题型训练语法填空（八）阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。 Whydomanyofusfind61difficultorimpossibletofallasleepinabedotherthanourown?Isitbecausethebedis62(comfort)?AccordingtoanewstudypublishedinCurrentBiology,asignificantreasonis63thescientistscall“firstnighteffect”.Theybelievethatonesideofthebrainactsasa“nightwatch”towarnusaboutpotentialdangers.Itforcesus64(stay)awakeonthefirstnightinanewenvironment.Forthestudy,35youngvolunteers65(ask)tosleepinasleeplabforseveraldays.Meanwhile,researcherswatchedtheirbrainactivities.Accordingtotheresearchers,ontheirfirstnight,theleftbrainswere66(active)thantherightbrainsandpeoplehadahardtimesleeping.However,left-brainactivitydecreasedasdayswentby,67(fall)eventothepointofcompletecalm.Inthisprocess,theparticipantsgotanincreasinglybettersleepexperience.The68(finding)suggestthatthedifferentrhythmsofthesidesofthebrainaffectoursleep.Whenthetwosideswork69(different),thebalancebetweenthemisbroken.Thus,thebraincan’trelaxandissensitivetoanythingstrangeinthesurroundings,just70itisinthedaytime.参考答案61.it62.uncomfortable63.what64.tostay65.wereasked66.moreactive67.falling68.findings69.differently70.as
