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PARTVREADINGCOMPREHENSION[25MIN]Inthissectiontherearefourpassagesfollowedbyquestionsorunfinishedstatements,eachwithfoursuggestedanswersmarkedA,B,CandD.Choosetheonethatyouthinkisthebestanswer.TEXTARacket,dinclamor,noise,whateveryouwanttocallit,unwantedsoundisAmerica'smostwidespreadnuisance.Butnoiseismorethanjustanuisance.Itconstitutesarealandpresentdangertopeople'shealth.Dayandnight,athome,atwork,andatplay,noisecanproduceseriousphysicalandpsychologicalstress.Nooneisimmunetothisstress.Thoughweseemtoadjusttonoisebyignoringit,theear,infact,neverclosesandthebodystillresponds—sometimeswithextremetension,astoastrangesoundinthenight.Theannoyancewefeelwhenfacedwithnoiseisthemostcommonoutwardsymptomofthestressbuildingupinsideus.Indeed,becauseirritabilityissoapparent,legislatorshavemadepublicannoyancethebasisofmanynoiseabatementprograms.Themoresubtleandmoreserioushealthhazardsassociatedwithstresscausedbynoisetraditionallyhavebeengivenmuchlessattention.Nevertheless,whenweareannoyedormadeirritablebynoise,weshouldconsiderthesesymptomsfairwarningthatotherthingmaybehappeningtous,someofwhichmaybedamagingtoourhealth.Ofmanyhealthhazardstonoise,hearinglossisthemostclearlyobservableandmeasurablebyhealthprofessionals.Theotherhazardsarehardertopindown.Formanyofus,theremaybeariskthatexposuretothestressofnoiseincreasessusceptibilitytodiseaseandinfection.Themoresusceptibleamongusmayexperiencenoiseasacomplicatingfactorinheartproblemsandotherdiseases.Noisethatcausesannoyanceandirritabilityinhealthpersonsmayhaveseriousconsequencesforthesealreadyillinmindorbody.Noiseaffectsusthroughoutourlives.Forexample,thereareindicationsofeffectsontheunbornchildwhenmothersareexposedtoindustrialandenvironmentalnoise.Duringinfancyandchildhood,youngstersexposedtohighnoiselevelsmayhavetroublefallingasleepandobtainingnecessaryamountsofrest.Why,then,istherenotgreateralarmaboutthesedangers?Perhapsitisbecausethelinkbetweennoiseandmanydisabilitiesordiseaseshasnotyetbeenconclusivelydemonstrated.Perhapsitisbecausewetendtodismissannoyanceasapricetopayforlivinginthemodernworld.Itmayalsobebecausewestillthinkofhearinglossasonlyanoccupationalhazard.1.InParagraph1,thephraseimmunetoareusedtomean___.A.unaffectedbyB.hurtbyC.unlikelytobeseenbyD.unknownby2.Theauthor'sattitudetowardnoisewouldbestbedescribedas___.A.unrealisticB.traditionalC.concernedD.hysterical3.Whichofthefollowingbeststatesthemainideaofthepassage?A.Noiseisamajorproblem;mostpeoplerecognizeitsimportance.B.Althoughnoisecanbeannoying,itisnotamajorproblem.C.Noiseisamajorproblemandhasnotyetbeenrecognizedassuch.D.Noiseisamajorproblemaboutwhichnothingcanbedone.4.Theauthorcondemnsnoiseessentiallybecauseit___.A.isagainstthelawB.canmakesomepeopleirritableC.isanuisanceD.inagangertopeople'shealth5.Theauthorwouldprobablyconsiderresearchabouttheeffectsnoisehasonpeopletobe___.A.unimportantB.impossible.C.awasteofmoneyD.essentialTEXTBWhatweknowofprenataldevelopmentmakesallthisattemptmadebyamothertomoldthecharacterofherunbornchildbystudyingpoetry,art,ormathematicsduringpregnancyseemutterlyimpossible.Howcouldsuchextremelycomplexinfluencespassfromthemothertothechild?Thereisnoconnectionbetweentheirnervoussystems.Eventhebloodvesselsofmotherandchilddonotjoindirectly.Anemotionalshocktothemotherwillaffectherchild,becauseitchangestheactivityofherglandsandsothechemistryherblood.Anychemicalchangeinthemother'sbloodwillaffectthechildforbetterorworse.Butwecannotseehowalookingformathematicsorpoeticgeniuscanbedissolvedinbloodandproduceasimilarlikingorgeniusinthechild.Inourdiscussionofinstinctswesawthattherewasreasontobelievethatwhateverweinheritmustbeofsomeverysimplesortratherthananycomplicatedorverydefinitekindofbehavior.Itiscertainthatnooneinheritsaknowledgeofmathematics.Itmaybe,however,thatchildreninheritmoreorlessofarathergeneralabilitythatwemaycallintelligence.Ifveryintelligentchildrenbecomedeeplyinterestedinmathematics,theywillprobablymakeasuccessofthatstudy.Asformusicalability,itmaybethatwhatisinheritedisanespeciallysensitiveear,apeculiarstructureofthehandsorthevocalorgansconnectionsbetweennervesandmusclesthatmakeitcomparativelyeasytolearnthemovementsamusicianmustexecute,andparticularlyvigorousemotions.Ifthesefactorsareallorganizedaroundmusic,thechildmaybecomeamusician.Thesamefactors,inothercircumstancemightbeorganizedaboutsomeothercenterofinterest.Therichemotionalequipmentmightfindexpressioninpoetry.Thecapablefingersmightdevelopskillinsurgery.Itisnottheknowledgeofmusicthatisinherited,thennoreventheloveofit,butacertainbodilystructurethatmakesitcomparativelyeasytoacquiremusicalknowledgeandskill.Whetherthatabilityshallbedirectedtowardmusicorsomeotherundertakingmaybedecidedentirelybyforcesintheenvironmentinwhichachildgrowsup.6.Whichofthefollowingstatementsisnottrue?A.Somemotherstrytoinfluencetheirunbornchildrenbystudyingartandothersubjectsduringtheirpregnancy.B.Itisutterlyimpossibleforustolearnanythingaboutprenataldevelopment.C.Thebloodvesselsofmotherandchilddonotjoindirectly.D.Therearenoconnectionbetweenmother'snervoussystemsandherun