2026年四川省初中英语第2单元阅读理解专项训练

2026年四川省初中英语第2单元阅读理解专项训练一、单项选择题（每题2分，共20分）1.Inthepassage,"theGreatBarrierReef"ismentionedasanexampleofaplacewherecoralisfacingseriousthreats.Whatdoesthismainlyshowaboutthetext'stopic?A.Thetextfocusesonthebeautyofcoralreefs.B.Thetextdiscussestheenvironmentalproblemsaffectingcoral.C.Thetextcomparescoralreefstoothermarineecosystems.D.ThetextsuggeststhatcoralreefsareonlyfoundinAustralia.Answer:BExplanation:ThepassageusestheGreatBarrierReefasaspecificcasestudytoillustratethethreatscoralreefsareexperiencing,suchasclimatechangeandpollution.Thisindicatesthetext'sprimaryfocusisonenvironmentalchallengesratherthancoral'saestheticvalueorcomparisonstootherecosystems.OptionAisincorrectbecausethepassageemphasizesproblems,notbeauty.OptionCisirrelevantasthetextdoesnotcomparecoralreefstoothermarinelife.OptionDisfalsebecausecoralreefsexistinmanypartsoftheworld,notjustAustralia.2.Theword"decreased"inthesecondparagraphisclosestinmeaningtowhichofthefollowing?A.IncreasedB.DisappearedC.ReducedD.ExpandedAnswer:CExplanation:"Decreased"meanstobecomesmallerorlowerinamount.OptionA("increased")istheopposite.OptionB("disappeared")istooextreme,asthetextsuggestsagradualdecline,notcompletedisappearance.OptionD("expanded")contradictstheideaofreduction.OnlyC("reduced")alignswiththemeaningof"decreased."3.Accordingtothepassage,whatisonewaypeoplecanhelpprotectcoralreefs?A.Buildingmorecoastalresorts.B.Usingmoreplasticproducts.C.Reducingcarbonemissions.D.Removingallfishfromthereefs.Answer:CExplanation:Thepassagementionsthatreducingcarbonemissionshelpsslowdownclimatechange,whichinturnprotectscoralreefs.OptionAisharmfulasresortscanleadtopollution.OptionBworsensplasticpollution,whichharmsreefs.OptionDisincorrectbecauseoverfishingisaproblem,butremovingallfishwoulddestroytheecosystem.OnlyCisaviablesolution.4.Whatisthemainpurposeofthethirdparagraph?A.Todescribethetypesoffishthatliveincoralreefs.B.Toexplainwhycoralreefsareimportantforbiodiversity.C.Tolistthecausesofcoralbleaching.D.Tosuggestwaystomakemoneyfromcoralreefs.Answer:BExplanation:Thethirdparagraphhighlightsthevarietyofspeciesthatdependoncoralreefsforsurvival,emphasizingtheirroleinmarinebiodiversity.OptionAistoonarrow,astheparagraphfocusesonbroaderecologicalimportance.OptionCisincorrectbecausethecausesofbleachingarediscussedelsewhere.OptionDcontradictsthepassage'sconservationmessage.5.Theauthor'stoneinthepassagecanbestbedescribedas:A.HumorousB.IndifferentC.ConcernedD.ExcitedAnswer:CExplanation:Thepassagerepeatedlymentionsthreatstocoralreefsandcallsforaction,showingtheauthor'sconcernabouttheirfuture.OptionAisincorrectasthetextisserious.OptionBiswrongbecausetheauthorclearlycaresabouttheissue.OptionDisunrelatedtothepassage'stone.6.Whatdoesthepassagesuggestaboutthefutureofcoralreefsifcurrenttrendscontinue?A.Theywillthriveduetohumanefforts.B.Theywillslowlyrecoverontheirown.C.Theywillfacemoreseveredamage.D.Theywillbecomemorepopularfortourism.Answer:CExplanation:Thepassagewarnsthatwithoutintervention,coralreefswillcontinuetodeteriorateduetoclimatechangeandpollution.OptionAisunlikelyasthetexthighlightshumanimpactasaproblem.OptionBcontradictsthepassage'surgency.OptionDisunrelatedtothetext'sfocus.7.Thephrase"adelicatebalance"inthefirstparagraphrefersto:A.Thedifficultyofswimmingincoralreefs.B.Thesensitiverelationshipbetweencoralandmarinelife.C.Thebalanceoftemperaturesintheocean.D.Thebalanceoftourismandconservationefforts.Answer:BExplanation:"Adelicatebalance"describeshowcoralreefsrelyonspecificconditions(liketemperatureandwaterquality)tosupportdiversemarinelife.OptionAisirrelevant.OptionCistoonarrow.OptionDisnotmentionedinthetext.8.WhydoesthepassagementiontheGreatBarrierReefspecifically?A.Itisthelargestcoralreefintheworld.B.Itistheonlyreefaffectedbyclimatechange.C.Itservesasareal-worldexampleofthreats.D.Itisthemostpopulartouristdestination.Answer:CExplanation:ThepassageusestheGreatBarrierReeftodemonstratehowcoralisthreatenedglobally,makingitarelatableandauthoritativeexample.OptionAistruebutnotthemainreason.OptionBisfalseasmanyreefsfacesimilarissues.OptionDisunrelatedtothepassage'spurpose.9.Whatistheauthor'smainargumentinthepassage?A.Coralreefsareonlyimportantfortourism.B.Coralreefsarenotaffectedbyhumanactivities.C.Coralreefsfaceseriousthreatsandneedprotection.D.Coralreefswillalwaysexistregardlessofhumanactions.Answer:CExplanation:Thepassageconsistentlyemphasizesthethreatscoralreefsface(e.g.,climatechange,pollution)andcallsforconservation.OptionAisincorrectasthetexthighlightsecologicalimportance.OptionBcontradictsthepassage.OptionDisunrealistic.10.Howdoesthepassageuseevidencetosupportitsclaims?A.Bylistingstatisticsaboutcoralpopulations.B.Bydescribingpersonalexperienceswithreefs.C.Byprovidingexamplesofaffectedecosystems.D.Bydiscussingscientifictheoriesaboutcoral.Answer:CExplanation:ThepassageusestheGreatBarrierReefasacasestudytoshowreal-worldconsequencesofcoraldecline.OptionAisnotmentioned.OptionBisnotthemethodused.OptionDisirrelevant.二、填空题（每空2分，共20分）1.Thepassagementionsthatcoralreefsarehometo_______species,makingthemcrucialformarinebiodiversity.Answer:thousandsofExplanation:Thetextstatesthatcoralreefssupportavastnumberofspecies,usingphraseslike"vastarray"and"diversemarinelife."Thecorrectanswerreflectsthisemphasis.2.Oneofthemaincausesofcoralbleachingdiscussedinthepassageis_______.Answer:risingseatemperaturesExplanation:Thepassageexplicitlylinkscoralbleachingtoclimatechange,whichcauseshigherwatertemperatures.Othercauses(likepollution)arementionedbutnotasprimaryastemperature.3.Toprotectcoralreefs,thepassagesuggestsreducing_______emissions,whichcontributetoglobalwarming.Answer:carbonExplanation:Thetextdirectlyconnectscarbonemissionstoclimatechange,whichharmscoral.Otheremissions(e.g.,nitrogen)arenotmentionedasrelevant.4.Thephrase"afragileecosystem"inthesecondparagraphreferstothe_______natureofcoralreefs.Answer:sensitiveExplanation:Thepassagedescribesreefsas"fragile"becausetheyareeasilydisruptedbychangesinwaterqualityortemperature."Sensitive"capturesthismeaning.5.Accordingtothepassage,coralreefsprovidefoodandshelterfor_______andothermarineorganisms.Answer:fishExplanation:Thetextmentionsfishasakeyexampleofmarinelifethatdependsoncoralreefs.Otherorganisms(e.g.,seaturtles)arealsoimpliedbutnotlistedexplicitly.6.Thepassagementionsthatpollutionfrom_______canharmcoralreefs.Answer:coastaldevelopmentExplanation:Thetextimpliesthathumanactivitieslikecoastalconstructionleadtopollution(e.g.,chemicals,waste)thatdamagesreefs.Othersources(e.g.,oilspills)arenotmentioned.7.Tohelppreservecoralreefs,thepassageencouragespeopleto_______single-useplastics.Answer:reduceExplanation:Thepassagesuggestslifestylechanges(likereducingplasticuse)tominimizepollution."Reduce"isthemostaccurateverb.8.TheGreatBarrierReefisdescribedasa_______exampleofcoralecosystemsworldwide.Answer:representativeExplanation:Thepassageusesthereeftoshowtypicalthreatsfacedbycoralglobally,makingita"representative"case.9.Thepassagestatesthatcoralreefsareimportantfor_______becausetheysupportahighnumberofspecies.Answer:biodiversityExplanation:Thetextexplicitlylinkscoralreefstobiodiversity,usingtermslike"vastarray"and"ecologicalimportance."10.Theauthorconcludesbyemphasizingtheneedfor_______toensurethesurvivalofcoralreefs.Answer:conservationeffortsExplanation:Thepassageendswithacalltoaction,suggestingthatprotectingreefsrequiresactivehumanintervention."Conservationefforts"fitsthiscontext.三、判断题（每题2分，共20分）1.Thepassagestatesthatcoralreefsareonlyfoundinwarm,shallowwaters.Answer:FalseExplanation:Thepassagedoesnotlimitcoralreefstowarm,shallowwatersbutmentionstheythriveinspecificconditions.Thestatementistoorestrictive.2.Accordingtothepassage,coralbleachingisanaturalprocessthathelpsreefsrecover.Answer:FalseExplanation:Thepassagedescribesbleachingasaharmfulresponsetostress(e.g.,hightemperatures),notarecoverymechanism.Thestatementmisrepresentsthetext.3.TheGreatBarrierReefismentionedasanexampleofareefthatisnotfacinganythreats.Answer:FalseExplanation:ThepassageusestheGreatBarrierReeftohighlightthreatscoralreefsface,includingclimatechange.Thestatementcontradictsthetext.4.Thepassagesuggeststhatplasticpollutionisthebiggestthreattocoralreefs.Answer:FalseExplanation:Whilepollutionismentioned,thepassageemphasizesclimatechangeasaprimarythreat.Thestatementoverstatestheroleofplastic.5.Theauthorbelievesthatcoralreefswillrecoverontheirownwithouthumanhelp.Answer:FalseExplanation:Thepassagecallsforhumanactiontoprotectreefs,implyingtheycannotrecoveralone.Thestatementcontradictstheauthor'sstance.6.Thepassagefocusesonlyontheeconomicbenefitsofcoralreefsfortourism.Answer:FalseExplanation:Thetexthighlightsecologicalandbiodiversityimportance,notjusttourism.Thestatementistoonarrow.7.Thephrase"adelicatebalance"referstothedifficultyofstudyingcoralreefs.Answer:FalseExplanation:Thephrasedescribesthesensitiverelationshipbetweencoralandmarinelife,notthedifficultyofresearch.Thestatementmisinterpretsthecontext.8.Thepassagementionsthatcoralreefsarenotaffectedbyhumanactivities.Answer:FalseExplanation:Thetextexplicitlylinksthreats(e.g.,pollution,climatechange)tohumanactions.Thestatementcontradictsthepassage.9.Theauthor'smaingoalistopersuadereaderstovisitcoralreefsfortourism.Answer:FalseExplanation:Thepassagefocusesonconservation,nottourismpromotion.Thestatementmisrepresentstheauthor'sintent.10.Thepassageprovidesstatisticsaboutthenumberofcoralspeciesworldwide.Answer:FalseExplanation:Thetextmentions"thousandsofspecies"butdoesnotgiveexactnumbers.Thestatementistoospecificandunsupported.四、简答题（每题2分，共16分）1.Whatarethreemainthreatstocoralreefsmentionedinthepassage?Answer:-Climatechange(risingseatemperatures)-Pollution(e.g.,fromcoastaldevelopmentandplasticwaste)-Overfishing(whichdisruptstheecosystem)Explanation:Thepassageexplicitlydiscussesthesethreats,linkingthemtocoraldecline.Eachthreatissupportedbycontextualclues.2.Whyarecoralreefsconsideredimportantforbiodiversity?Answer:Coralreefssupportavastnumberofmarinespecies,providingfood,shelter,andbreedinggrounds.Theircomplexitycreatesdiversehabitats,makingthemkeytooceanbiodiversity.Explanation:Thetextemphasizescoralreefsas"vastarrays"ofspecies,highlightingtheirecologicalimportance.Theanswerreflectsthisbyexplainingtheirroleinsupportinglife.3.HowdoesthepassageusetheGreatBarrierReefasanexample?Answer:TheGreatBarrierReefisusedtoillustratereal-worldthreatscoralreefsface,suchasclimatechangeandpollution.Itservesasarelatablecasestudytoshowtheglobalimpactofcoraldecline.Explanation:Thepassageframesthereefasa"representative"example,demonstratinghowhumanactivitiesharmcoralecosystems.Theanswercapturesthispurpose.4.Whatdoesthephrase"adelicatebalance"meaninthecontextofcoralreefs?Answer:Itreferstothesensitiverelationshipbetweencoralandmarinelife.Smallchangesinwaterconditions(e.g.,temperature,pollution)candisrupttheecosystem,harmingbothcoralanddependentspecies.Explanation:Thetextuses"delicatebalance"todescribehowcoralreefsrelyonstableconditions.Theanswerexplainsthissensitivity.5.Whatistheauthor'smainargumentinthepassage?Answer:Theauthorarguesthatcoralreefsfaceseriousthreats(e.g.,climatechange,pollution)andneedurgentconservationeffortstosurvive.Explanation:Thepassagerepeatedlyemphasizesthreatsandcallsforaction,makingthisthecentralargument.Theanswerreflectstheauthor'stoneandfocus.6.Howdoesthepassageuseevidencetosupportitsclaims?Answer:ThepassageusestheGreatBarrierReefasareal-worldexampletoshowhowcoraldeclineoccurs.Italsomentionsspecificthreats(e.g.,temperaturerise)tobackitsarguments.Explanation:Thetextcombinesacasestudywithdirectreferencestoproblems,usingevidencetostrengthenitsclaims.Theanswersummarizesthismethod.7.Whatdoesthepassagesuggestpeoplecandotohelpprotectcoralreefs?Answer:Peoplecanreducecarbonemissions,minimizeplasticuse,andsupportconservationefforts(e.g.,byavoidingdestructivetourism).Explanation:Thepassageofferspracticalsolutions,suchaslifestylechangesandadvocacy.Theanswerreflectsthesesuggestions.8.Whydoestheauthorconcludebyemphasizingtheneedforconservation?Answer:Theauthorconcludesthiswaybecausecoralreefsarefragileandfaceirreversibledamagewithouthumanintervention.Conservationisnecessarytopreventtheirloss.Explanation:Thepassageendswithawarningabouttheconsequencesofinaction,makingconservationthelogicalcalltoaction.Theanswercapturesthisurgency.五、应用题（每题4分，共24分）1.Imagineyouareamarinebiologist.Writeashortparagraphexplaininghowclimatechangeaffectscoralreefs.Answer:Climatechangeraisesoceantemperatures,causingcoralbleachingasreefsexpelalgae.Thisstressweakensthem,makingthemmorevulnerabletodiseaseanddeath.Additionally,risingsealevelscanfloodshallowreefs,disruptingtheirdelicateecosystems.Withoutmitigation,thesechangesthreatenglobalcoralsurvival.Explanation:Theanswerexplainsthedirectlinkbetweenclimatechangeandcoraldecline,usingscientificterms(e.g.,bleaching,temperaturerise).Itreflectsthepassage'sfocusonenvironmentalthreats.2.Supposeyouareateacher.Createalessonplanactivitytohelpstudentsunderstandcoralreefbiodiversity.Answer:Activity:Studentsresearchaspecificcoralreef(e.g.,theGreatBarrierReef)andcreateachartlistingthespeciesthatlivethere(e.g.,fish,turtles,sharks).Theythendiscusshowthesespeciesdependonthereefandwhyprotectingitmattersforbiodiversity.Explanation:Theactivityalignswiththepassage'semphasisonbiodiversity,encouragingresearchanddiscussion.Ithelpsstudentsvisualizetheinterconnectednessofreefecosystems.3.Ifyouareatourist,whatresponsibleactionscanyoutaketoprotectcoralreefswhenvisitingthem?Answer:-Avoidtouchingorstandingoncoral.-Usereef-safesunscreentopreventchemicalpollution.-Supportsustainabletourismpractices(e.g.,choosingeco-friendlyoperators).-Donotcollectorharmmarinelife.Explanation:Theanswerreflectsthepassage'scallforresponsiblebehavior,offeringpracticaltipstominimizehumanimpact.4.Writeashortdebateoutlinearguingforstricterlawstoprotectcoralreefs.Answer:-Motion:Stricterlawsareneededtoprotectcoralreefs.-Arguments:-Lawscanreducepollution(e.g.,plasticbans,coastalregulations).-Theyenforceconservationefforts(e.g.,marineprotectedareas).-Globalcooperationisnecessarytoaddressclimatechange.-Counterarguments:-Somearguelawsrestricteconomicactivities(e.g.,fishing,tourism).-Enforcementcanbechallengingininternationalwaters.Explanation:Theoutlinemirrorsthepassage'sfocusonpolicysolutions,balancingpro-andcon-perspectives.5.Designacommunityprojecttoraiseawarenessaboutcoralreefconservation.Answer:Project:"CoralGuardians"-Studentscreatepostersandsocialmediacampaignsaboutthreats(e.g.,climatechange,pollution).-Organizeabeachclean-uptoremoveplasticwaste.-Invitelocalexpertstotalkaboutcoralbiologyandconservation.Explanation:Theprojectexpandsonthepassage'scallforaction,engagingthecommunitythrougheducationanddirectinvolvement.6.Ifyouareapolicymaker,whatpolicieswou