2012年SIFE全国赛PPT英文分享版@Simon阿文

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2012年英语四级作文范文ppt

The Power of Perseverance: A Journey toSuccessIn the journey of life, perseverance is often the key to unlocking success. This statement resonates deeply with me, as I believe that success is not merely the result of talent or intelligence, but rather a product of our determination and resilience in the face of challenges.As I reflect on my own life experiences, I remember a particularly challenging moment when I was preparing for the CET-4 exam. The language barrier was a significant hurdle, and the pressure to perform well was immense. However, it was my perseverance that helped me overcome these obstacles. I committed myself to regular practice, dedicating hours each day to improving my language skills.I persevered despite the setbacks and failures, learning from each mistake and using it as a stepping stone to success.The power of perseverance is further exemplified by the stories of successful individuals from diverse fields. Whether it's a sports champion who trains relentlessly to achieve excellence, or a scientist who spends yearsconducting research to make a groundbreaking discovery, they all share a common trait: perseverance. They understand that success does not come easily, and that it requires hard work, dedication, and the ability to stay focused in the face of adversity.Moreover, perseverance instills in us a sense of purpose and direction. When we persevere, we are morelikely to set clear goals and work towards them with determination. This focus and clarity give us a sense of control over our own destiny, allowing us to shape our future according to our vision and aspirations.However, it's important to note that perseverance does not mean stubbornly sticking to one path regardless of obstacles. Instead, it involves a flexible and adaptive approach, where we are willing to learn from our mistakes, reevaluate our goals, and adjust our strategies as needed. This balance between perseverance and flexibility iscrucial for sustained success.In conclusion, perseverance is a critical component of success. It is the driving force that propels us forward in the face of challenges, helps us learn from our mistakes,and enables us to achieve our goals. As we embark on our respective journeys, let us remember that with perseverance, no dream is too big, and no goal is unattainable.**毅力的力量：通往成功的旅程**在人生的旅途中，毅力常常是通往成功的关键。

2012年欧洲冠军联赛决赛-拜仁慕尼黑VS切尔西-英语课堂演讲PPT

FOOTBALL
5. 24.2012. By Ben
By Phil McNulty BBC chief football writer at Allianz Arena
CHAMPION CHELSEA
Chelsea stunned Bayern Munich in a dramatic penalty shoot-out at the Allianz Arena to win the Champions League for the first time.
Cech made a finger-tip save
Thomas Mueller's late header put Bayern on the brink of victory on home territory 1-0
Drogba levelled things up with a bullet header at the death before coolly converting the decisive spot-kick. The score was 1-1。
Champions League final shoot-out as it happened
• • • • • • • • • • • Champions League final shoot-out as it happened Phillip Lahm (Bayern) scored 1-0 Juan Mata (Chelsea) missed 1-0 Mario Gomez (Bayern) scored 2-0 David Luiz (Chelsea) scored 2-1 Manuel Neuer (Bayern) scored 3-1 Frank Lampard (Chelsea) scored 3-2 Ivica Olic (Bayern) missed 3-2 Ashley Cole (Chelsea) scored 3-3 Bastian Schweinsteiger (Bayern) missed 3-3 Didier Drogba (Chelsea) scored 3-4

2012年全国大学生英语竞赛C类决赛赛卷(文字版)(原创)

2012年全国大学生英语竞赛2012 National English Contest for College StudentsC类决赛赛卷(Level C-Final)Part I Listening Comprehension (30 marks)Part ⅡVocabulary and Structure (15 marks)There are 15 incomplete sentences in this part. For each blank 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 through the centre.31. The president’s education speeches contained_______ the tongue leading to a public confusion over education policy.A. a slide ofB. a slip ofC. a skip ofD. a glide of32. The word “right ”, in most language, is usually connected _______ the meaning of “correct”, whereas the words associate _______ “left”, generally have ne gative meanings.A. to; withB. with; toC. to; toD. with; with33. Gas price rose 4％in April, a _______ rise but the smallest since January.A. mightB. severeC. steepD. massive34. It seems a very simple thing to tell the truth, but beyond all questions, there is nothing _______ lying.A. half so easy asB. so half easy asC. half easy asD. so easy as half35. _______ until recently, people who are left handed have been considered abnormal.A. UpB. UnlessD. Not36. Sorry about the loss. But it will give you some relief if your house is _______ against fire.A. assuredB. ensuredC. insuredD. pledged37. When _______ in a downpour without an umbrella or a raincoat, most people would pick up their pace.A. sunkB. caughtC. plungedD. grabbed38. In 1993, V.S.Naipoul was awarded the David Cohen British Literature Prize in _______ of his lifetime’s achievement.A. identificationB. acquaintanceC. recognitionD. perspective39. Many linguists _______ that our highly evolved brain provided us with innate language Ability not found in lower organism.A.SuggestB.C laimC.P romiseD.convince40. I’m in a slightly _______ position in that he is not arriving until 12:00which is 3 hours late.A. tightB. weirdC. awesomeD. awkward41. Tactless she may be, but ungrateful _______ think her.A. should not youB. should you notC. not should youD. you should not42. More than 30 people died in the train accident, most of _______are children.A. whichB. themC. whomD. that43. He admits that his team really _______ him to play a role of responsibility.A. look forward toB. look down onC. look up to44. —Do you know the students have been protesting against the increased tuiton?—I’ve heart about the protest, but _______A.I’ve joined in it to support the students.B.I don’t see any good it will do.C.I do know the reason for it.D.I think it’ll be a great success.45.—I hear you are a journalist now, Paul. That must be exciting.—_______ most of the time. But like all jobs, it has its disadvantages.A.It’s boringB.It’s a piece of cakeC.It has drawbacksD.It’s a buzzPart ⅢCloze (10 marks)Read the following passage and fill in each blank with one word. Filling in the following blanks in one of the three ways: according to the context, by using the correct form of the given word, or by using the given letter(s) of the word. Remember to write the answers on the answer sheet.There is a phenomenon that sociologists call reference anxiety —or，more popularly, keeping up with the (46) Jo_______. According to that thinking, most people judge their possessions in comparison wit h others’. People tend not to ask themselves, “Does my house meet my needs?”(47) Ins_______ they ask, “Is my house nicer than my neighbor’s?” If your two-bedroom house is surrounded by three and four-bedroom house, with some (48) ar_______ the corner doing a tear-down to build a McMansion, your reference anxiety may rise. Suddenly that two-bedroom house-one that your grandparents might have considered quite nice, even luxurious –doesn’t seem enough. And so the money you spend on it stops (49) _______ (provide) you with a sense of wellbeing.Americans’soaring reference anxiety is a product of the widening gap in income (50) _______ (distribute). In other words, the rich are getting richer faster, and the rest of the population are none too happy about it. During much of the U.S. history, the (51) _______ (major) lived in small towns or urban areas where conditions for most people were approximately the same-hence, low level anxiety. Also, most people knew relatively little about those who were living higher on the hog.But in the past few (53)de______ , new economy forces have changed all that. Rapid growth in income for the top 5 percent of households has brought (54) _______ a substantial cohort of people who live notably better than the middle class does, amplifying our reference anxiety. That wealthier minority is occupying ever-larger homes and spending more on each change of clothes when the middle is doing O.K. In nations with high levels of income equality like the Scandinavian countries, well-being tends to be higher than in nations with unequal wealth distribution such as the United States.Part ⅣReading Comprehension (40 marks)Read the following passages. Each passage is followed by several questions. Respond to the questions using information from the passage. Remember to write the answers on the answer sheet.Section A (10 marks)Question 56—60 are based on the following passage.Several research groups in the United States are conducting genetic research aimed at retarding aging. If the breakthroughs of recent years are anything to go by, it’s likely that we will see several-fold longevity increases in mice within the next decade or so. Already such genetic manipulation has increased by almost 50％the life span of flies. Results are also promising in mammals; scientist have extended longevity in mice by 50％through genetic interventions. Achieving similar results in humans will be harder. Scientists have already identified genes that appear to accelerate human aging, but thy have yet to find genes with opposite effect. But with the sequencing of the human genome, we are now in a better position to find out more about aging in humans as well as animals.For those who cannot wait there is one method available today than might delay human aging: caloric restriction. This simply means a diet with few calories. Experiments have shown longevity increases of more than 50％in certain mammals that follow such diets. Most people, however , feel the secondary effects of this outweigh the benefits. After all, what is the point of living longer if you cannot enjoy life? If science is to extend human longevity, it will have to do so by extending the duration of human life in age —related disability. The extra years of life must allow future grandparents to enjoy life, not just life.Although some scientist argues that aging will never be cured and our grandparents will continue to fit our stereotypes, many others remain confident that we will soon learn how to modulate the human aging process. “I believe our generation is the first to be able to map a possible route to in dividual immortality,” says William Haseltine, CEO of Human Genome Sciences Inc. in Rockville, Maryland. If a therapy could slow human aging by 50％，for instance, we could have 30 or 40 more year of life. I n that time, new discoveries could be made that would allow us to live even longer, and the cycle could continue until a cure for aging is discovered. “It’s possible that some people alive now may still be alive 400 years from now,” claims gerontologist S. Michal Jazwinski of Louisiana State of University Health Sciences Center. But what could be consequences of extending human longevity or finding a real cure for aging?Question 56—60Complete the summary with words from the passage, changing the form where necessary, with only one word for each blank.Section B (10 marks)Question 61—65 are based on the following passageNo matter how carefully you plan a trip with a friend, or family member, there will probably be conflicts along the way. Even after the dates, destination and length of the trip are decided, there’s still the chance that problems could happen on the trip.Here are a few tips to help you solve the problems that may come up between you and your travel company:Plan the trip together: Sometimes one person take the leads and plan the trip to fit his or her interests. Planning together allow for a more diverse an balanced vacation. Some people want to walk; some people would rather use public transportation. So it’s important to find out how compatible you are in term of everything concerned.Find out about lifestyle:Differences in lifestyle can be challenging if they haven’t been discussed in advance. There’s nothing worse than being in the room and awake at 6:00 a.m. When your companion wants to sleep until noon. Sleep patterns can be very disruptive to people that don’t have the same pattern. The same can be said for dietary and other restrictions. Knowing those differences in advance helps people adapt to each other more quickly.Be aware of coping strategies: Ask questions and use your understanding of your companion’s coping strategies—how they may respond to stressful situations. You can ask your travel company about his/her best and worst trips. What happened? How did that person respond? Knowing a little about how your companion deals with difficult situation can be helpful.Compromise: Try to compromise in order to have a good time. Agree to disagree. Do you really want to use your energy feeling anger on your vacation when you should be relaxing and enjoying it? But travel journals for yourself and your travel partners. Writing in journals can be a way to reflect on the trip to relieve some of the frustration that may come up.Take a break: Split up when tensions are high and your interests are different. Be sure to set a time and meeting place and have a backup meeting set in case of an unforeseen delay. People tend to feel like they have to stick together when they are together on a trip. But anybody with someone 24 hours a day needs a break from the other person.Question 61—63Decide whether the following statements are true(T) or false(F) according to the passage.61. This passage aims to help travelers solve problems between them and their travel partners.62. Lifestyle differences can cause travel problems because all people enjoy sleeping till noon when on vacation.63. Even though your travel interests are different, you must always stay together with your travel partners.Question 64—65Answer the following questions according to the passage.64.Why do people have to ask their travel companion about his/her best and worst trips.65. Which way might help relieve the frustration that may come up?Section C (10 marks)Question 66—70 are based on the following passage.Knowing that Mrs. Mallard was afflicted with a heart disease, great care was taken to break to her as gently as possible the news of her husband’s death.She did not hear the story as many woman have heart the same, with a paralyzed inability to accept its significance. She wept at once, with sudden, wild abandonment, in her sister’s arms. When the storm of grief had passed she went away to her room alone. She refused to have anyone to follow her.There stood, facing the open windows, a comfortable, roomy armchair. Into this she sank, pressed down by a physical exhaustion that filled her body and seemed to reach into her soul.She sat with her head thrown back upon the cushion of the chair, quite motionless, expect when a sob come up into her throat and shook her, as a child who has cried itself to sleep continues to sob in its dreams.She was young, with a fair, calm face, whose lines indicated repression and even a certain strength. But now there was a dull stare in her eyes, whose gaze was fixed away off in the distance on a patch of blue sky. It was not a glance of reflection, but rather indicated a suspension of a intelligent thought.There was something coming to her and she was waiting for it, fearfully. What was it? She did not know; it was too subtle and elusive to name. But she felt it, creeping out of the sky, reaching toward her through the wounds, the scents, the color that filled the air.Now her bosom rose and fell with excitement. She was beginning to realize this thing that was approaching to possess her, and she was struggling to beat it back with her will, as powerless as her two white slender hands would have been..When she abandoned herself a little whispered word escaped her sighted parted lips. She said it over and over under her breath, “free, free, free! ” The empty stare and the look of terror that had followed it went from her eyes. They stayed sharp and bright. Her pulses beat fast, and the coursing blood warmed and relaxed every inch of her body.She did not stop to ask if it were or were not a monstrous joy that held her. A clear and exalted perception enabled her to dismiss the suggestion as of little importance.She knew that she would weep again when she saw the kind, tender hands folded in death; the face that had never looked except with love upon her, fixed and gray and dead. But she saw beyond that bitter moment a long procession of years to come that would belong to her absolutely. And she opened and spread her arms out to them in welcome.Question 66—68Complete the following sentences with information given in the passage in amaximum of 2 words for each blank.66. Most women were shocked into a ______ on hearing the news of their husbands’ death, but Mrs. Mallard was not.67. When returning to her room, Mrs. Mallard was pressed down by _______ both physically and mentally.68. Mrs. Mallard’s dull stare indicated a _______ of deep thinking rather than a sign of contemplation.Question 69—70Choose the best answer according to the passage.69. What was Mrs. Mallard’s first reaction on hearing her husband’s death?A. She pulled herself together with the help of her sister.B. She stayed in her room and refused to meet anyone.C. She abandoned herself into grief for a while.D. She couldn’t stop weeping and crying.70. How did Mrs. Mallard feel towards her h usband’s death at the end.A. Bitter but relieved.B. Fearful but relaxed.C. Dull and desperate.D. Calm and suspicious.Section D (10 marks)Question 71—75 are based on the following passageNo creature can stride as human beings. They are not physically designed to support and balance a vertical body balanced on two long lower limbs, propelled forward by a foot engineered exclusively for body support and forward propulsion and to do so with a stride at high-speed locomotion. While other bipeds walk in a similar fashion, human walk is unique. Bipedalism itself offers no comparison with the distinctive human gait form. And, significantly, no other biped can actually cover more than a tiny fraction of the walking distance that can be sustained by humans.Striding requires a special design of hip, knee, an ankle joints, plus an arched foot, plus long lower-limb bones. Those “finishing touches” demanded extended evolutionary time. Striding provided numerous advantages over the simple stepping gait. For example, the ability to cover twice the distance with the same number of steps is a definite survival advantage. It also added much speed to running, more height to jumping.None of this would have been possible without, first, a foot equipped to support and balance an erect body and to produce the leverage necessary to propel the body forward in locomotion. The ape foot was not suited for this. A new kind of foot was essential if those hominids were to become full-scale bipeds. Indeed a pair of human feet has one-fourth of all the body’s 206 bones and 244 joints. Why this extraordinary number of bones and joints concentrated in such a small part of the body? (74) Because the intricate network of the many different parts required not only for supporting and balancing a heavy superstructure but to enable the multiple motions andactions, hundreds or thousands of times daily. No other part of the body comes even close to the amount and degree of stresses imposed on it.The human foot had to go through an extensive evolutionary development in which it underwent enormous design changes in cohering its 28 bones, 37 joints and 107 ligaments, and 32 muscles and tendons to adapt to the body weight and numerous torsions. (75) In fact, it probably wasn’t until only about 400,000 years ago that early humans were fully striding, the final touch of human gait. Orthopedist Philip J. Mayer writes in the Orthopedist Review: “The development of a true stride on an orthopedic foot was the most crucial of all the steps of human evolutions.” Nature had perhaps never undertaken an anatomical engineering project of such complexity.Question 71—73Answer the following questions according to the passage.71. What’s the differences between humans and other bipeds regarding walkin g distance?72. Why is the human foot equipped the way it is?73.What kind of evolution has the human foot undergone?Question 74—75Translate the underlined sentences in the passage into Chinese.(74) Because the intricate network of the many different parts required not only for supporting and balancing a heavy superstructure but to enable the multiple motions and actions, hundreds or thousands of times daily.(75) In fact, it probably wasn’t until only about 400,000 years ago that early humans were full y striding, the final touch of human gait.Part ⅤTranslation (10 marks)Translate the following sentences into English, using the words given in the brackets. Remember to write your answers on the Answer Sheet.76. 有人建议，中国所有的博物馆都应对中小学生免费开放，使他们有更多机会获得广博的知识。

英语2012世界末日ppt

Last
question
• Do you want to buy a Noah‘s Ark （诺亚方舟） ticket if you have enough money？
Why are there 2012 saying?
One of the reasons is that in recent years meteorological disasters（气象灾害）occurred continuously.
Good afternoon everyone
Maybe some pessimists ['pesimist] （悲观主义者）would say
2012
Today is March 16, 2011
Coming soon！
There are many prophesies prophesies （预言） ['prɑfə,saɪ] about 2012
We have only one earth, so it is up to us to make it better！
The end
Thank you for listening
So whether we should do something to protect our fragile earth?
The answer is
And what can we do ?
• For example • Use less disposable tableware（一次性餐具） • Close the faucet ['fɔ:sit] （水龙头）when you don’t use it • Plant more trees • And so on

2012欧冠英文PPt

Who will be the 2012 Champions League winner
Let's wait and see
Thank you
First round Chelsea VS Barcelona 1 – 0
First round Bayern München VS RealMadrid 2 - 1
Second round Barcelona VS Chelsea 2 – 2
Second round Real Madrid VS Bayern München 2 - 1
Bayern München
Bayern Munich Football Club is a football club in the city of Munich, Germany, the existing competition in the German Bundesliga. Germany and Europe's most successful and popular football club, won a total of 22 German top football league champion andBarcelona
FC Barcelona is one of the world's most famous football club
Real Madrid
Real Madrid football club, founded on March 6, 1902, in the Spanish capital of Madridfootball club, Real Madrid have won ninetimes European Cup titles, 31 Spanish La Liga champions and 18 of the Spanish King's Cup champion.

2012年全国数学建模大赛A题获奖论文英文版English

The Evaluation of WinesSummaryThe general way is to employ a number of qualified wine critics to taste the wi nes when needing to determine the quality of the wines. But the grapes of making wines are able to influence the quality of the wines in acertain extent.In Task 1, we firstly solve the arithmetic mean to the two groups of the same s ample wine ratings of Appendix I of the wine critic Members , then prove and verif y two groups Tasting ratings results have the existence of significant differences using SPSS software by paired T test ,finally solve the second assessment wine grou p more reliable by analysis of variance method.In Task 2, by an accurate analysis of the impact of the physical and•chemic al indicators of wine grape and the quality of wine to wine grapes ,we extract the pri ncipal component that embodies the basic characteristics of the object of study, so w e can reduce redundancy, and reduce the dimension of the physical and chemical in dicators of wine grapes, which of the various samples conduct a comprehensive e valuation and ranking grapes .Red grapes into four categories on this basis, the thr ee levels of white grape.In Task 3, we analyze the correlation degree of both using the typical correlation, it is concluded that both has the very high correlation, that is, the better the quality of wine grape, the higher the quality of the wine.In Task 4,we again use SPSS software to visually show the correlation coefficient between the three study and concluded that the impact on wine quality is more than two, there are other factors not taken into account.Through the Third Schedule aromatic substances added argumentation analysis, we have confirmed the larger factors exist .Physical and chemical indicators of wine grapes and wine can not be very accurate assessment of the quality of the wine, you can consider the introduction of a sensory analysis of taste and smell. Keywords:Paired samples T-test Principal Component Analysis Canonical- correlation analysis Path AnalysisIntroductionThe general way is to employ a number of qualified wine critics to tast the wines when needing to determine the quality of the wines. First,each tasting member in the taste of the wine samples give rates in accordance with the classification index, then sum the total scores to determine the quality of the wines. Quality of wine grape has a direct bearing with the quality of the wines. the physical and chemical indicators of wine grape and the wine can reflect the quality of the wine and grape to some extent. Following issues need to be addressed :1. Analysis in Annex 1 two groups of evaluation of wine member of the evaluation results whether there were significant differences of both, which a set of results more reliable.2. According to the physical and chemical indicators of the wine grape and wine quality, how about were these wine grape classified ?3. Analyze the link between the physical and chemical indicators of wine grapes and wine.4. Analyze the physical and chemical index of the wine grape and wine to the influence on the quality of wine, and demonstrate the ability to use the physical and chemical indicators of grape and wine to evaluate the quality of the wine.The analysis of issueBackgroundThe high-quality wines are popular in 2012. It ’s seems to be urgent to study that the main raw materials - whether the quality of the red grapes and white grapes of the wine is good or bad a decisive role. Therefore analyzed the relationship between wines ’ and grapes ’ quality and physical and chemical indicators over thirty kinds of physical and chemical indicators of grape and wine.Assumptions1 Each tasting wine samples from an approximate normal distribution of the distribution of the overall ；2 Tasting members are normal senses, there is not much difference ；3 Annex all the physical and chemical indicators can be representative of the nature of the study, omission of the object of study have a significant impact on physical and chemical indicators ；Symbolic representationα： Significant parameters ；W ： Rejection region range ；m ： The number of indicator variables ； 12,,...,,m x x x ： Evaluation object ；i j a⋅ Standardized index value ； ,j j s μ： Sample mean and sample standard deviation of the j-th indicator ； R : Correlation coefficient matrix ； A : Standardized matrix; (1,2,,)i i m λ= Eigenvalue ；(1,2,,)i e i m = Eigenvectors ；1V Eigenvectors of the correlation coefficient matrix of red wine grapes; 1D Red wine grape correlation coefficient matrix eigenvalue;2V White wine grape correlation coefficient matrix of eigenvectors; 2D Eigenvalues of the correlation matrix of white wine grapes;12,,,p λλλ The characteristic value corresponding to the first, second ...... p maincomponen ；p The number of indicators in the wine ；q The number of indicators of the wine grape ；11R The coefficient matrix of the first set of variables ；22R The coefficient matrix of the second set of variables ；11'R 、22'R The correlation coefficient of the first set of variables and the second setof variables ；1Z Comprehensive evaluation function of the principal component of red grape wine grape ；2Z Comprehensive evaluation function of the principal components of the white grape wine grape ；,1,2,...,28j x j = Transverse section of physical and chemical indicators in accordance with Annex II to turn on behalf of the 27-level indicators of the total amino acids, proteins, VC, ......, as well as wine quality and wine quality ratings;,1,2,...,14,15;i y i = Wine quality, peel quality juice rate (%), respectively, in turn, said, stems ratio (%), one hundred quality / g, ear quality / g dry matter content g/100g solid acid than titratable acidity (g/l), PH value, soluble solids g/l, the reducing sugars g/L, total sugar g/L, and flavonols (mg/kg), resveratrol (mg/kg) and other physical and chemical indicators ；Model establishments and solutionsTask1：Analysis in Annex 1 two groups of evaluation of wine member of the evaluationresults whether there were significant differences of both, which a set of results more reliable.To review the wine member of the evaluation result, significant difference and credibility evaluation calculation methods are varied ，mainly including Sensory evaluation of significant differences, based on the evaluation of the credibility of the Analytic Hierarchy Process, discriminant analysis, T value analysis, F value analysis,etc.Firstly, in accordance with the principle of the score with the same sample that 10 Tasting 'average score obtained in Schedule I of the first and second sets each red and white wine sample tasting ratings. Are listed below:two tables of very difference.Establishments of Model 11-1 For the evaluation of red wine :First of all by the data observation, it is known that on the whole, in view of the same sample wine in the first group and the second group of score difference are more prominent，therefore the relationship between the two with a Broken line vividly expressed. From the sensory ,image display greater differences in two groups Tasting set of evaluation criteria, shown in the following figure line chart:Figure 1 the overall rating of FirstSet and SecondSet for each of the red wine samplesThen, the overall rating results of the two rating wine group in a significant level 0.05α= are made a significant difference test. Firstly, each wine sample is selected from the large number of the same kind of samples wine from testing samples ,sample population can be approximated as a normal distribution . Secondly, Of all samples tested constitute 27 paired samples tested overall. Therefore we paired samples T-test two samples. The results are as follows:Table 3 The paired samples T-test the first and second Sets(The red)Inspection objectthe difference with 95% confidence interval tNPLowerlimitCeilingFirst and Second0.41569 4.66579 2.458 26 0.021In fact, P<0.05α=and 1/2,0.975,262.458 2.0555n t t α->==, the result falls into Rejection region {}1/2W t t α-=≥.Therefore the overall evaluation criteria of the members of the twogroups of wine critic has a significant difference.Which is trustworthier : The smaller the v ariance,the trustworthier the group’s evaluate ,when we study a single kind of wine sample. In that ,we compare the variance of these two groups to define the trustworthier group which have a smaller variance .Table 4 The credibility test for red wineWine sample sFirstSet ’s Variance Second’sVarianceThetrustworthiergroupWine sample sFirstSet ’s Variance Second’sVarianceThetrustworthiergroup1 236.1 736.9 一 15 770.1 372.1 二2 358.1 146 二 16 112.9 180.9 一3 412.4 276.4 二 17 792.1 82.5 二 4 972.4 371.6 二 18 424.9 452.4 一which is the better,the ratio of the two groups for 8:19;therefore the Second is trustworthier.1 -1 For the evaluation of white wine :Firstly,in a word,only studying the same sample wine,two groups are in small diference., therefore the relationship between the two with a Broken line vividly expressed.Said out as follows:Figure 2 the overall rating of FirstSet and SecondSet for each of the white wine samples Because wo use the same way to answer about the white wines’ question , There is no longer the detailed solution process .In summary,the evaluation results of both show significant differences,and the Second is trustworthier wherever in the red wines or the white wines. At the same time ,we find a standard to measure the quality of wine—the tasing ratings of the trustworthier sommeliers. Task2: According to the physical and chemical indicators of the wine grape and wine quality, how about were these wine grape classified ?Analysis of Model 2:There are a lot of the physical and chemical indicators of wine grapes that include more than 30 level indicators and some secondary indicators in Annex 2.we hope that many high correlation variables in wine grape physicochemical indicators are converted into mutually independent or uncorrelated variables,to choose only a small amount of indicators that can reflect most of the nature of the object of study. There are so-called Principal component which can be used to explain the research object indicators.2-1 The Step of using Principal Component Analisis way:(1) Standardize raw dataThere are m indicator variables that can be used to Principal Component Analisis way,namedas 12,,...,.m x x x There are all (1n or )2n evaluation objects.In there ,128,27m n ==,and 228n =( 1n represents the red wine as a research object, 2nrepresents the white wine as aresearch object ). The value of the j th indicator of the ith evaluation object is i j a ⋅,thereforewe gain the initial matrix of the object of study:1111m n n m a a A a a ⋅⋅⋅⋅⎛⎫ ⎪= ⎪ ⎪⎝⎭ ，The value of each indicator is converted to a standardized indicator value.As follows:,1,2,...,;1,2,...,,i j i i j ja ai n j m s μ⋅⋅-=== Among ：11,1,2,...,,n i i j j i a s j m n μ⋅====∑At the same time,j and j srespectively is the sample’s mean and standard deviation Correspondingly ,1,2,...,j j j jx xj m s μ-==It ’s a standardized indicator variable.（2）Calculting the Correlation coefficient matrix R: the Correlation coefficient matrix()i j m n R r ⋅⨯=11122122212m m m m m m m r r r r r r R r r r ⋅⋅⋅⋅⋅⋅⋅⋅⋅⎡⎤⎢⎥⎢⎥=⎢⎥⎢⎥⎣⎦ TR A A =*，among ： A represents A’s standardized matrix .By nature that R is a realsymmetric matrix （j i i j r r ⋅⋅=r ij =r ji ），therefore we only need to calculate on the upper triangle element or lower triangular elements to seek R . The Correlation coefficient matrix of the red wine grapes is R1,and the Correlation coefficient matrix of the white is R2. Specific data, see Annex 1.0 and Annex 3.0.（3）Calculating eigenvalues and eigenvectorsFirstly , we have solved the characteristic equation 0=-R I λ. We usually obtain eigenvalues (1,2,,)i i m λ= by Jacobi method , then arrange its in order of size 12,0m λλλ≥≥≥≥Secondly ，we respectively obtain the eigenvector (1,2,,)i e i m = corresponding to theeigenvalue i λ. Here is a requirement ,means i e =1,211mijj e ==∑,of which ij e represents the j-th component of the vector i e .The eigenvector V1 and eigenvalue D1 of the red wine grapes’ Correlation coefficient matrix , see Annex 2.0.The Characteristic roots of red wine grapes D1 Sequence :-0.0000 0.0000 0.0016 0.0058 0.0112 0.0156 0.0299 0.0504 0.0652 0.0826 0.1764 0.2025 0.2275 0.2350 0.3019 0.3712 0.5499 0.6844 0.7307 0.8076 0.9969 1.2228 1.5217 1.9934 2.8682 3.2615 4.7702 6.8158The eigenvector V2 and eigenvalue D2 of the white wine grapes’ Correlation coefficient matrix , see Annex 4.0.The Characteristic roots of white wine grapes D2 Sequence :-0.0000 0.0008 0.0026 0.0060 0.0250 0.0441 0.0634 0.0790 0.0953 0.1352 0.2719 0.3142 0.3156 0.3798 0.4458 0.6326 0.7267 0.8919 0.9663 1.0753 1.2937 1.4996 1.6175 1.7869 2.0894 2.9810 4.6623 5.5981(4)Calculation of the contribution rate and cumulative contribution rate of the main componentsThe contribution rate of main component i z :1(1,2,,)imkk i m λλ==∑The cumulative contribution rate :11(1,2,,)ikk mkk i m λλ===∑∑We generally take the characteristic values of 85-95% of the cumulatiive contribution rate corresponding to 1-st,2-nd,…,p-th(p≤m) main cpmponent.2-2 The results of principal component analysis :The eigenvalues 123,,,.....p λλλλwhose accumulative contribution rate of 85-95% can be generally selected as principal component parameters . According to theconclusion of the Principal Component Analysis , whenever in red wine or the white wine, the quality of wine is regarded as the first principal component. This shows that the quality of the evaluation of the grade of wine grapes wine share an important role .In addition ,we also gain:1. In the system which the red wine grapes act as study ,the effect of the principal component analysis of the first eleven characteristic roots whose cumulative contribution rate achieves 90% above is very great . Therefore we choose the first fourteen principal components []121314,,...,,y y y yto run a comprehensive evaluation. The contributions of fourteen principal component variables are the weight tobuild principal component comprehensive evaluation model of the red wine grapes , namly:345678910111213112140.116482559y +0.10243608y 0.0711931110.054346623+0.043671585y +0.035603699y +0.02884296y +0.026096522y +0.024442944y +0.019639356y +0.0.243422980.17036401325719y 894y 0.010782181y Z y y y ++++=+Therefore, we put all the objects corresponding to factors of the various principal components into the model ,to gain the comprehensive evaluation and sort results of the red wine grapes.2-3 ConclutionFor the red wine grapes , there are quite difference to various samples of grapes , therefore the red wine grape samples are divided into four grades: "Premium", "Great", "Qualified" and "Bad" .No. 26 sample is classified as "Premium" level by visible quality and particularly high comprehensive evaluation ;No. 17,24,5, and 20 are classified as "Great" level by great quality and high comprehensive evaluation ;No. 23,25,10,12,18,27,6,8,14,9,19,and sample is classified as "Qualified" level ;And , No. 15,3,13,4,21,7,11,2,22,and 16 sample are only classified as "Bad" , because their evaluateons are less than 60.For the white wine grapes,…Task3:Analyze the link between the physical and chemical indicators of wine grapes and wine.3-1 Model preparation :Introduced the idea of canonical correlation analysis In task 3 , we study the correlation relationship between 27 physical and chemical indicators of wine grapes ,10 of the red wines and 9 of the white wines ; the method which is similar to the main component is used, to respectively find the linear combination of the two sets of variables.Can make the number of variables to simplify, and can achieve the purpose of analysis correlation.3-2 Modeling steps :一、According to the purpose of the analysis to establish the original matrixAmong: p is the number of indicators in the wines, q is the wine grape number of indicators11111111p q n np n nq x x y y x x y y ⎡⎤⎢⎥⎢⎥⎢⎥⎣⎦；二、Standardization of the original data , and calculating a correlation coefficient matrix11212122R R R R R ⎡⎤=⎢⎥⎣⎦Among: 11R ，22R respectively is the correlation coefficient matrix of the first set ofvariables and a second set of variables .三、Seeking canonical correlation coefficient and canonical variablesCalculate the eigenvalues and eigenvectors of the matrix A and B ，to gain the canonical correlation coefficient and canonical variables.Among:1111122221A R R R R --= ,1122211112B R R R R --=.四、Making canonical aorrelation analysis by using SPSS,to analysis of the link between the physical and chemical indicators of the wine grape and wine.The first step, the original data entry wine grapes and wines .As follows : X1，X2， X3 ，X4 ，X5 respectively represents Anthocyanin ,Tannin, Total phenolic , Wine total flavonoids , DPPH half inhibition volume ; Y1 ，Y2 ，Y3 …Y16 respectively represents the original data of the wine grapes of Annex II (Vertical indicators from the total amino acids ). Due to the limited space here is only part of the data is given. Detailed data see Annex Table 5.0(redpu.xls).Run in SPSS results are as follows:between the various indicators are small.If the correlation coefficient of the two indicators, two indicators may reflect the same ,and you can consider the merger.Analyze the physical and chemical index of the wine grape and wine to the influence on the quality of wine, and demonstrate the ability to use the physical and chemical indicators of grape and wine to evaluate the quality of the wine.4-1 The idea of Model 4:In order to analysis of wine grape and wine physical and chemical index to the influence on the quality of wine , we introduce linear regression theory to realize size analysis method . Using the Path Analysis on the basis of multiple regression , correlation coefficient iy r is decomposed into the direct path coefficients and indirect path coefficients .Path Analysis of the theory has been proved that any simple Correlation coefficient (iy r)between an independent variable i x and dependent variable y= Direct path (iy P)coefficient between x and y+ Indirect path coefficients of all the i x and y;Indirect path coefficients ibetween an independent variable any i x and dependent variable any y=Correlation coefficient (iy r)×Path coefficients (jy p) .Making Path Analysis process, it is generally believed that the most difficult part to calculate is the path coefficients. In fact , the path coefficients that we need to can be obtained by liner regression calculation . Then Indirect path coefficients can be multiplied by the correlation coefficient .4-2Problem-solving steps :4.2-1Data entryStart SPSS program, data input SPSS，name of each variable, andset the variable label.Wine quality is acted as the dependent variable y, and the physical and chemical indicators of the wine grape and wine including Anthocyanins, Tannins, Total Phenols, Wine Total Flavonoids, Resveratrol,Trans polydatin,Cis polydatin,Trans-resveratrol,Cis-resveratrol,DPPH half inhibition volume,and Color were the independent variables x1, x2, x3,x4,x5,x6,x7,x8,x9,x10.4.2-2Normality test on the dependent variable yFigure 3y s Standard Q-Q diagramStrengths and Weaknesses1.The strengths of model(1) The model established by the questions one to four are in strict theory based on analysis derived，comparing theoretical calculations with actual background, we have amended ,therefore it makes model more reasonable.(2) The use of paired samples T-test makes the results more reliable . This paper originality is very strong，because of the most of the models in the article derived and established strictly.(3) All calculations are used to specialized mathematical software and processing large amounts of data, such conclusions credibility is higher.We quantitative analysis many influencing factors that model involves, to make the paper more persuasive.2.The weaknesses of modelIn questionI and II ,due to the choice of the numerical inevitably produce a slight error and the complexity of factors affect ,so the calculation results inevitably produce certain error. References[1] Dongyan Chen , Dongmei Li , Shuzhong Wang , Mathematical Model [M].Beijing:Science Press,2007[2] Fengqiu Liu , Shanqiang Li , Zuobao Cao, Mathematical experiment [M].Harbin: HarbinInstitute of Technology Press,2010[3] Shisong Mao,Yiming Cheng,Xiaolong Pu, Probability theory and mathematical statisticstutorial [M].Beijing: Higher Education Press,2004[4] Shoukui Si,Xi Sun, Algorithm and application of mathematical modeling [M].Beijing:National Defence Industry Press,2011[5] Zhixing Zhang, Design and Application of the MATLAB program [M].Beijing: TsinghuaUniversity Press,2002。

2012英语ppt

Curtis Jackson
• Curtis Jackson, played by John Cusack. • Jackson Curtis is a writer in Los Angeles who works part time as a limousine driver for Russian billionaire Yuri Karpov.
参加制作的人员
组长：胡继东组员：赵峰 take their children to Yellowstone National Park vacation, but found that there were fond memories of the lake has dried up, and this area has also become a restricted（限制的） area. （限制的） • Filled with doubts of his camp near Yellowstone chance to know Charlie. • Charlie told him a long time due to the natural environment and resources by humans and predatory (食肉的食肉的)destruction of the Earth‘s own balance system 食肉的 has been facing a total collapse（崩溃）, humanity will （崩溃） soon face an unprecedented（前所未有的） natural （前所未有的） disasters. Charlie said that some countries have jointly developed and built a secret you can avoid this disaster ark（方舟）. （方舟） • Jackson thought he was crazy, they laugh it off and walked away.But the next day, a disaster occurred……

2012世界末日英语演讲ppt

In addition,there are a large amount of natural disasters warn us the coming of 2012
The environmental Nhomakorabearoblems
desertification of land（土地沙化） and air pollution

December 21, 2012
Earth ,sun, center of the Milky Way (银河系中心) will run in a straight line

The sun will rise from the black hole of galaxy, Earth magnetism will reverse.(太阳将从银河系的黑洞升起，
Today is May 10, 2012
If the world only
225 days left ,
how would you do
1.The long calendar dating will end
2.Polarization reversal
3.Overlapping objects
4.Mystery planet hit Earth
The authenticity （真实性）of the mayan prophecy
The five times of the earth holocaust（毁灭） 'hɔləkɔ:st]
--First : MATLACTILART(马特拉克堤利) ，The flood covered the ground --Second: EHECATI(伊厄科特尔 )，It end up with high wind --Third: TLEYQUIYAHUILLO (托雷奎雅维) the fire come from the sky --Forth: TZONTLILIC (宗德里里克)It end up with the Earthquake --Fifth: It may happen on 12,21,2012 ,After the sun set ,We will go through a period of darkness, Earth will be complete destroyed.

2012年SIFE全国赛PPT英文分享版

悦意 Gladness 沃土工坊 Fertile
（2）Analysis
分析
Background
Analysis
Solution
FA
R TRADE 公平贸易
How do these NGO protect the profit of those peasants?
Background
Analysis
76,104yuan
（3）GO OUT 心理康复
Background
Sell Out
Go Out
+
华师大心理咨询中心 Psychological Consultation Center of SCNU
One-to-one Psychological files 一对一心理档案
hypnosis therapy 催眠疗法
（3）Solution
解决方法
Background
Analysis
Solution
提高利润
Solution A
Increase Profit
Background
Analysis
Solution
利润 Profit
=
收入 Income
售价不变 ① Price Unchanged
-
成本 Costs ② 租金不变
Sell Out
Go Out
One and a half years ago…
一年半以前……
工疗站
Gongliaozhan
手工制作 Making Handicrafts
Background
Sell Out
Go Out
提高收入 Improve income

2012专业四级真题PPT课件

三年的时间才完成这项计划。
(4)as far as
He walked as far as the railway station yesterday evening.昨天傍晚，
他一直散步到火车站。
(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。
若有修饰成分，如twice, three times, half, a quarter等，则须
置于第一个as之前。例如：
Your bag is twice as expensive as mine.你的袋子比我的贵一
倍。
2021/3/9
授课：XXX
6
几个关于as...as的常见句型：
(1)as...as possible
授课：XXX
4
61. which of the following contains an adverbial clause of cause?
A. I got a job as soon as I left university. B. as there was no answer, I wrote again. C. you must do the exercises as I show you. D. wealthy as he is, Mark is not a happy man. Key B
2021/3/9
授课：XXX
7
2. as用作连词引导时间状语从句
as与when，while都是引导时间状语从句的从属
连词，含义都是"当……的时候"。但它们有区别：用
when时，从句的动作可以与主句的动作同时发生，

2012年英语专业四级考试真题【声音字幕同步PPT】

We now turn to those written records. There are five critical periods in the survival
of the English language. 1) 410 CE to the mid-eighth century
Early in the fifth century, Rome recalled its legions and told the
886. Due to Alfred’s education programs,
most of the existing laws,
poems, songs and stories were in the West Saxon dialect of his Wessex. Alfred died in 899. 3) 959 to 1066
In 959, King Edgar, the great-grandson of Alfred,
ruled both Danes and Saxons in England.
The incompetent King Ethelred the Unready succeeded Edgar.
He could not control the Danes. More Danes invaded; civil war followed.
speaking areas. Two years later, Edmund died;
Canute became King of all England in 1018. With Canute the center of literary production moved to London.

2012PPT

地震时间汶川 512 海地 112 智力 227 不管你横着看还是竖着看都是那个日期！！！
而且把地球抽象成一个球体，汶川，智利，海地，这三个近期来伤亡惨重的巨大地震，却位于同一条经度圈内。如今的地球内部极其活跃并且极不稳定
玛雅人的五大预言
1.预言了玛雅人自己的灭亡。
2.预言了我们这一代人有飞机有汽车这些高科技。 3.预言了我们这一代要出一个希特勒这样的人，并且预测了他的出生与死亡日期。 4.预言了我们这一代人将会在第五个太阳纪终结。 5.第五个预言就是2012年，世界末日。
逃避型
他们面对纷繁现实选择逃避……
我其实一直在躲避躲避这个春天用一把雨伞躲避这个和下个等不到的春天
乐观型
• 人类大灭亡只能说是自然规律，就像恐龙该死就会死的，我们既然生在了这个年代就够幸福的了 • 不管你有多么的伟大不管你有多么大的能耐，人终归是有一死的，所以说不要太悲观要快快乐乐的过好每一天
L
I
D
LOADING LOADING
G
What’s is it？
地震
暴风雨
沙尘暴
火森山林喷大发火龙卷风
海啸
青海玉树7.1级地震，灾难再一次牵动了举国民众的心。但一丝诡异的气氛，如同地震波般在人群中传递——才短短不到半年为什么大家那么相信世界末日？时间，今年耳熟能详的地震就发生了15起，再联系起国际上近年连续发生的大地震、北方四月飞雪、西南五省大旱，莫非灾难片《2012》中玛雅人的预言将会成为现实？2012年 12月21日，人类文明将要灭亡？
• 相关说明： 2012年12月21日的黑夜降临以后,2012年12月22日的黎明永远不会到来! • 玛雅历法是世界上最准确的日历,他们很多预言也灵验了. • 根据玛雅历法,地球分为五个太阳纪,也就是代表五次浩劫.第一个太阳纪是洪水纪,第二个是风蛇纪,第三个是火雨纪,第四个是地震纪,第五个就是世界末日.到时,太阳消失,地球剧烈晃动,到处火山地震,狂风洪水.生物灭绝, 地球彻底毁灭!玛雅历法推算的这天是3113 年,也就是公历2012年12月21日!

2012年全国大学生英语竞赛C类决赛赛卷

2012年全国大学生英语竞赛2012 National English Contest for College StudentsC类决赛赛卷(Level C-Final)Part I Listening Comprehension (30 marks)Section A (5 marks)1.What does the women think about the job application?A.She is not quite confident about it.B.She has got better qualifications.C.She might be lucky to succeed.2. Why does the woman support immigration?A. She thinks it is right to share resources.B. She thinks immigration brings job opportunities.C. She thinks they’ve got enough immigrants.3. How does the woman thinks about retirement?A. It’s most people’s desire.B. People don’t need to retire early.C. It shouldn’t be seen as an illness.4. Why do students join in the activity of 40-hour Famine?A. To raise money for buying food and water for poor students.B. To promote awareness of cherishing what one has got now?C. To draw attention to poor people suffering from famine.5. What does the woman most probably do?A. She is a director.B. She is an actress.C. She is a student.Section B (10 marks)Conversation one6. How many pre-constructed sections are made on land?A. 54,000B. 45,000C. 50,0007. What’s the main difference between maglev trains and conventional trains?A. Maglev trains travel on rails.B. Maglev trains don’t have wheels.C. Maglev trains travel at 300km/h.8. What was the idea of maglev trees firstly invented?A. In GermanyB. In the USA.C. In the U.K.9. Why are maglev trees free of noise?A. They don’t use rails.B. They run under water.C. They travel at high speed.10. What might cause damage to an underwater maglev trains?A. Ships at sea.B. A train from the opposite direction.C. The powerful ocean.Conversation two11. Which organization does the guest work for?A. Engineers without Borders.B. Doctors without Borders.C. Care Canada.12. When did George and Parker start to have the inspiration?A. After they dropped out of school.B. After they started their wok.C. After they graduated from college.13. What’s t he initial idea for setting up such an organization?A. To purify water in developing countries.B. To improve people’s life with the help of thchnology.C. To help people in poor nations get medical care.14. What would they do with next-state projects?A. To implement some of the technologies.B. To engage more engineers.C. To conduct more experiments.15. Who provide them with the seed funding to keep the project going?A. The government.B. Suncor Energy Foundation and Ontario Power Generation.C. Individuals in community.Section C (5 marks)16.How long did the first Thanksgiving Day last?A. Three weeks.B. Two weeks.C. Three days.17. What’s the purpose of America Jobs Act calling for cutting wage taxes?A. To prevent public employees from losing their jobs.B. To call for less spending on roads and infrastructure.C. To encourage more people to look for jobs.18. Why does the problem of debts affect a lot more nations than just the ones that are struggling with money.A. The nations use the same currency.B. The nations have joint business corporations.C. Those nations’ economies are independent.19. How much money can each child beggar earn a day for their minders?A. Dozens of dollars.B. Hundreds of dollars.C. A dozen or so dollars.20. Why did Spain’s top footballers hold a strike?A. Leading players got killed in a row.B. Two important games were postponed.C. There was a pay dispute.Section C (10 marks)Millions of television sets and old computer monitors taken to civic amenity site as rubbish are being collected and shipped toAfrica and Asia, an illegal trade worth £7,000,000 a year, according to unpublished report by the Environment Agency and the (21)_______. The business carried out by totters – people who sift through rubbish for saleable objects – become illegal on the 1st of January 2002 under European Union legislation (22)_______ prevent toxic waste material being shipped to developing countries.Electronic equipment (23) _______ leaded glasses, particular computers and televisions, were reclassified as toxic waste. The agency is alarmed half a million televisions and a similar number of computer monitors which people thought were being (24) _______ in England are being re-used or dumped in the developing world.The agency is finding the trading hard to control but is planning to publish guidance to the industry soon. Environment groups point out this action will not be (25) _______ to stop an illegal business.Claire Wilton of Friends if the Earth said, “The agency has known about this situation for two years but has still (26) ______ act.” The companies involved in this illegal trade must be prevent from dumping Britain’s toxic waste on developing countries. Action must be taken now to stop the environmental (27) _______ continuing.The Industry Council for Electronic Recycling estimate that 11,000 tons 0f old TV sets, about 500,000 (28) _______ , and a similar number of old computer monitors find their way to developing counties each year. Many are cannibalized for spare parts but some are repaired and sold to people who would not (29) _______ have a television or computer.The Industry Council for Electronic Recycling defends its members who buy computers and other office equipment from industry and ship them abroad, because under EU rues the business is illegal if they are working models and intended to be sold on the second-hand market .The problem arise when equipment is thrown away. The law says if it is (30) _______ , even if it may be working , it must be classed as rubbish and cannot be resold to a developing country because it is technically toxic waste.Part Ⅱ Vocabulary and Structure (15 marks)31. The president’s education speeches contained _______ the tongue leading to a public confusion over education policy.A. a slide ofB. a slip ofC. a skip ofD. a glide of32. The word “right ”, in most language, is usually connected _______ the meaning of “correct”, whereas the words associate _______ “left”, gene rally have negative meanings.A. to; withB. with; toC. to; toD. with; with33. Gas price rose 4％in April, a _______ rise but the smallest since January.A. MightB. SevereC. SteepD. massive34. It seems a very simple thing to tell the truth, but beyond all questions, there is nothing _______ lying.A. half so easy asB. so half easy asC. half easy asD. so easy as half35. _______ until recently, people who are left handed have been considered abnormal.A. UpB. UnlessC. DownD. Not36. Sorry about the loss. But it will give you some relief if your house is _______ against fire.A. AssuredB. EnsuredC. InsuredD. pledged37. When _______ in a downpour without an umbrella or a raincoat, most people would pick up their pace.A. SunkB. CaughtC. PlungedD. grabbed38. In 1993, V.S.Naipoul was awarded the David Cohen British Literature Prize in _______ of his lifetime’s achievement.A. IdentificationB. AcquaintanceC. RecognitionD. perspective39. Many linguists _______ that our highly evolved brain provided us with innate languageAbility not found in lower organism.A.SuggestB.ClaimC.PromiseD.convince40. I’m in a slightly _______ position in that he is not arriving until 12:00which is 3 hours late.A. TightB. WeirdC. AwesomeD. awkward41. Tactless she may be, but ungrateful _______ think her.A. should not youB. should you notC. not should youD. you should not42. More than 30 people died in the train accident, most of _______are children.A. WhichB. themC. WhomD. that43. He admits that his team really _______ him to play a role of responsibility.A. look forward toB. look down onC. look up toD. look on44. —Do you know the students have been protesting against the increased tuiton?—I’ve heart about the protest, but _______A.I’ve joined in it to support the students.B.I don’t see any good it will do.C.I do know the reason for it.D.I think it’ll be a great success.45.—I hear you are a journalist now, Paul. That must be exciting.—_______ most of the time. But like all jobs, it has its disadvantages.A.It’s boringB.It’s a piece of cakeC.It has drawbacksD.It’s a buzzPart Ⅲ Cloze (10 marks)There is a phenomenon that sociologists call reference anxiety —or，more popularly, keeping up with the (46) Jo_______. According to that thinking, most people judge their possessions in comparison with others’. People tend not to ask themselves, “Does my house meet my needs?” (47) Ins_______ they ask, “Is my house nicer than my neighbor’s?” If your two-bedroom house is surrounded by three and four-bedroom house, with some (48) ar_______ the corner doing a tear-down to build a McMansion, your reference anxiety may rise. Suddenly that two-bedroom house-one that your grandparents might have considered quite nice, even luxurious –doesn’t seem enough. And so the money you spend on it stops (49) _______ (provide) you with a sense of wellbeing.Americans’ soaring reference anxiety is a product of the widening gap in income (50) _______ (distribute). In other words, the rich are getting richer faster, and the rest of the population are none too happy about it. During much of the U.S. history, the (51) _______ (major) lived in small towns or urban areas where conditions for most people were approximately the same-hence, low level anxiety. Also, most people knew relatively little about those who were living higher on the hog.But in the past few (53)de______ , new economy forces have changed all that. Rapid growth in income for the top 5 percent of households has brought (54) _______ a substantial cohort of people who live notably better than the middle class does, amplifying our reference anxiety. That wealthier minority is occupying ever-larger homes and spending more on each change of clothes when the middle is doing O.K. In nations with high levels of income equality like the Scandinavian countries, well-being tends to be higher than in nations with unequal wealth distribution such as the United States.Part Ⅳ Reading Comprehension (40 marks)Section A (10 marks)Question 56—60 are based on the following passage.Several research groups in the United States are conducting genetic research aimed at retarding aging. If the breakthroughs of recent years are anything t o go by, it’s likely that we will see several-fold longevity increases in mice within the next decade or so. Already such genetic manipulation has increased by almost 50％the life span of flies. Results are also promising in mammals; scientist have extended longevity in mice by 50％through genetic interventions. Achieving similar results inhumans will be harder. Scientists have already identified genes that appear to accelerate human aging, but thy have yet to find genes with opposite effect. But with the sequencing of the human genome, we are now in a better position to find out more about aging in humans as well as animals.For those who cannot wait there is one method available today than might delay human aging: caloric restriction. This simply means a diet with few calories. Experiments have shown longevity increases of more than 50％in certain mammals that follow such diets. Most people, however , feel the secondary effects of this outweigh the benefits. After all, what is the point of living longer if you cannot enjoy life? If science is to extend human longevity, it will have to do so by extending the duration of human life in age —related disability. The extra years of life must allow future grandparents to enjoy life, not just life.Although some scientist argues that aging will never be cured and our grandparents will continue to fit our stereotypes, many others remain confident that we will soon learn how to modulate the human aging process. “I believe our generation is the first to be able to ma p a possible route to individual immortality,” says William Haseltine, CEO of Human Genome Sciences Inc. in Rockville, Maryland. If a therapy could slow human aging by 50％，for instance, we could have 30 or 40 more year of life. I n that time, new discoveries could be made that would allow us to live even longer, and the cycle could continue until a cure for aging is discovered. “It’s possible that some people alive now may still be alive 400 years from now,” claims gerontologist S. Michal Jazwinski of Louisiana State of University Health Sciences Center. But what could be consequences of extending human longevity or finding a real cure for aging?Question 56—60Complete the summary with words from the passage, changing the form where necessary, with only one word for each blank.Section B (10 marks)Question 61—65 are based on the following passageNo matter how carefully you plan a trip with a friend, or family member, there will probably be conflicts along the way. Even after the dates, destination and length of the trip are decided, there’s still the chance that problems could happen on the trip.Here are a few tips to help you solve the problems that may come up between you and your travel company:Plan the trip together: Sometimes one person take the leads and plan the trip to fit his or her interests. Planning together allow for a more diverse an balanced vacation. Some people want to walk; some people would rather use public transportation. So it’s important to find out how compatible you are in term of everything concerned.Find out about lifestyle: Differences in lifestyle can be challenging if they haven’t been discussed in advance. There’s nothing worse than being in the room and awake at 6:00 a.m. When your companion wants to sleep until noon. Sleep patterns can be very disruptive to people that don’t have the same pattern. The same can be said for dietary and other restrictions.Knowing those differences in advance helps people adapt to each other more quickly.Be aware of coping strategies: Ask questions and use your understanding of your companion’s coping strategies—how they may respond to stressful situations. You can ask your travel company about his/her best and worst trips. What happened? How did that person respond? Knowing a little about how your companion deals with difficult situation can be helpful.Compromise: Try to compromise in order to have a good time. Agree to disagree. Do you really want to use your energy feeling anger on your vacation when you should be relaxing and enjoying it? But travel journals for yourself and your travel partners. Writing in journals can be a way to reflect on the trip to relieve some of the frustration that may come up.Take a break: Split up when tensions are high and your interests are different. Be sure to set a time and meeting place and have a backup meeting set in case of an unforeseen delay. People tend to feel like they have to stick together when they are together on a trip. But anybody with someone 24 hours a day needs a break from the other person.Question 61—63Decide whether the following statements are true(T) or false(F) according to the passage.61. This passage aims to help travelers solve problems between them and their travel partners.62. Lifestyle differences can cause travel problems because all people enjoy sleeping till noon when on vacation.63. Even though your travel interests are different, you must always stay together with your travel partners.Question 64—65Answer the following questions according to the passage.64.Why do people have to ask their travel companion about his/her best and worst trips.65. Which way might help relieve the frustration that may come up?Section C (10 marks)Question 66—70 are based on the following passage.Knowing that Mrs. Mallard was afflicted with a heart disease, great care was taken to break to her as gently as possible the news of her husband’s death.She did not hear the story as many woman have heart the same, with a paralyzed inability to accept its significance. She wept at once, with sudden, wild abandonment, in her sister’s arms. When the storm of grief had passed she went away to her room alone. She refused to have anyone to follow her.There stood, facing the open windows, a comfortable, roomy armchair. Into this she sank, pressed down by a physical exhaustion that filled her body and seemed to reach into her soul.She sat with her head thrown back upon the cushion of the chair, quite motionless, expect when a sob come up into her throat and shook her, as a child who has cried itself to sleep continues to sob in its dreams.She was young, with a fair, calm face, whose lines indicated repression and even a certain strength. But now there was a dull stare in her eyes, whose gaze was fixed away off in the distance on a patch of blue sky. It was not a glance of reflection, but rather indicated a suspension of a intelligent thought.There was something coming to her and she was waiting for it, fearfully. What was it? She did not know; it was too subtle and elusive to name. But she felt it, creeping out of the sky, reaching toward her through the wounds, the scents, the color that filled the air.Now her bosom rose and fell with excitement. She was beginning to realize this thing that was approaching to possess her, and she was struggling to beat it back with her will, as powerless as her two white slender hands would have been..When she abandoned herself a little whispered word escaped her sighted parted lips. She said it over and over under her breath, “free, free, free! ” The empty stare and the look of terror that had followed it went from her eyes. They stayed sharp and bright. Her pulses beat fast, and the coursing blood warmed and relaxed every inch of her body.She did not stop to ask if it were or were not a monstrous joy that held her. A clear and exalted perception enabled her to dismiss the suggestion as of little importance.She knew that she would weep again when she saw the kind, tender hands folded in death; the face that had never looked except with love upon her, fixed and gray and dead. But she saw beyond that bitter moment a long procession of years to comethat would belong to her absolutely. And she opened and spread her arms out to them in welcome.Question 66—68Complete the following sentences with information given in the passage in a maximum of 2 words for each blank.66. Most women were shocked into a ______ on hearing the news of their husbands’ death, but Mrs. Mallard was not.67. When returning to her room, Mrs. Mallard was pressed down by _______ both physically and mentally.68. Mrs. Mallard’s dull stare indicated a _______ of deep thinking rather than a sign of contemplation.Question 69—70Choose the best answer according to the passage.69. What was Mrs. Mallard’s first reaction on hearing her husband’s death?A. She pulled herself together with the help of her sister.B. She stayed in her room and refused to meet anyone.C. She abandoned herself into grief for a while.D. She couldn’t stop weeping and crying.70. How did Mrs. Malla rd feel towards her husband’s death at the end.A. Bitter but relieved.B. Fearful but relaxed.C. Dull and desperate.D. Calm and suspicious.Section D (10 marks)Question 71—75 are based on the following passageNo creature can stride as human beings. They are not physically designed to support and balance a vertical body balanced on two long lower limbs, propelled forward by a foot engineered exclusively for body support and forward propulsion and to do so with a stride at high-speed locomotion. While other bipeds walk in a similar fashion, human walk is unique. Bipedalism itself offers no comparison with the distinctive human gait form. And, significantly, no other biped can actually cover more than a tiny fraction of the walking distance that can be sustained by humans.Striding requires a special design of hip, knee, an ankle joints, plus an arched foot, plus long lower-limb bones. Those “finishing touches” demanded extended evolutionary time. Striding provided numerous advantages over the si mple stepping gait. For example, the ability to cover twice the distance with the same number of steps is a definite survival advantage. It also added much speed to running, more height to jumping.None of this would have been possible without, first, a foot equipped to support and balance an erect body and to produce the leverage necessary to propel the body forward in locomotion. The ape foot was not suited for this. A new kind of foot was essential if those hominids were to become full-scale bipeds. Indeed a pair of human feet has one-fourth of all the body’s 206 bones and 244 joints. Why this extraordinary number of bones and joints concentrated in such a small part of the body? (74) Because the intricate network of the many different parts required not only for supporting and balancing a heavy superstructure but to enable the multiple motions and actions, hundreds or thousands of times daily. No other part of the body comes even close to the amount and degree of stresses imposed on it.The human foot had to go through an extensive evolutionary development in which it underwent enormous design changes in cohering its 28 bones, 37 joints and 107 ligaments, and 32 muscles and tendons to adapt to the body weight and numerous torsions. (75) In fact, it probab ly wasn’t until only about 400,000 years ago that early humans were fully striding, the final touch of human gait. Orthopedist Philip J. Mayer writes in the Orthopedist Review: “The development of a true stride on an orthopedic foot was the most crucial of all the steps of human evolutions.” Nature had perhaps never undertaken an anatomical engineering project of such complexity.Question 71—73Answer the following questions according to the passage.71. What’s the differences between humans and other biped s regarding walking distance?72. Why is the human foot equipped the way it is?73.What kind of evolution has the human foot undergone?Question 74—75Translate the underlined sentences in the passage into Chinese.(74) Because the intricate network of the many different parts required not only for supporting and balancing a heavy superstructure but to enable the multiple motions and actions, hundreds or thousands of times daily.(75) In fact, it probably wasn’t until only about 400,000 years ago that early humans were fully striding, the final touch of human gait.Part ⅤTranslation (10 marks)Translate the following sentences into English, using the words given in thebrackets. Remember to write your answers on the Answer Sheet.76. 有人建议，中国所有的博物馆都应对中小学生免费开放，使他们有更多机会获得广博的知识。

2012年伦敦奥运会“乌龙”瞬间,英文ppt

The most embarrassing and misunderstanding events in 2012 London Olympic Games2012 London Olympic Games logo and mascotNow let's share the“乌龙事件”。

（一）•（二）(三）•（四）In the men's 200m freestyle award in the flag-raising ceremony，the organizing committee of the London made a serious mistake.In this gameChina and South Korea also won the runner-up,but the organizing committee placed the South Koreanational flag on the Chinese national flag above.(五）At the awards ceremony of Men's gymnastics team final,due to the podium is too small,Chinese athletes can only stand before and after .(五）Champion flag the American flag was blown off.(六）The bronze medal was broken into pieces .Was the bronze medal made of tofu???(七）In the aquatics centre ,more than 400 audiences can only look at the ceiling because of the structural design of the Swimming and Diving Halls .(八）The press galleries don't have toilets in the basketball stadium.If the reporters want to get the important news,they should have the bigger bladders.(十）According to the tradition of Olympic Games the final torch can't die out ,but the final torch die out by accident in London Olympic Games.（十一）When the Lithuanian national anthem was played for the 100m breaststroke swimming winner,The national anthem was stoped half way. The song was not completely played（十二）In the opening ceremony,the Japanese team was lead out of the center of the stadium where they were supposed to be.And they missed the rest part of the ceremony(十三）There are many empty seats in the venue. While outside the venue, there is a long queue . It is difficute to get a ticket to the venue。

关于2012预言的英语PPT

Is this prophecy true ?
•WHAT ARE YOU THINKING OF NOW?
专家：“2012为世界末日”说法毫无科学依据，无须恐慌。电影《2012》在全球上映后，上海天文台已接到众多市民来电，纷纷咨询 “2012是否为世界末日？”在昨天上海天文台和上海市天文学会主办的科普讲坛上，上海天文台天体物理研究室研究员陈力教授否定了这一论调，称“这是毫无科学依据的说法”。据他介绍，最近一次小行星可能威胁地球的时间在2042年，但市民对此也无须恐慌。 “‘世界末日’的说法并不罕见。”陈力介绍说，上世纪90年代，诺查丹玛斯关于世界末日的预言甚嚣尘上，他预言1999年太阳系八大行星组成了“十字架”，人类将会有大劫难。但是事实证明，这个说法只是流言。玛雅人的“2012世界末日论”同样是个流言，玛雅人把2012年认为是一个历法轮回的结束，性质和2000年对现代人的意义差不多，目前没有任何科学依据表明2012年是世界末日。不过，小行星撞地球确实可能让地球遭到重大打击。据陈力介绍，最近天文学家发现有一颗小行星对地球存在潜在威胁，2042年，这颗小行星距离地球仅3万多公里，正好与地球“擦肩而过”。如果这颗小行星真的要撞上地球呢？陈力表示，目前人类的科技水平已完全能做到发射空间飞船到达数亿公里外的遥远空间，因此消除威胁的办法并不难找，比如发射氢弹在小天体附近爆炸，改变它的运行轨道；利用太阳能使小天体表面物质气化，减少它的质量，从而改变轨道；还有一种设想很“浪漫”，给小天体装“帆”，利用太阳风改变它的轨道。天文学家可以肯定的是，地球的真正威胁来自50亿年之后，届时太阳将成为一个红巨星吞没地球，但是到那时人类还是否存在，就不得而知了。
2012 DOOMSDAY
Wenchuan 8.0earthquake