英语专四阅读训练Word格式文档下载.docx
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英语专四阅读训练Word格式文档下载.docx
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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.
1.Whichofthefollowingstatementsisnottrue?
A.Somemotherstrytoinfluencetheirunbornchildrenbystudyingartandothersubjectsduringtheirpregnancy.
B.Itisutterlyimpossibleforustolearnanythingaboutprenataldevelopment.
C.Thebloodvesselsofmotherandchilddonotjoindirectly.
D.Therearenoconnectionbetweenmother’snervoussystemsandherunbornchild’s.
2.Amotherwillaffectherunbornbabyontheconditionthat____.
A.sheisemotionallyshocked
B.shehasagoodknowledgeofinheritance
C.shetakespartinallkindofactivities
D.shestickstostudying
3.Accordingtothepassage,achildmayinherit____.
A.everythingfromhismother
B.aknowledgeofmathematics
C.arathergeneralabilitythatwecallintelligence
D.hermother’smusicalability
4.Ifachildinheritssomethingfromhismother,suchasanespeciallysensitiveear,apeculiarstructureofthehandsorofthevocalorgans,hewill____.
A.surelybecomemusician
B.mostlybecomeapoet
C.possiblybecomeateacher
D.becomeamusicianontheconditionthatallthesefactorsareorganizedaroundmusic
5.Whichofthefollowingisthebesttitleforthepassage?
A.RoleofInheritance.B.AnUnbornChild.
C.Functionofinstincts.D.InheritedTalents.
参考答案:
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Therearesomeearthphenomenayoucancounton,butthemagneticfield,somedayisnotofthem.Itfluctuatesinstrength,driftsfromitsaxis,andeveryfew100,000yearsundergo,dramaticpolarityreversal—aperiodwhennorthpolebecomessouthpoleandsouthpolebecomesnorthpole.Buthowisthefieldgenerated,andwhyisitsounstable?
GroundbreakingresearchbytwoFrenchgeophysicistspromisestoshedsomelightonthemystery.Using80metersofdeepseasedimentcore,theyhaveobtainedmeasurementsofmagnetic?
fieldintensitythatspan11polarityreversalsandfourmillionyears.Theanalysisrevealsthatintensityappearstofluctuatewithaclear,well-definedrhythm.Althoughthestrengthofthemagneticfieldvariesirregularlyduringtheshortterm,thereseemstobeaninevitablelongtermdeclineprecedingeachpolarityreversal.Whenthepolesflip—aprocessthattakesseveralhundredthousandyears—themagneticfieldrapidlyregainsitsstrengthandthecycleisrepeated.
Theresultshavecausedastiramonggeophysicists.Themagneticfieldisthoughttooriginatefrommoltenironintheoutercore,3,000kilometersbeneaththeearth'
ssurface.Bystudyingmineralgrainsfoundinmaterialrangingfromrockstoclayarticles,previousresearchershavealreadybeenabletoidentifyreversalsdatingback170millionyears,includingthemostrecent
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