2026年托福听力生物讲座试题：分子生物学在疾病治疗中的应用

2026年托福听力生物讲座试题：分子生物学在疾病治疗中的应用考试时间：______分钟总分：______分姓名：______Question1:Theprofessorisdiscussinggenetherapy.Hementionsthatacommonapproachinvolvesusingamodifiedvirustodelivertherapeuticgenestothetargetcells.Whatisthemainadvantageofusingvirusesforthispurpose,accordingtotheprofessor?Question2:TheprofessordescribesastudyonRNAinterference(RNAi)intreatingaspecificgeneticdisorder.Accordingtothelecture,whatwastheinitialproblemwiththeRNAiapproachinthisstudy?Question3:Thelecturementionsseveralethicalconsiderationsregardinggenetherapy.Accordingtotheprofessor,whatisoneconcernspecificallyrelatedtousingvirusesasvectorsingenetherapy?Question4:Theprofessordiscussesthedevelopmentoftargeteddrugtherapies.Whatcharacteristicofcancercellsmakesthemparticularlysusceptibletotargetedtherapies,asexplainedbytheprofessor?Question5:Thelecturecomparestraditionalchemotherapywithtargetedtherapy.Accordingtotheprofessor,whatisonemajordifferencebetweenthesetwoapproachesintermsoftheirimpactonthebody?Question6:Theprofessortalksabouttheroleofbiomarkersindiseasetreatment.Whatisabiomarker,andhowdoesithelpinpersonalizingtreatmentplans,accordingtothelecture?Question7:Thelecturementionsachallengeinapplyingmolecularbiologytechniquestodiseaseprevention.Accordingtotheprofessor,whatisonereasonwhyitisdifficulttoimplementgeneticscreeningonalargescalefordiseaseprevention?Question8:Theprofessordiscussesaspecifictechniqueusedinmolecularbiologytodiagnosegeneticdiseases.ThistechniqueinvolvesamplifyingaspecificDNAsequence.Whatisthistechniquecalled?Question9:Thelectureprovidesanexampleofhowmolecularbiologyknowledgehasledtothedevelopmentofanewdrug.Whatwastheinitialdiscoverythatledtothedevelopmentofthisdrug,asdescribedbytheprofessor?Question10:Theprofessorconcludesthelecturebydiscussingthefutureofmolecularbiologyinmedicine.Whatisonepotentialapplicationofmolecularbiologythattheprofessorsuggestscouldhaveasignificantimpactonhealthcareinthefuture?试卷答案Question1:Theprofessorstatesthatusingvirusesasvectorsallowsforprecisedeliveryoftherapeuticgenestothespecificcellsthatneedthem,increasingtheefficiencyofthegenetherapy.解析思路：本题考查细节信息。教授提到使用病毒作为载体可以将治疗性基因精确地递送到需要它们的特定细胞中，从而提高了基因治疗的效率。这是使用病毒作为载体的主要优点。Question2:Accordingtothelecture,theinitialproblemwiththeRNAiapproachwasthattheRNAimoleculeswerenotstableenoughinthebodyandwerebrokendowntooquicklytobeeffective.解析思路：本题考查细节信息。讲座中提到，RNA干扰方法的初始问题在于RNA干扰分子在体内的稳定性不够，分解得太快，无法有效发挥作用。Question3:Theprofessormentionsthatoneethicalconcernisthepotentialfortheviralvectorsusedingenetherapytocauseunintendedmutationsorsideeffectsinthepatient'sgenome.解析思路：本题考查细节信息。教授提到的一个伦理问题是，用于基因治疗的病毒载体有可能在患者的基因组中引起意外的突变或副作用。Question4:Theprofessorexplainsthatcancercellsoftenhavespecificgeneticmutationsoroverexpresscertainproteinsthatarenotpresentinnormalcells,makingthesemutationsorproteinsidealtargetsfordrugsdesignedtodisrupttheirfunction.解析思路：本题考查细节信息。教授解释说，癌细胞经常具有特定的基因突变或过表达某些在正常细胞中不存在的蛋白质，这使得这些突变或蛋白质成为设计用来破坏其功能的药物的理想靶点。Question5:Accordingtotheprofessor,onemajordifferencebetweentraditionalchemotherapyandtargetedtherapyisthattraditionalchemotherapyaffectsbothcancerousandhealthycells,whiletargetedtherapyspecificallytargetscancerouscellswithfewersideeffectsonhealthycells.解析思路：本题考查细节信息。根据教授的说法，传统化疗与靶向治疗之间一个主要的不同之处在于，传统化疗会影响癌症细胞和健康细胞，而靶向治疗专门针对癌症细胞，对健康细胞的副作用更少。Question6:Thelecturedefinesabiomarkerasabiologicalmoleculefoundinblood,urine,ortissuethatcanbemeasuredandusedtoindicatenormalorabnormalprocesses,suchasthepresenceofadiseaseortheresponsetoatreatment.Theprofessorexplainsthatbiomarkershelpinpersonalizingtreatmentplansbyidentifyingspecificcharacteristicsofapatient'sdisease,allowingfortailoredtherapiesthataremoreeffectiveforthatindividual.解析思路：本题考查细节信息。讲座中将生物标志物定义为在血液、尿液或组织中发现的生物分子，可以测量并用来说明正常或异常过程，例如疾病的存在或对治疗的反应。教授解释说，生物标志物通过识别患者疾病的具体特征来帮助个性化治疗计划，从而允许为该个体量身定制更有效的疗法。Question7:Accordingtotheprofessor,onereasonitisdifficulttoimplementgeneticscreeningonalargescalefordiseasepreventionisthecostofthescreeningproceduresandthecomplexityofinterpretingtheresults,especiallywhendealingwithmultiplegenesandpotentialinteractions.解析思路：本题考查细节信息。根据教授的说法，实施大规模遗传筛查以进行疾病预防的一个原因是筛查程序的成本以及解释结果的复杂性，尤其是在处理多个基因和潜在相互作用时。Question8:ThetechniquedescribedbytheprofessorthatinvolvesamplifyingaspecificDNAsequenceiscalledPolymeraseChainReaction,orPCR.解析思路：本题考查细节信息。教授描述的涉及扩增特定DNA序列的技术称为聚合酶链式反应，或PCR。Question9:Thelecturedescribeshowtheinitialdiscoveryofaspecificenzyme'sroleincancercellgrowthledtothedevelopmentofanewdrug.Thisenzymewasfoundtobeoverexpressedincancercellsandwasidentifiedasapotentialtargetfordrugdevelopment.解析思路：本题考查细节信息。讲座描述了最初的发现，即一种特定酶在癌细胞生长中的作用导致了新药的开发。发现这种酶在癌细胞中过表达，并被确定为药物开发的潜在靶点。Question10:Theprofessorsuggeststhatonepotentialapplicationof