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1、2019年高考英语大一轮复习Unit1Livingwell课时作业新人教版选修6Ⅰ.阅读理解A(xx·合肥模拟)Inthequestforbetterhealth,manypeopleturntodoctors,self-helpbooksorherbalsupplements.Buttheyoverlookapowerfulweaponthatcouldhelpthemfightillnessanddepression,speedrecovery,slowagingandprolonglife:theirfriends.Re
2、searchersareonlynowstartingtopayattentiontotheimportanceoffriendshipandsocialnetworksinoverallhealth.A10-yearAustralianstudyfoundthatolderpeoplewithalargecircleoffriendswere22percentlesslikelytodieduringthestudyperiodthanthosewithfewerfriends.Alargexxstudyshowedanin
3、creaseofnearly60percentintheriskforobesityamongpeoplewhosefriendsgainedweight.Andlastyear,Harvardresearchersreportedthatstrongsocialtiescouldpromotebrainhealthasweage.“Ingeneral,theroleoffriendshipinourlivesisn’twellappreciated,”saidRebeccaG.Adams,aprofessorofsociol
4、ogyattheUniversityofNorthCarolina,Greensboro.“Therearealotofthingsonfamiliesandmarriage,butverylittleonfriendship.Itbafflesme.Friendshiphasabiggerimpactonourpsychologicalwell-beingthanfamilyrelationships.”BellaDePaulo,avisitingpsychologyprofessorattheUniversityofCal
5、ifornia,SantaBarbara,whoseworkfocusesonsinglepeopleandfriendships,notesthatinmanystudies,friendshiphasanevengreatereffectonhealththanaspouseorafamilymember.Itisn’tentirelyclearwhyfriendshiphassuchabigeffect.Itmaybebecausepeoplewithstrongsocialtiesalsohavebetteracces
6、stohealthservicesandcare.Beyondthat,however,friendshipclearlyhasaprofoundpsychologicaleffect.Peoplewithstrongfriendshipsarelesslikelythanotherstogetcolds,perhapsbecausetheyhavelowerstresslevels.Lastyear,researchersstudied34studentsattheUniversityofVirginia,takingthe
7、mtothebaseofasteephillandfittingthemwithaweightedbackpack.Theywerethenaskedtoestimatethesteepnessofthehill.Someparticipantsstoodnexttofriendsduringtheexercise,whileotherswerealone.Thestudentswhostoodwithfriendsgavelowerestimatesofthesteepnessofthehill.Andthelongerth
8、efriendshadknowneachother,thelesssteepthehillappeared.“Peoplewithstrongerfriendshipnetworksfeellikethereissomeonetheycanturnto,”saidKarenA
