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卷材铺贴时，上下卷材不得相互垂直铺贴。
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设S(x):x是三好学生,a:张三,b:李四,命题“张三是三好学生而李四不是”符号化为()
Passage OneQuestions 26to 30are based on the following passage.Libraries are my world. I've been a patron (老主顾) all my life, and for the past nine years I've worked at multiple libraries and archives in and around Detroit. The library as an institution has many roles, but as our country struggles through an economic crisis, I have watched the library where I work evolve into a career and business center, a community gathering place and a bastion (堡垒) of hope.In the spring of 2007 1 got a library internship (实习生的位置) at the Southfield Public Library (SPL), just north of Detroit. Summers at SPL were usually slow, but that year, we experienced a library that was as busy as science-fair project week, midterms or tax season. Yet patrons weren't looking for Mosby's Nursing Drug Reference or tax return forms. They were coming for information on growing their small business.I interpreted people's interest in our business collection as the first step to pursuing their dreams, but these patrons were not motivated by dreams. They were responding to reality, and they were looking for Plan B.Things worsened in 2008, and in 2009 the economic crisis continues to plague Michigan. Last year, we put up a display with a variety of job resources that we restocked every hour. Each night the library closed, the display was bare. While we normally keep displays up for a week, we kept the job resources display up for months.Then there's the tightening credit market. People see the writing on the wall and they want to get educated. They can't afford a financial adviser, but checking books out is free. Some of the most popular titles now are Rich Dad, Poor Dad. Think and Grow Rich, and Suze Orman's 2009 Action Plan.The economic downturn affects us all. I have had to work long hours and don't get to see much of my boyfriend or experience any kind of social life lately, but I am thankful to be in a position where I can help people overcome this struggle. In Michigan, we haven't lost hope. As long as there are libraries here, there will always be hope.26. What changes has the current economic crisis brought to the library?A) It has opened its age-old archives to the general public.B) It has become a job and business information center.C) It has evolved into a place for business transactions.D) It has had to cut its budget to get through the crisis.27. What does the author say about the Southfield Public Library in the summer of 2007?A) It was overflowing with visitors.B) It launched a science project series.C) It added many books on business to its collection.D) It was full of people seeking information on drugs.28. What can be inferred from people's strong interest in the library's business collection?A) They think it is now time to realize their dreams.B) They find economics helpful in tiding over the crisis.C) They consider it a trend to start their own business.D) They are concerned about the worsening economy.29. Why were there no more job resources on display by the end of the day?A) The library staff could not do the restocking quickly enough.B) People competed with each other for the jobs listed in the ads.C) People were much interested in the job resources on display.D) All the materials on display were free of charge to the jobless.30. How did the author feel about working in the library?A) She felt contented to be in a position to render help.B) She felt pleased to be able to give hope to the jobless.C) She felt rewarded to have gained a lot of experience.D) She felt sorry to miss the social lifeshe used to enjoy..Passage TwoQuestions 31to 35are based on the following passage.More than three dozen billionaires, including well-known philanthropist (慈善家) David Rockefeller, have promised at least half of their fortunes to charity, joining a programme that Bill and Melinda Gates and Warren Buffett started in June to encourage other wealthy people to give.The pledge is currently worth about $ 150 billion, but the programme predicts it will eventually be worth $ 600 billion."During even the Depression's worst years, my parents gave money - about 8% of their annual income of $ 2200," said Lorry Lokey, one of the donors, on the website of the programme, the Giving Pledge, "I remember saying to my mother that we can't afford that. But she said we have to share with others."The pledge has been a matter of some debate in philanthropic and non-profit circles, with some experts dismissing it as mere publicity and others predicting that it would produce a flood of new money to support non-profit groups.Buffett said the real value of the pledge was found in the example it set and in the sentiments (情感) expressed in the letters posted on the website.Buffett and Gates will hold several dinners later this year to recruit more billionaires, and members of the Giving Pledge will meet annually to discuss their philanthropy.The pair are due to meet some wealthiest people in China next month and India in March."We hope this catches fire in some other countries," Buffett said, "If they want to take what we think is a good idea and run with it, we will be cheering."Buffett said the number of people who had agreed to sign on was at the high end of his expectations. He said some people who declined to sign the pledge were planning to give away most of their wealth but did not want to draw attention to those plans.Energy tycoon (大亨) Pickens, who is worth about $ 1 billion, said in his Giving Pledge letter: "I've long stated that I enjoy making money, and I enjoy giving it away. I'm not a big fan of inherited wealth. It generally does more harm than good."31. What's the purpose of the programme started by Bill and Melinda Gates and Warren Buffett?A) To spread the idea of charity around the world.B) To publicise the pains and gains of charity work.C) To involve more wealthy people in philanthropy.D) To narrow the gap between the rich and the poor.32. What message does Lorry Lokey intend to convey through his website posting?A) His family's income is far from large.B) The spirit of giving runs in his family.C) His family suffered during the Great Depression.D) The wealth of his family has come the hard way.33. Why are Buffett and Gates going to meet some wealthiest people in China and India?A) To share their experience with the newly rich there.B) To publicise their generosity in helping the needy.C) To persuade the wealthy people there to join their ranks.D) To help the billionaires there see the true value of money.34. What reason do some people give for declining to sign the pledge?A) They are unsure if they can meet the public's expectations.B) They have made plans for disposing of their wealth.C) They are still undecided whether to give or not.D) They are reluctant to be the focus of attention.35. What does energy tycoon Pickens try to say in his Giving Pledge letter?A) Blessed are those who inherit large fortunes.B) The more you give, the happier you will be.C) Leaving a fortune to one's children is unwise.D) Philanthropy can help freethe poor from man.Passage ThreeQuestions36 to 40 are based on the following passage.Academy Award nominees who go home empty-handed may not have a shiny Oscar to show off, but they may turn out to be the bigger winners in the game of life. According to a study published in British Medical Journal, Oscar-winning screenwriters are more successful, more productive, and more respected than losing nominees; however, they die sooner by about four years."Because success is usually linked to better health, this is the first occupation whose success is not associated with improved longevity," says Donald Redelmeier, lead author of the study. Researchers tracked down information about every person who was ever nominated for an Oscar since the awards were first handed out decades of years ago.To explain the puzzling findings, he offers two theories. The first is the "work-to-death hypothesis". According to Redelmeier, screenwriters are more apt to lead unhealthy lifestyles, meaning they smoke more, exercise less, and work a lot of late-night hours, which translates into not enough sleep.Screenwriters don't have a boss to report to, which brings into account Redelmeier's second explanation, the "party-heavy hypothesis". "When you become a successful screenwriter, you gain status without daily accountability, and as a consequence your success may lead you to more alcohol, more parties, and more obesity," he says.36. The example given in the first paragraph implies that the losing oscar nominees may ______.A) live longer than Oscar winnersB) make greater success in their careersC) have happier familiesD) work harder than Oscar winners37. According to the passage, it is ______ that ruins the Oscar winners' health.A) successB) hard workC) unhappy family lifeD) worry about the future38. According to the "work-to-death hypothesis", Oscar-winning screenwriters ______.A) just dwell on their fameB) don't work very hardC) develop some bad habitsD) become workaholics39. In the "party-heavy hypothesis", "heavy" refers to ______.A) heavy load on the mindB) heavy piles of writingsC) too oily foodD) becoming overweight40. Which of the following statements is NOT true?A) Oscar-winning screenwriters are more famous than the losers.B) Success will always lead to better health and better life.C) Researchers made a survey on all Oscar nominated screenwriters.D) Oscar is harmful to its winners' health.Passage FourQuestions41 to 45 are based on the following passage.Someday a stranger will read your e-mail without your permission or scan the Website you've visited，Or perhaps someone will casually glance through your credit card purchases or cell phonebills to find out your shopping preferences or calling habits.In fact, it's likely some of these things have already happened to you. Who would watch you without your permission? It might be a spouse, a girl friend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen - the 21st century equivalent of being caught naked.Psychologists tell us boundaries are healthy, that it's important to reveal yourself to friends, family and lovers in stages, at appropriate times. But few boundaries remain. The digital bread crumbs(碎屑) you leave everywhere make it easy for strangers to reconstruct who you are, where you are and what you like. In some cases, a simple Google search can reveal what you think. Like it or not, increasingly we live in a world where you simply cannot keep a secret.The key question is: Does that matter?For many Americans, the answer apparently is "no."When opinion polls ask Americans about privacy, most say they are concerned about losing it. A survey found an overwhelming pessimism about privacy, with 60 percent of respondents saying they feel their privacy is "slipping away, and that bothers me."But people say one thing and do another. Only a tiny fraction of Americans change any behaviors in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收费站) to avoid using the EZ-Pass system that can track automobile movements. And few turn down supermarket loyalty cards. Privacy economist A lessandro Acauisti has run a series of tests that reveal people will surrender personal information like Socail Security numbers just to get their hands on a pitiful 50-cents-off coupon(优惠卷)。But privacy does matter - at least sometimes. It's like health: When you have it, you don't notice it. Only when it's gone do you wish you'd done more to protect it.41. What does the author mean by saying "the 21st century equivalent of being caught naked" (Lines 3-4,Para.2)?A) People's personal information is easily accessed without their knowledge.B) In the 21st century people try every means to look into others' secrets.C) People tend to be more frank with each other in the information age.D) Criminals are easily caught on the spot with advanced technology.42. What would psychologists advise on the relationships between friends?A) Friends should open their hearts to each other.B) Friends should always be faithful to each other.C) There should be a distance even between friends.D) There should be fewer disputes between friends.43. Why does the author say "we live in a world where you simply cannot keep a secret" (Line5,para.3)A) Modern society has finally evolved into an open society.B) People leave traces around when using modern technology.C) There are always people who are curious about others' affairs.D) Many search engines profit by revealing people's identities.44. What do most Americans do with regard to privacy protection?A) They change behaviors that might disclose their identity.B) They use various loyalty cards for business transactions.C) They rely most and more on electronic devices.D) They talk a lot but hardly do anything about it.45. According to the passage, privacy is like health in that ___.A) people will make every effort to keep it.B) its importance is rarely understoodC) it is something that can easily be lostD) people don't cherish it until they lose it
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