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1、2019年考研英语阅读模拟试题及答案 研究生考试备考逐渐开始了，为了帮助大家能顺利通过考试，下面为大家带来考研英语阅读模拟试题及答案，供大家参考学习，预祝考生备考成功！ 练习题一 Scientistshaveknownsince1952thatDNAisthebasicstuffofheredity.Theyveknownitschemicalstructuresince1953.TheyknowthathumanDNAactslikeabiologicalputerprogramsome3billionbitslongthatspellsouttheinstructionsformaking
2、proteins，thebasicbuildingblocksoflife. Buteverythingthegeneticengineershaveacplishedduringthepasthalf-centuryisjustapreambletotheworkthatCollinsandAndersonandlegionsofcolleaguesaredoingnow.CollinsleadstheHumanGenomeProject，a15-yearefforttodrawthefirstdetailedmapofeverynookandcrannyandgeneinhumanDNA.
3、Anderson，whopioneeredthefirstsuccessfulhumangene-therapyoperations，isleadingthecampaigntoputinformationaboutDNAtouseasquicklyaspossibleinthetreatmentandpreventionofhumandiseases. Whattheyandotherresearchersareplottingisnothinglessthanabiomedicalrevolution.LikeSiliconValleypiratesreverse-engineeringa
4、puterchiptostealapetitorssecrets，geneticengineersaredecodinglifesmolecularsecretsandtryingtousethatknowledgetoreversethenaturalcourseofdisease.DNAintheirhandshasbeebothablueprintandadrug，apharmacologicalsubstanceofextraordinarypotencythatcantreatnotjustsymptomsorthediseasesthatcausethembutalsotheimp
5、erfectionsinDNAthatmakepeoplesusceptibletoadisease. Andthatsjustthebeginning.Forallthefeveredworkbeingdone，however，scienceisstillfarawayfromtheBraveNewWorldvisionofengineeringaperfecthumanorevenaperfecttomato.Muchmoreresearchisneededbeforegenetherapybeesmonplace，andmanydiseaseswilltakedecadestoconqu
6、er，iftheycanbeconqueredatall. Intheshortrun，themostpracticalwaytousethenewtechnologywillbeingeneticscreening.DoctorswillbeabletodetectallsortsofflawsinDNAlongbeforetheycanbefixed.Insomecasestheknowledgemaylead totreatmentsthatdelaytheonsetofthediseaseorsoftenitseffects.Someonewithageneticpredisposit
7、iontoheartdisease，forexample，couldfollowalow-fatdiet.Andifscientistsdeterminethatavitalproteinismissingbecausethegenethatwassupposedtomakeitisdefective，theymightbeabletogivethepatientanartificialversionoftheprotein.Butinotherinstances，almostnothingcanbedonetostoptheravagesbroughtonbygeneticmutations
8、.(409words) 1.ItcanbeinferredfromthetextthatCollinsandAndersonandlegionsofcolleagues_. AknowthathumanDNAactslikeabiologicalputerprogram Bhavefoundthebasicbuildingblocksoflife Chaveacplishedsomegeneticdiscoveryduringthepasthalf-century DaremakingabreakthroughinDNA 2.CollinsandAndersonarecitedinthetex
9、ttoindicateallthefollowingEXCEPTthat_. Atime-consumingeffortisneededtoacplishthedetailedmapofinhumanDNA Bhumangene-therapyoperationsmaybeappliedtothepatients Cgene-therapynowisalreadygenerallyusedtothetreatmentandpreventionofhumandiseases DinformationaboutDNAmaybeusedinthetreatmentandpreventionofhum
10、andiseases 3.Theword“pirate”(line2，paragraph3)means_. Aonewhorobsatseaorplundersthelandfromthesea Bonewhomakesuseoforreproducestheworkofanotherwithoutauthorization Ctotake(something)bypiracy Dtomakeuseoforreproduce(anotherswork)withoutauthorization 4.Wecandrawaconclusionfromthetextthat_. Aengineerin
11、gaperfecthumanisnotfeasibleforthetimebeing Bitsimpossibleforscientiststoengineeraperfecttomato Cmanydiseaseswillneverbeconqueredbyhumanbeings DdoctorswillbeabletocureallsortsofflawsinDNAinthe longrun 5.Thebesttitleforthetextmaybe_. ADNAandHeredity BTheGeneticRevolution CABiomedicalRevolution DHowtoA
12、pplyGeneticTechnology 词汇注释 stuff物质 preamble开端 nookandcranny排列 potency力量 susceptible易受感染的 predisposition易患病的体质 难句讲解 1.TheyknowthathumanDNAactslikeabiologicalputerprogramsome3billionbitslongthatspellsouttheinstructionsformakingproteins，thebasicbuildingblocksoflife. 简析本句话的主干是“Theyknowthat”。they指的是前面句子中
13、提到的scientists;第一个引导的是宾语从句，some3billionbitslong修饰puterprogram，第二个that也修饰puterprogram;thebasicbuildingblocksoflife是在解释proteins. 2.Anderson，whopioneeredthefirstsuccessfulhumangene-therapyoperations，isleadingthecampaigntoputinformationaboutDNAtouseasquicklyaspossibleinthetreatmentandpreventionofhumandis
14、eases. 简析本句话的主干是“Andersonisleadingthecampaign”。Who引导的非限定性定语从句，修饰Anderson;toputinformation短语修饰campaign，其中的touse作目的状语。 3.DNAintheirhandshasbeebothablueprintandadrug，apharmacologicalsubstanceofextraordinarypotencythatcantreatnotjustsymptomsorthediseasesthatcausethembutalsotheimperfectionsinDNAthatmakepeoplesusceptibletoadisease. 简析本句话的主干是“DNAhasbeebothablueprintandadrug”。intheirhands修饰DNA;apharmacologicalsubstance是在解释前面的drug，其中的第一个that引导的定语从句修饰pharmacologicalsubstance;第二个that引导的定语从句修饰imperfect
