问答题She washed us in a river of make-believe.

问答题After three days in Japan, the spinal column becomes extraordinarily flexible.

问答题…and rushing them through with a magnificent dash and daring and a recklessness of cost or consequences.

问答题Interlanguage

问答题Do you think there is any true synonym in English? Why?

问答题Little donkeys threaded their way among the throngs of people.

问答题Arbitrariness at the syntactic level

问答题Scattered among notations about the weather and the tedious mining-camp meals lies an entry noting a story he had heard that day.

问答题It reduced the whole aspiration of man to a macabre and depressing joke.

问答题The geographic core, in Twain’s early years, was the great valley of the Mississippi River, main artery of transportation in the young nation’s heart.

问答题Every society is really governed by hidden laws, by unspoken but profound assumptions on the part of the people.

复合题GeologyandLandscapePara.1Mostpeopleconsiderthelandscapetobeunchanging,butEarthisadynamicbody,anditssurfaceiscontinuallyaltering—slowlyonthehumantimescale,butrelativelyrapidlywhencomparedtothegreatageofEarth(about4,500billionyears).Therearetwoprincipalinfluencesthatshapetheterrain:constructiveprocessessuchasuplift,whichcreatenewlandscapefeatures,anddestructiveforcessuchaserosion,whichgraduallywearawayexposedlandforms.Para.2Hillsandmountainsareoftenregardedastheepitomeofpermanence,successfullyresistingthedestructiveforcesofnature,butinfacttheytendtoberelativelyshort-livedingeologicalterms.Asageneralrule,thehigheramountainis,themorerecentlyitwasformed;forexample,thehighmountainsoftheHimalayasareonlyabout50millionyearsold.Lowermountainstendtobeolder,andareoftentheerodedrelicsofmuchhighermountainchains.About400millionyearsago,whenthepresent-daycontinentsofNorthAmericaandEuropewerejoined,theCaledonianmountainchainwasthesamesizeasthemodernHimalayas.Today,however,therelicsoftheCaledonianorogeny(mountain-buildingperiod)existasthecomparativelylowmountainsofGreenland,thenorthernAppalachiansintheUnitedStates,theScottishHighlands,andtheNorwegiancoastalplateau.Para.3TheEarthscrustisthoughttobedividedintohuge,movablesegments,calledplates,whichfloatonasoftplasticlayerofrock.Somemountainswereformedasaresultoftheseplatescrashingintoeachotherandforcinguptherockattheplatemargins.Inthisprocess,sedimentaryrocksthatoriginallyformedontheseabedmaybefoldedupwardstoaltitudesofmorethan26,000feet.Othermountainsmayberaisedbyearthquakes,whichfracturetheEarthscrustandcandisplaceenoughrocktoproduceblockmountains.Athirdtypeofmountainmaybeformedasaresultofvolcanicactivitywhichoccursinregionsofactivefoldmountainbelts,suchasintheCascadeRangeofwesternNorthAmerica.TheCascadesaremadeupoflavasandvolcanicmaterials.Manyofthepeaksareextinctvolcanoes.Para.4Whateverthereasonformountainformation,assoonaslandrisesabovesealevelitissubjectedtodestructiveforces.Theexposedrocksareattackedbythevariousweatherprocessesandgraduallybrokendownintofragments,whicharethencarriedawayandlaterdepositedassediments.Thus,anylandscaperepresentsonlyatemporarystageinthecontinuousbattlebetweentheforcesofupliftandthoseoferosion.Para.5Theweather,initsmanyforms,isthemainagentoferosion.Rainwashesawayloosesoilandpenetratescracksintherocks.Carbondioxideintheairreactswiththerainwater,formingaweakacid(carbonicacid)thatmaychemicallyattacktherocks.Therainseepsundergroundandthewatermayreappearlaterassprings.Thesespringsarethesourcesofstreamsandrivers,whichcutthroughtherocksandcarryawaydebrisfromthemountainstothelowlands.Para.6Underverycoldconditions,rockscanbeshatteredbyiceandfrost.Glaciersmayforminpermanentlycoldareas,andtheseslowlymovingmassesoficecutoutvalleys,carryingwiththemhugequantitiesoferodedrockdebris.Indryareasthewindistheprincipalagentoferosion.Itcarriesfineparticlesofsand,whichbombardexposedrocksurfaces,therebywearingthemintoyetmoresand.Evenlivingthingscontributetotheformationoflandscapes.Treerootsforcetheirwayintocracksinrocksand,insodoing,speedtheirsplitting.Incontrast,therootsofgrassesandothersmallplantsmayhelptoholdloosesoilfragmentstogether,therebyhelpingtopreventerosionbythewind.

复合题Much has been depicted in movies and print, of the roles played by women in America’s early development, and there are many women who have achieved recognition for their individual contributions. B

复合题Linguists have understood for decades that language and thought are closely related. Humans construct reality using thought and express these thoughts through the use of language. Edward Sapir and

复合题DidBirdsEvolvefromDinosaurs?Para.1Inthemid-1800s,scientistsdiscoveredthecompleteskeletonofadinosaurcalledArchaeopteryxlithographica.Thecreature,whichmighthavegrowntoamaximumsizeofaboutoneandahalffeet,wasthoughttohavelivedapproximately150millionyearsagoand,curiously,hadfeaturesthatresemblednotonlydinosaurs，butmodernbirdsaswell.Forinstance,whileithadsharpteethandabonytaillikethedinosaursofitstime,italsohadwingsandfeatherslikemodernbirds.Despitethesesimilaritiestobirds,thegeneralconsensuswithinthescientificcommunitywasthattheclosestlivingrelativesofdinosaurswerereptiles,likelizardsandalligators.Itwasn’tuntil1969,whenpaleontologistsdiscoveredthefossilsofadinosaurcalledDeinonychusantirrhopus,thatthedebateaboutwhetherornotbirdsevolvedfromdinosaurswasreopened.Para.2Themainproblemwiththetheorylinkingdinosaurstomodernbirds—whichwasalsothemainsupportforargumentsthatreptileswere,infact,theclosestlivingancestorsofdinosaurs—wasthebeliefthatdinosaursdidnothavefurculae,orwishbones.Themainfunctionofthisfork-shapedbone,whichislocatedatthebaseoftheneckonbirds,istoreinforcetheskeletonagainstthemanystressesofflight.However,fossilevidencefoundinrecentyearshasrevealedthatmanydinosaursdidindeedhavefurculae.Forexample,thedinosaursintheDromaeosauridaefamily,agroupofbird-likedinosaurs,areallbelievedtohavehadfurculae.Thisdiscoverycontradictsthetheorythatthebonesareuniquetobirds.Para.3Inadditiontotheobservationoffurculaeindinosaurfossils,paleontologistshaveidentifiedanumberofotherstructuralsimilaritiesbetweenbirdsanddinosaurs.Forexample,comparisonsbetweentheskeletonsofbirdsandthoseofdinosaurslikeVelociraptormongoliensisandDeinonychusrevealthatbirdsanddinosaurssharemanyuniqueskeletalfeatures.Forinstance,Velociraptorfossilsshowthatthecreature’sfrontlimbs,theconstructionofwhichwouldhavepresumablyallowedforgreatflexibility,aresimilartothoseofmodernbirds.Ontheotherhand,nosuchlikenessesexistbetweendinosaursandearlyreptiles.Para.4Suchevidenceofstructuralsimilaritiesisonlyoneofmanyreasonsthatpaleontologistsnowgenerallyagreethatbirdsevolvedfromdinosaurs.Anothercompellingpieceofevidenceisthepresenceoffeathersinbothorganisms.FossilsofArchaeopteryx,whichmanyexpertsnowconsidertobebothadinosaurandabird,featureimprintsoffeathersthatcloselyresemblethosefoundonmodernbirds.SincethediscoveryofArchacopteryx,paleontologistshavediscoveredfossilsdemonstratingthatanumberofotherdinosaursthatwerelikelyrelatedtoArchacopteryxalsohadfeathers.Furthermore,eventhefossilsofdinosaursthatwerenotrelatedtoArchaeopteryx,suchasTyrannosaurusrex,havebeenfoundtohavelongfeather-likestructuresthatarecommonlyreferredtoasprotofeathers,Accordingtomanypaleontologists,themainfunctionofprotofeatherswastoinsulatedinosaursfromcoldtemperatures,nottoassistwithflight,whichaccountsforwhymanyflightlessdinosaursmayhavehadthem.Becausenootheranimalsbesidesdinosaursandbirdshavebeenfoundtohavefeathers,scientistsbelievethattheexistenceoffeathersisastrongindicationthatthetwoanimalsaredirectlyrelated.Para.5Paleontologistshavealsofoundevidencethatlungsofdinosaurswereshapedsimilarlytobirds’lungs.Mostanimals,includingprimates,lizards,andfrogs,havelungswithtwocompartments.However,birdshaveextraairsacsinfrontofandbehindtheirlungsthatallowthemtokeeptheirlungsinflatedconstantly.Studiesofdinosaurskeletonsindicatethatsomedinosaursalsohadlungswithextrachambers.Likethesimilaritiesinskeletalstructuresandtheexistenceoffeathersinbothgroups,thefactthatonlybirdsanddinosaurshavetheseextralungchambersrevealsthatbirdsprobablyevolvedfromdinosaursandarethustheirclosestlivingrelatives.

复合题Unlessyouhavegonethroughtheexperienceyourself,orwatchedalovedonesstruggle,youreallyhaveno&

复合题By far the most common snake in Britain is the adder. In Scotland, in fact, there are no other snakes at all. The adder is also the only British snake with a poisonous bite. It can be found almo

复合题Before the end of the eighteenth century, the economy of England was primarily agricultural, transportation was poor, and manufacturing was carried out in the laborers’ homes. The invention of the

复合题Nursing at Beth Israel Hospital produces the best patient care possible. If we are to solve the nursing shortage, hospital administration and doctors everywhere would do well to follow Beth Israel’

复合题GrowupColored[A]Youwouldn’tknowPiedmontanymore—myPiedmont,Imean—thetowninWestVirginiawherelearnedtobeacoloredboy.[B]The1950sinPiedmontwasatimetoremember,oratleasttome.PeoplewerealwaysproudtobefromPiedmont—lyingatthefootofamountain,onthebanksofthemightyPotomac.WeknewGodgaveAmericanomorebeautifullocation.Ineverknewcoloredpeopleanywherewhowerecrazieraboutmountainsandwater,flowersandtrees,fishingandhunting.Foraslongasanyonecouldremember,wecouldouthunt,outshoot,andoutswimthewhiteboysinthevalley.[C]ThesocialstructureofPiedmontwassomethingweknewlikethebackofourhands.Itwasanimmigranttown;whitePiedmontwasItalianandIrish,withahandfulofwealthyWASPsonEastHampshireStreet，and“ethnic”neighborhoodsofworking-classpeopleeverywhereelse,coloredandwhite.[D]Foraslongasanyonecanremember,Piedmont’scharacterhasbeencompletelyboundupwiththeWestvacopapermill:itsprosperouspastanddoubtfulfuture.Atfirstglance,thetownisatypicaldyingmillcenter.Manyoncebeautifulbuildingsstandempty,evidencingabygonetimeofspiritandpride.ThebighousesonEastHampshireStreetarenolongerproud,astheywerewhenIwasakid.[E]LiketheItaliansandtheIrish,mostofthecoloredpeoplemigratedtoPiedmontattheturnofthe20thcenturytoworkatthepapermill,whichopenedin1888.Allthecoloredmenatthepapermillworkedon“theplatform”—loadingpaperintotruckuntilthecraftunionswerefinallyintegratedin1968.LoadingiswhatDaddydideveryworkingdayofhislife.That’swhatalmosteverycoloredgrown-upIknewdid.[F]Coloredpeoplelivedinthreeneighborhoodsthatwereclearlyseparated.WelcometotheColoredZone,alargestretchedbannercouldhavesaid.Anditfeltgoodinthere,likewalkingaroundyourhouseinbarefeetandunderwear，orsnoringrightoutloudonthecouchinfrontoftheTV--envelopedbythecomfortsofhome,thewarmthofthoseyoulove.[G]Ofcourse,thecoloredworldwasnotsomuchaneighborhoodasaconditionofexistence.Andthoughourownworldwasseeminglyself-contained,itimpactedonthewhiteworldofPiedmontinalmosteverydirection.Certainly,thebordersofourworldseemedtobeimpactedonwhensomewhitemanorwomanshowedupwhereheorshedidnotbelong,suchasattheblackLegionHall.Ourspacewasviolatedwhenoneofthemshowedupatadanceoraparty.Therhythmswouldbeoff.Themusicwouldsoundnotquiteright.Everybodywouldleaveearly.[H]Before1955,mostwhitepeoplewerejustshadowypresencesinourworld,vaguefiguresofpowerlikeremotebossesatthemillorclerksatthebank.Therewereexceptions,ofcourse,thewhitepeoplewhowouldcomeintoourworldinroutine,everydaywaysweallunderstood.Mr.MailMan,Mr.InsuranceMan,Mr.White-and-ChocolateMilkMan,Mr.LandlordManMr.PoliceMan:wecalledwhitepeoplebytheirtrade,likecharactersinamysteryplay.Mr.InsuranceManwouldcomebyeveryotherweektocollectpaymentsoncollegeordeathpolicies,sometimes50centsorless.[I]“it’snodisgracetobecolored,”theblackentertainerBertWilliamsfamouslyobservedearlyinthecentury,“butitisawfullyinconvenient.”Formostofmychildhood,wecouldn’teatinrestaurantsorsleepinhotels,wecouldn’tusecertainbathroomsortryonclothesinstores.Mamainsistedthatwedressupwhenwewenttoshop.Shewascarefullydressedwhenshewenttoclothingstores,andworewhitepadscalledshieldsunderherarmssoherdressorblousewouldshownosweat.“We’dliketotrythison,”she’dsaycarefully,utteringherwordspreciselyandproperly.“Wedon’tbuyclotheswecan’ttryon,”she’dsaywhentheydeclined,andwe’dwalkoutinMama’sdignifiedmanner，Shepreferredtoshopwherewehadanaccountandwhereeveryoneknewwhoshewas.[J]AttheCut-RateDrugStore,ononecoloredwasallowedtositdownatthecounterortables,withoneexception:myfather.Idon’tknowforcertainwhyCarDadisman,theowner,wouldn’tstopDaddyfromsittingdown.ButIbelieveitwasinpartbecauseDaddywassolight-colored,andinpartbecause,duringhisshiftatthephonecompany,hepickedupordersforfoodandcoffeefortheoperators.Coloredpeopleweresupposedtostandatthecounter,gettheirfoodtogo,andleave.EvenwhenYoungDocBesswouldsetupthebasketballteamwithfreeCokesafteroneofmanyvictories,thecoloredplayershadtostandaroundanddrinkoutofpapercupswhilethewhiteplayersandcheerleaderssatdownincomfortablechairsanddrankoutofglasses.[K]Icouldn’thavebeenmucholderthanfiveorsixasIsatwithmyfatherattheCut-Rateoneafternoon,enjoyingicecream.Mr.Wilson,astony-facedIrishman,walkedby.“Hello,Mr.Wilson,”myfathersaid.“Hello,George.”[L]Iwasgenuinelypuzzled.Mr.Wilsonmusthaveconfusedmyfatherwithsomebodyelse,butwho?Thereweren’tanyGeorgesamongthecoloredpeopleinPiedmont.“Whydon’tyoutellhimyourname,Daddy?”Iaskedloudly.“Yournameisn’tGeorge.”“Heknowsmyname,boy,”myfathersaidafteralongpause.“HecallsallcoloredpeopleGeorge.”[M]Iknewwewouldn’ttalkaboutitagain;evenatthatage,Iwasgiventounderstandthatthereweresomesubjectsitdidn’tdotoworrytodeathabout.NowthatIhavechildren,Irealizethatwhatdistressedmyfatherwasn’tsomuchtheMr.Wilsonsoftheworldasthepainfulobligationtoexplaintheracialfactsoflifetosomeonewhohadn’tquitelearnedthemyet.MaybeMr.Wilsoncouldn’thurtmyfatherbycallinghimGeorge;butIhurthimbyaskingtoknowwhy.