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$_get函数

$_get函数

$_get函数摘要:1.$_get 函数介绍2.$_get 函数的作用3.$_get 函数的使用方法4.$_get 函数的返回值5.$_get 函数的注意事项正文:$_get 函数是PHP 中的一个内置函数,用于获取GET 请求中的参数值。

在处理网页表单提交或URL 传递参数时,这个函数非常实用。

接下来,我们将详细介绍这个函数。

首先,我们来看一下$_get 函数的作用。

它可以获取GET 请求中的参数值,并将这些值保存在数组中。

这样一来,我们就可以通过遍历数组来获取所需的参数值,并对这些值进行处理。

接下来,我们来学习一下$_get 函数的使用方法。

在PHP 中,你可以通过以下方式使用$_get 函数:```php$variable = $_GET["variable_name"];```其中,`$variable`是一个变量,用于存储获取到的参数值;`variable_name`是参数的名称,需要与GET 请求中的参数名保持一致。

当使用$_get 函数时,它将返回一个数组,其中包含了所有GET 请求中的参数值。

这些值可以按照参数名的顺序进行访问,例如:```php$ parameters = $_GET;foreach ($parameters as $name => $value) {echo "参数名:" .$name .",参数值:" .$value ."<br>";}```此外,$_get 函数还可以用于获取特定参数的值。

例如,如果你想获取名为`username`的参数值,可以使用以下代码:```php$username = $_GET["username"];```需要注意的是,如果请求中没有指定`username`参数,或者参数名拼写错误,那么`$username`将包含一个空值(null)。

getnumber函数的用法

getnumber函数的用法

getnumber函数的用法在编程中,函数是十分重要的一个概念,它可以将一段代码封装为一个可重用的单元,从而提高代码的效率和可读性。

在本文中,我们将围绕“getnumber函数的用法”这一主题展开讨论,具体内容如下。

1. 什么是getnumber函数?getnumber函数是一种用于获取用户输入的整数的函数。

它通常用于需要用户输入数字的程序中,比如计算器、游戏等。

在JavaScript中,实现这个函数的代码如下:function getnumber() {var num;do {num = prompt("请输入一个整数:");} while (isNaN(num) || num == "");return parseInt(num);}该函数首先声明一个变量num,并使用do-while循环语句来持续获取用户输入,直到输入的值为整数为止。

如果用户输入的不是整数,则会弹出错误提示框,并继续循环获取。

最后将获取到的整数值以整数类型返回给函数的调用者。

2. 如何调用getnumber函数?要调用getnumber函数,我们需要在代码中先声明该函数,然后在程序中使用函数名即可。

比如下面这个例子:var a = getnumber();var b = getnumber();alert("您输入的两个数字相加等于" + (a + b));该程序中,我们用getnumber函数获取了两个数字a和b,然后把它们相加并弹出提示框。

在调用getnumber函数时,我们不需要传递任何参数,因为该函数内部会通过提示框与用户进行交互,获取所需的数字。

3. getnumber函数的注意事项虽然getnumber函数可以方便地获取用户输入的数字,但在使用时还需要注意一些事项,具体如下:3.1 输入类型getnumber函数只能获取整数类型的数字,如果用户输入了非整数类型,函数会弹出错误提示框并要求重新输入。

2002年6月英语六级真题及答案

2002年6月英语六级真题及答案

2002年6月英语六级真题Part I Listening Comprehension (20 minutes)Section ADirections:In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversationand the question will be spoken only once. After each question there will be apause. During the pause, you must read the four choices marked A), B), C) and D),and decide which is the best answer. Then mark the corresponding letter on theAnswer Sheet with a single line through the center.Example:You will hear:You will read:A) 2 hours.B) 3 hours.C) 4 hours.D) 5 hours.From the conversation we know that the two were talking about some work they will start at 9 o’clock in the morning and have to finish at 2 in the afternoon. Therefore, D) “5 hours” is the correct answer. You should choose [D] on the Answer Sheet and mark it with a single line through the center.1. A) Registering for courses.B) Buying a new computer.C) Getting directions.D) Studying sociology.2. A) The man will probably have to find a roommate.B) The man is unlikely to live in the suburbs.C) The man will probably have to buy a car.D) The man in unlikely to find exactly what he desires.3. A) Painting a picture.B) Hosting a program.C) Designing a studio.D) Taking a photograph.4. A) The woman doesn’t think it a problem to get her passport renewed.B) The woman has difficulty renewing her passport.C) The woman hasn’t renewed her passport yet.D) The woman’s passport is still valid.5. A) A prediction of the future of mankind.B) A new drug that may benefit mankindC) An opportunity for a good job.D) an unsuccessful experiment.6. A) A lesson requires students’ active involvement.B) Students usually take an active part in a lecture.C) More knowledge is covered in a lecture.D) There is a larger group of people interested in lessons.7. A) Neither of their watches keeps good time.B) The woman’s watch stopped 3 hours ago.C) The man’s watch goes too fast.D) It’s too dark for the woman to read her watch.8. A) She’s proud of being able to do many things at the same time.B) She is sure to finish all the things in a few hours.C) She dreams of becoming a millionaire someday.D) She’s been kept extremely busy.9. A) He wants his students to be on time for class.B) He doesn’t allow his students to tell jokes in class.C) He is always punctual for his class.D) He rarely notices which students are late.10. A) He is nervous about the exam.B) He is looking for a job.C) He doesn’t dare to tell lies.D) He doesn’t know how to answer the questions.Section BDirections:In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once.After you hear a question, you must choose the best answer from the four choicesmarked A), B), C) and D). Then mark the corresponding letter on the Answer Sheetwith a single line through the center.Passage oneQuestion 11 to 14 are based on the passage you have just heard.11. A) She was bored with her idle life at home.B) She was offered a good job by her neighbour.C) She wanted to help with the family’s finances.D) Her family would like to see her more involved in social life.12. A) Doing housework.B) Looking after her neighbour’s children.C) Reading papers and watching TV.D) Taking good care of her husband.13. A) Jane got angry at Bill’s idle life.B) Bill failed to adapt to the new situation.C) Bill blamed Jane for neglecting the family.D) The children were not taken good care of.14. A) Neighbours should help each other.B) Women should have their own careers.C) Man and wife should share household duties.D) Parents should take good care of their children.Passage TwoQuestions 15 to 17 are based on the passage you have just heard.15. A) To predict natural disasters that can cause vast destruction.B) To limit the destruction that natural disasters may cause.C) To gain financial support from the United Nations.D) To propose measures to hold back natural disasters.16. A) There is still a long way to go before man can control natural disasters.B) International cooperation can minimize the destructive force of natural disasters.C) Technology can help reduce the damage natural disasters may cause.D) Scientists can successfully predict earthquakes.17. A) There were fatal mistakes in its design.B) The builder didn’t observe the building codes of the time.C) The traffic load went beyond its capacity.D) It was build according to less strict earthquake-resistance standards.Passage ThreeQuestions 18 to 20 are based on the passage you have just heard.18. A) By judging to what extent they can eliminate the risks.B) By estimating the possible loss of lives and property.C) By estimating the frequency of volcanic eruptions.D) By judging the possible risks against the likely benefits.19. A) One of Etna’s recent eruptions made many people move away.B) Etna’s frequent eruptions have ruined most of the local farmland.C) Etna’s eruptions are frequent but usually mild.D) There are signs that Etna will erupt again in the near future.20. A) They will remain where they are.B) They will leave this area for ever.C) They will turn to experts for advice.D) They will seek shelter in nearby regions.Part II Reading Comprehension (35 minutes)Direction:There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B) C)and D). You should decide on the best choice and mark the corresponding letter onthe Answer Sheet with a single line through the center.Passage OneQuestions 21 to 25 are based on the following passage:When global warming finally came, it stuck with a vengeance (异乎寻常地). In some regions, temperatures rose several degrees in less than a century. Sea levels shot up nearly 400 feet, flooding coastal settlements and forcing people to migrate inland. Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia. After driving many of the animals around them to near extinction, people were forced to abandon their old way of life for a radically new survival strategy that resulted in widespread starvation and disease. The adaptation was farming: the global-warming crisis hat gave rise to it happened more than 10,000 years ago.As environmentalists convene in Rio de Janeiro this week to ponder the global climate of the future, earth scientists are in the midst of a revolution in understanding how climate has changed in the past — and how those changes have transformed human existence. Researchers have begun to piece together an illuminating picture of the powerful geological and astronomical forces that have combined to change the planet’s environment from hot to cold, wet to dry and back again over a time period stretching back hundreds of millions of years.Most important, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species. New research now suggests that climate shifts have played a key role in nearly every significant turning point in human evolution: from the dawn of primates (灵长目动物) some 65 million years ago to human ancestors rising up to walk on two legs, from the huge expansion of the human brain to the rise of agriculture. Indeed, the human history has not been merely touched by global climate change, some scientists argue, it has in some instances been driven by it.The new research has profound implications for the environmental summit in Rio. Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth. The benign (宜人的) global environment that has existed over the past 10,000 years —during which agriculture, writing, cities and most other features of civilization appeared — is a mere bright spot in a much larger pattern of widely varying climate over the ages. In fact, the pattern of climate change in the past reveals that Earth’s climate will almost certainly go through dramatic changes in the future — even without the influence of human activity.21. Farming emerged as a survival strategy because man had been obliged ______.A) to give up his former way of lifeB) to leave the coastal areasC) to follow the ever-shifting vegetationD) to abandon his original settlement22. Earth scientists have come to understand that climate ______.A) is going through a fundamental changeB) has been getting warmer for 10,000 yearsC) will eventually change from hot to coldD) has gone through periodical changes23. Scientists believe that human evolution ______.A) has seldom been accompanied by climatic changesB) has exerted little influence on climatic changesC) has largely been effected by climatic changesD) has had a major impact on climatic changes24. Evidence of past climatic changes indicates that ______.A) human activities have accelerated changes of Earth’s environmentB) Earth’s environment will remain mild despite human interferenceC) Earth’s climate is bound to change significantly in the futureD) Earth’s climate is unlikely to undergo substantial changes in the future25. The message the author wishes to convey in the passage is that ______.A) human civilization remains glorious though it is affected by climatic changesB) mankind is virtually helpless in the face of the dramatic changes of climateC) man has to limit his activities to slow down the global warming processD) human civilization will continue to develop in spite of the changes of naturePassage TwoQuestions 26 to 30 are based on the following passage:No woman can be too rich or too thin. This saying often attributed to the late Duchess (公爵夫人) of Windsor embodies much of the odd spirit of our times. Being thin is deemed as such a virtue.The problem with such a view is that some people actually attempt to live by it. I myself have fantasies of slipping into narrow designer clothes. Consequently, I have been on a diet for the better — or worse — part of my life. Being rich wouldn’t be bad either, but that won’t happen unless an unknown relative dies suddenly in some distant land, leaving me millions of dollars.Where did we go off the track? When did eating butter become a sin, and a little bit of extra flesh unappealing, if not repellent? All religions have certain days when people refrain from eating and excessive eating is one of Christianity’s seven deadly sins. However, until quite recently, most people had a problem getting enough to eat. In some religious groups, wealth was a symbol of probable salvation and high morals, and fatness a sign of wealth and well-being.Today the opposite is true. We have shifted to thinness as our new mark of virtue. The result is that being fat — or even only somewhat overweight — is bad because it implies a lack of moral strength.Our obsession (迷恋) with thinness is also fueled by health concerns. It is true that in this country we have more overweight people than ever before, and that, in many cases, being over-weight correlates with an increased risk of heart and blood vessel disease. These diseases, however, many have as much to do with our way of life and our high-fat diets as with excess weight. And the associated risk of cancer in the digestive system may be more of a dietary problem — too much fat and a lack of fiber — than a weight problem.The real concern, then, is not that we weigh too much, but that we neither exercise enough nor eat well. Exercise is necessary for strong bones and both heart and lung health. A balanced diet without a lot of fat can also help the body avoid many diseases. We should surely stop paying so much attention to weight. Simply being thin is not enough. It is actually hazardous if those who get (or already are) thin think they are automatically healthy and thus free form paying attention to their overall life-style. Thinness can be pure vainglory (虚荣).26. In the eyes of the author, an odd phenomenon nowadays is that ______.A) the Duchess of Windsor is regarded as a woman of virtue.B) looking slim is a symbol of having a large fortuneC) being thin is viewed as a much desired qualityD) religious people are not necessarily virtuous27. Swept by the prevailing trend, the author ______.A) had to go on a diet for the greater part of her lifeB) could still prevent herself from going off the trackC) had to seek help from rich distant relativesD) had to wear highly fashionable clothes28. In human history, people’s views on body weight ______.A) were closely related to their religious beliefsB) changed from time to timeC) varied between the poor and the richD) led to different oral standards29. The author criticizes women’s obsession with thinness ______.A) from an economic and educational perspectiveB) from sociological and medical points of viewC) from a historical and religious standpointD) in the light of moral principles30. What’s the author’s advice to women who are absorbed in the idea of thinness?A) They should be more concerned with their overall lifestyle.B) They should be more watchful for fatal diseases.C) They should gain weight to look healthy.D) They should rid themselves of fantasies about designer clothes.Passage ThreeQuestions 31 to 35 are based on the following passage:War may be a natural expression of biological instincts and drives toward aggression in the human species. Natural impulses of anger, hostility, and territoriality (守卫地盘的天性) are expressed through acts of violence. Theses are all qualities that humans share with animals. Aggression is a kind of innate (天生的) survival mechanism, an instinct for self-preservation, that allows animals to defend themselves from threats to their existence. But, on the other hand, human violence shows evidence of being a learned behavior. In the case of human aggression, violence cannot be simply reduced to an instinct. The many expressions of human violence are always conditioned by social conventions that give shape to aggressive behavior. In human societies violence has a social function: It is a strategy for creating or destroying forms of social order. Religious traditions have taken a leading role in directing the powers of violence. We will look at the ritual and ethical (道德上的) patterns within which human violence has been directed.The violence within a society is controlled through institutions of law. The more developed a legal system becomes, the more society takes responsibility for the discovery, control, and punishment of violent acts. In most tribal societies the only means to deal with an act of violence is revenge. Each family group may have the responsibility for personally carrying out judgment and punishment upon the person who committed the offense. But in legal systems, the responsibility for revenge becomes depersonalized and diffused. The society assumes theresponsibility for protecting individuals from violence. In cases where they cannot be protected, the society is responsible for imposing punishment. In a sate controlled legal system, individuals are removed from the cycle of revenge motivated by acts of violence, and the state assumes responsibility for their protection.The other side of a state legal apparatus is a state military apparatus. While the one protects the individual from violence, the other sacrifices the individual to violence in the interests of the state. In war the state affirms its supreme power over the individuals within its own borders. War is not simply a trial by combat to settle disputes between states; it is the moment when the state makes its most powerful demands upon its people for their recommitment, allegiance, and supreme sacrifice. Times of war test a community’s deepest religious and ethical commitments.31. Human violence shows evidence of being a learned behavior in that ______.A) it threatens the existing social systemsB) it is influenced by societyC) it has roots in religious conflictsD) it is directed against institutions of law32. The function of legal systems, according to the passage, is ______.A) to control violence within a societyB) to protect the world from chaosC) to free society from the idea of revengeD) to give the government absolute power33. What does the author mean by saying “…in legal systems, the responsibility for revengebecomes depersonalized an diffused” (Lines 5-6, Para. 2)A) Legal systems greatly reduce the possibilities of physical violence.B) Offenses against individuals are no longer judged on a personal basis.C) Victims of violence find it more difficult to take revenge.D) Punishment is not carried out directly by the individuals involved.34. The word “allegiance” (Line 5, Para. 3) is closest in meaning to ______.A) loyaltyB) objectiveC) survivalD) motive35. What can we learn from the last paragraph?A) Governments tend to abuse their supreme power in times of war.B) In times of war governments may extend their power across national borders.C) In times of war governments impose high religious and ethical standards on their people.D) Governments may sacrifice individuals in the interests of the state in times of war.Passage FourQuestions 36 to 40 are based on the following passage:Researchers who are unfamiliar with the cultural and ethnic groups they are studying must take extra precautions to shed any biases they bring with them from their own culture. For example, they must make sure they construct measures that are meaningful for each of the culturalor ethnic minority groups being studied.In conducting research on cultural and ethnic minority issues, investigators distinguish between the emic approach and the etic approach. In the emic approach, the goal is to describe behavior in one culture or ethnic group in terms that are meaningful and important to the people in that culture or ethnic group, without regard to other cultures or ethnic groups. In the etic approach, the goal is to describe behavior so that generalizations can be made across cultures. If researchers construct a questionnaire in an emic fashion, their concern is only that the questions are meaningful to the particular culture or ethnic group being studied. If, however, the researchers construct a questionnaire in an etic fashion, they want to include questions that reflect concepts familiar to all cultures involved.How might the emic and etic approaches be reflected in the study of family processes? In the emic approach, the researchers might choose to focus only on middle-class White families, without regard for whether the information obtained in the study can be generalized or is appropriate for ethnic minority groups. In a subsequent study, the researchers may decide to adopt an etic approach by studying not only middle-class White families, but also lower-income White families, Black American families, Spanish American families, and Asian American families. In studying ethnic minority families, the researchers would likely discover that the extended family is more frequently a support system in ethnic minority families than in White American families. If so, the emic approach would reveal a different pattern of family interaction than would the etic approach, documenting that research with middle-class White families cannot always be generalized to all ethnic groups.36. According to the first paragraph, researchers unfamiliar with the target cultures are inclined to______.A) be overcautious in constructing meaningful measuresB) view them from their own cultural perspectiveC) guard against interference from their own cultureD) accept readily what is alien to their own culture37.What does the author say about the emic approach and the etic approach?A) They have different research focuses in the study of ethnic issues.B) The former is biased while the latter is objective.C) The former concentrates on the study of culture while the latter on family issues.D) They are both heavily dependent on questionnaires in conducting surveys.38. Compared with the etic approach, the emic approach is apparently more ______.A) culturally interactiveB) culture-orientedC) culturally biasedD) culture-specific39. The etic approach is concerned with ______.A) the general characteristics of minority familiesB) culture-related concepts of individual ethnic groupsC) features shared by various cultures or ethnic groupsD) the economic conditions of different types of families40. Which of the following is true of the ethnic minority families in the U.S. according to thepassage?A) Their cultural patterns are usually more adaptable.B) Their cultural concepts are difficult to comprehend.C) They don’t interact with each other so much as White families.D) They have closer family ties than White families.Part III Vocabulary and Structure (20 minutes)Directions:There are 3.0. incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence.Then mark the corresponding letter on the Answer Sheet with a single line throughthe center.41. It was ______ that the restaurant discriminated against black customers.A) addicted B) allegedC) assaulted D) ascribed42. The medicine ______ his pain but did not cure his illness.A) activated B) alleviatedC) medicated D) deteriorated43. He is the only people who can ______ in this case, because the other witnesses were killedmysteriously.A) testify B) chargeC) accuse D) rectify44. Professor Hawking is ______ as one of the world’s greatest living physicists.A) dignified B) clarifiedC) acknowledged D) illustrated45 The financial problem of this company is further ______ by the rise in interest rates.A) increased B) strengthenedC) reinforced D) aggravated46. We shall probably never be able to ______ the exact nature of these sub-atomic particles.A) assert B) impartC) ascertain D) notify47. All the people in the stadium cheered up when they saw hundreds of colourful balloons______ slowly into the sky.A) ascending B) elevatingC) escalating D) lingering48. Many years had ______ before they returned to their original urban areas.A) floated B) elapsedC) skipped D) proceeded49. What you say now is not ______ with what you said last week.A) consistent B) persistentC) permanent D) insistent50. Military orders are ______ and cannot be disobeyed.A) defective B) conservativeC) alternative D) imperative51. Some educators try to put students of similar abilities into the same class because they believethis kind of ______ grouping is advisable.A) homogeneous B) instantaneousC) spontaneous D) anonymous52. Even sensible men do ______ things sometimes.A) abrupt B) absurdC) acute D) apt53. The commission would find itself ______ at every turn if its members couldn’t’reach anagreement.A) collided B) savagedC) crumbled D) hampered54. Grain production in the world is ______, but still millions go hungry.A) staggering B) shrinkingC) soaring D) suspending55. He developed a ______ attitude after years of frustration in his career.A) sneaking B) disgustedC) drastic D) cynical56. They believed that this was not the ______ of their campaign for equality but merely thebeginning.A) climax B) summitC) pitch D) maximum57. Several guests were waiting in the ______ for the front door to open.A) porch B) ventC) inlet D) entry58. As the mountains were covered with a ______ of cloud, we couldn’t see their tops.A) coating B) filmC) veil D) shade59. We couldn’t really afford to buy a house so we got it on hire purchase and paid monthly______.A) investments B) requirementsC) arrangements D) installments60. The magician made us think he cut the girl into pieces but it was merely an ______.A) illusion B) impressionC) image D) illumination61. A good education is an ______ you can fall back on for the rest of your life.A) asset B) ethicC) inventory D) obligation62. Giving a gift can convey a wealth of meaning about your appreciation of their ______ and theimportance you place upon the relationship.A) solidarity B) priorityC) superiority D) hospitality63. The designer has applied for a ______ for his new invention.A) tariff B) discountC) version D) patent64. The toy maker produces a ______ copy of the spaced station, exact in every detail.A) minimal B) minimumC) miniature D) minor65. An energy tax would curb ordinary air pollution, limit oil imports and cut the budget ______.A) disposition B) discrepancyC) defect D) deficit66. They have decided to ______ physical punishment in all local schools.A) put away B) break away fromC) do away with D) pass away67. Astronauts are ______ all kinds of tests before they are actually sent up in a spacecraft.A) inclined to B) subjected toC) prone to D) bound to68. Individual sports are run by over 370 independent governing bodies whose functions usuallyinclude ______ rules, holding events, selecting national teams and promoting international links.A) drawing on B) drawing inC) drawing up D) drawing down69. Up until that time, his interest had focused almost ______ on fully mastering the skills andtechniques of his craft.A) restrictively B) radicallyC) inclusively D) exclusively70. All the ceremonies at the 2000 Olympic Games had a unique Australian flavor, ______ oftheir multicultural communities.A) noticeable B) indicativeC) conspicuous D) implicitPart IV Error Correction (15 minutes)Directions:This part consists of a short passage. In this passage, there are altogether 10 mistakes, one in each numbered line. You may have to change a word, add a word or delete aword. Mark out the mistakes and put the corrections in the blanks provided. If youchange a word, cross it out and write the correct word in the corresponding blank. Ifyou add a word, put an insertion mark (∧) in the right place and write the missingword in the blank. If you delete a word, cross it out and put a slash (/) in the blank. Example:Television is rapidly becoming the literatures of our periods. 1. time/times/period Many of the arguments having used for the study of literature. 2. /___________As a school subject are valid for ∧study of television. 3. the___________A great many cities are experiencing difficulties whichare nothing new in the history of cities, except in their scale.Some cities have lost their original purpose and have not foundnew one. And any large or rich city is going to attract poor S1. __________immigrants, who flood in, filling with hopes of prosperityS2. __________ which are then often disappointing. There are backward townson the edge of Bombay or Brasilia, just as though there wereS3. __________ on the edge of seventeenth-century London or early nine-teenth-century Paris. This is new is the scale. DescriptionsS4. __________ written by eighteenth-century travelers of the poor of MexicoCity, and the enormous contrasts that was to be found there,S5. __________ are very dissimilar to descriptions of Mexico City today —theS6. __________ poor can still be numbered in millions.The whole monstrous growth rests on economic prosper-ity, but behind it lies two myths: the myth of the city as aS7. __________ promised land, that attracts immigrants from rural povertyS8. __________ and brings it flooding into city centers, and the myth of theS9. __________ country as a Garden of Eden, which, a few generations late,S10. __________ sends them flooding out again to the suburbs.Part VWriting (30 minutes) Directions: For this part, you are allowed thirty minutes to write a composition on the topic:Student Use of Computers. You should write at least 150 words, and base yourcomposition on the outline given in Chinese below:1. 上图所示为1990年、1995年、2002年某校大学生使用计算机的情况,请描述其变化;2. 请说明发生这些变化的原因(可从计算机的用途、价格或社会发展等方面加以说明);3. 你认为目前大学生在计算机使用中有什么困难或问题。

2002年英语一text 3

2002年英语一text 3

2002年英语一text 3 阅读理解文章来源:2002年全国高等教育自学考试英语(一)试题第一部分阅读理解(共20题,每题2分,共40分)阅读下面的短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。

Passage 3Change of Address NoticeWhen you move,you must give your new address to the post office.The post office will forward your mail to your new address for one year. To ensure that your mail does not get lost, please notify everyone of your change of address in advance. Some people or organizations also need to be notified of your move, such as the bank, credit cardpanies, magazine or newspaper publishers, and the phonepany.1. When you move, what must you do?A. Change your address at the bank.B. Notify the post office of your new address.C. Notify the bank of your new address.D. Change your address at the post office.2. Under what conditions will the post office forward your mail?A. When you move.B. When you get married.C. When you change your phone number.D. When you change your address.3. For how long will the post office forward your mail?A. For six months.B. For one year.C. For two years.D. For three years.4. What might get lost if you fail to notify everyone of your change of address?A. Your checkbook.B. Your mail.C. Your phone.D. Your newspaper.分析:这篇文章主要讲述了当你搬家的时候,必须向邮局提供新的位置区域。

Get清风电缆桥架国家标准 线槽国家标准

Get清风电缆桥架国家标准 线槽国家标准

2021年电缆桥架国家标准线槽国家标准2021年电缆桥架国家标准线槽国家标准电缆桥架国家标准|线槽国家标准以钢制电缆桥架工程设计标准CECS31∶2006为根底,由中国工程建设标准化协会电气工程委员会修订。

〔施行日期:2006..8.1〕〔托盘、梯架宽度〕电缆桥架宽度~允许最小板厚电缆桥架宽度≤150~ 1.0150<电缆桥架宽度≤300~ 1.2300<电缆桥架宽度≤500~500<电缆桥架宽度≤800~2.0电缆桥架宽度>800~具体内容如下:1 范围本标准规定了钢质电缆桥架的分类、要求、试验方法、检验规那么、标志、包装、运输、贮存。

2 标准性引用文件GB/T 93-1987弹簧垫圈GB/T 97.1-2002平垫圈A级GB/T 912-1989 碳素结构钢和低合金结构钢热轧薄钢板及钢带GB/T 1720-1979 漆膜附着力测定法GB/T 1743-1979 漆膜光泽度测定法GB/T 1764-1979 漆膜厚度测定法GB/T 1804-2000 一般公关未注公差的线性和角度尺寸的公差GB/T 4956-1985 磁性金属机体上非磁性复盖层厚度测量磁性方法GB/T 5117-1995 碳钢焊条GB/T 5780-1989 六角头螺栓C级GB/T 6170-1986 六角螺母A级和B级GB/T 10125-1997 人造气氛腐蚀试验盐雾试验GB/T 11253-1989 碳素结构钢和低合金结构钢冷轧薄钢板及钢带3分类1. 3.1 电缆桥架按主体结构型式不同分为槽式、托盘式、合资经营级式和组合式四种类型。

分别用代号C、P、T、ZH表示。

2. 3.2 电缆桥架按外表防护层不同分为热镀锌、电镀锌或锌合金、粉末喷涂或喷漆、镀锌后喷涂或喷漆。

3.3型号4.4根本结构参数3.5 板材厚度电缆桥架允许最小板材厚度见表2。

表2 单位为毫米电缆桥架加工成形后,断面形状应端正,无弯曲、扭曲、裂纹、边沿毛刺等缺4.7 制造要求电缆桥架的长度极限偏差a) 当长度小于、等于2000mm时,极限偏差为±2mm;b) 当长度大于2000mm时,极限偏差为±4mm。

php测试题及答案

php测试题及答案

php测试题及答案1. PHP中变量的声明方式是什么?- A. 使用`$`符号- B. 使用`%`符号- C. 使用`#`符号- D. 使用`&`符号答案: A2. 以下哪个函数用于获取当前脚本的名称?- A. `basename()`- B. `dirname()`- C. `getcwd()`- D. `__FILE__`答案: D3. 在PHP中,数组的索引从哪个数字开始?- A. 0- B. 1- C. -1- D. 2答案: A4. 以下哪个选项不是PHP的超全局数组?- A. `$_POST`- B. `$_GET`- C. `$_FILES`- D. `$_COOKIE`答案: C5. PHP中,如何将一个字符串转换为小写?- A. `strtolower()`- B. `strtoupper()`- C. `ucwords()`- D. `ucfirst()`答案: A6. 在PHP中,使用什么关键字来定义一个类? - A. `function`- B. `class`- C. `interface`- D. `trait`答案: B7. 以下哪个选项是PHP中的错误处理函数?- A. `trigger_error()`- B. `set_error_handler()`- C. `error_reporting()`- D. All of the above答案: D8. PHP中,如何获取当前时间的Unix时间戳? - A. `time()`- B. `date()`- C. `gettimeofday()`- D. `microtime()`答案: A9. 在PHP中,如何定义一个常量?- A. 使用`define()`- B. 使用`const`- C. 使用`var`- D. 使用`let`答案: A10. 以下哪个选项是PHP中用于输出内容的函数? - A. `echo`- B. `print`- C. `printf`- D. All of the above答案: D。

欢乐美语(Tuning in the USA)上册文本

欢乐美语(Tuning in the USA)上册文本
Ellen: Oh, Richard. You know your father. He may stay late at the hospital.
Richard: Ah, the life of a busy doctor.
Robbie: Go ahead. Cut the cake.
Richard: Oh, come on, Dad, We’re just glad you made it.
Philip: Of course I made it. A son only turns thirty years old once. Hey! That is a beautiful cake.
Richard: A harmonica? Thanks, Grandpa. But I don’t really know how to play the harmonica.
Grandpa: No? Well, let me show you.
INTRODUCTION TO ACT II
欢乐美语(Tuning in the USA)上册文本 ( 完 ) Tuning in the U.S.A.----Family Album U.S.A 的姊妹篇
教材特点:
1。以加强听说能力为目标,采用广播剧形式编制,寓教于乐;
2。以美国实际生活为题材,培养您运用美语交际的能力,克服TOEFL考试高分低能的特点;
Grandpa: Listen to an old-timer. It gets better and better!
Ellen: Your grandfather is right. It does get better. Look, you have an exciting photography project ahead.

get()函数用法详解

get()函数用法详解

get()函数用法详解一、概述get()函数是一种常用的编程函数,通常用于从输入流中读取数据。

在许多编程语言和库中,get()函数被广泛应用,用于从文件、网络连接、标准输入等来源读取数据。

本篇文章将详细介绍get()函数的用法,包括函数定义、参数说明、使用示例和注意事项。

二、函数定义语法:get()参数:无返回值:读取的数据(字符串、字节流等)三、参数说明get()函数没有参数,直接调用即可。

它从指定的输入流中读取数据,并将其返回。

四、使用示例以下是一个使用get()函数的简单示例:```python# 打开文件并读取内容with open('example.txt', 'r') as file:content = file.read()# 使用get()函数从字符串中读取字符char = content.get(ord('A'))print(char) # 输出:A```上述示例中,我们使用open()函数打开一个文件,并使用read()函数读取文件内容。

然后,我们使用get()函数从字符串中读取字符'A'。

需要注意的是,get()函数返回的是读取的数据,可以是字符串或字节流等类型。

五、注意事项1. get()函数通常用于从输入流中读取数据,可以处理多种数据类型,如字符串、字节流等。

2. 使用get()函数时,需要确保输入流的正确性和稳定性,避免出现错误或异常。

3. 确保在读取数据后正确关闭输入流,避免资源泄漏。

4. 对于大规模数据读取,可能需要考虑使用更高效的读取方式,如使用迭代器等。

5. 对于不同的编程语言和库,get()函数的实现和用法可能略有不同,需要参考相应文档或库的说明。

总之,get()函数是一种常用的编程函数,用于从输入流中读取数据。

通过了解其用法和注意事项,可以更好地使用该函数进行数据读取和处理。

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PART I LISTENING COMPREHENSION (15 minutes, 15 points )Section A (1 point each)1. A. A taxi driver and a passenger.B. A policeman and a driver.C. A judge and a criminal.D. A coach and an athlete.2. A. He doesn't want to be busy.B. He likes staying up late.C. He is not interested in his job.D. He doesn't have enough time to sleep.3. A. They are a waste of time.B. They don't deal with social problems.C. They can reflect people's real life.D. They attract honest listeners.4. A. It has been completed.B. It has been delayed.C. It has just started.D. It is well under way.5. A. Going to a theater.B. Going to a game.C. Listening to radio programsD. Watching TV programs.6. A. 2:30 B. 3:30 C. 4:30 D. 5:307. A. Dave is talkative to strangers.B. Dave likes having pizza parties.C. Dave is sociable and friendly.D. Dave is too absorbed in his project.8. A. Because she doesn't like the taste of it.B. Because she can't sleep well after drinking it.C. Because she has some heart trouble.D. Because she doesn't believe what the article says.9. A. It is fun with exciting activities.B. It is miserable with pressures.C. It is interesting but challenging.D. It is full of anxiety.Section B (1 point each)10. A. They know where snow will fall.B. They can estimate how much snow will fall.C. They sometimes cannot forecast snow accurately.D. They think snow is a difficult subject to study.11. A. The water particles in cold clouds.B. The tiny ice particles in the flakes.C. The dust in the center of the flakes.D. The temperature and water levels in the air.12. A. It has as much water as 2.5 centimeters of rain.B. It has as much water as 1.5 centimeters of rain.C. It has as much water as 2 centimeters of rain.D. It has as much water as 5 centimeters of rain.13. A. A new study on lying.B. The physical signals when people lie.C. How to detect a person who is lying.D. A new device to detect a liar.14. A. People change their behaviors when they lie.B. People have some special gestures when they lie.C. People's pupils have some changes when they lie.D. People have more blood around their eyes when they lie.15. A. 12 out of 20 B. 11 out of l2.C. 7 out of 10.D. 6 out of 8.PART II VOCABULARY (10 minutes, 10 points )Section A (0.5point each )16. Many women prefer to use cosmetics to enhance their beauty and make them look younger.A. revealB. underlineC. improveD. integrate17. What players and coaches fear most is the partiality on the part of referees in a game.A. justiceB. biasC. participationD. regionalism18. The sale has been on for a long time because the price is reckoned to be too high.A. consideredB. stipulatedC. raisedD. stimulated19. Smugglers try every means to lay hands on unearthed relics for their personal gains.A. set foot onB. lose their heart toC. set their mind onD. get hold of20. There must have been round about a thousand people participating in the forum.A. approximatelyB. exactlyC. less thanD. more than21. These old and shabby houses will be demolished for the construction of residential buildings.A. pulled outB. pulled inC. pulled downD. pulled up22. Readers are required to comply with the rules of the library and mind their manners.A. observeB. memorizeC. commentD. request23. Artificial intelligence deals partly with the analogy between the computer and the human brain.A. likenessB. relationC. contradictionD. difference24. It is often the case that some superficially unrelated events turn out to be linked in some aspects.A. practicallyB. wonderfullyC. beneficiallyD. seemingly25. The alleged all-powerful master of chi kong was arrested on a charge of fraud.A. so-calledB. well-knownC. esteemedD. undoubtedSection B (0.5 point each)26. It is hoped that pork can be made leaner by introducing a cow gene into the pig's genetic______.A. reservoirB. warehouseC. poolD. storehouse27. The chairman said that he was prepared to _____ the younger people in the decision making.A. put up withB. make way forC. shed light onD. take charge of28. Tom is angry at Linda because she _____ him _____ all the time.A. sets...upB. puts...downC. runs...outD. drops...in29. The ability to focus attention on important things is a _______ characteristic of intelligence.A. definingB. decliningC. defeatingD. deceiving30. Our picnic having been _____ by the thunderstorm, we had to wait in the pavilion until it cleared up.A. destroyedB. underminedC. spoiltD. contaminated31. I was disappointed to see that those people I had sort of ______were pretty ordinary.A. despisedB. resentedC. worshippedD. ridiculed32. One of the main purposes of using slang is to consolidate one's _______ with a group.A. specificationB. unificationC. notificationD. identification33. The _____ from underdeveloped countries may well increase in response to the soaring demand for high-tech professionals in developed nations.A. brain damageB. brain trustC. brain feverD. brain drain34. This matter settled, we decided to ______ to the next item on the agenda.A. succeedB. exceedC. proceedD. precede35. Listening is as important as talking. If you are a good listener, people often _____ you for being a good conversationalist.A. complementB. complimentC. compelD. complainPart Ill CLOZE TEST (10 minutes, 15 points, 1 point each)Most American magazines and newspapers reserve 60 percent of their pages for ads. The New York Times Sunday edition 36 may contain 350 pages of advertisements. Some radio stations devote 40 minutes of every hour to 37.Then there is television. According to one estimate, American youngsters sit 38 three hours of television commercials each week. By the time they graduate from high school, they will have been 39 360,000 TV ads. Televisions advertise in airports, hospital waiting rooms, and schools.Major sporting 40 are now major advertising events. Racing cars serve as high speed 41 . Some athletes receive most of their money from advertisers. One 42 basketball player earned $3.9 million by playing ball. Advertisers paid him nine times that much to 43 their products.There is no escape. Commercial ads are displayed on walls, buses, and trucks. They decorate the inside of taxis and subways---even the doors of public toilets. 44 messages call to us in supermarkets, stores, elevators--and 45 we are on hold on the telephone. In some countries so much advertising comes through the mail that many recipients proceed directly from the mailbox to the nearest wastebasket to 46 the junk mail.47 Insider's Report, published by McCann-Erickson, a global advertising agency, the estimated 48 of money spent on advertising worldwide in 1990 was $275.5 billion. Since then, the figures have 49 to $411.6 billion for 1.997 and a projected $434.4 billion for 1998. Big money!What is the effect of all of this? One analyst 50 it this way: "Advertising is one of the most powerful socializing forces in the culture. Ads sell more than products. They sell images, values, goals, concepts of who we are and who we should be. They shape our attitudes and our attitudes shape our behavior."36. A. lonely B. alone C. singly D. individually37. merce B.consumers mercials D. commodities38. A.through B.up C.in D. about39. A.taken to B.spent in C.expected of D. exposed to40. A.incidents B.affairs C.events D. programs41. A.flashes B.billboards C.attractions D. messages42. A.top-heavy B.top-talented C.top-secret D. top-ranking43. A.improve B.promote C.urge D. update44. A.Audio B.Studio C.Oral D. Video45. A.since B.while C.even D. if46. A. toss out B. lay down C. blow out D. break down47. A.It is said that B.Apart from C.According to D.Including in48. A.digit B.amount C.account D.budget49. A.raised B.elevated C.roared D.soared50. A.said B.recorded C.told D.putPART IV READING COMPREHENSION (45 minutes, 30 points, 1 point each)Passage OneFor decades, arms-control talks centered on nuclear weapons. This is hardly surprising, since a single nuclear bomb can destroy an entire city. Yet, unlike smaller arms, these immensely powerful weapons have not been used in war in over 50 years.Historian John Keegan writes: "Nuclear weapons have, since August 9, 1945, killed no one. The 50,000,000 who have died in war since that date have for the most part, been killed by cheap, mass-produced weapons and small ammunition, costing little more than the transistor radios which have flooded the world in the same period. Because small weapons have disrupted life very little in the advanced world, outside the restricted localities where drug-dealing and political terrorism flourish, the populations of the rich states have been slow to recognize the horror that this pollution has brought in its train." Why have small arms become the weapons of choice in recent wars? Part of the reason lies in the relationship between conflict and poverty. Most of the wars fought during the 1990s took place in countries that are poor--too poor to buy sophisticated weapon systems. Small arms and light weapons are a bargain. For example, 50 million dollars, which is approximately the cost of a single modem jet fighter, can equip an army with 200,000 assault rifles.Another reason why small weapons are so popular is that they are lethal. A single rapid-fire assault rifle can fire hundreds of rounds a minute. They are also easy to use and maintain. A child often can be taught to strip and reassemble a typical assault rifle. A child can also quickly learn to aim and fire that rifle into a crowd of people.The global traffic in guns is complex. The illegal trade of small arms is big. In some African wars, paramilitary groups have bought billions of dollars' worth of small arms and light weapons, not with money, but with diamonds seized from diamond-mining areas.Weapons are also linked to the illegal trade in drugs. !t is not unusual for criminal organizations to use the same routes to smuggle drugs in one direction and to smuggle guns in the other.51. It is implied in the passage that__________.A. small arms-control is more important than nuclear arms-controlB. the nuclear arms-control talks can never reach an agreementC. the power of nuclear weapons to kill people has been diminishedD. nuclear weapons were the topic of arms-control talks 50 years ago52. The advanced world neglect the problems of small arms because __________.A. They have to deal with drug-dealing and political terrorismB. They have no such problems as are caused by small weaponsC. They have not recognized the seriousness of the problems in timeD. They face other more important problems such as pollution53. Which of the following is NOT mentioned as the reason for the prevalence of small arms?A. Small arms are cheap.B. Small arms are powerful.C. Small arms are easier to use.D. Small arms are easier to get.54. We can conclude from the passage that____________.A. small arms are not expensive in the black-marketB. it is unfair to exchange small arms for diamondC. criminals use the same passage to smuggle drugs and small armsD. where there are drugs, there are small arms55. The best title for this passage is___________.A. Small Arms Talks, Not Nuclear Arms TalksB. Neglect of Small Arms ControlC. Global Traffic in Small ArmsD. Small Arms, Big ProblemsPassage TwoIn order to combat sickness, many doctors rely heavily on prescribing medicines that are developed and aggressively advertised by pharmaceutical companies. Significantly, the world market for such drugs has skyrocketed in recent decades, from just a few billion dollars a year to hundreds of billions of dollars annually. What has been a consequence?Medically prescribed drugs have helped many people. Yet, the health of some who take drugs has either remained unchanged or become worse. So, recently some have turned to using other methods of medical treatment.In places where modem, conventional medicine has been the standard of care, many are now turning to what have been called alternative, or complementary, therapies. "The Berlin Wall that has long divided alternative therapies from mainstream medicine appears to be crumbling," said Consumer Reports of May 2000.The Journal of the American Medical Association (JAMA) observed, "Alternative medical therapies such as the use of herbs, functionally defined as interventions neither taught widely in medical schools nor generally available in US hospitals, have attracted increased national attention from the media, the medical community, governmental agencies, and the public." In the past, conventional medical practitioners have been skeptical about alternative medical practices, but 75 medical schools in the United States currently offer elective course work on alternative medicine, including Harvard, Stanford, University of Arizona, and Yale.JAMA noted, "Now an estimated 3 in 5 individuals seeing a medical doctor for a principal condition also used an alternative therapy. And outside the United States, alternative medicine is popular throughout the industrialized world."The trend toward integrating alternative therapies with conventional ones has long been a general practice in many countries. As JAMA concluded, "There are no longer two types of medicine, conventional and complementary. There is only good medicine and bad medicine."56. This passage suggests that pharmaceutical companies________________.A. pay doctors for prescribing their drugsB. have raised the prices of their products sharply in recent yearsC. spend more money on their advertisements than on their productsD. have produced some ineffective drugs57. The sentence" The Berlin Wall ...appears to be crumbling" in the third paragraph implies that______.A. the restrictions on the practice of alternative therapies will be abolishedB. there are still strict restrictions on the practice of alternative drugsC. conventional medicine and alternative therapies are incomparableD. conventional medicine and alternative therapies are completely different remedies58. According to the passage, alternative therapies __________.A. are widely taught in the US medical schools nowB. have been approved by US governmentC. have been used by many American patientsD. are as popular as conventional medicine59. JAMA seems to suggest that _____________.A. US government should meet the increasing demands for alternative therapiesB. a medicine is good after it proves to be beneficial to the patientsC. pharmaceutical companies should cover the cost of alternative therapiesD. conventional medicine and alternative medicine should join hands60. It is implied in the passage that ___________.A. we should take as little western medicine as possibleB. the prices of the prescribed medicine should be reducedC. herbal medicine will be accepted by more AmericansD. without the help of alternative medicine, good health can not be guaranteedPassage ThreeOur Milky Way galaxy could contain up to 1 billion Earth-like planets capable of supporting life, scientists announced last week.The theoretical abundance of habitable worlds among the estimated 200 billion stars of our home galaxy suggests that more powerful telescopes might glimpse the faint signature of far-off planet, proving that, in size and temperature at least, we are not alone in the universe.Solar systems such as Earth's, in which planets orbit a star, have been discovered. Astronomers have identified almost 100 planets in orbit around other suns. All are enormous, and of the same gaseous make-up as Jupiter.Barrie Jones of the Open University in UK and his colleague Nick Sleep have worked out how to predict which of the newly discovered solar systems is likely to harbor Earth-like planets.Using a computer, they have created mathematical models of planetary systems and seeded them with hypothetical Earths in "Goldilocks zone" orbits, where it is neither too hot nor too cold to support life.The computer simulates which of these model Earths is likely to be kicked out of its temperate orbit by gravitational effects of the monster planets, and which is likely to survive.The solar system most like ours discovered so far is 51 light years away, at the star 47 Ursae Majoris, near the group of stars known as the Great Bear.Astronomers have discovered two planets orbiting 47 Ursae Majoris--one is two and half times the size of Jupiter, the other slightly smaller. Both planets are relatively close to the Goldilocks zone, which is further out than ours because 47 Ursae Majoris is older, hotter and brighter than the sun."It's certainly a system worth exploring for an Earth-like planet and for life," said Jones. The requirement for a life-supporting zone in any solar system is that water should be able to exist in a liquid state.NASA and its European counterpart, ESA, plan to launch instruments in the next 10 years which could produce pictures of Earth-sized planets.61. It is suggested in this passage that _____________.A. scientists have found evidence to prove there are many Earth-like planets in our galaxyB. theoretically there are a great number of Earth-like planets capable of supporting lifeC. our Earth is the only planet in our galaxy that can support lifeD. with more powerful telescopes, scientists will be able to find more galaxies in the universe62. The "Goldilocks zone" mentioned in the 5th paragraph most probably means _____________.A. a certain fixed distance between a planet and sunB. a range in the universe in which the planets' temperature is suitable for lifeC. a range in the universe in which the planets can receive enough sunlightD. a mathematical model to measure the size of the planetary system63. Barrie Jones and Nick Sleep have found_____________.A. 100 planets orbiting around other stars like our sunB. many planets' atmosphere has the same composition as JupiterC .the ways to tell which solar system may have Earth-like planetsD. a mathematical model to measure the distance of newly found solar-systems64. So far, the solar system most like ours that has been discovered is_____________.A. in the group of stars known as Great BearB. 2.5 times as big as JupiterC. smaller than our systemD. impossible for us to reach at present time.65. The most important requirement to have a life-supporting zone in any solar system is that it must have ___.A. enough water and proper temperatureB. enough oxygen and hydrogenC. enough air and sunlightD. enough water in any statePassage FourHaving abandoned his call for higher gasoline prices, Vice President AI Gore has another idea to get people out of their cars: Spend billions on mass transitm$25 billion to be exact. Last week, Gore unveiled his "Keep America Moving" initiative, which will spend $25 billion on upgrading and improving mass-transit systems nationwide. According to Gore's self-proclaimed "new way of thinking" all that's necessary to reduce traffic congestion is to "give people a choice."The federal government has been trying to "give people a choice" for decades to little effect. Portions of the federal gasoline tax have already been used to support urban bus and rail systems. Despite years of subsidies, few urban-transit systems run in the black. They don't do much to reduce congestion either. No matter how much the taxpayers paid for the planned transit systems, Americans prefer the autonomy offered by their automobiles.The vice president praised the Portland light-rail system as an example of how good mass transit can be. Yet Portland's experience is more ~ than exemplary, model. Research by the Cascade Policy Institute demonstrates that Portland's Metro has been a multi-million-dollar mistake. According to Metro's own figures, the light-rail system is doing little to reducecongestion, as most of its riders used to ride the bus. Those riders that do come off the roads, come at an incredible price: $62 per round trip. Road improvements and expansion would do far more to reduce congestion at a fraction of the cost, but they wouldn't attract the same volume of federal funds.66. According to the author, the mass-transit systems ___________.A. are characterized by low consumption of gasolineB. have contributed little to the improvement of the trafficC. aim at monitoring the public trafficD. are financially profitable67. What does the author say about the federal government?A. It has recently begun to address the problem of traffic congestion.B. It fails to provide enough funds to help reduce traffic congestion.C. Its attempt to reduce traffic congestion is successful but costly.D. It has not done much to reduce congestion by improving roads.68. What is said about Americans' attitude toward the transit systems?A. They are reluctant to pay taxes to support the transit systems.B. They think driving their own cars is more convenient.C. They prefer the policies of improving and expanding roads.D. They think there should be more choices in transportation.69. In the third paragraph, the underlined expression "cautionary tale" most probably means _______.A. an incredible storyB. an untrue storyC. a story giving a warningD. a story teaching a moral lesson70. Which of the following statements would the author probably agree to?A. In spite of federal funds, most urban-transit systems have financial problems.B. The American public should become more aware of the need to reduce traffic congestion.C. The attempt to expand roads would be as costly as the one to build a light-rail system.D. The federal gasoline tax should be raised to support urban-transit system.Passage FiveIn all of the industrial countries and many less developed countries, a debate along the lines of government vs. business prevails. This struggle has gone on for so long, and is so pervasive, that many who participate in it have come to think of these two social institutions as natural and permanent enemies, each striving to oppose the other.Viewing the struggle in that format diminishes the chance of attaining more harmonious relations between government and business. Moreover, if these two are seen as natural and deadly enemies, then business has no long-range future. It is self-evident that government, as the only social instrument that can legally enforce its will by physical control, must win any struggle that is reduced to naked power.A more realistic, and most constructive, approach to the conflict between business and government starts by noticing the many ways in which they are dependent on each other. Business cannot exist without social order. Business can and does generate its own order, its own regularities of procedure and behavior; but at bottom these rest upon more fundamental patterns of order which can be maintained and evolved by the political state.The dependence of government on business is less absolute. Governments can absorb direct responsibility for organizing economic functions. In many cases, ancient and modern, government-run economic activities seem to have operated at a level of efficiency not markedly inferior to comparable work organized by business. If society's sole purpose is to achieve a bare survival for its members, there can be no substantial objection to governmental absorption of economic arrangements.71. Many people think government and business arc "enemies" because __________.A. the struggle between the two panics has always existedB. they based their belief on the experience of the industrial countriesC. they believe that government can do better than business in economic activitiesD. the struggle between the two parties is so fierce that neither will survive in the end72. The third paragraph mainly discusses _______________.A. how government and business depend on each otherB. why social order is important to business activitiesC. why it is necessary for business to rely on governmentD. how business can develop and maintain order73. What does the passage say about economic activities organized by government?A. They mostly aim at helping people to survive.B. They can be conducted as well as those by business.C. They are the ones that business cannot do well.D. They are comparatively modern phenomena.74. We can conclude from the passage that ___________.A. it is difficult for government and business to have good relationsB. it is difficult to study the relations between government and businessC. government should dominate economic activitiesD. government and business should not oppose each otherPassage SixStanding up for what you believe in can be tough. Sometimes it's got to be done, but the price can be high.Biochemist Jeffrey Wigand found this out the hard way when he took on his former employer, tobacco giant Brown & Williamson, over its claim that cigarettes were not addictive. So too did climate modeler Ben Santer when he put his name to a UN report which argued that it is people who are warming the planet. Both men found themselves under sustained attacks, Wigand from Brown & Williamson, Santer from the combined might of the oil and car industries.The two men got into their dreadful predicaments by totally different routes. But they had one thing in common--they fought powerful vested interests (既得利益者 ) with scientific data that those interests wished would go away.Commercial companies are not, of course, the only vested interests in town. Governments have a habit of backing the ideas of whoever pays the most tax. Academia also has its version: scientific theories often come with fragile egos and reputations still attached, and supporters of those theories can be overly resistant to new ideas.For example, Alfred Wegener's idea that the continents drift across the surface of the planet was laughed at when he proposed it in 1915. This idea was only accepted finally in the 1960s, when plate tectonics came of age. More recently, in 1982, Stanley Prusiner was labeled crazy for his controversial suggestion that infectious diseases such as BSE (疯牛病) were caused by a protein that self-replicated. A decade later, the notion had gained ground. Finally, in 1997, he received a Nobel Prize for his idea.Western science has always thrived on individualism--one person's ambition to topple a theory. So independence of thought is crucial. But this applies not only for scientists, but also their institutions.With governments and commercial sponsors increasingly pulling the strings of university research--perhaps it's time to spend some lottery money, say, on truly independent research. Overcoming scientists' inertia will be much more difficult.Yet we cannot afford to be slow to hear new ideas and adapt to them. Back in the 1950s, if governments had taken seriously the findings of epidemiologist Richard Doll about the link between smoking and lung cancer, millions of people would have been spared disability and premature death.75. One of the ideas that are highlighted in the passage is that ______________.A. individuals have greater chance of success in scientific research than collectivesB. personality plays a crucial role in the advances of scienceC. originality of thinking is the key to the advances of scienceD. the intelligence of scientists is of vital importance to scientific achievements76. Jeffrey Wigand's idea about the nature of cigarette _________.A. was similar to that of the tobacco companyB. sounded ridiculous to the general pubicC. was reached purely out of personal interestsD. should be regarded as scientifically true77. Jeffrey Wigand was attacked by the tobacco giant because ____________.A. his idea could lead to a financial loss for the companyB. he had been eager to defeat his companyC. his idea was scientifically invalidD. he had long been an enemy of the company78. The underlined phrase "plate tectonics" in the 5th paragraph probably refers to ____________.A. the Study of the structure of the earthB. scientific study of the climate of the earthC. the theory that the earth's surface consists of plates in constant motionD. the theory that the earth's surface was originally a plate-shaped heavenly body79. One of the conclusions that we can reach from this passage is that _____________.A. governmental interests always seem to clash with those of the private companiesB. scientific findings are often obtained at the sacrifice of personal interestsC. scientific truths are often rejected before they are widely acceptedD. scientists are sometimes doubtful about their beliefs。

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