单选题Their request was ______ and consequently rejected.

单选题The actress was very______ at the insulting question raised by her opponent at the conference.(2007年清华大学考博试题)

单选题{{B}}PartB{{/B}}Thepassagebelowsummarizesthemainpointsofthepassage.Readthesummaryandthenselectthebestwordorphrasefromtheboxblow,accordingtothepassage.YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.Everymorning,Alliewakesupandaccompaniesherfriendtothewashroom.Sheturnsonthelight,soapsupawashcloth,andbeginscleaningherfriend'sface.IsAnieanextremelydevotedcompanion?Yes!Allieisacapuchinmonkeywhohelpsherdisabledfriendperformeverydaytasks.MonkeyslikeAlliearejustoneofmanykindsofanimalsthathelpimprove--orevensave--humanlives.Butnotallanimalsaresuitedtodoeveryjob.Certainanimalsare"hired"forspecificjobsbasedontheirtraits,orcharacteristics.Byusingdifferentmethodsofconditioning(traininganimalstoactinaparticularwayinresponsetoastimulus,orsignal),humanscanteachanimalstoperformextraordinarytasks.Throughouthistory,humanshavereliedonanimals'traitstogetcertainjobsdone.Forexample,comparedwithhumans,dogsare"farsuperiorattrackingdownodors",saysMarianBailey,ananimalbehavioristatHendersonStateUniversityinArkansas.That'sbecausedogshavemillionofolfactoryreceptors,orsmellnerves,intheirnoses.Forthatreason,huntersuseddogstotrackdownpreyeveninancientEgypt.Today,dogsmybeemployedtosniffoutillegalsubstancesinschoollockersorearthquakevictimsburiedbeneaththerabbleofthecollapsedbuildingorhighway.Primatesmaynotbegoodsinffers,buttheycancertainlylendahelpinghand--ortwo.Monkeysareperfecthelpmatesforquadriplegics,peopleparalyzedfromtheneckdownwhoareunabletousetheirownhands(andlegs).Likehumans,explainsBaileymonkeyshaveopposablethumbs--thumbsthatfacethehand'sotherfingers--somonkeyscanpickupobjects.Capuchinslearntoopendoors,cleanupspills,andunscrewbottletops.TheycanevengetasandwichoutoftherefrigeratorandloadyourfavoritetapeintotheVCR.AndspeakingofVCRs,animalsareevenhelpingscientistsmakeavideotape.JenniferHurley,ananimalresearcherattheLongMarineLabinSantaCruz,California,istrainingtwosealionstocarryvideocamerasontheirbackstorecordthenaturalbehaviorofwhales.Sohowdoyougetananimalemployeetodoitsjob?Theanswer,career-training.Trainersteachtheanimalstoobeytheirinstructionsthroughaprocesscalledconditioning.Mosttrainersconditionanimalsbyusingpositivereinforcement,rewardingananimalfordoingsomethingcorrectly,saysanimalbehavioristBailey.Forexample,trainersteachtheirdogshowtosniffoutdrugsbyhidingatowelwiththesmellofdrags."Dogslovetoretrieveobjectssothetowelbecomesareward",saysMorrisBerkowitz,whoheadsupacaninedrug-sniffingprograminNewYork.Afterrepeatingthisgameofhide-and-seekmanytimes,thedogbeginsto"associatetheodorwithareward",saysBerkowitz.Whenhegivesthecommand,orstimulus,thedogseekscotdrags(it'slikelearningtostudyhardforatestsinordertogetagoodgradeasareward.)At"HelpingHands--MonkeyHelpersfortheDisabled",capuchinmonkeysaretrainedtwicebeforebeingteamedwithadisabledhuman.First,monkeysareplacedwithafosterfamilytobecomesocializedtopeople.Forfiveyears,familieshelpthemonkeysadapttoahumanenvironment,sothemonkeyswilltrustandenjoybeingaroundpeople.Takingthemonkeysinwhenthey'refourtosixweeksoldisimportant,saysBailey."That'swhenmonkeysnormallybecomesocializedtoothermonkeys,"shesays.Second,trainersatHelpingHandstrainthemonkeystoperformspecifictaskstoassistaparticularperson.Forexample,amonkeymaybetrainedtoscratchanitch,orslipafloppydiscintoacomputerdive.Trainersrewardthemonkeysbyusingpositivereinforcement,suchasfood,drinks.Allieisacapuchin{{U}}16{{/U}}whohelpsherdisabledfriendperformeverydaytasks.Allieisa(n){{U}}17{{/U}}ofmanyanimalswhocanbe{{U}}18{{/U}}todocertainjobs.Besidesmonkeys,{{U}}19{{/U}}andsealionscanalsogivepeopleahelping{{U}}20{{/U}}.Dogsaregoodat{{U}}21{{/U}}downpreyandsniffingout{{U}}22{{/U}}and{{U}}23{{/U}}becausetheyhavemillionsof{{U}}24{{/U}}intheirnoseMonkeysaregoodhelperforthe{{U}}25{{/U}},whocannotlookafterthemselves.Sealionscanhelpscientiststorecordthe{{U}}26{{/U}}ofwhalesbecausethey:can{{U}}27{{/U}}tothedeepocean.Inaddition,{{U}}28{{/U}}arepartofwhales'naturalenvironment,whichmakesthevideomore{{U}}29{{/U}}.Butanimalscannotdothejobs{{U}}30{{/U}}training.Themainprocessoftrainingiscalled{{U}}31{{/U}},whichuses{{U}}32{{/U}}.Duringthetraining,trainers{{U}}33{{/U}}ananimalfordoingsomething{{U}}34{{/U}}.Formonkeys,thepositivereinforcementcan{{U}}35{{/U}}ayearbeforetheyarequalifiedfortheirjobs.

单选题It"s often hard to see your mistakes as you"re making them. When it comes to living arrangements, a humdinger is being made in this country right now and few have noticed it yet. "Yikes!The kids are moving back in!" Thus goes the mantra of the baby boom generation, circa 2007. Analysts estimate that some 18 million adults between the ages of 20 and 34 live with their parents. That"s roughly a third of that age group. But letting the kids move back in is not the societal error we"re talking about. Instead, the big mistake is the loudly voiced chagrin of the boomers. Most mistakenly decry the notion of the boomerang generation. In order to fully appreciate the depth of the error being made here, we all need to step back a bit and look at the bigger picture. This epidemic of kids moving back home is first, not "unprecedented," and second, it"s not a bad thing. The precedent for this trend can be found among the other 6.2 billion non-Americans on the planet, many of whom happily live with their adult children, often in three-generation households. Then there"s the growing number of non-Anglo Americans, including many recent immigrants, who see no problem in having adult kids contribute to the household. Finally, the agrarian history of this country before World War II allowed kids to live and work around the farm weI1 into adulthood. Adult kids moving back home is merely the most noticeable symptom of a larger, fundamental transformation of American society. We are nationally beginning to recognize the costs of the independence the so-called greatest generation foisted on us. We can"t blame them. They did have to grow up fast. Kids in their generation went off to World War II and grew up on the bloody beaches of distant lands. After the war, the survivors had factories to build and the wealth to buy their white-picket-fence dream out West. They designed a social and fiscal system that has served their retirement years very well. But their historically unique retirement system mistakenly celebrated independence and ignored the natural state of human beings--that is, interdependence. Moreover, their system breaks down with the onslaught of their kids" retirement. We can already see the pension systems, both private and public, beginning to disintegrate under the weight of the baby boomers. We are now just starting to understand the substantial fiscal and psychological costs of separating the generations into so-called single-family homes with the ideal of a mother, father and two kids. But times change and so do cultures. Regarding boomerang kids, most demographers focus on the immediate explanations for the changes, such as the growing immigrant population, housing shortages and high prices, and out-of-wedlock childbearing. Many psychologists have noted that baby-boomer parents enjoy closer relationships with their fewer children that allow extended cohabitation. A recent survey conducted for Del Webb (a division of Pulte Homes Inc.)reports that only about one-quarter of baby boomers are happier once the kids move out. However, all these explanations are simply symptoms of the larger, more fundamental reuniting of Americans into households that include extended families--adult, kids, grandparents, grandchildren and other relatives -- rather than just nuclear families. The rate at which our American culture is adapting will accelerate as baby boomers begin retiring in waves. Creative housing arrangements are necessitating and allowing three generations to live together again- under one roof or in close proximity. Now some 6 million American grandparents are living under one roof with their grandchildren. Whether grandparents live in accessory apartments on the property or houses next door, these flexible housing options provide privacy and companionship at the same time. Grandparents can interact with their grandchildren while the parents work, and all benefit from the new togetherness. These 21st century housing arrangements are a creative way to handle the financial needs of the generation that is retiring and, yes, the adult children who are coming home. Such multigenerational households don"t make sense for everyone. Personality conflicts or family characteristics preclude such arrangements for some. Legal constraints such as building and zoning codes are formidable obstacles in most communities across the country. Often more room is mandated for parking your car than parking your grandmother. Home builders have been more interested in selling houses that satisfy immediate needs rather than anticipating the needs of the growing numbers of aging Americans. The culture itself frequently gets in the way, reinforcing the perception of a stigma attaching to lack of independence- the adult child who just won"t move out (and grow up) or the aging grandparent who eschews "being a burden". Despite these problems, once you begin talking with your friends about three-generation households, you will begin hearing stories about how such obstacles are being overcome. You also will begin hearing stories about the wonderful benefits of thinking about housing and family arrangements in creative ways. And you"ll hear stories about the fundamental satisfaction of living together again.

单选题Management was not acting in good faith when it alleged that worker's wages would have to be cut for the company to remain solvent.

单选题Against the wishes of many smaller countries, Europe is______ a stable, if undesirable, situation lacking any coherent policy of transnational coordination in basic and strategic research--despite the European Commission. A. tightened with B. put fast into C. stuck fast in D. fastened with

单选题Hardly a week passed ______ he got another new idea. A. that B. for C. but that D. but for

单选题Horseback riding ______ both the skill of handling a horse and the mastery of diverse riding styles.(2004年中国科学院考博试题)

单选题He hasn't analyzed why he tips so generously, but I think the proclivity stems from his high school years, when he worked as a busboy.

单选题 Then mark the corresponding letter on the Answer Sheet. For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the {{U}} {{U}} 1 {{/U}} {{/U}}of its interest. Most of us are quite happy when we feel {{U}} {{U}} 2 {{/U}} {{/U}}to go to bed and pleased when the journey {{U}} {{U}} 3 {{/U}} {{/U}}. On the first night this time I felt especially lazy and went to bed {{U}} {{U}} 4 {{/U}} {{/U}}earlier than usual. When I{{U}} {{U}} 5 {{/U}} {{/U}}my cabin, I was surprised {{U}} {{U}} 6 {{/U}} {{/U}}that I was to have a companion during my trip, which made me feel a little unhappy. I had expected {{U}} {{U}} 7 {{/U}} {{/U}}but there was a suitcase {{U}} {{U}} 8 {{/U}} {{/U}}mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet {{U}} {{U}} 9 {{/U}} {{/U}}, except that he was wearing {{U}} {{U}} 10 {{/U}} {{/U}}good clothes that I made up my mind that we would not {{U}} {{U}} 11 {{/U}} {{/U}}whoever he was and did not say {{U}} {{U}} 12 {{/U}} {{/U}}. As I had expected, he did not talk to me either but went to bed immediately. I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered {{U}} {{U}} 13 {{/U}} {{/U}}as well as I could and tries to go back to sleep. Then I realized that a {{U}} {{U}} 14 {{/U}} {{/U}}was coming from the window opposite. I thought perhaps I had forgotten {{U}} {{U}} 15 {{/U}} {{/U}}the door, so I got up {{U}} {{U}} 16 {{/U}} {{/U}}the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and {{U}} {{U}} 17 {{/U}} {{/U}}the moon shone through it on to the other bed. {{U}} {{U}} 18 {{/U}} {{/U}}there. It took me a minute or two to {{U}} {{U}} 19 {{/U}} {{/U}}the door myself. I realized that my companion {{U}} {{U}} 20 {{/U}} {{/U}}through the window into the sea.

单选题His health compels him to______ in his early 30s.

单选题Strict sanitary procedures formulated by our municipal government help to out-breaks of diseases. A. preview B. forestall C. ignite D. fluctuate

单选题If the seller fails to provide good title, the contract will become null and ______.

单选题It was obvious that he had been drinking far too much from the way he came ______down the street.

单选题We have in America a ______ speech that is neither American, Oxford English, nor English but a combination of the three.

单选题According lo the pro-choice position, ______.

单选题The apples from this tree taste especially ______.

单选题Once the novelty of watching TV and videos all day has ______, there is nothing to do.