2020高考英语选修6培优大一轮Unit 3　新题培优练

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(30) 建议用时：分钟 Ⅰ 阅读理解 A (2019·)Ifyourfriendsarehappy,itturnsoutyou’remorelikelytobe 福州适应性练习 happytoo.Ifyourfriendsareoverweight,thattooupsthechancesyou’llgainweight. Thoseeffectshavebeenshowninstudies.Andnowresearchershaveidentifiedanother seeminglycontagiousquality:exercise. Theresearchersanalyzedtherunningactivityofmorethanamillionpeople worldwidewhousedanexercisetrackingdevice()forfiveyears.Andtheyused 装置 weatherpatternsasawaytorandomlyexaminedifferentpartsofthatglobalnetwork. CitieshavedifferentweatherpatternsSinanAral,acomputationalsocialscientist “，” atMITsays.Thisexperimentallowedthemtoask:DoesarainydayinNewYorkaffect runninginSanDiego?IftheweatherinNewYorkcauseschangesintherunning behaviorinSanDiego,itcanreallyonlybehappeningthroughtheinfluencesofthe friendswholivebetweenNewYorkandSanDiego. Andthatisexactlywhatheandhiscolleaguesaw:thatthebehaviorofonecity’s runnerscouldindeedaffectthebehaviorofrunnersinanothersociallyconnectedcity. Womentendedtobeinfluencedmorebythefemalerunnersintheirnetworks.Andless activerunnerstendedtoinfluencemoreactiverunnerstorunmore,butnotsomuchthe otherwayaround. Still,thiscouldbevaluableforhealthprofessionals.Wehavetostartthinkingof “ consumersandcitizensasnetworkedconsumersandcitizens.Wheretheyareinfluenced byandinfluencetheirsocialnetworkinverystrongways,thatwillchangethewaya particularintervention()succeedsorfails. 干涉” Inotherwords,ifyourprescriptionismoreexercise,thedoctorsmightwanttowrite aprescriptionforyourfriendsandfamily,too. 【】 本文主要介绍了锻炼也会传染。 解题导语 1Whatdoestheunderlinedword“contagious”inParagraph1mean? ．