




版權說明:本文檔由用戶提供并上傳,收益歸屬內容提供方,若內容存在侵權,請進行舉報或認領
文檔簡介
2022-2023年河南省新鄉(xiāng)市公共英語五級(筆試)知識點匯總(含答案)學校:________班級:________姓名:________考號:________
一、1.ListeningComprehension(15題)1.聽力原文:Now,letmefirstgiveyouabriefintroductiontotheAmericanpoet,EmilyDickinson.EmilyDickinsonwasAmerica'sbest-knownfemalepoetandoneoftheforemostauthorsinAmericanliterature.BorninAmherst,Massachusetts,Dickinsonwasthemiddlechildofaprominentlawyerandone-termUnitedStatescongressionalrepresentative,EdwardDickinson,andhiswife.EmilyNorcrossDickinson.From1840to1847sheattendedtheAmherstAcademy.andfrom1847to1848shestudiedattheMountHolyokeFemaleSeminary(nowMountHolyokeCollege)inSouthHadley,afewtripstoBostonforeyetreatmentsintheearly1860s。DickinsonremainedinAmherst.livinginthesamehouseonMainStreetfrom1855untilherdeath.Duringherlifetime,shepublishedonlyabout10ofhernearly2,000poems,innewspapers,Civilwarjournais,andapoetryanthology.ThefirstvolumeofPoemsofEmilyDickinsonwaspublishedin1890,afterDickinson'sdeath.
AlthoughfewofDickinson'spoemswereformallypublishedduringherlifetime,sheherself“published”bysendingoutatleastone-thirdofherpoemsinthemorethan1,000lettersshewrotetoatleast100differentcorrespondents.Dickinson'smethodofbindingabout800ofherpoemsinto40manuscript.booksanddistributingseveralhundredoftheminlettersisnowwidelyrecognizedasherparticularform.ofself-publication.Shealsoreadherpoemsaloudtoseveralpeople,includinghercousinsLouiseandFrancesNorcross,overaperiodofthreedecades.
Well.that'sallaboutherlife.Nowshallweconcentrateonherfamouspoem,“SuccessisCountedSweetest”.
InwhichstatewasEmilyDicksonborn?
A.Michigan.B.Ohio.C.Massachusetts.D.Washington.
2.PartA
Directions:Youwillhearatalk.Asyoulisten,answerQuestions1-10bycirclingTRUEorFALSE.YouwillhearthetalkONLYONCE.Younowhave1minutetoreadQuestions1-10.
聽力原文:Hello,everyone.TodayIwillintroduceyouthelearningchainsinBritain.Herethechainsrefertoschoolslinkedtogetheraspartofagroup.Theycanofferstudentsmanypracticaladvantages.
Whenpeopleareaskedtonamealanguageschool,moreoftenthannot.theythinkofoneofthelargeinternationalchainsofschools.Somearevastlanguageteachingorganizationswithschoolsinmanydifferentcountriesandmayteachjustonelanguage.
Oneofthemainstrengthsofthesechainsisthefactthattheirnameisfamiliartopeopleallovertheworld.Thiscanbeabigadvantageintheconfusingworldoflanguagelearning.Moststudentsarebewilderedbythelargechoiceofschoolsandcoursesonoffer.bothathomeandabroad.andsomanyprefertochooseaschoolwhichhasafamiliarnameandanestablishedreputation.Chainschoolsknowthis,andpartoftheirsuccessisduetoeffectivemarketingandadvertising,whichhelpstokeeptheirnamewell-known.
Butchainschoolsshouldnotbedismissedbyseriousstudentsjustbecausetheyuseclevermarketingtechniques.Theyhaveotherimportantstrengthenswhichcanprovideadvantagestostudents.Aschoolisonlyasgoodasitsteachersandfacilities,andmanychainsofferveryhighstandardsinboth.Morechainsrequirethattheirteachershaveinternationallyrecognizedqualificationsandamaximumamountofteachingexperience.Itisimportantforchainstomaintainthesestandardsatallschools.becausethereputationofthewholechaincanbeaffectedifoneschoolperformsbadly.
Studentsalsobenefitfromthestandardizedstructureofchains.Mostchainsusethesametextbooksinalltheirschools.andoftentheyproducetheirowncourseworkmaterials.Theyalsoorganizetheircoursesinthesamewaywhichmeansthatstartingdatesandcourselengthsareusuallythesameatallschools.
Forstudents,oneofthemainadvantagesofthisstandardizedstructureissimplicity.IfyoucannotdecidewhethertostudyintheU.S.orBritain.forexample,mostchainsallowstudentstostarttheirlanguagecourseatoneschoolandcontinueatanother,sotheycanexperiencedifferentregionsordifferentcountries,aspartofthesamestudytrip.
Chainschoolstendtobelargerthansinglecenterschools,whichcanalsohaveadvantagesforstudents.Withlargernumbersofstudents.schooladministratorscanachieveabettermixtureofnationalitiesinclassrooms.Thismeansthatstudentscanavoidbeingwithotherstudentswhospeaktheirlanguage.Thisgivesthemthechancetomeetstudentsfromothercountries,andtopracticetheirEnglishwiththem.
Somechainsofferstudentsaverysimplebookingandenrolmentprocedurewhichisalsouseful.Applicationformsandenrolmentproceduresarethesameforallschools,sostudentsneedonlysupplytheirdetailsonce.Studentsmayfindthattheycanbooktheircourseabroadthrougharepresentativeofachainschoolintheirowntownorcity.Otherchainsofferacentralizedbookingfacility,sostudentsonlyhavetocontactonecentertomakeabookinganywhereintheworld.
Chainschoolsoftenoperateindifferentlocations,whereasasingleschoolislikelytobebasedpermanentlyinonebuilding.Manychainschoolsoperatetemporaryschools,particularlyduringthesummerholidays.InBritain,theyoftenusesecondaryschoolpremiseswhichareemptyduringtheschoolholidays.
StudyingEnglishinanEnglish-speakingcountryisthemosteffectivewaytolearnthelanguage,butformanystudentsthisisonlyonestageoftheirlearningcareer.MoststudentsstartlearningEnglishintheirowncountryandtheywillprobablywanttocontinuelearningoncetheyreturnfrom
A.RightB.Wrong
3.Inwhataspectsdoesthespeakerthinkalloftheseculturalchangesarestrengthened?
4.The"feltimage"letsyourecognizeyourphysicalexistenceintheworld.
A.RightB.Wrong
5.PartC
Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.
Younowhave1minutetoreadQuestions21-30.
聽力原文:W:Dr.Huber,whendidyoufirstbecomeinterestedinphysicsandmusic?
M:Ican'trememberatimewhenIwasn'tinterestedinphysics.WhenIwasachild.Iwasverycuriousabouttheworldaroundme.Forexample.Ialwayswonderedwhylightbehavesthewayitdoes.Ifounditmorefuntoplaywithaprismthantoplaywiththekidsintheneighborhood.Iwasn'tverysocial.butIwasreallyintofiguringouthowthingsworked.IgotmyowntelescopewhenIwaseightyearsold.andIlovedtotakeitoutatnightandgostargazing.Iwouldlookattheplanetsandstarsandwonderwhatwasoutthere.WhenIwasten.myfatherboughtmeabookontheuniverse,andIjustateitup.Infact,Istillhavethatbookrighthereinmyoffice.
Itwasthesamewithmusic.I'vealwayshadanaturalearformusic.perfectpitch.Evenasayoungchild,ifIheardasongontheradio,Icouldgorighttothepianoandplayit.WhenIheardasoundliketheringofatelephone,Icouldidentifyitspitchandplaythenoteonthepiano.However.Ididn'tdevelopaseriousinterestinbecomingapianistuntilIwasincollege.Ialsoseemedtodowellinschoolinthevisualartslikepaintinganddrawing.
W:Whatcommonalitydoyouseebetweenmusicandphysics?
M:Thereisacommonmisconceptionthatartandsciencearecompletelyseparatedfromeachother.Ithinkthedistinctionisartificial.Inreality,artandsciencearenotasmutuallyexclusiveasonemightassume.Solvingacomplicatedmathematicalproblem,forexample,canrequirethesamedegreeofcreativethinkingaspaintingalandscapeorwritingapoem.IfeelanindefinabletinglewhenIplaytheSchumannConcertoordancethepasdedeuxfromRomeoandJuliet.Igetthatthesametinglefromtheoreticalphysics.
Thebeautyofartisreadilyapparenttomostpeople.However,inthecaseoftheoreticalphysics,thebeautyisnotnearlyasaccessibletothegeneralpublic,butitiseverybitasexciting.Natureseemstofollowcertainprinciples,verymuchthesameasartdoes.
It'snotuncommonforphysiciststobecomeaccomplishedmusicians.Musictheoryisaverymathematicaldiscipline.Relationshipsamongvariousnotesinclassicalharmonyarebasedonsimplemathematicalrelationships.
W:Youhavesaidthatphysicsisbeautiful.Whatmakesitbeautifultoyou?
M:Tome,it'sincrediblethewaynatureseemstoworksoperfectly.Ithinkitisbeautiful.Ialwaystellmystudentsonthefirstdayofclass.“IfyoulikereadingSherlockHolmesdetectivestories,you'lllikedoingphysicsproblems.”Physicsisaboutfiguringthingsout—discoveringhowtheywork,justlikeadetective.
Alotofpeoplefearphysicsbecausetheyviewitasabigcomplicatedjumbleoffactsthathavetobememorized.Butthat'snottrue.It'sanunderstandingofhownatureworks,howthevariouspartsinteract.Onecanviewartandliteratureastherelationshipsandinteractionsofideas.Inthesameway,physicsstudiestherelationshipsandinteractionsofconcepts.Inotherwords,tomeartandsciencefundamentallyattempttoachievethesameobjective—understandingoftheworldaroundus!
Thewholeuniverseseemstofollowsomeverybasicprinciplesasitevolvesinwithtime,someoftheseprinciplesincludingtheConservationofEnergyandtheConservationofAngularMomentum.Theconservationlawsofphysicsarelikenon-interestbearingcheckingaccounts.Inthecaseofenergyconservation,youcanmakeenergydepositsandenergywithdrawals,butalltheenergyisaccountedfor.
TherotationofobjectsisgovernedbyalawcalledtheConservationofAngularMomentum,whichappliestoeverythingin
6.Whichisthemostpopularmajorofstudy?
7.Whatwilltheclassdonow?
A.Hearanotherreport.
B.DiscussoneofEmilyDickinson'spoems.
C.Hearalecturegivenbytheteacher.
D.Discusspoemstheyhavewrittenthemselves.
8.Yourwishtovisitsomefar-offplacescanberealizedbyjustreadingbooks.
A.TrueB.Fasle
9.Whatproblemdoesthemanthinkcanbesolvedifthegovernmentputupsmallunitstobuildsolarpanels?
A.Theheatsupply.
B.Theelectricsupply.
C.Thewatersupply.
D.Theunemploymentsituation.
10.聽力原文:Farmersusuallyuseplowstopreparetheirfieldsforplantingcrops.Plowscutintotheground,andliftupweeds,andotherunwantedplants.However,plowingisblamedforcausingseveredamagetotopsoilbyremovingtheplantsthatprotectsoilfrombeingblownorwashedaway.ManyfarmersinSouthAsiaarenowtryingaprocesscalledLowTillFarming.LowTillFarminglimitstheuseofplows.Inthismethodoffarming,seedsandfertilizerareputintothesoilthroughsmallcutsmadeinthesurfaceoftheground.LowTillAgricultureleavesmuchorallthesoilandremainsofplantsontheground.Theyserveasanaturalfertilizerandhelpsupporttherootsoffuturecrops.Theytakeinrainandallowittoflowintothesoilinsteadofrunningoff.IthasbeenprovedthatLowTillFarmingincreasesharvestsandreduceswateruse,andthismethodreducestheneedforchemicalproductsbecausetherearefewerunwantedplants.ScientistssayLowTillFanningisbecomingpopularinSouthAsia,whichisfacingaseverewatershortage.TheysaytheareawillbecomedependentonimportedfoodunlesswaterissavedthroughmethodslikeLowTillFarming.Currently,morethan150millionpeopleinSouthAsiadependonlocalriceandwheatcrops.Farmersgrowriceduringwetweather.Duringthedryseasontheygrowwheatinthesamefields.FarmersareusingtheLowTillFarmingmethodtoplantwheatafterharvestingrice.ScientistssayLowTillAgricultureisoneofthebestexamplesintheworldoftechnologiesworkingforbothpeoplearidtheenvironment.
Whatisthemainproblemcausedbytheusualwayofplowing?
A.Thecrop'sbloomingperiodisdelayed.
B.Therootsofcropsarecutoff.
C.Thetopsoilisseriouslydamaged.
D.Thegrowthofweedsisaccelerated.
11.Mr.Millerwillbuyanewhousewiththemoneyhehaswon.
A.TrueB.Fasle
12.Whatdoweknowaboutthedifferencebetweenmenandwomenintermsofpersonalrelationships?
A.Itiseasierforwomentomakefriendsamongwomen.
B.Womentendtorevealtheirfeelingsmoreeasily.
C.Personalrelationshipsaremorecentraltomostmen'slives.
D.It'seasiertoestablishpersonalrelationshipswithwomenthanwithmen.
13.PartC
Directions:Youwillhearatalk.Asyoulisten,answerthequestionsorcompletethenotesinyourtestbookletforQuestions21-30bywritingNOTMORETHANTHREEwordsinthespaceprovidedontheright.YouwillhearthetalkTWICE.
Younowhave1minutetoreadQuestions21-30.
聽力原文:ForthoseofyouwhoareeitheralreadystudyingintheUnitedStatesorplanningtooneday,itmightbeinterestingtoknowsomethingabouttheforeignstudentpopulationintheUnitedStates.Fortheacademicyear1995/96therewasasumofapproximately344,000foreignstudentsstudyingintheUnitedStates.Thisfigureof344000mayseemlikeaverylargenumberuntilyoucompareitwiththetotalpopulationof241,000,000.Theforeignstudentpopulationhasbeengrowingforanumberofyearsandisstillgrowing,buttherateofincreasehasdroppedsharplyduringthe1990s.Duringthe1980s,thepopulationgrewquiterapidly.Forexample,between1985and1990,theaverageyearlyincreasewas12.5%.However,thepictureinthe1990sisquitedifferent.Therateofincreasehasdeclinedquitenoticeably.Infact,therateofincreasebetween1994/95and1995/96wasonly0.5%,orone-halfofonepercent.Althoughtheoverallrateofincreasehasdroppedtoonly0.5%,thenumberofstudentsfromsomepartsoftheworldisincreasingwhilethenumberofstudentsfromotherareasisdecreasing.Forexample,duringthissameperiod,thatisbetweentheacademicyears1994/95and1995/96,therewasadecreaseinthenumberofstudentsfromtheMiddleEast,whilethenumberofstudentsfromSouthandEastAsiaincreased.Thesechangesinthenumberofstudentscomingfromdifferentpartsoftheworldnodoubtreflectedchangingeconomicandpoliticalsituations.I'msureyouareawareofmanyofthesechanges,andperhapsyoucandiscussthematournextmeeting.Fortodaylet'sconfineourtalktofirst,adiscussionoftheoriginofthesestudents,or,inotherwords,wheretheycamefromsecond,thekindsofstudiestheypursue;and,finally,theacademiclevelstheyarefoundin.Ifwehavealittletimeleft,wemightquicklytalkaboutinwhichgeographicareasmostofthemgotoschool.
Let'sdiscusstheoriginsoftheforeignstudentpopulationintheUnitedStatesfortheacademicyear1995/96.Let'sdiscussitinorderfromthoseareassendingthemoststudentstothoseareassendingthefeweststudents.IfwelookatthefiguresprovidedbytheannualcensusofforeignstudentsintheUnitedStatesfortheyear1995/96,weseethatmostoftheforeignstudentsstudyingintheUnitedStatesduringthisyearwerefromSouthandEastAsia.Thisisaratherlargegeographicalareawhichincludessuchconu-triesasChina,Korea,Pakistan,India,Malaysia,andIndonesia.Thetotalnumberofstudentsfromthisarea,SouthandEastAsiawas156,830.Inotherwords,roughly2outofevery5foreignstudentscomefromSouthandEastAsia.Almost24000ofthistotalwerefromChina.Malaysiawasclosebehindwithjustalittleover23000students.ThenextlargestnumberofstudentscamefromtheMiddleEast.ThenumberofstudentsfromtheMiddleEastcametoaboutone-thirdthenumberfromSouthandEastAsia.ThefourthlargestnumbercamefromSouthAmerica.NextcameEurope,Africa,NorthAmerica,andOceania.Let'srecapitulatewhatwe'vesaid.ThelargestnumberofstudentsstudyingintheUnitedStatesduringtheacademicyear1995/96werefromSouthandEastAsia,followedbytheMiddleEast,SouthAmerica,Europe,Africa,NorthAmerica,andOceania.
Whatfieldsaretheselargenumbersofforeignstudentsstudyingin?Itprobablywon'tsurpriseyouthatthelargestnumberareinthefieldofengineering.Infact,21.7%ofthetotalnumberarestudyingengineering.Businessandmanagementisclosebehind,however,withatotalof18.9%.Thethirdmostpopularfieldw
14.Goodbookscandecreaseourcontentmentwhenwearehappyandlessenourtroubleswhenwearesad.
A.RightB.Wrong
15."Totravelbybook"meanstotakeimaginaryjourneystotheplacesmentionedinthebook.
A.TrueB.Fasle
二、2.UseofEnglish(10題)16.(45)
17.(43)
18.(50)
19.
【C19】
20.(46)
21.(37)
22.
【C12】
23.(36)
24.
【C14】
25.
【C7】
三、3.ReadingComprehension(15題)26.(75)
27.PartA
Directions:ReadthefollowingtextsandanswerthequestionswhichaccompanythembychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.
Whenitcomestotheslowingeconomy,EllenSperoisn'tbitinghernailsjustyet.Butthe47-year-oldmanicuristisn'tcutting,fillingorpolishingasmanynailsasshe'dliketo,either.Mostofherclientsspend$12to$50weekly,butlastmonthtwolongtimecustomerssuddenlystoppedshowingup.Speroblamesthesofteningeconomy.…Imagoodeconomicindicator,”shesays,“Iprovideaservicethatpeoplecandowithoutwhenthey'reconcernedaboutsavingsomedollars.”SoSperoisdownscaling,shoppingatmiddle-browDillard'sdepartmentstorenearhersuburbanClevelandhome,insteadofNeimanMarcus.“Idon'tknowifotherclientsaregoingtoabandonme,too.”shesays.
EvenbeforeAlanGreenspan'sadmissionthatAmerica'sred-hoteconomyiscooling,lotsofworkingfolkshadalreadyseensignsoftheslowdownthemselves.Fromcardealershipstogapoutlets,saleshavebeenlaggingformonthsasshopperstempertheirspending.Forretailers,wholastyeartookin24percentoftheirrevenuebetweenThanksgivingandChristmas,thecautiousapproachiscomingatacrucialtime.Already,expertssay,holidaysalesareoff7percentfromlastyear'space.Butdon'tsoundanyalarmsjustyet.Consumersseemonlyconcerned,notpanicked,andmanysaytheyremainoptimisticabouttheeconomy'slong-termprospects,evenastheydosomemodestbelt-tightening.
Consumerssaythey'renotindespairbecause,despitethedreadfulheadlines,theirownfortunesstillfeelprettygood.InManhattan,“there'sanewgoldrushhappeninginthe$4millionto$10millionrange,predominantlyfedbyWallStreetbonuses,”saysbrokerBarbaraCorcoran.InSanFrancisco,pricesarestillrisingevenasfrenziedoverbiddingquiets.“Insteadof20to30offers,nowmaybeyouonlygettwoorthree,”saysJohnDeadly,aBayAreareal-estatebroker.Andmostfolksstillfeelprettycomfortableabouttheirabilitytofindandkeepajob.
Manyfolksseesilverliningstothisslowdown.Potentialhomebuyerswouldcheerforlowerinterestrates.Employerswouldn'tmindalittlefewerbubblesinthejobmarket.Manyconsumersseemtohavebeeninfluencedbystock-marketswings,whichinvestorsnowviewasanecessaryingredienttoasustainedboom.Dinersmightseeanupside,too.GettingatableatManhattan'shotnewAlainDucasserestaurantneedtobeimpossible.Notanymore.Forthat,Greenspan&Co.maystillbeworthtoasting.
By“EllenSperoisn'tbitinghernailsjustyet”(Line1,Paragraph1),theauthormeans______.
A.Sperocanhardlymaintainherbusiness
B.Speroistoomuchengagedinherwork
C.Sperohasgrownoutofherbadhabit
D.Speroisnotinadesperatesituation
28.(72)
29.Insuranceissupposedtoprovideprotectionagainstfinancialrisks,andwhiledyingtoosoonisonemajorriskweface,anotherriskmoreandmorepeoplefearisoutlivingtheirmoney.Asaresult,agrowingarrayoflifeinsuranceproductsmakeitpossibletoprotectagainstbothofthoserisks.
Inmanyoftoday'slifeinsuranceproducts,MacDonaldnotes,"Thedeathbenefitportionreallyhasbecomeacommoditytypeproduct,soifsomeoneisreallyconcernedaboutthefinancialimpactofdyingyoung,thentheycangetaprettygooddealbybuyingterminsuranceonacommoditybasis--findthecheapestpolicyandbuyit."But,hesays,"Theothersideofthecoinisthatinsurancecompanieshavedevelopedproductsthatcanbeverycreative,andverycompetitivetootheralternatives,includinginvestments.Theycanfillaveryimportantroleinanyoverallinvestmentplan."
Diverseanduniversalpoliciesofferpeoplechoicesinhowmuchtheywanttoputintotheirpoliciesandhowtheywanttheirfundsinvested.Thesefundscanthenbetappedlaterontoprovidealumpsumforpurchasingaretirementhomeorastreamofretirementincome.Lifeinsuranceisanattractiveinvestmentvehicle,becausethe"insidebuildup",theaccumulationoffundsinsideapolicystructure,isnotsubjecttotaxes,incontrasttootherpersonalinvestments.
However,MacDonaldandotherswarnagainstusinginsurancepoliciespurelyasaninvestment.Whiletherearetaxadvantages,therearealsothecostsconnectedwiththeinsurancecoverage,andifyoudon'tneedthatcoveragethesecanbeexpensivewaystoinvest.
Moreover,MacDonaldnotesthatsomecompaniesareofferinginsurancethathasacriticalillnessorlong-termcarebenefit.Thesepoliciesspecifythatifsomeonesuffersaheartattack,forexample,theywillget25%ofthefaceamountoftheinsurancepolicyimmediatelyratherthanatdeath.Oriftheymustbeconfinedtoanursinghome,theywillbeabletouseuptothefaceamountofthepolicytopaythenursinghomecosts.
Amidtheproliferationofinsuranceproduct,MacDonaldsays,"Thepositivesideofitistherearebetterproducts--they'recheaperandmoreflexible.Thenegativesideisthatit'smorecomplicatedandeasiertomakeamistake.Inthepast,itwasplainvanilla;everybodywassellingthesameproductandeverybodyhadtofindanagenttheyliked.Nowtherehasbeensignificantchangesinproductstructureanddesign,andbenefits,andsoitisworthwhiletoshoparound."
Thepurposeofinsuranceisto______.
A.giveyoumoneywheneveryouneed
B.protectyoufromfinancialrisks
C.savemoney
D.outlivemoney
30.
Whatcanbeconcludedaccordingtotheauthor'sviewofthe"obesitygenes"?
A.Peoplewithageneticinclinationtogainweightcanslim.
B.Peoplewhoarebornfatwillremainthatwayalllife.
C.Alleffortstoloseweightwillprovefruitless.
D.Fatpeoplecanliveaveryhappylife,too.
31.
______canbeusedtoheatyourwaterathomeinsteadofsomuchgasorelectricity?
32.(79)
33.At18,AshanthiDeSilvaofsuburbanClevelandisalivingsymbolofoneofthegreatintellectualachievementsofthe20thcentury.Bornwithanextremelyrareandusuallyfataldisorderthatleftherwithoutafunctioningimmunesystem(the"bubble-boydisease",namedafteranearliervictimwhowaskeptaliveforyearsinasterileplastictent),shewastreatedbeginningin1990witharevolutionarynewtherapythatsoughttocorrectthedefectatitsverysource,inthegenesofherwhitebloodcells.Itworked.Althoughherlastgene-therapytreatmentwasin1992,sheiscompletelyhealthywithnormalimmunefunction,accordingtooneofthedoctorswhotreatedher,W.FrenchAndersonoftheUniversityofSouthernCalifornia.Researchershavelongdreamedoftreatingdiseasesfromhemophiliatocancerbyreplacingmutantgeneswithnormalones.Andthedreamingmaycontinuefordecadesmore."Therewillbeagene-basedtreatmentforessentiallyeverydisease,"Andersonsays,"within50years."
It'snotentirelyclearwhymedicinehasbeensoslowtobuildonAnderson'searlysuccess.TheNationalInstitutesofHealthbudgetofficeestimatesitwillspend$432millionongene-therapyresearchin2005,andthereisnoshortageofpromisingleads.Thetherapeuticgenesareusuallydeliveredthroughvirusesthatdon'tcausehumandisease."ThevirusissortoflikeaTrojanhorse,"saysRonaldCrystalofNewYorkPresbyterian/WeillCornellMedicalCollege."Thecargoisthegene."
AttheUniversityofPennsylvania'sAbramsonCancerCenter,immunologistCarlJunerecentlytreatedHIVpatientswithageneintendedtohelptheircellsresisttheinfection.AtCornellUniversity,researchersarepursuinggene-basedtherapiesforParkinson'sdiseaseandararehereditarydisorderthatdestroyschildren'sbraincells.AtStanfordUniversityandtheChildren'sHospitalofPhiladelphia,researchersaretryingtofigureouthowtohelppatientswithhemophiliawhotodaymustinjectthemselveswithexpensiveclottingdrugsforlife.Animalexperimentshaveshowngreatpromise.
Butsomehow,thingsgetlostinthetranslationfromlaboratorytopatient.Inhumantrialsofthehemophiliatreatment,patientsshowaresponseatfirst,butitfadesovertime.Andthefieldhasstillnotrecoveredfromthesetbackitsufferedin1999,whenJesseGelsinger,an18-year-oldwithararemetabolicdisorder,diedafterreceivinganexperimentalgenetherapyattheUniversityofPennsylvania.Someexpertsworrythatthefieldwillbetarnishedfurtherifthenextpeopletobenefitarenotpatientsbutathletesseekinganedge.Thissummer,researchersattheSalkInstituteinSanDiegosaidtheyhadcreateda"marathonmouse"byimplantingagenethatenhancesrunningability;already,officialsattheWorldAnti-DopingAgencyarepreparingtotestathletesforsignsof"genedoping".Buttheprincipleisthesame,whetheryou'retryingtohelpahealthyrunnerrunfasterorallowamuscular-dystro-phypatienttowalk."Everybodyrecognizesthatgenetherapyisaverygoodidea,"saysCrystal."Andeventuallyit'sgoingtowork."
ThecaseofAshanthiDesilvaismentionedinthetextto
A.showthepromiseofgene-therapy
B.giveanexampleofmodemtreatmentforfataldiseases
C.introducetheachievementofAndersonandhisteam
D.explainhowgene-basedtreatmentworks
34.
ItcanbeinferredfromthepassagethatthedifferencesbetweentheGlobalSupportCentreandthelocalre-pairshoplieinallthefollowingEXCEPT______.
A.efficiencyB.locationC.SetupCDsD.attitude
35.
Today'scorporateexecutiveofficersresembletheindustrialistsandagriculturistsinthepastintheirrealizationof______.
A.theessentialrolesoftheworkersinturningoutmoreproducts
B.theimportanceofinformationtoacompany'sdevelopment
C.theimportanceoftechnologyleadingtohighemployeeproductivity
D.thenecessityofprovidingemployeeswithacomfortableenvironment
36.
Whycanmanype
溫馨提示
- 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙,網頁內容里面會有圖紙預覽,若沒有圖紙預覽就沒有圖紙。
- 4. 未經權益所有人同意不得將文件中的內容挪作商業(yè)或盈利用途。
- 5. 人人文庫網僅提供信息存儲空間,僅對用戶上傳內容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內容本身不做任何修改或編輯,并不能對任何下載內容負責。
- 6. 下載文件中如有侵權或不適當內容,請與我們聯(lián)系,我們立即糾正。
- 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- 三農村教育事業(yè)發(fā)展規(guī)劃
- 光伏發(fā)電行業(yè)發(fā)展狀況分析
- 消費級無人機行業(yè)分析
- 中級養(yǎng)老護理復習測試卷含答案
- 婦產科護理復習試題含答案(二)
- 時尚搭配指南表格
- 農業(yè)生產網絡營銷策略與技巧
- 農業(yè)休閑旅游產業(yè)可持續(xù)發(fā)展研究報告
- 項目進展會議重要事項紀要
- 智能財稅綜合實訓 下篇 第四章工作領域二-任務三
- GB/T 4154-1993氧化鑭
- 水泥混凝土路面試驗檢測的要點
- 運輸供應商年度評價表
- 室內消防及給排水管道安裝施工方案方案
- 無創(chuàng)呼吸機參數(shù)調節(jié)課件
- 《過零丁洋》公開課件
- 文件傳閱單范本
- 電工培養(yǎng)計劃表
- 部編版五年級道德與法治下冊課程綱要
- Q∕SY 02006-2016 PVT取樣技術規(guī)程
- 初中物理公式MicrosoftWord文檔
評論
0/150
提交評論