2010级期末考试试题B(试卷NEW)

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北京交通大学海滨学院2010英语B班期末试卷

北京交通大学海滨学院2010英语B班期末试卷

北京交通大学海滨学院2010-2011学年度第一学期大学英语一级(10级B班)测验卷学号:英语学号:姓名:英语班级:Part I Listening Comprehension (25*1= 25 Points)Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and questions will be spoken only once. After each question, there will be a pause. During the pause, you must read the four choices marked A), B), C), D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet.1. A)514 Fifth Stress. B) 514 Fourth Stress.C) 415 Fourth Stress. D) 415 Fifth Stress.2. A) The chemistry lab. B) The language lab.C) The physics lab. D) The chemistry and physics lab.3. A) She didn’t like the design of the bag.B) She didn’t like the color of the bag.C) She didn’t like the leather one.D) She didn’t want one really.4. A) A doctor. B) A nurse.C) A secretary. D) A waitress.5. A) It’s well worth watching. B) She doesn’t think much of it.C) It’s terrible. D) It’s just so-so.6. A) Mr. Yang. B) Mr. Zhang.C) Nobody. D) All the teachers.7. A) To his home. B) To her home.C) To go out. D) To go abroad8. A) Watching television. B) Reading a newspaper.C) Listening to the radio. D) Reading a magazine.Questions 9 to 11 are based on the conversation you have just heard.9. How long is Ana staying at the Visa Inn?A) One night, the 2nd. B) Two nights, the 2nd and the 3rd.C) Three nights, the 2nd, 3rd, and 4th. D) Two nights, the 2nd and the 4th.10. How much is Ana’s room one night?A)$140 B)$149 C)$179 D)$14111. What kind of room will Ana stay in?A) Ocean view, smoking. B) Ocean view, non-smoking.C) Mountain view, non-smoking D) Mountain view, smoking.Questions 12 to 14 are based on the conversation you have just heard.12. Why does Dave call Stephen?A) He needs a job. B) He needs a new waiter.C) He needs help with some projects. D) He needs some food in the restaurant.13. What time does Stephen first want to meet?A) Around 11:00 B) Around 12:00C) Around 2:00 D) Around 3:0014. Why is this a bad time for Dave?A) He has another meeting.B) He is out.C) He is busy.D) He has something important to do.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and questions will be spoken only once. After you hear a question, you must choose the best answer form the four choices marked A), B), C), D). Then mark the corresponding letter on the Answer Sheet.Passage OneQuestions 15 to 19 are based on the passage you have just heard.15. A) Three B) Four C) Five D) Six16. A) They only have language class.B) They do not really study at this time.C) They have the same courses as they will have in elementary.D) Parents can choose the courses for children.17. A) Two. B) Three. C) Four. D) Six.18. A) Three. B) Two. C) Four. D) Six.19. A) Language. B) Literature.C) Mathematics. D) All of the above.Passage TwoQuestions 20 to 22 are based on the passage you have just heard.20. A) Seasonal variations in nature.B) How intelligence changes with the change of season.C) How we can improve our intelligence.D) Why summer is the best season for vacation.21. A) Summer. B) Winter. C) Fall. D) Spring.22. A) All people are less intelligent in summer than in other seasons of the year.B) Heat has no effect on people’s mental abilities.C) People living near the equator are the most intelligent.D) Both climate and temperature exert impact on people’s intelligence.Passage ThreeQuestions 23 to 25 are based on the passage you have just heard.23. A) In 1896. B) In 1912. C) In 1916. D) In 1940.24. A) They are religious celebrations.B)Their only goal is to promote world peace.C) Both male and female athletes competed in the first modern Olympic Game.D)They take place every four years.25. A) Once. B) Twice. C) Three times. D) Four times.Part II Reading comprehension (5*1+10*2= 25 Points)Section A Fast Reading (Skimming and Scanning) (5*1= 5 Points)Directions: In this part, you will have 10 minutes to go over the passage quickly and answer the questions on the Answer Sheet. For questions 26-28, markY (for YES) if the statement agrees with the information given in the passage, N (for NO) if the statement contradicts the information given in the passage, or NG (for NOT GIVEN) if the statement is not given in the passage.For Questions 29 and 30, complete the sentences with the information given in the passage. English Around the WorldDo you speak English? That question is frequently asked in countries around the world. Although there are almost 3,000 languages, English is most universal. It is the official language in over 40 countries and the most used language in international business, science, and medicine.Even in countries where English is not the first language, a number of English words are used. No other language is borrowed from more often than English. For example, a French worker looks forward to le weekend. A Romanian shopper catches a ride on the trolleybus. A Chinese businessperson talks on the te le fung (telephone). Some Swedish schoolgirls have even started making the plural forms of words by adding –s, as in English, instead of the Swedish way of adding –ar, -or or –er.Hundreds of words borrowed from English can now be found in other languages, words such as soda, hotel, golf, tennis, jeans, O.K., baseball, and airport. Although many words are used just as they are, others are changed to make them more like the native language and therefore easier to say and remember. Thus a Japanese worker gets stuck in rushawa (rush-hour) traffic. A Spanish mother tells her child to put on her sueter (sweater), and a Ukrainian man goes to the barber for a herkot (haircut)English is everywhere. It is on signs, clothing, soft drinks, and household products around the world. In spite of the popularity of English words and phrases, however, they are not always welcome. Some people think that the use of English words is threatening the purity of their native language. The French started a commission to try to stop, and even give fines for the use of English words. Some countries have tried to eliminate English as their official language in order to save their native tongue.On the other hand, some people believe that English should be the international language. They give a number of reasons for this, such as the cost of translations and the misunderstanding that result from language differences. They believe that things would run more smoothly if everyone spoke the same language.“What would become of our many different cultures?‖ others argue. ―Certainly the world would be a much less interesting place,‖ they add. Indeed, there is serious concern on the part of language experts that many languages are disappearing. In some parts of the world, only a few people are left who can speak the native tongue. In Ireland, for example, there are only a few small areas where people speak Gaelic, the native Irish language. One expert says that half of the world’s languages are dying because children are no longer learning them.Languages have changed and disappeared throughout history. With progress, change is inevitable. Some things are worth preserving. Others are not. The difficulty is in deciding what is worth keeping. Because people have very strong feelings about the importance of their native language, we probably will not have a universal language in the near future. What is certain, however, is thatEnglish words will continue to pop up everywhere, from Taiwan to Timbuktu, whether some people like it or not.26. From the first paragraph, we know that at present English is used more widely in different fields than any other language in the world.27. Rushawa in Japan and sueter in Spanish show that some English words are changed so that they may be learned more quickly than the words in the native languages by the local people.28. In 1975, the French set up a commission to try to eliminate English as their official language.29. The author uses the example of Gaelic to illustrate that .30. At the end of the passage, the author draws a conclusion that . Section B Reading in Depth (10*2= 20 Points)Directions: In this section there are two passages each with five incomplete statements. Read each passage and complete the statements with one of the four given choices marked A, B, C, and D according to your comprehension. You should decide on the best choice and then write down the corresponding letter on the Answer Sheet.Passage OneQuestions 31 to 35 are based on the following passage.Part AIn 2001 the United Kingdom was hit again by foot-and-mouth disease, the first time since the 1960s, causing a national crisis. However, much of the panic and confusion was spread largely as a result of ignorance of the disease.Foot-and-mouth is a highly contagious (传染性的) disease found in Africa, South America, Asia, the Middle East and parts of Europe. It affects cloven-footed (偶蹄) domestic animals such as cows, pigs, sheep and goats, as well as wild animals like rats and deer and zoo animals such as elephants. Horses, however, cannot contract (感染) the disease.It is very rare for humans to catch the disease. Indeed, only one case has been recorded in Great Britain and that was in 1967.Part BFoot-and-mouth disease is insidious (潜伏的)and can be spread by direct and indirect contact with infected animal. The disease can be spread on the wind, and can be spread by people, equipment or vehicles which have been in contact with the disease.Although the authorities do not really know where this latest outbreak of the disease originated, it can enter a country in frozen meat imported from other countries where the disease is common. Unlike Mad Cow Disease (BSE) and the human equivalent CJD, foot-and-mouth has no implication (牵连)for the human food chain. Any meat, milk, cheese and other dairy products can be consumed quite safely.Part CIt seems that the only way to control the disease is to kill infected animals. There is no cure for the disease, and although adult animals normally recover in 2-3 weeks, they sadly remain carriers of the virus for up to two years.From the time the disease was first reported to the time the epidemic(流行)was officially declared over, one and a half million and more domestic animals were slaughtered and large areas of the countryside were closed to the public. These areas included parks, woods and forests, and various leisure attractions situated in the countryside.31. The main purpose of writing this passage is_______.A. to warn people of the danger of the diseaseB. to describe the disaster by the diseaseC. to share some of the facts about the diseaseD. to declare the success in control of the disease32. Foot-and-mouth disease is insidious because it is spread_______.A. by farmers and farm vehiclesB. in so many different waysC. by being carried in the airD. mainly by people who have been in contact with infected animals33. That foot-and-mouth disease is different from Mad Cow Disease mainly lies in that______.A. it affects the human food chainB. people cannot consume dairy productsC. it is found in frozen meatD. meat is still safe to eat34. The underlined word ―they‖ in Part C means ________.A. diseaseB. infected animalsC. adult animalsD. 2-3 weeks35. Which of the following is not true according to the passage?A. Horses cannot contract the foot-and-mouth disease.B. The record that humans caught the disease was first kept in 1967.C. Frozen meat imported from other countries can carry the disease.D. Animals infected can be cured in 2-3 weeks.Passage TwoQuestion 36 to 40 based on the following passage.In bringing up children, every parent watches eagerly the child's acquisition (学会) of each new skill m the first spoken words, the first independent steps, or the beginning of reading and writing. It is often tempting to hurry the child beyond his natural learning rate, but this can set up dangerous feelings of failure and states of worry in the child. This might happen at any stage. A baby might be forced to use a toilet too early; a young child might be encouraged to learn to read before he knows the meaning of the words he reads. On the other hand, though, if a child is left alone too much, or without any learning opportunities, he loses his natural enthusiasm for life and his desire to find out new things for himself.Parents vary greatly in their degree of strictness towards their children. Some may be especially strict in money matters. Others are severe (严格的) over time of coming home at night or punctuality for meals. In general, the controls represent the needs of the parents and the values of the community as much as the child's own happiness.As regards the development of moral standards in the growing child, consistency is very important in parental teaching. To forbid a thing one day and excuse it the next is no foundation for morality (道德). Also, parents should realize that "example is better than precept". If they are not sincere and do not practice what they preach (说教), their children may grow confused when they grow old enough to think for themselves, and realize they have been to some extent fooled.A sudden awareness of a marked difference between their parents' principles and their morals can be a dangerous disappointment.36. Eagerly watching the child's acquisition of new skills, ___________.A. should be avoidedB. is universal among parentsC. sets up dangerous states of worry in the childD. will make the child lose interest in learning new things37. In the process of children's learning new skills, parents ________.A. should encourage them to read before they know the meaning of the words they readB. should expect a lot of the childrenC. should achieve a balance between pushing them too hard and leaving them on their ownD. should create as many learning opportunities as possible38. The second paragraph mainly tells us that ___________.A. parents should be strict with their childrenB. parental controls reflect only the values of the communityC. parental restrictions vary, and are not always for the benefit of the children aloneD. it's parents' and society's duty to control the children39. The word "precept" in Paragraph 3 probably means "___________".A. opinionB. punishmentC. behaviorD. instruction40. In terms of moral matters, parents should _________.A. follow the rules themselvesB. be aware of the huge difference between adults and childrenC. forbid their children to follow hook teachingsD. always ensure the security of their childrenPartⅢCloze (20*1= 20 points)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D). You should choose the ONE that best fits into the passage. Then mark the corresponding letter on the Answer Sheet.The people in the village of Gundrung, Nepal, like to look at the photograph of a nameless young man. The __41__ is posted on the wall of the village community center. It __42___ a smiling bearded young man __43__ a backpack, their tourist. The villagers of Gundrung think that he is the best tourist ___44___ ever visited their village.__45__ made the villagers so happy about this young tourist? One of the villagers said it best, ―He brought most of his own food. He worked with the people to fix trails near the village. He was concerned __46__ using wood for fuel. He didn’t even ask __47__ hot water for a shower.‖ As __48__ as the people of Gundrung are __49__, he was an ideal visitor.In the 1960s, people first became __50__ of global issues. Many became concerned about global __51__ like peace, cultural diversity, human rights, biodiversity and the __52__. Even tourists started to think about the people and the surroundings in the regions that they __53__. In the past, tourism often had negative resu lts for local communities. ―Taking a trip‖ meant going to museums and __54__ souvenirs. Tourists went to enjoy the beaches and see the sights, __55___ they did not interact __56__ the people there. ___57___, these local people saw the visitors only as a(n) ___58___ of money. The native people did not respect the tourists, and the tourists did not __59___ the native people. In fact, the people of the two groups hardly interacted with one another at all—except over ___60___.41. A) name B) man C) picture D) drawing42. A) tells B) describes C) looks D) shows43. A) with B) in C) of D) over44. A) and B) who C) has D) they45. A) Who B) What C) Why D) How46. A) over B) of C) about D) into47. A) for B) with C) about D) of48. A) well B) soon C) much D) far49. A) cared B) concerned C) involved D) considered50. A) aware B) clear C) recognizing D) understanding51. A) things B) matters C) questions D) issues52. A) world B) environment C) society D) country53. A) lived B) saw C) visited D) experienced54. A) selling B) buying C) making D) giving55. A) but B) so C) also D) or56. A) to B) with C) among D) over57. A) However B) Therefore C) Nevertheless D) Whatever58. A) income B) origin C) source D) resource59. A) see B) ignore C) enjoy D) respect60. A) time B) money C) space D) landPart ⅣV ocabulary & Structure (10*1+5*1+5*1= 20 points)Section A: Complete the sentences below with the proper words chosen from the box. Change the form of the word where necessary. (10*1= 10 Points)61. The father didn’t allow his six-year-old son to see the film because of its violence and its________ values.62. It has been proved that these new drugs are _______ in treating lung cancer.63. The director’s serious mistake made all the staff get ________ in working extra hours.64. Physical exercise is really an effective way of _______ pressure for most people.65. It is _________ that you can’t go on like this, playing computer games all day long without eating right and sleeping well.66. The_________ of air pollution can be achieved if we all choose to take public transportation more often.67. Scientists think that one of the effective ways of saving water is to __________ wastewater.68. The man told the salesgirl that he wanted to buy some __________diamonds for his wife.69. His wife strongly __________ that he take a holiday after five days of working overtime without regular sleep.70. Although the teacher didn’t mention any names, everyone in the classroom knew whom she was_____________ to.Section B: Replace the underlined parts in the following sentences with words or expressions from the text that best keep the original meaning.(5*1= 5 Points)71. Tina is able to feel every slight change in her husband after he came back from the business trip. ( )72. More and more women from China and many other countries take part in a growing number of sports in the Olympic Games. ( )73. Sunshine, clean water and fresh air do good to plants, animals, as well as human beings. ( )74. Parents and teachers often instruct children to be careful and not to talk to strangers.( )75. Nowadays, the grand flyovers have taken the place of the crossroads in some streets in this city. ( )Section C: Choose the closest and right meaning from the four choices marked A, B, C and D.(5*1= 5 Points)76. Some countries have tried to eliminate English as their official language in order to save their native tongue.A removeB defeatC promoteD maintain77. With progress, change is inevitable. Some things are worth preserving. Others are not.A possibleB obviousC avoidableD certain78. Details of the game are available from our head office.A able to be discussedB able to be obtainedCable to be questioned D able to be cancelled79. You must do physical exercises every day if you want to keep fit.A suitableB qualifiedC healthyD strong80. What is certain, however, is that English words will continue to pop up everywhere.A develop quicklyB appear unexpectedlyC spread widelyD change suddenlyPart ⅤTranslation (5*1+ 5*1= 10 points)(注意:此部分试题请在答题卡上作答,只需写出译文部分。

2010-2011年第1学期大学物理(二)试卷B卷

2010-2011年第1学期大学物理(二)试卷B卷

滁州学院2010/2011学年度第一学期期末考试试卷非物理专业(本科)2009级《大学物理》B 卷(时间120分钟)一、选择题(每小题3分,共30分)1、如图,在点电荷q 的电场中,选取以q 为中心、R 为半径的球面上一点P 处作电势零点,则与点电荷q 距离为r 的P'点的电势为( )(A) r q04πε (B) ⎪⎭⎫⎝⎛-R r q 1140πε(C) )(40R r q-πε (D) ⎪⎭⎫ ⎝⎛-r R q 1140πε2、图示一均匀带电球体,总电荷为+Q,其外部同心地罩一内、外半径分别为1r 、2r 的金属球壳.设无穷远处为电势零点,则在球壳内半径为r 的P 点处的场强和电势为:() (A)rQ U r Q E 0204,4πεπε==.(B) 104,0r QU E πε==(C) r QU E 04,0πε==.(D) 204,0r QU E πε==3、如图所示,流出纸面的电流为2I ,流进纸面的电流为I 。

则对于图中的L 1、 L 2、 L 3、 L 4回路,下述各式哪一个是正确的?( )(A )⎰=⋅→→12L I l d H (B )⎰=⋅→→22L I l d H(C )⎰=⋅→→3L I l d H (D )⎰=⋅→→42L I l d H4、无限长的直导线在A 点弯成半径为R 的园环,则当通以电流I 时,园心O 处的磁感应强度大小等于:( )()R IA πμ20()R IB 40μ ()0C ())11(20πμ-R I D5、平行板电容器,量板间距d ,面积S ,介质介电常数ε,每板带电Q ,面密度σ,则电容器电容为( )A 、d QS C =B 、d SC σ= C 、d S C ε=D 、dC εσ=6、某种介质放在空气中,它的起偏振角为600,则其折射率为( ):(A )33;(B )3;(C )32;(D )33。

7、两偏振片堆叠在一起,一束自然光垂直入射其上时没有光线通过,当其中一偏振片慢慢转动1800时透射光强度发生的变化为( )(A )光强单调增加; (B )光强先增加,后又减小至零; (C )光强先增加,后减小,再增加;(D )光强先增加,然后减小,再增加,再减小至零。

大一英语专业-泛读教程一期末考试B卷

大一英语专业-泛读教程一期末考试B卷

试卷代码:曲 靖 师 范 学 院2010─2011学年第一学期英语专业、0312、0313班《阅读1》期末考试试卷(B 卷)任课教师:杨 乐、李 丹、闫 凌 系(室)主任: (签字)注意:1.本试卷共10页,请考生仔细检查,有错、漏、破烂及时报告监考教师更换。

2.考生班级、学号和姓名必须写在指定地点。

3.考试形式:闭卷,考试时间120分钟。

Part I Multiple Choices (共15小题,每小题1分,满分15分)Directions : There are 15 incomplete sentences in this part. For each sentence there are four Choices marked A, B, C and D. Choose the ONE answer that best completes the sentence. 1. ________ as it was at such a time, his work attracted much attention.A. Being publishedB. PublishedC. PublishingD. To be published2. Investigators agreed that passengers on the airliner ________ at the very moment of the crash. A. should have died B. must be dying C. must have died D. ought to die3. We gave out a cheer when the red roof of the cottage came ________ view. A. from B. in C. before D. into4. A good many proposals were raised by the delegates, ________ was to be expected. A. that B. what C. so D. as5. The ________ goal of the book is to help bridge the gap between research and teaching, particularly the gap between researchers and teachers.班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------------A. jointB. intensiveC. overallD. decisive6.________ the enormous flow of food from the entire globe, these countries have for many years not felt any population pressure.A. Thanks toB. By means ofC. In line withD. With regard to7. ________ I admire David as a poet, I do not like him as a man.A. Much asB. Only ifC. If onlyD. As much8. When I go out in the evening I use the bike ________ the car if I can.A. rather thanB. regardless ofC. in spite ofD. other than9. It is politely requested by the hotel management that radios ________ after 11 o’clock at night.A. were not playedB. not to playC. not be playedD. did not play10. ________ the storm, the ship would have reached its destination on time.A. But forB. In case ofC. In spite ofD. Because of11. I have kept that portrait ________ I can see it every day, as it always reminds me of my university days in London.A. whichB. whereC. whetherD. when12. If I had remembered ________ the window, the thief would not have got in.A. to closeB. closingC. to have closedD. having closed13. It’s reported that by the end of this month the output of cement in the factory ________ by about 10%.A. will have risenB. has risenC. will be risingD. has been rising14. In Africa, educational costs are very low for those who are ________ enough to get into universities.A. ambitiousB. fortunateC. aggressiveD.substantial15. She had a tense expression on her face, ________ she were expecting trouble.A. even thoughB. as thoughC. even asD. now that(阅读1)·第 3 页 共 16 页Part II Word Match (共15小题,每小题1分,满分15分)Directions : Match the following words with their definitions within each group of five words.1. negotiation a. a group of people selected to do something special2. committee b. not simple; complicated3. tentative c. unpleasant4. Sophisticated d. discussion aimed at reaching an agreement5. offensive e. not certain6. conceive f. connect7. legal g. lack of what is needed 8. associate h. become pregnant 9. deficiency i. marvelous 10. spectacular j. allowed by law11. faithful k. almost; nearly; 12. virtually l. lonely13. alleviate m. true to somebody14. solitary n. make less hard to bear; relieve15. survey o. look at, examine (a person, place, or condition) as a wholePart III Sentence Completion (共10题,每题1分,共10分)Directions : Fill in each of the blanks with the given word in its proper form.1. I was so ________ at the sight of a snake crawling in the grass near my feet. (frighten)2. Lincoln had many of the qualities of _________ that American admire. (lead)3. The _______ power of an engine can be measured by a dynamometer. (effect)4. To run away at the first sight of danger is a _______ action. (coward)5. The medicine is ________ if taken in large quantities. (poison)6. The judge would give _______ to his decision when new evidence came to light. (consider)7. My father cannot read and write; he is _______. (literate)8. The boy's answer seemed to come from the _________. (conscious) 9. On that sea trip, he was quite _______ and threw up. (sick, sea)10. In the United States , a ________ is empowered to serve as president in the latter's absence or disability. (president)Part Ⅳ Cloze (共10空,每空1分,满分10分)Directions : In this part, there are ten blanks in the passage, choose one word for each blank from the list below. Write down the answer on the Answer sheet .logical playing birthday wonderful mental sense lived brother paid spend honest alone memory affect degreeSigmund Freud, the world-famous doctor of Vienna, was a thinker who changed the way we look at mental trouble. He also had a 1 of humor.Once, at his 70th birthday party, a relative asked Freud if he could put his work into simple words. “Well ,” said the Professor, “we take the patient out of his 2 trouble, and return him to the common misery.”Freud had three sisters. They had never married. They each 3 in a small apartment. Freud and his brother 4 the sisters ’ bills. The sisters lived simply. The brother asked Uncle Sigi, as Freud was called in his large family, if the sisters could live together. “It ’s班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------(阅读1)·第 5 页 共 16 页logical,” said the 5 , “It would save money.”Freud said, “Yes, it ’s 6 , but it wouldn ’t be psychological.” The sisters kept their own apartments, and the idea was dropped.Freud was a devoted son. His mother used to 7 her summers in Ischl, a small mountain town in Austria. The Emperor Franz Josef used to spend his summers in Ischl, too.Grandma Freud, as she was called by the family, used to sit at the window and watch the crowds on Main Street. Freud was visiting his mother on her 95th birthday. The band was 8 _ a lively tune. The old lady ’s memory must have failed her. She heard the band playing, but forgot it was the Emperor ’s 9 . The Professor told his mother, “Mama, the band is playing for your birthday.” She believed him and had a 10 day.Part Ⅴ Reading Comprehension (共25小题,每小题2分,满分50分)Directions : There are five passages in this part. Each passage is followed by five questions or unfinished statements. For each question, there are four choices marked A, B, C and D. You should choose the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center. Passage 1Questions 1 to 5 are based on the following passage:A fire drill is, to put it mildly, an inconvenient exercise at the best of times. A fire drill at 2:00 in the morning in terrible weather conditions, like the one we had on Thursday night and Friday morning last, is incomparably more inconvenient. This is why writing this note to thank you all most sincerely for your excellent co-operation and the spirit with which you endured the inconvenience.A fire drill is not an idle exercise. It is an extremely serious one and can, in fact, save lives in the long run. Last week’ f ire drill has already revealed a number of important things regarding班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------------fire precautions in the Hall. For instance, there seem to exit a number of “deaf spots” in the Hall, namely, the two rooms in Purser House and some rooms in the Bottom corridor. I have no reason to doubt that residents from these areas could not hear the alarm. I shall request an immediate examination of this problem.I should, also, remind you that it is a requirement that fire drills should be regularly carried out (at least two in every one year)and each resident should be made fully aware of this and obliged to take part. All residents must take fire precautions with the seriousness they deserve. Failure to do so can result bin fines and expulsion(驱逐)from the Hall. Thank you again for your co-operation.1. The last fire drill caused much more inconvenience because_________.A. it was in bad weatherB. there were “deaf spots”C. a big fire startedD. it was at the weekend2. The phrase “in the long run” (L.2, Part.2) means_________.A. effectivelyB. endlesslyC. eventuallyD. efficiently3. Some people did not make their appearance at the last drill because_______.A. they were deafB. they could not hear the alarmC. nobody waked them upD. they refused to leave their rooms4. A fire drill is extremely important according to the writer for_________.A. it is a good physical exerciseB. it cultivates people’s enduranceC. it is a legal requirementD. it can save lives in case of a fire5. Which of the following was NOT stated by the author?A. A fire drill is very important and useful.B. The last fire drill received inactive co-operation from the residents.C. Those who do not take fire precautions will be fined and driven out.D. It has been made a rule that fire drills will be performed regularly.Passage 2Questions 6 to 10 are based on the following passageAccidents are caused; they don’t just happen. The reason may be easy to see: a shelf out of reach, a patch of ice on the misfortune—frustration, tiredness or just bad temper—that show what the accident really is, a sort of attack on oneself.Road accidents, for example, happen frequently after a family quarrel, and we all know people who are accident-prone, so often at odds with themselves and the world that they seem to cause accidents for themselves and others.By definition, an accident is something you can not predict or avoid, and the idea which used to be current, that the majority of road accidents are caused by a minority of criminally careless drivers, is not supported by insurance statistics. These show that most accidents involve ordinary motorists in a moment of carelessness or thoughtlessness.It is not always clear, either, what sort of conditions make people more likely to have an accident. For instance, the law requires all factories to take safety precautions and most companies have safety committees to make sure the regulations are observed, but still, every day in Britain, some fifty thousand men and women are injured from work due to accidents. These accidents are largely the result of human error or misjudgment—noise and fatigue, boredom or worries are possible factors which contribute to this. Doctors who work in factories have found that those who drink too much, usually people who have a high anxiety level, run three times the normal risk of accidents at work.6. The passage suggests that________.A. Accidents are usually caused by psychological factors.B. Accidents mostly result from slippery roads.C. Drinkers run three times the normal risk of accidents in factories.D. About 50 000people lose their lives at work in Britain every day.(阅读1)·第7 页共16 页7. Which of the following is NOT mentioned as a factor of accidents?A. Mood.B. Tiredness.C. CarelessnessD. Weather8. The wo rd “accidents-prone” (L.2 Para.2) means________.A. likely to have accidentsB. injured in accidentsC. possible to die in accidentsD. responsible for road accidents9. What can we infer about the author’ opinion of accidents?A. Safety precautions are of little use in accidents.B. Many accidents can and should be avoided.C. Factory accidents, unlike road accidents, are inevitable.D. Most road accidents are caused by just a few careless drivers.10. The best title for the passage would be __________.A. Accidents and AnxietyB. How to Deal with Accidents on Road and in FactoriesC. Human Factors in AccidentsD. How to Prevent Accidents on Road and in FactoriesPassage 3Questions 11 to 15 are based on the following passage.It is not often realized that women held a high place in southern European societies in the 10th and 11th centuries. As a wife, the woman was protected by the setting up of a dowry (嫁妆). Admittedly, the purpose of this was to protect her against the risk of desertion, but in reality its function in the social and family life of the time was much more important. The dowry was the wife’s right to receive a tenth of all her husband’s property. The wife had the right to with hold consent, in all transactions the husband would make, and more than just a right; the documents show that she enjoyed a real power of decision, equal to that of her husband. In no case do the documents indicate any degree of difference in the legal status of husband and wife.The wife shared in the manage ment of her husband’s personal property, but the opposite班级____________________学号____________________姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------(阅读1)·第 9 页 共 16 页was not always true. Women seemed perfectly prepared to defend their own inheritance against husbands who tried to exceed their rights, and on occasion they showed a fine fighting spirit. A case in point is that of Maria Vivas. Having agreed with her husband Miro to sell a field she had inherited, for the needs of the household, she insisted on compensation. None being offered, she succeeded in dragging her husband to the scribe to have a contract duly drawn up assigning her a piece of land from Miro’s personal inheritance. The unfortunate husband was obliged to agree, as the contract says, “for the sake of peace.” Either through the dowry or through being hot-tempered, the wife knew how to win herself, with the context of the family, a powerful economic position.11. Originally, the purpose of a dowry is to ____.A. give a woman the right to receive all her husband’s propertyB. help a woman to enjoy a higher position in the familyC. protect a woman against the risk of desertionD. both A and C12. According to the passage, the legal status of the wife in marriage was ____. A. higher than that of a single woman B. higher than that of her husband C. lower than that of her husband D. the same as that of her husband13. Why does the author give us the example of Maria Vivas? ____A. To show that the wife shared in the management of her husband’s personal property.B. To show that the wife can defend her own inheritance.C. To prove that women have powerful position.D. To illustrate how women win her property.14. The compensation Maria Vivas got for the field is ____.班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------------A. some of the land Miro had inheritedB. a tenth of Miro’s landC. money for household expensesD. money from Miro’s inheritance15. The author’s attitude towards Maria Vivas is ____.A. sympatheticB. disapprovalC. indifferentD. objectivePassage 4Questions 16 to 20 are based on the following passage:Is language, like food, a basic human need? Judging from the result of the violent experiment by a German King, Frederick II, in the 13th century, it may be. Hoping to discover what language a child would speak if he heard no mother tongue, he told the nurses to keep silent.All the infants died before the first year. But clearly there was more than language deprivation here. What was missing was good mothering. Without good mothering, in the first year of life especially, the capacity to survive is seriously affected.Today no much violent deprivation exists as that by Frederick II. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to the signals of the infant, whose brain is programmed to map up language rapidly. There are critical times, it seems, when children learn more readily. If these sensitive periods are neglected, the ideal time for acquiring language skills passes and they might never be learned so easily again.Linguists (语言学家) suggest that speech stages are reached in a fixed sequence and at a constant age, but there are cases where speech has started late in a child who eventually turns out to be of high IQ.Recent evidence suggests that an infant is born with the capacity to speak. What is special about Man’s brain compared wit h that of the monkey, is the complex system which enables achild to connect the sight and feel of , say, a teddy-bear(玩具熊)with the sound pattern “teddy-bear”.But speech has to be stimulated, and this depends on interaction between the mother and the ch ild, where the mother recognizes the signals in the child’s babbling(牙牙学语), grasping, crying, smiling, and responds to them. Insensitivity of the mother to these signals dulls the interaction because the child gets discouraged and sends out only the obvious signals. Sensitivity to the child’s non-verbal signals is essential to the growth and development language.16. Frederick II’s experiment was violent because_________.A. he wanted to prove children are born with ability to speakB. he ignored the importance of mothering to the infantC. he was unkind to the nurseD. he wanted his nurses to say no mother tongue17. The reason some children are backward in speaking today that_________.A. their mothers do not respond to their attempts to speakB. their mothers are not intelligent enough to help themC. they do not listen carefully to their mothersD. their brains have to absorb too much language at once.18. By “critical times” in Paragraph 3 the author means__________.A. difficult periods in the child’s l ifeB. moments when the child becomes critical to its motherC. important stages in the child’s developmentD. times when mothers often neglect their children19. Which of the following in NOT implied in the passage?A. Ability to learn to speak a language is inborn in manB. Children do not need to be encouraged to learn to speakC. Early language starters are not necessarily highly intelligent(阅读1)·第11 页共16 页D. Most children learn their language in definite stages20. If the mother does not respond to her child’s signa ls_________.A. the child will never be able to speak properlyB. the child will stop giving out signalsC. the child will invent a language of his ownD. the child will make little effort to speakPassage 5Questions 21 to 25 are based on the following passage.Ask Steveland Morris and he’ll tell you that blindness is not necessarily disabling. Steveland was born prematurely and totally with sight in 1950. He became Steve Wonder ----- composer, singer, and pianist. The winner of ten Grammy awards, Stevie s widely acclaimed for his outstanding contributions to the music world.As a child, Stevie learned not to think about things he could not do, but to concentrate on the thing that he could do. His parents encouraged him to join his sighted brothers in as many activities as possible. They also help him to sharpen his sense of hearing, the sense upon which the visually disabled are so dependent.Because sound was so important to him, Stevie began at an early age to experiment with different kinds of sound. He would bang things together and then imitate the sound with his voice. Often relying on sound for entertainment , he sang, beat on toy drums, played a toy harmonica (口琴), and listened to the radio.Stevie soon graduated from toy instruments to real instruments. He first learned to play the drums. He then mastered the harmonica and the piano. He became a member of the junior church choir and the leading singer. In the evenings and on weekends, Stevie would play different instruments and sing popular rhythm and blues tunes on the front porches of neighbor’shomes.班级____________________学号____________________姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------(阅读1)·第 13 页 共 16 页One of Stevie sessions was overhead by Ronnie White, a member of a popular singing group called The Miracles. Ronnie immediately recognized Stevie’s talent and took him to audition (试演) for Berry Gordy, the president of Hitsville USA, a large recoding company known as Motown. Stevie recorded his first smash hit “Fingertips” in 1962 at age 12, and the rest of Stevie’s story is music history.21. This passage could be entitled _____.A. The Music WorldB. Stevie WonderC. Great MusiciansD. Blind People22. Which of the following is NOT true about Stevie’s childhood? A. Stevie used to tell people that a blind people is not necessarily disabled. B. He learnt to concentrate on things that he could do.C. He played as often as possible with his brothers, who had normal sight.D. He tried very hard to train his sense of hearing.23. BY saying” Stevie soon graduated from toy instrument to real instruments,” the author means that _____.A. Stevie finished his study at a toy instruments schoolB. Stevie began to study in a real instruments schoolC. Stevie gave up all his toy instruments and began to buy many real instrumentsD. Stevie started to play real instruments24. The author mentions all the following facts EXCEPT that _____. A. Stevie’s neighbor could often enjoy his playing and singingB. It was Ronnie White that recognized Stevie’s talent and let him to a successful careerC. Berry Gordy helped him to set up his own recording companyD. Stevie’s parents played a very important part in training his sense of hearing 25. The “Fingertips” _______.班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------------A. recorded Stevie’s musical performance that won him instant fameB. was a record that turn out to be a great successC. carried the message that the blind could work miracles with their fingertipsD. all of the above(阅读1)·第 15 页 共 16 页Answer SheetPart I Multiple Choices (共15小题,每小题1分,满分15分)1-5: _______________ 6-10: _______________ 11-15: _____________Part II Word Match (共15小题,每小题1分,满分15分)1-5: 6-10: 11-15:Part III Blank-filling (共10小题,每小题1分,满分10分)1. _____________2. ___________3. ____________4. ___________5._____________6. ___________7. ____________8. ____________9. ____________ 10.___________Part Ⅳ Cloze (共10空,每空1分,满分10分)1. ________2. ________3. ________4. ________5. ________6. ________7. ________8. ________9. ________ 10. ________Part Ⅴ Reading Comprehension (共25小题,每小题2分,满分50分)1-5: ______ ______ ______ ______ ______ 6-10: ______ ______ ______ ______ ______ 11-15: _____ ______ ______ ______ ______16-20: _____ ______ ______ ______ ______21-25: _____ ______ ______ ______ ______班级____________________ 学号____________________ 姓名____________________ ----------------------------------------密----------------------------------------封----------------------------------------线--------------------------------。

B卷10级2012-2013学年第1学期期末考试试题B

B卷10级2012-2013学年第1学期期末考试试题B

B卷10级2012-2013学年第1学期期末考试试题B华南师范大学增城学院外语系2012/2013学年(1)学期期末考试试卷《综合英语IV》试卷(B卷)闭卷专业年级10班姓名学号题号I II III IV V总分得分I.Vocabulary&Structure(15%)Directions:Choose one word or phrase that best completes the sentence.(0.5×30=15%) 1.What the witness said in court was not_____with the statement he made to the police.A.relevantB.prevalentC.consistentD.coincident2.The day was breaking and people began to go to work so the murderer was unable to______of the body.A.discardB.eliminateC.disposeD.extinguish3.If all the viruses on the planet were to disappear,a global catastrophe would ______,and the natural ecosystems of the earth would collapse.A.contaminateB.ensueC.disperseD.hamstring4.In the18th century many British politicians favoredfriendship with Prussia because they thought the Prussian army was______to the British navy./doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html plimentary/doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html plicated/doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html plementary/doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html prehensive5.The whole program is well designed,but some details need further______ by some experts.A.proofingB.demonstratingC.modifyingD.materializing6.Some medical conditions can often cure themselves______,withoutmedical intervention.A.deliberatelyB.spontaneouslyC.consciouslyD.intentionally7.When feeling depressed,Hank______himself,preferring not to see anyone, not even his parents and friends.A.hidesB.avoidsC.secludesD.terminates8.I can’t answer your question about photography.It’s notin my______of interest.A.diaryB.theoryC.vocabularyD.domain9.In______countries around the world,too much food donated by well-meaning people feeds murderous gunmen instead of needy families.A.swayedB.shakenC.convulsedD.vibrated10.My feet hurt,and the side window______back and forth each time I kicked it,but nothing else happened.A.clappedB.wheeledC.waggledD.quaked11.The main features of the telegraph were developed by two inventors,but it was Samuel Morse who successfully______their ideas.A.integratedB.publicizedC.financedD.conformed12.The retiring professor made important achievements in research and was ______by his colleagues.A.evaluatedB.exaltedC.fascinatedD.examined13.The______in this plan are very obvious and it can’t possibly succeed.A.advantagesB.preconditionsC.deficienciesD.delicacies14.Getting into street fights is no minor matter for professional boxers,who are required by law to restrict their______impulses to the ring.A.humorousB.obligatoryC.aggressiveD.legitimate15.The girl_______when she couldn’t answer the ques tion in the presence of all her classmates.A.flushedB.flutteredC.flourishedD.flattered16.People think Guy is______because he wears weird clothes and ignoresmost social customs.A.emphaticB.interestingC.eccentric/doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html pulsive17.Individuals may at various points in their lives experience discrimination in the allocation of resources either______of beingtoo old or too young.A.at the riskB.to the pointC.on the groundD.in the case18.One of Freud’s great______into the human personality was the discovery of how it is influenced by unconscious processes.A.convictionsB.conceptsC.insightsD.instincts19.He must______the theory until it fully and reliably explains every part of the phenomenon.A.reviveB.reviseC.revoltD.reverse20.The desire for peace should not be equated with______,for lasting peace can be maintained only by brave people.A.intelligenceB.cowardiceC.neutralityD.authority21.The young woman______at the head of the procession wasa gold medal winner at the recent Olympic Games.A.being marchingB.being marchedC.marchedD.marching22.We have to understand that even when out plan to quadruple our GDP ______,we still cannot______the most advanced countries in average per capita income.A.materializes,matchB.is carried out,compare/doc/a090f590e55c3b3567ec102de2bd960 591c6d988.html es true,equalD.is achieved,keep abreast of23.If it______Professor Johnson’s recommendation,I wouldn’t have been admitted to the graduate school.A.weren’t forB.hadn’t been forC.weren’tD.hadn’t been24.______for a Christmas gift for my sister,a nice hat caught my eye.A.While shoppingB.ShoppingC.While I was shoppingD.Have been shopping25.Foreign students______Chinese literature last year at this university came chiefly from Japan and South Korea.A.who were studyingB.studiedC.were studying C.studying26.He thinks that Hemingway’s stories are not as humorous as______.A.Mark TwainB.Mark Twain’sC.that of Mark TwainD.those Mark Twain wrote27.______to show no emotion,the police officer stared straight ahead during the inspection.A.TrainingB.To be trainedC.Being trainedD.Trained28.The Information Technology Revolution,______possible through the introduction of computers in every field of human activity,has completely altered our approach to life.A.madeB.made itC.which madeD.to be made29.He______have gone to medical school,but his grades were too low.A.mustB.shouldC.wouldD.will30.It turned out that the project required$2billion more than______.A.has been investedB.it has been put in itC.have been invested inD.it have been put in itII.Translation(35%)A.Directions:Translate the following Chinese phrases into English and English phrases into Chinese.(1′×10=10%)1.时事2.紧张气氛3.人的动机和行为4.颠倒过程5.金融市场6.to hold a prominent position7.whipping the dead horse8.in the event of a submarine war9.room for doubt10.to seek membershipB.Directions:Translate the following Chinese sentences into English.(3′×5=15%)1.我觉得那地方值得去参观。

2011-2012学年度下学期2010级期末 物理 试卷

2011-2012学年度下学期2010级期末 物理 试卷

本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,试卷满分为100分.考试时间为90分钟.第Ⅰ卷(选择题,共40分)一、选择题(本题共10小题,每题4分,共40分.有的小题只有一个选项正确,有的小题有多个选项正确,把正确选项前的字母填在题后的括号内)图11.如图1所示,甲分子固定在坐标原点O ,乙分子沿x 轴运动,两分子间的分子势能E p与两分子间距离的关系如图1中曲线所示.图中分子势能的最小值为-E 0.若两分子所具有的总能量为0,则下列说法中正确的是( )A .乙分子在P 点(x =x 2)时加速度最大B .乙分子在P 点(x =x 2)时,其动能为E 0C .乙分子在Q 点(x =x 1)时,处于平衡状态D .乙分子的运动范围为x ≥x 12.一滴油酸酒精溶液含质量为m 的纯油酸,滴在液面上扩散后形成的最大面积为S .已知纯油酸的摩尔质量为M 、密度为ρ,阿伏加德罗常数为N A ,下列表达式正确的有( )A .油酸分子的直径d =MρSB .油酸分子的直径d =mρSC .油酸所含的分子数n =mM N AD .油酸所含的分子数n =MmN A3.分子动理论较好地解释了物质的宏观热力学性质.据此可判断下列说法中错误的是( )A .显微镜下观察到墨水中的小炭粒在不停地做无规则运动,这反映了液体分子运动的无规则性B .分子间的相互作用力随着分子间距离的增大,一定先减小后增大C .分子势能随着分子间距离的增大,可能先减小后增大D .在真空、高温条件下,可以利用分子扩散向半导体材料掺入其他元素 4对于自由落体运动,下列说法正确的是 ( ) A.在前1s 内、前2s 内、前3s 内……的位移之比是1∶3∶5∶… B.在第1s 末、第2s 末、第3s 末的速度之比是1∶3∶ 5 C.在第1s 内、第2s 内、第3s 内的平均速度之比是1∶3∶5D.在相邻两个1s 内的位移之差都是9.8m5.(2009·重庆高考)密闭有空气的薄塑料瓶因降温而变扁,此过程中瓶内空气(不计分子势能)( )A .内能增大,放出热量B .内能减小,吸收热量C .内能增大,对外界做功D .内能减小,外界对其做功6.(2009·四川高考)关于热力学定律,下列说法正确的是( ) A .在一定条件下物体的温度可以降到0 K B .物体从单一热源吸收的热量可全部用于做功 C .吸收了热量的物体,其内能一定增加7.某一物体作匀变速直线运动,测得它在s 1位移中所需的时间是t 1,紧接着t 2时间中的平均速度是v ,那么该物体的加速度是:( )A.)()(221111t t t s vt +- B. 22112)()(2t t t s vt +- C. 22112)()(t t s vt ++ D. 22112)()(t t s vt +- 2011-2012学年度下学期2010级期末 物理 试卷满分100分 时间:90分钟 命题人: 物理组8.(2009·福建高考)一定质量的理想气体在某一过程中,外界对气体做功7.0×104 J,气体内能减少1.3×105 J,则此过程()A.气体从外界吸收热量2.0×105 JB.气体向外界放出热量2.0×105 JC.气体从外界吸收热量6.0×104 JD.气体向外界放出热量6.0×104 J9.(2009·辽宁/宁夏高考)带有活塞的气缸内封闭一定量的理想气体.气体开始处于状态a,然后经过过程ab到达状态b或经过过程ac到达状态c,b、c状态温度相同,如V—T图所示.设气体在状态b和状态c的压强分别为p b和p c,在过程ab和ac中吸收的热量分别为Q ab和Q ac,则()A.p b>p c,Q ab>Q ac B.p b>p c,Q ab<Q acC.p b<p c,Q ab>Q ac D.p b<p c,Q ab<Q ac10.两个质点甲与乙,同时由同一地点向同一方向做直线运动,它们的速度一时间图象如图1所示.则下列说法中正确的是()A.第4 s末甲、乙将会相遇B.在第2 s末甲、乙速度相等C.在前2 s内,甲的平均速度比乙的大D.甲的加速度为5m/s2第Ⅱ卷(非选择题,共60分)二、填空题(本题共2小题,共17分)图311.(2009·广东高考)(8分)(1)远古时代,取火是一件困难的事,火一般产生于雷击或磷的自燃.随着人类文明的进步,出现了“钻木取火”等方法.“钻木取火”是通过________方式改变物体的内能,把________转变成内能.(2)某同学做了一个小实验:先把空的烧瓶放入冰箱冷冻,一小时后取出烧瓶,并迅速把一个气球紧密地套在瓶颈上,然后将烧瓶放进盛满热水的烧杯里,气球逐渐膨胀起来,如图 3.这是因为烧瓶里的气体吸收了水的________,温度________,体积________.12、(9分)在测定匀变速直线运动的加速度的实验中,用打点计时器记录纸带运动的时间,计时器所用的电源的频率为50Hz,图5为做匀变速直线运动的小车带动的纸带上记录的一些点,在每相邻的两点中间都有四个点未画出,按打点先后顺序取0、1、2、3、4、5六个点,用刻度尺量出1、2、3、4、5点到0点的距离分别是(单位:cm)8.78,16.08,21.87,26.16,28.94,由此可得出小车的加速度大小为_______m/s2,加速度的方向与速度方向(填“相同”或“相反”),经过2点时速度为______.(结果保留三位有效数字..........)三、计算题(本题共4小题,13题8分14题10分,15题12分16题各13分,共43分,计算时必须有必要的文字说明和解题步骤,有数值计算的要注明单位)13.一辆汽车以72km/h 速率行驶,现因故紧急刹车并最终停止运动,已知汽车刹车过程加速度图1图5的大小为5m/s2,则从开始刹车经过5s,汽车通过的位移是多大?14.新华社北京2008年11月12日电:在中国探月工程一期即“嫦娥一号”圆满成功的同时,中国探月工程二期也已启动.其中,嫦娥二号卫星将于2011年底前完成发射.已知大气压强是由于大气的重力而产生的,某学校兴趣小组的同学,通过查资料知道:月球半径R=1.7×106 m,月球表面重力加速度g=1.6 m/s2.为开发月球的需要,设想在月球表面覆盖一层厚度为h的大气,使月球表面附近的大气压达到p0=1.0×105 Pa,已知大气层厚度h=1.3×103 m比月球半径小得(2)当气体温度达到1.8T1时气体的压强.多,假设月球表面初始没有空气.试估算(1)应在月球表面添加的大气层的总质量m;(2)月球大气层的分子数为多少?(3)分子间的距离为多少?(空气的平均摩尔质量M=2.9×10-2kg/mol,阿伏加德罗常数N A=6.0×1023 mol-1)15.跳伞运动员做低空跳伞表演,他在离地面323 m高处,由静止开始在竖直方向做自由落体运动.一段时间后,立即打开降落伞,以12.5 m/s2的平均加速度匀减速下降,为了运动员的安全,要求运动员落地速度最大不得超过5 m/s.(g=10m/s2)(1)求运动员展开伞时,离地面高度至少为多少?着地时相当于从多高处自由落下?(2)求运动员在空中的最短时间是多少?.16.如图6,一根粗细均匀、内壁光滑、竖直放置的玻璃管下端密封,上端封闭但留有一抽气孔.管内下部被活塞封住一定量的气体(可视为理想气体),气体温度为T1.开始时,将活塞上方的气体缓慢抽出,当活塞上方的压强达到p0时,活塞下方气体的体积为V1,活塞上方玻璃管的容积为2.6V1.活塞因重力而产生的压强为0.5p0.继续将活塞上方抽成真空并密封.整个抽气过程中管内气体温度始终保持不变.然后将密封的气体缓慢加热.求:(1)活塞刚碰到玻璃管顶部时气体的温度;。

北京邮电大学2010-2011学年《微机原理与接口技术》期末考试试题及答案(B)

北京邮电大学2010-2011学年《微机原理与接口技术》期末考试试题及答案(B)

北京邮电⼤学2010-2011学年《微机原理与接⼝技术》期末考试试题及答案(B)北京邮电⼤学2010——2011学年第 1 学期《微机原理与接⼝技术》期末考试试题(B)⼀.填空题(18分, 每空1分)1. 假设AL中存放⼗六进制数0D0H,写成⼆进制是11010000 ,如果它是⽆符号数,则按⼗进制⼤⼩是208 ,如果它是补码表⽰的有符号数,则按⼗进制⼤⼩是-48 ,经过符号扩展成字之后按⼗六进制数是0FFD0 。

2. 在8086汇编语⾔程序设计中,标识符的定义不可以以数字开头。

3.对于变量定义ABC DW 3 DUP(4 DUP (50) ),则变量ABC所分配的字节数为24 。

4. 执⾏完OR AL,0C1H指令后,AL的值为D3H,则标志位SF应为 1 ,标志位CF应为0 。

5. 在8086的中断系统中,不可屏蔽中断NMI的优先级要⽐溢出中断的优先级低。

6. 如果⽤某个字节密码与⼩写字符“a”(ASCII码为⼗进制97)进⾏异或XOR操作,结果字节内容为“0AFH”,则可推断该字节密码为0CEH (按⼗六进制)。

7. 8086 CPU有20 根地址总线,存储器寻址的空间范围是00000~0FFFFFH ,I/O端⼝寻址空间范围是0000~0FFFFH 。

8. 在8253定时/计数器的⽅式3中,如果计数初值为奇数,则OUT端输出的⾼电平持续时间⽐低电平(多或者少⼏个)多⼀个CLK周期。

9. 在8251A的异步串⾏⽅式输出过程中,字符的(最⾼位或最低位)最低位⾸先开始传送。

10. A/D转换器的转换过程需要经过采样、保持、量化、编码等1.构成微机的主要部件除CPU、内存、I/O接⼝外,还有____D____。

(A) 显⽰器(B) 键盘(C) 磁盘(D)系统总线2.在汇编过程中,不产⽣指令码,只⽤来指⽰汇编程序如何汇编的指令称为___B_____。

(A) 汇编指令(B)伪指令(C)机器指令(D)宏指令3.在8259A中,⽤来屏蔽中断源的寄存器是___C____。

物理教学论_试题B

物理教学论_试题B

陕西师范大学2009—2010学年第一学期期末考试物理学与信息技术学院2007级物理学、应电专业物理教学论(B)题号一二三四五六七八九十总分分数答卷注意事项:1、学生必须用蓝色(或黑色)钢笔、圆珠笔或签字笔直接在试题卷上答题。

2、答卷前请将密封线内的项目填写清楚。

3、字迹要清楚、工整,不宜过大,以防试卷不够使用。

4、本卷共 5大题,总分为100分。

一、选择题(本题共10个小题,答案可能是1个或者得分评卷人多个,多选、错选都不得分,每题1分,共10分)1.年光绪皇帝下诏兴学,第二年制订了效法日本学制的,但只颁布而未实行。

( )A 1901,癸卯学制B 1902,壬寅学制C 1902,卯学制D 1901,壬寅学制2.物理教学艺术的准则包括:几个方面。

( )A 科学性准则B 简明性准则C 整体性准则D 针对性准则3. 3.学习物理除具有一般思维活动的特点外,还有学习物理学科思维的特殊性。

中4. 学生学习物理的思维特征表现在:思维的间接性、思维的概括性、思维的精确性、5. 思维的( )A 联系性B 发散性C 直接性D 逻辑性4.新课程改革,以“课程标准”代替“教学大纲”。

这种代替不仅仅是名称的变化,其中还包括以下()的实质性的变化。

( )A 课程取向从精英教育转向大众教育B 课程目标着眼于学生素质的全面提高C 从关注教师教学转向关注课程实施过程D 课程管理从刚性转向弹性5.全日制义务教育物理课程标准阐明了科学探究在义务教育阶段物理课程中的重要意义和原则要求。

并提出了科学探究过程包含的七个要素。

除去提出问题、猜想与假设、制定计划于设计实验、进行实验与收集数据外还有( )A 分析与论证B 反思C 评估D 交流与合作6.如图所示,皮带平面可当作是一个与水平方向夹角为a的斜面,皮带足够长并作逆时针方向的匀速转动,将一质量为m的小物块轻轻放在斜面上后,物块受到的摩擦力:()A 一直沿斜面向下.B 一直沿斜面向上.C 可能先沿斜面向下后沿斜面向上.D 可能先沿斜面向下后来无摩擦力.7.质量分别为m、2m的A、B两同种木块用一轻弹簧相连.当它们沿着斜面匀速下滑时,弹簧对B的作用力为:()A 0B 向上C 向下D 倾角未知.无法确定8.如图所示,线段OA=2AB,A、B两球质量相等,当它们绕O点在光滑的水平桌面上以相同的角速度转动时,两线段拉力T AB∶T OA为:()A 3∶2B 2∶3C 5∶3D 2∶59.三块完全相同的木块从同一高度由静止开始下落,A块自由下落,B块在开始下落的瞬间即被一水平飞来的子弹击中(击穿出),C块在下落到一半距离时被另一相同的水平飞来的子弹击中(未穿出),则三木块落地时间关系为:()A t A=t B=t CB t A<t B<tC C t A<t B=t CD t A=t B<t C10.光滑地面上放着两钢球A和B,且m A<m B上固定着一轻弹簧,如图所示.现在A以速率v0去碰撞静止着的B球时,有( )A 当弹簧压缩量最大时,A、B丽球的速率都最小B 当弹簧恢复原长时,A球速率为零C 当A球速率为零时,B球速率最大D 当B球速率最大时,弹簧的势能为零二、填空题(本题共10小题,每小题2分,合计20分)得分评卷人1.2001年,教育部公布了《》,同年秋季入学,新一轮基础教育课程改革开始在实验.2.中学生学习物理的兴趣特征可分为四个不同的层次,这些层次分别是:、、因果认识的兴趣和概括性认识的兴趣.3.教学语言是最基本的教学技能,在物理教学中,在物理教学中对教学语言运用由三方面的要求:要注意语言的 、注意语言的 、注意语言的简明性和启发性.4.评价一个测验质量一般有四个指标,它们是 、 、难度和区分度。

2010级2010-2011学年下学期期末测试

2010级2010-2011学年下学期期末测试

2010级2010-2011学年下学期期末测试高一化学本试卷分选择题非选择题两部分,共100分,考试时间90分钟。

可能用到的相对原子质量: H:1 C:12 O:16 S:32 Br:80一.选择题(每小题只有一个选项符合题意,本题包括16个小题,每题3分,共48分)1.19世纪中叶,俄国化学家门捷列夫对化学学科的巨大贡献是A.提出了原子学说B.提出了元素周期律C.提出了分子学说D.制定了科学的元素周期表2、通常用于衡量一个国家石油化工发展水平的标志是A.石油的产量 B.乙烯的产量C.天然气的产量 D.汽油的产量3.正确掌握化学用语是学好化学的基础。

下列化学用语中正确的是A.乙烯的结构简式为CH2CH2 B.乙醇的结构简式C2H6OC.Ca2+的结构示意图为 D.羟基的电子式:4.下列说法不.正确的是A.16O、18O互为同位素 B.金刚石和石墨互为同素异形体C.分子式符合通式C n H2n+2且n值不同的两种烃互为同系物D.互为同分异构体5.美国科学家将铅和氪两种元素的原子核对撞,获得了一种质子数为118,质量数为293的新元素,则该元素原子核内的中子数和核外电子数之差为A.57 B.47 C.61 D.1756、有机物种类繁多的主要原因是()。

A、自然界中存在着多种形式的、大量的有机物B、有机物的分子结构十分复杂C、碳原子能与其他原子形成四个共价键,且碳原子之间也能相互成键D、有机物除含碳元素外,还含有其他多种元素7.某有机物的结构简式为CH2=CH —CH2OH。

下列关于该有机物的叙述不正确...的是 A.能与金属钠发生反应并放出氢气B.此有机物中有三种官能团:碳碳双键、羟基、甲基C.能在催化剂作用下与H2发生加成反应D.在浓H2SO4催化下能与乙酸发生酯化反应8.自然界为人类提供了多种多样的营养物质,下列有关营养物质的说法正确的是A.蔗糖、淀粉、油脂等都可以发生水解反应B.摄入人体的纤维素在酶的作用下能水解为葡萄糖C.糖类、蛋白质、油脂都属于天然高分子化合物D.所有糖类物质都有甜味,但不一定都溶于水9.可逆反应2SO2+O22SO3在密闭容器中达到了平衡,下列说法正确的是A.SO2和O2不再化合,反应停止了B.容器内压强保持不变C.SO2、O2和SO3的浓度相等D.SO2、O2和SO3的物质的量之比为2:1:210.下列各组液体混合物,能用分液漏斗分离的是A.乙酸乙酯和乙醇 B.苯和溴苯C.苯和水 D.乙醇和水11.下列关于右图所示装置的叙述,不正确的....是A.铁是负极,铁失去电子形成Fe2+进入溶液B.铁片质量逐渐减少,碳棒上有气泡产生C.电流由铁片经导线沿外电路流向碳棒D.该装置总的化学反应为2442Fe+H SO FeSO+H==↑12、下列说法正确的是A.反应是放热还是吸热是由反应物和生成物所具有的能量的相对大小决定的B.放热反应在常温下一定容易进行C.需加热才能发生的反应一定是吸热反应D.质量数相同的原子,其化学性质也一定相同13.下列反应中,属于取代反应的是①CH3CH=CH2+Br 2CH3CHBrCH2Br②CH3CH2OH CH2=CH2+H2O③CH3COOH+CH3CH2OH CH3COOCH2CH3+H2O④C6H6+HNO 3C6H5NO2+H2OA. ①②B.③④C.①③D.②④14.分子式为C5H11Br的同分异构体共有(不考虑立体异构)A.6种B.7种C. 8种D.9种15、常温常压下,取下列四种有机物各1mol,分别在足量的氧气中燃烧,消耗氧气最多的是()A.C2H5OH B.CH4C.C3H8O2D.C2H4O16、下列性质的递变规律不正确...的是A.NaOH、KOH、CsOH碱性依次增强B.HC1O4、H2SO4、H3PO4的酸性依次减弱C.HCl、H2S、PH3稳定性依次减弱D. Al、Mg、Na的原子半径依次减小二.(本题包括7大题,共52分.)17.(6分)合理、高效利用金属矿物,将其中的金属从其化合物中还原出来用于生产和制造各种金属材料,这一过程在工业上称为金属的冶炼。

(完整版)石家庄铁道大学混凝土结构设计期末试题.

(完整版)石家庄铁道大学混凝土结构设计期末试题.

石家庄铁道大学2012-2013学年第1学期2010 级本科班期末考试试卷(A)课程名称:混凝土结构设计原理A (I )任课教师: 考试时间: 120 分钟 学号: 姓名: 班级: 考试性质(学生填写):正常考试( )缓考( )补考( )重修( )提前修读( )一、选择题(每空1.5分,共15分)1. 为减小混凝土徐变对结构的影响,以下措施正确的是( )A .提早对结构施加荷载;B .提高混凝土的密实度和养护温、湿度;C .减少集料所占的体积;D .加大水灰比。

2. 下面关于混凝土结构设计的一些说法,不正确的是( )A .我国公路桥梁结构的设计基准期取为100年;B .《公路桥规》规定桥梁构件的承载能力极限状态设计的原则是作用效应最不利组合的设计值必须小于或等于结构抗力的设计值;C .在结构安全等级相同时,延性破坏的目标可靠指标大于脆性破坏的目标可靠指标;D .结构的可靠指标β越大,则失效概率P f 越小,可靠概率P r 越大3. 下列作用中属于永久作用的是( )A .温度作用B .基础变位作用C .汽车荷载D . 人群荷载4. 钢筋混凝土双筋梁中,受压钢筋s A '的抗压强度得到充分利用的条件是( )A .x ≥2sa ' B .x ≤2s a ' C .b ξξ≥ D .b ξξ≤ 5. 梁的抵抗弯矩图外包住弯矩包络图,能够保证梁的( )A .正截面抗弯承载力B .斜截面抗弯承载力C .斜截面抗剪承载力D .正、斜截面抗弯承载力6. 无腹筋梁沿斜截面破坏时,当裂缝一出现,很快形成一条主要斜裂缝,并迅速延伸至荷载作用点,使梁斜向被拉断,这种破坏称为( )A .少筋破坏B .斜拉破坏C .剪压破坏D .斜压破坏7. 一钢筋混凝土T 形截面简支梁,b =250mm ,h =550mm ,f b '=600mm ,f h '=100mm 。

已知腹板受扭塑性抵抗矩tw W =1.46×107mm 3,受压翼缘受扭塑性抵抗矩tf W '=1.75×106mm 3。

安徽工业大学《大学英语》2009-2010学年第二学期期末试卷B卷

安徽工业大学《大学英语》2009-2010学年第二学期期末试卷B卷

1---5: : : : : : : : 1. (an advice → 5. (such many → many such )7. ( since → because )→ → and ) 3. (car’s → 答案I. There are 25 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. ( 25%) 1-5:DAACB 6-10 CABDA 11-15 ACBAC 16-20 AADAD 21-25 ADDBDII. Select an appropriate item from the choices given in brackets ( 25%)in the possession of, the university, begging, In case of, within reach 6---10 beside ourselves, whom, sunken, hadn’t told, being asked 11—15: perish, lighted, that, because, getting16-20did, experience, is, was, relations 21-25onion, more of a sportsman, ear, whatever, all these last fewIII. Sentence Transformation (according to the requirement in the brackets): (20%)1. Any driver not having a licence ought to be sent to jail right away.2. Used economically, one tin will last for at least six weeks.3. She stood back and looked at him, her face smiling radiantly.4. Not only did Jimmy pass the exam, but he got good marks for all the courses he hadtaken.5. There were people who believed that an ancient city lay somewhere in the mountains.6. Thoroughly exhausted, they crawled into their sleeping bags.7. There is not only concision in these lines but also elegance.8. She was sitting quietly in the garden as if /as though nothing had happened to her.9. It is expected that electricity supply will be adequate next year. / Electricity supply isexpected to be adequate next year.10. Nothing is hard in the world for anyone who dares to scale the heights.IV. Error Correction (10%)2. (militias → 4. ( so → car)6. (White House → The White House)8. (drunken → drunk )9. (any more a fish a fish any more )10. ( although though )V. Translate the following sentences ( 20%)1. His health won’t improve unless he gives up smoking at once.2. Rebuilding this canal has already brought many benefits to our national economy.3. At the sound of footsteps outside the window, I stole out of the room, but there was nothing to be seen.4. She sat there silent, tears streaming down her cheeks. advice)militia)6. 他不是画家,也不是作家。

商法基础2010级试卷B卷

商法基础2010级试卷B卷

2011 至 2012 学年第 一 学期 商法基础 试卷B 卷出卷教师:冯江菊 适用班级:国人资、国市营、国会计2010级各班 考试方式:闭 卷 本试卷考试分数占学生总评成绩的100 %复查总分 总复查人(本题20分)一、判断题(共20题,每题1分)正确的说法,请在下面表格中其相应题号下面的空格内打“√”;错误的说法,请在下面表格中其相应题号下面的空格内打“×”。

1.法人的民事行为能力和民事权利能力同时产生,同时消灭。

2.民事法律行为既包括合法行为,也包括非法行为。

3.业主对建筑物专有部分以外的共有部分,享有权利,承担义务;但可以放弃权利不履行义务。

4.张三将自己电脑出卖并交付给李四时约定,李四的所有权存续期间为5年,该约定有效。

5.地役权是为自己土地便利而使用他人土地的权利。

6.身体受到伤害要求赔偿的诉讼时效为2年。

7.国有土地上设立的建设用地使用权只能通过划拨的方式取得。

8.个人独资企业的财产不足以清偿债务的,投资人应当以其个人的其他财产予以清偿。

9.合伙人可以是自然人,也可以是法人或其他经济组织。

10.合伙人之间转让在合伙企业中的全部或者部分财产份额时,须经其他合伙人一致同意。

11.有限合伙企业中,有限合伙人可以货币、实物、知识产权以及劳务等形式出资。

12.中外合资经营企业中,外方在注册资本中的投资比例不得低于25%。

13.子公司以本公司的名义进行经营活动,不具有独立的法人资格。

14.修改有限责任公司的公司章程,须经2/3以上的股东通过。

15.股份有限公司董事会决议的表决实行一人一票,作出决议须经全体董事的过半数通过。

16.根据《公司法》的规定,一人有限责任公司的注册资本最低限额为人民币3万元。

《商法基础》试卷 第 1 页 ( 共 8 页 )17.婚姻、收养、监护等有关身份关系的协议及政府采购合同不适用合同法的调整。

18.要约邀请不同于要约,寄送价目表的行为是要约邀请。

2010级语文期末试题

2010级语文期末试题

2010级语文期末试题(2011.1)姓名成绩第Ⅰ卷(选择题,共50分)一、(24分,每小题2分)1.下列词语中加点字的注音完全正确的一项是()A.萌芽(mãng)骸骨(hái)扼杀(â)翩翩起舞(piān)B.抨击(pīng)邓骘(zhì)深谙(ān)锲而不舍(qiâ)C.篆文(zhuàn)倭仁(wěi)鱼鳍(qí)雍容华贵(yōng)D.帷幄(wî)曝晒(bào)撰文(zhuàn)孜孜以求(zǐ)2.下列词语中书写完全正确的一组是()A.泰然自若抱头鼠窜无是生非歪讲曲解B.满不讲理心照不宣返朴归真惟妙惟肖C.和颜悦色索然无味立竿见影善办交涉D.陈词滥调素味平生屡见不鲜捧腹大笑3.下列各句中,加点的成语使用恰当的一项是()A.艺术家们匠心独运,不久这一方花岗岩就变成了一座充满灵气的石雕。

B.这个盗窃犯罪团伙作案范围遍及全县各乡,所窃物品包罗万象。

C.谈起电脑、互联网,这个孩子竟然说得头头是道,左右逢源,使在场的专家也惊叹不已。

D.坐在飞机上,俯瞰苍茫大地,一条条河流萦回如带,一座座山峰,摩肩接踵。

4.依次填入下列横线处的关联词正确的一项是()客观世界有无限多样的矛盾,人的认识只能一点一滴地、逐个逐步地把握,通过有限去认识无限,以正确把握客观为宗旨的实事求是活动也只能是一个无限发展的过程。

A.尽管却只有因为 B.虽然则只能因此C.尽管却只能因为D.虽然则只有因此5.将下列三句话填在下面的横线上,顺序最恰当的一项是()①我们性格、习惯,是母亲传给的。

②我之能成为一个不十分坏的人,是母亲感化的。

③我之能长大成人,是母亲的血汗灌养的。

生命是母亲给我的,。

A.①②③B.③②①C.①③②D.③①②6.下列各句表意明确,没有语病的一句是()A.对于环境污染的问题,早已引起了各国科学家的重视。

B.荔枝生产的现代化,应该能够逐步满足广大人民的生活需要。

2009-2010工程材料与成形技术期末考试3套试卷及答案北华大学机械工程学院

2009-2010工程材料与成形技术期末考试3套试卷及答案北华大学机械工程学院

缺陷。
8. 在炼钢中,Si 是作为
加入钢中的。
9. 铅在室温下的塑性变形属于
加工,金属冷加工和热加工是以该材
料的
温度区分的
五、 判断题(每题 1 分,共 6 分)
1. S、P 都是碳钢中的有益元素。


2. T8 钢属于碳素工具钢,它也是高碳钢。


3. P 会引起钢的冷脆性,即使钢在室温下的塑性急剧下降。
)%C。
),含碳量约为(
)%C,含 Cr 量约为(
)%Cr,
含 Mo 量小于( 6. 2Cr13 名称(
)%Mo,含 V 量小于(
)%V。
),含碳量约为(
)%C,含 Cr 量约为(
)%Cr。
五、简答题(每题 6 分,共 24 分)
本题得分
1.T12 钢加热到 770℃后用图示各种方法冷却,分析其所得的组织。
A、盐水 B、水 C、矿物油 7 为了改善 T12 钢的切削性能,一般都采用( )热处理方法。
A、淬火+高温回火 B、完全退火 C、正火 D、球化退火 四、确定下列各金属材料的名称、碳含量、合金元素含量。(每空 0.5 分,共 10 分) 本题得分
1. T12 钢名称(
),含碳量约为(
)%C。
2. 45 钢名称(
4 过共析钢含碳量范围是( )?
A. 2.11% ~ 4.3% B.0.77% ~ 2.11% C. 0.008% ~ 2.11% D. 0.53% ~ 2.11%
5 在切应力的作用下,晶体的滑移发生在特定的晶面和晶向上,这些晶面和晶向一般都 是原子排列密度( )晶面和晶向。
A、最大 B、最小 C、最大和最小都可能 6 以下淬火介质中,( )的冷却能力最大。

大学英语语法试卷B以及答案

大学英语语法试卷B以及答案

⼤学英语语法试卷B以及答案南阳师范学院2010-2011学年第⼆学期2010级课程期终考试试卷(B )Ⅰ. MULTIPLE CHOICE : There are forty sentences in this section. Beneath each sentence thereare four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence. Mark your answers on Answer Sheet. (1×40=40)1. Mr. and Mrs. Burns feel more comfortable on a ship than they would be if they ______________any other way.A. would travelB. travelledC. are travellingD. have travelled2. We______________ that Jim be there.A. hopeB. wishC. expect D ask3. Lucy is glad she didn’t stay on the farm. She______________ bored.A. may beB. will beC. could beD. might have been4. The dean of studies would have come to see you had it been possible, but he ______________so busy then.A. had beenB. wasC. wereD. would be5. They would certainly have come and helped us ______________time.A. did they haveB. had they hadC. had they have D would they have6. If you were in better health, we______________ you to join in the work last week.A. would have allowedB. would allowC. should allowD. had allowed7. She cried for her______________ lover.A. departedB. being departedC. departingD. having departed8. ______________ in an importment examination, one of the students in his class lost interest in his workA. FailingB. FailedC. Having been failedD. Having Failed9. If it______________ tomorrow, I’ll stay at home.A. rainedB. will rainC. had rainedD. rains10. “It’s getting very late.” “Yes, it’s time______________.”A. that we leftB. we leaveC. we’ll leaveD. we have left11.He______________ a bus to go there, but he preferred to walk.A. should have takenB. could takeC. could have takenD. hadn’t taken12. ______________ the English examination I would have gone to the concert last Sunday.A. In spite ofB. But forC. Because ofD. As for13.______________, we can hardly get to the station by six o’clock.A. As it will beB. As it seemedC. As it isD. As if it seems14. We hung out a lantern lest he______________ lost in the mist.A. getsB. getC. will getD. got15. It is quite natural that such fears______________.A. riseB. should ariseC. should riseD. are arisen16. I’m sorry to______________ your private thoughts, but I think we should get on with some work.A. break inB. break onC. break in onD. break out17. Do you think he will______________ a cook wearing that hat?A. pass forB. pass asC. pass throughD. pass on18. She is not______________ what she eats and what she wears.A. special forB. particular forC. special withD. particular about19. ______________ it is expensive or not is the crucial question.A. ThatB. WhetherC. If20. I know nothing about his journey______________ he was likely to be away forthree months.A. ifB. unlessC. untilD. except that21. ______________ is the richest man in this town?A. Whom do you thinkB. Who do you thinkC. Do you think whoD. What do you think22. The size of the audience,______________ we had expected, was well over fivehundred.A. whomB. thatC. whoD. as23. Do you know______________ the population of the country is?A. how manyB. how muchC. whichD. what24. ______________ the compass was first invented in China.A. It is known thatB. All is known thatC. As is known thatD. What is known that25. The results are quite different______________.A. that we expectedB. all which we expectedC. what we expectedD. those of which we expected26. In some coun tries,______________ is called “equality” does not really mean equal rights for all people.A. whichC. thatD. one27. ______________ I should like to go, I can’t go right now.A. So muchB. Much asC. As muchD. Much so28. ______________ the sun is the central body of the solar system, so the nucleus is the core of the atom.A. WhenB. IfC. Now thatD. Just as29. We can only do the job for you______________ the work is paid for in advance.A. just asB. now thatC. in thatD. on condition that30.He didn’t seem to mind their watching TV______________ he was trying to study.A. untilB. whileC. as soon asD. so that31.She doesn’t let him leave the train______________ he get lost.A. ifB. becauseC. in caseD. as32. ______________ the door than somebody started knocking on it.A. I had closed no soonerB. No sooner have I closedC. I had no sooner closedD. No sooner did I close33. ______________, I can not agree to his suggestion.A. Much do I respect himB. As I respect him muchC. Much as I respect himD. Now that I respect him34. Reading is to the mind______________ food is to the body.A. whileB. whatC. thatD. as if35. He is ______________ a writer as a reporter.A. moreB. ratherC. not so muchD. not much36. The crime was not discovered till 48 hours later, ______________ gave the criminals plenty of time to get away.A. whenB. whichC. thatD. it37. This is the only English-Chinese dictionary______________ I have.A. whatB. thatC. asD. which38. He talked of the man and the books______________ interested him.A. whichB. whoC. thatD. with which39. ______________,I must do another experiment.A. Be it ever so lateB. It is ever so lateC. It be ever so lateD. So late it be ever40. “ You look rather tired.” “______________.”A. So you areB. So I amC. So am ID. So do IⅡ. MATCHING:Ⅲ. READING COMPREHENSION:In this section there are two passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer. Mark your answers on Answer Sheet Two. (2×10=20)AYou never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜⽔艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane —the area least subject to impact —from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000°F. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.51. What does the author say about the black box?A) It ensures the normal functioning of an airplane.B) The idea for its design comes from a comic book.C) Its ability to ward off disasters is incredible.D) It is an indispensable device on an airplane.52. What information could be found from the black box on the Yemeni airliner?A) Data for analyzing the cause of the crash.B) The total number of passengers on board.C) The scene of the crash and extent of the damage.D) Homing signals sent by the pilot before the crash.53. Why was the black box redesigned in 1965?A) New materials became available by that time.B) Too much space was needed for its installation.C) The early models often got damaged in the crash.D) The early models didn't provide the needed data.54. Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?A) To distinguish them from the colour of the plane.B) To caution people to handle them with care.C) To make them easily identifiable.D) To conform to international standards.55. What do we know about the black boxes from Air France Flight 447?A) There is still a good chance of their being recovered.B) There is an urgent need for them to be reconstructed.C) They have stopped sending homing signals.D) They were destroyed somewhere near Brazil.BThere were smiling children all the way. Charily they knew at what time the train passed their homes and they made it their business to stand along the railway, wave to complete strangers and cheer them up as they rushed towards Penang. Often whole families stood outside their homes and waved and smiled as if those on the trains were their favorite relatives. This is the simple village people of Maiaysia. I was moved.I had always traveled to Malaysia by plane or car, so this was the first time I was on a train. I did not particularly relish the long train journey and had brought along a dozen magazines to read and reread. I looked about the train. There was not one familiar face. I sighed and sat down to read my Economics.It was not long before the train was across the Causeway and in Malaysia. Johore Baru was just another city like Singapore, so I was tired of looking at the crowds of people as they hurried past. As we went beyond the city, I watched the straight rows of rubber trees and miles and miles of green. Then the first village came into sight, Immediately I came alive; I decided to wave hack.From then on my journey became interesting. I threw my magazines into the waste basket and decided to join in Malaysian life. Then everything came alive. The mountains seemed to speak to me. Even the trees were smiling. I stared at everything as if I was looking at it for the first time.The day passed fast and I even forgot to have my lunch until I felt hungry. I looked at my watch and was surprised that it was 3:00 pm. Soon the train pulled up at Butterworth. I looked at the people all around me. They all looked beautiful. When myuncle amved with a smile, I threw my arms around him to give him a warm hug (拥抱). I had never done this before. He seemed surprised and then his weather-beaten face warmed up with a huge smile. We walked arm in arm to his car.I looked forward to the return journey.56.The author expected the train trip to be______________.A. adventurousB. pleasantC. excitingD. dull57. What did the author remember most fondly of her train trip?A. The friendly country people.B. The mountains along the way.C. The crowds of people in the streets.D. The simple lunch served on the train.58. Which of the following words can best take the place of the word "relish" in the second paragraph?A. chooseB. enjoyC. prepare forD. carry on59 Where was the writer going?A. Johore Baru,B. The Causeway.C. Butterworth,D. Singapore.60. What can we learn from the story?A. Comfort in traveling by t rain.B. Pleasure of living in the country.C. Reading gives people delight.D. Smiles brighten people up.complete the passage if inserted in the corresponding blanks. Mark thebest choice for each blank on Answer Sheet.(1×15=15)Although credit cards are becoming a more acceptable part of the financial scene, they are still regarded with suspicion by many people as a major part of the “live now, pay 61 ” habit. They provide encouragement to spend more money. Of course it is only the fool who follows the temptation to live, temporarily at least, 62 his means, and such people would no doubt 63 to do so even without credit cards.Advertisers have, however, promoted a growing realization of the 64 of these small pieces of plastic. They do away with the need to carry large 65 of cash and are always useful 66 emergencies.All the credit card organizations 67 interest on a monthly basis which may work out as high as 25 percent a year, yet careful use of a card can mean that you 68 up to seven weeks interest-free credit. Using the card abroad, 69 items frequently take a long time to be included on your account, can 70 this period even further.It is worthwhile shopping around before 71 on a particular credit card. It is necessary to consider the amount of credit 72 : interest rates, which may vary 73 , the number and range of outlets, though most cards 74 major garages, hotels, restaurants and department stores. And of course, what happens if your card is lost or stolen. A credit thief may become suddenly wealthy, particularly if there is a 75 in reporting the loss of the card.However, if used wisely, a credit card can cost nothing, or at least help to tide you over a period of financial difficulty.61. A. lately B. sooner C. later D. early62. A. ahead B. beyond C. under D. over63. A. tempt B. force C. manage D. seek64. A. welfare B. advantages C. weak points D. disadvantages65. A. bills B. numbers C. volumes D. amounts66. A. in B. on C. for D. about67. A. ask B. require C. charge D. offer68. A. bring B. obtain C. take D. put69. A. where B. when C. that D. which70. A. postpone B. enlarge C. extend D. excluded71. A. making B. buying C. using D. deciding72. A. ratified B. granted C. agreed D. proved73. A. slightly B. highly C. lowly D. heavily74. A. use B. supply C. cover D. apply75. A. luck B. tendency C. need D. delayⅤ. TRANSLATION(2×10=20)Mark your answers on Answer Sheet.SECTION A CHINESE TO ENGLISHTranslate the following text into English. Write your answers on ANSWER SHEET.76.你不能光凭封⾯来判断⼀本书。

湘南学院 2010级 生理学 康复考试试卷B卷

湘南学院 2010级 生理学 康复考试试卷B卷

湘南学院22010学年度第2学期2010级康复治疗学专业本科层次期末/补考课程____生理学__试题答案课程代码:14030181 考核方式:闭卷考试考试时量:120分钟试卷类型B卷一、单项选题(本大题每一小题的备选答案中,只有一个选项答案是正确的,请把你认为正确答案的选项,填入本大题的答题框序号下方。

多选不给分。

每题1分,共40分。

)1. 沟通体液与外界环境进行物质交换的重要媒介是A.细胞内液B.淋巴液C.脑脊液D.血浆2.下列生理过程属于正反馈调节的是A.降压反射B.血糖浓度的调节C.血液凝固D.化学感受器反射3.“望梅止渴”属于A.正反馈B.条件反射C.负反馈D.非条件反射4.载体扩散的饱和现象是因为A.跨膜梯度变小B.疲劳C.能量匮乏D.载体数量决定的转运极限5.小肠上皮细胞从肠腔吸收葡萄糖是通过A.入胞B.载体转运C.继发性主动转运D.原发性主动转运6.人工增加离体神经纤维浸浴液中K+浓度,动作电位上升的幅度将A.不变B.增大C.减小D.先增大后减小7.将刺激电极的正极置于膜外、负极置于膜内,将导致膜电位A.去极化B.无变化C.反极化D.超极化8.动作电位传播的机制是A.紧张性扩布B.局部兴奋C.局部电流D.振动波传递9.骨骼肌兴奋-收缩耦联中起关键作用的离子是A. Na+B. Ca2+C. Cl—D. K+10.有机磷农药中毒时,可使A.乙酰胆碱释放减少B.胆碱酯酶活性降低C.胆碱酯酶活性升高D.乙酰胆碱释放增多11.下列哪一项可以影响肌肉舒张速度的因素A.横桥数目B.肌球蛋白ATP酶活性C.肌质网Ca2+泵活性D.肌钙蛋白的Ca2+亲和力12.心室肌细胞动作电位的主要特征是A. 0期去极化速度快B.形成平台期C. 0期去极化幅度高D.4期去极化速度快13.超常期内心肌兴奋性高于正常,所以A.兴奋传导速度高于正常B.动作电位幅度大于正常C.0期去极化速率高于正常D.刺激阈值低于正常14.心脏正常起搏点位于A.心房肌B.窦房结C.房室交界D.房室束15.在心动周期中,心室血液充盈主要是由于A.心房收缩挤压作用B.心室收缩挤压作用C.心室舒张的抽吸作用D.地心吸引力促静脉回流作用16.用于分析比较不同身材个体心功能的常用指标是A.心指数B.射血分数C.心脏作功量D.心力储备17.正常人心率超过180次/分,心输出量减少的主要原因是A.等容收缩期缩短B.射血期缩短C.充盈期缩短D.等容舒张期缩短18.一般情况下,舒张压的高低主要反映A.外周阻力大小B.循环血量多少C.心肌收缩力的强弱D.心率的快慢19.生理状态下,组织液生成与回流主要取决于A.组织液静水压B.血浆胶体渗透压C.组织液胶体渗透压D.毛细血管血压20.关于中心静脉压的叙述,错误的是A.是右心房和胸腔内大静脉的血压B.可反映心脏的射血能力C.可作为临床输血、输液量的指标D.正常值为4~12mmHg21.能使毛细血管交替开放的物质是A.血管升压素B.肾上腺素C.局部代谢产物D.激肽22.平静呼气末胸膜腔内压A.等于大气压B.低于大气压C.高于大气压D.与吸气末期相等23.有关肺顺应性的叙述,错误的是A.容易扩张的肺,顺应性大B.可用单位压力引起的容积变化来衡量C.与非弹性阻力成正变关系D.与弹性阻力呈反变关系24.若潮气量为500 ml,呼吸频率为16次/ min,此时肺泡通气量为A.2.4 L/minB.4.0 L/minC.5.6 L/minD.8.0 L/min25.下列哪一项能促进肺泡表面活性物质合成A.多巴胺B. 糖皮质激素C.盐皮质激素D.胰岛素26.血液运输O2的主要方式是A.物理溶解B.与血红蛋白结合C.与血浆白蛋白结合D.与纤维蛋白原结合27.贫血患者Hb浓度降低,但一般并不出现呼吸加强,这是因为A.颈动脉体血流量代偿性增加B.动脉血Hb氧饱和度正常C.动脉血氧含量正常D.动脉血PO2正常28.切断动物双侧迷走神经后呼吸出现A.呼吸频率加快B.呼吸幅度减少C.吸气时相缩短D.呼吸频率减慢,幅度增大29.动作电位到达突触前膜引起递质释放与下列哪种离子的跨膜移动有关A.Ca2+内流B.K+外流C.Na+内流D.Cl—内流30.反射活动后发放现象的结构基础是神经元之间的A.环式联系B.单线式联系C.辐散式联系D.链琐式联系31.突触前抑制产生是由于A.兴奋性递质释放减少B.递质耗竭C.释放抑制性递质D.抑制性中间神经元兴奋32.丘脑特异投射系统的主要作用是A.维持觉醒B.调节内脏活动C.引起牵涉痛D.引起特定的感觉33.某人在意外事故中脊髓受到损伤,横断面以下的一切躯体运动与内脏反射活动丧失。

(华南理工大学)机械设计试题B2010+答案

(华南理工大学)机械设计试题B2010+答案

,考试作弊将带来严重后果!华南理工大学期末考试2010《机械设计》试卷(B)1. 考前请将密封线内填写清楚;所有答案请直接答在试卷上;.考试形式:闭卷;1分,共10分)只受预紧力作用的螺栓连接,在强度计算时,将所受的拉力(预紧力)乘以1.3,就可按拉伸强度计算,这是由于⎽⎽⎽⎽。

A)安全可靠B)保证足够的预紧力C)考虑扭剪应力D)防止松脱为了提高蜗杆传动效率,,在润滑良好条件下,最有效的是采用哪种方法?⎽⎽⎽⎽。

A)单头蜗杆B)多头蜗杆C)大直径系数蜗杆D)提高蜗杆转速当轴作单向回转时,若键位于轴上方,平键工作面在键的⎽⎽⎽⎽。

A)上下两面B)上表面或下表面C)一侧面D)两侧面同种型号材质的单根V带所能传递的功率,主要取决于⎽⎽⎽⎽。

A)传动比B)中心距a和带长L d C)小轮包角α1D)小轮直径D1和带速v在蜗杆传动中,对于滑动速度v1≥3 m/s的重要传动,应采用⎽⎽⎽⎽做蜗轮齿圈材料。

A)ZCuSn10P1 B)HT200 C)45钢调质D)20CrMnTi渗碳淬火齿轮传动引起附加动载荷和冲击振动的根本原因是⎽⎽⎽⎽。

A)齿面误差B)周节误差C)基节误差D)中心距误差E)以上都不是直齿圆锥齿轮的强度计算是以⎽⎽⎽⎽为计算依据的。

A)大端当量圆柱齿轮B)平均分度圆柱齿轮C)平均分度圆处的当量圆柱齿轮8.为提高齿轮传动的抗点蚀能力,有人提出下列几种方法,你认为正确的是哪几种⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽?A)采用闭式传动B)加大中心距C)提高齿面硬度D)减少齿数,加大模数9.按基本额定动负荷选定的滚动轴承,在预定使用期限内其破坏率最大为⎽⎽⎽⎽⎽⎽⎽⎽。

A.1% B.5% C.10% D.50%10.根据轴的承载情况,的轴称为转轴。

A.既承受弯矩又承受转矩B.只承受弯矩不承受转矩C.只承受转矩不承受弯矩D.承受较大轴向载荷二、填空题(每小题2分,共20分)1.对于重要的螺栓连接,在设计时尽可能不采用小于M12的螺栓,原因是⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽⎽。

12-13-1 语言学概论期末考试题B (内附标准答案)

12-13-1 语言学概论期末考试题B (内附标准答案)

东北林业大学2012-2013学年第一学期2010级英语专业期末考试试题B 考试科目:英语语言学概论考试时间:120分钟试卷总分:100分Part I True or False (10 points) Directions: Decide whether each of the following statements is True or False.1. English consonants can be classified in terms of place of articulation and the part of thetongue that is raised the highest.2. Pragmatics is different from semantics in that pragmatics studies meaning not in isolation,but in context.3. Phonemes are the smallest meaningful units of sounds.4. Phonetically, the stress of a compound always falls on the first element, while the secondelement receives secondary stress.5. Inflectional morphemes manifest various grammatical relations or grammatical categoriessuch as number, tense, degree, and case.6. In a complex sentence, the two clauses hold unequal status, one subordinating the other.7. The meaning of a sentence is the sum total of the meanings of all its components.8. Austin made the distinction between a constative and a performative.9. Black English is linguistically inferior to standard English because Black English is not assystematic as standard English.10. The figurative use of language has the effect of making the concepts under discussion moredomestic and acceptable.Part II Multiple Choices (40 points) Directions: There are four choices following each statement. Mark the choice that can best complete the statement.1. Which of the following is not a design feature of human language?A. ArbitrarinessB. DisplacementC. DualityD. Meaningfulness2. According to F. de Saussure, ____ refers to the abstract linguistic system shared by all themembers of a speech community.A. paroleB. performanceC. langueD. Language3. A historical study of language is a ____ study of language.A. synchronicB. diachronicC. prescriptiveD. comparative4. Language is said to be arbitrary because there is no logical connection between _________and meanings.A. senseB. soundsC. objectsD. ideas5. The sounds produced without the vocal cords vibrating are ____ sounds.A. voicelessB. voicedC. vowelD. consonantal6. __________ is a voiced alveolar stop.A. [z]B. [d]C. [k]D. [b]7. The assimilation rule assimilates one sound to another by “copying” a feature of a sequential phoneme, thus making the two phones ____________.A. identicalB. sameC. exactly alikeD. similar8. Saussure took a (n)__________ view of language, while Chomsky looks at language from a ________ point of view.A. sociological…psychologicalB. psychological…sociologicalC. applied… pragmaticD. semantic and linguistic9. Bound morphemes are those that ___________.A. have to be used independentlyB. can not be combined with other morphemesC. can either be free or boundD. have to be combined with other morphemes.10. “-s” in the word “books” is _______.A. a derivative affixB. a stemC. an inflectional affixD. a root11. The sentence structure is ________.A. only linearB. Only hierarchicalC. complexD. both linear and hierarchical12. “John married a blond heiress.”__________ “John married a blond.”A. is synonymous withB. is inconsistent withC. entailsD. presupposes13. ___________ refers to the phenomenon that words having different meanings have thesame form.A. PolysemyB. SynonymyC. HomonymyD. Hyponymy14. _________ deals with the relationship between the linguistic element and the non-linguisticworld of experience.A. ReferenceB. ConceptC. SemanticsD. Sense15. ___________ is a way in which the meaning of a word can be dissected into meaningcomponents, called semantic features.A. Predication analysisB. Componential analysisC. Phonemic analysisD. Grammatical analysis16. Syntax is the study of ______.A. language functionsB. sentence structuresC. textual organizationD. word formation17. In Austin’s speech act theory, ___________ is the act of expressing the speaker’s intention;it is the act performed in saying something.A. a perlocutionary actB. a locutionary actC. a constative actD. an illocutionary act东北林业大学2012-2013学年第一学期2010级英语专业期末考试试题B18. The positional relations can also be called ________.A. paradigmatic relationB. vertical relationsC. associative relationsD. syntagmatic relations19. A sentence which is used to describe something and can be said to be true or false is a________.A. constativeB. directiveC. utteranceD. expressive20. “hot dog” with the first element stressed means________.A. a dog which is hotB. a barking dogC. a kind of foodD. a dead dogPart III Definitions (20 points) Directions: Define the following terms.1. duality2. consonant3. grammatical subject & logical subject4. gradable antonymyPart ⅣAnswering Questions (30 points) Directions: Answer the following questions as comprehensively as possible. Give examples for your illustration if necessary.1. Language is generally defined as a system of arbitrary vocal symbols used for human communication. Explain it in detail.2.Differentiate phone, phoneme and allophone by citing examples.3. Do you think there are true synonyms in English? Why?标准答案及评分标准考试科目:英语语言学概论考试时间:120分钟试卷总分:100分Part I True or False (10 points) 标准答案:1. F 2. T 3. T 4. T 5. T 6. T 7. F 8. T 9. F 10. T评分标准:本题共10小题,每答对一题得1分,共计10分。

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离散数学(B) 2010级计算机学院各专业
一、填空(本大题共15个空,每空2分,总计30分)
1.设A={a,b,c },则A上共有__ ___个不同的二元关系关系,A的幂集P(A)有__ __个元素。

2. A={0, 1}, B={a, b, c},则A⨯B= {<0,a>} 。

3. 设F(x): x是计算机学院的学生,G(x): x离散数学考试及格,命题“有的计算机学院的学生离散数学考试不及格”在谓词逻辑中符号化的形式为_ 。

4. 谓词公式∀x(P(x)∨∃yR(y))→Q(y)中量词∀x的辖域是。

5.设P,Q的真值为0,R,S的真值为1,则

P⌝
Q





⌝的真值= 。

R
)))
(
)
(
(
R
(S
P
6. 一棵树有2个2度顶点,1 个3度顶点,3个4度顶点,则其1度顶点为。

7. 设A={2,4,6,8,10},A上的二元运算* 定义为:a * b = min{a, b},则在独异点
<A, *>中,单位元是,零元是。

8. 下面给出的集合中,不是前缀码。

(1) {a,ab,110,a1b11} (2) {01,001,000,1}
(3) {1,2,00,01,0210} (4) {12,11,101,002,0011}
9. 设A={Φ,{1},{1,3},{1,2,3}}则A上包含关系“⊆”的哈斯图为。

10. 设A={1,2,3,4,5,6},B={1,2,3},从A到B的关系R={<x,y>|x=2y},则
R= ;R-1 = ;
R的关系矩阵M R = ;R1-的关系矩阵M R-1 = 。

二、求解下列各题(本大题共8小题,每小题6分,总计48分)
1. 求A ⇔ (⌝p∧q)∨(⌝p⌝∧q∧r)∨r 的主析取范式。

2. 求公式∀xF(x) ∨⌝∃ xG(x) 的前束范式。

3. 已知一棵无向树中有2个2度顶点、1个3度顶点、3个4度顶点,其余顶点度数都为1。

问它有多少个1度顶点?
4. 设A={1,2,…,10}。

下列哪个是A的划分?若是划分,则它们诱导的等价关系是什么?
(1) B={{1,3,6},{2,8,10},{4,5,7}};
(2) C={{1,5,7},{2,4,8,9},{3,5,6,10}};
(3) D={{1,2,7},{3,5,10},{4,6,8},{9}}
5. 如下图所示的赋权图表示某六个城市v1,…,v6及预先算出它们之间的一些直接通信线路造价,试给出一个设计方案,使得各城市之间能够通信而且总造价最小。

6. S={a ,b,c },画出偏序集(),P S <⊆>的哈斯图,其中()P S 为S 的幂集。

7. 画出下图的补图。

8. 下列哪些语句是命题,若是命题,求出命题的真值。

(1) 大连民族学院是一所以工科为主综合性民族高等学校。

(2) 大连民族学院金石滩校区非常漂亮!
(3) 我正在说谎。

(4) 若5+9>17,则三角形有4条边。

(5) 你喜欢唱歌吗?
(6) 请遵守考场纪律!
三、证明下列各题(本大题共3小题,第1、2小题8分,第3小题6分,总计22分)
1. 构造下面命题推理的证明
如果我学习,那么我的离散数学不会不及格;如果我不热衷于玩游戏,那么我将学习;但我的离散数学不及格,因此我热衷于玩游戏。

2. I 上的二元运算 * 定义为:∀a ,b ∈I ,a * b = a +b +2。

试证:<I ,*>为群。

3. 设R 和R + 分别是实数集和正实数集,+ 和 × 分别是普通加法和乘法,定义函数 f : R →R + 为 f (r )=10r ,证明f 是从 < R , + > 到 < R +, ×> 的同构映射。

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