lyareoftentiredandcan’tconcentrateinclass.“Youngchildrenlovetogetupearlybutteenagershaveadifferentbiologicalclock,”saysaprofessorofBrownUniversity.Herresearchshowedthatteenagersnaturallygotosleepandwakeuplaterthannormal–forgoodbiologicalreasons.NowmanyAmericanschoolshavechangedthatstartoftheirmorningclassesfrom7.30to8.30oreven9.00.PartTwo:Makequickresponsestothesentencesyouhear:(telephonering)Hello,mayIspeaktoMr.Smith?I’ettobringthebookhere.I’etomybirthdayparty.Whynothaveanothercupoftea?You’rebusy.IsthereanythingIcandoforyou?PartThree:Asktwoquestionsabouteachsituationgivenbelow.Atleastonespecialquestionshouldbeaskedabouteachsituation:(1-2)YouareinyourEnglishteacher’soffice,askingtheteachertwoquestionsaboutEnglishlearning.(3-4)YouhaveanewdeskmateBob.Youwanttogettoknowhim.Askhimtwoquestions.
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