专题 高考真题阅读理解之科普类说明文学生版.docx

专题 高考真题阅读理解之科普类说明文学生版.docx

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专题高考真题阅读理解之科普类说明文学生版

专题高考真题阅读理解之科普类说明文

1.【湖北卷】D

Theoddnessoflifeinspaceneverquitegoesaway.Herearesomeexamples.

Firstconsidersomethingassimpleassleep.Itspositionpresentsitsownchallenges.Themainquestioniswhetheryouwantyourarmsinsideoroutsidethesleepingbag.Ifyouleaveyourarmsout,theyfloatfreeinzerogravity,oftengivingasleepingastronautthelookofafunnyballed（芭蕾）dancer.“I’maninsideguy,”MikeHopkinssays,whoreturnedfromasix-monthtourontheInternationalSpaceStation.“Iliketobewrappedup.”

Onthestation,theordinarybecomesstrange.TheexercisebikefortheAmericanastronautshasnohandlebars.Italsohasnoseat.Withnogravity,it’sjustaseasytopedalviolently.Youcanwatchamoviewhileyoupedalbyfloatingamicrocomputeranywhereyouwant.Butstationresidentshavetobecarefulaboutstayinginoneplacetoolong.Withoutgravitytohelpcirculateair,thecarbondioxideyouexhale（呼气）hasatendencytoformaninvisible（隐形的）cloudaroundyouhead.Youcanendupwithwhatastronautscallacarbon-dioxideheadache.

LeroyChiao,54,anAmericanretiredastronautafterfourflights,describeswhathappensevenbeforeyoufloatoutofyourseat,”Yourinnerearthinksyour’refalling.Meanwhileyoureyesaretellingyouyou’restandingstraight.Thatcanbeannoying—that’swhysomepeoplefeelsick.”Withinacoupledays—trulyterribledaysforsome—astronauts’brainslearntoignorethepanickysignalsfromtheinnerear,andspacesicknessdisappears.

Spacetravelcanbesodelightfulbutatthesametimeinvisiblydangerous.Forinstance,astronautslosebonemass.That’swhyexerciseisconsideredsovitalthatNationalAeronauticsandSpaceAdministration（NASA）putsitrightontheworkdayschedule.Thefocusonfitnessisasmuchaboutscienceandthefutureasitisaboutkeepinganyindividualastronautsreturnhome,and,moreimportantly,howtomaintainstrengthandfitnessforthetwoandahalfyearsormorethatitwouldtaketomakearound-triptoMars.

63.Whatisthemajorchallengetoastronautswhentheysleepinspace?

A.Decidingonapropersleepposition

B.Choosingacomfortablesleepingbag

C.Seekingawaytofallasleepquickly

D.Findingarighttimetogotosleep.

64.Theastronautswillsufferfromacarbon-dioxideheadachewhen_____.

 A.theycirclearoundontheirbikes

B.theyusemicrocomputerswithoutastop

C.theyexerciseinoneplaceforalongtime

D.theywatchamoviewhilepedaling

65.Someastronautsfeelsickonthestationduringthefirstfewdaysbecause_____.

A.theirsensesstopworking

B.theyhavetostandupstraight

C.theyfloatoutoftheirseatsunexpectedly

D.whethertheyareabletogobacktothestation

66.OneoftheNASA’smajorconcernsaboutastronautsis_____.

A.howmuchexercisetheydoonthestation

B.howtheycanremainhealthyforlonginspace

C.whethertheycanrecoverafterreturninghome

D.whethertheyareabletogobacktothestation

2.【北京卷】C

LifeintheClear

Transparentanimalsletlightpassthroughtheirbodiesthesamewaylightpassesthroughawindow.Theseanimalstypicallylivebetweenthesurfaceoftheoceanandadepthofabout3,300feet—asfarasmostlightcanreach.Mostofthemareextremelydelicateandcanbedamagedbyasimpletouch.SonkeJohnsen,ascientistinbiology,says,“Theseanimalslivethroughtheirlifealone.Theynevertouchanythingunlessthey’reeatingit,orunlesssomethingiseatingthem.”

Andtheyareasclearasglass.Howdoesananimalbecomesee-through?

It’strickierthanyoumightthink.

Theobjectsaroundyouarevisiblebecausetheyinteractwithlight.Lighttypicallytravelsinastraightline.Butsomematerialsslowandscatter（散射）light,bouncingitawayfromitsoriginalpath.Othersabsorblight,stoppingitdeadinitstracks.Bothscatteringandabsorptionmakeanobjectlookdifferentfromotherobjectsaroundit,soyoucanseeiteasily.

Butatransparentobjectdoesn’tabsorborscatterlight,atleastnotverymuch,Lightcanpassthroughitwithoutbendingorstopping.Thatmeansatransparentobjectdoesn’tlookverydifferentfromthesurroundingairorwater.Youdon’tseeit----youseethethingsbehindit.

Tobecometransparent,ananimalneedstokeepitsbodyfromabsorbingorscatteringlight.Livingmaterialscanstoplightbecausetheycontainpigments（色素）thatabsorbspecificcolorsoflight.Butatransparentanimaldoesn’thavepigments,soitstissueswon’tabsorblight.AccordingtoJohnsen,avoidingabsorptionisactuallyeasy.Therealchallengeispreventinglightfromscattering.

Animalsarebuiltofmanydifferentmaterials----skin,fat,andmore----andlightmovesthrougheachatadifferentspeed.Everytimelightmovesintoamaterialwithanewspeed,itbendsandscatters.Transparentanimalsusedifferenttrickstofightscattering.Someanimalsaresimplyverysmallorextremelyflat.Withoutmuchtissuetoscatterlight,itiseasiertobesee—through.Othersbuildalarge,clearmassofnon-livingjelly-lie（果冻状的）materialandspreadthemselvesoverit.

Largertransparentanimalshavethebiggestchallenge,becausetheyhavetomakeallthedifferenttissuesintheirbodiesslowdownlightexactlyasmuchaswaterdoes.Theyneedtolookuniform.Buthowthey’redoingitisstillunknown.Onethingisclearfortheselargeranimals,stayingtransparentisanactiveprocess.Whentheydie,theyturnanon-transparentmilkywhite.

63.AccordingtoParagraph1,transparentanimals_______.

A.stayingroupsB.canbeeasilydamaged

C.appearonlyindeepoceanD.arebeautifulcreatures

64.Theunderlinedword“dead”inParagraph3means__________.

A.silentlyB.gradually

C.regularlyD.completely

65.Onewayforananimaltobecometransparentisto________.

A.changethedirectionoflighttravel

B.gathermaterialstoscatterlight.

C.avoidtheabsorptionoflight

D.growbiggertostoplight.

66.Thelastparagraphtellsusthatlargertransparentanimals________.

A.movemoreslowlyindeepwater

B.staysee-throughevenafterdeath

C.producemoretissuesfortheirsurvival

D.takeeffectiveactiontoreducelightspreading

3.【江苏】B

IntheUnitedStatesalone,over100millioncell-phonesarethrownawayeachyear.Cell-phonesarepartofagrowingmountainofelectronicwastelikecomputersandpersonaldigitalassistants.Theelectronicwastestreamisincreasingthreetimesfasterthantraditionalgarbageasawhole.

Electronicdevicescontainvaluablemetalssuchasgoldandsilver.ASwissstudyreportedthatwhiletheweightofelectronicgoodsrepresentedbypreciousmetalswasrelativelysmallincomparisontototalwaste,theconcentration（含量）ofgoldandotherpreciousmetalswashigherinSo-callede-wastethaninnaturallyoccurringminerals.

Electronicwastesalsocontainmanypoisonousmetals.Evenwhenthemachinesarerecycledandtheharmfulmetalsremoved,therecyclingprocessofteniscarriedoutinpoorcountries,inpracticallyuncontrolledwayswhichallowmanypoisonoussubstancestoescapeintotheenvironment.

Creatingproductsoutofrawmaterialscreatesmuchmorewastematerial,upto100timesmore,thanthematerialcontainedinthefinishedproducts.Consideragainthecell-phone,andimaginetheminesthatproducedthosemetals,thefactoriesneededtomaketheboxandpackaging（包装）itcamein.Manywastesproducedintheproducingprocessareharmfulaswell.

TheU.S.EnvironmentalProtectionAgencynotesthatmostwasteisdangerousinthat“theproduction,distribution,anduseofproducts—aswellasmanagementoftheresultingwaste—allresultingreenhousegasrelease.”Individualscanreducetheircontributionbycreatinglesswasteatthestart—forinstance,buyingreusableproductsandrecycling.

Inmanycountriestheconceptofextendedproducerresponsibilityisbeingconsideredorhasbeenputinplaceasanincentive（动机）forreducingwaste.Ifproducersarerequiredtotakebackpackagingtheyusetoselltheirproducts,wouldtheyreducethepackaginginthefirstplace?

Governments’incentivetorequireproducerstotakeresponsibilityforthepackagingtheyproduceisusuallybasedonmoney.Why,theyask,shouldcitiesortownsberesponsibleforpayingtodealwiththebubblewrap（气泡垫）thatencasedyourtelevision?

Fromthegovernments’pointofview,aprimarygoaloflawsrequiringextendedproducerresponsibilityistotransferboththecostsandthephysicalresponsibilityofwastemanagementfromthegovernmentandtax-payersbacktotheproducers.

58.BymentioningtheSwissstudy,theauthorintendstotellusthat_________.

A.theweightofe-goodsisrathersmall

B.E-wastedeservestobemadegooduseof

C.naturalmineralscontainmorepreciousmetals

D.thepercentageofpreciousmetalsisheavyine-waste

59.Theresponsibilityofe-wastetreatmentshouldbeextended_________.

A.fromproducerstogovernments

B.fromgovernmentstoproducers

C.fromindividualstodistributors

D.fromdistributorstogovernments

60.Whatdoesthepassagemainlytalkabout?

A.Theincreaseine-waste.

B.Thecreationofe-waste.

C.Theseriousnessofe-waste.

D.Themanagementofe-waste.

4.C

Supposeyoubecomealeaderinanorganization.It’sverylikelythatyou’llwanttohavevolunteerstohelpwiththeorganization’sactivities.Todoso,itshouldhelptounderstandwhypeopleundertakevolunteerworkandwhatkeepstheirinterestinthework.

Let’sbeginwiththequestionofwhypeoplevolunteer.Researchershaveidentifiedseveralfactorsthatmotivatepeopletogetinvolved.Forexample,peoplevolunteertoexpresspersonalvaluesrelatedtounselfishness,toexpandtheir