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{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断?? ??Aninternationalteamofresearch scientistshascreatedanewkindofricethatcontainsVitaminA.The researchersusedgeneticengineeringtocreatethenewrice.Geneticengineering isthetechnologyofchangingthegenesoflivingthings.Theresearcherssay thericecouldhelpmillionsofpeoplewhodonotgetenoughVitaminAinthe foodtheyeat.ThefindingswerepublishedinSciencemagazine.? ?VitaminAisnecessaryforthebody’snaturaldefensesystemagainst disease.VitaminAisneededtohelppreventskinandothertissuesfromdrying out.Italsoproducesalight-sensitivesubstanceintheeyes.? ?PeoplewhodonotgetenoughVitaminAcannotseewellinthedark.They maydevelopaconditionthatdriestheeyes.Theconditioncanresultin infectionsthatleadtoblindness.??AlackofVitaminAisa majorcauseofblindnessamongchildren.Healthexpertsestimatethat124 millionchildrenaroundtheworlddonoteatenoughfoodswithVitamin A.??VitaminAisfoundinfishliveroilandintheyellowpart ofeggs.Vegetablessuchascarrotsandsweetpotatoescontainbetacarotenea substancethatthebodychangesintoVitaminA.??Publichealth campaignstoprovideVitaminAtothosewhoneedithaveprovedcostly.Andthey arenotalwayseffective.Thathasledresearcherstotrytocreatefoodswith thevitamin.??Riceisoneofthemostcommoncropsgrown worldwide.HowevernormalricelacksVitaminA.Researchersatalaboratoryin Switzerlandfoundawaytochangethegeneticmaterialofrice.Theyaddedthree genestotherice.Thegenesproducebetacarotenethechemicalthatourbodies changeintoVitaminA.??Thenewricehasagoldenyellowcolor. Theresearcherssay200gramsofthericehaveenoughbetacarotenetoprovide thenecessaryamountofVitaminA.??BiologistMaryLouGuerinot ofDartmouthCollegewroteacommentarypublishedwiththereportinscience magazine.Shesaidthericeisanexcellentexampleofthegoodthingsthatcan bedonewithgeneticengineering.Howevercriticsofgeneticengineeringargue thatchangingplantgenescouldincreaseriskstohumanhealthorthe environment.WithVitaminApeoplewon’tgetanydiseases.
Althoughbusesare{{U}}scheduled{{/U}}todepartatacertainhourtheyareoftenlate.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断?? ??Aninternationalteamofresearch scientistshascreatedanewkindofricethatcontainsVitaminA.The researchersusedgeneticengineeringtocreatethenewrice.Geneticengineering isthetechnologyofchangingthegenesoflivingthings.Theresearcherssay thericecouldhelpmillionsofpeoplewhodonotgetenoughVitaminAinthe foodtheyeat.ThefindingswerepublishedinSciencemagazine.? ?VitaminAisnecessaryforthebody’snaturaldefensesystemagainst disease.VitaminAisneededtohelppreventskinandothertissuesfromdrying out.Italsoproducesalight-sensitivesubstanceintheeyes.? ?PeoplewhodonotgetenoughVitaminAcannotseewellinthedark.They maydevelopaconditionthatdriestheeyes.Theconditioncanresultin infectionsthatleadtoblindness.??AlackofVitaminAisa majorcauseofblindnessamongchildren.Healthexpertsestimatethat124 millionchildrenaroundtheworlddonoteatenoughfoodswithVitamin A.??VitaminAisfoundinfishliveroilandintheyellowpart ofeggs.Vegetablessuchascarrotsandsweetpotatoescontainbetacarotenea substancethatthebodychangesintoVitaminA.??Publichealth campaignstoprovideVitaminAtothosewhoneedithaveprovedcostly.Andthey arenotalwayseffective.Thathasledresearcherstotrytocreatefoodswith thevitamin.??Riceisoneofthemostcommoncropsgrown worldwide.HowevernormalricelacksVitaminA.Researchersatalaboratoryin Switzerlandfoundawaytochangethegeneticmaterialofrice.Theyaddedthree genestotherice.Thegenesproducebetacarotenethechemicalthatourbodies changeintoVitaminA.??Thenewricehasagoldenyellowcolor. Theresearcherssay200gramsofthericehaveenoughbetacarotenetoprovide thenecessaryamountofVitaminA.??BiologistMaryLouGuerinot ofDartmouthCollegewroteacommentarypublishedwiththereportinscience magazine.Shesaidthericeisanexcellentexampleofthegoodthingsthatcan bedonewithgeneticengineering.Howevercriticsofgeneticengineeringargue thatchangingplantgenescouldincreaseriskstohumanhealthorthe environment.Geneticengineeringisabsolutelygoodforhuman.
{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
{{*HTML*}}{{B}}第二篇{{/B}} ??DorotheaDixlefthomeatanearly age-ofherownfreewill-tolivewithhergrand-mother.??At fourteenDorotheawasteachingschoolatWorcesterMassachusetts.Ashorttime aftershehadbegunteachingsheestablishedaschoolforyounggirlsinher grandparents’home.StresswasplacedonmoralcharacteratDorothea’sschool whichsheconducteduntilshewasthirty-three.??Shewasforced togiveupteachingathergrandparents’homehoweverwhenshebecameill.A fewyearsofinactivityfollowed.??In1841Dorotheabeganto teachagainacceptingaSundayschoolclassintheEastCambridge Massachusettsjail.Hereshefirstcameuponinsanepeoplelockeduptogether withcriminals.??Inthosedaysinsanepeopleweretreatedeven worsethancriminals.Therewereonly?afewasylums精神病院intheentire country.Thereforejailspoorhousesandhousesofcorrectionwereusedto confinetheinsane.??DorotheaDixmadeacarefulinvestigationof theinhumantreatmentoftheinsane.Itwasconsideredunfeminine不适合女性的fora womantodevoteherselftosuchworkatthistime.Butthisdidnotstop DorotheaDixinhereffortstoprovidepropermedicalcareforthe insane.??Graduallybecauseofherinvestigationsconditions wereimproved.Morethanthirtymentalinstitutionswerefoundedor re-establishedintheUnitedStatedbecauseofherefforts.Dorotheaalso extendedherinvestigationstoEnglandandtootherpartsofEurope.? ?DuringtheCivilWarDorotheaservedassuperintendent管理人ofwomen hospitalnurses?intheUnionarmy.Whenthewarwasovershereturnedto herworkofimprovingconditionsforinsane people.HowaretheeventsofDorotheaDix’slifepresentedinthepassage?
{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Ifyouwanttostayyoungsitdownandhaveagoodthink.Thisisthe researchfindingofateamofJapanesedoctorswhosaythatmostofourbrains arenotgettingenoughexercise--andasaresultweareageingunnecessarily soon.??2.ProfessorTaijuMatsuzawawantedtofindoutwhy otherwisehealthyfarmersinnorthernJapanappearedtobelosingtheirability tothinkandreasonatarelativelyearlyageandhowtheprocessofageing couldbesloweddown.??3.WithateamofcolleaguesatTokyo NationalUniversityhesetaboutmeasuringbrainvolumesofathousandpeople ofdifferentagesandvaryingoccupations.??4.Computer technologyenabledtheresearcherstoobtainprecisemeasurementsofthevolume ofthefrontandsidesectionsofthebrainwhichrelatetointellect智能and emotionanddeterminethehumancharacter.Therearsectionofthebrain whichcontrolsfunctionslikeeatingandbreathingdoesnotcontractwithage andonecancontinuelivingwithoutintellectualoremotionalfaculties. ??5.Contractionoffrontandsideparts--ascellsdieoff--was observedinsomesubjectsintheirthirtiesbutitwasstillnotevidentin somesixtyandseventy-year-olds.??6.Matsuzawaconcludedfrom histeststhatthereisasimpleremedytothecontractionnormallyassociated withage--usingthehead.??7.Thefindingsshowingeneralterms thatcontractionofthebrainbeginssoonerinpeopleinthecountrythaninthe towns.ThoseleastatrisksaysMatuzawaarelawyersfollowedbyuniversity professorsanddoctors.Whitecollarworkersdoingroutineworkingovernment officesarehoweveraslikelytohaveshrinkingbrainsasthefarmworkerbus driverandshopassistant.??8.Matsuzawa’sfindingsshowthat thinkingcanpreventthebrainfromshrinking.Bloodmustcirculateproperly intheheadtosupplythefreshoxygenthebrainceilsneed.Thebestwayto maintaingoodbloodcirculationisthroughusingthebrainhesaysThink hardandengageinconversation.Don’trelyonpocketcalculators.Para4______
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{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Ifyouwanttostayyoungsitdownandhaveagoodthink.Thisisthe researchfindingofateamofJapanesedoctorswhosaythatmostofourbrains arenotgettingenoughexercise--andasaresultweareageingunnecessarily soon.??2.ProfessorTaijuMatsuzawawantedtofindoutwhy otherwisehealthyfarmersinnorthernJapanappearedtobelosingtheirability tothinkandreasonatarelativelyearlyageandhowtheprocessofageing couldbesloweddown.??3.WithateamofcolleaguesatTokyo NationalUniversityhesetaboutmeasuringbrainvolumesofathousandpeople ofdifferentagesandvaryingoccupations.??4.Computer technologyenabledtheresearcherstoobtainprecisemeasurementsofthevolume ofthefrontandsidesectionsofthebrainwhichrelatetointellect智能and emotionanddeterminethehumancharacter.Therearsectionofthebrain whichcontrolsfunctionslikeeatingandbreathingdoesnotcontractwithage andonecancontinuelivingwithoutintellectualoremotionalfaculties. ??5.Contractionoffrontandsideparts--ascellsdieoff--was observedinsomesubjectsintheirthirtiesbutitwasstillnotevidentin somesixtyandseventy-year-olds.??6.Matsuzawaconcludedfrom histeststhatthereisasimpleremedytothecontractionnormallyassociated withage--usingthehead.??7.Thefindingsshowingeneralterms thatcontractionofthebrainbeginssoonerinpeopleinthecountrythaninthe towns.ThoseleastatrisksaysMatuzawaarelawyersfollowedbyuniversity professorsanddoctors.Whitecollarworkersdoingroutineworkingovernment officesarehoweveraslikelytohaveshrinkingbrainsasthefarmworkerbus driverandshopassistant.??8.Matsuzawa’sfindingsshowthat thinkingcanpreventthebrainfromshrinking.Bloodmustcirculateproperly intheheadtosupplythefreshoxygenthebrainceilsneed.Thebestwayto maintaingoodbloodcirculationisthroughusingthebrainhesaysThink hardandengageinconversation.Don’trelyonpocketcalculators.Thefrontandsidesectionsofthebrainrelatesto______.??A.bloodcirculation
Thisisespeciallytrueintoday'sextremely{{U}}harsh{{/U}}economicclimate.
{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
TheBritishpoliticalsystemhas{{U}}evolved{{/U}}overseveralcenturies.
{{*HTML*}}{{B}}第二篇{{/B}} ??DorotheaDixlefthomeatanearly age-ofherownfreewill-tolivewithhergrand-mother.??At fourteenDorotheawasteachingschoolatWorcesterMassachusetts.Ashorttime aftershehadbegunteachingsheestablishedaschoolforyounggirlsinher grandparents’home.StresswasplacedonmoralcharacteratDorothea’sschool whichsheconducteduntilshewasthirty-three.??Shewasforced togiveupteachingathergrandparents’homehoweverwhenshebecameill.A fewyearsofinactivityfollowed.??In1841Dorotheabeganto teachagainacceptingaSundayschoolclassintheEastCambridge Massachusettsjail.Hereshefirstcameuponinsanepeoplelockeduptogether withcriminals.??Inthosedaysinsanepeopleweretreatedeven worsethancriminals.Therewereonly?afewasylums精神病院intheentire country.Thereforejailspoorhousesandhousesofcorrectionwereusedto confinetheinsane.??DorotheaDixmadeacarefulinvestigationof theinhumantreatmentoftheinsane.Itwasconsideredunfeminine不适合女性的fora womantodevoteherselftosuchworkatthistime.Butthisdidnotstop DorotheaDixinhereffortstoprovidepropermedicalcareforthe insane.??Graduallybecauseofherinvestigationsconditions wereimproved.Morethanthirtymentalinstitutionswerefoundedor re-establishedintheUnitedStatedbecauseofherefforts.Dorotheaalso extendedherinvestigationstoEnglandandtootherpartsofEurope.? ?DuringtheCivilWarDorotheaservedassuperintendent管理人ofwomen hospitalnurses?intheUnionarmy.Whenthewarwasovershereturnedto herworkofimprovingconditionsforinsane people.Whichofthefollowingisthebesttitleforthepassage?
{{*HTML*}}? ?阅读下面的短文文章中有5处空白文章后有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以恢复文章原貌 ??IsmokeformyhealthIdeclaredinanewspaperarticle publishedin1979.{{U}}?46?{{/U}}.Ireasonedthatsmokingmademe coughandthuspreventedpneumonia肺炎;smokingmademyheartgofasterand eliminatedtheneedforspecialexercise;smokingrestrainedmyappetiteand keptmetrim.Andthenat51Ihadaheartattack.??Iknewthe riskfactorsforearlyheartattacksincludehypertensiondiabetes糖尿病anda familyhistoryofheartdiseasehighblood-cholesterol胆固醇levelsand smoking.{{U}}?47?{{/U}}.??Strangehowtheevidencethat linkedsmokingtoheartdiseaseappeareduncleartomeandhowthesamedata nowappearoverwhelminglyconvincing.Whystopnow?Smokerswhostopaftertheir firstheartattackhavean80-percentchanceoflivingtenmoreyears-- {{U}}?48?{{/U}}.??AsasmokerIalwaysresentedthe factthatwesmokersreceivedonlyscornfromnon-smokers.Howcouldnon-smokers knowthatsmokingwashadforthehealthiftherewerenosmokerstoproveit? Beingamemberoftheexperimentalgroupratherthanthecontrolgroup deservesacertainmeasureofsocialappreciation.I’vedonemytime.I’mnow readytobeacontrol.Inolongersmokeformyhealth.Myhealthcan’tstand thehelp.??WillImissthelate-nighttripstofindastore that’sstillopenandsellingcigarettes?WillImisssearchingthrough ashtrays烟灰缸tofindthelongestbutt烟蒂thatisstillsmokable?Onlytimewill tell.Notsmokingmaygivemethetimetofindout.??{{U}} ?49?{{/U}}Sure.Hereisallyouhavetodo.Firstexperiencea severecrushingpainunderyourbreastboneasyoufinishacigarette.Nexthave yourselfadmittedtoacoronary-care心脏康复unitandbestrippedofyourclothing andbelongings.Finallyremainintheunitatabsolutebedrestforfourdays whilesmokingisforbidden.Thisbrokemyhabit{{U}}?50 ?{{/U}}??A.Wasiteasytostop???B.ifthey don’ta60percentchance.??C.Seeifitworksfor you.??D.Allthesmokersfindit’shardtostop.? ?E.SinceIamadoctorthisadviceattractedamusedattention.? ?F.ThefirstfourwereinmyfavourbutIchosetosmoke.
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Ithasbeenarguedthataninfantunder threewhoiscaredforoutsidethehomemaysufferbecauseoftheseparation fromhisparents.TheBritishpsychoanalystJohnBowlbymaintainsthat separationfromtheparentsduringthesensitiveattachmentperiodfrombirth tothreemayscarachild’spersonalityandpredisposetoemotionalproblemsin laterlife.SomepeoplehavedrawntheconclusionfromBowlby’sworkthat childrenshouldnotbesubjectedtodaycarebeforetheageofthreebecauseof theparentalseparationitentailsandmanypeopledobelievethis.Butthere arealsoargumentsagainstsuchastrongconclusion.??Firstly anthropologistspointoutthatthesecludedloveaffairbetweenchildrenand parentsfoundinmodernsocietiesdoesnotusuallyexistintraditional societies.ForexamplewesawearlierthatamongtheNgonithefatherand motherofachilddidnotreartheirinfantalone--farfromit.Buttraditional societiesaresodifferentfrommodernsocietiesthatcomparisonsbasedonjust onefactorarehardtointerpret.??Secondlycommonsensetells usthatdaycarewouldnotbesowidespreadtodayifparentscaretakersor pediatriciansfoundthatchildrenhadproblemswithit.ButBowlby’sanalysis raisesthepossibilitythatearlydaycarehasdelayedeffects.Thepossibility thatsuchcaremightleadtosaymorementalillnessorcrime15or20years latercanonlybeexploredbytheuseofstatistics.Statisticalstudiesofthis kindhavenotyetbeencarriedoutandeveniftheyweretheresultswouldbe certaintobecomplicatedandcontroversial.??Thirdlyinthe lastdecadetherehavebeenanumberofcarefulAmericanstudiesofchildrenin daycareandtheyhaveuniformlyreportedthatdaycarehadaneutralof slightlypositiveeffectonchildren’sdevelopment.Butteststhathavehadto beusedtomeasurethisdevelopmentarenotwidelyenoughacceptedtosettlethe issue.ThephrasedaycareinLine8Para.1probablymeans______.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断?? ??Aninternationalteamofresearch scientistshascreatedanewkindofricethatcontainsVitaminA.The researchersusedgeneticengineeringtocreatethenewrice.Geneticengineering isthetechnologyofchangingthegenesoflivingthings.Theresearcherssay thericecouldhelpmillionsofpeoplewhodonotgetenoughVitaminAinthe foodtheyeat.ThefindingswerepublishedinSciencemagazine.? ?VitaminAisnecessaryforthebody’snaturaldefensesystemagainst disease.VitaminAisneededtohelppreventskinandothertissuesfromdrying out.Italsoproducesalight-sensitivesubstanceintheeyes.? ?PeoplewhodonotgetenoughVitaminAcannotseewellinthedark.They maydevelopaconditionthatdriestheeyes.Theconditioncanresultin infectionsthatleadtoblindness.??AlackofVitaminAisa majorcauseofblindnessamongchildren.Healthexpertsestimatethat124 millionchildrenaroundtheworlddonoteatenoughfoodswithVitamin A.??VitaminAisfoundinfishliveroilandintheyellowpart ofeggs.Vegetablessuchascarrotsandsweetpotatoescontainbetacarotenea substancethatthebodychangesintoVitaminA.??Publichealth campaignstoprovideVitaminAtothosewhoneedithaveprovedcostly.Andthey arenotalwayseffective.Thathasledresearcherstotrytocreatefoodswith thevitamin.??Riceisoneofthemostcommoncropsgrown worldwide.HowevernormalricelacksVitaminA.Researchersatalaboratoryin Switzerlandfoundawaytochangethegeneticmaterialofrice.Theyaddedthree genestotherice.Thegenesproducebetacarotenethechemicalthatourbodies changeintoVitaminA.??Thenewricehasagoldenyellowcolor. Theresearcherssay200gramsofthericehaveenoughbetacarotenetoprovide thenecessaryamountofVitaminA.??BiologistMaryLouGuerinot ofDartmouthCollegewroteacommentarypublishedwiththereportinscience magazine.Shesaidthericeisanexcellentexampleofthegoodthingsthatcan bedonewithgeneticengineering.Howevercriticsofgeneticengineeringargue thatchangingplantgenescouldincreaseriskstohumanhealthorthe environment.ThemoreVitaminAwehavethemorehealthywewillbe.
Theagendawillbechoosenthroughan{{U}}ongoing{{/U}}processofconsultationswithofficialsofgovernmentsandinternationalorganizations.
{{*HTML*}}{{B}}第二篇{{/B}} ??DorotheaDixlefthomeatanearly age-ofherownfreewill-tolivewithhergrand-mother.??At fourteenDorotheawasteachingschoolatWorcesterMassachusetts.Ashorttime aftershehadbegunteachingsheestablishedaschoolforyounggirlsinher grandparents’home.StresswasplacedonmoralcharacteratDorothea’sschool whichsheconducteduntilshewasthirty-three.??Shewasforced togiveupteachingathergrandparents’homehoweverwhenshebecameill.A fewyearsofinactivityfollowed.??In1841Dorotheabeganto teachagainacceptingaSundayschoolclassintheEastCambridge Massachusettsjail.Hereshefirstcameuponinsanepeoplelockeduptogether withcriminals.??Inthosedaysinsanepeopleweretreatedeven worsethancriminals.Therewereonly?afewasylums精神病院intheentire country.Thereforejailspoorhousesandhousesofcorrectionwereusedto confinetheinsane.??DorotheaDixmadeacarefulinvestigationof theinhumantreatmentoftheinsane.Itwasconsideredunfeminine不适合女性的fora womantodevoteherselftosuchworkatthistime.Butthisdidnotstop DorotheaDixinhereffortstoprovidepropermedicalcareforthe insane.??Graduallybecauseofherinvestigationsconditions wereimproved.Morethanthirtymentalinstitutionswerefoundedor re-establishedintheUnitedStatedbecauseofherefforts.Dorotheaalso extendedherinvestigationstoEnglandandtootherpartsofEurope.? ?DuringtheCivilWarDorotheaservedassuperintendent管理人ofwomen hospitalnurses?intheUnionarmy.Whenthewarwasovershereturnedto herworkofimprovingconditionsforinsane people.TheauthorimpliesthatDorotheaDix’sworkwiththeinsanewasinterruptedbecauseof______.
{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Ifyouwanttostayyoungsitdownandhaveagoodthink.Thisisthe researchfindingofateamofJapanesedoctorswhosaythatmostofourbrains arenotgettingenoughexercise--andasaresultweareageingunnecessarily soon.??2.ProfessorTaijuMatsuzawawantedtofindoutwhy otherwisehealthyfarmersinnorthernJapanappearedtobelosingtheirability tothinkandreasonatarelativelyearlyageandhowtheprocessofageing couldbesloweddown.??3.WithateamofcolleaguesatTokyo NationalUniversityhesetaboutmeasuringbrainvolumesofathousandpeople ofdifferentagesandvaryingoccupations.??4.Computer technologyenabledtheresearcherstoobtainprecisemeasurementsofthevolume ofthefrontandsidesectionsofthebrainwhichrelatetointellect智能and emotionanddeterminethehumancharacter.Therearsectionofthebrain whichcontrolsfunctionslikeeatingandbreathingdoesnotcontractwithage andonecancontinuelivingwithoutintellectualoremotionalfaculties. ??5.Contractionoffrontandsideparts--ascellsdieoff--was observedinsomesubjectsintheirthirtiesbutitwasstillnotevidentin somesixtyandseventy-year-olds.??6.Matsuzawaconcludedfrom histeststhatthereisasimpleremedytothecontractionnormallyassociated withage--usingthehead.??7.Thefindingsshowingeneralterms thatcontractionofthebrainbeginssoonerinpeopleinthecountrythaninthe towns.ThoseleastatrisksaysMatuzawaarelawyersfollowedbyuniversity professorsanddoctors.Whitecollarworkersdoingroutineworkingovernment officesarehoweveraslikelytohaveshrinkingbrainsasthefarmworkerbus driverandshopassistant.??8.Matsuzawa’sfindingsshowthat thinkingcanpreventthebrainfromshrinking.Bloodmustcirculateproperly intheheadtosupplythefreshoxygenthebrainceilsneed.Thebestwayto maintaingoodbloodcirculationisthroughusingthebrainhesaysThink hardandengageinconversation.Don’trelyonpocketcalculators.Matsuzawawantedtofindouttheprocessofageingcouldbe______.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断?? ??Aninternationalteamofresearch scientistshascreatedanewkindofricethatcontainsVitaminA.The researchersusedgeneticengineeringtocreatethenewrice.Geneticengineering isthetechnologyofchangingthegenesoflivingthings.Theresearcherssay thericecouldhelpmillionsofpeoplewhodonotgetenoughVitaminAinthe foodtheyeat.ThefindingswerepublishedinSciencemagazine.? ?VitaminAisnecessaryforthebody’snaturaldefensesystemagainst disease.VitaminAisneededtohelppreventskinandothertissuesfromdrying out.Italsoproducesalight-sensitivesubstanceintheeyes.? ?PeoplewhodonotgetenoughVitaminAcannotseewellinthedark.They maydevelopaconditionthatdriestheeyes.Theconditioncanresultin infectionsthatleadtoblindness.??AlackofVitaminAisa majorcauseofblindnessamongchildren.Healthexpertsestimatethat124 millionchildrenaroundtheworlddonoteatenoughfoodswithVitamin A.??VitaminAisfoundinfishliveroilandintheyellowpart ofeggs.Vegetablessuchascarrotsandsweetpotatoescontainbetacarotenea substancethatthebodychangesintoVitaminA.??Publichealth campaignstoprovideVitaminAtothosewhoneedithaveprovedcostly.Andthey arenotalwayseffective.Thathasledresearcherstotrytocreatefoodswith thevitamin.??Riceisoneofthemostcommoncropsgrown worldwide.HowevernormalricelacksVitaminA.Researchersatalaboratoryin Switzerlandfoundawaytochangethegeneticmaterialofrice.Theyaddedthree genestotherice.Thegenesproducebetacarotenethechemicalthatourbodies changeintoVitaminA.??Thenewricehasagoldenyellowcolor. Theresearcherssay200gramsofthericehaveenoughbetacarotenetoprovide thenecessaryamountofVitaminA.??BiologistMaryLouGuerinot ofDartmouthCollegewroteacommentarypublishedwiththereportinscience magazine.Shesaidthericeisanexcellentexampleofthegoodthingsthatcan bedonewithgeneticengineering.Howevercriticsofgeneticengineeringargue thatchangingplantgenescouldincreaseriskstohumanhealthorthe environment.VitaminAcanbefoundinfishandeggs.
Thelibraryalreadysubscribestoatleastoneofthematerialsrelated{{U}}periodicals{{/U}}publishedbythem.
{{*HTML*}}{{B}}第三篇{{/B}} ??Manysciencereportsdiscussmedical studiesthattesttheeffectofanewdrug.Usuallyalargenumberofpeopleis dividedintotwogroups.Eachgrouptakesadifferentsubstance.Butnoone knowswhichgroupisgettingwhichsubstance.Onegrouptakesthemedicinebeing tested.Anothergrouptakeswhatwecallaninactivesubstance.Medical researcherscallthissubstanceaplacebo.ThewordplaceboisLatinforI shallplease.Placebopills宽心丸usuallyaremadeofsugar.? ?Usingplacebostotestdrugssometimeshasasurprisingresult. Researcherssaypeopletakingtheplacebooftenreportimprovementsintheir health.Thisisknownastheplaceboeffect--painthatiseasedorstoppedby aninactivesubstance.Insuchtestingthedrugmustperformbetterthanthe placebotoprovethatitiseffective.??Doctorshavereported thattheplaceboeffectcanbeusedintreatment.Forexample?adoctor tellsapatientthatanewdrugwillstopthepaininhisleg.Thepillisonly sugar.Butthepatientdoesnotknowthat.Hetakesthepillandsayshispain isgone.??Scientistsarebeginningtodiscoversomephysical reasonsforthisreactioninsomepeople.Theyarelearningthatmuchofwhat peoplebelievetobetruecomesfromwhatthebrainexpectsisgoingtohappen. Ifthebrainbelievesadrugwilleasepainthebrainmaybeginphysical changesinthebodythatcancausetheexpectedeffect.Arecentexaminationof studiesondrugsfordepressionfoundthatplaceboseasedthedepressionabout aswellastheactivedrugs.??Otherstudieshaveexploredthe powerofplacebos.AstudyinJapaninvolvedthirteenpeoplewhoreactedto thepoisonivy常青藤plant.Poison-ivycausesreditchysores伤痕onsomepeople whotouchit.Eachpersonwasrubbedononearmwithaharmlessleafbutwas tolditwaspoisonivy.Eachpersonwasthentouchedontheotherarmwith poisonivybutwastolditwasaharmlessleaf.Allthirteenpeopledevelopeda reactiononthearmwheretheharmlessleaftouchedtheirskin.Onlytworeacted tothepoisonivyleaves.??Doctorsandscientistsworrythatthe useofplacebosmaynotalwaysbeharmless.Theysaypeoplecanbecomevictims offalsedoctorsandotherswhouseplacebostoclaimtheycancure disease.Placebopillsusuallyaremadeof______.
{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
{{*HTML*}}? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Ifyouwanttostayyoungsitdownandhaveagoodthink.Thisisthe researchfindingofateamofJapanesedoctorswhosaythatmostofourbrains arenotgettingenoughexercise--andasaresultweareageingunnecessarily soon.??2.ProfessorTaijuMatsuzawawantedtofindoutwhy otherwisehealthyfarmersinnorthernJapanappearedtobelosingtheirability tothinkandreasonatarelativelyearlyageandhowtheprocessofageing couldbesloweddown.??3.WithateamofcolleaguesatTokyo NationalUniversityhesetaboutmeasuringbrainvolumesofathousandpeople ofdifferentagesandvaryingoccupations.??4.Computer technologyenabledtheresearcherstoobtainprecisemeasurementsofthevolume ofthefrontandsidesectionsofthebrainwhichrelatetointellect智能and emotionanddeterminethehumancharacter.Therearsectionofthebrain whichcontrolsfunctionslikeeatingandbreathingdoesnotcontractwithage andonecancontinuelivingwithoutintellectualoremotionalfaculties. ??5.Contractionoffrontandsideparts--ascellsdieoff--was observedinsomesubjectsintheirthirtiesbutitwasstillnotevidentin somesixtyandseventy-year-olds.??6.Matsuzawaconcludedfrom histeststhatthereisasimpleremedytothecontractionnormallyassociated withage--usingthehead.??7.Thefindingsshowingeneralterms thatcontractionofthebrainbeginssoonerinpeopleinthecountrythaninthe towns.ThoseleastatrisksaysMatuzawaarelawyersfollowedbyuniversity professorsanddoctors.Whitecollarworkersdoingroutineworkingovernment officesarehoweveraslikelytohaveshrinkingbrainsasthefarmworkerbus driverandshopassistant.??8.Matsuzawa’sfindingsshowthat thinkingcanpreventthebrainfromshrinking.Bloodmustcirculateproperly intheheadtosupplythefreshoxygenthebrainceilsneed.Thebestwayto maintaingoodbloodcirculationisthroughusingthebrainhesaysThink hardandengageinconversation.Don’trelyonpocketcalculators.Para8______
{{U}}Launched{{/U}}intheautumnof1976inLondonandnowpublishedtentimesayear.
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Ithasbeenarguedthataninfantunder threewhoiscaredforoutsidethehomemaysufferbecauseoftheseparation fromhisparents.TheBritishpsychoanalystJohnBowlbymaintainsthat separationfromtheparentsduringthesensitiveattachmentperiodfrombirth tothreemayscarachild’spersonalityandpredisposetoemotionalproblemsin laterlife.SomepeoplehavedrawntheconclusionfromBowlby’sworkthat childrenshouldnotbesubjectedtodaycarebeforetheageofthreebecauseof theparentalseparationitentailsandmanypeopledobelievethis.Butthere arealsoargumentsagainstsuchastrongconclusion.??Firstly anthropologistspointoutthatthesecludedloveaffairbetweenchildrenand parentsfoundinmodernsocietiesdoesnotusuallyexistintraditional societies.ForexamplewesawearlierthatamongtheNgonithefatherand motherofachilddidnotreartheirinfantalone--farfromit.Buttraditional societiesaresodifferentfrommodernsocietiesthatcomparisonsbasedonjust onefactorarehardtointerpret.??Secondlycommonsensetells usthatdaycarewouldnotbesowidespreadtodayifparentscaretakersor pediatriciansfoundthatchildrenhadproblemswithit.ButBowlby’sanalysis raisesthepossibilitythatearlydaycarehasdelayedeffects.Thepossibility thatsuchcaremightleadtosaymorementalillnessorcrime15or20years latercanonlybeexploredbytheuseofstatistics.Statisticalstudiesofthis kindhavenotyetbeencarriedoutandeveniftheyweretheresultswouldbe certaintobecomplicatedandcontroversial.??Thirdlyinthe lastdecadetherehavebeenanumberofcarefulAmericanstudiesofchildrenin daycareandtheyhaveuniformlyreportedthatdaycarehadaneutralof slightlypositiveeffectonchildren’sdevelopment.Butteststhathavehadto beusedtomeasurethisdevelopmentarenotwidelyenoughacceptedtosettlethe issue.Anthropologistsbelievedifferencesbetweentraditionalandmodernsocietiesarethatintheoldsociety______.
{{*HTML*}}{{B}}第三篇{{/B}} ??Manysciencereportsdiscussmedical studiesthattesttheeffectofanewdrug.Usuallyalargenumberofpeopleis dividedintotwogroups.Eachgrouptakesadifferentsubstance.Butnoone knowswhichgroupisgettingwhichsubstance.Onegrouptakesthemedicinebeing tested.Anothergrouptakeswhatwecallaninactivesubstance.Medical researcherscallthissubstanceaplacebo.ThewordplaceboisLatinforI shallplease.Placebopills宽心丸usuallyaremadeofsugar.? ?Usingplacebostotestdrugssometimeshasasurprisingresult. Researcherssaypeopletakingtheplacebooftenreportimprovementsintheir health.Thisisknownastheplaceboeffect--painthatiseasedorstoppedby aninactivesubstance.Insuchtestingthedrugmustperformbetterthanthe placebotoprovethatitiseffective.??Doctorshavereported thattheplaceboeffectcanbeusedintreatment.Forexample?adoctor tellsapatientthatanewdrugwillstopthepaininhisleg.Thepillisonly sugar.Butthepatientdoesnotknowthat.Hetakesthepillandsayshispain isgone.??Scientistsarebeginningtodiscoversomephysical reasonsforthisreactioninsomepeople.Theyarelearningthatmuchofwhat peoplebelievetobetruecomesfromwhatthebrainexpectsisgoingtohappen. Ifthebrainbelievesadrugwilleasepainthebrainmaybeginphysical changesinthebodythatcancausetheexpectedeffect.Arecentexaminationof studiesondrugsfordepressionfoundthatplaceboseasedthedepressionabout aswellastheactivedrugs.??Otherstudieshaveexploredthe powerofplacebos.AstudyinJapaninvolvedthirteenpeoplewhoreactedto thepoisonivy常青藤plant.Poison-ivycausesreditchysores伤痕onsomepeople whotouchit.Eachpersonwasrubbedononearmwithaharmlessleafbutwas tolditwaspoisonivy.Eachpersonwasthentouchedontheotherarmwith poisonivybutwastolditwasaharmlessleaf.Allthirteenpeopledevelopeda reactiononthearmwheretheharmlessleaftouchedtheirskin.Onlytworeacted tothepoisonivyleaves.??Doctorsandscientistsworrythatthe useofplacebosmaynotalwaysbeharmless.Theysaypeoplecanbecomevictims offalsedoctorsandotherswhouseplacebostoclaimtheycancure disease.HowmanypeopledevelopedareactiononbotharmsinthestudyinJapan?
{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
{{*HTML*}}? ?阅读下面的短文文章中有5处空白文章后有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以恢复文章原貌 ??IsmokeformyhealthIdeclaredinanewspaperarticle publishedin1979.{{U}}?46?{{/U}}.Ireasonedthatsmokingmademe coughandthuspreventedpneumonia肺炎;smokingmademyheartgofasterand eliminatedtheneedforspecialexercise;smokingrestrainedmyappetiteand keptmetrim.Andthenat51Ihadaheartattack.??Iknewthe riskfactorsforearlyheartattacksincludehypertensiondiabetes糖尿病anda familyhistoryofheartdiseasehighblood-cholesterol胆固醇levelsand smoking.{{U}}?47?{{/U}}.??Strangehowtheevidencethat linkedsmokingtoheartdiseaseappeareduncleartomeandhowthesamedata nowappearoverwhelminglyconvincing.Whystopnow?Smokerswhostopaftertheir firstheartattackhavean80-percentchanceoflivingtenmoreyears-- {{U}}?48?{{/U}}.??AsasmokerIalwaysresentedthe factthatwesmokersreceivedonlyscornfromnon-smokers.Howcouldnon-smokers knowthatsmokingwashadforthehealthiftherewerenosmokerstoproveit? Beingamemberoftheexperimentalgroupratherthanthecontrolgroup deservesacertainmeasureofsocialappreciation.I’vedonemytime.I’mnow readytobeacontrol.Inolongersmokeformyhealth.Myhealthcan’tstand thehelp.??WillImissthelate-nighttripstofindastore that’sstillopenandsellingcigarettes?WillImisssearchingthrough ashtrays烟灰缸tofindthelongestbutt烟蒂thatisstillsmokable?Onlytimewill tell.Notsmokingmaygivemethetimetofindout.??{{U}} ?49?{{/U}}Sure.Hereisallyouhavetodo.Firstexperiencea severecrushingpainunderyourbreastboneasyoufinishacigarette.Nexthave yourselfadmittedtoacoronary-care心脏康复unitandbestrippedofyourclothing andbelongings.Finallyremainintheunitatabsolutebedrestforfourdays whilesmokingisforbidden.Thisbrokemyhabit{{U}}?50 ?{{/U}}??A.Wasiteasytostop???B.ifthey don’ta60percentchance.??C.Seeifitworksfor you.??D.Allthesmokersfindit’shardtostop.? ?E.SinceIamadoctorthisadviceattractedamusedattention.? ?F.ThefirstfourwereinmyfavourbutIchosetosmoke.{{*HTML*}}
{{*HTML*}} ???Manymillionsofpeoplehave highbloodpressurehypertension高血压.What’ssofrighteningaboutthisso calledsilentkilleristhatitoftendoesnotproduce{{U}}?51 ?{{/U}}foryearssecretlydamagingarteriesandorgansthroughoutthebody untiliterupts爆发intheformofstrokeheartattackcongestiveheart failure充血性尽力衰竭orkidneydisease.{{U}}?52?{{/U}}leftuntreated evenmildhypertensioncanreducethelifeexpectancyofa35-year-old {{U}}?53?{{/U}}severalyears.Readingsof140to159over90to99 aremildlyhigh;about120/80isnormal.???That’swhy highbloodpressureiscommonlytreatedwithanti-hypertensivedrugs.But studies{{U}}?54?{{/U}}thatinsomepeopleanincreaseincalcium钙 consumptioncanhelp{{U}}?55?{{/U}}bloodpressurewithout medication药物治疗???Calciumalsoseemstohelpprevent highbloodpressure.{{U}}?56?{{/U}}theresultsof13-yearsurvey {{U}}?57?{{/U}}bytheU.S.NationalCenterforHealthStatistics JamesH.Dwyerassociateprofessorof{{U}}?58?{{/U}}medicineatthe UniversityofSouthernCaliforniaSchoolofMedicinefoundthatpeoplewho consumed1300milligramsofcalciumadaywere12percent{{U}}?59 ?{{/U}}likelytodevelophypertensionthanthose{{U}}?60?{{/U}} only300mg.aday.Inpeopleunderage40riskwasreducedbyupto25 percent.???Soondoctorsmay{{U}}?61?{{/U}}some hypertensionpatientstoincreasetheircalciumintake{{U}}?62?{{/U}} thewaytheynowadvisesodium钠restriction.It’s{{U}}?63?{{/U}}to addfoodorsupplementsthantogoonalow-sodiumdiet{{U}}?64 ?{{/U}}Dr.DavidMcCarronprofessorofmedicineatOregonHealthSciences University.Ourstudiesshowthatpeoplewhotrythelow-sodium{{U}}?65 ?{{/U}}don’tstaywithitverylong.
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