周日去公园野餐”是条件与结果的关系,且为否定成立,故正确答案为D “如果不”第2题:正确答案B。
该题考查考生对题干中两个句子含义的理解以及对选项中四个复合形容词含义的理解。
通过第二句的“works in his officefar into the night”可知“我”哥哥是个勤奋工作的人。
故正确答案为B. A项含义为“开通的,无偏见的”C项含义为“自信的”D项含义为“热心肠的”第3题:正确答案A。
该题考查考生对对话及情景的理解以及对选项中动词短语的掌握情况。
由对话内容可知一方对于面试结果表示担忧;另一方安慰其耐心等待。
故A 项为正确答案。
“放松”用于缓解对方压力。
B项用以同意对方的建议或鼓励对方去做“开始吧,去做吧”C 项“不要犹豫不决,要全力以赴”D项用于预祝对方好运“祝你好运”第4题:正确答案C。
该题考查考生对非谓语形式的掌握情况。
非谓语动词最关键的一步为确定其逻辑主语。
此题的逻辑主语为“the fans”与动词“throw”之间应为主动关系,可排除B、D两项。
通过语境可知“let out loud shout(大声喊叫)”与“throw”应为同时发生,故正确答案应为C.第5题:正确答案D。
该题考查考生对题干中两个句子含义的理解以及对选项中代词的掌握情况。
由上句中的“use the Internet or go to the library”可知只涉及到两种情况,故可删除B、C项。
2008年高考英语试题及答案

2008年的⾼考结束了现在找了08年的⾼考英语试卷给⼤家看看⼤家⼀起做做吧这是全国卷1的这是今天找的希望对⼤家有⽤2008年普通⾼等学校招⽣全国统⼀考试英语本试卷分第⼀卷(选择题)和第⼆卷(⾮选择题)两部分。
第⼀卷1⾄14页。
第⼆卷15-18页。
考试结束,将本试卷和答题卡⼀并交回。
第⼀卷注意事项。
1.答题前,考⽣在答题卡上务必⽤直径0.5毫⽶⿊⾊墨⽔签字笔将⾃⼰的姓名、准考证号填写清楚,并贴好条形码。
请认真核准条形码上的准考证号、姓名和科⽬。
2.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,再选涂其他答案⽰号,在试题卷上作答⽆效。
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。
例:How much is the shirt?A. 19.15B. 9.15C. 9.18案是B。
1. What is the weather like?A. It’s raining.B. It’s cloudy.C. It’s sunny.2.Who will go to China next month?A. Lucy.B. Alice.C. Richard.3.What are the speaking talking about?A. The men’sB. A filmC. An actor4.Where will the speakers meet?A. In Room 340B. In Room 314C. In Room 2235.Where does the conversnien most probably take place?A. In a restaurantB. In an officeC. At home第⼆节(共15⼩题;每⼩题1.5分,满分22.5分)听下⾯5段对话或独⽩,每段对话或独⽩后有⼏个⼩题,从题中所给的A、B、C三个选项中选出选项,并标在试卷的相应位置。
2008年天津重庆高考英语单项选择题及答案

Ìì½ò¾í1. We'll have a picnic in the park this Sunday _____ it rains or it'svery cold.A. sinceB. ifC. unlessD. until2. My brother is really ____. He often works in his office far intothe night.A. open-mindedB. hard-workingC. self-confidentD. warm-hearted3. --- I just can't stop worrying about the result of the job interview.--- _____. There's nothing you can do now but wait.A. RelaxB. Go aheadC. Go for itD. Goodluck4. _____ their hats into the air, the fans of the winning team let outloud shouts of victory.A. To throwB. ThrownC. ThrowingD. Beingthrown5. To know more about the British Museum, you can use the Internet togo to the library, or _______.A. neitherB. someC. allD. both6. She ______ have left school, for her bike is still here.A. can'tB. wouldn'tC. shouldn'tD. needn't7. The meal over, the managers went back to the meeting room to ______their discussion.A. put awayB. take downC. look overD.carry on8. It was along the Mississippi River _______ Mark Twain spent muchof his childhood.A. howB. whichC. thatD. where9. --- How much do I owe you for lunch?--- ______. It's nothing.A. You're welcomeB. Forget itC. With pleasureD. That's right10. Many Chinese universities provided scholarships for students ______financial aid.A. in favour ofB. in honour ofC. in face ofD. in need of11. Most air pollution is caused by the burning of ____ like coal, gasand oil.A. fuelsB. articlesC. goodsD.products12. The last time we had great fun was _____ we were visiting the WaterPark.A. whereB. howC. whenD. why13. Her shoes ______ her dress; they look very well together.A. suitB. fitC. compareD. match14. He _____ football regularly for many years when he was young.A. was playingB. playedC. has playedD.had played15. At the railway station, the mother waved goodbye to her daughteruntil the train was _______.A. out of sightB. out of reachC. out of orderD. out of place1.C2.B3.A4.C5.D6.A7.D8.C9.B 10. D11.A 12.C 13.D 14.B 15.AÖØÇì¾í21. They will fly to Washington, they plan to stay for two or threedays.A. whereB. thereC. whichD. when22. It was not until midnight they reached the camp site.A. thatB. whenC. whileD. as23. Judy is going to marry the sailor she in Rome last year.A. meetsB. metC. has metD. would meet24. --- Could we see each other at 3 o'clock this afternoon?--- Sorry, let's make it time.A. other'sB. the otherC. anotherD. other25. People in Chongqing are proud of they have achieved in thepast ten years.A. thatB. whichC. whatD. how26. Only when I left my parents for Italy how much I loved them.A. I realizedB. I had realizedC. had I realizedD. did I realize27. In many places in China, bicycle is still poplar means of transportation.A. a; theB. /; aC. the; aD. the; the28. --- May I ask a question after class, Sir?--- , but not during my lunch break.A. I'm sorryB. AnytimeC. CertainlyD. Go ahead29. to reach them on the phone, we sent an email instead.A. FailB. FailedC. To failD. Having failed30. --- I can't find my purse anywhere.--- You have lost it while shopping.A. mayB. canC. shouldD. would31. He as a national hero for winning the first gold medal for his country in the Olympics.A. regardedB. was regardedC. has regardedD. had been regarded32. The artist was born poor, poor he remained all his life.A. andB. orC. butD. so33. All people, they are old or young, rich or poor, have beentrying their best to help those in need since the disaster.A. even ifB. whetherC. no matterD. however34. --- I am afraid I can't return the book to you before Friday.--- .A. Don't be afraidB. Be carefulC. Not at allD. Take your time35. Teenagers their health because they play computer games too much.A. have damagedB. are damagingC. damagedD. will damage21.A 22.A 23.B 24.C 25.C 26.D 27.C 28.C 29.D 30.A31.B 32.A 33.B 34.D 35.B。
2008年高考英语试题(天津卷)

西南财经大学天府学院2009 届Essentials of organization behavior论文题目:关于学生会学生干部满意度调查学生姓名:第3组(陶欢杨高骏孟砾龙翟元立)所在学院:西南财经大学天府学院专业:工商管理指导教师:蒋兰2011 年 12 月 22日目录摘要 (3)第1章导论 (5)1.1 研究背景 (5)1.2研究目的与意义 (5)1.3研究思路与方法 (6)第2章学生会学生干部基础理论综述 (7)2.1工作满意度和工作满意度管理的定义 (7)2.2员工满意度的构成和影响因素 (8)2.3相关理论 (8)第3章学生会基本情况和学生会干部满意度管理现状 (10)3.1 学生会基本情况 (10)3.2 学生会的管理现状 (12)3.3 学生会满意度管理发展展望 (13)第4章学生会干部满意度调查目的、内容 (13)4.1.1学生会干部满意度调查目的 (13)4.1.2学生会干部满意度调查方法 (15)4.2 学生会干部满意度模型的构建和调查问卷设计、发放和回收 (15)4.3学生会干部满意度问卷调查统计分析 (19)4.3满意度级别划分 (26)4.4.1马斯洛需求理论 (28)4.4.2双因素激励理论 (30)4.4.3公平理论 (30)第5章团学会满意度提升途径 (31)5.1 安排具有挑战性的工作 (31)5.2.建立良好的同事关系 (31)5.3.建立完善个人发展规划 (32)5.4.建立完善的工作制度 (32)5.5.建立完善的培训体制 (32)结语 (33)参考文献 (34)摘要学生会一直是连接学院和学生的桥梁,是学院里不可缺少的组织之一。
很多同学一直都向往加入学生会,成为其中的一员。
认为在其中,可以锻炼自己的能力,第一时间了解学院的相关动态,结识志同道合的朋友。
但是,当自己真的加入这个组织的时候,却对学生会的满意度下降。
综起原因,是对学生会的现状不符合自己心目中的状态。
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补充1.电视机的d e =2,当价格1p =500元/台时,1Q =100,若价格下降10%,厂家的收入怎么变化?变化多少?
解:当价格1p =500元时,厂家收入=500*100=50000 当价格下降10%,即价格为450元/台
d e =
价格变动比例
需求量变动比例=2=%10? 解得?=20% 所以需求量变动比例为20%
即需求量上升为120,则厂家收入为450*120=54000元
题1.所有收入用于购买x,y 的一个消费者的效用函数为u=xy ,收入为100,y 的价格为10,当x 的价格由2上升至8时,某补偿收入(为维持效用水平不变所需的最小收入)是多少? 解:最初的预算约束线:2x+2y=100 ① (x p =2) 消费者效用最大化均衡条件:
y
x MU MU =
y x p p x MU =x u d d =y y MU =y
u d d =x 所以得x y =102
② ①和②联立求出
x=25,y=5,u=125
价格变化后为维持原有效用u=125的效用水平,在既有组合(x,y )中所需的收入为m m=8x+10y 与u=125=xy 得到m=8x+1250/x 需求m 最小 即x
m
d d =0 求得x=12.5 y=10 所以m=8x+10y=200
题2.完全竞争行业中,某厂商的成本函数为STC=Q 3
-6Q 2
+30Q+40,设产品价格为66,试求(1)利润投入时产量及利润总额(2)由于竞争市场供求发生变化,由此决定新的价格为30,在新的价格下,厂商是否发生亏损,如果是,最小的亏损额试多少?(3)该厂商在社么情况下才会停止生产?
解:(1) 完全竞争厂商短期利润最大化条件 MR=SMC 且MR=AR=P 所以P=SMC SMC=
Q
d dstc =3Q 2-12Q+30=3(Q-2)2+18 P=66 由P=SMC=3(Q-2)2
+18=66 所以Q=6 ∏=TR-STC=PQ-(Q 3
-6Q 2
+3Q+40)=176
(2) 3Q 2
-12Q+30=30 所以Q=4 ∏= PQ-(Q 3
-6Q 2
+3Q+40)= -8
(3)停止营业点在AVC 的最低点 厂商退出行业的条件P<M in AVC 由STC= Q 3
-6Q 2+3Q+40
可得:TFC=40 TVC= Q 3
-6Q 2
+3Q AVC=
Q
TVC =Q 2-6Q+30=(Q-3)2
+21 所以Q=3 M in AVC=21 只要P<21厂商就停止生产
1已知某消费者每年用于商品1和商品2的收入为540元,两商品的价格分别为P 1 =20元和P 2 =30元,该消费者的效用函数为U=3221X X ,改消费者每年购买这两种商品的数量应各是多少?每年从中获得的总效用是多少?
(1) 由于MU 1 =X1U '=2
2X 3,MU 2 =21X2X X 6U ='
由均衡条件MU 1/MU 2=P 1/P 2 得 2
2X 3/21X X 6=20/30 20X1+30X2=540
由方程组可得X 1=9,X 2=12
(2)将以上最优的商品组合代入效用函数得U=2
21X X 3=3888
2假定某消费者的效用函数为U=q 0.5
+3M ,其中,q 为某商品的消费量,M 为收入。
求: (1)该消费者的需求函数。
(2)该消费者的反需求函数。
(3)当p=1/12,q=4的消费者剩余。
解:(1)MU=
0.5-q 21Q U =∂∂,λ=3M U =∂∂,又MU/P=λ,所以0.5-q 21=3p ,即q=2
p 361
(2) 由需求函数q=
2
p
361
可得反需求函数为p=5.0q 61- (3) CS=
3
1
31q 3
1
4121d q 6140
q 5.04
=-
=∙-∙-⎰
3已知某企业的生产函数为Q=L 2/3K 1/3
,劳动的价格ω=2,资本的价格r=1.求:
(1)当成本C=3000时,企业实现最大产量时的L ,K 和Q 的均衡值 (2)当产量Q=800时,企业实现最小成本时的L ,K 和C 的均衡值。
解:(1)由题意可知,C=2L+K ,Q=3
132
K L ,MP L =313131K L ,MP K =3
1
32
32K L
代入实现最大产量的均衡条件
2r
w
MP MP K L ==得L=K 当C=3000时得L=K=1000,代入生产函数得Q=1000
(2)由(1)可知均衡时K=L ,将Q=800,代入成本函数得C=2400
4假定某厂商的边际成本函数MC=3Q 2
—30Q=100,且生产10单位产量时的总成本为1000。
求:(1)固定成本的值(2)总成本函数,总可变成本函数,以及平均成本函数,平均可变成本函数
解:(1)由于MC (Q )=()Q
TC d Q d
TC ()Q =()()
c Q Q Q dQ Q Q
dQ Q MC ++-=+-=
⎰⎰
10015100303232
为常数)(其中c
又生产10单位产量时的总成本为1000,即TC ()10=1000,解得C=500 因此固定成本值为TFC=500
(2)由(1)得TFC ()500Q 100Q 15Q Q 23++-= 总可变成本函数TVC ()Q =Q 100Q 15Q 23+- 平均成本函数AC ()Q =
()Q
500
10015Q -Q Q Q T C 2+
+= 平均可变成本函数AVC ()Q =
()10015Q -Q Q
Q T VC 2+=
5. 已知某厂商的生产函数为Q=0.5L 1/3K 2/3
,当资本投入量K=50时资本的总价格为500;劳动的价格P L =5。
求(1)劳动的投入函数L=L(Q)(2)总成本函数,平均成本函数和边际成本函数(3)当产品的价格P=100时,厂商获得最大利润的产量和利润各是多少 解:(1)当K=50时50050P K P K K =∙=∙,所以10P K =
由于3
232 -L K L 6
1
MP =
,3
1
-31K K L 6
2MP =,代入均衡条件得
105
P P K L 6
2K
L 61MP MP K
L 31
-3132
32
-K L === 整理的K=L ,将其带入3
23
1 K 0.5L Q =,可得;()2Q Q L = (2)()50010Q 5002Q 550r Q L STC +=+∙=∙+∙=ω
Q /50010SAC += 10=SMC
(3)由(1)可知,K=L ,且已知K=50,所以有L=50,代入3
23
1 K 0.5L Q =有Q=25 又1750500-100Q STC -TR ===π所以利润最大化时产量Q=25利润π=1750
6.假定一国有下列国民收入统计资料: 国内生产总值 4800 总投资 800 净投资 300 消费 3000
政府购买 960 政府预算盈余 30
试计算(1)国内生产净值(2)净出口(3)政府税收减去转移支付后的收入(4)个人可支配收入(5)个人储蓄 解:(1)国内生产净值=国内生产总值-资本消耗补偿,而资本消耗补偿即折旧等于总投资减净投资后的余额,即800-300=500亿美元,因此国内生产净值=4800-500=4300亿美元 (2)从GDP=i+c+g+nx 中可知nx=GDP-c-i-g ,因此,净出口nx=4800-3000-800-960=40亿美元
(3)用BS 表示政府预算赢余,T 代表净税收即政府税收减去政府转移支付后的收入,则有BS=T-g ,从而有=BS+g=30+960=990亿美元
(4)个人可支配收入本来是个人所得税后的余额,本题中没有说明间接税。
公司利润,社会保险税等因素,因此可从国民生产净值中直接得到个人可支配收入,则有yD=NNP-T=4300-990=3310亿美元
(5)个人储蓄S=yD-C=3310-3000=310亿美元
7假设一个只有家庭和企业的两部门经济中,消费c=100+0.8y ,投资i=150—6r,实际货币供给m=150,货币需求L=0.2y —4r (单位都是亿美) 解:(1)求IS 和LM 曲线(2)求品市场和货币市场同时均衡的利率和收入
先求IS 曲线,联立⎪⎩⎪
⎨⎧-=∙+=+=dr e i y c i
c βαy ,得dr e y y -++=βα此时IS 曲线将为
y
d
d e r ∙--
+=
β
α1由题c=100=0.8y,i=150-6r 可得IS 曲线为
y r ∙--+=6
8.016150100即r=250/6-y/30或y=1250-30r 再LM 曲线货币供给m=150货币
需求L=0.2y-4r 均衡时得150=0.2y-4r ,r=-150/4+y/20或y=750+r
(2)当商品市场和货币市场同时均衡时IS 和LM 相较于一点,改点上收入和利率可通过求解IS-LM 方程而得到,即⎩⎨⎧+=-=r
20750y r
301250y 得均衡利率r=10,均衡收入y=950亿美元。