science can't explain the power of pets, but many studies have shown that 阅读理解答案

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1、Sciencecan’texplainthepowerofpets,butmanystudieshaveshownthat阅读理解答案　　Sciencecan’texplainthepowerofpets,butmanystudieshaveshownthatthecompanyofpetscanhelplowerbloodpressure(血压)andraisechancesofrecoveringfromaheartattack,reducelonelinessandspreadall-roundgoodcheer.　　Anyownerwilltellyouhowmuchjoyape

2、tbrings.Forsome,ananimalprovidesmorecomfortthanahusband/wife.A2002studybyKarenAllenoftheStateUniversityofNewYorkmeasuredstress(紧张)levelsandbloodpressureinpeople-halfofthempetowners–whiletheyperformed5minutesofmentalarithmetic(算术)orheldahandinicewater.Subjectscompletedthetasksalone,withahusband/wi

3、fe,aclosefriendorwithapet.Peoplewithpetsdiditbest.Thosetestedwiththeiranimalfriendshadsmallerchangeinbloodpressureandreturnedmostquicklytobaselineheartrates.Withpetsintheroom,peoplealsomadefewermathmistakesthanwhendoinginfrontofothercompanions.Itseemspeoplefeelmorerelaxed(放松)aroundpets,saysAllen,

4、whothinksitmaybebecausepetsdon’tjudge.　　Astudyreportedlastfallsuggeststhathavingapetdognotonlyraisesyourspiritsbutmayalsohaveaneffectonyoureatinghabits.ResearchersatNorthwesternMemorialHospitalspentayearstudying36fatpeopleandtheirequallyfatdogsondiet-and-exerciseprograms;aseparategroupof56peoplew

5、ithoutpetswereputonadietprogram.Onaverage,peoplelostaboutI1pounds,or5%oftheirbodyweight.Theirdogsdidevenbetter,losinganaverageof12pounds,morethan15%oftheirbodyweight.Dogownersdidn’tloseanymoreweightthanthosewithoutdogsbut,sayresearchers,gotmoreexerciseoverall-mostlywiththeirdogs-andfounditworthdo

6、ing.　　67．Whatdoesthetextmainlydiscuss?　　A．Whatpetsbringtotheirowners.B．Howpetshelppeoplecalmdown.　　C．People’sopinionsofkeepingpets.D．Pet’svalueinmedicalresearch.　　68．Welearnfromthetextthatapersonwithheartdiseasehasabetterchanceofgettingwellif　　A．hehasapetcompanionB．hehaslessstressofwork　　C．heofte

7、ndoesmentalarithmeticD．heistakencareofbyhisfamily　　69．AccordingtoAllen,whydidthepeopledobetterwithpetsaroundwhenfacingstressfultasks?　　A．Theyhavelowerbloodpressure.B．Theybecomemorepatient.　　C．Theyarelessnervous.D．Theya