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Exercise4Itisapopularmisconceptionthatnuclearfusion核聚变powerisfreeofradioactivity放射性;infact,thedeuterium-tritium氘和氚reactionthatnuclearscientistsarecurrentlyexploringwithsuchzealproducesbothalphaparticlesandneutrons.(Theneutronsareusedtoproducetritiumfromalithiumblanketsurroundingthereactor.)D和T都会发出射线，阿尔法粒子和中子，中子来自于锂变成的TAnothercommonmisconceptionisthatnuclearfusionpowerisavirtuallyunlimitedsourceofenergybecauseoftheenormousquantityofdeuteriuminthesea.Actually,itslimitsaresetbytheamountofavailablelithium,whichisaboutasplentifulasuranium铀intheEarth‘scrust.Researchshouldcertainlycontinueoncontrollednuclearfusion,butnoenergyprogramshouldbepremisedonitsexistenceuntilithasprovenpractical.(122words)1.Itcanbeinferredfromthepassagethattheauthorbelieveswhichofthefollowingaboutthecurrentstateofpublicawarenessconcerningnuclearfusionpower?(A)Thepublichasbeendeliberatelymisinformedabouttheadvantagesanddisadvantagesofnuclearfusionpower.(B)Thepublicisunawareoftheprincipaladvantageofnuclearfusionovernuclearfissionasanenergysource.(C)Thepublic‘sawarenessofthescientificfactsconcerningnuclearfusionpowerissomewhatdistortedandincomplete.(D)Thepublicisnotinterestedinincreasingitsawarenessoftheadvantagesanddisadvantagesofnuclearfusionpower.(E)Thepublicisawareofthedisadvantagesofnuclearfusionpowerbutnotofitsadvantages.Forthefollowingquestion,considereachofthechoicesseparatelyandselectallthatapply2.ThepassageprovidesinformationthatwouldanswerwhichofthefollowingquestionsEXCEPT?□AHowmuchincidentalradiationisproducedinthedeuteriumtritiumfusionreaction?【howmuch，没说具体的量，自己为啥没选呢？可能看着看着就忘记是EXCEPT了】□BWhatislikelytobetheprincipalsourceofdeuteriumfornuclearfusionpower?□CWhyarescientistsexploringthedeuterium-tritiumfusionreactionwithsuchzeal?RogerRosenblatt‘sbookBlackFiction,inattemptingtoapplyliteraryratherthansociopoliticalcriteriatoitssubject,successfullyalterstheapproachtakenbymostpreviousstudies.【ratherthan表明是用literary，successfully表明作者支持】AsRosenblattnotes,criticismofBlackwritinghasoftenservedasapretext借口forexpounding阐述onBlackhistory.AddisonGayle‘srecentwork,forexample,judgesthevalueofBlackfictionbyovertly明显地，公开地politicalstandards,ratingeachworkaccordingtothenotionsofBlackidentitywhichitpropounds提出，建议.Althoughfictionassuredlyspringsfrompoliticalcircumstances,itsauthorsreacttothosecircumstancesinwaysotherthanideological,andtalkingaboutnovelsandstoriesprimarilyasinstrumentsofideologycircumventsmuchofthefictionalenterprise.Rosenblatt‘sliteraryanalysisdisclosesaffinitiesandconnectionsamongworksofBlackfictionwhichsolelypoliticalstudieshaveoverlookedorignored.WritingacceptablecriticismofBlackfiction,however,presupposes假定以。。。为条件givingsatisfactoryanswerstoanumberofquestions.Firstofall,isthereasufficientreason,otherthantheracialidentityoftheauthors,togrouptogetherworksbyBlackauthors?Second,howdoesBlackfictionmakeitselfdistinctfromothermodernfictionwithwhichitislargelycontemporaneous同时代的，同时期的?RosenblattshowsthatBlackfictionconstitutesadistinctbodyofwritingthathasanidentifiable,coherentliterarytradition.LookingatnovelswrittenbyBlacksoverthelasteightyyears,hediscoversrecurring循环的concernsanddesignsindependentofchronology.Thesestructuresarethematic主题的,andtheyspring,notsurprisingly,fromthecentralfactthattheBlackcharactersinthesenovelsexistinapredominantlyWhiteculture,whethertheytrytoconformtothatcultureorrebelagainstit.BlackFictiondoesleavesomeaestheticquestionsopen.Rosenblatt‘sthematicanalysispermitsconsiderableobjectivity;heevenexplicitlystatesthatitisnothisintentiontojudgethemeritofthevariousworks—yethisreluctanceseemsmisplaced,especiallysinceanattempttoappraise评价，鉴定mighthaveledtointerestingresults.Forinstance,someofthenovelsappeartobestructurallydiffuse弥漫的.Isthisadefect,oraretheauthorsworkingoutof,ortryingtoforge,adifferentkindofaesthetic?Inaddition,thestyleofsomeBlacknovels,likeJeanToomer‘sCane,vergeson趋近，接近expressionismorsurrealism;doesthistechniqueprovideacounterpointtotheprevalentthemethatportraysthefateagainstwhichBlackheroesarepitted,athemeusuallyconveyedbymorenaturalisticmodesofexpression?Inspiteofsuchomissions疏忽【提示上文描写了这个critism的缺点】,whatRosenblattdoesincludeinhisdiscussionmakesforanastute机敏的andworthwhilestudy.BlackFictionsurveysawidevarietyofnovels,bringingtoourattentionintheprocesssomefascinatingandlittle-knownworkslikeJamesWeldonJohnson‘sAutobiographyofanEx-ColoredMan.Its55argumentistightlyconstructed,anditsforthright,lucidstyleexemplifieslevelheadedandpenetratingcriticism.DAEBCDE3.Theauthorofthepassageobjectsto反对criticismofBlackfictionlikethatbyAddisonGaylebecauseit(A)emphasizespurelyliteraryaspectsofsuchfiction(B)misinterpretstheideologicalcontentofsuchfiction(C)misunderstandsthenotionsofBlackidentitycontainedinsuchfiction(D)substitutespoliticalforliterarycriteriainevaluatingsuchfiction【AddisonGayle‘srecentwork,forexample,judgesthevalueofBlackfictionbyovertly明显地，公开地politicalstandards】(E)ignorestheinterplaybetweenBlackhistoryandBlackidentitydisplayedinsuchfiction4.Theauthorofthepassageisprimarilyconcernedwith(A)evaluatingthesoundnessofaworkof