预览加载中,请您耐心等待几秒...
1/10
2/10
3/10
4/10
5/10
6/10
7/10
8/10
9/10
10/10

亲,该文档总共22页,到这已经超出免费预览范围,如果喜欢就直接下载吧~

如果您无法下载资料,请参考说明:

1、部分资料下载需要金币,请确保您的账户上有足够的金币

2、已购买过的文档,再次下载不重复扣费

3、资料包下载后请先用软件解压,在使用对应软件打开

职称英语卫生类B阅读理解练习 2017职称英语卫生类B阅读理解练习 2017年职称英语不久后就要开考了,为了帮助大家备考,小编整理了一些卫生了B级阅读理解练习,欢迎阅读! FindYourselfPackingIton?BlameFriends Obesitycallspreadfrompersontoperson,muchlikeavirus,researchersarereportingtoday.Whenonepersongainsweight,closefriendstendtogainweight,too. Theirstudy,publishedinTheNewEnglandJournalofMedicine,involvedadetailedanalysisofalargesocialnetworkof12,067peoplewhowerebeencloselyfollowedfor32years,from1971to2003. Theinvestigatorsknewwhowerefriendswithwhomaswellaswhowasaspouseorsiblingorneighbor,andtheyknewhowmucheachpersonweighedatvarioustimesoverthreedecades.Thatletthemreconstructwhathappenedovertheyearsasinpidualsbecameobese.Didtheirfriendsalsobecomeobese?Didfamilymembers?Orneighbors? Theanswer,theresearchersreport,wasthatpeopleweremostlikelytobecomeobesewhenafriendbecameobese.Thatincreasedaperson'schancesofbecomingobeseby57percent.Therewasnoeffectwhenaneighborgainedorlostweight,however,andfamilymembershadlessinfluencethanfriends. Itdidnotevenmatterifthefriendwashundredsofmilesaway,theinfluenceremained.Andthegreatestinfluenceofallwasbetweenclosemutualfriends.There,ifonebecameobese.theotherhada171percentincreasedchanceofbecomingobese.too. Thesameeffectseemedtooccurforweightloss,theinvestigatorssay.Butsincemostpeopleweregaining,notlosing,overthe32years,meresultwas,onaverage,thatpeoplegrewfatter. Dr.NicholasA.Christakis,aphysicianandprofessorofmedicalsociologyatHarvardMedicalSchoolandaprincipalinvestigatorinthenewstudy,saidoneexplanationwasthatfriendsaffectedeachothers’perceptionoffatness.Whenaclosefriendbecomesobese,obesitymaynotlooksobad. "Youchangeyourideaofwhatisanacceptablebodytypebylookingatthepeoplearoundyou."Dr.Christakissaid. TheinvestigatorssaytheirfindingscanhelpexplainwhyAmericanshavebecomefatterinrecentyears—eachpersonwhobecameobesewaslikelytodragalongsomefriends. Theiranalysiswasunique,Dr.Christakissaid,becauseitmovedbeyondasimpleanalysisofonepersonandhisorhersocialcontactsandinsteadexaminedallentiresocialnetworkalo