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网络协议的三个要素

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语法、语义、同步

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Californiaisalandofvarietyandcontrast.Almosteverytypeofphysicallandfeature,sortofarcticicefieldsandtropicaljunglescanbefoundwithinitsborders.Sharplycontrastingtypesoflandoftenlieveryclosetooneanother.PeoplelivinginBakersfield,forinstance,canvisitthePacificOceanandthecoastalplain,thefertileSanJoaquinValley,thearidMojaveDesert,andthehighSierraNevada,allwithinaradiusofabout100miles.Inotherareasitispossibletogosnowskiinginthemorningandsurfingintheeveningofthesameday,withouthavingtotravellongdistance.ContrastaboundsinCalifornia.ThehighestpointintheUnitedStates(outsideAlaska)isinCalifornia,andsoisthelowestpoint(includingAlaska)。MountWhitney,14,494feetabovesealevel,isseparatedfromDeathValley,282feetbelowsealevel,byadistanceofonly100miles.Thetwoareashaveadifferenceinaltitudeofalmostthreemiles.Californiahasdeep,clearmountainlakeslikeLakeTahoe,thedeepestinthecountry,butitalsohasshallow,saltydesertlakes.IthasLakeTulainyo,12,020feetabovesealevel,andthelowestlakeinthecountry,theSaltonSea,236feetbelowsealevel.Someofitslakes,likeOwensLakeinDeathValley,arenotlakesatall:theyaredrieduplakebeds.Inadditiontomountains,lakes,valleys,deserts,andplateaus,CaliforniahasitsPacificcoastline,stretchinglongerthanthecoastlinesofOregonandWashingtoncombined. 1.WhichofthefollowingisthelowestpointintheUnitedStates? A.LakeTulainyoB.MojavedesertC.DeathValleyD.TheSaltonSea 2.WhereisthehighestpointintheUnitedStateslocated? A.LakeTahoe. B.SierraNevada.C.MountWhitney. D.Alaska. 3.HowfarawayisDeathValleyfromMountWhitney? A.About3miles. D.14,494feet. 4.WhichofthefollowingisNOTmentionedinthepassageasbeingwithinaradiusofabout100milesofBakersfield? A.ThePacificOcean. B.SanJoaquinValley. C.MojaveDesert. D.OregonandWashington. 5.WhichstatementbestdemonstratesthatCaliforniaisalandofvarietyandcontrast? A.ThehighestlakeinCaliforniaisLakeTulainyo. B.ItispossibletogosurfingandsnowskiinginsomepartsofCaliforniawithouthavingtotravellongdistance. C.SierraNevada,SanJoaquinValley,MojaveDesertandthePacificOceanallliewithinaradiusofabout100miles. D.OwensLake,inDeathValley,isnotreallyalakeatall.
试题分类: 专业英语八级
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试题分类: 国家电网招聘考试
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Passage3 Questions11to15arebasedonthefollowingpassage: Thecowboyistheheroofmanymovies,.Heis,eventoday,asymbolofcourageandadventure.Butwhatwasthelifeofthecowboyreallylike? Thecowboy’sjobisclearfromthewordcowboy.Cowboyweremenwhotookcareofcowsandothercattle.ThecattlewereintheWestandinTexas.PeopleinthecitiesoftheEastwantedbeefthesecattle.Trainscouldtakethecattleeast.Butfirstthecattlehadtogettothetrains.Partofthecowboy’sjobwastotakethecattlehundredsofmilestotherailroadtown.Thetripswerecalledcattledrivers.Acattledriveusuallytookseveralmonths.Cowboysrodeforsixteenhoursaday.Becausetheyrodesomuch,eachcowboybroughtalongabouteighthorses.Acowboychangedhorsesseveraltimeseachday. Thecowboyshadtomakesurethatcattlearrivedsafely.Beforestartingonadrive,thecowboysbrandedthecattle.Theyburnedamarkonthecattletoshowwhotheybelongedto.Butthesemarksdidn’tstoprustlers,orcattlethieves.Cowboyshadtoprotectthecattlefromrustlers.Rustlersmadethedangeroustripevenmoredangerous. Eventhoughtheirworkwasverydifficultanddangerous,cowboysdidnotearnmuchmoney.Theywerepaidbadly.Yetcowboyslikedtheirwayoflife.Theylivedinawildandopencountry.Theylivedalifeofadventureandfreedom. 11.Acowboyisasymbolof. A.courageandadventureB.ahardlifeandbigpay C.moviesinthepastD.cowsandothercattle 12.Thecowboys’jobwas. A.tobeaheroinreallifeB.tobeaheroofthemovie C.totakecareofcattleD.tobeadangerousrustler 13.Duringacattledriver,cowboystookagroupofcowsfromawildandopencountryto. A.theWeststatesandTexasB.thecitiesoftheEastStates C.thepeoplewhoeatbeefincitiesD.therailroadtownshundredmilesaway 14.Ontheirwayofcattledrivers,thecowboysprotectedthecattleby. A.burningamarkontheircowsB.keepinganeyeoncattlethieves C.makingthetripmoredangerousD.lookingaftereightcowseachperson 15.Cowboysenjoyedthemselvesbecause. A.theylikedtheirwayoflifeB.theymadealotofmoney C.theyhadavarydifficultjobD.theywereheroesinmovies
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Inrecentdecades,thedisabilityrightsmovementhasbeenorganizedtoflightagainsttheseinfringements(侵害)ofcivilrights.Congressrespondedbypassingmajorlegislationrecognizingpeoplewithdisabilitiesasprotectedclassundercivilrightsstatutes. Stilltoday,peoplewithdisabilitiesmustfighttolivetheirlivesindependently.ItisestimatedthatmorethanhalfofqualifiedAmericanswithdisabilitiesareunemployed,andamajorityofthosewhodoworkareunderemployed.Abouttwo-thirdsliveatorbelowtheofficialpovertylevel. Significantbarriers,especiallyintransportationandpublicawareness,preventdisabledpeoplefromtakingpartinsociety.Forexample,whilenolongerprohibitedbylawfrommarrying,apersonwithnoaccesstotransportationiseffectivelyexcludedfromcommunityandsocialactivitieswhichmightleadtothedevelopmentoflong-termrelationships. Itwillonlybewhenpublicattitudesadvanceasfaraslawsarethatdisabledpeoplewillbefullyabletotaketotheirrightplaceinsociety. 16.”developmental”disability. 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试题分类: 大学英语四级
练习次数:0次
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