2025年英語四六級考試寫作段落發(fā)展專項訓(xùn)練試卷考試時間：______分鐘總分：______分姓名：______Part1:UnderstandingParagraphStructureReadthefollowingparagraphandanswerthequestionsbasedonyourunderstandingofparagraphdevelopment.Therapidadvancementofartificialintelligence(AI)isreshapingnumerousindustriesanddailylife.Inthefieldofhealthcare,AIalgorithmsarebeingdevelopedtoassistindiagnosingdiseaseswithgreateraccuracythantraditionalmethods.Forinstance,AI-poweredimagingsystemscandetectsubtlepatternsinmedicalscansthatmayindicateearlystagesofcancer.Furthermore,AIisstreamliningadministrativetasks,allowinghealthcareprofessionalstofocusmoreonpatientcare.However,theintegrationofAIintohealthcarealsoraisesethicalconcernsregardingdataprivacyandthepotentialdisplacementofhumanworkers.AsAIcontinuestoevolve,itiscrucialforsocietytoaddressthesechallengestoensureitsbenefitsaremaximizedwhileminimizingpotentialharms.1.Identifythetopicsentenceoftheparagraph.Explainwhyitisaneffectivetopicsentence.2.Whatisthemainideaofthesecondparagraph(theparagraphaboutAIinhealthcare)?Provideevidencefromthetexttosupportyouranswer.3.Theauthorusesthephrase"Forinstance"inthesecondparagraph.Whatisthepurposeofthisphraseinthecontextoftheparagraph?4.Whatisthemainpurposeofthethirdparagraph?Doesitsupportorcontradictthemain觀點(diǎn)ofthesecondparagraph?Explainyourreasoning.5.TheparagraphmentionsboththebenefitsanddrawbacksofAIinhealthcare.Whatrhetoricaleffectdoesthisbalancecreateforthereader?Part2:WritingTopicSentencesForeachofthefollowingtopics,writeaclearandconcisetopicsentence.Then,brieflyexplainwhyyourtopicsentenceiseffective.6.Theimpactofsocialmediaoncommunication.7.Theimportanceofenvironmentalconservation.8.Theroleoftechnologyinmoderneducation.9.Thebenefitsandchallengesofremotework.10.Theinfluenceofculturalexchangeonglobalunderstanding.Part3:ExpandingParagraphs11.Belowisatopicsentenceforaparagraph.Writethreesupportingsentencesthatelaborateonthetopicsentence.Makesureyoursentencesarerelatedtoeachotherandprovidedetailsorexamples."Regularexerciseisessentialformaintaininggoodphysicalhealth."12.Belowisaparagraphwithamissingsupportingsentence.Readtheparagraphandwriteasuitablesupportingsentencetofillintheblankspace.Theriseofe-commercehassignificantlychangedthewaypeopleshop.Onlineretailersofferavastselectionofproducts,oftenatlowerpricesthantraditionalstores._______.Additionally,e-commerceprovidestheconvenienceofshoppingfromhome,savingcustomerstimeandeffort.13.Readthefollowingtwosentences.Writeatransitionsentencethatconnectsthemlogically.Manypeopleenjoygardeningasahobby.Gardeningcanalsobeatherapeuticandrewardingactivity.Part4:ParagraphRevision14.Readthefollowingparagraphandidentifyonemajorweaknessinthedevelopmentoftheparagraph.Explaintheweaknessandsuggestawaytoimprovetheparagraph.Globalwarmingisaseriousenvironmentalissue.Itiscausedbyhumanactivitiessuchasburningfossilfuelsanddeforestation.Somepeoplebelievethatglobalwarmingisnotasignificantproblem.However,scientistshavedocumentedtherisingaveragetemperatureoftheEarth'satmosphere.Weneedtotakeactiontoreduceourcarbonfootprintandprotecttheplanet.Part5:WritingaParagraph15.Chooseoneofthefollowingpromptsandwriteawell-structuredparagraphofatleastfivesentences.Makesureyourparagraphhasacleartopicsentence,supportingsentences,andaconcludingsentence.PromptA:Describeapersonwhohashadasignificantimpactonyourlife.PromptB:Discusstheadvantagesanddisadvantagesoflivinginalargecity.試卷答案Part1:UnderstandingParagraphStructure1.Therapidadvancementofartificialintelligence(AI)isreshapingnumerousindustriesanddailylife.解析：Thissentenceclearlystatesthemainsubjectoftheparagraph(AI)anditsgeneralimpact(reshapingindustriesanddailylife),settingthefocusforthefollowingsentences.2.ThemainideaisthatAIisbeingusedtoimprovediagnosticsandstreamlineadministrativetasksinhealthcare,whilealsoraisingethicalconcerns.解析：ThesecondparagraphdiscussesspecificapplicationsofAIinhealthcare(diagnosis,administrativetasks)andthenintroducescontrastingethicalissues.ThesepointscollectivelysupportthebroaderideaofAI'simpactinthisfieldmentionedinthetopicsentence.3.Thephrase"Forinstance"isusedtointroduceaspecificexample(theuseofAI-poweredimagingsystems)thatillustratesthepointmadeintheprevioussentenceaboutAIassistingindiagnosis.解析：ItsignalstothereaderthatthefollowingsentencewillprovideconcreteevidenceoraspecificcasestudyrelatedtothegeneralstatementaboutAI'sdiagnosticcapabilities.4.Themainpurposeistopresentcounterargumentsoralternativeperspectivestothepotentialbenefitsmentionedearlier,addingdepthandbalancetothediscussion.ItdoesnotcontradictbutrathercomplementsthesecondparagraphbyacknowledgingthecomplexitiesandchallengesassociatedwithAIintegration.解析：Thethirdparagraphshiftsfocustothenegativeaspects(dataprivacy,jobdisplacement)followingthepositiveexamplesinthesecondparagraph.Itsfunctionistoprovideamorebalancedview,whichiscrucialforanuanceddiscussionofAIinhealthcare,ratherthandirectlyopposingthebenefits.5.Thebalancecreatesamoreobjective,credible,andcomprehensiveviewofAI'simpact.Itallowsthereadertounderstandboththepositivepotentialandthenecessarycautionarymeasures.解析：Bypresentingbothbenefitsanddrawbacks,theauthoravoidspresentingaone-sidedoroverlyoptimisticperspective.Thisbalancemakestheargumentmorepersuasiveandrealistic,forcingthereadertoconsiderthefullscopeoftheissue.Part2:WritingTopicSentences6.TopicSentence:Socialmediaplatformshavefundamentallyalteredthewayindividualscommunicateandinteractwithoneanother.解析：Thissentenceiseffectivebecauseitclearlystatesthemainsubject(socialmedia)anditsprimaryimpact(alteringcommunicationandinteraction),providingafocuseddirectionfortheparagraph.7.TopicSentence:Protectingtheenvironmentiscrucialforensuringthelong-termsustainabilityofourplanetanditsecosystems.解析：Thissentenceiseffectiveasitclearlystatesthetopic(environmentalconservation)andassertsitsimportance(crucialforsustainability),indicatingapersuasiveorargumentativetonefortheparagraph.8.TopicSentence:Moderntechnologyhassignificantlytransformededucationalmethods,offeringbothopportunitiesandchallengesforlearnersandeducators.解析：Thissentenceiseffectivebecauseitidentifiesthecoresubject(technologyineducation)andhighlightsthedualnatureofitsimpact(opportunitiesandchallenges),suggestingabalanceddiscussion.9.TopicSentence:Whileremoteworkoffersflexibilityandautonomy,italsopresentsuniquechallengesrelatedtowork-lifebalanceandteamcollaboration.解析：Thissentenceiseffectiveduetoitsclearstructureusing"while"topresentboththeadvantages(flexibility,autonomy)anddisadvantages(work-lifebalance,collaboration)ofthetopic(remotework),indicatingacomparativeorbalancedanalysis.10.TopicSentence:Culturalexchangeplaysavitalroleinfosteringglobalunderstandingandpromotingtoleranceamongdiversepopulations.解析：Thissentenceiseffectiveasitclearlystatesthesubject(culturalexchange)anditssignificantpositiveimpact(fosteringglobalunderstanding,promotingtolerance),settinganinformativeorpersuasivetone.Part3:ExpandingParagraphs11.SupportingSentence1:Engaginginregularphysicalactivitystrengthensmusclesandimprovescardiovascularhealth.解析：Thissentenceprovidesaspecificbenefitofexerciserelatedtophysicalcomponents,elaboratingonthetopicsentence.SupportingSentence2:Exercisealsohelpstomaintainahealthyweightbyburningcaloriesandincreasingmetabolism.解析：Thissentenceoffersanotherspecificphysicalbenefit(weightmanagement)linkedtothegeneralthemeofphysicalhealthmentionedinthetopicsentence.SupportingSentence3:Furthermore,regularexercisecanboostmentalwell-being,reducingstressandimprovingmoodthroughthereleaseofendorphins.解析：Thissentencebroadensthescopeslightlybyaddingamentalhealthbenefit,stillconnectedtotheoverallthemeof"goodphysicalhealth"whichincludesmentalaspects.12.TransitionSentence:Forexample,onlineshoppingallowsconsumerstocomparepricesandproductsfromvariousretailerssimultaneously.解析：Thissentenceusesthetransitionphrase"Forexample"tologicallyconnecttheideaofproductselectionandpriceadvantagefromtheprevioussentencetoaspecificexampleofhowonlineshoppingfacilitatesthiscomparison.13.TransitionSentence:Consequently,gardeningprovidesafulfillingwaytoengagewithnatureandachievepersonalsatisfaction.解析：Thissentenceusesthetransitionword"consequently"toshowaresultorlogicaloutcome.Itconnectsthestatementaboutpeopleenjoyinggardening(reason)totheideaofitbeingtherapeuticandrewarding(result).Part4:ParagraphRevisionWeakness:Theparagraphlacksaclearcentraltopicsentenceandinsteadpresentsaseriesofrelatedpointsdisconnectedby"However."Thesentencesdonotallclearlysupportasinglemainidea.解析：Thefirstsentenceintroducesthetopicvaguely.Thesecondandthirdsentencesintroducedifferentconcepts(causesanddenial).Thefourthsentenceshiftstoscientificevidence.Thereisnosentencethatexplicitlystatestheparagraph'smainpoint,andtheword"However"createsanawkward,somewhatcontradictoryflowratherthanacoherentargument.ImprovementSuggestion:Re-writetheparagraphtobeginwithacleartopicsentencestatingthesignificanceofglobalwarming.Then,developtheparagraphbyfirstpresentingthecauses(fossilfuels,deforestation)andsupportingthiswithevidence(risingtemperatures),followedbyadiscussionoftheconsequencesortheneedforaction.解析：Astrongtopicsentencelike"Globalwarmingposesasignificantthreattotheplanet,primarilycausedbyhumanactivitiessuchasburningfossilfuelsanddeforestation,whichscientistshavelinkedtorisingatmospherictemperaturesandnecessitateurgentaction."wouldprovidefocus.Thisrevisedstructurewouldgroupthecause,evidence,andconsequence/needforactionintoasingle,unifiedargument,removingthedisjointed"however"transitionsandstrengtheningtheoverallcoherence.Part5:WritingaParagraph(Ninedistinctparagraphswillbeprovidedasexamples.Theusermustchooseonepromptandwritetheirownparagraph.)ExampleParagraphforPromptA:Mygrandfather,amanoffewwordsbutgreatdeeds,hashadanindelibleimpactonmylife.Hetaughtmethevalueofhardworkbydemonstratinghisowndedicationtohissmallgardeneverymorningbeforehisshiftat