高三复习阅读题库2 医学类.doc

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1、高三复习之阅读题库（二）知识梳理　教学重、难点作业完成情况典题探究医学Forthousandsofyearshumanshaveusedherbs,roots,andotherthingsfromnaturetocuredisease.Scientistslookingfornewcuresoftenvisittraditionalhealers.Theyfindoutwhatplantsareusedinhealing.Thentheylookatwhattheplantcontains.Theyfindtheactiveingredient,w

2、hichisthechemicalintheplantthatworkstoheal.Manyofthedrugsweuse,includingaspirin,havecomefromthesenaturalmedicines.Inrecentyears,manypeopleintheUShavetakingwhatarelegallyknownasdietarysupplements（补药）.Theymaybevitaminsorminerals.Theymaybeherbsthathelpwithhealthproblems,suchasdep

3、ression.Someofthemareteas.Othersarecapsulesortablets.Theyaresoldinnaturalfoodstores,drugstores,andgroceries.Mostpeoplethinkthatbecausetheseproductsarenaturaltheyarealsosafe.Thisisnotalwaystrue.Therearemanyplantsthatarepoisonous.Thereareothersthathave7耐心细心责任心badsideeffects.TheN

4、ewEnglandJournalofMedicinepublishesmedicalresearch.Arecenteditioncalledforthegovernmenttoregulatedietarysupplements.SeveraldoctorswrotetotheJournalandtoldofbadexperiencespeoplehavehadwithdietarysupplements.Dietarysupplementsaren'ttestedinthesamewayasdrugs.Thereisnotalwaysproof

5、thatthesupplementreallydoeswhatitissupposedtodo.Thereisalsoaproblemwithpurityofthesupplements.Supplementshavebeenfoundtocontainthingsthatarebadforthebody.Forexample,theCaliforniaDepartmentofHealthfoundthatof260herbsgrowninChina,onethirdcontainedheavymetals.Thesearemineralssuch

6、asleadandmercury（水银）.Theyareverypoisonous,evenintinyamounts.1.Thescientistsstudythecuresfromthehealersinorderto_______.A.findoutiftheplantispoisonousB.findoutwhatintheplantworkstocurediseaseC.lookforaspirinintheplantD.makesurethattheplantcancuredisease2.Wecaninferfromthesecond

7、paragraphthat_______.A.itislegaltotakedietarysupplementintheUSAB.supplementsaresafebecausetheyarenaturalmedicines.C.allthesupplementsarepoisonousD.noneofthesupplementshasbadsideeffects3.Theunderlinedword“regulate”inthethirdparagraphmeans_______.A.punishB.removeC.controlD.manag

8、e4.Theproblemwithdietarysupplementmaybeinthat_______.A.thesup