Asurveybasingon1000studentsfoundthathalfofthepupilsand80%ofthemiddleschoolstudentssleepslessthanninehourseverynight.Toomanyhomeworkgivenbyschoolteachersandparentsisthemainreasons.Otherreasonliesin

　　Asurveybasingon1000studentsfoundthathalfofthepupilsand80%ofthemiddleschoolstudentssleepslessthanninehourseverynight.Toomanyhomeworkgivenbyschoolteachersandparentsisthemainreasons.Otherreasonliesinstudents’badhabits.Somestudentsforexampleareabsent-mindedwhiledoinghishomeworkandsomewastetheirafter-classtime.Thethirdreasonisbecausesomestudentshavetogetupearlyonweekdaystogetschoolfarawayfromhome.Expertsarecallingatschoolsandparentstocutdownontheamountofhomework.Andstudentsshouldmakeagooduseoftheirtime.Anditwouldbebetteriftheycouldchoosetostudyinanearbyschool.