Questions 47 to 56 arebasedonthefollowingpassage.
Thepopularnotionthatolderpeopleneedlesssleepthanyoungeradultsisamyth, scientistssaidyesterday.
Whileelderlypeople __47__ tosleepforfewerhoursthantheydidwhentheywereyounger, thishasa(n) __48__ effectontheirbrain'sperformanceandtheywouldbenefitfromgettingmore, accordingtoresearch.
SeanDrummond, a. psychiatrist (心理医生) attheUniversityofCalifornia, SanDiego, saidolderpeoplearemorelikelytosufferfrombrokensleep, whileyoungerpeoplearebetteratsleeping __49__ straightthroughthenight.
Moresleepinoldage, however, is __50__ withbetterhealth, andmostolderpeoplewouldfeelbetterandmore __51__ iftheysleptforlongerperiods, hesaid.
“Theabilitytosleepinonechunk (整块时间) overnightgoesdownasweagebuttheamountofsleepweneedto __52__ welldoesnotchange,” DrDrummondtoldtheAmericanAssociationfortheAdvancementofScienceconferenceinSanDiego.
“It's __53__ amyththatolderpeopleneedlesssleep. Themorehealthyanolderadultis, themoretheysleepliketheydidwhentheywere __54__. Ourdatasuggeststhatolderadultswouldbenefitfrom __55__ togetasmuchsleepastheydidintheir 30s. That's __56__ frompersontoperson, buttheamountofsleepwehadat 35 isprobablythesameamountasweneedat 75.”
注意：此部分试题请在答题卡2上作答。
A) alertI) formally
B) associatedJ) function
C) attractingK) mixed
D) clingL) negative
E) continuingM) sufficient
F) definitelyN) tend
G) differentO) younger