PETS-5模拟试卷1

PETS5模拟试卷（1）SectionⅠListening(15minutes)SectionⅡUseofEnglish(15minutes)ReadthefollowingtextandfilleachofthenumberedspaceswithONEsuitableword．WriteyouranswersonANSWERSHEET1．Youmaysaythatthebusinessofmarkingbooksisgoingtoslowdownyourreading．(31)____probablywill．That’soneofthe(32)____fordoingit．MostofUShavebeentakeninbythenotionthatspeedof(33)isameasureofourintelligence．Thereis(34)____suchthingsasthefight(35)____forintelligentreading．Somethingsshouldbe(36)____quicklyandeffortlessly，andsomeshouldberead(37)____andevenlaboriously．Thesignofintelligence(船)____readingistheabilitytoread(39)____thingsdifferentlyaccordingtotheirworth．Inthe(40)____ofgoodbooks，thepointisnottoseehowmanyofthemcanyougetthrough，(41)____howmanyCanyougetthroughthem--howmanyyouCan(42)____yourown．Afewfriendsare(43)____thanathousandacquaintances．Ifthisbeyourgoal，(44)____itshouldbe，youwillnotbeimpatientifittakesmoretimeandefforttoreadagreatbookthananewspaper(45)____．Youmayhaveanotherobjectionto(46)____books．YouCan’tlendthemtoyourfriends(47)____nobodyelsecallreadthem(48)____beingdistractedbyyournotes．What’smore，youwon’twanttolendthembecausea(49)____copyisakindofintellectualdiary，and(50)____itisalmostlikegivingyourmindaway．IfyourfriendhopestoreadyourShakespeare，orTheFederalistPapers，tellhim，gentlybutfirmly，tobuyacopy．Youwilllendhimyourcaroryourcoat——butyourbooksareasmuchapartofyouasyourheadoryourheart.SectionⅢReadingComprehension(50minutes)PartA：ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA，B，CorD．MarkyouranswersonANSWERSHEET1．Text1GenetherapyandgenebaseddrugsaretwowayswecouldbenefitfromOurgrowingmasteryofgeneticscience．Buttherewillbeothersaswell．Hereisoneoftheremarkabletherapiesonthecuttingedgeofgeneticresearchthatcouldmaketheirwayintomainstreammedicineinthecomingyears．Whileit’Struethatjustabouteverycellinthebodyhastheinstructionstomakeacompletehuman，mostofthoseinstructionsareinactivated，andwithgoodreason：thelastthingyouwantforyourbraincellsistostartchurningoutstomachacidoryournosetoturnintoakidney．Theonlytimecellstrulyhavethepotentialtoturnintoanyandallbodypartsisveryearlyinapregnancy．whenso-calledstemcellshaven’tbeguntospecialize．Yetthisuntappedpotentialcouldbeaterrificboontomedicine．Mostdiseasesinvolvethedeathofhealthycells-braincellsinAlzheimer’s，cardiaccellsinheartdisease，pancreaticcellsindiabetes，tonameafew；ifdoctorscouldisolatestemcells，thendirecttheirgrowth，theymightbeabletofurnishpatientswithhealthyreplacementtissue．Itwasincrediblydifficult，butlastfallscientistsattheUniversityofWisconsinmanagedtoisolatestemcellsandgetthemtogrowintoneural，gut，muscleandbonecells．Theprocessstillcan’tbecontrolled，andmayhaveunforeseenlimitations；butifeffortstounderstandandmasterstemcelldevelopmentprovesuccessful，doctorswillhaveatherapeutictoolofincrediblepower．Thesanleappliestocloning，whichisreallyjusttheothersideofthecoin．Truecloning，asfirstshownwiththesheepDollytwoyearsago，involvestakingadevelopedcellandreactivatingthegenomewithin，resettingitsdevelopmentalinstructionstoapristinestate．Oncethathappens，therejuvenatedcellcandevelopintoafull—fiedgedanimal，geneticallyidenticaltoitsparent．Foragriculture．inwhichpurelyphysicalcharacteristicslikemilkproductioninacoworlowfatinahoghaverealmarketvalue，biologicalcarboncopiescouldbecomeroutinewithinafewyears．ThispastyearscientistshavedoneformiceandcowswhatIanWilmutdidforDolly，andothercreaturesareboundtojointheclonedmenagerieinthecomingyear．Humancloning，ontheotherhand，maybetechnicallyfeasiblebutlegallyandemotionallymoredifficult．Still，onedayitwillhappen．Theabilitytoresetbodycellstoapristine，undevelopedstatecouldgivedoctorsexact：lythesameadvantagestheywouldgetfromstemcells：thepotentialtomakehealthybodytissuesofallsorts，and．thustocuredisease．Thatcouldprovetobeatrue“miraclecure”．51．Thewriterholdsthatthepotentialtomakehealthybodytissueswill_____．[A]aggravatemoralissuesofhumancloning[B]bringgreatbenefitstohumanbeings[C]helpscientistsdecodebodyinstructions[D]involveemployingsurgicalinstruments52．Theword“rejuvenated”(Para．5)mostprobablymeans_____．[A]modified[B]recoliccted[C]classified[D]reactivated53．TheresearchattheUniversityofWisconsinismentionedtoshow_____．[A]theisolationofstemcells[B]theeffectsofgenetherapies[C]theadvantagesofhumancloning[D]thelimitationsoftissuereplacepmnts54．Whichofthefollowingistrueaccordingtothetext?[A]Theprincipleofgenetherapyisapplicabletothatofcloning．[B]Theisolationofstemceilsistoodifficulttobefeasible．[C]Itisreasonableforallbodyinstructionstobeactivated．[D]Clonedanimalswilleventuallytakecontroloftheworld．55．Towardsthegeneticresearch，theauthor’sattitudecanbestbesaidtobethatof_____．[A]frustration[B]indifference[C]amazement[D]oppositionText2Thecaterpillar’sinventor，NorihikoSagaofAkitaPrefecturalUniversityinJapan，willdemonstratehisnewmethodoflocomotionataconferenceonmagneticmaterialsinSeattle．Inadditiontolightsandcameras，asearchcaterpillarcouldbeequippedwithanarrayofsensorstomeasureotherfactors--suchasradioactivityoroxygenlevels—thatcouldtellhumanrescuersifanareaissafetoenter．Them