%BF方经济学电大作业3题目及答案(计算题)
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Why does Diana say sorry to peter? A. She has to give up her travel pan. B. She wants to visit another city. C. She needs to put off her test. 9. What does Diana want Peter to do? A. Help her with her study. B. Take a book to her friend. C. Teach a geography lesson. 8娈垫潗鏂欙紝鍥炵瓟绗?0鑷?2棰樸€?10. Why does the man call the woman? A. To tell her about her new job. B. To ask about her job program. C. To plan a meeting with her. 11. Who needs a new flat? A. Alex. B. Andrea. C. Miranda. 12. Where is the woman now? A. In Baltimore. B. In New York. C. In Avon. 9娈垫潗鏂欙紝鍥炵瓟绗?3鑷?6棰樸€?13. What does Jan consider most important when he judges a restaurant? A. Where the restaurant is. B. Whether the prices are low. C. How well the food is prepared. 14. When did Jan begin to write for a magazine? A. After he came back to Sweden. B. Before he wentto the United States. C. As soon as he got his first job in 1982. 15. What may Jan doto find a good restaurant? A. Talk to people in the street. B. Speak to taxi drivers. C. Ask hotel clerks. 16. What do we know about Jan? A. He cooks for a restaurant. B. He travels a lot of his work. C. He prefers American food. 10娈垫潗鏂欙紝鍥炵瓟绗?7鑷?0棰?17. What do we know about the Plaza Leon? A. it鈥檚new building.B. it鈥檚a small town.C. it鈥檚public place. 18. When do parents and children like going to the Plaza Leon? A. Saturday nights. B. Sunday afternoons. C. Fridays and Saturdays. 19. Which street is known for its food shops and markets? A. Via del MarStreet. B. Fernando Street. C. Hernandes Street. 20. Why does the speaker like Horatio Street best? A. It has an old stone surface. B. it is named after a writer. C. It is a famous university.鍒?5鍒嗭級?151鍒嗭紝婊″垎15鍒嗭級21. 鈥曗€昗hy, this is nothing but common vegetable soup! 鈥曗€? madam. It鈥檚our soup of the day. A. Let me see B. So it is C. Don鈥檛mention it D. Neither do I 22. They might just have a place _____ on the writing course 鈥?why don鈥檛you give it a try? A. leave B. left C. leaving D. to leave 23. Try not to cough more than you can ___ since it may cause problems to your lungs. A. check B. allow C. stop D. help 24. If we ____ now to protect the environment, we鈥檒l live to regret it. A. hadn鈥檛acted B. haven鈥檛acted C. don鈥檛act D. won 鈥檛act 25. Tony can hardly boil an egg, still ____ cook dinner. A. less B. little C. much D. more 26. Police have found ____ appears to be the lost ancient statue. A. which B. where C. how D. what 27. When I first met Bryan I didn鈥檛like him, but I ____ my mind. A. have changed B. change C. had changed D. would change 28. The driver wanted to park his car near the roadside but was asked by the police ____. A. not to do B. not to C. not do D. do not 29. The door _____ open, no matter how hard she pushed. A. shouldn鈥檛B. couldn鈥檛C. wouldn鈥檛D. mightn鈥檛30. At the last moment, Tom decided to _____ a new character to make the story seem more likely. A. put up B. put in C. put on D. put off 31. India attained ____ independence in 1947, after _____ long struggle. A. 涓嶅~; a B. the; a C. an; 涓嶅~D. an; the 32. There鈥檚no way of knowing why one man makes an important discovery _____ another man, also intelligent, fails. A. since B. if C. as D. while 33. 鈥淵ou can鈥檛judge a book by its cover,鈥?______. A. as the saying goes old B. goes as the old saying C. as the old saying goes D. goes as old the saying 34. It was a real race ____ time to get the project done. Luckily, we made it. A. over B. by C. for D. against 35. The sunlight is white and blinding, ____ hard-edged shadowson the ground. A. throwing B. being thrown C. to throw D. to be thrown ?202鍒嗭紝婊″垎40鍒嗭級崱涓婂皢璇ラ」娑傞粦銆?I went to a group activity, 鈥淪ensitivity Sunday鈥? which was to make us more 36 the problems faced by disabled people. We were asked to 鈥?37 a disability鈥?for several hours one Sunday. Some members, 38 , chose to use wheelchairs. Others wore sound-blocking earplugs r blindfolds锛堢溂缃╋級. Just sitting in the wheelchair was a 39 experience. I had never considered before how 40 it would be to use one. As soon as I sat down, my 41 made the chair begin to roll. Its wheels were not 42 . Then I wondered where to put my 43 . It took me quite a while to get the metal footrest into 44 . I took my first uneasy look at what was to be my only means of 45 for several hours. For disabled people, 鈥渁dopting a wheelchair鈥?is not a temporary锛堜复鏃剁殑锛?46 . I tried to find a 47 position and thought it might be restful, 48 kind of nice, to be 49 around for a while. Looking around, I 50 I would have to handle the thing myself? My hands started to ache as I 51 the heavy metal wheels. I came to know that controlling the 52 of the wheelchair was not going to be a(n) 53 task. My wheelchair experiment was soon 54 . It made a deep impression on me. A few hours of 鈥渄isability鈥?gave me only a taste of the 55 , both physical and mental, that disabled people must overcome. 36. A. curious about B. interested in C. aware of D. careful with 37. A. cure B. prevent C. adopt D. analyze 38. A. instead B. strangely C.as usual D. like me 39.A. learningB. workingC. satisfyingD. relaxing 40. A. convenient B. awkward C. boring D. exciting 41. A. height B. force C. skill D. weight 42. A. locked B. repaired C. powered D. grasped 43. A. hands B. feet C. keys D. handles 44. A. place B. action C. play D. effect 45. A. operation B. communication C. transportation D. production 46. A. exploration B. education C. experiment D. entertainment 47. A. flexible B. safe C.starting D. comfortable 48. A. yet B. just C. still D. even 49. A. shown B. pushed C. driven D. guided 50. A. realized B. suggested C. agreed D. admitted 51. A. lifted B. turned C. pressed D. seized 52. A. path B. position C. direction D. way 53. A. easy B. heavy C. major D. extra 54. A. forgotten B. repeated C. conducted D. finished 55. A. weaknesses B. challenges C. anxieties D. illnesses В锛堝叡涓よ妭锛屾弧鍒?0鍒嗭級?锛堝叡153鍒嗭紝婊″垎45鍒嗭級A Some people will do just about anything to save money. And I am one of them. Take my family鈥檚last vacation. It was my six-year-old son鈥檚winter break form school, and we were heading home from Fort Lauderdale after a weeklong trip. The flight was overbooked, and Delta, the airline, offered us $400 per person in credits to give up our seats and leave the next day. I had meetings in New York锛孲o I had to get back. But that didn't mean my husband and my son couldn't stay. I took my nine-month-old and took off for home. The next day, my husband and son were offered more credits to take an even later flight. Yes, I encouraged鈥昽kay, ordered鈥晅hem to wait it out at the airport, to "earn" more Delta Dollars. Our total take: $1,600. Not bad, huh? Now some people may think I'm a bad mother and not such a great wife either. But as a big-time bargain hunter, I know the value of a dollar. And these days, a good deal is something few of us can afford to pass up. I've made living looking for the best deals and exposing 锛堟彮闇诧級the worst tricks. I have been the consumer reporter of NBC's Today show for over a decade. I have written a couple of books including one titled Tricks of the Trade: A Consumer Survival Guide. And I really do what I believe in. I tell you this because there is no shame in getting your money鈥檚worth. I鈥檓also tightfisted when it comes to shoes, clothes for my children, and expensive restaurants. But I wouldn't hesitate to spend on a good haircut. It keeps its shape longer, and it's the first thing people notice. And I will also spend on a classic piece of furniture. Quality lasts. 56. Why did Delta give the author's family credits? A. They took a later flight. B. They had early bookings. C.Their flight had been delayed. D. Their flight had been cancelled. 57. What can we learn about the author? A. She rarely misses a good deal. B. She seldom makes a compromise. C. She is very strict with her children. D. She is interested in cheap products. 58. What does the author do? A. She's a teacher. B. She's a housewife. C. She's a media person. D. She's a businesswoman. 59. What does the author want to tell us? A. How to expose bad tricks. B. How to reserve airline seats. C. How to spend money wisely. D. How to make a business deal. B They baby is just one day old and has not yet left hospital. She is quiet but alert . Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze锛堝嚌瑙嗭級starts to lose its focus 鈥?until a third, with three black spots, is presented. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world? Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise 锛堝悓鏍峰湴锛?when the researchers started with drumbeats and moved to spots. 60. The experiment described in Paragraph 1 is related to the baby鈥檚__. A. sense of hearing B. sense of sight C. sense of touch D. sense of smell61. Babies are sensitive to the change in______. A. the size of cards B. the colour of pictures C. the shape of patterns D. the number of objects 62. Why did the researchers test the babies with drumbeats? A. To reduce the difficulty of the experiment. B. To see how babies recognize sounds. C. To carry their experiment further. D. To keep the babies鈥?interest. 63. Where does this text probably come from? A. Science fiction. B. Children鈥檚literature. C. An advertisement. D. A science report. C It happened to me recently. I was telling someone how much I had enjoyed reading Barack Obama鈥檚Dreams From My Father and how it had changed my views of our President. A friend I was talking to agreed with me that it was, in his words, 鈥渁brilliantly 锛堢簿褰╁湴锛墂ritten book鈥? However, he then went on to talk about Mr. Obama in a way which suggested he had no idea of his background at all. I sensed that I was talking to a book liar. And it seems that my friend is not the only one. Approximately two thirds of people have lied about reading a book which they haven鈥檛. In the World Book Day鈥檚鈥淩eport on Guilty Secrets鈥? Dreams From My Father is at number 9. The report lists ten books, and various authors, which people have lied about reading, and as I鈥檓not one to lie too often (I鈥檇hate to be caught out), I鈥檒l admit here and now that I haven 鈥檛read the entire top ten. But I am pleased to say that, unlike 42 percent of people, I have read the book at number one, George Orwell鈥檚1984. I think it鈥檚really brilliant. The World Book Day report also has some other interesting information in it. It says that many people lie about having read Jane Austen, Charles Dickens, Fyodor Dostoevsky (I haven鈥檛read him, but haven鈥檛lied about it either) and Herman Melville. Asked why they lied, the most common reason was to 鈥渋mpress鈥?someone they were speaking to. This could be tricky if the conversation became more in锟紺depth! But when asked which authors they actually enjoy, people named J. K. Rowling, John Grisham, Sophie Kinsella (ah, the big sellers, in other words). Forty-two percent of people asked admitted they turned tothe back of the book to read the end before finishing the story (I鈥檒l come clean: I do this and am astonished that 58 percent said they had never done so). 64. How did the author find his friend a book liar? A. By judging his manner of speaking. B. By looking into his background. C. By mentioning a famous name. D. By discussing the book itself. 65. Which of the following is a 鈥済uilty secret鈥?according to the World Book Day report? A. Charles Dickens is very low on the top-ten list. B. 42% of people pretended to have read 1984. C. The author admitted having read 9 books. D. Dreams From My Father is hardly read. 66. By lying about reading, a person hopes to .A. control the conversationB. appear knowledgeableC. learn about the bookD. make more friends 67. What is the author鈥檚attitude to 58% of readers? A. Favorable. B. Uncaring C. Doubtful D. Friendly D The National Gallery Description: The National Gallery is the British national art museum built on the north side of Trafalgar Square in London. It houses a diverse collection of more than 2,300 examples of European art ranging from 13th-century religious paintings to more modern ones by Renoir and Van Gogh. The older collections of the gallery are reached through the main entrance while the more modern works in the East Wing are most easily reached from Trafalgar Square by a ground floor entrance Layout: The modern Sainsbury Wing on the western side of the building houses 13th- to15th-century paintings, and artists include Duccio, Uccello, Van Eyck, Lippi, Mantegna, Botticelli and Memling. The main West Wing houses 16th-century paintings, and artists include Leonardo da Vinci, Cranach, Michelangelo, Raphael, Bruegel, Bronzino, Titan and Veronese. The North Wing houses 17th-century paintings, and artists include Caravaggio, Rubens, Poussin, Van Dyck, Velazquez, Claude and Vermeer. The East Wing houses 18th- to early 20th-century paintings, and artists include Canaletto, Goya, Turner, Constable, Renoir and Van Gogh. Opening Hours: The Gallery is open every day from 10am to 6pm (Fridays 10am to 9pm) and is free, but charges apply to some special exhibitions. Getting There: Nearest underground stations: Charing Cross(2-minute walk), Leicester Square (3-minute walk), Embankment (7-minute walk), and Piccadilly Circus (8-minute walk). 68. In which century鈥檚collection can you see religious paintings? A. The 13th. B. The 17th. C. The 18th. D. The 20th. 69. Where are Leonardo da Vinci鈥檚works shown? A. In the East Wing. B. In the main West Wing. C. In the Sainsbury Wing. D. In the North Wing. 70. Which underground station is closest to the National Gallery? A. Piccadilly Circus. B. Leicester Square. C. Embankment. D. Charing Cross.?锛堝叡53鍒嗭紝婊″垎15鍒嗭級?Business is the organized approach to providing customers with the goods and services they want. The word business also refers to an organization that provides these goods and services. Most businesses seek to make a profit锛堝埄娑︼級鈥?that is, they aim to achieve income that is more than the costs of operating the business. 71 Commonly called nonprofits, these organizations are primarily nongovernmental service providers. 72 Business management is a term used to describe the techniques of planning, direction, and control of the operations of a business. 73 One is the establishment锛堝埗瀹氾級of broad basic policies with respect to production; sales; the purchase of equipment, materials and supplies; and accounting. 74 The third relates to the establishment of standards of work in all departments. Direction is concerned primarily with supervision锛堢洃绠★級and guidance by the management in authority. 75 A. Control includes the use of records and reports to compare actual work with the set standards for work. B. In this connection there is the difference between top management and operative management. C. Examples of nonprofit business include such organizations as social service agencies and may hospitals. D. However, some businesses only seek to earn enough to cover their operating costs. E. The second aspect relates to the application of these policies by departments. F. Inthe theory of business management, organization has two main aspects. G. Planning in business management has three main aspects. 绗琁I鍗?娉ㄦ剰浜嬮」锛?鐢?.5湰璇曞嵎涓婃棤鏁堛€?鍐欎綔锛堝叡涓ら〉锛屾弧鍒?5鍒嗭級?101鍒嗭紝婊″垎10鍒嗭級?0?鈭э級锛屽苟鍦ㄥ叾涓嬮潰鍐欏嚭璇ュ姞鐨勮瘝銆?鍒犻櫎锛氭妸澶氫綑鐨勮瘝鐢ㄦ枩绾匡紙\锛夊垝鎺夈€??娉ㄦ剰锛?.2. ?011澶勮捣锛変笉璁″垎銆?I hardly remember my grandmother. She used to holding me on her knees and sing old songs. I was only four when she passes away. She is just a distant memory for me now. I remember my grandfather very much. He was tall, with broad shoulder and a beard that turned from black toward gray over the years. He had a deep voice, which set himself apart from others in our small town, he was strong and powerful. In a fact, he even scared my classmates away during they came over to play or do homework with me. However, he was the gentlest man I have never known. ?涔﹂潰琛ㄨ揪锛堟弧鍒?5鍒嗭級鍋囧畾浣犳槸鏉庡崕Peter鍐欏皝淇★紝鍛婅瘔浠栦綘鍙斿彅鏉庢槑灏嗗幓浠栨?埓鐪奸暅CA985 鍒拌揪锛?鏈?鏃ヤ笂鍗?1:30 娉ㄦ剰锛?. 璇嶆暟100宸﹀彸锛?. 3.?精品试题资料2013閫夋嫨棰樼瓟妗?1鈥? ACACB 6-10 BBABA 11-15 BACAA 16-20 BCBCC 21-25 BBDCA 26-30 DABCB 31-35 ADCDA 36-40 CCDAB 41-45 DABAC 46-50 CDDBA 51-55 BCADB 56-60 AACCB 61-65 DCDDB 66-70 BCABD 71-75 DCGEA 闈為€夋嫨棰樼瓟妗?垎锛?I hardly remember my grandmother. She used to holding me on her knees and sing old songs. I was only hold four when she passes away. She is just a distant memory for me now. passed I remember my grandfather very much. He was tall, with broad shoulder and a beard that turned from black well / clearly shoulders toward gray over the years. He had a deep voice, which set himself apart from others in our small town, e was to / into him and strong and powerful. In a fact, he even scared my classmates away during they came over to play or do when homework with me. However, he was the gentlest man I have never known. ever One Possible Version Dear Peter, How are you doing? I鈥檓writing to tell you that my uncle Li Ming is going to your city for a conference, and I鈥檝e asked him to bring you the Chinese painting you鈥檝e asked for before. Also, I鈥檇like you to do me a favor. Would you please meet my uncle at the airport and take him to his hotel since this is his first visit to the U.S.? Thank you in advance! His flight number is CA985, and it will arrive at 11:30 am, August 6. My uncle is tall and he is wearing glasses. And he will be in a blue jacket. Looking forward to your reply. Yours, Li Hua。
2017年⼀年级语⽂下册《写字表》⽣字组词(⼈教版)2017年⼀年级语⽂下册《写字表》⽣字组词(⼈教版)涓€骞?绾?鍏?鐝?濮撳悕锛?瀛﹀彿锛?璇嗗瓧1 鏄ワ紙鏄ユ棩锛夛紙鏄ヨ妭锛夛紙绔嬫槬锛夛紙鏄ュぉ锛?椋庯紙澶ч?鑺憋紙鑺辫崏锛夛紙鑺辨湹锛夛紙鑺辩敓锛夛紙寮€鑺憋級椋烇紙椋炶櫕锛夛紙椋炴満锛夛紙椋炶蛋锛夛紙椋炲ぉ锛?鍏ワ紙鍔犲叆锛夛紙鍑哄叆锛夛紙鍏ラ棬锛夛紙鍏ュ彛锛?2 濮撴皬姝?濮擄紙浠€锛堜粈涔堬級锛堜负浠€涔堬級涔鍙岋紙鍙屼汉锛夛紙锛夛紙鍥藉湡锛?鐜嬶紙鐜嬪瓙锛夛紙鐜嬪悗锛夛紙鍥界帇锛夛紙濂崇帇锛?鏂癸紙澶ф柟锛夛紙鍙屾柟锛夛紙瀵规柟锛夛紙鍥涙柟锛?3 灏忛潚铔?闈掞紙闈掕洐锛夛紙闈掑ぉ锛夛紙闈掕崏锛夛紙闈掓槬锛?娓咃紙娓呮槑锛夛紙娓呮棭锛夛紙娓呯櫧锛夛紙涓€娓呬簩鐧⽄級姘旓紙澶╂皵锛夛紙鍔涙皵锛夛紙鍜屾皵锛夛紙姝f皵锛?鏅达紙鏅村ぉ锛夛紙鏅存棩锛夛紙鏅⼨┖锛夛紙闆ㄨ繃澶╂櫞锛?鎯咃紙鍙嬫儏锛夛紙鍚屾儏锛夛紙蹇冩儏锛夛紙浜烘儏锛?璇凤紙璇烽棶锛鐢燂紙瀛︾敓锛夛紙鑺辩敓锛夛紙鐢熸皵锛夛紙鍑虹敓锛?4 鐚滃瓧璋?瀛楋紙鐢熷瓧锛夛紙瀛楃敾锛夛紙鍚嶅瓧锛夛紙鏂囧瓧锛?宸︼紙宸﹀彸锛夛紙宸︽墜锛夛紙宸﹁€筹級锛堝乏杈癸級鍙筹紙鍙⾍墜锛夛紙鍙宠€筹級锛堝乏鍙筹級锛堝彸杈癸級鏃讹紙灏忔椂锛夛紙鏃堕棿锛夛紙鏈夋椂锛夛紙鍗堟椂锛?锛堝姩杞︼級涓囷紙涓囬噷锛夛紙鍗冧竾锛夛紙涓囧勾锛夛紙鍗佷竾锛?璇炬枃1 鍚冩按涓嶅繕鎸栦簳浜?鍚冿紙鍚冨姏锛夛紙鍚冭嫤锛夛紙鍙e悆锛夛紙灏忓悆锛?у?涓伙紙鍏姹燂紙闀挎睙锛夛紙姹熸按锛夛紙姹熸渤锛夛紙杩囨睙锛?浣忥紙浣忓彛锛夛紙浣忔埛锛夛紙浣忔墜锛夛紙灞呬綇锛?i病绌猴級m貌锛堝悶娌★級锛堝嚭娌★級笂锛?2 浼氾紙澶т細锛夛紙寮€浼氾級锛堜笉浼氾級锛堝伐浼氾級璧帮紙璧扮伀锛夛紙璧板紑锛夛紙璧板姩锛夛紙鍑鸿蛋锛?鍖楋紙鍖楄竟锛夛紙鍖楁柟锛夛紙鍖楁枟锛夛紙涓滃寳锛?锛夛紙涓婁含锛?骞匡紙骞垮ぇ锛夛紙骞夸箟锛夛紙骞垮憡锛夛紙骞夸笢锛?3涓?杩囷紙杩囧叧锛夛紙杩囧幓锛夛紙杩囩伀锛夛紙杩囪妭锛?鍚勶紙鍚勫湴锛夛紙?绉峼h菕ng級锛堢伀绉嶏級zh貌ng鏍凤紙鏍锋湰锛夛紙鏍峰瓙锛夛紙鏍峰搧锛夛紙鑺辨牱锛?夛紙澶т紮锛?浼达紙鐜╀即锛夛紙浼欎即锛夛紙鍚屼即锛?紙杩欐牱锛夛紙杩欒竟锛夛紙杩欎箞锛?4?锛夛紙澶曢槼锛?鏍★紙鏍¢暱锛夛紙瀛︽牎锛夛紙鏍¢棬锛夛紙姣嶆牎锛?閲戯紙閲戦奔锛夛紙浜旈噾锛夛紙閲戝瓙锛夛紙閲戝北锛?绉嬶紙绉嬪ぉ锛夛紙绉鍥狅紙涓诲洜锛夛紙鍥犱负锛夛紙鍥犳灉锛夛紙鍘熷洜锛?涓簑茅i锛堜负浜猴級w猫i锛堜负浣曪級锛堜负浜嗭級锛堝洜涓猴級锛堜负浠€涔堬級璇炬枃5浠栵紙浠栦滑锛夛紙浠栨棩锛夛紙浠栦埂锛夛紙浠栦汉锛?娌筹紙灞辨渤锛夛紙娌⾍按锛夛紙姹熸渤锛夛紙闀挎渤锛?璇达紙灏夛紙涔熷ソ锛夛紙绌虹┖濡備篃锛?鍦癲⽭锛堝湡鍦帮級锛堝ぇ鍦帮級锛堝湴涓嬶級锛堝湴鏂癸級de锛堥珮鍏村湴璇达級鍝ワ紙澶у摜锛夛紙浜屽摜锛夛紙鍝ュ摜锛夛紙鍝ヤ滑锛?6 鏍戝拰鍠滈箠鍗曪紙鍗曚汉锛夛紙鍗曟墜锛夛紙鍗曞厓锛夛紙涔﹀崟锛?鎷涳紙鎷涙墜锛夛紙鍛硷紙楂樺懠锛夛紙娆㈠懠锛夛紙鍛煎0锛夛紙鍛煎彨锛??7 鎬庝箞閮藉揩涔?鐜╋紙濂界帺锛夛紙鐜╀箰锛夛紙鐜╃伀锛夛紙鐜╂按锛?寰褰揹膩ng锛堝綋蹇冿級锛堝綋骞达級锛堝綋鏃讹級锛堝綋澶╋級d脿ng锛堜笂褰擄級闊筹紙闊充箰锛夛紙鍙i煶锛夛紙鎷奸煶锛夛紙娉ㄩ煶锛?琛寈铆ngh谩ng璇炬枃8 ?鎬濓紙鎬搴婏紙鏈ㄥ簥锛夛紙搴婂ご锛夛紙澶у簥锛夛紙鍙屼汉搴婏級鍓嶏紙鍓嶅悗锛夛紙浠ュ墠锛夛紙浠庡墠锛夛紙鍓嶅ぉ锛?鍏夛紙鏈堝厜锛夛紙闃冲厜锛夛紙鍏⼢ご锛夛紙鍏夋槑锛?浣庯紙浣庡ご锛夛紙浣庨煶锛夛紙楂樹綆锛夛紙浣庝笁涓嬪洓锛?鏁咃紙鏁呬埂锛夛紙鏁呭浗锛夛紙鏁呬汉锛夛紙鏁呭湡锛?涔★紙涔¢煶锛夛紙鍚屼埂锛夛紙鎬濅埂锛夛紙姘翠埂锛?9 澶滆壊鑹诧紙灞辫壊锛夛紙澶╄壊锛夛紙绾㈣壊锛夛紙鐧借壊锛??鐪嬶紙鐪鐖⾰紙鐖哥埜锛?鏅氾紙鏅氫笂锛夛紙鏃╂櫄锛夛紙鏅氫細锛?锛堟櫄瀹夛級绗戯紙澶х夛紙鐜╃瑧锛夛紙濂界瑧锛?嶆潵锛?10 ??鑺傦紙鏄ヨ妭锛夛紙杩囪妭锛夛紙鑺傛棩锛夛紙鑺傜洰锛?鍙讹紙绾㈠彾锛夛紙绔瑰彾锛夛紙鍙跺瓙锛夛紙鏍戝彾锛?绫筹紙澶х背锛夛紙灏忕背锛夛紙鐜夌背锛夛紙绫冲昂锛??鍒唂膿n锛堝垎寮€锛夛紙鍒嗘墜锛夛紙鏄ュ垎锛?F猫n锛堣繃鍒嗭級锛堟湰鍒嗭級璞嗭紙璞嗗瓙锛夛紙绾㈣眴锛夛紙鍦熻眴锛夛紙澶ц眴锛?11 褰╄櫣閭o紙閭f牱锛夛紙閭i噷锛夛紙閭d釜锛夛紙閭d箞锛?鐫€zhe锛堢湅鐫€锛夛紙绗戠潃锛夛紙鐜╃潃锛墇hu贸锛堢┛鐫€锛?zh谩o鍒帮紙楂橈紙楂樺北锛夛紙楂樺ぇ锛夛紙楂樹腑锛夛紙楂樻墜锛?鍏磝墨ng锛堝叴濂嬶級锛堝叴鍔烇級x⽭ng锛堥珮鍏达級锛堟壂鍏达級锛堝叴澶达級锛堥珮楂樺叴鍏达級鍗冿紙绉嬪崈锛夛紙鍗冪背锛夛紙鍗冧竾锛夛紙涓囨按鍗冨北锛?鎴愶紙鎴愪汉锛夛紙鎴愰暱锛夛紙鎴愭灉锛夛紙鎴愬ぉ锛夛紙鎴愮珛锛?璇嗗瓧 5 鍔ㄧ墿鍎挎瓕杩凤紙鍏ヨ糠锛夛紙閫狅紙閫犲彞锛夛紙浜洪€狅級锛堟墦閫狅級锛堜豢閫狅級杩愶紙杩愬姩锛夛紙杩愭皵锛夛紙杩愮敤锛夛紙璧拌繍锛?姹狅紙灏忔睜锛夛紙姘存睜锛夛紙姹犲瓙锛夛紙鐢垫睜锛?娆㈠揩锛夛紙娆㈢瑧锛夛紙娆㈠懠锛?缃戯紙涓婄綉锛夛紙缃戝惂锛夛紙鐢电綉锛夛紙澶╃綏鍦扮綉锛?6 ?鍙わ紙鍙や粖锛夛紙鍗冨彜锛夛紙鍙ゆ枃锛夛紙鍙や功锛?鍑夛紙鍑⼢揩锛夛紙娓呭噳锛夛紙鍑?缁嗭紙缁嗗皬锛夛紙缁嗛洦锛夛紙缁嗛暱锛夛紙缁嗗彾锛?澶曪紙澶曢槼锛夛紙鍓鏉庯紙鏉庡瓙锛夛紙妗冩潕锛夛紙琛屾潕锛夛紙鐡滅敯鏉庝笅锛??7 鎿嶅満涓?鎵擄紙鎵撳伐锛夛紙鎵撳紑锛夛紙鍗曟墦锛夛紙鍙屾墦锛?鎷嶏紙鎷嶆墜锛夛紙鎷嶆墦锛夛紙鑺傛媿锛夛紙鎵撴媿瀛愶級璺戯紙闀胯窇锛夛紙璧疯窇锛夛紙灏忚窇锛夛紙璺戣溅锛?瓒筹紙鍙岃冻锛夛紙鎵嬭冻锛夛紙涓嶈冻锛夛紙绔嬭冻锛?澹帮紙澹伴煶锛夛紙椋庡0锛夛紙鏃犲0锛夛紙鍥炲0锛?紙浣撲細锛?8 浜轰箣鍒?涔嬶紙涔嬪墠锛夛紙涔嬪悗锛夛紙涔嬮棿锛夛紙鎬讳箣锛??杩戯紙杩戞棩锛夛紙杩戞潵锛夛紙杩戝勾锛夛紙浜茶繎锛?涔犲瓧锛夛紙涔犳皵锛?杩滐紙杩滄柟锛夛紙杩滃彜锛夛紙杩滃ぇ锛夛紙闀胯繙锛?鐜夛紙鐜夌煶锛夛紙鐜夌背锛夛紙瀹濈帀锛夛紙鐧界帀锛?涔夛紙鍚屼箟锛夛紙杩戜箟锛夛紙涔⼢伐锛夛紙姝d箟锛?璇炬枃12 鍙よ瘲浜閲囷紙鏂囬噰锛夛紙椋庨噰锛夛紙绁為噰锛夛紙閲囩敤锛?鏃狅紙鏃犱汉锛夛紙鏃犲姏锛夛紙鏃犲績锛夛紙鏃犲弻锛?鏍戯紙鏋滄爲锛夛紙鏍戞湪锛夛紙鏍戝彾锛夛紙鏍戝共锛??灏栵紙灏栧瓙锛夛紙灏栧垁锛夛紙灏栧彨锛夛紙蹇冨皷锛?瑙抝i菐o锛堢墰瑙掞級锛堢緤瑙掞級锛堜笁瑙掑舰锛?ju13 鑽峰彾鍦嗗渾鏈猴紙椋炴満锛夛紙鏈哄叧锛夛紙鏈轰細锛夛紙鍙告満锛?鍚庡彴锛??楸硷紙灏忛奔锛夛紙楸煎ご锛夛紙鏈ㄩ奔锛夛紙鎵撻奔锛?鏈碉紙鑺辨湹锛夛紙浜戞湹锛夛紙涓€鏈佃姳锛?缇庯紙缇庝附锛夛紙缇庡ソ锛夛紙缇庡伐锛夛紙缇庢湳锛?14 瑕佷笅闆ㄤ簡級鍛€锛堝搸鍛€锛?杈癸紙鏃犺竟锛夛紙涓滆竟锛夛紙鑺辫竟锛夛紙杈瑰叧锛?鍛?ne鍛?n铆锛堝鍚楋紙鍦ㄥ悧锛夛紙濂藉悧锛夛紙琛屽悧锛?鍚э紙濂藉惂锛夛紙鍚у彴锛?鍔狅紙鍔犳硶锛夛紙鍔犱笂锛夛紙鍔犲叆锛?锛堝姞宸ワ級璇炬枃15娆★嚭锛夛紙瀵绘壘锛夛紙鎵鹃綈锛?骞筹紙骞冲畨锛夛紙骞⾍棩锛夛紙骞⾍椂锛夛紙骞冲垎锛?鍔烇紙鍔炴硶锛夛紙鍔炲叕锛夛紙寮€鍔烇級锛堜富鍔烇級璁╋鍖咃紙鍖呭瓙锛夛紙涔﹀寘锛夛紙鎵撳寘锛夛紙娌欏寘锛?16 涓€鍒嗛挓閽燂紙鏃堕挓锛夛紙閽熺偣锛夛紙閽熷ご锛夛紙闂归挓锛?鍏冿紙鍏冩湀锛夛紙鍏冩棪锛夛紙鍗曞厓锛夛紙鍏?娲楋紙娲楁墜锛夛紙姘存礂锛夛紙骞叉礂锛夛紙鍐叉礂锛?鍏憋紙涓€宸诧紙宸茬粡锛夛紙鑰屽凡锛夛紙宸叉晠锛夛紙鏃╁凡锛?缁忥紙缁忚繃锛夛紙缁忎功锛夛紙缁忔墜锛夛紙姝g粡锛?17 鍔ㄧ墿鐜嬪浗寮€澶т細瑕亂膩o y脿o锛堜笉瑕侊級锛堝彧瑕侊級锛杩烇紙杩為暱锛夛紙杩炴棩锛夛紙杩炲繖锛夛紙杩為槦锛?鐧撅紙鐧句竾锛夛紙鐧惧悎锛夛紙鐧捐崏锛夛紙鐧惧彾锛?杩榟u谩n锛堝綊杩橈級锛堣繕鎵嬶級h谩i锛堣繕鏈夛級锛堣繕濂⽄級锛堣繕琛岋級锛堣鑸岋紙鑸屽ご锛夛紙闀胯垖锛夛紙瀛﹁垖锛夛紙鍙h垖锛?鐐癸紙鏃╃偣锛夛紙闆ㄧ偣锛夛紙鐐瑰績锛夛紙鐐瑰瓙锛?18 灏忕尨瀛愪笅灞?鍧楋紙鐭冲潡锛夛紙鍦熷潡锛夛紙鍧楀ご锛夛紙鏂瑰潡锛?闈烇紙闈炲垎锛夛紙闈炲⽗锛甯⾰紙骞冲⽗锛夛紙甯稿勾锛夛紙骞冲⽗锛夛紙鏃ュ⽗锛?寰€锛堝線鏃ワ級锛堝線甯⾰級锛堣繃寰€锛夛紙浜ゅ線锛?鐡滐紙瑗跨摐锛夛紙鍦扮摐锛夛紙鐡滃瓙锛夛紙鍗楃摐锛?杩涳紙杩涘嚭锛夛紙杩涘寲锛夛紙杩涘彛锛夛紙杩涘叆锛夛紙闀胯繘锛夛紙涓婅繘锛?绌簁艒ng锛堝ぉ绌猴k貌ng锛堢┖鐧⽄級锛堢┖鍦帮級锛堟湁绌猴級璇炬枃19 鐥咃紙鐪嬬梾锛夛紙鐥呬汉锛夛紙鐢熺梾锛夛紙蹇冪梾锛?骞瞘膩n锛堝共鍑€锛夛紙骞叉灉锛夛紙骞茶礉锛夛紙椋庡共锛?g脿n锛堝疄骞诧鏄燂紙鏄熺伀20 鍜曞挌鍚搙i脿锛堟儕鍚擄級锛堝悡浜猴級锛堝悡涓€璺筹級h猫锛堟亹鍚擄級鎬曪紙涓嶆€曪級锛堝彲鎬曪級锛堟€曚汉锛夛紙鐢熸€曪級璺燂紙璺熷ご锛夛紙璺熶笂锛夛紙璺熸枟锛夛紙璺熶粠锛?瀹讹紙澶у?缇璞★紙澶ц薄锛夛紙姘旇薄锛夛紙涓囪薄锛夛紙璞$墮锛?閮絛奴d艒u21 ?鎹夛紙鎹夎櫕锛夛紙娲绘崏锛夛紙鎹変綇锛夛紙鎹夋嬁锛?鏉★紙闈㈡潯锛夛紙閲戞潯锛夛紙瀛楁潯锛夛紙鏉′欢锛?櫕锛?濮愶紙澶у?锛夛紙鎮ㄥソ锛?鑽夛紙鑺辫崏锛夛紙姘磋崏锛夛紙灏忚崏锛夛紙鑽夋湪锛?鎴匡紙鎴垮瓙锛夛紙涔︽埧锛夛紙闂ㄦ埧锛夛紙鎴块棿锛?。
西方经济学电大作业1题目及答案
计算题:
1.己知某商品的需求方程和供给方程分别为:QD=14-3P,QS=2+6P;试求该商品的均衡价格,以及均衡时的需求价格弹性和供给价格弹性。
(参考分15分)
解:因均衡价格由需求曲线和供给曲线的交点决定,即QD=QS 时决定均衡价格。
所以由14-3 P=2+6 P ,解得:P=1. 33 ,即为均衡价格;
代入需求方程(或供给方程):QD=14-3×1.33≈10,即均衡量为QD=QS=10
根据ED=-(△QD/△P)×(P/QD)=-(dQD/dP)×(P/QD)
故对需求方程的P求导:dQD/dP=-3 ,则:ED=3×1.33/10=0.399
同理,根据ES=(△QS/△P)×(P/QS)=(dQS/dP)×(P/QS)
故对供给方程的P求导:dQS/dP=6,则:ES=6×1.33/10=0.798
注:因均衡点是一个点,故△P变化趋于零,可对函数求导求得
2.如果消费者张某的收入为270元,他在商品X和商品Y的无差异曲线上斜率为dY/dX=-20/Y的点上实现均衡。
已知X和Y的价格分别为PX=2,PY=5,那么以此时张某将消费X和Y各多少?(参考分12分)
解:因为商品边际替代率 MRSXY=-(dY/dX),已知 dY/dX=-20/Y ,
又因为消费者均衡条件为 MRSXY=PX/PY ,已知 PX=2,PY=5,
所以得:20/Y=2/5,解得:Y=50
因为消费者购买商品的限制条件为 PXX+PYY=M,已知 M=270,
所以得:2X+5×50=270,解得:X=10
因此,张某将消费商品X为10单位,商品Y为50单位。
3.如果消费者张某消费X和Y两种商品的效用函数U=X2 Y2 ,张某收入为500元,X和Y的价格分别为PX=2元,PY=5元,求:
⑴ .张某的消费均衡组合点。
⑵ . 若政府给予消费者消费X以价格补贴,即消费者可以原价格的50%购买X ,则张某将消费X和Y各多少?
⑶ . 若某工会愿意接纳张某为会员,会费为100元,但张某可以50%的价格购买X ,则张某是否应该加入该工会?(参考分20分)
解:⑴ . 因为消费者均衡条件为:MUX/PX=MUY/PY
分别对效用函数X 、Y求导得:MUX=2XY2 ,MUY=2X 2 Y,已知PX=2,PY=5
所以,2XY2/2=2X 2 Y/5,解得:Y=0.4X 。
又因为消费者购买商品的限制条件为:PXX+PYY=M ,已知M=500
所以,2X+5×0.4X=500,解得:X=125
则有,2×125+5Y=500,解得:Y=50
因此,张某消费均衡组合点为:X商品125单位,Y商品50单位。
⑵. 据题意PX=2×50%=1,已知PY=5,已求MUX=2XY2,MUY=2X 2 Y
所以,2XY3/1=2X2Y/5 ,解得:Y=0.2X
则:X+5×0.2X=500 ,解得:X=250 ;250+5Y=500 ,解得:Y=50
因此,张某将消费X商品250单位,Y商品50单位。
⑶. 据题意张某消费X和Y的收入M=500-100=400元,PX=2×50%=1已知PY=500,则由⑵题解结果可知Y=0.2X
所以,X+5×0.2X=400 ,解得:X=200 ;200+5Y=400 ,解得:Y=40
计算结果表明,若加入工会缴纳会费后,张某消费X和Y的数量均减少,其总效用将下降,因此不应该加入该工会。
4.某钢铁厂的生产函数为Q=5LK,:G其中Q为该厂的产量,L为该厂每期使用的劳动数量,K为该厂每期使用的资本数量。
如果每单位资本和劳动力的价格分别为2元和1元,那么每期生产40单位的产品,该如何组织生产?(参考分15分)
解:因为两种生产要素最佳组合条件是:MPL/PL=MPK/PK
分别对生产函数中L和K求导:MPL=5K ,MPK=5L ,已知PL=1,PK=2
所以,5K/1=5L/2 ,解得:L=2K;已知Q=40
代入生产函数得:40=5×2K×K ,解得:K=2 故由:40=5×L×2 ,解得:L=4
因此,每期生产40单位,该厂应投入劳动力4个单位,资本2个单位。
5.假设某企业的边际成本函数为 MC=3Q2+4Q+80 ,当生产3单位产品时,总成本为290。
试求总成本函数,可变成本函数和平均成本函数。
(参考分10分)
解:由边际成本函数含义可知,它是总成本函数的导数,
故反推出总成本函数为:Q3+2Q2+80Q ,
从式中可知是可变成本函数:TVC=Q3+2Q2+80Q 。
当生产3单位产时,可变成本为:TVC=33+2×32+80×3=285
故不变成本为:TFC=TC-TVC=290-285=5
所以,总成本函数:TC=TFC+TVC=5+3Q3+2Q2+80Q
可变成本函数:TVC=3Q3+2Q2+80Q
平均成本函数:AC=5/Q+Q2+2Q+80
6.假定某完全竞争的行业中有500家完全相同的厂商,每个厂商的成本函数为
STC=0.5q2+q+10
⑴ . 求市场的供给函数。
⑵ . 假定市场需求函数为 QD=4000-400P ,求市场均衡价格。
(参考分15分)
解:⑴ . 因为在完全竞争条件下,厂商短期供给曲线就是其边际成本曲线。
故对成本函数中q求导:SMC=q+1 ,
又因为完全竞争条件下,厂商短期均衡条件是:MR=SMC ;并且P=MR
故有:P=MR=SMC=q+1 ,即P=q+1 ,变换得:q=P-1
已知完全竞争行业中有500家完全相同的厂家,
所以,市场的供给函数为:QS=500×(P-1)=500P-500
⑵ . 因为市场均衡时,QD=QS
所以,4000-400P=500 P-500 ,解得市场均衡价格:P=5
7.一个厂商在劳动市场上处于完全竞争,而在产出市场上处于垄断。
已知它所面临的市场需求曲线P=200-Q ,当厂商产量为60时获得最大利润。
若市场工资率为1200时,最后一个工人的边际产量是多少?(参考分13分)
解:因为产出市场处于垄断,市场需求曲线就是厂商需求曲线。
所以,在产量为60时获得最大利润,厂商的产品价格为:P=200-60=140
又因为劳动市场处于完全竞争,厂商便用生产要素最优原则是:MP·P=W ;已知W=1200 ,已求P =140 。
所以,MP×140=1200 ,解得:MP=8.57 。
因此,最后一个工人的边际产量是8.57单位。