chapter1习题答案

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第章习题及参考答案 (1)

第1章习题及参考答案一．单选题1．（C ）技术是基于Java Servlet以及整个java体系的Web开发技术。

A．CGI B．ASP C．JSP D．PHP2．下面哪一个不是动态网页技术（D ）。

A． B．ASP C．JSP D．HTML3．在客户端网页脚本语言中最为通用的是( A )。

A．JavaScript B．VB C．Perl D．ASP4．下列描述错误的是( B )。

A．DHTML是HTML基础上发展的一门语言B．HTML主要分为两大类：服务器端动态页面和客户端动态页面C．客户端的DHTML技术包括HTML4．0、CSS、DOM和脚本语言D．DHTML侧重于WEB内容的动态表现5．可以不用发布就能在本地计算机上浏览的页面编写语言是（B ）。

A．ASP B．HTML C．PHP D．JSP6．一个HTML文档必须包含3个元素，它们是html、head和（B ）。

A．script B．body C．title D．link7．下面（C ）是换行符标签。

A．<body> B．<font> C．<br> D．<p>8．为了标识一个HTML文件，应该使用的HTML标记是( C )。

A．<p></p> B．<boby></body> C．<html></html> D．<table></table> 9．在静态网页中，必须使用（A ）标记来完成超级链接。

A．<a>…</a>B．<p>…</p>C．<link>…</link>D．<li>…</li> 10．用HTML标记语言编写一个简单的网页，网页最基本的结构是（D ）。

A．<html> <head>…</head> <frame>…</frame> </html>B．<html> <title>…</title> <body>…</body> </html>C．<html> <title>…</title> <frame>…</frame> </html>D．<html> <head>…</head> <body>…</body> </html>11．以下标记符中，用于设置页面标题的是（A ）。

语言学教程课后习题答案第一章资料(最新整理)

Chapter 1 Invitations to Linguistics1. Define the following terms:design feature: the distinctive features of human language that essentially make human language distinguishable from languages of animals.function: the role language plays in communication (e.g. to express ideas, attitudes) or in particular social situations (e.g. religious, legal).synchronic: said of an approach that studies language at a theoretical ‘point’ in time.diachronic: said of the study of development of language and languages over time. prescriptive: to make authoritarian statement about the correctness of a particular use of language.descriptive: to make an objective and systematic account of the patterns and use of a language or variety.arbitrariness: the absence of any physical correspondence between linguistic signals and the entities to which they refer.duality: the structural organization of language into two abstract levels: meaningful units (e.g. words) and meaningless segments (e.g. sounds, letters).displacement: the ability of language to refer to contexts removed from the speaker’s immediate situation.phatic communion: said of talk used to establish atmosphere or maintain social contact.metalanguage: a language used for talking about language.macrolinguistics: a broad conception of linguistic enquiry, including psychological, cultural, etc.competence: unconscious knowledge of the system of grammatical rules in a language.performance: the language actually used by people in speaking or writing.langue: the language system shared by a “speech community”.parole: the concrete utterances of a speaker.2. Consult at least four introductory linguistics textbooks (not dictionaries), and copy the definitions of “language” that each gives. After carefully comparing the definitions, write a paper discussing which points recur and explaining the significance of the similarities and differences among the definitions.ANSWER:All the definitions should not exclude the description of design features that have been mentioned in this course book. Also it will be better if other design features, say, interchangeability or cultural transmission is included. But it seems impossible to give an unimpeachable definition on language, because the facets people want to emphasize are seldom unanimous. To compare several definitions can make you realize where the argument is.3. Can you think of some words in English which are onomatopoeic?ANSWERS:creak: the sound made by a badly oiled door when it opens.cuckoo: the call of cuckoo.bang: a sudden loud noise.roar: a deep loud continuing sound.buzz: a noise of buzzing.hiss: a hissing sound.neigh: the long and loud cry that a horse makes.mew: the noise that a gull makes.bleat: the sound made by a sheep, goat or calf.4. Do you think that onomatopoeia indicates a non-arbitrary relationship between form and meaning?ANSWER:4. No matter you say "Yes" or "No", you cannot deny that onomatopoeia needs arbitrariness. Before we feel a word is onomatopoeic we should first know which sound the word imitates. Just as what is said in Chapter One, in order to imitate the noise of flying mosquitoes, there are many choices like "murmurous" and "murderous". They both bear more or less resemblance to the genuine natural sound, but "murmurous" is fortunately chosen to mean the noise while "murderous" is chosen to mean something quite different. They are arbitrary as signifiers.5. A story by Robert Louis Stevenson contains the sentence “As the night fell, the wind rose.” Could this be expressed as “As the wind rose, the night fell?” If not, why? Does this indicate a degree of non-arbitrariness about word order? (Bolinger, 1981: 15)5. Yes. It is a case in point to illustrate non-arbitrariness about word order. When the two parts interchange, the focus and the meaning of the sentence is forced to change, because clauses occurring in linear sequence without time indicators will be taken as matching the actual sequence of happening. The writer’s original intention is distorted, and we can feel it effortlessly by reading. That is why systemic-functionalists and American functionalists think language is not arbitrary at the syntactic level.6. Does the traffic light system have duality? Can you explain by drawing a simple graph?6. Traffic light does not have duality. Obviously, it is not a double-level system. There is only one-to-one relationship between signs and meaning but the meaning units cannot be divided into smaller meaningless elements further. So the traffic light only has the primary level and lacks the secondary level like animals’ calls.ANSWER:Red→stopGreen→goYellow→get ready to go or stop7. The recursive nature of language provides a theoretical basis for the creativity of language. Can you write a recursive sentence following the example in section 1.3.3.ANSWER:Today I encountered an old friend who was my classmate when I was in elementary school where there was an apple orchard in which we slid to select ripe apples that…8. Communication can take many forms, such as sign, speech, body language and facial expression. Do body language and facial expression share or lack the distinctive properties of human language?ANSWER:On a whole, body language and facial expression lack most of the distinctive properties of human language such as duality, displacement, creativity and so on. Body language exhibits arbitrariness a little bit. For instance, nod means "OK/YES" for us but in Arabian world it is equal to saying "NO". Some facial expressions have non-arbitrariness because they are instinctive such as the cry and laugh of a newborn infant.9. Do you agree with the view that no language is especially simple?ANSWER:Yes. All human languages are complicated systems of communication. It is decided by their shared design features.10. What do you think of Bertrand Russell’s observation of the dog language: “No matter how eloquently a dog may bark, he cannot tell you that his parents were poor but honest”? Are you familiar with any type of ways animals communicate among themselves and with human beings? ANSWER:When gazelles sense potential danger, for example, they flee and thereby signal to other gazellesin the vicinity that danger is lurking. A dog signals its wish to be let inside the house by barking and signals the possibility that it might bite momentarily by displaying its fangs.11.Can you mention some typical expressions of phatic communion in Chinese? There is the dialog between Ms. P and Ms. Q. in section 1.5.5. When someone sneezes violently, do you say anything of the nature of phatic communion? Have you noticed your parents or grandparents say something special on such an occasion?Some of the typical phatic expressions in Chinese are: 吃了吗？家里都好吧？这是去哪里啊？最近都挺好的？ANSWER:If someone is sneezing violently, maybe you parents and grandparents may say: “Are you ok?”, “Do you need to see a doctor?”, “Do you need some water?”, “Do you need a handkerchief?”, “Do you have a cold?” or something like these to show their concerns.12．There are many expressions in language which are metalingual or self-reflexives, namely, talking about talk and think about thinking, for instance, to be honest, to make a long story short, come to think of it, on second thought, can you collect a few more to make a list of these expressions? When do we use them most often?ANSWER:To tell the truth, frankly speaking, as a matter of fact, to be precise, in other words, that is to saySuch expressions are used most frequently when we want to expatiate the meaning of former clauses in anther way in argumentation.13. Comment on the following prescriptive rules. Do you think they are acceptable?(A) It is I.(B) It is me.You should say A instead of B because “be” should be followed by the nominative case, not the accusative according to the rules in Latin.(A) Who did you speak to?(B) Whom did you speak to?You should say B instead of A.(A) I haven't done anything.(B) I haven't done nothing.B is wrong because two negatives make a positive.ANSWER:(1) the Latin rule is not universal. In English, me is informal and I is felt to be very formal.(2) Whom is used in formal speech and in writing; who is more acceptable in informal speech.(3) Language does not have to follow logic reasoning. Here two negative only make a more emphatic negative. This sentence is not acceptable in Standard English not because it is illogical, but because language changes and rejects this usage now.14. The prescriptivism in grammar rules has now shifted to prescriptions in choice of words. In the “guidelines on anti-sexist language” issued by the British sociological association, someguidelines are listed below. Do you think they are descriptive and prescriptive? What’s your comment on them?(1) Do not use man to mean humanity in general. Use person, people, human beings, men and women, humanity and humankind.(2) colored: This term is regarded as outdated in the UK and should be avoided as it is generally viewed as offensive to many black people.(3) civilized: This term can still carry racist overtones which derive from a colonialist perception of the world. It is often associated with social Darwinist thought and is full of implicit value judgments and ignorance of the history of the non-industrialized world.ANSWER:They are undoubtedly descriptive. Guidelines are not rules that can determine whether a sentence is right or not. The guidelines advise you to avoid the use of particular words that are grammatically correct but offensive to some certain groups. Actually, they describe the way anti-sexist advocators speak and write.15. Why is the distinction between competence and performance an important one in linguistics? Do you think the line can be neatly drawn between them? How do you like the concept “communicative competence”?ANSWER:This is proposed by Chomsky in his formalist linguistic theories. It is sometimes hard to draw a strict line. Some researchers in applied linguistics think communicative competence may be a more revealing concept in language teaching than the purely theoretical pair—competence and performance.16. Which branch of linguistics do you think will develop rapidly in China and why?It is up to you to decide after you have gone through the whole book. At this stage, we suggest all branches of linguistics have the potential to flourish.17. The following are some well-known ambiguous sentences in syntactic studies of language. Can you disambiguate them?The chicken is too hot to eat.Flying planes can be dangerous.ANSWER:The chicken is too hot to eat.The chicken meat is too hot, so it cannot be eaten at the moment.The chicken feels so hot (maybe after some intense aerobic exercises) that it cannot start eating and needs to calm down first.Flying planes can be dangerous.The ambiguity comes from "flying planes". It can be deciphered as "the planes that is flying" or "to fly planes".18. There are many reasons for the discrepancy between competence and performance in normal language users. Can you think of some of them?ANSWEREthnic background, socioeconomic status, region of the country, and physical state (such as intoxication, fatigue, distraction, illness) vary from individual to individual.19. What do these two quotes reveal about the different emphasis or perspectives of language studies?(1) A human language is a system of remarkable complexity. To come to know a human language would be an extraordinary intellectual achievement for a creature not specifically designed to accomplish this task. A normal child acquires this knowledge on relatively slight exposure and without specific training. He can then quite effortlessly make use of an intricate structure of specific rules and guiding principles to convey his thoughts and feelings to others, ... Thus language is a mirror of mind in a deep and significant sense. It is a product of human intelligence, created anew in each individual by operations that lie far beyond the reach of will or consciousness.(Noam Chomsky: Reflections on Language. 1975: 4)(2) It is fairly obvious that language is used to serve a variety of different needs, but until we examine its grammar there is no clear reason for classifying its uses in any particular way. However, when we examine the meaning potential of language itself, we find that the vast numbers of options embodied in it combine into a very few relatively independent “networks”; and these networks of options correspond to certain basic functions of language. This enables us to give an account of the different functions of language that is relevant to the general understanding of linguistic structure rather than to any particular psychological or sociological investigation. (M. A. K. Halliday, 1970: 142)ANSWER:The first quote shows children’s inborn ability of acquiring the knowledge of intricate structure of specific rules. It implies that the language user's underlying knowledge about the system of rules is the valuable object of study for linguists. The second attaches great importance to the functions of language. It regards the use of language as the choice of needed function. The meaning of language can be completely included by a few “networks” which is directly related to basic functions of language. It indicates the necessity to study the functions of language.20. You may be familiar with the following proverbs. How do you perceive them according to the arbitrariness and conventionality of language?The proof of the pudding is in the eating.Let sleeping dogs lie.You can’t make a silk purse out of a sow’s ear.Rome was not built in a day.When in Rome, do as the Romans do.All roads lead to Rome.ANSWER:20. Arbitrariness and conventionality derive from the choice of the subject matter. For example, in the “The proof of the pudding is in the eating.” The word “pudding” is selected arbitrarily, for we can use another word such as cheese instead of pudding without changing the associative meaning of the proverb. On the other hand, once such links between particular words and associativemeaning are fixed, it becomes a matter of conventionality.21. Give examples of situations in which a usage generally considered non-standard (e.g. ain’t) would be acceptable, even appropriate.ANSWER21. In the talks between intimate friends, one may say “gimme that!” instead of “give me that!” and “wachya doin’?” instead of “what are you doing?” and this list may go on.22. The following are some book titles of linguistics. Can you judge the diachronic and diachronic orientation just from the titles?English Examined: Two centuries of Comment on the Mother-Tongue.Protean Shape: A Study in Eighteenth-century Vocabulary and Usage.Pejorative Sense Development in English.The Categories and Types of Present-Day English Word-Formation.Language in the Inner City: Studies in the Black English Vernacular.ANSWER22. Synchronic:Protean Shape: A Study in Eighteenth-century Vocabulary and Usage.The Categories and Types of Present-Day English Word-Formation.Language in the Inner City: Studies in the Black English Vernacular.Diachronic:English Examined: Two centuries of Comment on the Mother-Tongue.Pejorative Sense Development in English。

米什金货币金融学英文版习题答案chapter1英文习题

米什金货币金融学英文版习题答案chapter1英文习题Economics of Money, Banking, and Financial Markets, 11e, Global Edition (Mishkin) Chapter 1 Why Study Money, Banking, and Financial Markets?1.1 Why Study Financial Markets?1) Financial markets promote economic efficiency byA) channeling funds from investors to savers.B) creating inflation.C) channeling funds from savers to investors.D) reducing investment.Answer: CAACSB: Reflective Thinking2) Financial markets promote greater economic efficiency by channeling funds from ________ to ________.A) investors; saversB) borrowers; saversC) savers; borrowersD) savers; lendersAnswer: CAACSB: Reflective Thinking3) Well-functioning financial markets promoteA) inflation.B) deflation.C) unemployment.D) growth.Answer: DAACSB: Reflective Thinking4) A key factor in producing high economic growth isA) eliminating foreign trade.B) well-functioning financial markets.C) high interest rates.D) stock market volatility.Answer: BAACSB: Reflective Thinking5) Markets in which funds are transferred from those who have excess funds available to those who have a shortage of available funds are calledA) commodity markets.B) fund-available markets.C) derivative exchange markets.D) financial markets.Answer: DAACSB: Application of Knowledge6) ________ markets transfer funds from people who have an excess of available funds to people who have a shortage.A) CommodityB) Fund-availableC) FinancialD) Derivative exchangeAnswer: CAACSB: Application of Knowledge7) Poorly performing financial markets can be the cause ofA) wealth.B) poverty.C) financial stability.D) financial expansion.Answer: BAACSB: Reflective Thinking8) The bond markets are important because they areA) easily the most widely followed financial markets in the United States.B) the markets where foreign exchange rates are determined.C) the markets where interest rates are determined.D) the markets where all borrowers get their funds.Answer: CAACSB: Reflective Thinking9) The price paid for the rental of borrowed funds (usually expressed as a percentage of the rental of $100 per year) is commonly referred to as theA) inflation rate.B) exchange rate.C) interest rate.D) aggregate price level.Answer: CAACSB: Application of Knowledge10) Compared to interest rates on long-term U.S. government bonds, interest rates on three-month Treasury bills fluctuate ________ and are ________ on average.A) more; lowerB) less; lowerC) more; higherD) less; higherAnswer: AAACSB: Reflective Thinking11) The interest rate on Baa corporate bonds is ________, on average, than interest rates on Treasuries, and the spread between these rates became ________ in the 1970s.A) lower; smallerB) lower; largerC) higher; smallerD) higher; largerAnswer: DAACSB: Reflective Thinking12) Everything else held constant, a decline in interest rates will cause spending on housing toA) fall.B) remain unchanged.C) either rise, fall, or remain the same.D) rise.Answer: DAACSB: Analytical Thinking13) High interest rates might ________ purchasing a house or car but at the same time high interest rates might ________ saving.A) discourage; encourageB) discourage; discourageC) encourage; encourageD) encourage; discourageAnswer: AAACSB: Analytical Thinking14) An increase in interest rates might ________ saving because more can be earned in interest income.A) encourageB) discourageC) disallowD) invalidateAnswer: AAACSB: Analytical Thinking15) Everything else held constant, an increase in interest rates on student loansA) increases the cost of a college education.B) reduces the cost of a college education.C) has no effect on educational costs.D) increases costs for students with no loans.Answer: AAACSB: Analytical Thinking16) High interest rates might cause a corporation to ________ building a new plant that would provide more jobs.A) completeB) considerC) postponeD) contemplateAnswer: CAACSB: Analytical Thinking17) The stock market isA) where interest rates are determined.B) the most widely followed financial market in the United States.C) where foreign exchange rates are determined.D) the market where most borrowers get their funds.Answer: BAACSB: Reflective Thinking18) Stock prices areA) relatively stable trending upward at a steady pace.B) relatively stable trending downward at a moderate rate.C) extremely volatile.D) unstable trending downward at a moderate rate.Answer: CAACSB: Reflective Thinking19) A rising stock market index due to higher share pricesA) increases people's wealth, but is unlikely to increase their willingness to spend.B) increases people's wealth and as a result may increase their willingness to spend.C) decreases the amount of funds that business firms can raise by selling newly-issued stock.D) decreases people's wealth, but is unlikely to increase their willingness to spend. Answer: BAACSB: Analytical Thinking20) When stock prices fallA) an individual's wealth is not affected nor is their willingness to spend.B) a business firm will be more likely to sell stock to finance investment spending.C) an individual's wealth may decrease but their willingness to spend is not affected.D) an individual's wealth may decrease and their willingness to spend may decrease. Answer: DAACSB: Analytical Thinking21) Changes in stock pricesA) do not affect people's wealth and their willingness to spend.B) affect firms' decisions to sell stock to finance investment spending.C) occur in regular patterns.D) are unimportant to decision makers.Answer: BAACSB: Reflective Thinking22) An increase in stock prices ________ the size of people's wealth and may ________ their willingness to spend, everythingelse held constant.A) increases; increaseB) increases; decreaseC) decreases; increaseD) decreases; decreaseAnswer: AAACSB: Analytical Thinking23) Low stock market prices might ________ consumers’ willingness to spend and might________ businesses willingness to undertake investment projects.A) increase; increaseB) increase; decreaseC) decrease; decreaseD) decrease; increaseAnswer: CAACSB: Analytical Thinking24) Fear of a major recession causes stock prices to fall, everything else held constant, which in turn causes consumer spending toA) increase.B) remain unchanged.C) decrease.D) cannot be determined.Answer: CAACSB: Reflective Thinking25) A share of common stock is a claim on a corporation'sA) debt.B) liabilities.C) expenses.D) earnings and assets.Answer: DAACSB: Application of Knowledge26) On ________, October 19, 1987, the stock market experienced its worst one-day drop in its entire history with the DJIA falling by 22%.A) "Terrible Tuesday"B) "Woeful Wednesday"C) "Freaky Friday"D) "Black Monday"Answer: DAACSB: Application of Knowledge27) The decline in stock prices from 2000 through 2002A) increased individuals' willingness to spend.B) had no effect on individual spending.C) reduced individuals' willingness to spend.D) increased individual wealth.Answer: CAACSB: Analytical Thinking28) The Dow reached a peak of over 11,000 before the collapse of the ________ bubble in 2000.A) housingB) manufacturingC) high-techD) bankingAnswer: CAACSB: Application of Knowledge29) When I purchase a corporate ________, I am lending the corporation funds for a specific time. When I purchase a corporation's ________, I become an owner in the corporation.A) bond; stockB) stock; bondC) stock; debt securityD) bond; debt securityAnswer: AAACSB: Application of Knowledge30) What is a stock? How do stocks affect the economy?Answer: A stock represents a share of ownership of a corporation, or a claim on a firm's earnings/assets. Stocks are part of wealth, and changes in their value affect people's willingness to spend. Changes in stock prices affect a firm's ability to raise funds, and thus their investment. AACSB: Application of Knowledge31) Why is it important to understand the bond market?Answer: The bond market supports economic activity by enabling the government and corporations to borrow to undertake their projects and it is the market where interest rates are determined.AACSB: Application of Knowledge1.2 Why Study Financial Institutions and Banking?1) Channeling funds from individuals with surplus funds to those desiring funds when the saver does not purchase the borrower's security is known asA) barter.B) redistribution.C) financial intermediation.D) taxation.Answer: CAACSB: Application of Knowledge2) A financial crisis isA) not possible in the modern financial environment.B) a major disruption in the financial markets.C) a feature of developing economies only.D) typically followed by an economic boom.Answer: BAACSB: Application of Knowledge3) Banks are important to the study of money and the economy because theyA) channel funds from investors to savers.B) have been a source of rapid financial innovation.C) are the only important financial institution in the U.S. economy.D) create inflation.Answer: BAACSB: Reflective Thinking4) BanksA) provide a channel for linking those who want to save with those who want to invest.B) produce nothing of value and are therefore a drain on society's resources.C) are the only financial institutions allowed to give loans.D) hold very little of the average American's wealth.Answer: AAACSB: Reflective Thinking5) Banks, savings and loan associations, mutual savings banks, and credit unionsA) are no longer important players in financial intermediation.B) since deregulation now provide services only to small depositors.C) have been adept at innovating in response to changes in the regulatory environment.D) produce nothing of value and are therefore a drain on society's resources.Answer: CAACSB: Reflective Thinking6) Financial institutions search for ________ has resulted in many financial innovations.A) higher profitsB) regulationsC) respectD) higher riskAnswer: AAACSB: Application of Knowledge7) Banks and other financial institutions engage in financial intermediation, whichA) can hurt the performance of the economy.B) can benefit economic performance.C) has no effect on economic performance.D) involves borrowing from investors and lending to savers.Answer: BAACSB: Reflective Thinking8) Financial institutions that accept deposits and make loans are calledA) exchanges.B) banks.C) over-the-counter markets.D) finance companies.Answer: BAACSB: Application of Knowledge9) The financial intermediaries that the average person interacts with most frequently areA) exchanges.B) over-the-counter markets.C) finance companies.D) banks.Answer: DAACSB: Application of Knowledge10) Which of the following is NOT a financial institution?A) A life insurance companyB) A pension fundC) A credit unionD) A business collegeAnswer: DAACSB: Application of Knowledge11) The delivery of financial services electronically is calledA) e-business.B) e-commerce.C) e-finance.D) e-possible.Answer: CAACSB: Information Technology12) What crucial role do financial intermediaries perform in an economy?Answer: Financial intermediaries borrow funds from people who have saved and make loans to other individuals and businesses and thus improve the efficiency of the economy.AACSB: Reflective Thinking1.3 Why Study Money and Monetary Policy?1) Money is defined asA) bills of exchange.B) anything that is generally accepted in payment for goods and services or in the repayment of debt.C) a risk-free repository of spending power.D) the unrecognized liability of governments.Answer: BAACSB: Application of Knowledge2) The upward and downward movement of aggregate output produced in the economy is referred to as theA) roller coaster.B) see saw.C) business cycle.D) shock wave.Answer: CAACSB: Application of Knowledge3) Sustained downward movements in the business cycle are referred to asA) inflation.B) recessions.C) economic recoveries.D) expansions.Answer: BAACSB: Application of Knowledge4) During a recession, output declines result inA) lower unemployment in the economy.B) higher unemployment in the economy.C) no impact on the unemployment in the economy.D) higher wages for the workers.Answer: BAACSB: Analytical Thinking5) Prior to almost all recessions since 1950, there has been a drop inA) inflation.B) the money stock.C) the growth rate of the money stock.D) interest rates.Answer: CAACSB: Application of Knowledge6) Evidence from business cycle fluctuations in the United States indicates thatA) a negative relationship between money growth and general economic activity exists.B) recessions are usually preceded by declines in bond prices.C) recessions are usually preceded by dollar depreciation.D) recessions are usually preceded by a decline in the growth rate of money.Answer: DAACSB: Reflective Thinking7) ________ theory relates the quantity of money and monetary policy to changes in aggregate economic activity and inflation.A) MonetaryB) FiscalC) FinancialD) SystemicAnswer: AAACSB: Application of Knowledge8) A continuing increase in the growth of the money supply is likely followed byA) a recession.B) a depression.C) an increase in the price level.D) no change in the economy.Answer: CAACSB: Reflective Thinking9) It is true that inflation is aA) continuous increase in the money supply.B) continuous fall in prices.C) decline in interest rates.D) continually rising price level.Answer: DAACSB: Application of Knowledge10) Which of the following is a TRUE statement?A) Money or the money supply is defined as Federal Reserve notes.B) The average price of goods and services in an economy is called the aggregate price level.C) The inflation rate is measured as the rate of change in the federal government budget deficit.D) The aggregate price level is measured as the rate of change in the inflation rate.Answer: BAACSB: Application of Knowledge11) If the prices would have been much higher ten years ago for the items the average consumer purchased last month, then one can likely conclude thatA) the aggregate price level has declined during this ten-year period.B) the average inflation rate for this ten-year period has been positive.C) the average rate of money growth for this ten-year period has been positive.D) the aggregate price level has risen during this ten-year period.Answer: AAACSB: Analytical Thinking12) From 1950-2014 the price level in the United States increased more thanA) twofold.B) threefold.C) sixfold.D) tenfold.Answer: DAACSB: Reflective Thinking13) Complete Milton Friedman's famous statement, "Inflation is always and everywhere a________ phenomenon."A) recessionaryB) discretionaryC) repressionaryD) monetaryAnswer: DAACSB: Application of Knowledge14) There is a ________ association between inflation and the growth rate of money ________.A) positive; demandB) positive; supplyC) negative; demandD) negative; supplyAnswer: BAACSB: Application of Knowledge15) Evidence from the United States and other foreign countries indicates thatA) there is a strong positive association between inflation and growth rate of money over long periods of time.B) there is little support for the assertion that "inflation is always and everywhere a monetary phenomenon."C) countries with low monetary growth rates tend to experience higher rates of inflation, all else being constant.D) money growth is clearly unrelated to inflation.Answer: AAACSB: Reflective Thinking16) Countries that experience very high rates of inflation may also haveA) balanced budgets.B) rapidly growing money supplies.C) falling money supplies.D) constant money supplies.Answer: BAACSB: Reflective Thinking17) Between 1950 and 1980 in the U.S., interest rates trended upward. During this same time periodA) the rate of money growth declined.B) the rate of money growth increased.C) the government budget deficit (expressed as a percentage of GNP) trended downward.D) the aggregate price level declined quite dramatically.Answer: BAACSB: Reflective Thinking18) The management of money and interest rates is called________ policy and is conducted bya nation's ________ bank.A) monetary; superiorB) fiscal; superiorC) fiscal; centralD) monetary; centralAnswer: DAACSB: Application of Knowledge19) The organization responsible for the conduct of monetary policy in the United States is theA) Comptroller of the Currency.B) U.S. Treasury.C) Federal Reserve System.D) Bureau of Monetary Affairs.Answer: CAACSB: Application of Knowledge20) ________ policy involves decisions about government spending and taxation.A) MonetaryB) FiscalC) FinancialD) SystemicAnswer: BAACSB: Application of Knowledge21) When tax revenues are greater than government expenditures, the government has a budgetA) crisis.B) deficit.C) surplus.D) revision.AACSB: Application of Knowledge22) A budget ________ occurs when government expenditures exceed tax revenues for a particular time period.A) deficitB) surplusC) surgeD) surfeitAnswer: AAACSB: Application of Knowledge23) Budgets deficits can be a concern because they mightA) ultimately lead to higher inflation.B) lead to lower interest rates.C) lead to a slower rate of money growth.D) lead to higher bond prices.Answer: AAACSB: Reflective Thinking24) Budget deficits are important because deficitsA) cause bank failures.B) always cause interest rates to fall.C) can result in higher rates of monetary growth.D) always cause prices to fall.Answer: CAACSB: Reflective Thinking25) When a budget deficit occurs in the United States, the U.S. Treasury finances this deficit byA) borrowing.B) imposing a moratorium of new government spending.C) increasing the tax rate.D) printing more dollars.AACSB: Application of Knowledge26) What happens to economic growth and unemployment during a business cycle recession? What is the relationship between the money growth rate and a business cycle recession? Answer: During a recession, output declines and unemployment increases. Prior to almost every recession in the U.S. the money growth rate has declined; however, not every decline is followed by a recession.AACSB: Reflective Thinking1.4 Why Study International Finance?1) American companies can borrow fundsA) only in U.S. financial markets.B) only in foreign financial markets.C) in both U.S. and foreign financial markets.D) only from the U.S. government.Answer: CAACSB: Diverse and multicultural work environments2) The price of one country's currency in terms of another country's currency is called theA) exchange rate.B) interest rate.C) Dow Jones industrial average.D) prime rate.Answer: AAACSB: Application of Knowledge3) The market where one currency is converted into another currency is called the ________ market.A) stockB) bondC) derivativesD) foreign exchangeAnswer: DAACSB: Application of Knowledge4) Everything else constant, a stronger dollar will mean thatA) vacationing in England becomes more expensive.B) vacationing in England becomes less expensive.C) French cheese becomes more expensive.D) Japanese cars become more expensive.Answer: BAACSB: Analytical Thinking5) Which of the following is most likely to result from a stronger dollar?A) U.S. goods exported aboard will cost less in foreign countries, and so foreigners will buy more of them.B) U.S. goods exported aboard will cost more in foreign countries and so foreigners will buy more of them.C) U.S. goods exported abroad will cost more in foreign countries, and so foreigners will buy fewer of them.D) Americans will purchase fewer foreign goods.Answer: CAACSB: Diverse and multicultural work environments6) Everything else held constant, a weaker dollar will likely hurtA) textile exporters in South Carolina.B) wheat farmers in Montana that sell domestically.C) automobile manufacturers in Michigan that use domestically produced inputs.D) furniture importers in California.Answer: DAACSB: Diverse and multicultural work environments7) Everything else held constant, a stronger dollar benefits ________ and hurts ________.A) American businesses; American consumersB) American businesses; foreign businessesC) American consumers; American businessesD) foreign businesses; American consumersAnswer: CAACSB: Diverse and multicultural work environments8) From 1980 to early 1985 the dollar ________ in value, thereby benefiting American________.A) appreciated; consumersB) appreciated, businessesC) depreciated; consumersD) depreciated, businessesAnswer: AAACSB: Diverse and multicultural work environments9) From 1980 to 1985 the dollar appreciated relative to the British pound. Holding everything else constant, one would expect that, when compared to 1980A) fewer Britons traveled to the United States in 1985.B) Britons imported more wine from California in 1985.C) Americans exported more wheat to England in 1985.D) more Britons traveled to the United States in 1985.Answer: AAACSB: Diverse and multicultural work environments10) When in 1985 a British pound cost approximately $1.30,a Shetland sweater that cost 100 British pounds would have cost $130. With a weaker dollar, the same Shetland sweater wouldhave costA) less than $130.B) more than $130.C) $130, since the exchange rate does not affect the prices that American consumers pay for foreign goods.D) $130, since the demand for Shetland sweaters will decrease to prevent an increase in price due to the stronger dollar.Answer: BAACSB: Diverse and multicultural work environments11) Everything else held constant, a decrease in the value of the dollar relative to all foreign currencies means that the price of foreign goods purchased by AmericansA) increases.B) decreases.C) remains unchanged.D) either increases, decreases, or remains unchanged.Answer: AAACSB: Diverse and multicultural work environments12) American farmers who sell beef to Europe benefit most fromA) a decrease in the dollar price of euros.B) an increase in the dollar price of euros.C) a constant dollar price for euros.D) a European ban on imports of American beef.Answer: BAACSB: Diverse and multicultural work environments13) If the price of a euro (the European currency) increases from $1.00 to $1.10, then, everything else held constantA) a European vacation becomes less expensive.B) a European vacation becomes more expensive.C) the cost of a European vacation is not affected.D) foreign travel becomes impossible.Answer: BAACSB: Application of Knowledge14) Everything else held constant, Americans who love French wine benefit most fromA) a decrease in the dollar price of euros.B) an increase in the dollar price of euros.C) a constant dollar price for euros.D) a ban on imports from Europe.Answer: AAACSB: Application of Knowledge15) From 2000 to 2014, the dollar depreciated substantially against other currencies. This drop in value most likely benefittedA) European citizens traveling in the U.S.B) U.S. citizens traveling in Europe.C) U.S. manufacturers importing parts from abroad.D) U.S. citizens purchasing foreign-made automobiles.Answer: AAACSB: Application of Knowledge16) From 1980-1985, the dollar strengthened in value against other currencies. Who was helped and who was hurt by this strong dollar?Answer: American consumers benefitted because imports were cheaper and consumers could purchase more. American businesses and workers in those businesses were hurt as domestic and foreign sales of American products fell.AACSB: Reflective Thinking1.5 How We Will Study Money, Banking, and Financial Markets1) The basic concepts used in the analytic framework of this text include all of the following EXCEPTA) the not-for-profit nature of most financial institutions.B) a basic supply and demand analysis to explain the behavior of financial markets.C) an approach to financial structure based on transaction costs and asymmetric information.D) the concept of equilibrium.Answer: AAACSB: Application of Knowledge2) Using a unified analytic framework to present the information in the text keeps the knowledgeA) focused on theories that have little to do with actual behavior.B) theoretical and uninteresting.C) abstract and not applicable to real life.D) from becoming obsolete.Answer: DAACSB: Application of Knowledge1.6 Appendix: Defining Aggregate Output, Income, the Price Level, and the Inflation Rate1) The most comprehensive measure of aggregate output isA) gross domestic product.B) net national product.C) the stock value of the industrial 500.D) national income.Answer: AAACSB: Application of Knowledge2) The gross domestic product is theA) the value of all wealth in an economy.B) the value of all goods and services sold to other nations in a year.C) the market value of all final goods and services produced in an economy in a year.D) the market value of all intermediate goods and services produced in an economy in a year. Answer: CAACSB: Application of Knowledge3) Which of the following items are NOT counted in U.S. GDP?A) your purchase of a new Ford MustangB) your purchase of new tires for your old carC) GM's purchase of tires for new carsD) a foreign consumer's purchase of a new Ford MustangAnswer: CAACSB: Reflective Thinking4) If an economy has aggregate output of $20 trillion, then aggregate income isA) $10 trillion.B) $20 trillion.C) $30 trillion.D) $40 trillion.Answer: BAACSB: Analytical Thinking5) When the total value of final goods and services is calculated using current prices, the resulting measure is referred to asA) real GDP.B) the GDP deflator.C) nominal GDP.D) the index of leading indicators.Answer: CAACSB: Application of Knowledge6) Nominal GDP is output measured in ________ prices while real GDP is output measured in ________ prices.A) current; currentB) current; fixedC) fixed; fixedD) fixed; currentAnswer: BAACSB: Application of Knowledge7) GDP measured with constant prices is referred to asA) real GDP.B) nominal GDP.C) the GDP deflator.D) industrial production.Answer: AAACSB: Application of Knowledge8) If your nominal income in 2014 was $50,000, and prices doubled between 2014 and 2017, to have the same real income, your nominal income in 2017 must beA) $50,000.B) $75,000.C) $90,000.D) $100,000.Answer: DAACSB: Analytical Thinking9) If your nominal income in 2014 is $50,000, and prices increase by 50% between 2014 and 2017, then to have the same real income, your nominal income in 2017 must beA) $50,000.B) $75,000.。

芬斯特拉《国际贸易》课后习题答案第1章

to End-of-Chapter Questions1.Figures 1-2 and 1-7 rely on data from the year 2006, and Figure 1-6 relies on datafrom 2005, to map worldwide trade, migration, and foreign direct investment. Up-dated data for migration and foreign direct investment were not available at the time of writing this chapter, but are available for worldwide trade. In this question you are asked to update the numbers for world trade shown in Table 1-1.a.Go to the W orld Trade Organization website at and look for theirtrade data under “Resources” and “Statistics.”1Look for the most recent edition oftheir International T rade Statistics publication, then go to “Trade by Region” and ﬁndthe Excel spreadsheet with “Intra- and Inter-regional Merchandise Trade.” Print outthis table. If you cannot ﬁnd the website or spreadsheet, use the 2005 table for “In-tra- and Inter-regional Merchandise Trade,” which is printed below:b.From this table, what is the total amount of trade within Europe? What percent-age is this of total world trade?Answer: $4,695 billion, which is 29.9% of the world total1The trade statistics are at /english/res_e/statis_e/its2009_e/its09_world_trade_dev_e.htm.S-4Solutions ■Chapter 1 Trade in the Global Economyc.What is the total amount of trade (in either direction) between Europe andNorth America? Add that to the total trade within Europe, and calculate the per-centage of this to the world total.Answer: $(369ϩ 475)ϭ $844 billion. Adding that to intra-European trade, weobtain 35.2% of the world total.d.What is the total amount of trade within the Americas (i.e., between NorthAmerica, Central America, South America, and within each of these regions)?What percentage is this of total world trade?Answer: $(1,015 + 165 + 169 + 159) = $1,508 billion, or 9.6% of the worldtotale.What is the total value of exports from Europe and the Americas and what per-centage is this of the world total?Answer: $(2,036 + 600 + 6,447) = $8,983 billion, or 57.8% of the world totalf.What is the total value of exports from Asia, and what percentage is this of theworld total?Answer: $4,353 billion, which is 27.7% of the world totalg.What is the total value of exports from the Middle East and the Commonwealthof Independent States2and what percentage is this of the world total?Answer: $(1,021ϩ 703)ϭ $1,724 billion, which is 11% of the world totalh.What is the total value of exports from Africa, and what percentage is this of theworld total?Answer: $298 billion, which is 3.5% of the world totali.How do your answers to (b) through (h) compare with the shares of worldwidetrade shown in Table 1-1?Answer: The shares computed in (b) through (h) are quite similar to Table 1.1.Both are within one percentage point of Table 1-1.2.The quotation from Federal Reserve Chairman Ben Bernanke at the beginning ofthe chapter is from a speech that he presented in Jackson Hole, Wyoming, on August25, 2006, entitled “Global Economic I ntegration: What’s New and What’s Not?”The full transcript of the speech is available at http://www//newsevents/speech/bernanke20060825a.htm. Read this speech and answer the fol-lowing questions:a.List three ways in which international trade today is not that different from thetrade that occurred before W orld W ar I.Answer:i)Physical distance is the same.ii)New transportation methods allow for more trade.iii)Governments foster open trade, as well as ﬁnancial ﬂows.iv)Some groups are opposed to free trade.v)The range of goods that are tradable has broadened.b.List three ways in which international trade today does differ from the trade thatoccurred before W orld W ar I.Answer:i)Intra-industry trade has increased.2The Commonwealth of Independent States consists of: Azerbaijan, Armenia, Belarus, Georgia, Kazakhstan, Kyrgyzstan,Moldova, Russia, Tajikistan, T urkmenistan, Uzbekistan, and Ukraine.Solutions ■Chapter 1 Trade in the Global Economy S-5ii)Information and communication technologies permit trade in services.iii)Scale and pace of growth in trade is faster.iv)Core-periphery pattern is no longer relevant.v)Fragmentation of production processes has occurred.vi)Capital markets are more mature, and gross ﬂows are larger.。

《逻辑与计算机设计基础》(原书第五版)课后习题答案-chapter01_solutions-5th

1CHAPTER 1© 2016 Pearson Education, Inc.1-1.(a)(1) Calm:(2) 10 mph(3) 100 mphor(b) The microcomputer requires a table or equation for converting from rotations/second to miles/hour. The pulses produced by the rotating disk must be counted over a known period of time, and the table or equation used to convert the binary count to miles per hour.1-2.–34° quantizes to –30° => 1 V => 0001+31° quantizes to +30° => 7 V => 0111 +77° quantizes to +80° => 12 V => 1100 +108° quantizes to +110° => 15 V => 11111-3.*Decimal, Binary, Octal and Hexadecimal Numbers from (16)to (31)1-4.1020301281282131,0723232233,554,4328828,589,934,592=⨯==⨯==⨯=K Bits M Bits G Bits21-5.220 = (1,000,00010 + d ) where d = 48,576 1Tb = 240 = (220)2 = (1,000,000 + d )2= (1,000,000)2 + 2(1,000,000) d + d 2 = 1,000,000,000,000 + 97,152,000,000 + 2,359,627,776 = 1,099,511,627,7761-6.112511212047252133,554,4311 Bits 1 Bits ⇒-=⇒-=1-7.*63202641013275321142(1001101)222277(1010011.101)22222283.625(10101110.1001)2222222174.5625----=+++==+++++==++++++=1-8.1 1 0 0 0 0 0 0 0 0 0 1 0 11-9.*1-10.*a)0.45 × 8 = 3.6 =>0.60 × 8 = 4.8 =>0.80 × 8 = 6.4 =>0.20 × 8 = 3.2 =>10= (16612.3463)8b) (1938.257)10 = (792.41CB)16c) (175.175)10 = (10101111.001011)21-11.*a) (673.6)8= (110 111 011.110)2= (1BB.C)16b) (E7C.B)16= (1110 0111 1100.1011)2= (7174.54)8c) (310.2)4= (11 01 00.10)2= (64.4)81-12.a) 1010 b) 0110 c) 1111001×1100 ×1001 ×0111010000 0110 11110010000 0000 0000001010 0000 11110011010 0110 11110011111000 0110110 11110010000000110110110101341-13.+1000110110101101010000000010000110001101011-----Quotient = 10001R emainder = 1 1-14.(a) 6 × 123 + 8 × 122 + 7 × 121 + 4 = 11608 (b)12 1-15.a)0 1 2 3 4 5 6 7 8 9 A BCDEFGHIJb) 20c) 21012010(.)1120122018201620(4658.8)BCI G -=⨯+⨯+⨯+⨯=1-16.*a) (BEE)r = (2699)1021021114142699111426850r r r r r ⨯+⨯+⨯=⨯+⨯-=By the quadratic equation: r = 15 or ≈ –16.27 ANSWER: r = 15 b) (365)r = (194)102102365194361890r r r r r ⨯+⨯+⨯=⨯+⨯-=By the quadratic equation: r = – 9 or 7 ANSWER: r = 751-17.Errata: The text has an error: 1480 should be 1460. This will be corrected in future printings.Noting the order of operations, first add (34)r and (24)r101010(34)34(24)24(34)(24)58r r r r r r r r r r =⨯+⨯=⨯+⨯+=⨯+⨯Now, multiply the result by (21)r101021(21)(58)10218⨯+⨯⨯⨯+⨯=⨯+⨯+r r r r r r Next, set the result equal to (1480)r and reorganize.21321321010218146161580⨯+⨯+=⨯+⨯+⨯⨯-⨯-⨯-⨯=r r r r r r r r r Finally, find the roots of this cubic polynomial. Solutions are: r = 8, – 1, – 1ANSWER: The chicken has 4 toes on each foot (half of 8).1-18.*a) (0100 1000 0110 0111)BCD = (4867)10= (1001100000011)2 b) (0011 0111 1000.0111 0101)BCD= (378.75)10=(101111010.11)21-19.*(694)10 = (0110 1001 0100)BCD (835)10=(1000 0011 0101)BCD1001 0100 +0011 +0101 1100 1001 +0110 +00001 001010011-20.*(a)101 1000111 1000Move R 011 1100 0 100 column > 0111Subtract 3 −0011011 1001 0Subtract 3 −001101 1001Move R 0 1100 110 100 column > 0111Subtract 3 −00110 1001 110Move R 0100 1110Move R 010 01110Move R 01 001110Move R 0 1001110 Leftmost 1 in BCD numbershifted out: Finished(b) 102101 1000011 1001 0111Move R 001 1100 1011 1 101 and 100 columns > 0111Subtract 3 −0011 -0011001 1001 1000 1Move R 00 1100 1100 01 101 and 100 columns > 0111Subtract 3 −0011 −001100 1001 1001 01Move R 0 0100 1100 101 100 column > 0111Subtract 3 −00110 0100 1001Move R 0010 0100 1101Move R 001 0010 01101Move R 00 1001 001101 100 column > 0111Subtract 3 −001100 0110 001101Move R 0 0011 0001101Move R 0001 10001101Move R 000 110001101 Leftmost 1 in BCDnumber shifted out: Finished 1-21.(a) 10210110011110001st Move L 1 1110002nd Move L 11 110003rd Move L 111 1000 100 column > 100Add 3 00111010 10004th Move L 1 0101 000 100 column > 100Add 3 00111 1000 0005th Move L 11 0000 006th Move L 110 00000 101 column > 100Add 3 00111001 0000 07th Move L 1 0001 00000 Least significant bit in binary number moved in:Finished(b) 103102101100011100101111st Move L 0 11100101112nd Move L 01 1100101113rd Move L 011 100101114th Move L 0111 0010111 100 column > 100Add 3 001161010 00101115th Move L 1 0100 0101116th Move L 10 1000 10111 100 column > 100Add 3 001110 1011 101117th Move L 101 0111 0111 101 & 100 columns > 100Add 3 0011 00111000 1010 01118th Move L 1 0001 0100 1119th Move L 10 0010 1001 11 100 column > 100Add 3 001110 0010 1100 1110th Move L 100 0101 1001 1 101 &100 columns > 100Add 3 0011 0011100 1000 1100 111th Move L 1001 0001 1001 Least significant bit in binary number moved in: Finished1-22.From Table 1-5, complementing the bit B6 will switch an uppercase letter to a lower case letter and vice versa.1-23.a) The name used is Brent M. Ledvina. An alternative answer: use both upper and lower case letters.0100 0010 B 0101 0010 R 0100 0101 E0100 1110 N 0101 0100 T 0010 0000 (SP)0100 1101 M 0010 1110 . 0010 0000 (SP)0100 1100 L 0100 0101 E 0100 0100 D0101 0110 V 0100 1001 I 0100 1110 N0100 0001 Ab) 0100 0010 1101 0010 1100 01010100 1110 1101 0100 1010 00000100 1101 0010 1110 1010 00001100 1100 1100 0101 0100 01000101 0110 1100 1001 0100 11100100 00011-24.1000111 G1101111 o01000001000011 C1100001 a1110010 r1100100 d1101001 i1101110 n1100001 a (Errata: This number appears as 110001, which would be “1”)1101100 l1110011 s0100001 !781-25.*a) (11111111)2b) (0010 0101 0101)BCD c) 011 0010 011 0101 011 0101ASCIId)0011 00101011 01011011 0101ASCII with Odd Parity1-26.a) U+0040 = 01000000b) U+00A2 = 11000010 10100010c) U+20AC = 11100010 10000010 10101100d)U+1F6B2 = 11110000 10011111 10011010 101100101-27.Binary Numbers from (32)to (47) with Odd and Even Parity1-28.Gray Code for Hexadecimal Digits1-29.(a) Wind Direction Gray CodeDirectionCode WordN 000 S 110 E 011 W 101 NW 100 NE 001 SW 111 SE0109(b) Wind Direction Gray Code (directions in adjacent order)DirectionCode WordN 000 NE 001 E 011 SE 010 S 110 SW 111 W 101 NW100As the wind direction changes, the codes change in the order of the rows of this table, as suming that the bottom row is “next to” the top row. From the table, the codes that result due to a wind direction change always change in a single bit.1-30.+The percentage of power consumed by the Gray code counter compared to a binary code counter equals:Number of bit changes using Gray code Number of bit changes using binary codeAs shown in Table 1-6, and by definition, the number of bit changes per cycle of an n-bit Gray code counter is 1 per count = 2n .Number of bit changes using Gray code = 2nFor a binary counter, notice that the least significant bit changes on every increment. The second least significant bit changes on every other increment. The third digit changes on every fourth increment of the counter, and so on. As shown in Table 1-6, the most significant digit changes twice per cycle of the binary counter.Number of bit changes using binary code 11222n n -+++(1)110221(21)122nni i n n i i ++==⎡⎤==-=--=-⎢⎥⎣⎦∑∑ % Power (1)210022n n +=⨯-。

Sakurai. Modern Quantumn Mechanics 习题答案(chapter 1 )

3
∞
< x 2 >=
−∞
2 ∫ dx' < α | x' > x' < x'| α >
y = x '−< x > ∞
=
−∞
∫ dy < α | y + < x >> ( y + < x >)
2
< y + < x >| α >
= d 2 + < x >2 < (∆x) 2 >= d 2 Also : h2 < (∆p) >= 4d 2
^
^
h ⎛ cos γ ⎜ 2⎜ ⎝ sin γ
sin γ ⎞ ⎟ − cos γ ⎟ ⎠

⎛ c1 ⎞
h ⎛ cos γ ⎜ 2⎜ ⎝ sirγ
（1）、求： S x = 解答： S x =
γ⎞ ⎛ ⎜ cos ⎟ sirγ ⎞⎛ c1 ⎞ h ⎛ c1 ⎞ 2⎟ ⎟⎜ ⎜c ⎟ ⎟ ⇒ψ = ⎜ ⎜c ⎟ ⎟ = 2⎜ γ − cpsγ ⎟ ⎜ ⎠⎝ 2 ⎠ ⎝ 2⎠ ⎜ sin ⎟ ⎟ 2⎠ ⎝
⎛ ⎜ ⎜ ⎜ 当 A‘=-a 时，对应 B’=b，要求α=0，γ=iβ，取归一化得 − a, b = ⎜ ⎜ ⎜i ⎜ ⎝ ⎞ ⎟ 0 ⎟ 1 ⎟ ⎟ 2 ⎟ 1 ⎟ ⎟ 2⎠
5
⎛ ⎞ ⎜ ⎟ ⎜ 0 ⎟ ⎜ 1 ⎟ 当 A‘=-a 时，对应 B‘=-b，要求α=0，γ=—iβ，取归一化得 − a,−b = ⎜ ⎟ ⎜ 2 ⎟ ⎜− i 1 ⎟ ⎜ ⎟ 2⎠ ⎝
4
⎛α ⎞ ⎜ ⎟ （3）、解答：因为 A，B 对易，所以有共同本征态，设其共同本征态为 ⎜ β ⎟ ，本征值为 A`， ⎜γ ⎟ ⎝ ⎠

四川大学出版社《概率论与数理统计》课后习题答案chapter1

习题解答1. 将一枚均匀的硬币抛两次，事件C B A ,,分别表示“第一次出现正面”，“两次出现同一面”，“至少有一次出现正面”。

试写出样本空间及事件C B A ,,中的样本点。

解：{=Ω(正，正)，（正，反），（反，正），（反，反）}{=A (正，正)，（正，反）}；{=B （正，正），（反，反）}{=C (正，正)，（正，反），（反，正）}2. 在掷两颗骰子的试验中，事件D C B A ,,,分别表示“点数之和为偶数”，“点数之和小于5”，“点数相等”，“至少有一颗骰子的点数为3”。

试写出样本空间及事件D C B A BC C A B A AB ---+,,,,中的样本点。

解：{})6,6(,),2,6(),1,6(,),6,2(,),2,2(),1,2(),6,1(,),2,1(),1,1(ΛΛΛΛ=Ω；{})1,3(),2,2(),3,1(),1,1(=AB ；{})1,2(),2,1(),6,6(),4,6(),2,6(,),5,1(),3,1(),1,1(Λ=+B A ；Φ=C A ；{})2,2(),1,1(=BC ；{})4,6(),2,6(),1,5(),6,4(),2,4(),6,2(),4,2(),5,1(=---D C B A3. 以C B A ,,分别表示某城市居民订阅日报、晚报和体育报。

试用C B A ,,表示以下事件：（1）只订阅日报；（2）只订日报和晚报；（3）只订一种报；（4）正好订两种报；（5）至少订阅一种报；（6）不订阅任何报；（7）至多订阅一种报；（8）三种报纸都订阅；（9）三种报纸不全订阅。

解：（1）C B A ；（2）C AB ；（3）C B A C B A C B A ++；（4）BC A C B A C AB ++;（5）C B A ++；（6）C B A ；（7）C B A C B A C B A C B A +++或C B C A B A ++ （8）ABC ；（9）C B A ++4. 甲、乙、丙三人各射击一次，事件321,,A A A 分别表示甲、乙、丙射中。

chapter1习题答案

chapter1习题答案一、名词解释1、芽孢：某些细菌在其生长发育后期, 在细胞内形成的一个圆形或椭圆形、壁厚抗逆性强的休眠构造。

2、糖被：包被于某些细菌细胞壁外的一层厚度不定的透明胶状物质, 成分是多糖或多肽。

3、菌落：将单个细菌细胞或一小堆同种细胞接种到固体培养基表面，当它占有一定的发展空间并处于适宜的培养条件时，该细胞就会迅速生长繁殖并形成细胞堆，此即菌落。

4、基内菌丝：当孢子落在固体基质表面并发芽后，就不断伸长、分枝并以放射状向基质表面和内层扩展，形成大量色浅、较细的具有吸收营养和排泄代谢废物功能的基内菌丝5、孢囊：指固氮菌尤其是棕色固氮菌等少数细菌在缺乏营养的条件下，由营养细胞的外壁加厚、细胞失水而形成的一种抗干旱但不抗热的圆形休眠体，一个营养细胞仅形成一个孢囊。

6、质粒：指细菌细胞质内存在于染色体外或附加于染色体上的遗传物质，绝大多数由共价闭合环状双螺旋DNA分子构成。

7、微生物：是指肉眼看不见或看不清楚的微小生物的总称。

包括细菌、放线菌、霉菌、酵母菌和病毒等大类群。

8、鞭毛：是从细菌质膜和细胞壁伸出细胞外面的蛋白质组成的丝状结构，使细胞具有运动性。

9、菌落：将单个或一小堆同种细胞接种到固体培养基表面，经培养后会形成以母细胞为中心的一堆肉眼可见的、有一定形态构造的子细胞集团称菌落。

10、放线菌：一类呈丝状生长、以孢子繁殖、陆生性较强的原核微生物。

11、荚膜：有些细菌在生命过程中在其表面分泌一层松散透明的粘液物质，这些粘液物质具有一定外形，相对稳定地附于细胞壁外面，称为荚膜。

二. 填空1、芽孢的结构一般可分为孢外壁、芽孢衣、皮层和核心四部分。

2、细菌的繁殖方式主要是裂殖，少数种类进行芽殖。

3、放线菌产生的孢子有有性孢子和无性孢子两种。

4、细菌的核糖体的沉降系数是70s 。

5、细菌的鞭毛有三个基本部分，分别为基体，钩形鞘，和鞭毛丝。

6、微生物修复受损DNA的作用有__光复活作用__和_切除修复。

语言学教程课后习题答案第一章

Chapter 1 Invitations to Linguistics1. Define the following terms:design feature: the distinctive features of human language that essentially make human language distinguishable from languages of animals.function: the role language plays in communication (e.g. to express ideas, attitudes) or in particular social situations (e.g. religious, legal).synchronic: said of an approach that studies language at a theoretical ‘point’ in time.diachronic: said of the study of development of language and languages over time. prescriptive: to make authoritarian statement about the correctness of a particular use of language.descriptive: to make an objective and systematic account of the patterns and use of a language or variety.arbitrariness: the absence of any physical correspondence between linguistic signals and the entities to which they refer.duality: the structural organization of language into two abstract levels: meaningful units (e.g. words) and meaningless segments (e.g. sounds, letters).displa cement: the ability of language to refer to contexts removed from the speaker’s immediate situation.phatic communion: said of talk used to establish atmosphere or maintain social contact.metalanguage: a language used for talking about language.macrolinguistics: a broad conception of linguistic enquiry, including psychological, cultural, etc.competence: unconscious knowledge of the system of grammatical rules in a language.performance: the language actually used by people in speaking or writing.l angue: the language system shared by a “speech community”.parole: the concrete utterances of a speaker.2. Consult at least four introductory linguistics textbooks (not dictionaries), and copy the definitions of “language” that each gives. After careful ly comparing the definitions, write a paper discussing which points recur and explaining the significance of the similarities and differencesamong the definitions.ANSWER:All the definitions should not exclude the description of design features that have been mentioned in this course book. Also it will be better if other design features, say, interchangeability or cultural transmission is included. But it seems impossible to give an unimpeachable definition on language, because the facets people want to emphasize are seldom unanimous. To compare several definitions can make you realize where the argument is.3. Can you think of some words in English which are onomatopoeic?ANSWERS:creak: the sound made by a badly oiled door when it opens.cuckoo: the call of cuckoo.bang: a sudden loud noise.roar: a deep loud continuing sound.buzz: a noise of buzzing.hiss: a hissing sound.neigh: the long and loud cry that a horse makes.mew: the noise that a gull makes.bleat: the sound made by a sheep, goat or calf.4. Do you think that onomatopoeia indicates a non-arbitrary relationship between form and meaning?ANSWER:4. No matter you say "Yes" or "No", you cannot deny that onomatopoeia needs arbitrariness. Before we feel a word is onomatopoeic we should first know which sound the word imitates. Just as what is said in Chapter One, in order to imitate the noise of flying mosquitoes, there are many choices like "murmurous" and "murderous". They both bear more or less resemblance to the genuine natural sound, but "murmurous" is fortunately chosen to mean the noise while "murderous" is chosen to mean something quite different. They are arbitrary as signifiers.5. A story by Robert Louis Stevenson contains the sentence “As the night fell, the wind rose.” Could this be expressed as “As the wind rose, the night fell?” If not, why? Does this indicate a degree of non-arbitrariness about word order? (Bolinger, 1981: 15)5. Yes. It is a case in point to illustrate non-arbitrariness about word order. When the two parts interchange, the focus and the meaning of the sentence is forced to change, because clauses occurring in linear sequence without time indicators will be taken as matching the actual sequence of happening. The writer’s original intention is distorted, and we c an feel it effortlessly by reading. That is why systemic-functionalists and American functionalists think language is not arbitrary at the syntactic level.6. Does the traffic light system have duality? Can you explain by drawing a simple graph?6. Traffic light does not have duality. Obviously, it is not a double-level system. There is only one-to-one relationship between signs and meaning but the meaning units cannot be divided into smaller meaningless elements further. So the traffic light only has the primary level and lacks the secondary level like animals’ calls.ANSWER:Red→stopGreen→goYellow→get ready to go or stop7. The recursive nature of language provides a theoretical basis for the creativity of language. Can you write a recursive sentence following the example in section 1.3.3.ANSWER:Today I encountered an old friend who was my classmate when I was in elementary school where there was an apple orchard in which we slid to select ripe apples that…8. Communication can take many forms, such as sign, speech, body language and facial expression. Do body language and facial expression share or lack the distinctive properties of human language?ANSWER:On a whole, body language and facial expression lack most of the distinctive properties of human language such as duality, displacement, creativity and so on. Body language exhibits arbitrariness a little bit. For instance, nod means "OK/YES" for us but in Arabian world it is equal to saying "NO". Some facial expressions have non-arbitrariness because they are instinctive such as the cry and laugh of a newborn infant.9. Do you agree with the view that no language is especially simple?ANSWER:Yes. All human languages are complicated systems of communication. It is decided by their shared design features.10. What do you think of Bertrand Russell’s observation of the dog language: “No matter how eloquently a dog may bark, he cannot tell you that his parents were poor but honest”? Are you familiar with any type of ways animals communicate among themselves and with human beings? ANSWER:When gazelles sense potential danger, for example, they flee and thereby signal to other gazelles in the vicinity that danger is lurking. A dog signals its wish to be let inside the house by barking and signals the possibility that it might bite momentarily by displaying its fangs.11.Can you mention some typical expressions of phatic communion in Chinese? There is the dialog between Ms. P and Ms. Q. in section 1.5.5. When someone sneezes violently, do you say anything of the nature of phatic communion? Have you noticed your parents or grandparents say something special on such an occasion?Some of the typical phatic expressions in Chinese are: 吃了吗？家里都好吧？这是去哪里啊？最近都挺好的？ANSWER:If someone is sneezing violently, maybe you parents and grandparents may say: “Are you ok?”, “Do you need to see a doctor?”, “Do you need some water?”, “Do you need a handkerchief?”, “Do you have a cold?” or something like these to show their concerns.12．There are many expressions in language which are metalingual or self-reflexives, namely, talking about talk and think about thinking, for instance, to be honest, to make a long story short, come to think of it, on second thought, can you collect a few more to make a list of these expressions? When do we use them most often?ANSWER:To tell the truth, frankly speaking, as a matter of fact, to be precise, in other words, that is to say Such expressions are used most frequently when we want to expatiate the meaning of former clauses in anther way in argumentation.13. Comment on the following prescriptive rules. Do you think they are acceptable?(A) It is I.(B) It is me.You should say A instead of B because “be” should be followed by the nominative case, not the accusative according to the rules in Latin.(A) Who did you speak to?(B) Whom did you speak to?You should say B instead of A.(A) I haven't done anything.(B) I haven't done nothing.B is wrong because two negatives make a positive.ANSWER:(1) the Latin rule is not universal. In English, me is informal and I is felt to be very formal.(2) Whom is used in formal speech and in writing; who is more acceptable in informal speech.(3) Language does not have to follow logic reasoning. Here two negative only make a more emphatic negative. This sentence is not acceptable in Standard English not because it is illogical, but because language changes and rejects this usage now.14. The prescriptivism in grammar rules has now shifted to prescriptions in choice of words. In the “guidelines on anti-sexist language” issued by the British sociological association, some guidelines are listed below. Do you think they are descriptive and prescriptive? What’s your comment on them?(1) Do not use man to mean humanity in general. Use person, people, human beings, men and women, humanity and humankind.(2) colored: This term is regarded as outdated in the UK and should be avoided as it is generally viewed as offensive to many black people.(3) civilized: This term can still carry racist overtones which derive from a colonialist perception of the world. It is often associated with social Darwinist thought and is full of implicit valuejudgments and ignorance of the history of the non-industrialized world.ANSWER:They are undoubtedly descriptive. Guidelines are not rules that can determine whether a sentence is right or not. The guidelines advise you to avoid the use of particular words that are grammatically correct but offensive to some certain groups. Actually, they describe the way anti-sexist advocators speak and write.15. Why is the distinction between competence and performance an important one in linguistics? Do you think the line can be neatly drawn between them? How do you like the concept “communicative competence”?ANSWER:This is proposed by Chomsky in his formalist linguistic theories. It is sometimes hard to draw a strict line. Some researchers in applied linguistics think communicative competence may be a more revealing concept in language teaching than the purely theoretical pair—competence and performance.16. Which branch of linguistics do you think will develop rapidly in China and why?It is up to you to decide after you have gone through the whole book. At this stage, we suggest all branches of linguistics have the potential to flourish.17. The following are some well-known ambiguous sentences in syntactic studies of language. Can you disambiguate them?The chicken is too hot to eat.Flying planes can be dangerous.ANSWER:The chicken is too hot to eat.The chicken meat is too hot, so it cannot be eaten at the moment.The chicken feels so hot (maybe after some intense aerobic exercises) that it cannot start eating and needs to calm down first.Flying planes can be dangerous.The ambiguity comes from "flying planes". It can be deciphered as "the planes that is flying" or "to fly planes".18. There are many reasons for the discrepancy between competence and performance in normal language users. Can you think of some of them?ANSWEREthnic background, socioeconomic status, region of the country, and physical state (such as intoxication, fatigue, distraction, illness) vary from individual to individual.19. What do these two quotes reveal about the different emphasis or perspectives of language studies?(1) A human language is a system of remarkable complexity. To come to know a human language would be an extraordinary intellectual achievement for a creature not specifically designed to accomplish this task. A normal child acquires this knowledge on relatively slight exposure andwithout specific training. He can then quite effortlessly make use of an intricate structure of specific rules and guiding principles to convey his thoughts and feelings to others, ... Thus language is a mirror of mind in a deep and significant sense. It is a product of human intelligence, created anew in each individual by operations that lie far beyond the reach of will or consciousness.(Noam Chomsky: Reflections on Language. 1975: 4)(2) It is fairly obvious that language is used to serve a variety of different needs, but until we examine its grammar there is no clear reason for classifying its uses in any particular way. However, when we examine the meaning potential of language itself, we find that the vast numbers of options embodied in it combine into a very few relatively independent “networks”; and these networks of options correspond to certain basic functions of language. This enables us to give an account of the different functions of language that is relevant to the general understanding of linguistic structure rather than to any particular psychological or sociological investigation. (M. A. K. Halliday, 1970: 142)ANSWER:The first quote shows chil dren’s inborn ability of acquiring the knowledge of intricate structure of specific rules. It implies that the language user's underlying knowledge about the system of rules is the valuable object of study for linguists. The second attaches great importance to the functions of language. It regards the use of language as the choice of needed function. The meaning of language can be completely included by a few “networks” which is directly related to basic functions of language. It indicates the necessity to study the functions of language.20. You may be familiar with the following proverbs. How do you perceive them according to the arbitrariness and conventionality of language?The proof of the pudding is in the eating.Let sleeping dogs lie.You can’t make a silk purse out of a sow’s ear.Rome was not built in a day.When in Rome, do as the Romans do.All roads lead to Rome.ANSWER:20. Arbitrariness and conventionality derive from the choice of the subject matter. For example, in the “The proof of the pudding is in the eating.” The word “pudding” is selected arbitrarily, for we can use another word such as cheese instead of pudding without changing the associative meaning of the proverb. On the other hand, once such links between particular words and associative meaning are fixed, it becomes a matter of conventionality.21. Give examples of situations in which a usage generally considered non-standard (e.g. ain’t) would be acceptable, even appropriate.ANSWER21. In the talks between intimate friends, o ne may say “gimme that!” instead of “give me that!” and “wachya doin’?” instead of “what are you doing?” and this list may go on.22. The following are some book titles of linguistics. Can you judge the diachronic and diachronic orientation just from the titles?English Examined: Two centuries of Comment on the Mother-Tongue.Protean Shape: A Study in Eighteenth-century V ocabulary and Usage.Pejorative Sense Development in English.The Categories and Types of Present-Day English Word-Formation.Language in the Inner City: Studies in the Black English Vernacular.ANSWER22. Synchronic:Protean Shape: A Study in Eighteenth-century V ocabulary and Usage.The Categories and Types of Present-Day English Word-Formation.Language in the Inner City: Studies in the Black English Vernacular.Diachronic:English Examined: Two centuries of Comment on the Mother-Tongue.Pejorative Sense Development in English。

英语国家概况课后习题附答案

英语国家概况课后习题（附答案）Chapter 1Ⅰ.Read the following statement and decide whether they are ture(T) or false (F). —F—1.People in different parts of Britain like to use the name England to refer to their country.—T—2.The Severn River is the longest river of Britain ,which originates in Wales and flows through western England.—F—3.Today more than half of the people in Wales still speak the ancient Welsh language.—F—4.In terms of population and area,Northern Ireland is the second largest part of Britain.—F—5.Although the climate in Britain is generally mild ,the temperature in northern Scotland often falls bellow-10℃ in January.—T—6.The majority of the people in Britain are descendants of the Anglo-Saxons. —T—7.The Celtic people were the earliest known inhabitants of Britain. —F—8.English evolved into what is now described as Modern English from the late 16th century.Ⅱ.Choose the best answer to complete each of the following statements.1.The two main islands of the British Isles are—A—A.Great Britain and IrelandB.Great Britain and ShcotlandC.Great Britain and EnglandD.Great Britain and England2. —B—is the capital city of Scotland.A.BelfastB.EdinburghC.LondonD.Cardiff3. Among the four parts of the United Kingdom, —D—is the smallest.A.EnglandB.ScotlandC.WalesD.Northern Ireland4. English belongs to the —C—group of the Indo-European family of languages.A.CelticB.NormanC.GermanticD.Roman5. The introduction of Christianity to Britain added the first element of -—D—words to English.A.Danish and FinnishB.Dutch and GermanC.French and Italiantin and Greek6. The evolution of Middle English was reinforced by the—A—influence.A.NormanB.DutchC.GermanD.Danish7. Samuel Johnson’s dictionary was influential in establishing a standardform of—C—.8. At present,nearly —C—of the world’s populations communicate in English.A.halfB.a quarterC.one thirdD.one fifthⅢ.Give brief answers to the following questions.1.Why do tourist from all over the world like go to Scotland?2.How many periods can the development of the English language be dividedintoand what are they?3.Why did English become more important after the Black Death?Ⅳ.State your understanding of the following questions.1.Who are the British people?2.What is Standard English?Chapter 2Ⅰ.Read the following statements and decide whether they are true(T) or false(F). —T—1.Birtish history before 55 BC is basically undocumented.—T—2.The Anglo Saxon came to Britain in the 5th century.—F—3.The chief or king of the Anglo Saxon tribes exercised power at their own will.—T—4.The Viking began to attack the English coast in the 8th century. —T—5.Henry Ⅱ built up a large empire which included England and most of france. —F—6.The Magana Carta was designed to protect the rights of both the privileged class and townspeople.—F—7.The Hundred Years’War was a series of wars fought between the British and the Vikings for trade and territory.—T—8.In an effort to make a compromise between different religious factions,Queen Elizabeth Ⅰactually defended the fruit the Reformation. Ⅱ. Choose the best answer to complete each of the following statements.1. The—D—attack on Rome ended the Roman occupation in Britain in 410.A. NormanB. DanishC.CelticD.Germanic2. By the late 7th century, —D—became the dominant religion in England.A. Celtic ChristianityB. Anglo Saxons ChristianityC.Germanic ChristianityD. Roman Christianity3. The—C—marked the establishment of feudualism in England.A.Viking invasionsB. signing of the Magna CartaC.Norman ConquestD.adoption of common law4. The end of the Wars of the Roses led to the rule of—C—A.the House of ValoisB. the House of YorkC. the House of TudorD. the House of Lancaster5. The direct cause ofor the Reformation was King Henry Ⅷ’s effort to—A—.A.divorce his wifeB.break with RomeC.support the ProtestantD.declare his supreme power over the church6. The English Civil War broke out in1642 between —B—A.the Protestant and the PuritansB.the Royalist and the ParliamentarianC.the nobles and the peasantsD.the aristocrats and the Christians7. —A—was passed after the Glorious Revolution.A.The Bill of RightsB.The Act of SupremacyC.The Provisions of OxfordD.The Magna Carta8. The Industrail Revolution was accomplished in Britain by the middle of the—C—century.A.17thB.18thC.19thD.20thⅢ.Give brief answers to the following questions.1.What were Queen Victoria’s major achievements?2.What were the two camps in the World WarⅠ?3.Why did Britain cooperate closely with the Uinited States after World War Ⅱ?Ⅳ.State your understanding of the following questions.1.What were the results of the Industrail revolution in Britain?2.Explain the rise and fall of the British Empire.Chapter 3Ⅰ.Read the following statements and decide whether they are true(T) or false(F). —T—1.Conventions are regarded less important than the statutory law in the working of the England government.—F—2.The British monarchy has never been interrupted throughout the history. —F—3.In reality,the British King or Queen is the house of all government powers. —F—4.The British Parliament is the law making body of the Commonwealth of Nations.—F—5.The members of the House of Commons are appointed rather than elected. —T—6.The British Prime Minister is the leader of the minority party in Parliament.—F—7.Cabinet members are chosen by the Prime Minister from various political parties in Parliament.—T—8.The legal systems in England ,Wales,Scotland and Northern Ireland are much similar in terms of law,orgalizations and practice.Ⅱ. Choose the best answer to complete each of the following statements.1.The British government is characterized by a division of powers betweenthree of the following branchs EXCEPT the—C—.A.judiciaryB.legislatureC.monarchyD.executive2. The importance of the British monarchy can be seen in its effect on—D—.A.passing billsB.advising the gowernmentsC.political partiesD.public attitude3. As a revising chamber ,the House of Lords is expected to—B—the House ofCommons.A.rivalplementC.criticizeD.inspect4. —A—is at the center of the British political system.A.The CabinetB.The House of LordsC.The House of CommonsD.The Privy Council5. The main duty of the British Privy Council is to —B—.A.make decisionsB.give adviceC.pass billsD.supervise the Cabinet6. Generally speaking,the British Parliament operates on a —B—system.A.single partyB.two partyC.three partyD.multi party7. The politices of the Conservative Party are characterized by pragmatismand—D—.ernment interventionB.nationalization of enterprisesC.social reformD.a belief in individualiam8. In Britain,the parliamentary general election is held every—C—years.A.threeB.fourC.fiveD.sixⅢ.Give brief answers to the following questions.1.What are the three functions of the House of Commons?2.What kind of public image does the Liberal Democrats have in Britain?3.Why are independent candidates unlikely towin in the general elections? Ⅳ.State your understanding of the following questions.1.What do British electoral campaigns usually involves during the process ofa general election?2.What is the Commonwealth of Nations?Chapter 4Ⅰ.Read the following statement and decide whether they are ture(T) or false (F). —T—1.Britain was the first industrialized nation in the world.—T—2.The British economy experienced a relative decline during the postwar period.—F—3.Limited resources and high unemployment rate were persistent.—F—4.Thatcher’s revolution turned out to be agreat success in dealing with all the British economic and social problems.—T—5.The economic approach adopted by Tony Blair was different from that of the old Labor Party and the Conservetive Party.—T—6.Blair made the Bank of England independent in oder to separate politics from economic policy.—F—7.Britain is an important oil exporter since its oil industry has a long history.—T—8.Nuclear power is one of the major energy sources in Britain.Ⅱ.Choose the best answer to complete each of the following statements.1. The —A—in the early 1970s worsened an already stagnant economy in Britain.A.oil crisisB.high inflation ratesrge importsD.unemployment problem2. Of the following practices, —C—did not belong to Thatcher’s social welfare reform.A.reducing child benefitsB.shortening the period of unemployment benefitsC.reducing unemploymentD.lowering old age pension3. The Blair government was successful in the following aspect EXPECT—D—.A.limiting government spendingB.keeping inflation under controlC.reducing unemploymentD.reducing inequality4. Britain has devoted about—C—of its land area to agriculture.A.50%B.60%C.70%D.80%5. Britain’s important fishing areas include all the following EXCEPT—D—.A.the North SeaB.the English ChannelC.the area around the Irish coastD.the sea area between Britain and Ireland6. Coal mining industry in Britain provides—B—of the energy consumed in thecountry.A.one thirdB.one fourthC.one fifthD.two thirds7. The car industry in Britain is mostly —A—.A.foreign ownedB.state ownedC.joint ownedD.privately owned8. Of the following sectors in Britain, —C—has experienced spectacular growthsince the end of the World War Ⅱ.A.agricultureB.the energy industryC.the service sectorD.the manufacturing industryⅢ.Give brief answers to the following questions.1.What was the negative aspect of Thatcher’s reform in the early 1980s.2.What are the charactoristics of Britain’sagriculture?3.What happened to Britain’s beef industry in the mid 1990s?Ⅳ.State your understanding of the following questions.1.What were the major causes of Britain’s relative economic decline in the postwar period?2.Why do developed nations like Britian encourage the development of the service industry?Chapter 5Ⅰ.Read the following statement and decide whether they are ture(T) or false (F). —F—1.The Britain government has been responsible for education since the early 1800s.—F—cation inBritain is compulsory for all children between the ages of 6 and 15.—F—3.The National Curriculum is compulsory in both the states system and the independent system.—T—4.When children finish their schooling at 16,they are required to take a national GCSE examination.—T—5.Graduates from state schools in Britain have a less favorable chance to enter famous universities than those from independent schools.—F—6.The Times is the world oldest Sunday newspapers.—F—7.The BBC World Service broadcast only in English throughout the world. —T—8. Some British holidays are celebrated to mark important events in the Christian calendar,and some others are related to local customs and traditions.Ⅱ.Choose the best answer to complete each of the following statements.1. In Britain,the division between grammer schools and vocational schools was ended by the introduction of comprehensive schools in the —D—.A.1930sB.1940sC.1950sD.1960s2. Over—C—of British children receive primary and secondary education through the independent system.A.5%B.6%C.7%D.Partially funded 8%3. Partially funded by central government grants,most of the British universities receive the remaining funds from all the following sources EXCEPT—B—.A.tuition feesB.loansC.donationsD.corporate contributions4. To be admitted to the Open University, one needs—B—.A.some educational qualificatonsB.no educational qualificationsC.the General Certificate of Education Advanced level.D. the General Certificate of Secondary Education5. Among Britain’s quality press,the following newspapers are regarded asthe “Big Three”EXCEPT—C—.A.The TimesB.The GuardianC.The ObserverD.The Daily Telegraph6. Life On Earth is a kind of —C—program produced by the BBC is popularworldwide.A.radioB.dramaC.documentaryD.soap opera7. —D—is Britain’s top pay television provider.A.BSBB.SkyTVC.BBCD.BSkyB8. The following Christmas traditions are particularly British EXCEPT—A—.A.Trooping the ColorB.the Queen’s Christmas messageC.Boxing DayD.the Christmas pantomimeⅢ.Give brief answers to the following questions.1.What used to be the major functions of grammer schools and vocational schools in Britain.2.What kind of subjects do British comprehensive schools provide?3.In what ways do British universities enjoy complete academic freedom?4.What role does the media play in Britain leisure culture?Ⅳ.State your understanding of the following questions.1.What are the general features of Britain’s independent schools?2.What are the “Quality Press”and the “tabloids”in Britain?Chapter 6Ⅰ.Read the following statement and decide whether they are ture(T) or false (F).—F—1.The Canterbury Tales is representative work of the old English period. —T—2.The Renaissance is characterized by admiration of the Greek and Latin classic works.—T—3.As a great English peot,Alexander Pope also translated Homer’s Iliad. —F—4.Jhonathan Swift is probably the foremost prose satirist in the English language,and Robinson Crusoe is his masterpiece.—F—5.William Wordsworth amd Sumuel Taylor Colerdge brought the Romantic Movement to its height.—F—6.Lord Byron distinguished himself by the musical quality of his short poems,such as “Ode to the West Winds”.—F—7.Jane Austen is a well known novelist of the stream of consciousness school. —T—8.Joseph Conrad is classified as a forerunner of Modernism,which prevailed before World War Ⅱ.Ⅱ.Choose the best answer to complete each of the following statements.1. The most significant achievement of the English Renaissance is—B—.A.poetryB.dramaC.novelD.pamphlet2. —C—is viewed as Romantic poetry’s “Declaration of independence”.A. “I Wonder Lonely as a Cloud”B.Don JuanC.The preface to Lyrical BalladsD.Prometheus Unbound3.Of Dicken’s novels, —B—is considered most autobiographical.A.A Tale of Two CitiesB.Davied CopperfiedC.Oliver TwistD.Great Expectations4. —D—is a representative of English Critical Realism in the turn of the 19thcentury.A.Robert Louis SetevensonB.John MiltonC.Joseph ConardD.Thomas Hardy5. Of the following books, —C—is NOT written by Thomas Hardy.A.Jude the ObscureB.Tess of the d’UrbervillesC.Adam BedeD.The Return of the Native6. —A—is not included in the modernist group.A.Oscar WildeB.Virginia WoolfC.William Bulter YeatsD.T.S.Eliot7. Of the following writers, —B— is NOT a Nobel Prize winner.A.Samuel BeckettB.James JoyceC.William GoldingD.V.S.Naipual8. Waiting for Godot is written by—A—.A.Samuel BeckettB.Geroge OrwellC. William GoldingwranceⅢ.Give brief answers to the following questions.1.What are the three catergries of Shakespeare’s plays and their representatives?2.What is Critical Realism?3.What are the two new literary trends prevailing at the end of 19th century?4.What is the stream of consciousness?Ⅳ.State your understanding of the following questions.1.What is Romanticism?2.What are the characteristics of English literauture in the 20th century? Chapter 7Ⅰ.Read the following statement and decide whether they are ture(T) or false (F). —F—1.The Republic of Ireland occupies the entire area of the island of Ireland. —F—2.The earliest inhabitants in Ireland were Celtic tribes from Europe. —F—3.In the 1800s, Ireland gained in prosperity because it became a part of Britain.—T—4.In the 1930s, Ireland was not indeed a republic, but belonged to the British Commonwealth of Nations.—F—5.Ireland’s economy wasn’t affected by World War Ⅱ because it remained neutral during the war.—F—6.In 1949, Britain recognized the independence of the Irish Republic and returned the six northern counties.—F—7.English is the only official language in Ireland because the majority of people speak it as their mother tongue.—T—8.Catholicism in Ireland is more than a mere matter of private faith, but of public identity.Ⅱ.Choose the best answer to complete each of the following statements.1. --B-- established a unified Irish culture and language in the 6th century BC.A. Hunter-gatherers from BritainB. Celtic tribesC. British invadersD. The Vikings2. Divergent views about --C--resulted in the Irish Civil War.A. the Act of UnionB. the Unilateral Declaration of IndependenceC. the Anglo-Irish TreatyD. the Anglo-Irish Agreement3. --C---was the first Irish President to visit Queen Elizabeth Ⅱ.A. Eamon de ValeraB. John A. CostelloC. Mary RobinsonD. Albert Reynolds4. ---D--brought Anglo-Irish relations to a new height.A. The British recognition of the Irish RepublicB. The signing of the Downing Street DeclarationC. The signing of the Belfast AgreementD. The IRA’s formal declaration of the disarmament in 20055. In Ireland, the head of state is--B---A. the Prime MinisterB. the PresidentC. the British monarchD. the General Governor6. ---C---has been the dominant party in Ireland since 1930s and supportspeaceful reunification of the island of Ireland.A. Fine GaelB. The Labor PartyC. Fianna FailD. The Progressive Democrats7. Emigration in Ireland started since the --A--A. medieval periodB. 17th centuryC. Great Potato FamineD. early 18th century8. Ireland now has a --B-- economy.A. agriculture-basedB. knowledge-basedC. industry-basedD. foreign investment-basedⅢ.Give brief answers to the following questions.1. Why was Cork given the nickname “the Rebel County”?2. Who were the first groups of people that came to Ireland?3. Why did Ireland remain neutral in World War Ⅱ？Ⅳ.State your understanding of the following questions.1. What is the significance of the following documents: the Act of Union, the Anglo-Irish Treaty, the Anglo-Irish Agreement and the Belfast Agreement?2. What are the goals of the main political parties in Ireland?Chapter 8Ⅰ.Read the following statement and decide whether they are ture(T) or false (F). —F—1.The eastern highlands formed by the Appalachian Range hold one-third of the country’s continental territory.—T—2.The climate in the United States can be classified as temperate, with some mild subtropical and tropical zones.—T—3.A 50-centimeter rainfall line runs through the middle of the United States. —T—4.New York is composed of five boroughs, including Manhattan, Brooklyn, the Bronx, Staten Island and Queens.—F—5.San Francisco is the second largest city after New York and the world-famous Hollywood is located here.—T—6.During the 1830s and the 1840s, many Northern Europeans and Irish immigrants came to America.—T—7.Almost half of the immigrants coming to the United States in the 1980s were Asians.—T—8.Basic American cultural values are freedom, equality and desire to work hard for a higher standard of living.Ⅱ.Choose the best answer to complete each of the following statements.1. The U.S. lies in --B--North America, with Canada to the north, Mexico to the south, the Atlantic to its ----and the Pacific to its -----.A. northern, east, westB. central, east, westC. southern, west, eastD. western, west, east2. The continental United States has--C---states.A. 50B. 49C. 48D. 353. The state of --A--- is the largest in area of all the U.S. states.A. AlaskaB. HawaiiC. TexasD. Florida4. The longest river in the U.S. is ---B---A. the Missouri RiverB. the Mississippi RiverC. the Ohio RiverD. the Lake Itasca5. Some of the world-famous universities like Harvard, Yale and MIT arelocated in--C--.A. the SouthB. the WestC. New EnglandD. the Midwest6. San Francisco, Los Angeles and San Diego all belong to --D--A. MontanaB. UtahC. MaineD. California7. The Immigration Act of 1924 restricted further immigration into the UnitedStates, particularly from--A----.A. EuropeB. AsiaC. AfricaD. South America8. The characteristics of the dominant American culture are--D-A. English-speaking, Northern European, Roman Catholic and middle-classB. English-speaking, Western European, Roman Catholic and upper-classC. English-speaking, Northern European, Protestant and upper-classD. English-speaking, Western European, Protestant and middle-classⅢ.Give brief answers to the following questions.1. How is the American population distributed?2. Why was the Immigration Act of 1924 instituted?Ⅳ.State your understanding of the following questions.1. Why is the United States regarded as a “melting pot”and a “salad bowl”?2. What do you think is the best way to help assimilation in a multiculturalsociety?Chapter 9Ⅰ.Read the following statement and decide whether they are ture(T) or false (F).—T—1.American was named after Amerigo Vespucci,who arrived on the new continent after Columbus.—F—2.The Second Continental Congress was held in Phiadelphia,and the Continental Army and Navy was established under the command of ThomasJerfferson.—T—3.The Amemrican Civil War not only put an end to slavery,but also make American a single,indivisible nation.—F—4.Most American people approved of the Vietnam War.—T—5.In1990,American troops and the troops from allied nations took joint military action in order to drive Iraqi troops out of Kuwait.—F—6.According to the American government,Saddam Hussein and Osama bin Laden were responsible for the terrorist event on Septemble11,2001.—T—7.The Bush administration regarded Iraq a nation among the “axis of the evil”.—F—8.On March 20,2003,American and United Nations’troops, supposed by several other countries,began an invasion of Iraq.Ⅱ.Choose the best answer to complete each of the following statements.1. The first successful English conoly in North America was foundedat—C—in——.A.Jamestown,LouisianaB.Boston, MassachusettsC.Jamestown,VirginiaD.Plymouth,Gergia2. The Seven Years’War occurred between—C—.A.the French and the American IndiansB.the French and the SpanishC.the French and the BritishD. the British and the American Indians3. “No taxation without representation”was the rallying slogan of—D—.A.the settlers of VirginiaB.the people of PennsylvaniaC.the colonists in New EnglandD.the people of the 13 colonies4. In May 1775, —B—was held in Phiadelphia and began to assume the functionsof a provisional government.A.the First Continental CongressB.the Second Continental CongressC.the Boston Tea PartyD.the Congress of Confederation5. Abraham Lincoln issued the —C—to grant freedom to all slaves.A.Declaration of IndependenceB.ConstitutionC.Emancipation ProclamationD.Bill of Rights6. The policy of the United States was —A—at the beginning of the two WorldWars.A.nuetralityB.full involvementC.partial involvementD.appeasement7. President —C— introduced the NⅡew Deal to deal with the problems of theGreat Depression.A.WilsonB.TrumanC.RooseveltD.Kennedy8. The Vietanam War was a long time suffering for Americans,and its continuedthroughout the terms of president—D—.A.Johnson,Nixon and FordB.Truman,Eisenhower and KennedyC.Kennedy,Johnson and NixonD.Eisenhower,kennedy and JohnsonⅢ.Give brief answers to the following questions.1.Why did American change its policy and enter World War Ⅱ?2.What were Nixon’s well known contributions during his presidency?3.What were the measure s of Reagan’s economic program?Ⅳ.State your understanding of the following questions.1.What was the course of the American Civil War?2.What made the United States a powerful country by the end of World War Ⅱ? Chapter 10Ⅰ.Read the following statement and decide whether they are true(T) or false (F). —F—1.The Bill of Right was written into the Constitution in 1787.—T—2.The form of the American government is based on three main principles: federalism, the separation of powers and respect for the Constitution and rule of law.—F—3.The US Congress consists of two houses: the House of Commons and the Houseof Lords.—T—4.The judicial branch of the US federal government consists of a series of courts: the supreme court, the courts of appeals and the district courts.—F—5.The Democratic Party is conservative in terms of its ideology.—T—6.The American presidential campaigns adhere to the “winner-takes-all”practice.—F—7.The American foreign policy throughout World War 2 was neutrality.—T—8.The American foreign policy during the Cold War period was containment and intervention.Ⅱ.Choose the best answer to complete each of the following statements.1.The US.Constitution came into effect in –B--A. 1787B. 1789C. 1791D.17932. The Constitution of the United States --C--A. gives the most power to CongressB. gives the most power to thepresidentC. tries to give each branch enough power to balance the othersD.gives the most power to the Supreme Court3.The Bill of Right –B--A. defines the rights of Congress and the rights of the PresidentB. guarantees citizens of the US specific individual rights and freedomC. is part of the Declaration of IndependenceD. has norelationship with the Constitution.4.The terms for a Senator and Representative are __D_ and ___ yearsreapectively.A. 2;4B.2;3C. 2;6D.6;25. All the following can make legislative proposals EXCEPT –C--A. the senatorB. the RepresentativeC. the secretary of stateD. the president6.The following are all powers of the President EXCEPT CA. vetoing any bills passed by CongressB. appointing federaljudges when vacancies occurC. making lawsD.issuing executive orders7. The Supreme Court is composed of __D_ justicesA. 6B. 7C. 8D.98. The president is directly voted into office by _C__A. all citizens of AmericaB. the citizens over 18 years oldC. electors elected by the votersD. the senators and therepresentativesⅢ.Give brief answers to the following questions.1.what are the two characteristics of the us constitution?2.what are the qualifications for a senator and a representative respectively?3.what are the major powers of the Supreme Court?4.what are the differences between the Democrats and the Republicans in termsof political ideology.Ⅳ.State your understanding of the following questions.1.How is the American President voted into office? What are your ideas aboutthe American election?2.what was President Eisenhower’s foreign policy and what were the consequences?Chapter 11Ⅰ.Read the following statement and decide whether they are true(T) or false (F).—T—1.America is the world’s largest industrial nation.—T—2.In the US Constitution ,the recognition of the importance of ‘intellectual property’ could be identified.—F—3.Although slavery was abolished as a result of the Civil War, the owners of plantations in the South made more profits from selling their agriculturalproducts.—F—4. President Roosevelt’s New Deal had little effect in dealing with the economic crisis in the early 1930s—F—5. The 1960s was a period of consolidation for the American business.—T—6. American agriculture exports outweigh imports, leaving a surplus in the agricultural balance of trade.—T—7. Auto production is one of the important sectors in American manufacturing industry.—F—8. The growth and decline of the American foreign trade has little to do with the world economy.Ⅱ.Choose the best answer to complete each of the following statements.1.America produces a major portion of the world’s products in the followingfields EXCEPT __C_A. machineryB. automobilesC. oreD. chemicals2. The modern American economy progressed from___ to____, and then to __C__A. a colonial economy, a handcraft economy, an industrial economyB. a farming economy, a handcraft economy, an industrial economyC. a colonial economy, a farming economy, an industrial economyD. a handcraft economy, a farming economy, an industrial economy3. Chartered companies were NOT granted the _D__ by the British King or Queen.A. political authorityB. economic rightsC. judicial authorityD. diplomatic authority4. __D__ urged the federal government to establish a national bank.A. George WashingtonB. President RooseveltC. Abraham LincolnD. Alexander Hamilton5. The following inventions took place during the ‘second industrialrevolution’ EXCEPT_C__A. typewriterB. telephoneC. electric lightD. refrigerator。

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chapter1习题答案一、名词解释1、芽孢：某些细菌在其生长发育后期, 在细胞内形成的一个圆形或椭圆形、壁厚抗逆性强的休眠构造。

2、糖被：包被于某些细菌细胞壁外的一层厚度不定的透明胶状物质, 成分是多糖或多肽。

6、质粒：指细菌细胞质内存在于染色体外或附加于染色体上的遗传物质，绝大多数由共价闭合环状双螺旋DNA分子构成。

7、微生物：是指肉眼看不见或看不清楚的微小生物的总称。

包括细菌、放线菌、霉菌、酵母菌和病毒等大类群。

8、鞭毛：是从细菌质膜和细胞壁伸出细胞外面的蛋白质组成的丝状结构，使细胞具有运动性。

9、菌落：将单个或一小堆同种细胞接种到固体培养基表面，经培养后会形成以母细胞为中心的一堆肉眼可见的、有一定形态构造的子细胞集团称菌落。

10、放线菌：一类呈丝状生长、以孢子繁殖、陆生性较强的原核微生物。

11、荚膜：有些细菌在生命过程中在其表面分泌一层松散透明的粘液物质，这些粘液物质具有一定外形，相对稳定地附于细胞壁外面，称为荚膜。

二. 填空1、芽孢的结构一般可分为孢外壁、芽孢衣、皮层和核心四部分。

2、细菌的繁殖方式主要是裂殖，少数种类进行芽殖。

3、放线菌产生的孢子有有性孢子和无性孢子两种。

4、细菌的核糖体的沉降系数是70s 。

5、细菌的鞭毛有三个基本部分，分别为基体，钩形鞘，和鞭毛丝。

6、微生物修复受损DNA的作用有__光复活作用__和_切除修复。

7、基因工程中取得目的基因的途径有_3_条。

8、在低渗溶液中，G+菌的肽聚糖被破坏，细胞将涨破。

9、原核细胞通过其附属物称为性菌毛从一个细胞向另一个细胞转移DNA。

10、支原体细胞膜中含有甾醇，与动物相似。

11、脂多糖是革兰氏阴性菌细胞壁特有成分,它由三部分组成，即类脂A、核心多糖和O-特异性侧链。

12、革兰氏阴性菌的细胞壁有两层，内层称为电子致密层，约2-3nm厚以肽聚糖为主要成分，外层称为脂多糖层，约8nm 厚，不含肽聚糖。

13、革兰氏阳性菌的细胞壁有一层,其厚度为20-80nm磷壁酸是革兰氏阳性细菌特有的化学成分。

14、在周质空间中，存在着多种蛋白质，包括: 水解酶类、合成酶类、结合蛋白和受体蛋白。

15、芽孢是某些细菌在生活史的一定阶段形成的没有生长活性的休眠体，对热，干燥和辐射具有抗性。

16、芽孢具有孢外壁、芽孢衣、皮层、芽孢壁、孢芽膜、芽孢质和芽孢核区等多层结构。

17、大肠杆菌鞭毛基体由四个盘状物构成,他们分别称为L-环、P-环、S-环和M-环。

18、荚膜的主要成分有多糖和多肽等，常采用负染色方法进行荚膜染色。

19、有些细菌细胞质内含有聚β-羟基丁酸，这是碳源和能源贮藏物质，而异染色颗粒主要成分是无机偏磷酸的聚合物，它是一种无机磷酸的贮藏物质。

20、蓝细菌的异形胞仅含少量藻胆素，缺乏异形胞，他们不在产生氧气或固定CO2。

这样，它们从结构和代谢上提供一个无氧环境，使固氮酶保持活性。

21、细菌基本形态有球状，杆状和螺旋状三种。

22、细菌的大小是以微米作为计量单位，而病毒的大小是以纳米作为计量单位。

23、细菌细胞壁的主要成分是肽聚糖，它主要由N-乙酰葡萄糖氨、N-乙酰胞壁酸二部分组成。

24、测定微生物细胞大小的单位为微米、纳米。

25、微生物学的奠基人是_巴斯德、_柯赫_ 。

26、根据放线菌菌丝形态和功能，其菌丝可分为营养菌丝、气生菌丝和孢子丝三种。

27、革兰氏染色操作的关键步骤是乙醇脱色。

28、Bacillus thuringiensis是苏云金杆菌的学名，_Thuringiensis_是种名。

29、每种微生物都有自己的最适宜的pH值和一定的pH适宜范围。

大多数细菌的最适pH为_6.5-7.5_，放线菌的最适pH为_7.5-8.0_。

30、在人为条件下，用溶菌酶除尽革兰氏阳性菌原有细胞壁后所得到的仅有一层细胞膜包裹着的圆球状渗透敏感细胞称为原生质体。

31、细菌荚膜的作用是_保护作用_和贮藏养料、作为透性屏障或（和）离子交换系统，可保护细菌免受重金属离子的毒害、表面附着作用、细菌间的信息识别作用。

32、原核微生物的细胞壁特有的组分是_肽聚糖_，它是由_双糖单位_、四肽尾或四肽侧链_和肽桥或肽间桥组成的亚单位聚合而成。

33、微生物的特点是体积小，面积大；吸收多，转化快；生长旺，繁殖快；适应性强，易变异；分布广，种类多。

34、Staphylococcus aureusBacillus是金黄色葡萄球菌的学名，其中Staphylo coccus是属名，aureus__是种名。

35、鞭毛主要化学成分为__蛋白质__，鞭毛主要功能为_运动__。

36、脂多糖(LPS)是革兰氏_阴性_菌细胞壁_外膜_层的主要成分，它由_类脂A，核心多糖，O-特异性侧链__三部分构成。

37、细菌的糖被是指_包被于某些细菌细胞壁外的一层厚度不定的透明胶状物质。

包括三种类型，其中包裹在细胞群上的称_菌胶团__。

38、细菌的明胶柱穿刺培养特征常用来鉴别菌株_产蛋白酶_性能。

39、在菌体形态观察中，需要进行制片后才能在显微镜下观察，观察细菌时采取的制片方法是_涂片法，观察放线菌时采取的制片方法是__压（印）片法，观察真菌采取的制片方法是水浸片。

40、原核细胞的细胞膜内陷所形成的囊状或管状结构称间体。

41、是芽孢所特有的化学物质。

一般它随着芽孢的形成而形成，随芽孢的萌发而消失。

42、放线菌是一类介于细菌和真菌之间，又更接近于细菌的原核微生物。

它的菌丝因其形态和功能不同可分、、。

43、革兰氏染色法是鉴别细菌的重要方法，染色的要点如下：先用a 染色，再加b 处理，使菌体着色，然后用 c 脱色，最后用 d 复染，呈 e 为革兰氏阳性反应。

三. 辨别正误1. O-特异侧链决定G+菌细胞壁抗原特异性。

（正确）2. 芽孢形成过程中，芽孢衣形成在前，前芽孢形成在后（错误）3. 原生动物的鞭毛和纤毛都是9+2型的。

（错误）4. 芽孢可保持休眠数千年，遇合适环境可发芽形成一个细胞。

（正确）5. 立克次氏体没有细胞壁，可通过细菌过滤器。

（错误）6. 青霉素可抑制肽尾与肽桥间的转肽作用，从而杀死细菌。

（正确）7. 古生菌细胞壁中不含有肽聚糖。

（正确）8. 原核细胞和真核细胞的细胞膜在结构和功能上有明显的不同。

（错误）9.细菌细胞的分裂面决定了其细胞的排列方式。

（正确）10细菌的下列结构可能会增加其致病性：鞭毛，荚膜，菌毛，脂多糖。

（正确）11.细菌不含有叶绿体，所以不能进行光合作用。

（错误）12.细胞膜是一个流动结构，其上的蛋白易于被除去。

（正确）13.原核细胞和真核细胞的细胞膜在结构和功能上有明显的不同。

（错误）14.衣原体是古生菌。

（错误）15.放线菌的繁殖方式主要是芽殖。

（错误）16.在一定条件下, 细菌的菌落特征可作为其分类鉴定的依据。

（正确）17.枯草芽胞杆菌、大肠杆菌都属于革兰氏阳性菌。

(错误)18.放线菌的细胞构造和细胞壁化学组成与细菌相似，经革兰氏染色也可分成G+菌和G- 菌.（错误）19.革兰氏阳性细菌细胞壁的主要成分是垣酸和肽聚糖。

（正确）20.一种细菌的学名是Staphylococcus aureus,其中aureus属名，是拉丁文的名词，Staphyloccus是种名，是拉丁文的形容词。

（错误）21.细菌是低等原核生物，所以它没有有性繁殖，只具无性繁殖形式。

（正确）22.蓝细菌是一类含有叶绿素a、具有放氧性光合作用的原核生物。

（正确）23.大肠杆菌和枯草芽孢杆菌属于单细胞生物，唾液链球菌和金黄色葡萄球菌属于多细胞生物。

(错误)24.白僵菌是一种常用来生产微生物农药的细菌。

（错误）四. 单项选择1、下述不是磷壁酸的功能的是：AA内毒素B细胞壁抗原特异性C 噬菌体的吸附位点D 调节阳离子进出细胞2、下述细菌能通过细菌过滤器的是：CA大肠杆菌 B 立克次氏体 C 支原体 D 分枝杆菌3、G-菌含有的周质空间BA 是细胞内吞作用位点B 富含消化酶类C 蛋白质合成场所D 含有溶菌酶4、G+细菌细胞壁中含有BA 脂多糖B 磷壁酸C 结晶紫D 溶菌酶5、不是脂多糖的功能的是BA G-细菌细胞壁成分B 允许物质通过外膜C 抗原功能D 内毒素6、球状细菌分裂后排列成链状称为 BA双杆菌 B 链球菌 C 螺旋体 D 葡萄球菌7、异染粒，羧酶体，磁小体称作为 DA 叶绿体B 间体C 菌毛D 内含物8、螺旋体含有而螺菌不含有的是 AA 轴丝B周生鞭毛C菌毛 D 四分体9、趋化性是指微生物能够CA 与土壤表面粘着B 逃避噬菌作用C 向化学刺激运动或避D 在不利条件下求生存10、下列叙述正确的是DA 一个细胞可产生多个芽孢B芽孢进行二分裂C一个细胞产生一个芽孢并保持生长D芽孢是休眠体11、下列不是原核细胞结构的是BA 染色体B 叶绿体C 鞭毛D荚膜12、用光学显微镜可辨别原核和真核细胞之间不同的是DA 核糖体B鞭毛C细胞膜D核13、致病性革兰氏阴性细菌细胞壁组成中具有( C )A.核心多糖B.O-侧链C.类脂AD.脂蛋白14、鞭毛的化学组成主要是( C )A.多糖B.脂类C.蛋白质D.核酸15、在下列微生物中( B )能进行产氧的光合作用.A.链霉菌B.蓝细菌C.紫硫细菌D.大肠杆菌16、下面不属于古细菌的原核微生物是( C )A. 产甲烷菌B. 硫酸盐还原菌C. 反硝化细菌D. 极端嗜盐菌17、原核生物细胞中核糖体沉降系数为（A）A.70SB. 90SC. 60SD.80S18、下面关于芽孢的叙述，正确的是（D）A所有细菌在其生长的一定阶段，均可形成芽孢。

B所有细菌在其生长的全部阶段，均可形成芽孢。

C所有芽孢细菌在其生长的全部阶段，均可形成芽孢。

D所有芽孢细菌在其生长的一定阶段，均可形成芽孢。

19、G+细胞壁的主要化学成分有（D）A. 萄聚糖B.脂多糖C.几丁质D.肽聚糖20、制细菌标本片采取的制片方法是（A）A水浸片法B.涂片法C.印片法D.组织切片法21、G-细胞壁的主要化学成分有（D）A. 萄聚糖B.纤维素C.几丁质D.肽聚糖22、原核微生物能量代谢及很多合成代谢的部位是( A )A.质膜B.线粒体C.高尔基体D.核糖体23、显微镜中,物镜的放大倍数越大,工作距离( B )A.越长B.越短C.不变D.无法判断24、E.coli细菌的鞭毛着生位置是（D）A.偏端单生B.两端单生C.偏端丛生D.周生鞭毛25、细菌细胞的( A)结构与其抗原性相关。

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