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　　Inrecentyearstherehasbeenasteadyattackonsaltfromthedoctors:saltisbadforyou—regardlessofyourhealth.Politiciansalsogotaboard.“Thereisadirectrelationship”USCongressmanNealSmithsaid“betweentheamountofsodium(钠)apersonconsumesandheartdiseasecirculatory(循环的)disordersstrokeandevenearlydeath.”

　　Frighteningiftrue!Butmanydoctorsandmedicalresearchersarenowbeginningtofeelthesaltscarehasgonetoofar.“Alltheseremarksandcryaboutsaltisunnecessary”Dr.Dustaninsists.“Formostofusitprobablydoesnotmakemuchdifferencehowmuchsaltweeat.”Dustan’smostrecentshort-termstudyof150peopleshowedthatthosewithnormalbloodpressureexperiencednochangeatallwhenplacedonanextremelylow-saltdietorlaterwhensaltwasreintroduced.Ofthehypertensive(高血压的)patientshoweverhalfofthoseonthelow-saltdietdidexperienceadropinbloodpressurewhichreturnedtopreviouslevelwhensaltwasreintroduced.

　　“Anadequatetosomewhatexcessive(过度的)saltintakehasprobablysavedmanymorelivesthanithascostinthegeneralpopulation”saidDr.JohnHLaragh.“Soanopinionthatthewholepopulationshouldavoidsaltmakesnosense.”

　　Medicalexpertsagreethateveryoneshouldpracticereasonable“moderation”(节制)insaltconsumption.Fortheaveragepersonamoderateamountmightrunfromfourtotengramsadayorroughly1/2to1/3teaspoons.Onetotwogramsofsaltwouldcomefromthenaturalsodiuminfood.Therestwouldbeaddedinprocessingpreparationoratthetable.

　　“Naisnotyourenemy”saysComek’sDr.Laragh.“SaltistheNo.1naturalcomponentofallhumantissueandtheideathatyoudonotneeditiswrong.Unlessyourdoctorhasproventhatyouhaveasalt-relatedhealthproblemthereisnoreasontogiveitup.”

　　1.Whyissaltattackedbydoctorsandpoliticians?

　　A.It’sunnecessary.

　　B.Itdoesnogoodtohumanhealth..

　　C.Itishatedbymostpeople.

　　D.Itwillsurelyleadtoheartdiseaseandcirculatorydisorders.

　　2.FromDr.Dustan’sstudyinParagraph2wecaninferthat_____.

　　A．alow-saltdietmaybegoodtosomepatients

　　B．theamountofsaltintakehasnothingtodowithone’sbloodpressure

　　C．thereductionofs

1回答

2020-08-21 19:09

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普建涛

　　1.B

　　2.A

　　3.B

　　4.C

　　分析：

　　盐的摄入对身体健康的有影响？科学家和一些专家就此进行了研究，发现这是耸人听闻的，人食用适量的盐是绝无影响的。

　　1.判断推理题。由文章第一段可知医生反对食用盐，因为盐对健康有害，一些政治家也支持这个观点，美国国会议员尼尔史密斯说人体所消耗的盐的量和心脏病，循环障碍，中风甚至早逝有着直接的联系。因此选B。

　　2.判断推理题。由“Ofthehypertensivepatientshoweverhalfofthoseonthelow-saltdietdidexperienceadropinbloodpressurewhichreturnedtopreviouslevelwhensaltwasreintroduced.”可知，然而有一半的高血压患者在食用了低盐食物后，血压有了下降的趋势，返回到了原先的水准。因此少量地消耗盐对于有些患者是有利的。故选A。

　　3.3】判断推理题。由第三段“Soanopinionthatthewholepopulationshouldavoidsaltmakesnosense.”可知，让全人类对于盐避而远之是没啥意义的。故B符合题意。

　　4.4】细节理解题。根据文章最后一段，“Medicalexpertsagreethateveryoneshouldpracticereasonable“moderation”insaltconsumption.Fortheaveragepersonamoderateamountmightrunfromfourtotengramsadayorroughly1/2to1/3teaspoons.”可知，正常人每天消耗4-10克食盐最佳，大约为1/2到1/3汤匙。故选C。

　　考点：

　　社普类短文阅读。

2020-08-21 19:11:29

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