2015.4.12第6周每日一题及答案
2015年6月四级真题及答案解析（三套全）
2015年6⽉四级真题及答案解析（三套全）2015年6⽉四级第⼀套Part II Listening ComprehensionSection A1. A) He is pleased to sit on the committee. B) He is willing to offer the woman a hand.C) He will tell the woman his decision later. D) He would like to become a club member.2. A) Their planned trip to V ancouver is obviously overpriced.B) They should borrow a guide book instead of buying one.C) The guide books in the library have the latest information.D) The library can help order guide books about Vancouver.3. A) He regrets having taken the history course.B) He finds little interest in the history books.C) He has trouble finishing his reading assignments.D) He has difficulty writing the weekly book report.4. A) The man had better choose another restaurant.B) The new restaurant is a perfect place for dating.C) The new restaurant caught her fancy immediately.D) The man has good taste in choosing the restaurant.5. A) He has been looking forward to spring. B) He has been waiting for the winter sale.C) He wi ll clean the woman’s boots for spring. D) He will help the woman put things away.6. A) At a tailor’s B) At Bob’s home.C) In a clothes store. D) In a theatre.7. A) His guests favor Tibetan drinks. B) His water is quite extraordinary.C) Mineral water is good for health. D) Plain water will serve the purpose.8. A) Report the result of a discussion. B) Raise some environmental issues.C) Submit an important document. D) Revise an environmental report.Questions 9 to 12 are based on the conversation you have just heard.9. A) They pollute the soil used to cover them. B) They are harmful to nearby neighborhoods.C) The rubbish in them takes long to dissolve. D) The gas they emit is extremely poisonous.10. A) Growing population. B) Packaging materials.C) Changed eating habits. D) Lower production cost.11. A) By saving energy. B) By using less aluminum.C) By reducing poisonous wastes. D) By making the most of materials.12.A) We are running out of natural resources soon.B) Only combined efforts can make a difference.C) The waste problem will eventually hurt all of us.D) All of us can actually benefit from recycling.Questions 13 to 15 are based on the conversation you have just heard.13. A) Miami. B) Vancouver. C) Bellingham. D) Boston.14. A) To get information on one-way tickets to Canada.B) To inquire about the price of “Super Saver” seats.C) To get advice on how to fly as cheaply as possible.D) To inquire about the shortest route to drive home.15. A) Join a tourist group. B) Choose a major airline.C) Avoid trips in public holidays. D) Book tickets as early as possible.Section BPassage OneQuestions 16 to 18 are based on the passage you have just heard.16. A) There are mysterious stories behind his works.B) There are many misunderstandings about him.C) His works have no match worldwide.D) His personal history is little known.17. A) He moved to Stratford-on-Avon in his childhood.B) He failed to go beyond grammar school.C) He was a member of the town council.D) He once worked in a well-known acting company.18. A) Writers of his time had no means to protect their works.B) Possible sources of clues about him were lost in a fire.C) His works were adapted beyond recognition.D) People of his time had little interest in him.Passage TwoQuestions 19 to 21 are based on the passage you have just heard.19. A) It shows you have been ignoring you health.B) It can seriously affect your thinking process.C) It is an early warning of some illness.D) It is a symptom of too much pressure.20. A) Reduce our workload. B) Control our temper.C) Use painkillers for relief. D) Avoid masking symptoms.21. A) Lying down and having some sleep. B) Rubbing and pressing one’s back.C) Going out for a walk. D) Listening to light music.Passage ThreeQuestions 22 to 25 are based on the passage you have just heard.22. A) Depending heavily on loans. B) Having no budget plans at all.C) Spending beyond one’s means.D) Leaving no room for large bills.23. A) Many of them can be cut. B) Alt of them have to be covered.C) Their payment cannot be delayed. D) The eat up most of the family income.24. A) Rent a house instead of buying one. B) Discuss the problem in the family.C) Make a conservation plan. D) Move to a cheaper place.25. A) Financial issues plaguing a family. B) Difficulty in making both ends meet.C) Family budget problems and solutions. D) New ways to boost family income.Section CPerhaps because going to college is so much a part of the American dream, many people gofor no(26)_____reason. Some go because their parents expect it, others because it’s what their friends are doing. Then, there’s the belief that a college degree will(27)____ensure a good job and high pay.Some students (28)____ through for years ,attending classes, or skipping(逃课) them as the case may be, reading only what can’t be avoided, looking for less(29)_____courses, and never being touched or changed in any important way. For a few of these people, college provides no (30)____, yet because of parental or peer pressure, they cannot voluntarily leave. They stop trying in the hope that their teachers will make the decision for them by (31)____ them.To put it bluntly(直截了当地)，unless you’re willing to make your college years count, you might be (32)_____ doing something else. Not everyone should attend college, nor should everyone who does attend begin right after high school. Many college students (33)_____ taking a year or so off. A year out in the world helps some people to (34)_____their priorities and goals. If you’re really going to get something out of going to college, you have to make it mean something, and to do that you must have some idea why you’re there, what you hope to get out of it, and (35)_____even what you hope to become.Part III Reading ComprehensionSection AQuestions 36 to 45 are based on the following passage.It’s our guilty pleasure: Watching TV is the most common eve ryday activity, after work and sleep, in many parts of the world. Americans view five hours of TV each day, and while we know that spending so much time sitting 36 can lead to obesity(肥胖症) and other diseases, researchers have now quantified just how 37 being a couch potato can be.In an analysis of data from eight large 38 published studies, a Harvard-led group reported in the Journal of the American Medical Association that for every two hours per day spent channel 39 , the risk of developing Type 2 diabetes (糖尿病) rose 20% over 8.5 years, the risk of heart disease increased 15% over a 40 , and the odds of dying prematurely 41 13% during a seven-year follow-up. All of these 42 are linked to a lack of physical exercise. But compared with other sedentary(久坐的) activities, like knitting, viewing TV may be especially 43 at promoting unhealthy habits. For one, the sheer number of hours we pass watching TV dwarfs the time we spend on anything else. And other studies have found that watching ads for beer and popcorn may make you more likely to 44 them.Even so, the authors admit that they didn’t compare different sedentary activities to45 whether TV watching was linked to a greater risk of diabetes, heart disease or early deathSection BEssay-Grading Software Offers Professors a Break[A] Imagine taking a college exam, and, instead of handing in a blue book and getting a gradefrom a professor a few weeks later, clicking the “send” button when you are clone and receiving a grade back instantly, your essay scored by a software program. And then, instead of being clone with that exam, imagine that the system would immediately let you rewrite the test to try to improve your grade.[B] EdX, the nonprofit enterprise founded by Harvard and the Massachusetts Institute ofTechnology (MIT) to offer courses on the Internet, has just introduced such a system and will make its automated (⾃动的) software available free on the Web to any institution that wants to use it. The software uses artificial intelligence to grade student essays and short written answers, fleeing professors for other tasks.[C] The new service will bring the educational consortium (联盟) into a growing conflict over therole of automation in education. Although automated grading systems for multiple-choice and true-false tests are now widespread, the use of artificial intelligence technology to grade essay answers has not yet received widespread acceptance by educators and has many critics. [D] Anant Agarwal, an electrical engineer who is president of EdX, predicted that the instant-grading software would be a useful teaching tool, enabling students to take tests and write essays over and over and improve the quality of their answers. He said the technology would offer distinct advantages over the traditional classroom system, where students often wait days or weeks for grades. “There is a huge value in learning with instant feedback,” Dr. Agarwal said. “Students are telling us they learn much better with instant feedback.”[E] But skeptics (怀疑者) say the automated system is no match for live teachers. One longtimecritic, Les Perelman, has drawn national attention several times for putting together nonsense essays that have fooled software grading programs into giving high marks. He has also been highly critical of studies claiming that the software compares well to human graders.[F] He is among a group of educators who last month began circulating a petition (呼吁) opposingautomated assessment software. The group, which calls itself Professionals Against Machine Scoring of Student Essays in High-Stakes Assessment, has collected nearly 2,000 signatures, including some from famous people like Noam Chomsky.[G] “Let’s face the realities of automatic essay scoring,” the group’s statement reads in p art.“Computers cannot ‘read.’ They cannot measure the essentials of effective written communication: accuracy, reasoning, adequacy of evidence, good sense, ethical(伦理的) position, convincing argument, meaningful organization, and clarity, among others.”[H] But EdX expects its software to be adopted widely by schools and universities. It offers freeonline classes from Harvard, MIT and the University of California-Berkeley; this fall, it will add classes from Wellesley, Georgetown and the University of Texas. In all, 12 universities participate in EdX, which offers certificates for course completion and has said that it plans to continue to expand next year, including adding international schools.[I] The EdX assessment tool requires human teachers, or graders, to first grade 100 essays or essayquestions. The system then uses a variety of machine-learning techniques to train itself to be able to grade any number of essays or answers automatically and almost instantly. The software will assign a grade depending on the scoring system created by the teacher, whether it is a letter grade or numerical (数字的) rank.[J] EdX is not the first to use the automated assessment technology, which dates to early computers in the 1960s. There is now a range of companies offering commercial programs to grade written test answers, and four states—Louisiana, North Dakota, Utah and West Virginia—are using some form of the technology in secondary schools. A fifth, Indiana, has experimented with it. In some cases the software is used as a “second reader,” to check the reliability of the human graders.[K] But the growing influence of the EdX consortium to set standards is likely to give the technology a boost. On Tuesday, Stanford announced that it would work with EdX to developa joint educational system that will make use of the automated assessment technology.[L] Two start-ups, Coursera and Udacity, recently founded by Stanford faculty members to create “massive open online courses,” or MOOCs, are also committed to automated assessment systems because of the value of instant feedback. “It allows students to get immediate feedback on their work, so that learning turns into a game, with students naturally gravitating (吸引) to ward resubmitting the work until they get it right,” said Daphne Koller, a computer scientist and a founder of Coursera.[M]Last year the Hewlett Foundation, a grant-making organization set up by one of the Hewlett-Packard founders and his wife, sponsored two $100,000 prizes aimed at improving software that grades essays and short answers. More than 150 teams entered each category. A winner of one of the Hewlett contests, Vik Paruchuri, was hired by EdX to help design its assessment software.[N] “One of our focuses is to help kids learn how to think critically,” said Victor Vuchic, a program officer at the Hewlett Foundation. “It’s probably impossible to do that with multiple-choice tests. The challenge is that this requires human graders, and so they cost a lot more and they take a lot more time.”[O] Mark D. Shermis, a professor at the University of Akron in Ohio, supervised the Hewlett Foundation’s contest on automated essay scoring and wrote a paper about the experiment. I n his view, the technology—though imperfect—has a place in educational settings.[P] With increasingly large classes, it is impossible for most teachers to give students meaningful feedback on writing assignments, he said. Plus, he noted, critics of the technology have tended to come from the nation’s best universities, where the level of teaching is much better than at most schools.[Q] “Often they come from very famous institutions where, in fact, they do a much better job of providing feedback than a mac hine ever could,” Dr. Shermis said. “There seems to be a lack of appreciation of what is actually going on in the real world.”46. Some professionals in education are collecting signatures to voice their opposition toautomated essay grading.47. Using sof tware to grade students’ essays saves teachers time for other work.48. The Hewlett contests aim at improving essay grading software.49. Though the automated grading System is widely used in multiple-choice tests, automatedessay grading is still criticized by many educators.50. Some people don’t believe the software grading system can do as good a job as humangraders.51. Critics of automated essay scoring do not seem to know the true realities in less famousuniversities.52. Critics argue many important aspects of effective writing cannot be measured by computerrating programs.53. As class size grows, most teachers are unable to give students valuable comments as to how toimprove their writing.54. The automated assessment technology is sometimes used to double check the work of humangraders.Section CPassage OneQuestions 56 to 60 are based on the following passage.Some of the world’s most significant problems never hit headlines. One example comes from agriculture. Food riots and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yieldsof some of the world’s major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.The authors take a vast number of data points for the four most important crops: rice, wheat, corn and soyabeans (⼤⾖). They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.There are two worrying features of the slowdown. One is that it has been particularly sharp in the world’s most populous (⼈⼝多的) countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse.Second, yield growth has been lower in wheat and rice than in corn and soyabeans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Com and soyabeans are more important as feed grains. The authors note that “we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world.”The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organisation has argued.Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to revert (回返) to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.56. What does the author try to draw attention to?A) Food riots and hunger in the world. B) News headlines in the leading media.C) The decline of the grain yield growth. D) The food supply in populous countries.57. Why does the author mention India and China in particular?A) Their self-sufficiency is vital to the stability of world food markets.B) Their food yields have begun to decrease sharply in recent years.C) Their big populations are causing worldwide concerns.D) Their food self-sufficiency has been taken for granted.58. What does the new study by the two universities say about recent crop improvement efforts?A) They fail to produce the same remarkable results as before the 1980s.B) They contribute a lot to the improvement of human food production.C) They play a major role in guaranteeing the food security of the world.D) They focus more on the increase of animal feed than human food grains.59. What does the Food and Agriculture Organisation say about world food production in thecoming decades?A) The growing population will greatly increase the pressure on world food supplies.B) The optimistic prediction about food production should be viewed with caution.C) The slowdown of the growth in yields of major food crops will be reversed.D) The world will be able to feed its population without increasing farmland.60. How does the author view the argument of the Food and Agriculture Organisation?A) It is built on the findings of a new study.B) It is based on a doubtful assumption.C) It is backed by strong evidence.D) It is open to further discussion.Passage TwoQuestions 61 to 65 are based on the following passage.The endless debate about “work-life balance” often contains a hopeful footnote about stay-at-home dads. If American society and business won’t make it easier on future female leaders who choose to have children, there is still the ray of hope that increasing numbers of full-time fathers will. But based on today’s socioeconomic trends, this hope is, unfortunately, misguided.It’s true that the number of men who have left work to do their thing as full-time parents has do ubled in a decade, but it’s still very small: only 0.8% of married couples where the stay-at-home father was out of the labor force for a year. Even that percentage is likely inflated by men thrust into their caretaker role by a downsizing. This is simply not a large enough group to reduce the social stigma (污名) and force other adjustments necessary to supporting men in this decision, even if only for a relatively short time.Even shorter times away from work for working fathers are already difficult. A study found that 85% of new fathers take some time off after the birth of a child—but for all but a few, it’s a week or two at most. Meanwhile, the average for women who take leave is more than 10 weeks.Such choices impact who moves up in the organization. While you’re away, someone else is doing your work, mak ing your sales, taking care of your customers. That can’t help you at work. It can only hurt you. Women, of course, face the same issues of returning after a long absence. But with many more women than men choosing to leave the workforce entirely to raise families, returning from an extended parental leave doesn’t raise as many eyebrows as it does for men.Women would make more if they didn’t break their earning trajectory (轨迹) by leaving the workforce, or if higher-paying professions were more family-friendly. In the foreseeable future, stay-at-home fathers may make all the difference for individual families, but their presence won’t reduce the numbers of high-potential women who are forced to choose between family and career.61. What gives women a ray of hope to achieve work-life balance?A) More men taking an extended parental leave.B) People’s changing attitudes towards family.C) More women entering business management.D) The improvement of their socioeconomic status.62. Why does the author say the hope for more full-time fathers is misguided?A) Women are better at taking care of children.B) Many men value work more than their family.C) Their number is too small to make a difference.D) Not many men have the chance to stay at home.63. Why do few men take a long parental leave?A) A long leave will have a negative impact on their career.B) They just have too many responsibilities to fulfill at work.C) The economic loss will be too much for their family to bear.D) They are likely to get fired if absent from work for too long.64. What is the most likely reaction to men returning from an extended parental leave?A) Jealousy. B) Surprise. C) Admiration. D) Sympathy.65. What does the author say about high-potential women in the not-too-distant future?A) They will benefit from the trend of more fathers staying at home.B) They will find high-paying professions a bit more family-friendly.C) They are unlikely to break their career trajectory to raise a family.D) They will still face the difficult choice between career and children.Part IV Translation (30 minutes)据报道，今年中国快递服务(courier service)将递送⼤约120亿包裹。
北师大版数学七年级下第六周周测试卷.docx
初中数学试卷桑水出品城东中学2014-2015下学期七年级数学第六周周测试卷一、选择题（每题3分，共24分）1.下列算式能用平方差公式计算的是（）A.（2a＋b）（2b－a）B.)121)(121(--+xxC.（3x－y）（－3x＋y）D.（－m－n）（－m＋n）2.有下列长度（cm）的三条小木棒，如果首尾顺次连结，能钉成三角形的是（）A．10、14、24 B．12、16、32 C．16、6、4 D．8、10、123、下列各个图形中，哪一个图形中AD是△ABC中BC边上的高（）（A）（B）（C）（D）4、如图，已知AD∥BC，∠B＝30°，DB平分∠ADE，则∠DEC为（）A、30°B、60°C、90°D、120°5.如图，下列判断正确的是：（）A、若∠1=∠2，则AD∥BCB、若∠1=∠2，则AB∥CDC、若∠A=∠3，则AD∥BCD、若∠3+∠A=180°，则AB∥CD第4题第6题6.如图,AD是△ABC的边BC上的中线,BE是△ABD的边AD上的中线,若△ABC的面积是16,则△ABE的面积是（）.A、16B、8C、4D、27.下列计算错误的个数是（）① (x－12)2=x2－2x+14②(3b－a)2=9b2－a2③(－3b－a)(a－3b)=a2－9b2 ④（－x－y）2=x2+2xy+y2A、1个B、2个C、3个D、4个1A BD C235题图DCBAE8.面积是160平方米的长方形，它的长y 米，宽x 米之间的关系表达式是 （） A. y ＝160x B. y ＝x160 C y ＝160+x D y ＝160－x9. 如图，甲、乙二人在一次赛跑中，路程s （米）与时间t(分)的关系如图所示，从图中可以看出，下列结论错误的是（ ）A.这是一次100米赛跑B.甲比乙先到达终点C.乙跑完全程需12.5秒D.甲的速度为8米/秒10.“龟兔赛跑”讲述了这样的故事：领先的兔子看着缓慢爬行的乌龟，骄傲起来，睡了一觉。
高考第六周理科数学周测题
2014级第六周理科数学周测题班级： 姓名： 得分： 一．选择题（本大题共8小题，每小题6分，共48）1．“0<x ”是“0)1ln(<+x ”的（）A ．充分而不必要条件B ．必要而不充分条件C ．充分必要条件D ．既不充分也不必要条件 2．设sin33,cos55,tan35,a b c =︒=︒=︒则（） A ．a b c >>B ．b c a >>C ．c b a >>D ．c a b >>3.若向量,a b 满足：()()1,,2,a a b a a b b =+⊥+⊥则b =（）A ．2BC ．1D ．24.设函数))((R x x f ∈满足()()sin f x f x x π+=+，当π<≤x 0时，0)(=x f ，则=)623(πf （） A ．12B ．23C ．0D ．21-5.若函数()12f x x x a =+++的最小值为3，则实数a 的值为（）A ．5或8B ．1-或5C ．1-或4-D ．4-或86.已知命题:p 对任意x R ∈，总有20x>；:"1"q x >是"2"x >的充分不必要条件则下列命题为真命题的是（）.A p q ∧.B p q ⌝∧⌝.C p q ⌝∧.D p q ∧⌝7．已知()ln(1)ln(1)f x x x =+--，(1,1)x ∈-。
现有下列命题：①()()f x f x -=-；②22()2()1xf f x x =+；③|()|2||f x x ≥。
其中的所有正确命题的序号是 A ．①②③B ．②③C ．①③D ．①②8.已知()f x 为偶函数，当0x ≥时，1cos ,[0,]2()121,(,)2x x f x x x π⎧∈⎪⎪=⎨⎪-∈+∞⎪⎩，则不等式1(1)2f x -≤的解集为（）A ．1247[,][,]4334B ．3112[,][,]4343--C ．1347[,][,]3434D ．3113[,][,]4334--二．填空题（本大题4小题，每小题6分，共24分，请将答案填在答题卡相应横线上）9.若将函数()sin 24f x x π⎛⎫=+⎪⎝⎭的图像向右平移ϕ个单位，所得图像关于y 轴对称,则ϕ的最小正值是________.10.已知函数2()1f x x mx =+-，若对任意[1]x m m ∈+，，都有()0f x <成立，则实数m 的取值范围是 11．如图，在平行四边形ABCD 中，已知，85AB AD ==，，32CP PD AP BP =⋅=，，则AB AD ⋅的值是12.已知两个不相等的非零向量,a b ，两组向量12345,,,,x x x x x 和12345,,,,y y y y y 均由2个a 和3个b 排列而成。
2015年6月大学英语四级考试真题及答案
2015年6月英语四级考试真题及答案范文：Writing：家长角色There are several possible reasons accountable for this phenomenon(中心句). To begin with, family in growing numbers has only one child; therefore, parents oftentimes focus all their attentions on that child and exert much pressure on him or her(原因一). Moreover, numerous parents intend to realize their unfulfilled dreams by letting their children learn what they failed to learn and apply for the college by which they failed to be accepted, because they have become richer and they believe that they have the power to make what they wanted and want come true now(原因二). For instance, my uncle used to be a poor man and his dream that one day he would become a violinist was broken because of lack of money. But he made a fortune by selling coals, and then forced his son, my younger brother to practice playing violin. My brother was a huge fan of sports, but now he has to play violin everyday unwillingly and ofter quarrels with their parents(举例：原来-然后-结局).To sum up, it is unreasonable for parents to control their children’s life(总结句). In order to help them grow happily and healthily, parents are supposed to communicate with their kids about what they are really interested in(建议一，目的句型). Meanwhile, it is about time that parents let their kids make their own choices(建议二，“是时候”句型). Only in these ways will children grow in a psychologically happy environment and realize their own dreams.短对话原文（周祖骏）1．W: I am going to give up playing chess, I lost again today.M: Just because you lost? Is that any reason to quit?Q: What does the man imply?2．M: Do you know Shirley’s new address? She’s got some mail here and I’d like to fold it to her.W: Well, we’ve not been in touch for quit a while. Let’s see, Marry should know it? Q: What does the women mean?3.W: I missed the classes this morning could you please lent me your notes?M: My notes? You’ve never seem my hand writing, have you?Q: What does the man imply?4.M: I am taking my girlfriend to the fancy new restaurant for her birthday tonight.W: I went there last weekend and I found it rather disappointing.Q: What does the women mean?5.W: Winter is over at last, time to put away my gloves and boots.M: I ‘ve been waiting for this for months.Q: What does the man mean?6.W: Thank you for bringing the books back.M: I thought you need them over the weekend, many thanks for let me use them.Q: What do we learn from conversation？7.W: Are you working flexible hours?M: No I am not, The weather today is so nice, so I decided to walk to work and that meant I have to leave an hour earlier than usual.Q: What does the man decide to do?8.W: Our plane has been circling for a long time, we could delay.M: The airport was closed for a while this morning and things are still not back to normal.Q: What does the man mean?短对话答案解析（孙祥喆）【总评】：8 个短对话总体来说比以往四级听力要难，但是考察水平令人叹服。
七年级(下)数学周测卷(第6周)
七年级下数学第6周周测试卷一、选择题：（每题3分，共30分）1、下列关于的说法中，错误的是（）A.是无理数B.是15的算术平方根C.15的平方根是D.2、下列等式中，错误的是（）A. B. C. D.3、对任意实数a，则下列等式一定成立的是 ( )A. B. C. D.4、下列说法中，不正确的是（）A.10的立方根是B.-2是4的一个平方根C.的平方根是D.0.01的算术平方根是0.15、如图,下列条件：①∠1=∠3;②∠2=∠3;③∠4=∠5;④∠2＋∠4=180°.能判断直线∥的有（）A.1个B.2个C.3个D.4个第5题图第6题图第7题图6、如图,直线a∥b，射线DC与直线a相交于点C,过点D作DE⊥b于点E,∠1=25°,则∠2度数为（）A.115°B.125°C.155°D.165°7、如图，AB//CD//EF,那么∠BAC+∠ACE+∠CEF=( ) .A.1800B.2700C.3600D.54008、实数a、b在轴上的位置如图所示，且|a|＞|b|，则化简∣a+b∣的结果为（）A.2a+bB.﹣2a+bC.bD.2a﹣b9、若用a表示的整数部分，则在数轴上与2+a最接近的数所表示的点是（）A.A点B.B点C.C点D.D点10、若a2=4，b3=27且ab＜0，则a﹣b的值为（）A.﹣2B.±5C.5D.﹣5二、填空题: （每题4分，共20分）11、的算术平方根是12、64的平方根的立方根是。
13、直线l1∥l2，一块含45°角的直角三角板如图所示放置，∠1=85°，则∠2= .第13题图第14题图14、如图，AB∥CD，∠1=62°，FG平分∠EFD，则∠2= ．15、实数a在数轴上的位置如图所示，化简： .三、解答题：（每题10分，共50分）16、计算题:(1) ＋－(2)3(x+1)2=48．17、如图 ,已知∠AED=∠C ,∠3=∠B ,请写出∠1与∠2的数量关系 ,并对结论进行证明。
高中英语每日一题(第06周)每周一测(含解析)新人教版选修6(new)
C。 OptimisticD。 Negative.
7。In which column can you read the article in a newspaper？
A。 Language Learning。
B。 Comments on hot issues。
C。 Science Development。
Think about all the related clues that go into understanding an expression:volume,gesture, situation, and even your culture。 All are likely to convey as much meaning as the words you use.
1.At which hotel can a tourist still enjoy swimming if he/she lives in none of the hotels mentioned above?
A。 The Ritz－Carlton.
B. W Hotel Hong Kong。
C。 Hotel Indigo。
每周一测
Ⅰ。阅读理解
A
What will you think of when it comes to “Hong Kong” and “great swimming"？ Shopping sure， but swimming pool？ Turns out, along with all its other attractions, Hong Kong is loaded with wonderful pools。
周周清第六周
周周清（第六周）一、选择题1、如图1，下列说法正确的是（）．A．如果∠1和∠2互补，那么l1∥l2B．如果∠2＝∠3，那么l1∥l2C．如果∠1＝∠2，那么l1∥l2D．如果∠1＝∠3，那么l1∥l2（图1）（图2）（图3）2、如果电影票上的“5排2号”记作（5，2），那么（4，3）表示（）．A．3排5号B．5排3号C．4排3号D．3排4号3、如图2所示，在灌溉农田时，要把河（直线l表示一条河）中的水引到农田P处，设计了四条路线PA，PB，PC，PD（其中PB⊥l），你选择哪条路线挖渠才能使渠道最短（）．A．PA B．PB C．PC D．PD4、x2的算术平方根是（）.A．x B．C．±D．|x|5、线段CD是由线段AB平移得到的，点A（－1，4）的对应点为C（4，7），则点B（－4，－1）的对应点D的坐标为（）A．（2，9）B．（5，3）C．（1，2）D．（－9，－4）6、下列语句正确的是（）A．的立方根是2B．－3是27的立方根C．的立方根是 D．（－1）2的立方根是－1 7、点B（m2＋1，－1）一定在（）．A．第一象限B．第二象限C．第三象限D．第四象限8、－π，－3，，的大小顺序是（）A． B． C．D．二、填空题（18分）9、的算术平方根是________，10、大于而小于的所有整数的和为________．11、若无理数a满足：－4＜a＜－1，请写出两个你熟悉的无理数：________．三、计算题12、（1）；（2）已知实数a，b满足，求a2012＋b2013的值．13、如图所示，已知AB∥DC，AE平分∠BAD，CD与AE相交于点F，∠CFE＝∠E．试说明AD∥BC．14、如图所示，△ABO中，A，B两点的坐标分别为（2，4），（7，2），C，G，F，E分别为过A，B两点所作的y轴、x轴的垂线与y轴、x轴的交点．求△AOB的面积．15、如图所示，AB∥CD，E为AD的中点．（1）过点E作EF∥AB，交BC于点F．（2）EF和DC的位置关系如何？请写出简单的推理过程．（3）用刻度尺量一下BF和CF的长度，你能得到什么结论？（4）用刻度尺量一下DC，EF，AB的长度，请你大胆猜想，你又能得到什么结论？。
自考中国新闻事业史(2015.4)真题及答案
中国新闻事业史2015年4月自考真题及答案一单选1. 唐朝神龙年间官员孙处玄在写给当朝大臣的信中说恨天下无书以广新闻，其中新闻一词指的是( )A.诏书B.奏折C.消息D.评论正确答案 C2. 我国古代由官方使用并面向中央和地方广泛流通的传播工具是( )A.进奏院状B.小钞C.露布D.简报正确答案A新兴传播媒介中还有“进奏院状”.进奏院是地方行政机构的驻京办事处。
汉朝初建时称邸，唐代大历12年(公元777年)改称进奏院。
进奏官为地方诸道军政长官委派，进奏官除呈递和承转文书，查询有关地方政务外，还向他们所在道的军政长官提供京都信息，其中有朝报的内容，也有他们自行采访的特别是与本地有关的新闻，甚至还有朝廷绝密消息。
这种报告是进奏官只上呈给地方最高军政长官阅读的半官方情报，带有“新闻信”性质，人称“进奏院状”.3. 郭士立声称，他办《东西洋考每月统记传》的意图是( B )A.为扩大对华鸦片贸易B.为军事侵略中国服务C.破除孔子的圣人地位D.破除中国人的排外关键4. 1891年，广报因发表了一条关于政府要员被参的消息，触犯了广东总督办李小泉，遭到查封，罪名是( D )A.诋毁宫廷B.妄言朝政C.攻衦阴私D.莠言乱政1891年因发表了一条政府要员被参的消息，触犯了广东总督李小泉，被强加"莠言乱政","淆乱是非"的罪名查封，于是邝其照便将报馆迁到沙面租界，该报改名《中西日报》继续出版5. 林则徐组织翻译编订的《澳门新闻纸》,《澳门月报》是一种( B )A.公开发行的报纸B.面向所有总督巡抚发的小册子C.面向中国基督教徒的反教小册子D.有关夷人活动的情况报告《澳门新闻纸》讲解：林则徐让人把其中的有关禁烟，兵事，各国夷情，鸦贸易等重要的信息和言论译成中文，提供给两广总督，广东巡抚，海关监督和军方，同时抄报朝廷，作为制定对外政策的参考。
这种翻译材料后来汇集成册，称为《澳门新闻纸》,它是我国最早的译报，相当于现在的《参考消息》.6. 1903年6月，导致苏报案发生的一个直接原因是，改报评论文章( A )A.辱骂光绪皇帝B.辱骂慈禧太后C.辱骂李鸿章D.呼吁君主立宪"苏报案"讲解：903年6月29日，《苏报》以显著地位刊登了章太炎的一《康有为与觉罗君之关系》,文中论述了革命的必要性和重要性，批驳了康有为的"只可行立宪，不可行革命"的谬论，还以轻蔑的口吻直呼光绪皇帝为"载游小丑".骂皇帝在当时就是犯了滔天大罪，这为清政府提供了直接迫害的借口，于是蓄谋已久的清政府遂勾结上海租界当局当天就出动警探去苏报馆和爱国学社捕人，章士钊等人闻风走避，章太炎被捕，邹容自动投案。
2024年【每周一测】第六周英语六年级上册基础练习题(含答案)
2024年【每周一测】第六周英语六年级上册基础练习题（含答案）试题部分一、选择题（每题2分，共20分）1. The word "elephant" is a(n) ________.A. nounB. adjectiveC. verbD. adverb2. Which of the following sentences is in the past tense?A. She eats an apple.B. She ate an apple.C. She is eating an apple.D. She will eat an apple.3. Choose the correct answer to plete the sentence: "I________ to the library every weekend."A. goB. goesC. goingD. went4. Which word is the opposite of "big"?A. smallB. tallC. shortD. fat5. What is the plural form of "child"?A. childsB. childC. childrenD. childes6. Choose the correct question word to plete the sentence: "________ is your favorite color?"A. WhatB. WhereC. WhoD. When7. Which sentence is correct?A. He can to swim.B. He can swimming.C. He can swim.D. He can swims.8. The abbreviation of "kilometre" is ________.A. kmB. klC. kgD. kd9. Which word is a pound word?A. catB. sunshineC. dogD. bird10. Choose the correct word to plete the sentence: "My mother is a ________."A. doctorB. teacherC. driverD. student二、判断题（每题2分，共10分）1. "The sun rises in the east." is a fact. ( )2. "She likes eating apples." means "She doesn't like eating apples." ( )3. "He is reading a book." is in the present continuous tense. ( )4. "I am going to the cinema." and "I will go to the cinema." have the same meaning. ( )5. "They are playing football." indicates that the action is happening now. ( )三、填空题（每题2分，共40分）1. The past tense of "do" is ________.2. "I ________ a book yesterday." (read)3. "She ________ to the park every Sunday." (go)4. "They ________ playing basketball." (stop)5. "He ________ a letter to his pen pal." (write)6. "We ________ a new puter game." (buy)7. "________ is your favorite day of the week?" (What)8. "The cat is ________ than the dog." (big)9. "I have ________ apples in my bag." (five)10. "She ________ to the party last night." (e)11. "They ________ a movie at the cinema." (see)12. "________ is the capital of France?" (What)13. "The sun ________ in the sky." (shine)14. "I ________ a cake for my birthday." (make)15. "He ________ his homework every evening." (do)16. "________ you like to go to the zoo?" (Would)17. "She ________ her teeth twice a day." (brush)18. "We ________ to the beach in the summer." (go)19. "________ is your favorite subject at school?" (Which)20. "The cat ________ the mouse." (catch)四、简答题（每题5分，共50分）1. What is the difference between "I do" and "I am doing"?2. Write a sentence using the past perfect tense.3. Explain the difference between "a" and "an".4. What is the plural form of "mouse"?5. Give an example of a pound word.6. Write a question using the word "where".7. How do you form the past tense of regular verbs?8. What is the opposite of "hot"?9. Write a sentence using the future tense.10. Explain the difference between "who" and "which".本套试题答案如下一、选择题1. A2. B3. A4. A5. C6. A7. C8. A9. B10. B二、判断题1. √2. ×3. √4. √5. √三、填空题1. did2. read3. goes4. stopped5. wrote6. bought7. What8. bigger9. five10. came11. saw12. What13. shines14. made15. does16. Would17. brushes18. go19. Which20. caught四、简答题1. "I do" is simple present tense, "I am doing" ispresent continuous tense.2. She had finished her homework before the movie started.3. "A" is used before words that begin with a consonant sound, "an" is used before words that begin with a vowel sound.4. mice5. sunshine6. Where did you go yesterday?7. Add ed to the base form of the verb.8. cold9. I will travel to Japan next year.10. "Who" is used for people, "which" is used for objects.。
每周题目练习1~6周 解析
送分题：这是一道整数裂项题，如1×2可裂为1×2×（3-0）÷3，即（1×2×3－0×1×2）÷3 2×3可裂为2×3×（4－1）÷3即（2×3×4－1×2×3）÷3 ......9×10可裂为9×10×（11－8）÷3即（9×10×11－8×9×10）÷3 所以原式=（1×2×3-0×1×2+2×3×4-1×2×3+……+9×10×11－8×9×10）÷3即（9×10×11－8×9×10+8×9×10-7×8×9+……+2×3×4－1×2×3+1×2×3－0×1×2）÷3 即（9×10×11-0×1×2）÷3，为330略难题：这是一道归纳递推题。
吃一块明显只有一种，吃两块有2种，吃三块有（1+1+1）（1+2）（2+1）（3）四种，吃四块有三种途径：1，已经吃了一块，再吃三块2，已经吃了两块，再吃两块3，已经吃了三块，再吃一块。
因此吃四块的方法数就是吃一块的方法数+吃两块的方法数+吃三块的方法数，所以有1+2+4=7种。
同理，吃五块有2+4+7=13种，吃六块有4+7+13=24种。
超难题：1001=7×11×13 1003=17×59 1005=3×5×67 1007=19×53 1009是质数。
建筑工程经济(第2版)课后习题参考答案赵小娥2015.4
参考答案模块1 课程绪论 答案略模块2 建筑产品及建筑业2.1 建筑产品一、选择题1.A2.AB3.ABCD4.ABC5.ABCD 二、判断题1.√2. ×3.√4.×5. √ 三、实训 略2.2 建筑业一、选择题1.ABC2.AB3.CD4.BD5.D 二、判断题1.×2.√3.√4.×5.× 三、实训 略模块3 可行性研究工作3.1 项目资金筹措一、单项选择题1.A2.B3.C4.C5.A6.C7.B8.C 二、判断题 1.× 2.× 3.√ 4.× 5.× 三、计算题 1．解：%54.7%5.01%)251(%101)1(=--⨯=--⋅=d d d F T R K2. 解：（1）贷款（2）债券 （3）普通股票比较三种筹资方式的资金成本，可知债券筹资的资金成本最低，因此选择债券筹资。
3. 答：首先按市场价值计算各种筹资方式的资本成本，然后将计算结果代入公式直接计算即可。
资本总额=400×（1+5%）+800×（1+10%）+200+200=1700（万元） W p =400×（1+5%）/1700×100%≈24.71% W s =800（1+10%）/1700×100%≈51.76% W b =200/1700×100%≈11.76% W e =200/1700×100%≈11.76%K w =7.62×24.71%+10.26%×51.76%+6%×11.76%+10.14%×11.76%=9.09%3.2 市场研究一、单选题1.D2.A3.C4.D5.D6.C7.A8.A 二、判断题 1.× 2. √ 3.√ 4.× 5.×三、计算题1．某建筑公司近7年完成的施工产值如表3-28所示，试用平均增减量、平均发展速度和直线趋势等方法预测今后5年每年的施工产值。
2015年6月英语四级真题及答案汇总
2015年6月英语四级真题及答案汇总Directions: For this part, you are allowed 30 minutes to write an essay based on the pict ure below.You should start your essay with a brief description of the picture and then co mment on the kid's understanding of going to school.You should write at least 120 words but no more than 180 words.“Why am I going to school if my phone already knows everything? ”Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter.Please mark the corresponding letter for each item on Answer Sheet2 with a single line through the centre.You may not use any of the words in the bank more than once.Questions 36 to 45 are based on the following passage.The U.S. Department of Education is making efforts to ensure that all students have equal access to a quality education. Today it is（36）the launch of the Excellent Educators for All Initiative.The initiative will help states and school districts support great educators for the students who need them most."All children are（37 ）to a high-quality education regardless of their race, zip code or family income.It is （38 ）important that we provide teachers and principals the support they need to help students reach their full （39）," U.S.Secretary of Education Arne Duncan said." Despite the excellent work and deep（40 ）of our nation's teachers and principals, students in high-poverty, high- minority schools are unfairly treated across our country.We have to do better.Local leaders and educators will （41 ）their own creative solutions, but we must work together to （42）our focus on how to better recruit, support and （43）effective teachers and principals for all students, especially the kids who need them most."Today's announcement is another important step forward in improving access to a quality education, a （44 ）of President Obama's year of ter today, Secretary Duncan will lead a roundtable discussion with principals and school teachers from across the country about the （45 ）of working in high-need schools and how to adopt promising practices for supporting great educators in these schools.A.AnnouncingB.beneficialC.challengesmitmentponentF.contestsG.critically H.develop I.distributingJ.enhance K.entitled L.potentialM.properly N.qualified O.retainSection BDirections: In this section, you are going to read a passage with ten statements attached toit.Eachstatement contains information given in one of the paragraphs.Identify the paragraph from which the information is derived.You may choose a paragraph more than once.Each paragraph is marked with a letter.Answer the questions by marking thecorresponding letter on Answer Sheet 2.The Changes Facing Fast FoodA)Fast-food firms have to be a thick-skinned bunch.Health experts regularly criticize them severelyfor selling food that makes people fat.Critics even complain that McDonald's, whose logosymbolizes calorie excess, should not have been allowed to sponsor the World Cup.These arethings fast-food firms have learnt to cope with.But not perhaps for much longer.The burgerbusiness faces more pressure from regulators at a time when it is already adapting strategies inresponse to shifts in the global economy.B)Fast food was once thought to be recession-proof.When consumers need to cut spending, the logic goes, cheap meals like Big Macs and Whoppers become even more attractive.Such "trading down"proved true for much of the latest recession, when fast-food companies picked up customers who could no longer afford to eat at casual restaurants.Traffic was boosted in America, the home of fast food, with discounts and promotions, such as $1 menus and cheap combination meals.C)As a result, fast-food chains have weathered the recession better than their more expensive competitors.In 2009 sales at full-service restaurants in America fell by more than 6% ,but total sales remained about the same at fast-food chains.In some markets, such as Japan, France and Britain, total spending on fast food increased.Same-store sales in America at McDonald's, the world's largest fast-food company, did not decline throughout the downturn.Panera Bread, an American fast-food chain known for its fresh ingredients, performed well, too, because it offers higher-quality food at lower prices than restaurants.D)But not all fast-food companies have been as fortunate.Many, such as Burger King, have seen sales fall.In a severe recession, while some people trade down to fast food, many others eatat home more frequently to save money.David Palmer, an analyst at UBS, a bank, says smallerfast- food chains in America, such as Jack in the Box and Carl's Jr., have been hit particularly hardin this downturn because they are competing with the global giant McDonald's, which increased spending on advertising by more than 7% last year as others cut back.E)Some fast-food companies also sacrificed their own profits by trying to give customers better value.During the recession companies set prices low, hoping that once they had tempted customers through the door they would be persuaded to order more expensive items.But in many cases that strategy did not st year Burger King franchisees ( 特许经营人)sued (起诉)the company over its double-cheeseburger promotion, claiming it was unfair for them to be repuired to sell these for $1 when they cost$1.10 to make.In May a judge ruled in favour of Burger King.Nevertheless, the company may still be cursing its decision to promote cheap choices over more expensive ones because items on its "value menu" now account for around 20% of all sales, upfrom 12% last October.F)Analysts expect the fast-food industry to grow modestly this year.But the downturn is makingcompanies rethink their strategies.Many are now introducing higher-priced items to entice ( 引诱)consumers away from $1 specials.KFC, a division of Yum! Brands, which also owns Taco Belland Pizza Hut, has launched a chicken sandwich that costs around $5.And in May Burger Kingintroduced barbecue ( 烧烤)pork ribs at $7 for eight.G)Companies are also trying to get customers to buy new and more items, including drinks.McDonald's started selling better coffee as a challenge to Starbucks.Its " McCafe" line nowaccounts for an estimated 6% of sales in America.Starbucks has sold rights to its Seattle's Bestcoffee brand to Burger King, which will start selling it later this year.H)As fast-food companies shift from "super size" to "more buys", they need to keep customer traffichigh throughout the day.Many see breakfast as a big opportunity, and not just for fatty food.McDonald's will start selling porridge (粥)in America next year.Breakfast has the potential to bevery profitable, says Sara Senatore of Bernstein, a research firm, because the margins can be high.Fast-food companies are also adding midday and late-night snacks, such as blended drinks andwraps.The idea is that by having a greater range of things on the menu, "wecan sell to consumersproducts they want all day," says Rick Carucci., the .chief financial officer of Yum !Brands.I)But what about those growing waistlines? So far, fast-food firms have cleverly avoided governmentregulation.By providing healthy options, like salads and low-calorie sandwiches, they have at leastgiven the impression of doing something about helping to fight obesity (肥胖症).These offeringsare not necessarily loss-leaders, as they broaden the appeal of outlets to groups of diners thatinclude some people who don't want to eat a burger.But customers cannotbe forced to ordersalads instead of fries.J)In the future, simply offering a healthy option may not be good enough."Every packaged-food and restaurant company I know is concerned about regulation right now," says Mr.Palmer of UBS.America's health-reform bill, which Congress passed this year, requires restaurant chains with 20 ormore outlets to put the calorie-content of items they serve on the menu.A study by the NationalBureau of Economic Research, which tracked the effects on Starbucks of a similar calorie-postinglaw in New York City in 2007, found that the average calorie-count per transaction fell 6% andrevenue increased 3% at Starbucks stores where a Dunldn Donuts outlet was nearby--a sign, it issaid, that menu-labelling could favour chains thathave more healthy offerings.K)In order to avoid other legislation in America and elsewhere, fast-food companies will have tocontinue innovating ( 创新).Walt Riker of McDonald's claims the change it has made in its menumeans it offers more healthy items than it did a few years ago."We probably sell morevegetables,more milk, more salads, more apples than any restaurant business in the world," he says.But therecent proposal by a county in California to ban McDonald's from including toys in its high-calorie"Happy Meals", because legislators believe it attracts children to unhealthy food, suggests there isa lot more left to do.46.Some people propose laws be made to stop McDonald's from attaching toys to its food specials for children.47.Fast-food finns may not be able to cope with pressures from food regulation in the near future.48.Burger King will start to sell Seattle's Best coffee to increase sales.49.Some fast-food firms provide healthy food to give the impression they are helping to tacklethe obesity problem.50.During the recession, many customers turned to fast food to save money.51.Many people eat out less often to save money in times of recession.52.During the recession, Burger King's promotional strategy of offering low-priced items often proved ineffective.53.Fast-food restaurants can make a lot of money by selling breakfast.54.Many fast-food companies now expect to increase their revenue by introducing higher-priced items.55.A newly-passed law asks big fast-food chains to specify the calorie count of what they serveon the menu.Section CDirections: There are 2 passages in this section.Each passage is followed by some questions orunfinished statements.For each of them there are four choices marked A., B), C) andD ).You should decide on the best choice and mark the corresponding letter on AnswerSheet 2 with a single line through the centre.Passage OneQuestions 56 to 60 are based on the following passage.If you think a high-factor sunscreen ( 防晒霜)keeps you safe from harmful rays, you may be wrong.Research in this week's Nature shows that while factor 50 reduces the number of melanomas(黑瘤)and delays their occurrence, it can't prevent them.Melanomas are the most aggressive skin cancers.You have a higher risk if you have red or blond hair, fair skin, blue or green eyes, or sunburn easily, or if a close relative has had one.Melanomas are more common if youhave periodic intense exposure to the sun.Other skin cancers are increasingly likely with long-term exposure.There is continuing debate as to how effective sunscreen is in reducing melanomas the evidence is weaker than it is for preventing other types of skin cancer.A 2011 Australian study of1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.A second study, comparing 1,167 people with melanomas to 1,101 who didn't have the cancer, found that using sunscreen routinely, alongside other protection such as hats,long sleeves or staying in the shade, did give some protection.This study said other forms of sun protection not sunscreen seemed most beneficial.The study relied on people remembering what they had done over each decade of their lives, so it's notentirely reliable.But it seems reasonable to think sunscreen gives people a false sense of securityin the sun.Many people also don't use sunscreen properly applying insufficient amounts, failing to reapply after a couple of hours and staying in the sun too long.It is sunburn that is most worrying recent research shows five episodes of sunburn in the teenage years increases the riskof all skin cancers.The good news is that a combination of sunscreen and covering up can reduce melanoma rates,as shown by Australian figures from their slip-slop-slap campaign.So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on ( 抹上)sunscreen and slap on a hat.56. What is people's common expectation of a high-factor sunscreen?A.It will delay the occurrence of skin cancer.B.It will protect them from sunburn.C.It will keep their skin smooth and fair.D.It will work for people of any skin color.57. What does the research in Nature say about a high-factor sunscreen?A.It is ineffective in preventing melanomas.B.It is ineffective in case of intense sunlight.C.It is ineffective with long-term exposure.D.It is ineffective for people with fair skin.58. What do we learn from the 2011 Australian study of 1,621 people?A.Sunscreen should be applied alongside other protection measures.B.High-risk people benefit the most from the application of sunscreen.C.Irregular application of sunscreen does women more harm than good.D.Daily application of sunscreen helps reduce the incidence of melanomas.59. What does the author say about the second Australian study?A.It misleads people to rely on sunscreen for protection.B.It helps people to select the most effective sunscreen.C.It is not based on direct observation of the subjects.D.It confirms the results of the first Australian study.60. What does the author suggest to reduce melanoma rates?ing both covering up and sunscreen.B.Staying in the shade whenever possible.ing covering up instead of sunscreen.D.Applying the right amount of sunscreen.Passage TwoQuestions 61 to 65 are based on the following passage.Across the rich world, well-educated people increasingly work longer than the less-skilled.Some65% of American men aged 62 -74 with a professional degree are in the workforce, compared with32% of men with only a high-school certificate.This gap is part of a deepening divide between the well-educated well-off and the unskilled poor.Rapid technological advance has raised the incomes of the highly skilled while squeezing those of the unskilled.The consequences, for individuals and society, are profound.The world is facing an astonishing rise in the number of old people, and they will live longer than ever before.Over the next 20 years the global population of those aged 65 or more willalmost double, from 600 million to 1.1 billion.The experience of the 20th century, when greater longevity (长寿)translated into more years in retirement rather than more years at work, has persuaded many observers that this shift will lead to slower economic growth, while the swelling ranks of pensioners will create government budget problems.But the notion of a sharp division between the working young and the idle old misses a new trend, the growing gap between the skilled and the unskilled.Employment rates are falling among younger unskilled people, whereas older skilled folk are working longer.The divide is most extreme in America, where well-educated baby-boomers ( 二战后生育高峰期出生的美国人)are putting off retirement while many less-skilled younger people have dropped out of the workforce.Policy is partly responsible.Many European governments have abandoned policies that usedto encourage people to retire early.Rising life expectancy (预期寿命), combined with the replacement of generous defamed-benefit pension plans with less generous defined-contribution ones, means that even the better-off must work longer to have a comfortable retirement.But the changing nature of work also plays a big role.Pay has risen sharply for the highly educated, and those people continue to reap rich rewards into old age because these days the educated elderly are more productive than the preceding generation.Technological change may well reinforce that shift: the skills that complement computers, from management knowhow to creativity, do not necessarily decline with age.61. What is happening in the workforce in rich countries?A.Younger people are replacing the elderly.B.Well-educated people tend to work longer.C.Unemployment rates are rising year after year.D.People with no college degree do not easily find work.62. What has helped deepen the divide between the well-off and the poor?A.Longer life expectancies.B.A rapid technological advance.C.Profound changes in the workforce.D.A growing number of the well-educated.63. What do many observers predict in view of the experience of the 20th century?A.Economic growth will slow down.ernment budgets will increase.C.More people will try to pursue higher education.D.There will be more competition in the job market.64. What is the result of policy changes in European countries?A.Unskilled workers may choose to retire early.B.More people have to receive in-service training.C.Even wealthy people must work longer to live comfortably in retirement.D.People may be able to enjoy generous defined-benefits from pension plans.65. What is characteristic of work in the 21st century?puters will do more complicated work.B.More will be taken by the educated young.C.Most jobs to be done will be the creative ones.D.Skills are highly valued regardless of age.Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet 2.中国是世界上最古老的文明之一。
真题模拟考试：2022 护理学基础真题模拟及答案(3)
真题模拟考试：2022 护理学基础真题模拟及答案(3)共714道题1、(2015.4，单选34)在体温单上，大便失禁的记录符号为【】（单选题）A. “*”B. “.”C. “×”D. “E”试题答案：A2、正确的口腔卫生护理措施是（单选题）A. 每天至少刷牙1次B. 晚上睡前戴上假牙C. 每餐后漱口D. 假牙浸泡于热水中试题答案：C3、画体温单时，脉搏用（单选题）A. 红色铅笔、“.”记录B. 蓝色铅笔、“.”C. 红色铅笔、“×”记录D. 蓝色铅笔、“×”记录试题答案：A4、行大量不保留灌肠时患者出现脉速、出冷汗、剧烈腹痛时应立即 ( ) （单选题）A. 拔除肛管B. 嘱患者张口深呼吸C. 降低肛管高度D. 挤捏肛管快速灌入试题答案：A5、患者石某，患老年慢性支气管炎，痰液黏稠，不易咳出，为帮助其排出痰液，给予氧气雾化吸入，下列哪种方法是错误的 ( ) （单选题）A. 初次做治疗时，向患者解释清楚基本操作方法B. 患者取平卧位C. 将氧流量调至6～1OL/minD. 呼气时松开出气口试题答案：B6、患者发热期的特点是（单选题）A. 产热增加B. 散热多于产热C. 散热增加而产热趋于平衡D. 产热和散热在较高水平上趋于平衡试题答案：A7、度冷丁100mg IM q4h PRN此医嘱是（单选题）A. 长期医嘱B. 临时医嘱C. 长期备用医嘱D. 临时备用医嘱试题答案：C8、肠外营养若发生空气栓塞时，患者应（单选题）A. 左侧卧位B. 右侧卧位C. 半坐卧位D. 端坐位试题答案：A9、进行氧气雾化吸入时，其氧流量应调至 ( ) （单选题）A. 4～6L/minB. 6～10L/minC. 12～14L/minD. 10～12l/min试题答案：B10、护理程序的提出是在（单选题）A. 1950年B. 1955年C. 1973年D. 1982年试题答案：B11、濒死阶段病人相对较晚消失的感觉是（单选题）A. 视觉B. 听觉C. 嗅觉D. 味觉试题答案：B12、吸气性呼吸困难多见于（单选题）A. 肺不张B. 气管异物C. 肺炎D. 心功能不全试题答案：B13、下面措施中不属于晚间护理内容的是（单选题）A. 进行预防压疮的护理B. 协助患者料理个人卫生C. 调节室内光线及温度D. 心理护理试题答案：D14、下列关于护理诊断的排列顺序和原则说法错误的是（单选题）A. 应按首优、中优、次优的顺序进行排列B. 危机服务对象生命的问题始终摆在护理行动的首位C. 现存的问题有限解决，但不要忽视潜在的有危险性的问题D. 当护理人员的设想与服务对象的想法不相符合时，按照服务对象的想法实施试题答案：D15、长期鼻饲的患者，胃管应每隔几天更换一次 ( ) （单选题）A. 5天B. 3天C. 12天D. 7天试题答案：D16、可用碳酸氢钠洗胃，禁用高锰酸钾的中毒是（单选题）A. 巴比妥类B. 敌敌畏C. 敌百虫D. 乐果试题答案：D17、为病人注入鼻饲液毕，再注入少量温开水的目的，下列叙述错误的是（单选题）A. 避免鼻饲液积于管腔中B. 避免管腔堵塞C. 避免病人出现胃肠炎D. 避免病人口渴试题答案：D18、化学消毒剂适用于人体体表消毒的使用方法是（单选题）A. 浸泡法B. 喷雾法C. 擦拭法D. 熏蒸法试题答案：A19、根据世界卫生组织对疼痛程度的划分，表现为疼痛明显、不能忍受、睡眠受干扰的疼痛程度属于 ( ) （单选题）A. 0级B. 1级C. 2级D. 3级试题答案：C20、成人腋温正常范围是（单选题）A. 35.8～36.8℃B. 36.0～37.0℃C. 35.5～36.5℃D. 36.0～36.8℃试题答案：B21、碘伏属于（单选题）A. 灭菌剂B. 高效水平消毒剂C. 中效水平消毒剂D. 低效水平消毒剂试题答案：C22、李某，欲行结肠镜检查，在钡灌肠的前1天，护士嘱患者不能进食一些食物，但可进食( ) （单选题）A. 牛奶B. 稀饭C. 水果D. 油条试题答案：B23、患者李某，甲状腺手术术后采取半坐卧位的主要目的是 ( ) （单选题）A. 减轻局部出血B. 预防感染C. 避免疼痛D. 有利于伤口愈合试题答案：A24、止血带用于上肢时其压力控制在（单选题）A. 250～300mmHgB. 300～350mmHgC. 350～400mmHgD. 400～450mmHg试题答案：A25、肺部叩击时的方向正确的是（单选题）A. 由内向外、由上至下B. 由内向外、由下至上C. 由外向内、由上至下D. 由外向内、由下至上试题答案：D26、为患者灭除头虱时，常用的药液（单选题）A. 30%含酸百部酊剂B. 1%～4%碳酸氢钠溶液C. 2%～3%硼酸溶液D. 0.1%的醋酸溶液试题答案：A27、护理程序的步骤是（单选题）A. 计划、评估、诊断、实施、评价B. 评估、计划、诊断、实施、评价C. 评价、计划、诊断、实施、评估D. 评估、诊断、计划、实施、评价试题答案：D28、下列关于各种注射的定位法，叙述正确的是（单选题）A. 臀大肌注射法→髂嵴和尾骨联线的外1/3B. 皮内(ID)→前臂掌侧上段C. 皮下(H)→肩峰下2—3横指的三角肌处D. 臀中肌注射法→髂前上棘外侧三横指处试题答案：D29、潮式呼吸的特点是 ( ) （单选题）A. 呼吸缓浅，呼吸暂停，呼吸缓浅交替出现B. 呼吸缓浅，逐渐增快加深.再变缓浅，呼吸暂停，呼吸形态周而复始C. 呼吸缓浅，呼吸加深，呼吸暂停交替出现D. 呼吸缓浅，呼吸增快，呼吸暂停交替出现试题答案：B30、对维持血浆胶体渗透压、增加血容量及提高血压有显著效果的溶液（单选题）A. 10%葡萄糖溶液B. 0.9%氯化钠溶液C. 0.4%碳酸氢钠溶液D. 低分子右旋糖酐试题答案：D31、由于疾病而导致严重脱发，影响了自身仪表，患者会产生极大的心理负担甚至加重病情。
七年级数学下学期第6周周练试题试题
七年级数学下学期第六周周练习一、选择题(每一小题3分，一共30分)1．假如每盒圆珠笔有12支，售价18元，用y〔元〕表示圆珠笔的售价，x表示圆珠笔的支数，那么y与x之间的关系应该是〔〕A. y=12xB. y=18xC. y=23x D. y=32x2．变量x、y满足下面的关系，那么x，y之间用关系式表示为〔〕A. y=3xB. y=-3xC. y=-3xD. y=3x3. 小王利用计算机设计了一个程序，输入和输出的数据如下表：那么，当输入数据8时，输出的数据是〔〕A.861B.863C.865D.8674. 小明骑自行车上学，开场以正常速度匀速行驶，但行至中途自行车出了故障，只好停下来修车。
车修好后，因怕耽误上课，他比修车前加快了骑车速度匀速行驶。
下面是行驶路程s(米)关于时间是t(分)的函数图像，那么符合这个同学行驶情况的图像大致是〔〕5．在关系式y =3x +5中，以下说法：①x 是自变量，y 是因变量；②x 的数值可以任意选择；③y 是变量，它的值与x 无关；④用关系式表示的不能用图象表示；⑤y 与x 的关系还可以用列表法和图象法表示，其中正确的选项是〔〕A ．①②⑤ B．①②④ C．①③⑤ D ．①④⑤ 6．以下计算中，正确的个数有〔 〕①，③④⑤⑥A. 0个B. 1个C. 2个D. 3个 7．假设x 2＋kx ＋49 是一个完全平方式，那么k 的值是( ) A.3 B .±14 C. 6 D.±78.如图，ABCDE 是封闭折线，那么∠A +∠B +∠C +∠D +∠E 为( ) A.180° B.270° C.360° D.540°9．小高从家门口骑车去单位上班，先走平路到达点A ，再走上坡路到达点B ，最后走下坡路到达工作单位，所用的时间是与路程的关系如下图．下班后，假如他沿原路返回，且走平路、上坡路、下坡路的速度分别保持和上班时一致，那么他从单位到家门口需要的时间是是〔 〕A B C D(1)A BCE DA．12分钟 B．15分钟 C．25分钟 D．27分钟10. 如下图，将长方形纸片ABCD〔图①〕按如下步骤操作：〔1〕以过点A的直线为折痕折叠纸片，使点B恰好落在AD边上，折痕与BC边交于点E〔如图②〕；〔2〕以过点E的直线为折痕折叠纸片，使点A落在BC边上，折痕EF 交AD边于点F 〔如图③〕；〔3〕将纸片展平，那么∠AFE 的度数为〔〕°B．70°°D．72°题号 1 2 3 4 5 6 7 8 9 10 答案二、填空题〔每一小题4分，一共16分)11. 多边形内角和α与边数之间的关系是α=〔n－2〕×180゜，这个关系式中的变量是，常量〔不变的量〕是 .12. 某型号汽油的耗油量与相应金额的关系如下图，那么这种汽油的单价是每升元．13. 如下图的图象反映的过程是：小明从家去书店，又去取封信后马上回家，其中x表示时间是，y表示小明离他家的间隔，那么小明从回家的平均速度为千米∕时．14.某农场租用播种机播种小麦，在甲播种机播种2天后，又调来乙播种机参与播种，直至完成800亩的播种任务，播种亩数与天数之间的关系如下图，那么乙播种机参与播种的天数是天．耗油量（升）〔12题〕 〔13题〕 〔14题〕三、解答题：15.计算：〔每一小题5分，一共25分〕 〔1〕202132011()2--+--〔2〕3223223(3)(4)(2)m n n m n -⋅÷-〔3〕2222()()x xy y x xy y -+++ 〔4〕()()222323x x -+〔5〕()()2323x y x y -+---16．22464100a b a b +-++=，求21[(2)(2)()2(2)(2)]()2a b a b a b a b a b b +--+--+÷的值。
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要求：
1、请将各题剪下依次贴到相应作业本上，认真审题，用铅笔 在题上和图中标出条件，作出必要的图形（如波动图、振动图） ； 2、选择题需用一般方法分算题需要写出规范解题步骤并在相 应位置写出必要的计算过程。
答案：
1、C； 2、 3R； 3、BC； 4、 （1） 3， （2）没有（在 N 点入射角为 60° 大于临界角） ；
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郑州 101 中学 2014-2015 学年下期高二物理学案编写教师：霍凌宇
4、如图所示，三棱镜的横截面为直角三角形 ABC，∠A=30° ， ∠B=60° 。 一束平行于 AC 边的光线自 AB 边的 P 点射入三棱镜， 在 AC 边发生反射后从 BC 边的 M 点射出，若光线在 P 点的入射角 和在 M 点的折射角相等。 （1）求三棱镜的折射率； （2）在三棱镜的 AC 边是否有光 线透出？写出分析过程。(不考虑多次反射) 5、如图所示，P 是一束含有两种单色光的光线，沿图示方向射 向半圆形玻璃砖的圆心 O，折射后分成图中的 a、b 两束光线， 则下列说法中正确的是 A．玻璃对 a 光的折射率小于对 b 光的折射率 B．a 光频率小于 b 光频率 C．在玻璃砖中传播的时间 a 光比 b 光短 D．若让玻璃砖在纸面内绕 O 点逆时针转动，a 光先消失
郑州 101 中学 2014-2015 学年下期高二物理学案编写教师：霍凌宇
第六周每日一题
2015.4.12 1、如图所示，半圆形玻璃砖置于光屏 PQ 的左下方。一束白光 沿半径方向从 A 点射入玻璃砖，在 O 点发生反射和折射，折射 光在光屏上呈现七色光带。若入射点由 A 向 B 缓慢移动，并保持白光沿半径方 向入射到 O 点， 观察到各色光在光屏上 陆续消失。在光带未完全消失之前，反 射光的强度变化以及光屏上最先消失 的光分别是 A．减弱，紫光 B．减弱，红光 C．增强，紫光 D．增强，红光 2、一半径为 R 半圆形玻璃砖，玻璃的折射率为 3，AB 为其直 径，O 为圆心，一束宽度恰等于玻璃砖半径的单色平行光束垂 直于 AB 从空气射入玻璃砖，其中心光 线 P 通过 O 点，如图所示，M、N 为光束 边界光线。求 M、N 射出玻璃砖后的相交 点距 O 点的距离。 3、 （多选）如图所示，S1、S2 是两个相干波源，它们振动同步且 振幅相同。实线和虚线分别表示在某一时 刻它们所发出的波的波峰和波谷。关于图中 所标的 a、b、c、d 四点，则 A．该时刻 a 质点振动最弱，b、c 质点振动最强，d 质点振动既 不是最强也不是最弱 B．该时刻 a 质点振动最弱，b、c、d 质点振动都最强 C．a 质点的振动始终是最弱的，b、c、d 质点的振动始终是最 强的 D．再过 T/4 后的时刻 a、b、c 三个质点都将处于各自的平衡位 置，因此振动最弱
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郑州 101 中学 2014-2015 学年下期高二物理学案编写教师：霍凌宇
5、D。
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