上海高考英语选词填空专项练习.doc
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上海高考英语选词填空专项练习.doc
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SectionB
Directions:
Completethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed.
A.accurate
B.alteration
C.average
D.calculates
E.conceal
F.enormously
G.initial
H.intervals
I.merely
J.multiply
K.prediction
Beyondtwoorthreedays,theworld’sbestweatherforecastsarebasedonguesswork,andbeyondsixorseventheyareworthless.
TheButterflyEffectisthereason.Forsmallpiecesofweather—andtoaglobalforecaster,smallcanmeanthunderstormsandsnowstorms—any___41___failsrapidly.Errorsanduncertainties___42___,gatheringupwardthroughachainofunstablefeatures,fromdustdevils(尘旋风)andwindstormsuptocontinent-sizeeddies(旋风)___43___satellitescansee.
Themodernweathermodelsworkwithanetworkofpointsoftheorderofsixtymilesapart,andevenso,some___44___datahastobeguessed,sincegroundstationsandsatellitescannotseeeverywhere.Butsupposetheearthcouldbecoveredwithsensorsspacedonefootapart,risingatone-foot___45___allthewaytothetopoftheatmosphere.Supposeeverysensorgivesperfectly___46___readingsoftemperature,pressure,dampness,andanyotherquantityameteorologist(气象工作者)wouldwant.Exactlyatnoona(n)___47___powerfulcomputertakesallthedataand___48___whatwillhappenateachpointat12.01,then12.02,then12.03…
ThecomputerwillstillbeunabletopredictwhetherPrinceton,NewJersey,willhavesunorrainonadayonemonthaway.Atnoonthespacesbetweenthesensorswill___49___alterationsthatthecomputerwillnotknowabout,tinyvariationsfromthe___50___.By12.01,thosealterationswillalreadyhavecreatedsmallerrorsonefootaway.Soontheerrorswillhavemultipliedtotheten-footscale,andsoonuptothesizeoftheglobe.
Keys:
41-45KJIGH46-50AFDEC
SectionB
Directions:
Completethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed.
A.countless
B.exhausted
C.comparison
D.essential
E.estimates
F.distinctive
G.relatively
H.cleared
I.unfortunately
J.recycled
K.restricts
Rainforests,foundinEarth’stemperateandtropical(热带的)zones,aresomeofthemostbiologicallyvariedecosystemsontheplanet.Allrainforestssharecertain___41___features,includingaclosedcanopy,thedensevegetationofthetopbranchesthatformsaroofabovetheforestfloor,adampandwarmclimate,and___42___constanttemperaturesthroughouttheyear.Mostoftheforest’sinsectandanimallifegrowswellinthecanopy’sleafyandsunlitenvironment.Theforest’sgroundcover,bycomparison,issmall.Lessthan2percentofthesun’slightmakesitswaythroughthecanopyandthedarknessbelow.Thisdarkness,alongwiththepoorqualityofthesoils,___43___plantgrowth.
Rainforestsarea(n)___44___partofEarth’stotalecology.Hugeamountsofwaterareabsorbedintotreerootsand___45___intotheatmospherefromthetreeleavesthroughaprocesscalledtranspiration(蒸发).Treerootsalsofixthesoilinplaceandslowtherunoffofrainsintoriversandoceans.Throughtheprocessofphotosynthesis(光合作用),rainforestsabsorbmorecarbondioxideandgiveoffmoreoxygenthananyotherecosystem.
Therainforestsare___46___shrinkingatarapidrateasaresultoftheprofitableventuresoffarming,logging,andmining.Whentropicalrainforestsare___47___inordertoraisecattleandcrops,thenutrient-poorsoilsarequickly___48___.Whenfarmersmoveontonewareas,heavyrainsandbakingsunleavethelandfruitlessandlifeless.Loggingandminingcausesimilardamagetothelandanddestroytheterritoryof___49___millionsofbirds,insectsandanimals.Bysome___50___,anareaoftropicalrainforestthesizeofthestateofDelawaredisappearsinthiswayeverymonth.
Keys:
41-45FGKDJ
46-50IHBAE
SectionB
Directions:
Completethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed.
A.challengedB.functionsC.solvedD.deservesE.mirrors
F.practicalG.furtherH.urgeI.presenceJ.opposingK.survival
“Inwildernessisthepreservationoftheworld.”Thisisafamoussayingfromawriterregardedasoneofthefathersofenvironmentalism.Thefrequencywithwhichitisborrowed41aheateddebateonenvironmentalprotection:
whethertoplacewildernessattheheartofwhatistobepreserved.
AsJohnSauvenofGreenpeaceUKpointsout,thereisastrongappealinimagesofthewild,theuntouched;morethananythingelse,theyspeakofthenaturethatmanypeoplevaluemostdearly.The42toleavethesubjectofsuchimagesuntouchedisstrong,andthedangerexploitationbringstosuchlandscapesisreal.Someofthesewildernessesalsoperform43thathumansneed—therainforests,forexample,storecarboninvastquantities.
LeeLane,avisitingfellowattheHudsonInstitute,takesthe44view.Heacknowledgesthatwildernessesdoprovideusefulservices,suchaswaterconservation.Butthatisnot,heargues,areasontoavoidallhuman45,orindeedcommercialandindustrialexploitation.ThereareevermorepeopleontheEarth,andtheyreasonablyandrightfullywanttohavebetterlives,ratherthanmerelystrugglefor46.Whilethewaysofusingresourceshaveimproved,thereisstillagrowingneedforrawmaterials,andsomewildernessescontaintheminabundance.Iftheycanbetappedwithoutreducingtheservicesthosewildernessesprovide,theargumentgoes,thereisno47reasonnottodoso.Beinguntouchedisnot,initself,acharacteristicworthvaluingaboveallothers.
Ilookforwardtoseeingtheseviewstakenfurther,andtotheirbeing48bytheotherparticipants.Oneopinionisthatbothcasesneedtotakeonthequestionofspiritualvaluealittlemoredirectly.Andthereisa49questionastowhetherwildernessescanbeexploitedwithoutharm.
Thisisatopicthatcallsfornotonlyfreeexpressionoffeelings,butalsotheguidanceofreason.Whatpositionwildernessshouldenjoyinthepreservationoftheworldobviously50muchmoreseriousthinking.
KEYS
41. E 42. H 43. B 44. J 45. I 46. K 47. G 48. A 49. F 50. D
SectionB
Directions:
Completethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlybeusedonce.Notethatthereisonewordmorethanyouneed.
ApeakB.prospectC.intenseD.indicatingE.mildF.uncertaintyG.unusuallyH.complicatedI.appliedJ.prepareK.model
Adropinthesun'sradiationcancausecoldwintersinpartsofNorthAmericaandEurope,scientistssay,afindingthatcouldimprovelong-rangeforecastsandhelpcountries___41___forstorms.
Scientistshaveknownforalongtimethatthesunhasan11-yearcycleduringwhichradiationfromthesunreachesa(n)___42___thenfalls.Butdetectingaclearlinkofthecycletotheweatherhasprovedmuch___43___.
"Ourresearchnoticesalinkbetweensolaractivitiesandregionalwinterclimate,"leadauthorSarahInesonoftheUKMetOfficetoldthereportersinanemail.
Herteamfocusedonthedatafromtherecentminimumsolarradiationperiodduring2008-10,whichwasa(n)___44___calmperiodforthesunbutatthesametime,___45___wintersintheU.SandEuropewererecordedwhichbroughttroublestomanybusinessesandmadepeople’slivesdifficult.
Theresearchersfoundthatareductioninradiationfromthesuncanaffectwindpatterns,___46___coldwinters.
"Whileradiationlevelswon'ttelluswhattheday-to-dayweatherwillbe,theyprovidetheexciting___47___ofimprovedpredictionforwinterconditionsformonthsandevenyearsahead.Thesepredictionsplayanimportantroleinlong-termweatherplanning,"Inesonsaid.
Ineson'steamusedthedatainacomplexcomputerto___48___long-termweatherpatterns.Itsuccessfullyreproducedwhatscientistshadobservedhappeningintheupperatmosphereduringchangesinsolarradiation.Morestudywasneeded,though.Thekey___49___intheexperimentlayinthesatellitedataused,becauseitspans(跨度)onlyafewyears."Sotherearestillquestionsconcerningwhetherthecurrentresearchresultsareaccurateandwhethertheycanbe___50___toothersolarcycles,"shesaid.
41-50JAHGCDBKFI
SectionB
Directions:
Completethefollowingpassagebyusingthewordsinthebox.Eachwordcanonlyusedonce.Notethatthereisonewordmorethanyouneed.
A.lowering
B.conditions
C.warning
D.seemingly
E.inconclusive
F.frequently
G.reactions
H.alternative
I.interestingly
J.properties
K.mixing
Notsofarinthedistantpastastudyonwaterpollutionfoundthatcommon,everydaymakeupproductsbeingwasheddownthedrainwasendingupinwellanddrinkingwater.Nowastudyhasfoundthatpeoplepollutethemselves.Manyofthepollutantsarelinkedtocancerandotherserioushealth41.What’sthekeycauseofthispollution?
Commonhouseholditems,42,appeartobeusedmorebywomenthanmen.Theseincludemakeup,hairsprayandcommercial,chemically-madeperfumes.Theseareperfumesthatare43advertisedashavingsomesortofbeneficialeffectonthebodyandareevensuggestedasareplacementfornaturalessentialoils.Studiesontheeffectivenessoffragranceoilsandhealthbenefitshavebeen44,somethingneglectedtobementioned.Ifthechemicalscenthascancer-causingproperties,itmaynotmakesensetotryanduseitforhelpingyousleepor45yourbloodpressure.Manufacturersarguethattheriskisnon-existentasthelevelso
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