【Williaround100studentsscheduledtobeinthat9amMondaymorninglectureitisnosurprisethatalmost20peopleactuallymakeittotheclassandonly10ofthemarcstillawakeafterthefirstISminutes;itisnotevenasurprisetha】
Williaround100studentsscheduledtobeinthat9amMondaymorninglectureitisnosurprisethatalmost20peopleactuallymakeittotheclassandonly10ofthemarcstillawakeafterthefirstISminutes;itisnotevenasurprisethatmostofthemarestillintheirpyjamas(睡衣).Obviouslystudentsareterribleatadjustingtheirsleepcyclestotheirdailyschedule.
Allhumanbeingspossessabodyclock.Alongwithotheralerting(警报)systemsthisgovernsthesleep/wakecycleandisthereforeoneofthemainprocesseswhichgovernsleepbehaviour.Typicallythepreferredsleep/wakecycleisdelayedinadolescentswhichleadstomanystudentsnotfeelingsleepyuntilmuchlaterintheevenings.Thistypicalsleeppatternisusuallyreferredtoasthe"nightowl"scheduleofsleep.
Thisisopposedtothe"earlybird"scheduleandisakindofdisorderwheretheindividualtendstostayupmuchpastmidnight.Suchapersonhasgreatdifficultyinwakingupinthemornings.Researchsuggeststhatnightowlsfeelmostalertandfunctionbestintheeveningsandatnight.Researchfindingshaveshownthatabout20percentofpeoplecanbeclassifiedas"nightowls"andonly10percentcanbeclassifiedas"earlybirds"-theother70percentareinthemiddle.Althoughthisisclearlynottrueforallstudentsfortheoneswhoaretruenightowlsthisgivesthemanexcellentexcuseformissingtheirlectureswhichunfortunatelyfallbeforemidday.
1.WhatdocstheauthorstressinParagraphI?
A.Manystudentsareabsentfromclass.
B.StudentsareverytiredonMondaymornings.
C.Studentsdonotadjusttheirsleeppatternswell.
D.StudentsarenotwellpreparedforclassonMondays.
2.WhichofthefollowingistrueaccordingtoParagraph2?
A.Moststudentsprefertogetuplateinthemorning.
B.Studentsdon'tsleepwellbecauseofalertingsystems.
C.One'sbodyclockgovernsthesleep/wakecycleindependently.
D.Adolescents'delayedsleep/wakecycleisn'tthepreferredpattern.
3.Whichofthefollowingisclosestinmeaningtotheunderlinedword"classified"?
A.Criticised.