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Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Nursesoftenearnasmuchmoneyasphysiciansdobecausetheytendtoworklongdaysandatoddhours.
CommunicationProblems After20yearsofresearchmycolleaguesandIhavediscoveredthatallcommunicationinvolvesourbodiessometimesprofoundly.Whilewespeakwithwordswealsospeakwitheveryfiberofourbeing.Thislanguageoftheheartisintegraltothehealthandemotionallifeofallofus. Wefoundthatevenapleasantchatabouttheweathercanaffectthecardiovascular心血管性的systemparticularlybloodpressure.Thetraditionalwayoftakingbloodpressure—withastethoscope听诊器—meantthatthepatienthadtokeepsilentandthissilencepreventedcliniciansfromdiscoveringthelinkbetweencommunicationandbloodpressure. Thebreakthroughinourstudiesoccurredin1977whenwemetEdatypicalhypertensivepatientwhocametotheUniversityofMaryland’’sPsychophysiologyCenterfortreatment.WehookedupEdtoanewcom?puterthatcouldcontinuouslymonitorbloodpressure.Wefoundthathispressureimmediatelyincreasedeverytimehespokeevenifhewasdiscussingthemostneutraltopic.WhatwasmoresurprisingwasthatEdwasunawareofthesechanges. Thisfindingsointrigueduswebegantestingothers.Theresultswerethesame.Bloodpressureandheartrateroserapidlywheneverpeopletalked.Weaskedstudentstoreadaloudfromabland乏味的text.Theirbloodpressureandheartrateroserapidlyeverytime.Wetested38deaf-mutevolunteers.Whenthesepeoplesignedtheirbloodpressurealsoincreased.Thisconfirmedoursuspicionthatitwastheactofcommunicationnotjusttalkingthatledtothesechanges. Mostnormaltalkisaseesaw一上一下的动作.Therisingofbloodpressurewhenonetalksisbalancedbyarapidloweringofpressurewhenonelistens.Buttherhythmisoutofsynclinalhypertensives.Theyfluentlyfailtolisten;theyareonguarddefensive.Sotheirpressurestaysup. ThebenefitsoflisteningareseenintheorientingreflexdiscoveredbyPavlov.Whenadoghearsasoundorseesmovementitwillstopallactivityandcockitshead.AnotherRussianscientistE.N.Soklornoticedthatthedog’’sheartrateslows. Asimilarresponseoccursinpeopletoo—anditlowersbloodactivities:readingoutloudstaringatablankwallandwatchingfishinatank.Bloodpressurewashingtestwhenthepeoplespoke.Butitwaslowestwhentheywatchedthefishratherthanwhentheysimplysatandrelaxed.Whetherwatchingfishorlisteningtoanotherpersonattendingcalmlytotheworldoutsideyourselfhelpslowerbloodpressure.WhenIgothypertensivestolistenundefensivelytheirbloodpressureoftenfelldramatically. Whydosomepeoplefindtalkingsostressfulandlisteningsodifficult?Itestedsomehealthynewborns.Whentheycriedtheirbloodpressureoftendoubled.Webeganthinkingaboutpressuresurgesinhypertensivesassimilartothechangeswhenababycries.Thoughcalmonthesurfacewhiletalkingtheirbodiesarescreamingtobeheard.Forthesepeoplecommunicationbecomesadesperatebuthiddenstruggle.Insidetheiradultbodiesisababycryingterrifiedbecausenoonecanhearit. Sohowcanweenjoyconversationyetkeepbloodpressuredown?Bylisteningmorebybreathingregularlywhiletalkingbyalternatingbetweentalkingandpayingattentiontowhattheotherpersonissaying.Butwhatcanhypertensivesdo?Treatmentsthatteachthemtofocusontheirrelationshipandhowtocommunicateinarelaxedwaycanbeastarttowardhealth. Wecanunderstandandcopewithillnessonlywhenweviewourselvesaspartofacomplexworldbeyondtheconfinesofourownindividualskin.Theresponseofourheartsbloodvesselsandmuscleswhenwecommunicatewithspousechildrenfriendsandcolleaguesisasvitaltoourcardiovascularhealthasisexerciseordiet. Fromthearticlewecanconcludethat______.
{{*HTML*}}下面的短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提的是正确信息 请选择A如果该句提的是错误信息请选择B如果该句的信息句的信息文中没有提及请选择C ?? MarriageAdvertisementsin India??EverySundaymorningmillionsofIndians settledownwithacupofteaandspecialweekendissuesoftheirnewspapers justasAmericansdo.Butherewiththemarriageseasonapproachingmanyof themquicklytoaSundayfeaturethatisparticularlyIndian—thecolumnsof marriageadvertisementsinwhichyoungpeoplelookforhusbandsandwives.This isrelatively相关地modernchangeintheage-oldcustomofthearrangedmarriage. Thethousandsofadvertisementspublishedeachweekincreasinglyreflectsocial changesthatcomingtothistraditionalsociety.Forexamplealthoughwomenare stilldescribedintermsofappearanceorskillinthewifelyarts informationaboutherearningpowerisenteringmoreandmoreofthe advertisements.ThisreflectsthearrivalinIndiaoftheworkingwife. ??DivorcewhichusedtobealmostunheardofinIndiais sometimesnowmentionedintheadvertisementsasinthecaseofawomanwhose advertisementinNewDelhinewspaperexplainedthathadbeentheinnocent partywhenhermarriagebrokeup.??Becausethecustomofthe dowry嫁妆marriagepaymentisnowillegal违法的someadvertisements saynodowryorsimplemarriagewhichmeansthesamething.Howeverthe fathersofmanybridegroomsstillrequireit.??Inalandwhere lightskinisoftenregardedassociallypreferablemanyalsorequirethata womanhaveawheat-colorcomplexion面色orthatamanbetallfairand handsome.??Advertisementsareplacedandeagerlyreadbyawide rangeofpeopleintheupperclassesmostlyincities.Manyofthemreceive dozensofanswers.There’snothingembarrassingaboutitexplaineda Calcuttabusinessmanadvertisingason-in-law.It’sjustanotherwayof broadeningthecontactsandincreasesthepossibilityofdoingthecontactsand increasingthepossibilitiesofdoingthebestoneforone’sdaughter. ??Becauseofhighunemploymentandagenerallypoorstandardof livinghereoneofthebestattractionsamarriageadvertisementcanofferisa permittoliveabroadespeciallyinCanadaortheUnitedStates.Apersonwho hasonecangetwhathewants.??OnerecentSundayinMadrasfor exampleaPunjabiengineerlivinginSanFranciscoadvertisedforabeautiful slimbridewithlovelyfeaturesknowingmusicanddance.Andamanwhose advertisementsaidthatheheldanAmericanimmigrationpermitwasabletosay onlygirlsfromrichwell-connectedfamiliesneedapply. India’ssocietyischanging.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
Vegetarianism Astrictvegetarianisapersonwhoneverinhislifeeatsanythingderivedfromanimals.Themainobjectiontovegetarianismonalong-termbasisisthedifficultytogettingenoughproteinthebodybuildingelementsinfood.Ifyouhaveeverbeenwithoutmeatoranimalfoodsforsomedaysofweekssayreligiousreasonsyouwillhavenoticedthatyoutendtogetphysicallyratherweak.Youaregladwhenthefastisoverandyougetyourrewardofasucculentmeatmeal.Proteinsarebuiltupfromapproximatelytwentyfoodelementscalledamino-acidswhicharefoundmoreabundantlyinanimalproteinthaninvegetableprotein.Thismeansyouhavetoeatagreatdealmorevegetablethananimalfoodinordertogetenoughoftheseamino-acids.Agreatofthevegetablefoodgoestowasteinthisprocessandfromthephysiologicalpointofviewthereisnotmuchtobesaidinfavoroflife-longvegetarianism. Theeconomicsideofthequestionthoughmustbeconsidered.Vegetablefoodismuchcheaperthananimalfood.Howeversinceonlyasmallproportionofthevegetableproteinisusefulforbody-buildingpurposesaconsistentvegetarianifheistogainthenecessary70gramsofproteinadayhastoconsumeagreaterbulkoffoodthanhisdigestiveorganscancomfortablydealwith.Infairnessthoughitmustbepointedoutthatvegetariansclaimtheyneedfarlessthan70gramsofproteinaday. Whetherornotvegetarianismshouldbeadvocatedforadultsitisdefinitelyunsatisfactoryforgrowingchildrenwhoneedmoreproteinthantheycangetfromvegetablesource’’s.Alacto-vegetariandietwhichincludesmilkandmilkproductssuchascheesecanhoweverbesatisfactoryaslongasenoughmilkandmilkproductsareconsumed. Meatandcheesearethebestsourcesofusabledigestibleandnextcomemilkfishandeggs.Slowandcarefulcookingofmeatmakesitmoredigestibleandassistsinthebreakingdownoftheproteincontentbythebody.Whencookingvegetableshoweverthevitaminsandinparticularthewater-solubevitaminCshouldbelostthroughovercooking. Theunderlinedwordlacto-vegetarianinPara.4means______.
Frommy{{U}}standpoint{{/U}}youknowthisthingisjustfunny.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
Don't{{U}}irritate{{/U}}hershe'sonashortfusetoday.
Thecollegeofferscoursesinavarietyoftrades.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
Vegetarianism Astrictvegetarianisapersonwhoneverinhislifeeatsanythingderivedfromanimals.Themainobjectiontovegetarianismonalong-termbasisisthedifficultytogettingenoughproteinthebodybuildingelementsinfood.Ifyouhaveeverbeenwithoutmeatoranimalfoodsforsomedaysofweekssayreligiousreasonsyouwillhavenoticedthatyoutendtogetphysicallyratherweak.Youaregladwhenthefastisoverandyougetyourrewardofasucculentmeatmeal.Proteinsarebuiltupfromapproximatelytwentyfoodelementscalledamino-acidswhicharefoundmoreabundantlyinanimalproteinthaninvegetableprotein.Thismeansyouhavetoeatagreatdealmorevegetablethananimalfoodinordertogetenoughoftheseamino-acids.Agreatofthevegetablefoodgoestowasteinthisprocessandfromthephysiologicalpointofviewthereisnotmuchtobesaidinfavoroflife-longvegetarianism. Theeconomicsideofthequestionthoughmustbeconsidered.Vegetablefoodismuchcheaperthananimalfood.Howeversinceonlyasmallproportionofthevegetableproteinisusefulforbody-buildingpurposesaconsistentvegetarianifheistogainthenecessary70gramsofproteinadayhastoconsumeagreaterbulkoffoodthanhisdigestiveorganscancomfortablydealwith.Infairnessthoughitmustbepointedoutthatvegetariansclaimtheyneedfarlessthan70gramsofproteinaday. Whetherornotvegetarianismshouldbeadvocatedforadultsitisdefinitelyunsatisfactoryforgrowingchildrenwhoneedmoreproteinthantheycangetfromvegetablesource’’s.Alacto-vegetariandietwhichincludesmilkandmilkproductssuchascheesecanhoweverbesatisfactoryaslongasenoughmilkandmilkproductsareconsumed. Meatandcheesearethebestsourcesofusabledigestibleandnextcomemilkfishandeggs.Slowandcarefulcookingofmeatmakesitmoredigestibleandassistsinthebreakingdownoftheproteincontentbythebody.Whencookingvegetableshoweverthevitaminsandinparticularthewater-solubevitaminCshouldbelostthroughovercooking. Avegetarianisapersonwho______.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
Vegetarianism Astrictvegetarianisapersonwhoneverinhislifeeatsanythingderivedfromanimals.Themainobjectiontovegetarianismonalong-termbasisisthedifficultytogettingenoughproteinthebodybuildingelementsinfood.Ifyouhaveeverbeenwithoutmeatoranimalfoodsforsomedaysofweekssayreligiousreasonsyouwillhavenoticedthatyoutendtogetphysicallyratherweak.Youaregladwhenthefastisoverandyougetyourrewardofasucculentmeatmeal.Proteinsarebuiltupfromapproximatelytwentyfoodelementscalledamino-acidswhicharefoundmoreabundantlyinanimalproteinthaninvegetableprotein.Thismeansyouhavetoeatagreatdealmorevegetablethananimalfoodinordertogetenoughoftheseamino-acids.Agreatofthevegetablefoodgoestowasteinthisprocessandfromthephysiologicalpointofviewthereisnotmuchtobesaidinfavoroflife-longvegetarianism. Theeconomicsideofthequestionthoughmustbeconsidered.Vegetablefoodismuchcheaperthananimalfood.Howeversinceonlyasmallproportionofthevegetableproteinisusefulforbody-buildingpurposesaconsistentvegetarianifheistogainthenecessary70gramsofproteinadayhastoconsumeagreaterbulkoffoodthanhisdigestiveorganscancomfortablydealwith.Infairnessthoughitmustbepointedoutthatvegetariansclaimtheyneedfarlessthan70gramsofproteinaday. Whetherornotvegetarianismshouldbeadvocatedforadultsitisdefinitelyunsatisfactoryforgrowingchildrenwhoneedmoreproteinthantheycangetfromvegetablesource’’s.Alacto-vegetariandietwhichincludesmilkandmilkproductssuchascheesecanhoweverbesatisfactoryaslongasenoughmilkandmilkproductsareconsumed. Meatandcheesearethebestsourcesofusabledigestibleandnextcomemilkfishandeggs.Slowandcarefulcookingofmeatmakesitmoredigestibleandassistsinthebreakingdownoftheproteincontentbythebody.Whencookingvegetableshoweverthevitaminsandinparticularthewater-solubevitaminCshouldbelostthroughovercooking. Whichofthefollowingisbestreflectedtheauthor’sattitude?
Theonce{{U}}barren{{/U}}hillsidesarenowgoodfarmland.
DefectiveGenesandHumanHealth Eachofuscarriesabouthalfadozendefective有缺点的genes.Weremainblissfully快乐地unawareofthisfactunlessweoroneofourcloserelativesareamongstthemanymillionswhosufferfromageneticdisease.Aboutoneintenpeoplehasorwilldevelopatsomelaterstageaninherited遗传的geneticdisorderandapproximately2800specificconditionsareknowntobecausedbydefectsmutationsinjustoneofthepatient’’sgenes.Somesinglegenedisordersarequitecommon-—cystic胞状的fibrosis纤维化isfoundinoneoutofevery2500babiesbornintheWesternWorld—andintotaldiseasesthatcanbetracedtosinglegenedefectsaccountforabout5%ofalladmissionstochildren’’shospitals. Mostofusdonotsufferanyharmfuleffectsfromourdefectivegenesbecausewecarrytwocopiesofnearlyallgenesonederivedfromourmotherandtheotherfromourfather.Theonlyexceptionstothisrulearethegenesfoundonthemalesexchromosomes染色体MaleshaveoneXandoneYchromosometheformerfromthemotherandthelatterfromthefathersoeachcellhasonlyonecopyofthegenesonthesechromosomes.Inthemajorityofcasesonenormalgeneissufficienttoavoidallthesymptomsofdisease.Ifthepotentiallyharmfulgeneisrecessive后退的thenitsnormalcounterpart配对的willcarryoutallthetasksassignedtoboth.Onlyifweinheritfromourparentstwocopiesofthesamerecessivegenewilladiseasedevelop. Ontheotherhandifthegeneisdominant显性的italonecanproducethediseaseevenifitscounterpartisnormal.Clearlyonlythechildrenofaparentwiththediseasecanbeaffectedandthenaverageonlyhalfthechildrenwillbeaffected.Huntington’’schorea舞蹈病aseverediseaseofthenervoussystemwhichbecomesapparentonlyinadulthoodisanexampleofadominantgeneticdisease. FinallytherearetheXchromosome-linkedgeneticdiseases.Asmaleshaveonlyonecopyofthegenesfromthischromosometherearenoothersavailabletofulfillthedefectivegene’’sfunction.ExamplesofsuchdiseasesareDuchennemusculardystrophy营养不良andperhapsmostwellknownofallhemophilia血友病. QueenVictoriawasacarrierofthedefectivegeneresponsibleforhemophiliaandthroughheritwastransmittedtotheroyalfamiliesofRussiaSpainandPrussia.MinorcutsandbruiseswhichwoulddolittleharmtomostpeoplecanprovefataltohemophiliacswholacktheproteinsFactorsVIIIandIV凝血因子VIII和IVinvolvedintheclotting血凝结ofbloodwhicharecodedforbythedefectivegenes.Sadlybeforetheseproteinsweremadeavailablethroughgeneticengineeringhemophiliacsweretreatedwithproteinsisolatedfromhumanblood.Someofthisbloodwascontaminated污损withtheAIDSvirusandhasresultedintragic悲惨的consequencesformanyhemophiliacs.Useofgeneticallyengineeredproteinsintherapeuticapplicationsratherthanbloodproductswillavoidtheseproblemsinthefuture. Notalldefectivegenesnecessarilyproducedetrimental有害的effectssincetheenvironmentinwhichthegeneoperatesisalsoofimportance.Aclassicexampleofageneticdiseasehavingabeneficialeffectonsurvivalisillustratedbytherelationshipbetweensickle-cell镶形血球anemia贫血症andmalaria疟病.Onlyindividualshavingtwocopiesofthesickle-cellgeneandonenormalgeneareunaffectedandmoreimportantlyareabletoresistinfection传染bymalarialparasites寄生虫.Theclearadvantageinthiscaseofhavingonedefectivegeneexplainswhythisgeneiscommoninpopulationsinthoseareasoftheworldwheremalariaisendemic特有的. Wecaninferfrompara.4that______.
Hewasnot{{U}}eligible{{/U}}fortheexaminationbecausehewasoverage.
DefectiveGenesandHumanHealth Eachofuscarriesabouthalfadozendefective有缺点的genes.Weremainblissfully快乐地unawareofthisfactunlessweoroneofourcloserelativesareamongstthemanymillionswhosufferfromageneticdisease.Aboutoneintenpeoplehasorwilldevelopatsomelaterstageaninherited遗传的geneticdisorderandapproximately2800specificconditionsareknowntobecausedbydefectsmutationsinjustoneofthepatient’’sgenes.Somesinglegenedisordersarequitecommon-—cystic胞状的fibrosis纤维化isfoundinoneoutofevery2500babiesbornintheWesternWorld—andintotaldiseasesthatcanbetracedtosinglegenedefectsaccountforabout5%ofalladmissionstochildren’’shospitals. Mostofusdonotsufferanyharmfuleffectsfromourdefectivegenesbecausewecarrytwocopiesofnearlyallgenesonederivedfromourmotherandtheotherfromourfather.Theonlyexceptionstothisrulearethegenesfoundonthemalesexchromosomes染色体MaleshaveoneXandoneYchromosometheformerfromthemotherandthelatterfromthefathersoeachcellhasonlyonecopyofthegenesonthesechromosomes.Inthemajorityofcasesonenormalgeneissufficienttoavoidallthesymptomsofdisease.Ifthepotentiallyharmfulgeneisrecessive后退的thenitsnormalcounterpart配对的willcarryoutallthetasksassignedtoboth.Onlyifweinheritfromourparentstwocopiesofthesamerecessivegenewilladiseasedevelop. Ontheotherhandifthegeneisdominant显性的italonecanproducethediseaseevenifitscounterpartisnormal.Clearlyonlythechildrenofaparentwiththediseasecanbeaffectedandthenaverageonlyhalfthechildrenwillbeaffected.Huntington’’schorea舞蹈病aseverediseaseofthenervoussystemwhichbecomesapparentonlyinadulthoodisanexampleofadominantgeneticdisease. FinallytherearetheXchromosome-linkedgeneticdiseases.Asmaleshaveonlyonecopyofthegenesfromthischromosometherearenoothersavailabletofulfillthedefectivegene’’sfunction.ExamplesofsuchdiseasesareDuchennemusculardystrophy营养不良andperhapsmostwellknownofallhemophilia血友病. QueenVictoriawasacarrierofthedefectivegeneresponsibleforhemophiliaandthroughheritwastransmittedtotheroyalfamiliesofRussiaSpainandPrussia.MinorcutsandbruiseswhichwoulddolittleharmtomostpeoplecanprovefataltohemophiliacswholacktheproteinsFactorsVIIIandIV凝血因子VIII和IVinvolvedintheclotting血凝结ofbloodwhicharecodedforbythedefectivegenes.Sadlybeforetheseproteinsweremadeavailablethroughgeneticengineeringhemophiliacsweretreatedwithproteinsisolatedfromhumanblood.Someofthisbloodwascontaminated污损withtheAIDSvirusandhasresultedintragic悲惨的consequencesformanyhemophiliacs.Useofgeneticallyengineeredproteinsintherapeuticapplicationsratherthanbloodproductswillavoidtheseproblemsinthefuture. Notalldefectivegenesnecessarilyproducedetrimental有害的effectssincetheenvironmentinwhichthegeneoperatesisalsoofimportance.Aclassicexampleofageneticdiseasehavingabeneficialeffectonsurvivalisillustratedbytherelationshipbetweensickle-cell镶形血球anemia贫血症andmalaria疟病.Onlyindividualshavingtwocopiesofthesickle-cellgeneandonenormalgeneareunaffectedandmoreimportantlyareabletoresistinfection传染bymalarialparasites寄生虫.Theclearadvantageinthiscaseofhavingonedefectivegeneexplainswhythisgeneiscommoninpopulationsinthoseareasoftheworldwheremalariaisendemic特有的. WhichofthefollowingstatementsongenesanddiseasesisNOTTRUE?
Themanager{{U}}allocate{{/U}}dutiestotheclerks.
Manyproblemsthatbotheredpeoplethencontinuetoexisttoday.
CommunicationProblems After20yearsofresearchmycolleaguesandIhavediscoveredthatallcommunicationinvolvesourbodiessometimesprofoundly.Whilewespeakwithwordswealsospeakwitheveryfiberofourbeing.Thislanguageoftheheartisintegraltothehealthandemotionallifeofallofus. Wefoundthatevenapleasantchatabouttheweathercanaffectthecardiovascular心血管性的systemparticularlybloodpressure.Thetraditionalwayoftakingbloodpressure—withastethoscope听诊器—meantthatthepatienthadtokeepsilentandthissilencepreventedcliniciansfromdiscoveringthelinkbetweencommunicationandbloodpressure. Thebreakthroughinourstudiesoccurredin1977whenwemetEdatypicalhypertensivepatientwhocametotheUniversityofMaryland’’sPsychophysiologyCenterfortreatment.WehookedupEdtoanewcom?puterthatcouldcontinuouslymonitorbloodpressure.Wefoundthathispressureimmediatelyincreasedeverytimehespokeevenifhewasdiscussingthemostneutraltopic.WhatwasmoresurprisingwasthatEdwasunawareofthesechanges. Thisfindingsointrigueduswebegantestingothers.Theresultswerethesame.Bloodpressureandheartrateroserapidlywheneverpeopletalked.Weaskedstudentstoreadaloudfromabland乏味的text.Theirbloodpressureandheartrateroserapidlyeverytime.Wetested38deaf-mutevolunteers.Whenthesepeoplesignedtheirbloodpressurealsoincreased.Thisconfirmedoursuspicionthatitwastheactofcommunicationnotjusttalkingthatledtothesechanges. Mostnormaltalkisaseesaw一上一下的动作.Therisingofbloodpressurewhenonetalksisbalancedbyarapidloweringofpressurewhenonelistens.Buttherhythmisoutofsynclinalhypertensives.Theyfluentlyfailtolisten;theyareonguarddefensive.Sotheirpressurestaysup. ThebenefitsoflisteningareseenintheorientingreflexdiscoveredbyPavlov.Whenadoghearsasoundorseesmovementitwillstopallactivityandcockitshead.AnotherRussianscientistE.N.Soklornoticedthatthedog’’sheartrateslows. Asimilarresponseoccursinpeopletoo—anditlowersbloodactivities:readingoutloudstaringatablankwallandwatchingfishinatank.Bloodpressurewashingtestwhenthepeoplespoke.Butitwaslowestwhentheywatchedthefishratherthanwhentheysimplysatandrelaxed.Whetherwatchingfishorlisteningtoanotherpersonattendingcalmlytotheworldoutsideyourselfhelpslowerbloodpressure.WhenIgothypertensivestolistenundefensivelytheirbloodpressureoftenfelldramatically. Whydosomepeoplefindtalkingsostressfulandlisteningsodifficult?Itestedsomehealthynewborns.Whentheycriedtheirbloodpressureoftendoubled.Webeganthinkingaboutpressuresurgesinhypertensivesassimilartothechangeswhenababycries.Thoughcalmonthesurfacewhiletalkingtheirbodiesarescreamingtobeheard.Forthesepeoplecommunicationbecomesadesperatebuthiddenstruggle.Insidetheiradultbodiesisababycryingterrifiedbecausenoonecanhearit. Sohowcanweenjoyconversationyetkeepbloodpressuredown?Bylisteningmorebybreathingregularlywhiletalkingbyalternatingbetweentalkingandpayingattentiontowhattheotherpersonissaying.Butwhatcanhypertensivesdo?Treatmentsthatteachthemtofocusontheirrelationshipandhowtocommunicateinarelaxedwaycanbeastarttowardhealth. Wecanunderstandandcopewithillnessonlywhenweviewourselvesaspartofacomplexworldbeyondtheconfinesofourownindividualskin.Theresponseofourheartsbloodvesselsandmuscleswhenwecommunicatewithspousechildrenfriendsandcolleaguesisasvitaltoourcardiovascularhealthasisexerciseordiet. IntheninthparagraphthesentenceTheyfrequentlyfailedtolistenmeans______.
Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Thenursesinahospitalusuallyspendmoretimewiththepatientsthanthephysicians.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
ThestoriesofSarahOrneJewettareconsideredbymanytobemoreauthenticallyregionalthanthoseofBretHarte.
Wemust{{U}}abide{{/U}}bytherules.
Nurses Thephysiciansinahospitalformthecoreofthemedicalstaff.Buttheycouldnotprovideeffectivemedicalcaretotheirpatientswithoutthehelpofnumerousothermedicalworkers.Fromtheangleofthepatientsthenursingstaffisparticularlyimportant.Nursesareusuallyinclosecontactwithpatientsaslongastheyareinthehospital. Anursedoesnotstudyforasmanyyearsasadoctor.Howevereachmustbeequallytrained.Caringforsickpersonsrequiresagreatdealofpatienceandconcern.Mostnursesworklongdaysandtheyoftenmustworkatoddhoursorduringthenight. Thenursingstaffinahospitalisusuallyquitelargeandvarious.Nursingservicesafterallmustbeprovidedona24-hourbasis.Thereareprofessional专业的nursespracticalnursesnursesaidsandorderlies勤杂工.Thegeneraltermnursereferstoapersontrainedtoofferbedsidecaretosickpersons. Underthesupervision管理oftheheadnursethenursingstaffinahospitalwardmustattendtopatients’’needs.Thisresponsibilitycontinuesaroundtheclockandsonursesmustworkinshifts.Ashiftisaperiodofdutyusuallyeighthoursinlength.Thenursesonthewardrotate轮换theirshifts.Sometaketurnsworkingnightduty;othersworkoddshifts.Allofthemworkoutofacentralareaonthewardcalledthenursesstation. Anursemustalwaysbeonherguard.Shecanneveraffordtobecareless.Thisistrueinallnursingsituationsbutitisespeciallytrueintheintensivecareunit.Patientsunderintensivecarearecriticallyillandtheymustbemonitoredatalltimes.Thenurseswhodointensivecaredutyhaveoneofthemostdemandingjobsinthehospital. Thenurse’sstationistheonlyplacewherenursesinahospitalwardcanbefound.
Hernovel{{U}}depicts{{/U}}anambitiousChinese.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
DefectiveGenesandHumanHealth Eachofuscarriesabouthalfadozendefective有缺点的genes.Weremainblissfully快乐地unawareofthisfactunlessweoroneofourcloserelativesareamongstthemanymillionswhosufferfromageneticdisease.Aboutoneintenpeoplehasorwilldevelopatsomelaterstageaninherited遗传的geneticdisorderandapproximately2800specificconditionsareknowntobecausedbydefectsmutationsinjustoneofthepatient’’sgenes.Somesinglegenedisordersarequitecommon-—cystic胞状的fibrosis纤维化isfoundinoneoutofevery2500babiesbornintheWesternWorld—andintotaldiseasesthatcanbetracedtosinglegenedefectsaccountforabout5%ofalladmissionstochildren’’shospitals. Mostofusdonotsufferanyharmfuleffectsfromourdefectivegenesbecausewecarrytwocopiesofnearlyallgenesonederivedfromourmotherandtheotherfromourfather.Theonlyexceptionstothisrulearethegenesfoundonthemalesexchromosomes染色体MaleshaveoneXandoneYchromosometheformerfromthemotherandthelatterfromthefathersoeachcellhasonlyonecopyofthegenesonthesechromosomes.Inthemajorityofcasesonenormalgeneissufficienttoavoidallthesymptomsofdisease.Ifthepotentiallyharmfulgeneisrecessive后退的thenitsnormalcounterpart配对的willcarryoutallthetasksassignedtoboth.Onlyifweinheritfromourparentstwocopiesofthesamerecessivegenewilladiseasedevelop. Ontheotherhandifthegeneisdominant显性的italonecanproducethediseaseevenifitscounterpartisnormal.Clearlyonlythechildrenofaparentwiththediseasecanbeaffectedandthenaverageonlyhalfthechildrenwillbeaffected.Huntington’’schorea舞蹈病aseverediseaseofthenervoussystemwhichbecomesapparentonlyinadulthoodisanexampleofadominantgeneticdisease. FinallytherearetheXchromosome-linkedgeneticdiseases.Asmaleshaveonlyonecopyofthegenesfromthischromosometherearenoothersavailabletofulfillthedefectivegene’’sfunction.ExamplesofsuchdiseasesareDuchennemusculardystrophy营养不良andperhapsmostwellknownofallhemophilia血友病. QueenVictoriawasacarrierofthedefectivegeneresponsibleforhemophiliaandthroughheritwastransmittedtotheroyalfamiliesofRussiaSpainandPrussia.MinorcutsandbruiseswhichwoulddolittleharmtomostpeoplecanprovefataltohemophiliacswholacktheproteinsFactorsVIIIandIV凝血因子VIII和IVinvolvedintheclotting血凝结ofbloodwhicharecodedforbythedefectivegenes.Sadlybeforetheseproteinsweremadeavailablethroughgeneticengineeringhemophiliacsweretreatedwithproteinsisolatedfromhumanblood.Someofthisbloodwascontaminated污损withtheAIDSvirusandhasresultedintragic悲惨的consequencesformanyhemophiliacs.Useofgeneticallyengineeredproteinsintherapeuticapplicationsratherthanbloodproductswillavoidtheseproblemsinthefuture. Notalldefectivegenesnecessarilyproducedetrimental有害的effectssincetheenvironmentinwhichthegeneoperatesisalsoofimportance.Aclassicexampleofageneticdiseasehavingabeneficialeffectonsurvivalisillustratedbytherelationshipbetweensickle-cell镶形血球anemia贫血症andmalaria疟病.Onlyindividualshavingtwocopiesofthesickle-cellgeneandonenormalgeneareunaffectedandmoreimportantlyareabletoresistinfection传染bymalarialparasites寄生虫.Theclearadvantageinthiscaseofhavingonedefectivegeneexplainswhythisgeneiscommoninpopulationsinthoseareasoftheworldwheremalariaisendemic特有的. thediseasepara.7refersto______.
Language Whenmostofusthinkaboutlanguagewethinkfirstaboutwords.Thusthehardestpartoflearningaforeignlanguagemayseemtobememorizing【51】vocabulary;whenweobserveachildfirstacquiringspeechwetalkofhisprogress【52】amatteroflearningnewwords.Wearealso【53】tofeelthattheadultspeakerwiththelargestvocabularyhasthebest【54】ofEnglish.Tothink【55】alanguageasjustastockofwordsis【56】quitewrong.Wordsalonedonot【57】alanguage;agrammaris【58】tocombinetheminsomeintelligibleway.Moreoverwordsarerelativelyeasytolearnandindeedallofusgo【59】learningthemallour【60】.Theyarealsothe【61】stablepartoflanguage.Wordscomeinto【62】changetheirpronunciationsandmeaningsanddisappearcompletelyallwithcomparativeease.Yetitistruethatthe【63】isfocusoflanguage.Itisinwords【64】soundsandmeaningsinterlocktoallowusto【65】withoneanotheranditiswordsthatwearrangetogethertomakesentencesconversationsanddiscourseofallkinds.Thuswehaveaparadoxinthatthemostshort-livedpartoflanguageisalsothecentrewheremeaningpronunciationandgrammarcometogether.
Itis{{U}}absurd{{/U}}togooutinsuchterribleweather.
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