六級(jí)段落匹配閱讀練習(xí)題附答案

六級(jí)段落匹配閱讀練習(xí)題附答案

導(dǎo)讀：我根據(jù)大家的需要整理了一份關(guān)于《六級(jí)段落匹配閱讀練習(xí)題附答

案》的內(nèi)容，具體內(nèi)容：段落匹配題為英語(yǔ)六級(jí)考試的新題型，閱讀難度

大，對(duì)考生的整體閱讀能力有了更高的要求。下面我為大家?guī)?lái)，歡迎考

生參考練習(xí)。六級(jí)段落匹配閱讀練習(xí)題原文HowOzonePo...

段落匹配題為英語(yǔ)六級(jí)考試的新題型，閱讀難度大，對(duì)考生的整體閱讀

能力有了更高的要求。下面我為大家?guī)?lái)，歡迎考生參考練習(xí)。

六級(jí)段落匹配閱讀練習(xí)題原文

HowOzonePollutionWorks

A)TheweatherreportontheradioorTVtellsyouthatitisgoing

tobesunnyandhotandthatanorangeozonealerthasbeenissued.

Whatisozone?Whatdoesanorangealertmean?Whyshouldyoube

concernedaboutit?Inthisarticle,wewillexaminewhatozoneis,

howitisproduced,whathealthhazardsitposesandwhatyoucan

dotoreduceozonepollution.

B)Ozoneisamoleculeofthreeoxygenatomsboundtogether(03).

Itisunstableandhighlyreactive.Ozoneisusedasableach,a

deodorizingagent,andasterilizationagentforairanddrinking

water.Atlowconcentrations,itistoxic.Ozoneisfoundnaturally

insmallconcentrationsinthestratosphere,alayerofEarthsupper

atmosphere.Inthisupperatmosphere,ozoneismadewhenultraviolet

lightfromthesunsplitsanoxygenmolecule(02),formingtwosingle

oxygenatoms.Ifafreedatomcollideswithanoxygenmolecule,it

becomesozone.Stratosphericozonehasbeencalled〃good〃ozone

becauseitprotectstheEarthssurfacefromdangerousultraviolet

light.

C)Ozonecanalsobefoundinthetroposphere,thelowestlayer

oftheatmosphere.Troposphericozone(oftentermed〃bad〃ozone)

isman-made,aresultofairpollutionfrominternalcombustion

enginesandpowerplants.Automobileexhaustandindustrial

emissionsreleaseafamilyofnitrogenoxidegases(NOx)and

volatileorganiccompounds(VOC),by-productsofburninggasoline

andcoal.NOxandVOCcombinechemicallywithoxygentoformozone

duringsunny,high-temperatureconditionsoflatespring,summer

andearlyfall.Highlevelsofozoneareusuallyformedintheheat

oftheafternoonandearlyevening,dissipatingduringthecooler

nights.

D)Althoughozonepollutionisformedmainlyinurbanandsuburban

areas,itendsupinruralareasaswell,carriedbyprevailingwinds

orresultingfromcarsandtrucksthattravelintoruralareas.

Significantlevelsofozonepollutioncanbedetectedinruralareas

asfaras250milesdownwindfromurbanindustrialzones.

E)Youcanmakeozoneteststripstodetectandmonitorozone

levelsinyourownbackyardoraroundyourschool.Youwillneed

cornstarch,filterpaper(coffeefiltersworkwell)andpotassium

iodide(canbeorderedfromascienceeducationsuppliersuchas

CarolinaBiologicalSupplyorFisherScientific).Basically,you

makeapastefromwater,cornstarchandpotassium-iodide,andyou

paintthispasteonstripsoffilterpaper.Youthenexposethe

stripstotheairforeighthours.Ozoneintheairwillreactwith

thepotassiumiodidetochangethecolorofthestrip.Youwillalso

needtoknowtherelativehumidity,whichyoucangetfroma

newspaper,weatherbroadcastorhomeweatherstation.

F)Whenyouinhaleozone,ittravelsthroughoutyourrespiratory

tract.Becauseozoneisverycorrosive,itdamagesthebronchioles

andalveoliinyourlungs,airsacsthatareimportantforgas

exchange.Repeatedexposuretoozonecaninflamelungtissuesand

causerespiratoryinfections.

G)Ozoneexposurecanaggravateexistingrespiratoryconditions

suchasasthma,reduceyourlungfunctionandcapacityforexercise

andcausechestpainsandcoughing.Youngchildren,adultswhoare

activeoutdoorsandpeoplewithrespiratorydiseasesaremost

susceptibletothehighlevelsofozoneencounteredduringthe

summer.Inadditiontoeffectsonhumans,thecorrosivenatureof

ozonecandamageplantsandtrees.Highlevelsofozonecandestroy

agriculturalcropsandforestvegetation.

H)Toprotectyourselffromozoneexposure,youshouldbeaware

oftheAirQualityIndex(AQI)inyourareaeveryday一youcan

usuallyfinditinthenewspaperoronamorningweatherforecast

onTVorradio.YoushouldalsobefamiliarwiththeU.S.

EnvironmentalProtectionAgency(EPA)guideforozone-alertvalues.

I)WhatdothenumbersintheAQImean?TheAQImeasures

concentrationsoffiveairpollutants:ozone,sulfurdioxide,

particulatematter,carbonmonoxideandnitrogendioxide.TheEPA

haschosenthesepollutantsascriteriapollutants,buttheseare

notallofthepollutantsintheair.Theseconcentrationsare

comparedtoastandardsetoutinfederallaw.Anindexvalueof

100meansthatallofthecriteriapollutantsareatthemaximum

levelthatisconsideredsafeforthemajorityofthepopulation.

Toreduceyourexposuretoozone,youshouldavoidexercisingduring

afternoonandearlyeveninghoursinthesummer.

J)Thereareseveralwaysyoucanhelptodecreaseozonepollution.

Limitusingyourautomobileduringafternoonandearlyeveninghours

inthelatespring,summerandearlyfall.Donotuse

gasoline-poweredlawnequipmentduringthesetimes.Donotfuelyour

carduringthesetimes.Donotlightfiresoroutdoorgrillsduring

thesetimes.Keeptheengineofyourcarorboattuned.Makesure

thatyourtiresareproperlyinflated.Useenvironmentallysafe

paints,cleaningandofficeproducts(someofthesechemicalsare

sourcesofVOC).

K)Besidespersonalattemptstoreduceozonepollution,theEPA

hasinitiatedmorestringentair-qualitystandards(suchasthe

CleanAirActanditsmodifications)toreduceairpollution.

Compliancewiththesestandardsbyindustries,manufacturersand

stateandlocalgovernmentshassignificantlyreducedthelevels

ofmanycommonairpollutants.

L)Withcontinuedconservationandreductionpractices,adherence

toozone-pollutionwarnings,researchandgovernmentregulation,

ozone-pollutionlevelsshould

continuetofall.Perhapsfuturegenerationswillnotbe

threatenedbythisenvironmentalpollutant.

M)Thethingthatdetermineswhetherozoneisgoodorbadisits

location.Ozoneisgood,,whenitisinthestratosphere.The

stratosphereisalayeroftheatmospherestartingatthelevelof

about6miles(about10kilometers)abovesealevel.The

stratospherenaturallycontainsaboutsixpartspermillionofozone,

andthisozoneisverybeneficialbecauseitabsorbsUVradiation

andpreventsitfromreachingus.

N)Ozoneis〃bad〃whenitisatgroundlevel.Ozoneisavery

reactivegasthatishardonlungtissue.Italsodamagesplants

andbuildings.Anyozoneatgroundlevelisaproblem.Unfortunately,

chemicalsincarexhaustandchemicalsproducedbysomeindustries

reactwithlighttoproducelotsofozoneatgroundlevel.Incities,

theozonelevelcanrisetoapointwhereitbecomeshazardousto

ourhealth.Thatswhenyouhearaboutanozonewarningonthenews.

六級(jí)段落匹配閱讀練習(xí)題目

1.Whenultravioletraysfromthesunseparateanoxygenmolecule

intotwosingleoxygenatomsinthestratosphere,thecombination

ofasingleoxygenatomandanoxygenmoleculeformsozone.

2.Youcanmakeozoneteststripsbyyourselftofindoutabout

ozonelevelsinyourownlocale.

3.Long-timeexposuretoozoneisbadlyharmfultoourrespiratory

system.

4.Chemicalsinindustrialwastegasandvehicleexhaustreact

withlighttoformlotsofozoneatgroundlevel.

5.Internalcombustionenginesandpowerplantscausethe

artificialtroposphericozone,alsoknownas〃bad〃ozone.

6.OzoneisveryhelpfulbecauseitabsorbsUVradiationand

separatesusfromit.

7.Usinggasoline-poweredlawnequipmentinthelatespring,

summerandearlyfallmayincreaseozonepollution.

8.Ozonepollutionoccursinurbanandsuburbanareasaswellas

inruralareas.

9.Inordertodecreaseozonepollution,theEPAhassetupmore

rigorousair-qualitystandards.

10.PaycloseattentiontotheAirQualityIndexinyourareaevery

daycankeepyouawayfromozoneexposure.

六級(jí)段落匹配閱讀練習(xí)題答案

1.B本題答案的信息來(lái)自B段的倒數(shù)第二、三句話。原文中提到太陽(yáng)

紫外線將氧分子分成了兩個(gè)單獨(dú)的氧原子，氧原子與氧分子再結(jié)合就生

成了臭氧。題干正好表達(dá)了這個(gè)意思。ultravioletrays即是原文中的

ultravioletlighto

2.E本題答案的信息來(lái)自E段第一句話。題目中的findoutabout意

為“弄清有關(guān)的情況"，和原文中的detectandmonitor含義相對(duì)應(yīng);題

目中的inyourownlocale和原文中的inyourownbackyard相對(duì)應(yīng)。

3.F本題答案的信息來(lái)自F段。F段提到人吸入臭氧后，它可以貫穿你

的呼吸系統(tǒng)。接著提到它可能損害細(xì)支氣管、肺部等呼吸系統(tǒng)的部位，故

可知長(zhǎng)期暴露在臭氧下有損呼吸系統(tǒng)。

4.N本題答案的信息來(lái)自N段第五句話