判断题ScientistshaveidentifiedthelikelyculpritinadiseasethathasdevastatedseastarsalongthewestcoastofNorthAmerica.Genomicdetectiveworkandlabexperimentsshowthatthewastingdisorderisassociatedwithapreviouslyunknownvirus.Withthediscoverycomesadeepermystery,however,theseastar—killingvirusisfarfromnew.Theauthorsofthestudyfounditinmuseumsamplesupto72yearsold,soscientistsarepuzzledaboutwhythecurrentoutbreakhasbeensosevere."Thisisprobablythemostextensiveanddevastatingdiseaseofmarineinvertebratesthathashappened,"saysecologistBruceMangeofOregonStateUniversity,Corvallis,whowasnotinvolvedinthenewresearch."It"samajorconcern."TheenigmaticdiseasecametobroadattentioninJune2013,whenrecreationaldiversnearVancouver,BritishColumbia,andSeattle,Washington,begannoticinglegions0fdyingseastars.Theseastarsfirstdevelopedlesions,thenbegantolosetheirarms,andfinallydecayedintopilesofskeletalossicles(bitsofcalciumcarbonatesuchasastar"splatesandspines).Astheyearprogressed,thediseasewasseeninmoreandmorelocationsinthewatersoffCalifornia.Althoughtherehavebeenminoroutbreaksinpreviousdecades,thisoneismuchmorewidespread,andmorethan20speciesofseastarshavebeenafflicted;otherkindsofechinoderms,theanimalgrouptowhichseastarsandseaurchinsbelong,havenot.Researchershaveracedtocollectsamplesandconductlaboratoryexperimentstoinvestigateanypathogensthatmightbeinvolved.AfeatureinScienceearlierthisyear,nowavailableforfree,examinedthemystery.ScientistssenthundredsoftissuesamplestoIanHewson,amicrobialoceanographeratCornellUniversity.WhenhesequencedtheDNAinthesamples,hediscoveredthatadensoviruswasmorecommoninthesickstarsthaninonesthatlookedhealthy.(Densovirusesareknowntoinfectinsects,crustaceans,andsomeseaurchins.)AdditionalevidencecamefromexperimentsconductedbymarineecologistDrewHarvellofCornellandotherresearchers,whotooktissuefromsickseastars,filteredouteverythinglargerthanviruses,andinjectedthetissueintoapparentlyhealthyseastars.Theydevelopedsymptoms—and,concurrently,theamountofdensovirnsintheirbodiesincreased.Otherseastarsinjectedwithsterilizedtissuedidnotdevelopsymptomsofthewastingdisorder."Wehaveverygoodevidencethatthisisadensovirus,"Hewsonsays.Butbecausetheviruscannotbegrowninculture,scientistscannotsatisfytheclassictestsforidentifyingtheculpritofadisease:fourcriteriacollectivelyreferredtoasKoch"spostulates.TheresearcherspublishedtheirresultsonlinetodayintheProceedingsoftheNationalAcademyofSciences.Lookingforsomehistoricalperspective,Hewsontestedmuseumsamplesofseastarscollectedbetween1923and2010alongtheUSwestcoast.Thevirusexistedinhealthy-lookingspecimensfromfivedifferentyears,suggestingithaspersistedintheenvironment.Hewsonspeculatesthatthevirusmayhavemutatedasitwipedoutvariousspeciesofseastars,allowingittoinfectothers.Heisalsotryingtofigureoutthesourceofthevirus,byanalyzingseastarsfromaroundtheworld,andwhetheritcaninfectotherkindsofechinoderms.Thebiggestquestioniswhythecurrentepidemichasbeensobad.Alikelysituation,Hewsonandhiscolleaguessay,isthatanoverabundanceofseastarsincreasedthetransmissionofthevirus,especiallyiftheywerestressedbycompetitionforfood,whichcouldmakethemmorevulnerabletoinfection.ThattheorymakessensetomarinepathologistMartaGomez-ChiarrioftheUniversityofRhodeIsland,Kingston,whowasnotinvolvedinthenewpaper.Sheandherstudentshavebeenstudyinganearlierdensovirnsoutbreakontheeastcoast;populationsofseastarsinRhodeIsland"sNarragansettBayaboundedbeforeacrashin2011.It"snotclearwhetherthesamedensovirusthatcausedthewestcoastdie-offisalsoinvolvedintheeasterndeclines.HewsonfoundsomedensovirnsgenesinseastarsfromConnecticutbutdidnothaveenoughsamplesforfirmconclusions.Mengedoesn"tthinkoverabundanceplayedaroleinthecurrentoutbreakamong13seastarpopulationsthathefollowsonthecoastofOregon.Instead,hewonderswhetheroceanacidification,whichmayalsobeasourceofstressthatweakensseastars,isapossiblecontributingfactor.Sofar,theevidenceismixedfortheroleofacidification,Mangeadmits.Whateverthecauseoftheepidemic,Mangesays,thedemiseofpurplestarshasalreadyledtogreatersurvivalofitsprey,includingbarnaclesandmussels.Asaresult,hepredicts,themusselswilleventuallytakeovertherockyshore,crowdingoutmanyotherspeciesofinvertebrates.Inaway,headds,theepidemicisaonce-in-a-lifetimeopportunityforecologiststostudythesepredator-preyrelationships.Butthatdoesn"tdullthepainoflosingfamiliarandcharismaticspecies."Fromapersonalstandpoint,it"sreallydisheartening."Markeachstatementaseithertrue(T)orfalse(F)accordingtothepassage.

判断题 Hillary Clinton was in her element. On stage at Belfast's Grand Opera House last week, flanked by volunteers and politicians' wives, Clinton celebrated the role of women in the Northern Ireland peace process. In a confident speech reminiscent of another Clinton, she urged her audience to keep pushing for a common-sense end to the ages-old conflict. On her last official overseas trip as First Lady, Clinton fondly recalled not only earlier visits to Belfast, but her travel around the globe. Now she'd 'come to say farewell and, as she put it, to "end one chapter in my life." But traveling with the president on his victory lap around the British Isles last week, Hillary was opening a whole new book. As the Clintons prepare to leave the White House, Bill isn't the only one thinking about a legacy. Hillary has racked up a long list of First Lady "firsts": first baby boomer, first professional woman, first to head a major government task force, first to testify before a grand jury. "Hillary Clinton is, in my estimation, the single most accomplished First Lady in American history," say Carl Anthony, a former Nancy Reagan aide and author of "American First Families." But it's been a bumpy ride. "She might say surviving is her greatest triumph," says a friend. Now her election to the U.S Senate and a staggering new book deal prove that Clinton has not only survived-she's thriving. So much so that she's already topping the whispering list of contenders for the Democratic presidential nomination in 2004. Despite all her years on the national stage, much about Hillary Clinton remains a mystery-which may explain why Simon & Schuster last week bid an almost unprecedented $8 million to publish her memoirs. But friends caution that while Clinton will touch on the obvious travails of her champion fund-raiser-both for Democrats who love her and for Republicans who love to hate her-and could become an eloquent voice of opposition against the new Bush White House. Hillary has promised to serve out her six-year Senate term, a vow that still could leave her open for a presidential bid in 2008. Still, friends insist she have no such plans. But the idea could grow on her. A1 Gore once seemed the natural heir of Bill Clinton's legacy. But in a few years, with a solid Senate record on key committees like finance or appropriations, Hillary could be well positioned to challenge the notoriously stiff campaigner who already squandered the advantages of incumbency. No matter what her ultimate ambitions are, Clinton has learned a thing or two about taking small steps. When Hillary staked out an office in the West Wing and took charge of health-care reform, people thought she was overreaching. Yet while Clinton was wounded after the health-fiasco, she never abandoned her goals, quietly pushing initiatives on children's health, adoption and foreign aid, among others. After years of changing hairstyles and political strategies, Hillary, it seems, has finally found her groove. It is a central tenet of Hillaryland that every woman gets to make choices of her own-to work, to run for office, to stand by her man. So when Clinton sits down with Laura Bush, friends say she won't be offering any how-to lectures. Clinton is far more consumed with her own new job in the Senate. She's also zeroing in on a house in Washington. She won't be staying at 1600 Pennsylvania Avenue anymore, but she won't be far away, either.

判断题Brad&Jen:StillCo-workersSuperstarHollywoodcouplePitt,currentlystarringinthecrimecaperOcean"sTwelve,andAniston,bestknownforherTVroleasRachelGreeninFriends,haveseparatedafter4.5yearsofmarriage,buttheyremain"committedandcaringfriends".Theannouncementoftheirsplitfollowedmonthsoftabloidstoriesaboutspousalupsanddowns,includingreportsthatPitt,41,wantedtobecomeafatherbutAniston,35,wasreluctanttostartafamily.Anistonhadbeenphotographedrecentlywithoutherweddingring,butjusttwodaysagotheNewYorkPostsplashedapictureofthecoupleonitsfrontpagewithacirclearoundAniston"shandandtheheadline:"TheRing"sBackOn!"Pitt,oneofHollywood"smostsought-afterleadingmen,andAniston,whobecameahouseholdnameonthelong-runningNBCtelevisioncomedyFriends,metonadinnerdatein1998.Theyweremarriedinalavish,celebrity-studdedweddingintheseasideCaliforniaresortofMalibuonJuly29,2000.NewsoftheirbreakupcameinanunderstatedannouncementreleasedlateonFridayafternoonthrough"People"magazine."Wewouldliketoannouncethataftersevenyearstogetherwehavedecidedtoformallyseparate,"theysaid:"Forthosewhofollowthesesortsofthings,wewouldliketoexplainthatourseparationisnottheresultofanyofthespeculationreportedbythetabloidmedia.Thisdecisionisaresultofmuchthoughtfulconsideration.Wehappilyremaincommittedandcaringfriendswithgreatloveandadmirationforoneanother.Weaskinadvanceforyourkindnessandsensitivityinthecomingmonths."BradandJenmaybehistory,buttheirproductioncompanywillsoldieron.Thefutureoftheformerpowercouple"sPlanBEntertainmentshingle,formedwithnewParamountPicturesCEOBradGrey,hasbeenthesubjectofmuchspeculationsincePittandAnistonannouncedtheirsplit.NowrepsforbothstarssaytheyhopetoremainproducingpartnersandthatPlanBwillcontinueputtingoutfilmsinthemeantime.However,withPittandAnistonreadjustingtothesinglelifeandGreygettingusedtolifeatopthe"mount",it"spossiblethatcertainPlanBprojectsinearlierstagesofdevelopmentcouldeventuallybedropped.

判断题4 9 6 2 3 4 7 8 2 1 9 6 4 3 2 Multiply by 7 the number of odd numbers which are immediately followed by an even number in the list above. What is the answer?

判断题Today men are facing new expectations and new choices about their commitments to society, family and work. No longer certain what goals they should pursue, much less how they should pursue them, many men have found themselves in a no-man"s land, searching for new meanings and definitions of maturity. In interviews I conducted with 138 men from diverse social and economic background, 36 percent defined their family and work commitments in terms of primary breadwinning, and 30 percent chose to eschew parenthood or to avoid involvement with children they had brought into the world. However, about 33 percent had moved toward more rather than less family involvement over the course of their lives. These men develop an outlook on parenthood that included caretaking as well as economic support. They represent a growing group of fathers, most of whom are married to work-committed women and have an egalitarian approach toward marriage and family commitments, who are changing diapers, pushing strollers, cuddling their children, and generally sharing in the pleasures and burdens of child rearing. Such men, whom I call "involved fathers", are demonstrating a capacity, a willingness, and an enthusiasm for parenting not seen in their fathers" and grandfathers" generations. An involved father, however, is not necessarily an equal father. Though men"s domestic participation has increased in recent years, his involvement has not kept in pace with women"s rapidly rising commitment to paid employment. A persistent "housework gap" has left most women with more work and less leisure time than their male counterparts. According to some estimates, when the time spent performing paid work, housework, and child care is added together, men work an average of 88 fewer hours a year than do women. It may be tempting to focus on the fact that, even among men who support equality, their involvement as fathers remains a far distance from what most women want and most children need. Yet it is also important to acknowledge how far and how fast many men have moved toward a pattern that not long ago virtually all men considered anathema. One recent survey found that 73 percent of a group of randomly selected fathers agreed strongly that "their families are the most important facet of their lives"; 87 percent agreed that "dad is as vital as mom in raising kids". The challenge is to create the social and cultural arrangements that would enable men to uphold these beliefs more easily.

判断题A B C D E F G H Which letter is two the left of the letter three to the right of the letter immediately to the right of the letter three to the left of the letter G?

判断题Overseas assignments are becoming increasingly important to advancement within executive ranks. The executive stationed in another country no longer need fear being "out of sight and out of mind." He or she can be sure that the overseas effort is central to the company"s plan for success, and that promotions often follow or accompany an assignment abroad. If an employee can succeed in a difficult assignment overseas, superior will have greater confidence in his or her ability to cope back in the United States where cross-cultural considerations and foreign language issues are becoming more and more prevalent. Thanks to a variety of relatively inexperience communications devices with business applications, even small businesses in the United States are able to get into international markets. English is still the international language of business. But there is an ever-growing need for people who can speak another language. A second language isn"t generally required to get a job in business, but having language skills gives a candidate the edge when other qualifications appear to be equal. The employee posted abroad who speaks the country"s principal language has an opportunity to fast-forward certain negotiations, and can have the cultural insight to know when it is better to move more slowly. The employee at the home office who can communicate well with foreign clients over the telephone or by fax machine is an obvious asset to the firm. Decide the following statements are true (T) or false (F) according to the passage.

判断题When was the last time you saw a frog? Chances are, if you live in a city, you have not seen one for some time. Even in wet areas once teeming with frogs and toads, it is becoming less and less easy to find those slimy, hopping and sometimes poisonous members of the animal kingdom. All over the world, even in remote jungles on the far side of the globe, frogs are losing the ecological battle for survival, and biologists are at a loss to explain their demise. Are amphibians simply over-sensitive to changes in the ecosystem? Could their rapid decline in numbers be signaling some coming environmental disaster for us all? This frightening scenario is in part the consequence of a dramatic increase over the last quarter of a century in the development of once natural areas of wet marshland: home not only to frogs but to all manner of wildlife. Yet, there are no obvious reasons why certain frog species are disappearing from rainforests in the Southern Hemisphere which are barely touched by human hands. The mystery is unsettling to say the least, for it is known that amphibian species are extremely sensitive to environmental variations in temperature and moisture levels. The danger is that planet Earth might not only lose a vital link in the ecological food chain (frogs keep populations of otherwise pestilent insects at manageable levels), but we might be increasing our output of air pollutants to levels that may have already become irreversible. Frogs could be inadvertently warning us of a catastrophe. An example of a bizarre occurrence regarding a species of frog dates from the summer of 1995, when "an explosion" of multi-coloured frogs of the species Rana klepton esculenta occurred in the Netherlands. Normally these frogs are brown and greenish-brown, but some unknown contributory factor is turning these frogs yellow and/or orange. Nonetheless, so far, the unusual bi- and even tri-coloured frogs are functioning similarly to their normal-skinned contemporaries. It is thought that frogs with lighter coloured skins might be more likely to survive in an increasingly warm climate due to global warming. One theory put forward to explain extinct amphibian species that seems to fit the facts concerns the depletion of the ozone layer, a well-documented phenomenon which has led to a sharp increase in ultraviolet radiation levels. The ozone layer is meant to shield the Earth from UV rays, but increased radiation may be having a greater effect upon frog populations than previously believed. Another theory is that worldwide temperature increases are upsetting the breeding cycles of frogs. Decide the following statements are true (T) or (F) according to the passage.

判断题ItseemednormalwhenNguyenNgocTruongSonwantedtoplaychesswithhisparents.However,itwasunusualwhenherevealedthathealreadyknewhowtoplay—beforeanyonetaughthim.Apparentlythetwo-year-oldhadlearnedalloftherulesbywatchinghisparents.Byage4,hewascompetinginnationaltournaments.Byage12,hewasVietnam"syoungestchampion.Anothertwo-year-oldchild,JayGreenberg,likewisesurprisedhisparentsbydrawingpicturesofmusicalinstrumentsthathehadneverseen.TheysoondiscoveredthatJay"heardmusicinhishead."Hebegantocomposemusicatage3.Byage10,hewasattendingtheprestigiousJulliardConservatoryinNewYork,composingfullsymphonies.Jaywasnotednotonlyforthequalityofhismusicalwork,butalsothespeedatwhichhewasabletoproduceit.Thatis,whiletalentedprofessionalcomposersnormallywritefiveorsixsymphoniesinalifetime,Jaywrotefivebytheageof12.Childprodigiessuchastheseareamysterytoexpertsandnon-expertsalike.Ontheonehand,theyattractpraiseandattentionfromeveryonetheymeet;ontheotherhand,theyattractcriticismandtheyfinditdifficulttofitinwiththerestoftheworld.Childprodigiesarehighlyintelligent,butthisisnottheonlyfactorthatsetsthemapart.Theyareconsideredprodigiesbecauseoftheirexceptionalabilityinonedomain,orarea.Expertsdefineprodigyas"ayoungchildwhodisplaysmasteryoffieldthatisusuallyundertakenbyadults."Childprodigiesusuallyappearinstructuredareassuchaslanguage,math,drawing,chess,andmusic.Theyarenotaslikelytoappearinlessstructureddomainssuchasmedicine,law,orcreativewriting,areasthatrequireexperience.Childprodigiescanfocustheirattentionforlongperiodsoftime,concentratingontasksthatwouldboreotherchildrenofthesameage.Two-year-oldNguyenNgocTruongSonhadtheconcentrationtoplaychessforhoursatatime.Thedistinctionof"prodigy"thusgoesbeyondmereintelligence.Forexplanations,expertslookintwodirections:nature,thechild"suniquebiology,andnurture,thechild"senvironment.Whenresearcherslooktonaturetoexplainchildprodigies,theystudyinnateorinbornqualities.Forexample,theylookatwhetherthebrainstructureofaprodigyisdifferentfromthatofachildwithaverageintelligence.Technologyisagreathelponansweringthisquestion.Forinstance,scientistsutilizeimagingtechnologytoseetheamountofactivityindifferentpartsofthebrain.Thesebrainscansrevealthatthefrontallobeofaprodigy"sbrainisveryactive,unlikechildrenwithaverageintelligencedoingthesametasks.Theirfrontallobesarevirtuallyinactive.Scientistshaveproventhatthefrontallobeofthebraincontrolsmanyaspectsofthoughtandconcentration.Thismayexplainhowprodigiescanfocusonatask,solvecomplexproblems,andlearnquickly.Whenresearcherslooktonurturetoexplainchildprodigies,theyfocusonthechild"senvironmentinsteadofthechild"sbiology.Themostimportantfactoronthenurturesideistheparents.Raisingachildprodigyisextremelychallenging.Itrequiresconsiderablepatience,creativity,andresourcefulness.Someparentsaredelightedbytheextraordinaryabilitiesoftheirchildren.Theymakeuseofalltheresourcestheyhaveorcanfindtosupportthem.Forexample,JayGreenberg"sparentsboughttheir2-year-oldsonacellowhenherequesteditandarrangedformusiclessons.Otherparentsarenotsosupportiveoftheirchildprodigy.Onthecontrary,someparentsevenseetheiroffspring"sgiftsasawaytodrawattentiontothemselvesandtheirowninterests.BorisSidis,forexample,wasawell-knownscientistwithstrongopinionsaboutmakingthemostofone"sintelligenceandaboutraisingchildren.WhenhissonBillywasborn,Borissawthechildasanopportunitytotesthistheories.Whenpeopleareunusual,theyattractattention.Inthecaseofchildprodigies,theattentiontheyreceiveisbothpositiveandnegative.Itispositivebecausemostpeopleadmireintelligence.Itisnegativebecauseprodigiesareverydifferentfromotherpeople.Theyareachallengeforteachers,whoexpect7-year-oldstopreferBatmantoBeethoven.Theyareachallengetoparents,whowanttohelpthembutoftenlacktheresourcesorfindtheirneedsanddesiresdifficulttounderstandandmeet.Theypresentachallengetoscientists,whowanttostudythemwithoutfurtherisolatingthemfromnormalsociety.Andtheychallengetheworldbecausetheyrevealthetendencythatpeoplehavetorejectthosewhoaredifferentfromthenorm.Markeachstatementaseithertrue(T)orfalse(F)accordingtothepassage.

判断题Dear Advisor: Should She Propose? Dear Advisor, My boyfriend and I just celebrated three years together. [ want to ask him to marry me. My friends say I shouldn"t. They say that only desperate women propose marriage. Are they right? Nervous in New Jersey Dear Nervous, Your friends are not right. Today it is fine for a woman to propose to a man. In 2003, the Korbel Champagne Company conducted a survey. They asked, "Should women ask men to marry them?" Sixty-seven percent of Americans said yes. The survey asked women, "Would you propose to a man?" Almost 50 percent of the women said they would. They also asked men, "Would you accept a woman"s proposal?" Almost 80 percent said yes. Thirty-one percent of women know a woman who has proposed to a man. Experts generally agree. Dr. Linda O"Connor has a radio talk show about love and marriage. O"Connor says that women who propose are usually educated and self-confident. In addition, their boyfriends usually like strong women. However, advice columnist Susan Fine argues that even women with a lot of self-confidence may need some help with their proposals. Here is her advice. First, the proposal should not be a surprise. The relationship should be serious. She also advises women to do two more things. They should write out the proposal and practice it before they ask for their boyfriends"hands in marriage. How would Susan Fine answer you? If you and your boyfriend are happy, do not pay attention to your friends. And don"t invite them to the wedding. The Advisor Statements:

判断题Using land for a house and for a park, which one best reflects a cost to society as defined in the passage?

判断题Ateamofscientistshasjustfinishedwhatmightliterallybedescribedasoneofthemostbreathtakingjobsintheworld—surveyingandmappingthecoralreefsinSoutheastAsia"sCoralTriangleoffthecoastofIndonesia"sSulawesiIsland.AspartoftheCatlinSeaviewSurvey,teamsfromtheUniversityofQueensland,Indonesia"sSamRatulangiUniversityandIndonesia"sInstituteofSciencesspenttimeunderwateroverseveralweeksnearthecityofManadotorecorddataandmapreefsinwhatthesurveysays"couldbecomeoneofthelastrefugesonEarthforcoralreefs".TheeffortwaspartofalargerprojecttomaptheCoralTriangle,whichencompasses647millionhectaresoflandandsealocatedwithintheterritoriesofIndonesia,Malaysia,thePhilippines,PapuaNewGuinea,theSolomonIslandsandTimor-Leste."CoralTriangle"referstoaroughlytriangularshapeofwatersbetweenthePacificandIndianoceans.Asoneoftheworld"smostcrucialbreedinggroundsformarinebiodiversity,it"shometo75percentofallknowncoralspecies,includingnearly600speciesofreel-buildingcoralsand3,000speciesofreeffish.TheCatlinSeaviewSurveysaysthescaleofitsunderseamappingprojectisunprecedented.LocatedontheislandofSulawesi,ManadoisthecapitalofIndonesia"sNorthSulawesiprovince.CoraldevastationAccordingtoexperts,about40percentoftheworld"scoralshavebeenlostinthelastthreedecadesduetoclimatechangeandhumanactivities.Assumingthecurrentrateofdeclineremainssteady,somemarinebiologistspredictthatmostoftheworld"sremainingcoralwilldisappearbythemiddleofthecentury.TheCatlinSeaviewSurveygotunderwayinSeptember2012onAustralia"sGreatBarrierReef.CentringonthewatersofSoutheastAsia,the2014campaigncommencedinAprilhasalsocoveredareasaroundApoIslandandTubbatahaReefsinthePhilippines,KomodoandBaliinIndonesia,andEastTimor.LocatedinthecentreoftheCoralTriangle,Manadoisacrucialsectionforresearchers."RegionslikeManadointheCoralTrianglecould,bythemiddleofthecentury,beoneoftheonlyplacesonEarthwherecoralreefswillexist,"saysOreHoegh-Guldberg,chiefscientistofthesurveyanddirectoroftheGlobalChangeInstituteattheUniversityofQueensland."Understandingthestructureandfunctionofsuchreefsisoftheutmostimportanceifwearetounderpintheirresiliencetoglobalchange.""Thisinformationisnecessarytomakeinformeddecisionsabouthowmuch,andwhere,governmentsshouldinvesttoensurethefuturewell-beingofourplanet,"saysStephenCatlin,chiefexecutiveofCatlinGroupLimited,aBermuda-basedinsurancecompanythatsponsorsthesurvey.HowcoralreefmapsaremadeThecoralmappingeffortemploysaSeaviewSVIIunderwatercamera,whichhasarodandpropellerattachedtothebacktocreateasortofphotoscooter.ThreedigitalSLRcamerasencasedintheSVII"sglobe-shapedlenscapturehighresolution,360degreeimagesofreefs.DesignedbyCatlinSeaviewSurvey,thecamera"snewtechnologyhelpsshortensurveyingtimeoflarge,shallowwaterareasfrommonthstodays.Tomapsuchavastarea,scientist-diverstookphotographswhile"riding"thecameraatanaveragedepthofeightmeterswhiletravelingat4kph(KilometersperHour).Thousandsofimageswilleventuallybestitchedtogethertocreateawholepictureofthereefsystem.Theimageswillbeuploadedforviewingonthecompany"sdatabase—theGlobalReefRecord.SomeoftheimagescanbefoundonGoogleMaps.Markeachstatementaseithertrue(T)orfalse(F)accordingtothepassage.

判断题Would you like to orbit the Earth inside the International Space Station? Now you can take a space holiday—for a price. This is due to a recent decision by top space officials of the United States, Russia, Canada, Japan and the European Space Agency. Last April, American businessman Dennis Tito reportedly paid between twelve-million and twenty-million dollars to spend one week on the International Space Station. NASA had strongly objected to the Russian plan to permit a civilian on the costly research vehicle. After two years of negotiations, space officials have agreed on a process to train private citizens to take trips to the International Space Station. NASA recently agreed to conditions that will permit Russia to sell trips to the space station. The trips are planned by an American company called Space Adventures Limited of Arlington, Virginia. The company calls itself "the world's leading space tourism company." The company has sold a space trip to Mark Shuttleworth, a South African businessman. In April, Mister Shuttleworth will be launched into space from the Baikonur Cosmodrome in Kazakhstan. Yet, the average citizen will not be able to travel into space in the near future. Space Adventures Limited sells a training program for space flight that costs two-hundred-thousand dollars. That price does not include the cost of the trip to the International Space Station. That holiday in space costs twenty-million dollars. Candidates for adventure space travel trips must be in excellent health and must pass difficult health tests. They must receive a lot of training and all successful candidates who wish to travel to the International Space Station must be able to read and speak English.

判断题The stores in Downtown Manhattan are open round the clock.

判断题Alaska In 1959 Americans welcomed Alaska into the Union as the 49th state, symbolizing a change of attitude from that held in 1867, when the peninsula was purchased from Russia. Then, most Americans had little interest in 1,500,000 square kilometers "of icebergs and polar hears"—beyond Canada"s western borders, far from the settled areas of the United States. 16 Ice masses lie buried in the earth, which is permanently frozen to a depth of 90 or more meters. From early May until early August, the midnight sun never sets on this fiat, treeless region, but the sun cannot melt the icy soil more than two-thirds of a meter down. 17 According to estimates, 800,000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated. 18 It is believed that the Eskimos moved there from Mongolia or Siberia, probably crossing Bering Strait, named for Virus Bering, the Danish sea captain who discovered Alaska on his voyage for Russia in 1741. The Eskimos are the state"s earliest known inhabitants. Russian fur traders established settlements but, by the time Alaska was sold to the United States, most of the traders had departed. 19 Thousands of Americans rushed to the region on their way to Klondike; some never returned. Alaska was never completely cut off again, although even today transportation is a major problem. There are only two motor routes from the U.S. mainland, and within the state, every town has its own airfield. 20 The gold that changed life so suddenly for Alaska was soon ended, and although many stories about mining camps have become part of American literature, the gold from Alaskan earth contributed less to economic progress than the fish from Alaskan waters. The fish caught in a single year range in value from $80 million to $90 million. Fur-bearing animals are plentiful in the forests and streams, and valuable fur seals inhabit the waters. After fishing, the state"s chief industry is lumber and the production of wood pulp. In recent years, Alaska"s single most important resource has become oil. The state also has large deposits of coal, copper, gold and other minerals. Complete the article with the following sentences. There are two extra sentences that you do not need to use. A. Arctic Alaska has been the home of Eskimos for countless centuries. B. In those sections of the state which lie above the Arctic Circle, Alaska still is a land of icebergs and polar bears. C. In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border. D. The sheer weather has driven many gold diggers away. E. Alaska is America"s largest state, but only about 325,000 people live there. F. Nowadays Alaksa has become an exploration resort for millions of people to explore. G. Planes fly passengers, mail and freight to the most distant villages.

判断题In 10 years the ages of two brothers and two sisters will total 100. How much will their ages total in 7 years?

多选题-- Can I book a room from now until Friday? -- ______ -- What's the price? -- $128.75 not counting the service.

多选题______ turn up late at the meeting, he forget his relevant documents.

多选题The film Titanic tells about a very ______ love story which touches every spectator.

多选题______ her pen in ink, when she heard the tramping of little feet along the hall, and then a pounding at her door.